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authorRob Herring <r.herring@freescale.com>2009-01-25 19:43:26 -0500
committerRob Herring <r.herring@freescale.com>2009-02-17 11:32:54 -0600
commitaa2643ed8f7c03f8dc68b7f6f5b290f490385a43 (patch)
treede6fe3e0850e5195b3f33e694c6345faabd1754f /drivers/video
parent484ecd8c05117a795d856e57e45be48ecea07eae (diff)
ENGR00107731-2: Port imx 3.3.0 release to 2.6.28
Port rel_imx_2.6.26_3.3.0 to 2.6.28. PMIC Regulator and ASoC drivers are removed and not yet ported. Updated asm/arch headers for move to plat-mxc/include/mach device_create parameters changed. sysdev attribute functions changed. Adopt mainline MX3 timer code and update clock init flow. Signed-off-by: Rob Herring <r.herring@freescale.com>
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/Kconfig4
-rw-r--r--drivers/video/Makefile1
-rw-r--r--drivers/video/backlight/Kconfig33
-rw-r--r--drivers/video/backlight/Makefile5
-rw-r--r--drivers/video/backlight/mxc_ipu_bl.c156
-rw-r--r--drivers/video/backlight/mxc_lcdc_bl.c160
-rw-r--r--drivers/video/backlight/mxc_mc13892_bl.c134
-rw-r--r--drivers/video/backlight/mxc_pmic_bl.c197
-rw-r--r--drivers/video/backlight/wm8350_bl.c303
-rw-r--r--drivers/video/mxc/Kconfig82
-rw-r--r--drivers/video/mxc/Makefile21
-rw-r--r--drivers/video/mxc/ch7024.c864
-rw-r--r--drivers/video/mxc/fs453.c494
-rw-r--r--drivers/video/mxc/fs453.h134
-rw-r--r--drivers/video/mxc/mx2fb.c1347
-rw-r--r--drivers/video/mxc/mx2fb.h141
-rw-r--r--drivers/video/mxc/mxc_ipuv3_fb.c1115
-rw-r--r--drivers/video/mxc/mxcfb.c1481
-rw-r--r--drivers/video/mxc/mxcfb_claa_wvga.c234
-rw-r--r--drivers/video/mxc/mxcfb_epson.c1158
-rw-r--r--drivers/video/mxc/mxcfb_epson_vga.c357
-rw-r--r--drivers/video/mxc/mxcfb_modedb.c69
-rw-r--r--drivers/video/mxc/tve.c466
23 files changed, 8956 insertions, 0 deletions
diff --git a/drivers/video/Kconfig b/drivers/video/Kconfig
index 3f3ce13fef43..259de31c0dca 100644
--- a/drivers/video/Kconfig
+++ b/drivers/video/Kconfig
@@ -381,6 +381,10 @@ config FB_CLPS711X
Say Y to enable the Framebuffer driver for the CLPS7111 and
EP7212 processors.
+if ARCH_MXC
+source "drivers/video/mxc/Kconfig"
+endif
+
config FB_SA1100
bool "SA-1100 LCD support"
depends on (FB = y) && ARM && ARCH_SA1100
diff --git a/drivers/video/Makefile b/drivers/video/Makefile
index e39e33e797da..29613d5c4792 100644
--- a/drivers/video/Makefile
+++ b/drivers/video/Makefile
@@ -114,6 +114,7 @@ obj-$(CONFIG_FB_FSL_DIU) += fsl-diu-fb.o
obj-$(CONFIG_FB_COBALT) += cobalt_lcdfb.o
obj-$(CONFIG_FB_PNX4008_DUM) += pnx4008/
obj-$(CONFIG_FB_PNX4008_DUM_RGB) += pnx4008/
+obj-$(CONFIG_FB_MXC) += mxc/
obj-$(CONFIG_FB_IBM_GXT4500) += gxt4500.o
obj-$(CONFIG_FB_PS3) += ps3fb.o
obj-$(CONFIG_FB_SM501) += sm501fb.o
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig
index 4a4dd9adc328..82f2f07e1915 100644
--- a/drivers/video/backlight/Kconfig
+++ b/drivers/video/backlight/Kconfig
@@ -214,3 +214,36 @@ config BACKLIGHT_SAHARA
help
If you have a Tabletkiosk Sahara Touch-iT, say y to enable the
backlight driver.
+
+menuconfig BACKLIGHT_MXC
+ bool "Freescale MXC/i.MX Backlight Drivers"
+ depends on BACKLIGHT_CLASS_DEVICE && ARCH_MXC
+ default y
+ help
+ If you have a Freescale MC13783 PMIC, say y to enable the
+ backlight driver.
+
+config BACKLIGHT_MXC_IPU
+ tristate "IPU PWM Backlight Driver"
+ depends on BACKLIGHT_MXC && MXC_IPU_V1
+ default y
+
+config BACKLIGHT_MXC_LCDC
+ tristate "LCDC PWM Backlight Driver"
+ depends on BACKLIGHT_MXC && (ARCH_MX21 || ARCH_MX27 || ARCH_MX25)
+ default y
+
+config BACKLIGHT_MXC_PMIC
+ tristate "PMIC Backlight Driver"
+ depends on BACKLIGHT_MXC && MXC_MC13783_LIGHT && MXC_MC13783_POWER
+ default y
+
+config BACKLIGHT_MXC_MC13892
+ tristate "Mc13892 Backlight Driver"
+ depends on BACKLIGHT_MXC && MXC_MC13892_LIGHT
+ default y
+
+config BACKLIGHT_WM8350
+ tristate "WM8350 Backlight Driver"
+ depends on BACKLIGHT_MXC && REGULATOR_WM8350
+ default y
diff --git a/drivers/video/backlight/Makefile b/drivers/video/backlight/Makefile
index 103427de6703..83c1a38d5314 100644
--- a/drivers/video/backlight/Makefile
+++ b/drivers/video/backlight/Makefile
@@ -23,3 +23,8 @@ obj-$(CONFIG_BACKLIGHT_MBP_NVIDIA) += mbp_nvidia_bl.o
obj-$(CONFIG_BACKLIGHT_TOSA) += tosa_bl.o
obj-$(CONFIG_BACKLIGHT_SAHARA) += kb3886_bl.o
+obj-$(CONFIG_BACKLIGHT_MXC_LCDC) += mxc_lcdc_bl.o
+obj-$(CONFIG_BACKLIGHT_MXC_IPU) += mxc_ipu_bl.o
+obj-$(CONFIG_BACKLIGHT_MXC_PMIC) += mxc_pmic_bl.o
+obj-$(CONFIG_BACKLIGHT_WM8350) += wm8350_bl.o
+obj-$(CONFIG_BACKLIGHT_MXC_MC13892) += mxc_mc13892_bl.o
diff --git a/drivers/video/backlight/mxc_ipu_bl.c b/drivers/video/backlight/mxc_ipu_bl.c
new file mode 100644
index 000000000000..4dc7d6880c81
--- /dev/null
+++ b/drivers/video/backlight/mxc_ipu_bl.c
@@ -0,0 +1,156 @@
+/*
+ * Copyright 2007-2009 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+/*!
+ * @defgroup IPU_BL MXC IPU Backlight Driver
+ */
+/*!
+ * @file mxc_ipu_bl.c
+ *
+ * @brief Backlight Driver for IPU PWM on Freescale MXC/i.MX platforms.
+ *
+ * This file contains API defined in include/linux/clk.h for setting up and
+ * retrieving clocks.
+ *
+ * Based on Sharp's Corgi Backlight Driver
+ *
+ * @ingroup IPU_BL
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+#include <linux/fb.h>
+#include <linux/backlight.h>
+
+#include <mach/ipu.h>
+
+#define MXC_MAX_INTENSITY 255
+#define MXC_DEFAULT_INTENSITY 127
+#define MXC_INTENSITY_OFF 0
+
+struct mxcbl_dev_data {
+ int intensity;
+};
+
+static int fb_id;
+
+static int mxcbl_send_intensity(struct backlight_device *bd)
+{
+ int intensity = bd->props.brightness;
+ struct mxcbl_dev_data *devdata = dev_get_drvdata(&bd->dev);
+
+ if (bd->props.power != FB_BLANK_UNBLANK)
+ intensity = 0;
+ if (bd->props.fb_blank != FB_BLANK_UNBLANK)
+ intensity = 0;
+
+ ipu_sdc_set_brightness(intensity);
+
+ devdata->intensity = intensity;
+ return 0;
+}
+
+static int mxcbl_get_intensity(struct backlight_device *bd)
+{
+ struct mxcbl_dev_data *devdata = dev_get_drvdata(&bd->dev);
+ return devdata->intensity;
+}
+
+static int mxcbl_check_fb(struct fb_info *info)
+{
+ int id = info->fix.id[4] - '0';
+ if (id == fb_id) {
+ if ((id == 3) && !strcmp(info->fix.id, "DISP3 FG")) {
+ return 0;
+ }
+ return 1;
+ }
+ return 0;
+}
+
+static struct backlight_ops mxcbl_ops = {
+ .get_brightness = mxcbl_get_intensity,
+ .update_status = mxcbl_send_intensity,
+ .check_fb = mxcbl_check_fb,
+};
+
+static int __init mxcbl_probe(struct platform_device *pdev)
+{
+ struct backlight_device *bd;
+ struct mxcbl_dev_data *devdata;
+ int ret = 0;
+
+ devdata = kzalloc(sizeof(struct mxcbl_dev_data), GFP_KERNEL);
+ if (!devdata)
+ return -ENOMEM;
+ fb_id = (int)pdev->dev.platform_data;
+
+ bd = backlight_device_register(pdev->dev.bus_id, &pdev->dev, devdata,
+ &mxcbl_ops);
+ if (IS_ERR(bd)) {
+ ret = PTR_ERR(bd);
+ goto err0;
+ }
+ platform_set_drvdata(pdev, bd);
+
+ bd->props.brightness = MXC_DEFAULT_INTENSITY;
+ bd->props.max_brightness = MXC_MAX_INTENSITY;
+ bd->props.power = FB_BLANK_UNBLANK;
+ bd->props.fb_blank = FB_BLANK_UNBLANK;
+ backlight_update_status(bd);
+
+ printk("MXC Backlight Device %s Initialized.\n", pdev->dev.bus_id);
+ return 0;
+ err0:
+ kfree(devdata);
+ return ret;
+}
+
+static int mxcbl_remove(struct platform_device *pdev)
+{
+ struct backlight_device *bd = platform_get_drvdata(pdev);
+
+ bd->props.brightness = MXC_INTENSITY_OFF;
+ backlight_update_status(bd);
+
+ backlight_device_unregister(bd);
+
+ return 0;
+}
+
+static struct platform_driver mxcbl_driver = {
+ .probe = mxcbl_probe,
+ .remove = mxcbl_remove,
+ .driver = {
+ .name = "mxc_ipu_bl",
+ },
+};
+
+static int __init mxcbl_init(void)
+{
+ return platform_driver_register(&mxcbl_driver);
+}
+
+static void __exit mxcbl_exit(void)
+{
+ platform_driver_unregister(&mxcbl_driver);
+}
+
+late_initcall(mxcbl_init);
+module_exit(mxcbl_exit);
+
+MODULE_DESCRIPTION("Freescale MXC/i.MX IPU PWM Backlight Driver");
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/backlight/mxc_lcdc_bl.c b/drivers/video/backlight/mxc_lcdc_bl.c
new file mode 100644
index 000000000000..25076e07acbe
--- /dev/null
+++ b/drivers/video/backlight/mxc_lcdc_bl.c
@@ -0,0 +1,160 @@
+/*
+ * Copyright 2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+/*!
+ * @defgroup LCDC_BL MXC LCDC Backlight Driver
+ */
+/*!
+ * @file mxc_lcdc_bl.c
+ *
+ * @brief Backlight Driver for LCDC PWM on Freescale MXC/i.MX platforms.
+ *
+ * This file contains API defined in include/linux/clk.h for setting up and
+ * retrieving clocks.
+ *
+ * Based on Sharp's Corgi Backlight Driver
+ *
+ * @ingroup LCDC_BL
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+#include <linux/fb.h>
+#include <linux/backlight.h>
+#include <linux/clk.h>
+
+#define MXC_MAX_INTENSITY 255
+#define MXC_DEFAULT_INTENSITY 127
+#define MXC_INTENSITY_OFF 0
+
+extern void mx2fb_set_brightness(uint8_t);
+
+struct mxcbl_dev_data {
+ struct clk *clk;
+ int intensity;
+};
+
+static int mxcbl_send_intensity(struct backlight_device *bd)
+{
+ int intensity = bd->props.brightness;
+ struct mxcbl_dev_data *devdata = dev_get_drvdata(&bd->dev);
+
+ if (bd->props.power != FB_BLANK_UNBLANK)
+ intensity = 0;
+ if (bd->props.fb_blank != FB_BLANK_UNBLANK)
+ intensity = 0;
+
+ if ((devdata->intensity == 0) && (intensity != 0))
+ clk_enable(devdata->clk);
+
+ /* PWM contrast control register */
+ mx2fb_set_brightness(intensity);
+
+ if ((devdata->intensity != 0) && (intensity == 0))
+ clk_disable(devdata->clk);
+
+ devdata->intensity = intensity;
+ return 0;
+}
+
+static int mxcbl_get_intensity(struct backlight_device *bd)
+{
+ struct mxcbl_dev_data *devdata = dev_get_drvdata(&bd->dev);
+ return devdata->intensity;
+}
+
+static int mxcbl_check_fb(struct fb_info *info)
+{
+ if (strcmp(info->fix.id, "DISP0 BG") == 0) {
+ return 1;
+ }
+ return 0;
+}
+
+static struct backlight_ops mxcbl_ops = {
+ .get_brightness = mxcbl_get_intensity,
+ .update_status = mxcbl_send_intensity,
+ .check_fb = mxcbl_check_fb,
+};
+
+static int __init mxcbl_probe(struct platform_device *pdev)
+{
+ struct backlight_device *bd;
+ struct mxcbl_dev_data *devdata;
+ int ret = 0;
+
+ devdata = kzalloc(sizeof(struct mxcbl_dev_data), GFP_KERNEL);
+ if (!devdata)
+ return -ENOMEM;
+
+ devdata->clk = clk_get(NULL, "lcdc_clk");
+
+ bd = backlight_device_register(pdev->dev.bus_id, &pdev->dev, devdata,
+ &mxcbl_ops);
+ if (IS_ERR(bd)) {
+ ret = PTR_ERR(bd);
+ goto err0;
+ }
+ platform_set_drvdata(pdev, bd);
+
+ bd->props.brightness = MXC_DEFAULT_INTENSITY;
+ bd->props.max_brightness = MXC_MAX_INTENSITY;
+ bd->props.power = FB_BLANK_UNBLANK;
+ bd->props.fb_blank = FB_BLANK_UNBLANK;
+ mx2fb_set_brightness(MXC_DEFAULT_INTENSITY);
+
+ printk("MXC Backlight Device %s Initialized.\n", pdev->dev.bus_id);
+ return 0;
+ err0:
+ kfree(devdata);
+ return ret;
+}
+
+static int mxcbl_remove(struct platform_device *pdev)
+{
+ struct backlight_device *bd = platform_get_drvdata(pdev);
+
+ bd->props.brightness = MXC_INTENSITY_OFF;
+ backlight_update_status(bd);
+
+ backlight_device_unregister(bd);
+
+ return 0;
+}
+
+static struct platform_driver mxcbl_driver = {
+ .probe = mxcbl_probe,
+ .remove = mxcbl_remove,
+ .driver = {
+ .name = "mxc_lcdc_bl",
+ },
+};
+
+static int __init mxcbl_init(void)
+{
+ return platform_driver_register(&mxcbl_driver);
+}
+
+static void __exit mxcbl_exit(void)
+{
+ platform_driver_unregister(&mxcbl_driver);
+}
+
+module_init(mxcbl_init);
+module_exit(mxcbl_exit);
+
+MODULE_DESCRIPTION("Freescale MXC/i.MX LCDC PWM Backlight Driver");
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/backlight/mxc_mc13892_bl.c b/drivers/video/backlight/mxc_mc13892_bl.c
new file mode 100644
index 000000000000..76eaf2fd8a9b
--- /dev/null
+++ b/drivers/video/backlight/mxc_mc13892_bl.c
@@ -0,0 +1,134 @@
+/*
+ * Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+#include <linux/fb.h>
+#include <linux/backlight.h>
+
+#include <mach/pmic_light.h>
+
+/*
+#define MXC_MAX_INTENSITY 255
+#define MXC_DEFAULT_INTENSITY 127
+*/
+/* workaround for atlas hot issue */
+#define MXC_MAX_INTENSITY 128
+#define MXC_DEFAULT_INTENSITY 64
+
+#define MXC_INTENSITY_OFF 0
+
+static int intensity;
+
+static int mxcbl_set_intensity(struct backlight_device *bd)
+{
+ int brightness = bd->props.brightness;
+
+ if (bd->props.power != FB_BLANK_UNBLANK)
+ brightness = 0;
+ if (bd->props.fb_blank != FB_BLANK_UNBLANK)
+ brightness = 0;
+
+ brightness = brightness / 4;
+ mc13892_bklit_set_dutycycle(LIT_MAIN, brightness);
+
+ intensity = brightness;
+
+ return 0;
+}
+
+static int mxcbl_get_intensity(struct backlight_device *bd)
+{
+ return intensity;
+}
+
+static int mxcbl_check_fb(struct fb_info *info)
+{
+ char *id = info->fix.id;
+
+ if (!strcmp(id, "DISP3 BG"))
+ return 1;
+ else
+ return 0;
+}
+
+static struct backlight_ops bl_ops;
+
+static int __init mxcbl_probe(struct platform_device *pdev)
+{
+ int ret = 0;
+ struct backlight_device *bd;
+
+ pr_debug("mc13892 backlight start probe\n");
+
+ bl_ops.check_fb = mxcbl_check_fb;
+ bl_ops.get_brightness = mxcbl_get_intensity;
+ bl_ops.update_status = mxcbl_set_intensity;
+ bd = backlight_device_register(pdev->dev.bus_id, &pdev->dev, NULL,
+ &bl_ops);
+ if (IS_ERR(bd)) {
+ ret = PTR_ERR(bd);
+ return ret;
+ }
+
+ platform_set_drvdata(pdev, bd);
+
+ /* according to LCD spec, current should be 18mA */
+ /* workaround for atlas hot issue, set current 15mA */
+ mc13892_bklit_set_current(LIT_MAIN, LIT_CURR_15);
+ bd->props.brightness = MXC_DEFAULT_INTENSITY;
+ bd->props.max_brightness = MXC_MAX_INTENSITY;
+ bd->props.power = FB_BLANK_UNBLANK;
+ bd->props.fb_blank = FB_BLANK_UNBLANK;
+ backlight_update_status(bd);
+ pr_debug("mc13892 backlight probed successfully\n");
+
+ return 0;
+}
+
+static int mxcbl_remove(struct platform_device *pdev)
+{
+ struct backlight_device *bd = platform_get_drvdata(pdev);
+
+ backlight_device_unregister(bd);
+
+ return 0;
+}
+
+static struct platform_driver mxcbl_driver = {
+ .probe = mxcbl_probe,
+ .remove = mxcbl_remove,
+ .driver = {
+ .name = "mxc_mc13892_bl",
+ },
+};
+
+static int __init mxcbl_init(void)
+{
+ return platform_driver_register(&mxcbl_driver);
+}
+
+static void __exit mxcbl_exit(void)
+{
+ platform_driver_unregister(&mxcbl_driver);
+}
+
+module_init(mxcbl_init);
+module_exit(mxcbl_exit);
+
+MODULE_DESCRIPTION("Freescale MXC/i.MX PMIC Backlight Driver");
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/backlight/mxc_pmic_bl.c b/drivers/video/backlight/mxc_pmic_bl.c
new file mode 100644
index 000000000000..ca6908ff2410
--- /dev/null
+++ b/drivers/video/backlight/mxc_pmic_bl.c
@@ -0,0 +1,197 @@
+/*
+ * Copyright 2007-2009 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+/*!
+ * @defgroup PMIC_BL MXC PMIC Backlight Driver
+ */
+/*!
+ * @file mxc_pmic_bl.c
+ *
+ * @brief PMIC Backlight Driver for Freescale MXC/i.MX platforms.
+ *
+ * This file contains API defined in include/linux/clk.h for setting up and
+ * retrieving clocks.
+ *
+ * Based on Sharp's Corgi Backlight Driver
+ *
+ * @ingroup PMIC_BL
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+#include <linux/fb.h>
+#include <linux/backlight.h>
+
+#include <mach/pmic_power.h>
+#include <mach/pmic_light.h>
+
+#define MXC_MAX_INTENSITY 255
+#define MXC_DEFAULT_INTENSITY 127
+#define MXC_INTENSITY_OFF 0
+
+struct mxcbl_dev_data {
+ int bl_id;
+ int intensity;
+ struct backlight_ops bl_ops;
+};
+
+static int pmic_bl_use_count;
+static int main_fb_id;
+static int sec_fb_id;
+
+static int mxcbl_send_intensity(struct backlight_device *bd)
+{
+ int intensity = bd->props.brightness;
+ struct mxcbl_dev_data *devdata = dev_get_drvdata(&bd->dev);
+
+ if (bd->props.power != FB_BLANK_UNBLANK)
+ intensity = 0;
+ if (bd->props.fb_blank != FB_BLANK_UNBLANK)
+ intensity = 0;
+
+ intensity = intensity / 16;
+ pmic_bklit_set_dutycycle(devdata->bl_id, intensity);
+
+ devdata->intensity = intensity;
+ return 0;
+}
+
+static int mxcbl_get_intensity(struct backlight_device *bd)
+{
+ struct mxcbl_dev_data *devdata = dev_get_drvdata(&bd->dev);
+ return devdata->intensity;
+}
+
+static int mxcbl_check_main_fb(struct fb_info *info)
+{
+ int id = info->fix.id[4] - '0';
+
+ if (id == main_fb_id) {
+ return 1;
+ } else {
+ return 0;
+ }
+}
+
+static int mxcbl_check_sec_fb(struct fb_info *info)
+{
+ int id = info->fix.id[4] - '0';
+
+ if (id == sec_fb_id) {
+ return 1;
+ } else {
+ return 0;
+ }
+}
+
+static int __init mxcbl_probe(struct platform_device *pdev)
+{
+ int ret = 0;
+ struct backlight_device *bd;
+ struct mxcbl_dev_data *devdata;
+
+ devdata = kzalloc(sizeof(struct mxcbl_dev_data), GFP_KERNEL);
+ if (!devdata)
+ return -ENOMEM;
+ devdata->bl_id = pdev->id;
+
+ if (pdev->id == 0) {
+ devdata->bl_ops.check_fb = mxcbl_check_main_fb;
+ main_fb_id = (int)pdev->dev.platform_data;
+ } else {
+ devdata->bl_ops.check_fb = mxcbl_check_sec_fb;
+ sec_fb_id = (int)pdev->dev.platform_data;
+ }
+
+ devdata->bl_ops.get_brightness = mxcbl_get_intensity;
+ devdata->bl_ops.update_status = mxcbl_send_intensity,
+ bd =
+ backlight_device_register(pdev->dev.bus_id, &pdev->dev, devdata,
+ &devdata->bl_ops);
+ if (IS_ERR(bd)) {
+ ret = PTR_ERR(bd);
+ goto err0;
+ }
+
+ platform_set_drvdata(pdev, bd);
+
+ if (pmic_bl_use_count++ == 0) {
+ pmic_power_regulator_on(SW_SW3);
+ pmic_power_regulator_set_lp_mode(SW_SW3, LOW_POWER_CTRL_BY_PIN);
+
+ pmic_bklit_tcled_master_enable();
+ pmic_bklit_enable_edge_slow();
+ pmic_bklit_set_cycle_time(0);
+ }
+
+ pmic_bklit_set_current(devdata->bl_id, 7);
+ bd->props.brightness = MXC_DEFAULT_INTENSITY;
+ bd->props.max_brightness = MXC_MAX_INTENSITY;
+ bd->props.power = FB_BLANK_UNBLANK;
+ bd->props.fb_blank = FB_BLANK_UNBLANK;
+ backlight_update_status(bd);
+
+ printk("MXC Backlight Device %s Initialized.\n", pdev->dev.bus_id);
+ return 0;
+ err0:
+ kfree(devdata);
+ return ret;
+}
+
+static int mxcbl_remove(struct platform_device *pdev)
+{
+ struct backlight_device *bd = platform_get_drvdata(pdev);
+
+ bd->props.brightness = MXC_INTENSITY_OFF;
+ backlight_update_status(bd);
+
+ if (--pmic_bl_use_count == 0) {
+ pmic_bklit_tcled_master_disable();
+
+ pmic_power_regulator_off(SW_SW3);
+ pmic_power_regulator_set_lp_mode(SW_SW3, LOW_POWER_CTRL_BY_PIN);
+ }
+
+ backlight_device_unregister(bd);
+
+ printk("MXC Backlight Driver Unloaded\n");
+
+ return 0;
+}
+
+static struct platform_driver mxcbl_driver = {
+ .probe = mxcbl_probe,
+ .remove = mxcbl_remove,
+ .driver = {
+ .name = "mxc_pmic_bl",
+ },
+};
+
+static int __init mxcbl_init(void)
+{
+ return platform_driver_register(&mxcbl_driver);
+}
+
+static void __exit mxcbl_exit(void)
+{
+ platform_driver_unregister(&mxcbl_driver);
+}
+
+module_init(mxcbl_init);
+module_exit(mxcbl_exit);
+
+MODULE_DESCRIPTION("Freescale MXC/i.MX PMIC Backlight Driver");
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/backlight/wm8350_bl.c b/drivers/video/backlight/wm8350_bl.c
new file mode 100644
index 000000000000..1271518b447e
--- /dev/null
+++ b/drivers/video/backlight/wm8350_bl.c
@@ -0,0 +1,303 @@
+/*
+ * Backlight driver for DCDC2 on i.MX32ADS board
+ *
+ * Copyright(C) 2007 Wolfson Microelectronics PLC.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/init.h>
+#include <linux/mutex.h>
+#include <linux/fb.h>
+#include <linux/platform_device.h>
+#include <linux/backlight.h>
+#include <linux/regulator/regulator.h>
+#include <linux/regulator/wm8350/wm8350-bus.h>
+
+struct wm8350_backlight {
+ struct backlight_properties props;
+ struct backlight_device *device;
+ struct regulator *dcdc;
+ struct regulator *isink;
+ struct notifier_block notifier;
+ struct work_struct work;
+ struct mutex mutex;
+ int intensity;
+ int suspend;
+ int retries;
+};
+
+/* hundredths of uA, 405 = 4.05 uA */
+static const int intensity_huA[] = {
+ 405, 482, 573, 681, 810, 963, 1146, 1362, 1620, 1927, 2291, 2725,
+ 3240, 3853, 4582, 5449, 6480, 7706, 9164, 10898, 12960, 15412, 18328,
+ 21796, 25920, 30824, 36656, 43592, 51840, 61648, 73313, 87184,
+ 103680, 123297, 146626, 174368, 207360, 246594, 293251, 348737,
+ 414720, 493188, 586503, 697473, 829440, 986376, 1173005, 1394946,
+ 1658880, 1972752, 2346011, 2789892, 3317760, 3945504, 4692021,
+ 5579785, 6635520, 7891008, 9384042, 11159570, 13271040, 15782015,
+ 18768085, 22319140,
+};
+
+static void bl_work(struct work_struct *work)
+{
+ struct wm8350_backlight *bl =
+ container_of(work, struct wm8350_backlight, work);
+ struct regulator *isink = bl->isink;
+
+ mutex_lock(&bl->mutex);
+ if (bl->intensity >= 0 &&
+ bl->intensity < ARRAY_SIZE(intensity_huA)) {
+ bl->retries = 0;
+ regulator_set_current(isink,
+ intensity_huA[bl->intensity] / 100);
+ } else
+ printk(KERN_ERR "wm8350: Backlight intensity error\n");
+ mutex_unlock(&bl->mutex);
+}
+
+static int wm8350_bl_notifier(struct notifier_block *self,
+ unsigned long event, void *data)
+{
+ struct wm8350_backlight *bl =
+ container_of(self, struct wm8350_backlight, notifier);
+ struct regulator *isink = bl->isink;
+
+ if (event & REGULATOR_EVENT_UNDER_VOLTAGE)
+ printk(KERN_ERR "wm8350: BL DCDC undervoltage\n");
+ if (event & REGULATOR_EVENT_REGULATION_OUT)
+ printk(KERN_ERR "wm8350: BL ISINK out of regulation\n");
+
+ mutex_lock(&bl->mutex);
+ if (bl->retries) {
+ bl->retries--;
+ regulator_disable(isink);
+ regulator_set_current(isink, bl->intensity);
+ regulator_enable(isink);
+ } else {
+ printk(KERN_ERR
+ "wm8350: BL regulation retry failure - disable\n");
+ bl->intensity = 0;
+ regulator_disable(isink);
+ }
+ mutex_unlock(&bl->mutex);
+ return 0;
+}
+
+static int wm8350_bl_send_intensity(struct backlight_device *bd)
+{
+ struct wm8350_backlight *bl =
+ (struct wm8350_backlight *)dev_get_drvdata(&bd->dev);
+ int intensity = bd->props.brightness;
+
+ if (bd->props.power != FB_BLANK_UNBLANK)
+ intensity = 0;
+ if (bd->props.fb_blank != FB_BLANK_UNBLANK)
+ intensity = 0;
+ if (bl->suspend)
+ intensity = 0;
+
+ mutex_lock(&bl->mutex);
+ bl->intensity = intensity;
+ mutex_unlock(&bl->mutex);
+ schedule_work(&bl->work);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int wm8350_bl_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct wm8350_backlight *bl =
+ (struct wm8350_backlight *)platform_get_drvdata(pdev);
+
+ bl->suspend = 1;
+ backlight_update_status(bl->device);
+ return 0;
+}
+
+static int wm8350_bl_resume(struct platform_device *pdev)
+{
+ struct wm8350_backlight *bl =
+ (struct wm8350_backlight *)platform_get_drvdata(pdev);
+
+ bl->suspend = 0;
+ backlight_update_status(bl->device);
+ return 0;
+}
+#else
+#define wm8350_bl_suspend NULL
+#define wm8350_bl_resume NULL
+#endif
+
+static int wm8350_bl_get_intensity(struct backlight_device *bd)
+{
+ struct wm8350_backlight *bl =
+ (struct wm8350_backlight *)dev_get_drvdata(&bd->dev);
+ return bl->intensity;
+}
+
+static struct backlight_ops wm8350_bl_ops = {
+ .get_brightness = wm8350_bl_get_intensity,
+ .update_status = wm8350_bl_send_intensity,
+};
+
+static int wm8350_bl_probe(struct platform_device *pdev)
+{
+ struct regulator *isink, *dcdc;
+ struct wm8350_backlight *bl;
+ struct wm8350_bl_platform_data *pdata = pdev->dev.platform_data;
+ struct wm8350_pmic *pmic;
+ int ret;
+
+ if (pdata == NULL) {
+ printk(KERN_ERR "%s: no platform data\n", __func__);
+ return -ENODEV;
+ }
+
+ if (pdata->isink != WM8350_ISINK_A && pdata->isink != WM8350_ISINK_B) {
+ printk(KERN_ERR "%s: invalid ISINK\n", __func__);
+ return -EINVAL;
+ }
+ if (pdata->dcdc != WM8350_DCDC_2 && pdata->dcdc != WM8350_DCDC_5) {
+ printk(KERN_ERR "%s: invalid DCDC\n", __func__);
+ return -EINVAL;
+ }
+
+ printk(KERN_INFO "wm8350: backlight using %s and %s\n",
+ pdata->isink == WM8350_ISINK_A ? "ISINKA" : "ISINKB",
+ pdata->dcdc == WM8350_DCDC_2 ? "DCDC2" : "DCDC5");
+
+ isink = regulator_get(&pdev->dev,
+ pdata->isink == WM8350_ISINK_A ? "ISINKA" : "ISINKB");
+ if (IS_ERR(isink) || isink == NULL) {
+ printk(KERN_ERR "%s: cant get ISINK\n", __func__);
+ return PTR_ERR(isink);
+ }
+
+ dcdc = regulator_get(&pdev->dev,
+ pdata->dcdc == WM8350_DCDC_2 ? "DCDC2" : "DCDC5");
+ if (IS_ERR(dcdc) || dcdc == NULL) {
+ printk(KERN_ERR "%s: cant get DCDC\n", __func__);
+ regulator_put(isink, &pdev->dev);
+ return PTR_ERR(dcdc);
+ }
+
+ bl = kzalloc(sizeof(*bl), GFP_KERNEL);
+ if (bl == NULL) {
+ regulator_put(isink, &pdev->dev);
+ regulator_put(dcdc, &pdev->dev);
+ return -ENOMEM;
+ }
+
+ mutex_init(&bl->mutex);
+ INIT_WORK(&bl->work, bl_work);
+ bl->props.max_brightness = pdata->max_brightness;
+ bl->props.power = pdata->power;
+ bl->props.brightness = pdata->brightness;
+ bl->retries = pdata->retries;
+ bl->dcdc = dcdc;
+ bl->isink = isink;
+ platform_set_drvdata(pdev, bl);
+ pmic = regulator_get_drvdata(bl->isink);
+
+ wm8350_bl_ops.check_fb = pdata->check_fb;
+
+ bl->device = backlight_device_register(pdev->dev.bus_id, &pdev->dev,
+ bl, &wm8350_bl_ops);
+ if (IS_ERR(bl->device)) {
+ ret = PTR_ERR(bl->device);
+ regulator_put(dcdc, &pdev->dev);
+ regulator_put(isink, &pdev->dev);
+ kfree(bl);
+ return ret;
+ }
+
+ bl->notifier.notifier_call = wm8350_bl_notifier;
+ regulator_register_client(dcdc, &bl->notifier);
+ regulator_register_client(isink, &bl->notifier);
+ bl->device->props = bl->props;
+
+ /* WM8350 ISINK & DCDC setup */
+ if (pdata->isink == WM8350_ISINK_A)
+ pmic->isink_A_dcdc = pdata->dcdc;
+ else
+ pmic->isink_B_dcdc = pdata->dcdc;
+
+ regulator_set_current(isink, 20000);
+
+ wm8350_isink_set_flash(pmic, pdata->isink,
+ WM8350_ISINK_FLASH_DISABLE,
+ WM8350_ISINK_FLASH_TRIG_BIT,
+ WM8350_ISINK_FLASH_DUR_32MS,
+ WM8350_ISINK_FLASH_ON_1_00S,
+ WM8350_ISINK_FLASH_OFF_1_00S,
+ WM8350_ISINK_FLASH_MODE_EN);
+
+ wm8350_dcdc25_set_mode(pmic, pdata->dcdc,
+ WM8350_ISINK_MODE_BOOST, WM8350_ISINK_ILIM_NORMAL,
+ pdata->voltage_ramp, pdata->isink == WM8350_ISINK_A ?
+ WM8350_DC5_FBSRC_ISINKA : WM8350_DC5_FBSRC_ISINKB);
+
+ wm8350_dcdc_set_slot(pmic, pdata->dcdc, 15, 0,
+ pdata->dcdc == WM8350_DCDC_2 ?
+ WM8350_DC2_ERRACT_SHUTDOWN_CONV : WM8350_DC5_ERRACT_NONE);
+
+ regulator_enable(isink);
+ backlight_update_status(bl->device);
+ return 0;
+}
+
+static int wm8350_bl_remove(struct platform_device *pdev)
+{
+ struct wm8350_backlight *bl =
+ (struct wm8350_backlight *)platform_get_drvdata(pdev);
+ struct regulator *isink = bl->isink, *dcdc = bl->dcdc;
+
+ bl->intensity = 0;
+ backlight_update_status(bl->device);
+ schedule_work(&bl->work);
+ flush_scheduled_work();
+ backlight_device_unregister(bl->device);
+
+ regulator_set_current(isink, 0);
+ regulator_disable(isink);
+ regulator_unregister_client(isink, &bl->notifier);
+ regulator_unregister_client(dcdc, &bl->notifier);
+ regulator_put(isink, &pdev->dev);
+ regulator_put(dcdc, &pdev->dev);
+ return 0;
+}
+
+struct platform_driver imx32ads_backlight_driver = {
+ .driver = {
+ .name = "wm8350-bl",
+ .owner = THIS_MODULE,
+ },
+ .probe = wm8350_bl_probe,
+ .remove = wm8350_bl_remove,
+ .suspend = wm8350_bl_suspend,
+ .resume = wm8350_bl_resume,
+};
+
+static int __devinit imx32ads_backlight_init(void)
+{
+ return platform_driver_register(&imx32ads_backlight_driver);
+}
+
+static void imx32ads_backlight_exit(void)
+{
+ platform_driver_unregister(&imx32ads_backlight_driver);
+}
+
+device_initcall_sync(imx32ads_backlight_init);
+module_exit(imx32ads_backlight_exit);
+
+MODULE_AUTHOR("Liam Girdwood <lg@opensource.wolfsonmicro.com>");
+MODULE_DESCRIPTION("WM8350 Backlight driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/mxc/Kconfig b/drivers/video/mxc/Kconfig
new file mode 100644
index 000000000000..aac30a530c55
--- /dev/null
+++ b/drivers/video/mxc/Kconfig
@@ -0,0 +1,82 @@
+config FB_MXC
+ tristate "MXC Framebuffer support"
+ depends on FB && (MXC_IPU || ARCH_MX21 || ARCH_MX27 || ARCH_MX25)
+ select FB_CFB_FILLRECT
+ select FB_CFB_COPYAREA
+ select FB_CFB_IMAGEBLIT
+ default y
+ help
+ This is a framebuffer device for the MXC LCD Controller.
+ See <http://www.linux-fbdev.org/> for information on framebuffer
+ devices.
+
+ If you plan to use the LCD display with your MXC system, say
+ Y here.
+
+config FB_MXC_SYNC_PANEL
+ depends on FB_MXC
+ tristate "Synchronous Panel Framebuffer"
+ default y
+
+config FB_MXC_EPSON_VGA_SYNC_PANEL
+ depends on FB_MXC_SYNC_PANEL
+ tristate "Epson VGA Panel"
+ default n
+
+config FB_MXC_TVOUT_TVE
+ tristate "MXC TVE TV Out Encoder"
+ depends on FB_MXC_SYNC_PANEL
+ depends on MXC_IPU_V3
+
+config FB_MXC_CLAA_WVGA_SYNC_PANEL
+ depends on FB_MXC_SYNC_PANEL
+ tristate "CLAA WVGA Panel"
+
+config FB_MXC_TVOUT
+ bool "FS453 TV Out Encoder"
+ depends on FB_MXC_SYNC_PANEL
+
+config FB_MXC_TVOUT_CH7024
+ tristate "CH7024 TV Out Encoder"
+ depends on FB_MXC_SYNC_PANEL
+
+config FB_MXC_LOW_PWR_DISPLAY
+ bool "Low Power Display Refresh Mode"
+ depends on FB_MXC_SYNC_PANEL && MXC_FB_IRAM
+ default y
+
+config FB_MXC_INTERNAL_MEM
+ bool "Framebuffer in Internal RAM"
+ depends on FB_MXC_SYNC_PANEL && MXC_FB_IRAM
+ default y
+
+config FB_MXC_ASYNC_PANEL
+ depends on FB_MXC
+ bool "Asynchronous Panels"
+ default n
+
+menu "Asynchronous Panel Type"
+ depends on FB_MXC_ASYNC_PANEL && FB_MXC
+
+config FB_MXC_EPSON_PANEL
+ depends on FB_MXC_ASYNC_PANEL
+ default n
+ bool "Epson 176x220 Panel"
+
+endmenu
+
+choice
+ prompt "Async Panel Interface Type"
+ depends on FB_MXC_ASYNC_PANEL && FB_MXC
+ default FB_MXC_ASYNC_PANEL_IFC_16_BIT
+
+config FB_MXC_ASYNC_PANEL_IFC_8_BIT
+ bool "8-bit Parallel Bus Interface"
+
+config FB_MXC_ASYNC_PANEL_IFC_16_BIT
+ bool "16-bit Parallel Bus Interface"
+
+config FB_MXC_ASYNC_PANEL_IFC_SERIAL
+ bool "Serial Bus Interface"
+
+endchoice
diff --git a/drivers/video/mxc/Makefile b/drivers/video/mxc/Makefile
new file mode 100644
index 000000000000..e432bb55b1be
--- /dev/null
+++ b/drivers/video/mxc/Makefile
@@ -0,0 +1,21 @@
+ifeq ($(CONFIG_ARCH_MX21)$(CONFIG_ARCH_MX27)$(CONFIG_ARCH_MX25),y)
+ obj-$(CONFIG_FB_MXC_TVOUT) += fs453.o
+ obj-$(CONFIG_FB_MXC_SYNC_PANEL) += mx2fb.o mxcfb_modedb.o
+ obj-$(CONFIG_FB_MXC_EPSON_PANEL) += mx2fb_epson.o
+else
+ifeq ($(CONFIG_MXC_IPU_V1),y)
+ obj-$(CONFIG_FB_MXC_SYNC_PANEL) += mxcfb.o mxcfb_modedb.o
+else
+ obj-$(CONFIG_FB_MXC_SYNC_PANEL) += mxc_ipuv3_fb.o
+endif
+ obj-$(CONFIG_FB_MXC_TVOUT) += fs453.o
+ obj-$(CONFIG_FB_MXC_EPSON_PANEL) += mxcfb_epson.o
+ obj-$(CONFIG_FB_MXC_EPSON_QVGA_PANEL) += mxcfb_epson_qvga.o
+ obj-$(CONFIG_FB_MXC_TOSHIBA_QVGA_PANEL) += mxcfb_toshiba_qvga.o
+ obj-$(CONFIG_FB_MXC_SHARP_128_PANEL) += mxcfb_sharp_128x128.o
+endif
+obj-$(CONFIG_FB_MXC_EPSON_VGA_SYNC_PANEL) += mxcfb_epson_vga.o
+obj-$(CONFIG_FB_MXC_CLAA_WVGA_SYNC_PANEL) += mxcfb_claa_wvga.o
+obj-$(CONFIG_FB_MXC_TVOUT_CH7024) += ch7024.o
+obj-$(CONFIG_FB_MXC_TVOUT_TVE) += tve.o
+
diff --git a/drivers/video/mxc/ch7024.c b/drivers/video/mxc/ch7024.c
new file mode 100644
index 000000000000..86b4b4216802
--- /dev/null
+++ b/drivers/video/mxc/ch7024.c
@@ -0,0 +1,864 @@
+/*
+ * Copyright 2007-2009 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/*!
+ * @file ch7024.c
+ * @brief Driver for CH7024 TV encoder
+ *
+ * @ingroup Framebuffer
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/ctype.h>
+#include <linux/delay.h>
+#include <linux/spinlock.h>
+#include <linux/i2c.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/sysfs.h>
+#include <linux/regulator/regulator.h>
+#include <asm/uaccess.h>
+#include <asm/atomic.h>
+#include <mach/gpio.h>
+#include <mach/mxcfb.h>
+#include <mach/hw_events.h>
+
+/*!
+ * CH7024 registers
+ */
+#define CH7024_DEVID 0x00
+#define CH7024_REVID 0x01
+#define CH7024_PG 0x02
+
+#define CH7024_RESET 0x03
+#define CH7024_POWER 0x04
+#define CH7024_TVHUE 0x05
+#define CH7024_TVSAT 0x06
+#define CH7024_TVCTA 0x07
+#define CH7024_TVBRI 0x08
+#define CH7024_TVSHARP 0x09
+#define CH7024_OUT_FMT 0x0A
+#define CH7024_XTAL 0x0B
+#define CH7024_IDF1 0x0C
+#define CH7024_IDF2 0x0D
+#define CH7024_SYNC 0x0E
+#define CH7024_TVFILTER1 0x0F
+#define CH7024_TVFILTER2 0x10
+#define CH7024_IN_TIMING1 0x11
+#define CH7024_IN_TIMING2 0x12
+#define CH7024_IN_TIMING3 0x13
+#define CH7024_IN_TIMING4 0x14
+#define CH7024_IN_TIMING5 0x15
+#define CH7024_IN_TIMING6 0x16
+#define CH7024_IN_TIMING7 0x17
+#define CH7024_IN_TIMING8 0x18
+#define CH7024_IN_TIMING9 0x19
+#define CH7024_IN_TIMING10 0x1A
+#define CH7024_IN_TIMING11 0x1B
+#define CH7024_ACIV 0x1C
+#define CH7024_OUT_TIMING1 0x1E
+#define CH7024_OUT_TIMING2 0x1F
+#define CH7024_V_POS1 0x20
+#define CH7024_V_POS2 0x21
+#define CH7024_H_POS1 0x22
+#define CH7024_H_POS2 0x23
+#define CH7024_PCLK_A1 0x24
+#define CH7024_PCLK_A2 0x25
+#define CH7024_PCLK_A3 0x26
+#define CH7024_PCLK_A4 0x27
+#define CH7024_CLK_P1 0x28
+#define CH7024_CLK_P2 0x29
+#define CH7024_CLK_P3 0x2A
+#define CH7024_CLK_N1 0x2B
+#define CH7024_CLK_N2 0x2C
+#define CH7024_CLK_N3 0x2D
+#define CH7024_CLK_T 0x2E
+#define CH7024_PLL1 0x2F
+#define CH7024_PLL2 0x30
+#define CH7024_PLL3 0x31
+#define CH7024_SC_FREQ1 0x34
+#define CH7024_SC_FREQ2 0x35
+#define CH7024_SC_FREQ3 0x36
+#define CH7024_SC_FREQ4 0x37
+#define CH7024_DAC_TRIM 0x62
+#define CH7024_DATA_IO 0x63
+#define CH7024_ATT_DISP 0x7E
+
+/*!
+ * CH7024 register values
+ */
+/* video output formats */
+#define CH7024_VOS_NTSC_M 0x0
+#define CH7024_VOS_NTSC_J 0x1
+#define CH7024_VOS_NTSC_443 0x2
+#define CH7024_VOS_PAL_BDGHKI 0x3
+#define CH7024_VOS_PAL_M 0x4
+#define CH7024_VOS_PAL_N 0x5
+#define CH7024_VOS_PAL_NC 0x6
+#define CH7024_VOS_PAL_60 0x7
+/* crystal predefined */
+#define CH7024_XTAL_13MHZ 0x4
+#define CH7024_XTAL_26MHZ 0xB
+
+/* chip ID */
+#define CH7024_DEVICE_ID 0x45
+
+/* clock source define */
+#define CLK_HIGH 0
+#define CLK_LOW 1
+
+/* CH7024 presets structs */
+struct ch7024_clock {
+ u32 A;
+ u32 P;
+ u32 N;
+ u32 T;
+ u8 PLLN1;
+ u8 PLLN2;
+ u8 PLLN3;
+};
+
+struct ch7024_input_timing {
+ u32 HTI;
+ u32 VTI;
+ u32 HAI;
+ u32 VAI;
+ u32 HW;
+ u32 HO;
+ u32 VW;
+ u32 VO;
+ u32 VOS;
+};
+
+#define TVOUT_FMT_OFF 0
+#define TVOUT_FMT_NTSC 1
+#define TVOUT_FMT_PAL 2
+
+static int enabled; /* enable power on or not */
+static int pm_status; /* status before suspend */
+
+static struct i2c_client *ch7024_client;
+static struct fb_info *ch7024_fbi;
+static int ch7024_cur_mode;
+static u32 detect_gpio;
+static struct regulator *io_reg;
+static struct regulator *core_reg;
+static struct regulator *analog_reg;
+
+static void hp_detect_wq_handler(struct work_struct *);
+DECLARE_DELAYED_WORK(ch7024_wq, hp_detect_wq_handler);
+
+static inline int ch7024_read_reg(u8 reg)
+{
+ return i2c_smbus_read_byte_data(ch7024_client, reg);
+}
+
+static inline int ch7024_write_reg(u8 reg, u8 word)
+{
+ return i2c_smbus_write_byte_data(ch7024_client, reg, word);
+}
+
+/**
+ * PAL B/D/G/H/K/I clock and timting structures
+ */
+static struct ch7024_clock ch7024_clk_pal = {
+ .A = 0x0,
+ .P = 0x36b00,
+ .N = 0x41eb00,
+ .T = 0x3f,
+ .PLLN1 = 0x0,
+ .PLLN2 = 0x1b,
+ .PLLN3 = 0x12,
+};
+
+static struct ch7024_input_timing ch7024_timing_pal = {
+ .HTI = 950,
+ .VTI = 560,
+ .HAI = 640,
+ .VAI = 480,
+ .HW = 60,
+ .HO = 250,
+ .VW = 40,
+ .VO = 40,
+ .VOS = CH7024_VOS_PAL_BDGHKI,
+};
+
+/**
+ * NTSC_M clock and timting structures
+ * TODO: change values to work well.
+ */
+static struct ch7024_clock ch7024_clk_ntsc = {
+ .A = 0x0,
+ .P = 0x2ac90,
+ .N = 0x36fc90,
+ .T = 0x3f,
+ .PLLN1 = 0x0,
+ .PLLN2 = 0x1b,
+ .PLLN3 = 0x12,
+};
+
+static struct ch7024_input_timing ch7024_timing_ntsc = {
+ .HTI = 801,
+ .VTI = 554,
+ .HAI = 640,
+ .VAI = 480,
+ .HW = 60,
+ .HO = 101,
+ .VW = 20,
+ .VO = 54,
+ .VOS = CH7024_VOS_NTSC_M,
+};
+
+static struct fb_videomode video_modes[] = {
+ {
+ /* NTSC TV output */
+ "TV-NTSC", 60, 640, 480, 37594,
+ 0, 101,
+ 0, 54,
+ 60, 20,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT | FB_SYNC_OE_ACT_HIGH,
+ FB_VMODE_NONINTERLACED,
+ 0,},
+ {
+ /* PAL TV output */
+ "TV-PAL", 50, 640, 480, 37594,
+ 0, 250,
+ 0, 40,
+ 60, 40,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT | FB_SYNC_OE_ACT_HIGH,
+ FB_VMODE_NONINTERLACED,
+ 0,},
+};
+
+/**
+ * ch7024_setup
+ * initial the CH7024 chipset by setting register
+ * @param:
+ * vos: output video format
+ * @return:
+ * 0 successful
+ * otherwise failed
+ */
+static int ch7024_setup(int vos)
+{
+ struct ch7024_input_timing *ch_timing;
+ struct ch7024_clock *ch_clk;
+#ifdef DEBUG_CH7024
+ int i, val;
+#endif
+
+ /* select output video format */
+ if (vos == TVOUT_FMT_PAL) {
+ ch_timing = &ch7024_timing_pal;
+ ch_clk = &ch7024_clk_pal;
+ pr_debug("CH7024: change to PAL video\n");
+ } else if (vos == TVOUT_FMT_NTSC) {
+ ch_timing = &ch7024_timing_ntsc;
+ ch_clk = &ch7024_clk_ntsc;
+ pr_debug("CH7024: change to NTSC video\n");
+ } else {
+
+ pr_debug("CH7024: no such video format.\n");
+ return -EINVAL;
+ }
+ ch7024_write_reg(CH7024_RESET, 0x0);
+ ch7024_write_reg(CH7024_RESET, 0x3);
+
+ ch7024_write_reg(CH7024_POWER, 0x0C); /* power on, disable DAC */
+ ch7024_write_reg(CH7024_XTAL, CH7024_XTAL_26MHZ);
+ ch7024_write_reg(CH7024_SYNC, 0x0D); /* SLAVE mode, and TTL */
+ ch7024_write_reg(CH7024_IDF1, 0x00);
+ ch7024_write_reg(CH7024_TVFILTER1, 0x00); /* set XCH=0 */
+
+ /* set input clock and divider */
+ /* set PLL */
+ ch7024_write_reg(CH7024_PLL1, ch_clk->PLLN1);
+ ch7024_write_reg(CH7024_PLL2, ch_clk->PLLN2);
+ ch7024_write_reg(CH7024_PLL3, ch_clk->PLLN3);
+ /* set A register */
+ ch7024_write_reg(CH7024_PCLK_A1, (ch_clk->A >> 24) & 0xFF);
+ ch7024_write_reg(CH7024_PCLK_A2, (ch_clk->A >> 16) & 0xFF);
+ ch7024_write_reg(CH7024_PCLK_A3, (ch_clk->A >> 8) & 0xFF);
+ ch7024_write_reg(CH7024_PCLK_A4, ch_clk->A & 0xFF);
+ /* set P register */
+ ch7024_write_reg(CH7024_CLK_P1, (ch_clk->P >> 16) & 0xFF);
+ ch7024_write_reg(CH7024_CLK_P2, (ch_clk->P >> 8) & 0xFF);
+ ch7024_write_reg(CH7024_CLK_P3, ch_clk->P & 0xFF);
+ /* set N register */
+ ch7024_write_reg(CH7024_CLK_N1, (ch_clk->N >> 16) & 0xFF);
+ ch7024_write_reg(CH7024_CLK_N2, (ch_clk->N >> 8) & 0xFF);
+ ch7024_write_reg(CH7024_CLK_N3, ch_clk->N & 0xFF);
+ /* set T register */
+ ch7024_write_reg(CH7024_CLK_T, ch_clk->T & 0xFF);
+
+ /* set sub-carrier frequency generation method */
+ ch7024_write_reg(CH7024_ACIV, 0x00); /* ACIV = 0, automatical SCF */
+ /* TV out pattern and DAC switch */
+ ch7024_write_reg(CH7024_OUT_FMT, (0x10 | ch_timing->VOS) & 0xFF);
+
+ /* input settings */
+ /* input format, RGB666 */
+ ch7024_write_reg(CH7024_IDF2, 0x02);
+ /* HAI/HTI VAI */
+ ch7024_write_reg(CH7024_IN_TIMING1, ((ch_timing->HTI >> 5) & 0x38) |
+ ((ch_timing->HAI >> 8) & 0x07));
+ ch7024_write_reg(CH7024_IN_TIMING2, ch_timing->HAI & 0xFF);
+ ch7024_write_reg(CH7024_IN_TIMING8, ch_timing->VAI & 0xFF);
+ /* HTI VTI */
+ ch7024_write_reg(CH7024_IN_TIMING3, ch_timing->HTI & 0xFF);
+ ch7024_write_reg(CH7024_IN_TIMING9, ch_timing->VTI & 0xFF);
+ /* HW/HO(h) VW */
+ ch7024_write_reg(CH7024_IN_TIMING4, ((ch_timing->HW >> 5) & 0x18) |
+ ((ch_timing->HO >> 8) & 0x7));
+ ch7024_write_reg(CH7024_IN_TIMING6, ch_timing->HW & 0xFF);
+ ch7024_write_reg(CH7024_IN_TIMING11, ch_timing->VW & 0x3F);
+ /* HO(l) VO/VAI/VTI */
+ ch7024_write_reg(CH7024_IN_TIMING5, ch_timing->HO & 0xFF);
+ ch7024_write_reg(CH7024_IN_TIMING7, ((ch_timing->VO >> 4) & 0x30) |
+ ((ch_timing->VTI >> 6) & 0x0C) |
+ ((ch_timing->VAI >> 8) & 0x03));
+ ch7024_write_reg(CH7024_IN_TIMING10, ch_timing->VO & 0xFF);
+
+ /* adjust the brightness */
+ ch7024_write_reg(CH7024_TVBRI, 0x90);
+
+ ch7024_write_reg(CH7024_OUT_TIMING1, 0x4);
+ ch7024_write_reg(CH7024_OUT_TIMING2, 0xe0);
+
+ if (vos == TVOUT_FMT_PAL) {
+ ch7024_write_reg(CH7024_V_POS1, 0x03);
+ ch7024_write_reg(CH7024_V_POS2, 0x7d);
+ } else {
+ ch7024_write_reg(CH7024_V_POS1, 0x02);
+ ch7024_write_reg(CH7024_V_POS2, 0x7b);
+ }
+
+ ch7024_write_reg(CH7024_POWER, 0x00);
+
+#ifdef DEBUG_CH7024
+ for (i = 0; i < CH7024_SC_FREQ4; i++) {
+
+ val = ch7024_read_reg(i);
+ pr_debug("CH7024, reg[0x%x] = %x\n", i, val);
+ }
+#endif
+ return 0;
+}
+
+/**
+ * ch7024_enable
+ * Enable the ch7024 Power to begin TV encoder
+ */
+static int ch7024_enable(void)
+{
+ int en = enabled;
+
+ if (!enabled) {
+ regulator_enable(core_reg);
+ regulator_enable(io_reg);
+ regulator_enable(analog_reg);
+ msleep(200);
+ enabled = 1;
+ ch7024_write_reg(CH7024_POWER, 0x00);
+ pr_debug("CH7024 power on.\n");
+ }
+ return en;
+}
+
+/**
+ * ch7024_disable
+ * Disable the ch7024 Power to stop TV encoder
+ */
+static void ch7024_disable(void)
+{
+ if (enabled) {
+ enabled = 0;
+ ch7024_write_reg(CH7024_POWER, 0x0D);
+ regulator_disable(analog_reg);
+ regulator_disable(io_reg);
+ regulator_disable(core_reg);
+ pr_debug("CH7024 power off.\n");
+ }
+}
+
+static int ch7024_detect(void)
+{
+ int en;
+ int detect = 0;
+
+ if (mxc_get_gpio_datain(detect_gpio) == 1) {
+ set_irq_type(ch7024_client->irq, IRQF_TRIGGER_FALLING);
+
+ en = ch7024_enable();
+
+ ch7024_write_reg(CH7024_DAC_TRIM, 0xB4);
+ msleep(50);
+ detect = ch7024_read_reg(CH7024_ATT_DISP) & 0x3;
+ ch7024_write_reg(CH7024_DAC_TRIM, 0x34);
+
+ if (!en)
+ ch7024_disable();
+ } else {
+ set_irq_type(ch7024_client->irq, IRQF_TRIGGER_RISING);
+ }
+ dev_dbg(&ch7024_client->dev, "detect = %d\n", detect);
+ return (detect);
+}
+
+static irqreturn_t hp_detect_handler(int irq, void *data)
+{
+ disable_irq(irq);
+ schedule_delayed_work(&ch7024_wq, 50);
+
+ return IRQ_HANDLED;
+}
+
+static void hp_detect_wq_handler(struct work_struct *work)
+{
+ int detect;
+ struct mxc_hw_event event = { HWE_PHONEJACK_PLUG, 0 };
+
+ detect = ch7024_detect();
+
+ enable_irq(ch7024_client->irq);
+
+ sysfs_notify(&ch7024_client->dev.kobj, NULL, "headphone");
+
+ /* send hw event by netlink */
+ event.args = detect;
+ hw_event_send(1, &event);
+}
+
+int ch7024_fb_event(struct notifier_block *nb, unsigned long val, void *v)
+{
+ struct fb_event *event = v;
+ struct fb_info *fbi = event->info;
+
+ switch (val) {
+ case FB_EVENT_FB_REGISTERED:
+ if ((ch7024_fbi != NULL) || strcmp(fbi->fix.id, "DISP3 BG"))
+ break;
+
+ ch7024_fbi = fbi;
+ fb_add_videomode(&video_modes[0], &ch7024_fbi->modelist);
+ fb_add_videomode(&video_modes[1], &ch7024_fbi->modelist);
+ break;
+ case FB_EVENT_MODE_CHANGE:
+ if (ch7024_fbi != fbi)
+ break;
+
+ if (!fbi->mode) {
+ ch7024_disable();
+ ch7024_cur_mode = TVOUT_FMT_OFF;
+ return 0;
+ }
+
+ if (fb_mode_is_equal(fbi->mode, &video_modes[0])) {
+ ch7024_cur_mode = TVOUT_FMT_NTSC;
+ ch7024_enable();
+ ch7024_setup(TVOUT_FMT_NTSC);
+ } else if (fb_mode_is_equal(fbi->mode, &video_modes[1])) {
+ ch7024_cur_mode = TVOUT_FMT_PAL;
+ ch7024_enable();
+ ch7024_setup(TVOUT_FMT_PAL);
+ } else {
+ ch7024_disable();
+ ch7024_cur_mode = TVOUT_FMT_OFF;
+ return 0;
+ }
+ break;
+ case FB_EVENT_BLANK:
+ if ((ch7024_fbi != fbi) || (ch7024_cur_mode == TVOUT_FMT_OFF))
+ return 0;
+
+ if (*((int *)event->data) == FB_BLANK_UNBLANK) {
+ ch7024_enable();
+ ch7024_setup(ch7024_cur_mode);
+ } else {
+ ch7024_disable();
+ }
+ break;
+ }
+ return 0;
+}
+
+static struct notifier_block nb = {
+ .notifier_call = ch7024_fb_event,
+};
+
+static ssize_t show_headphone(struct device_driver *dev, char *buf)
+{
+ int detect;
+
+ detect = ch7024_detect();
+
+ if (detect == 0) {
+ strcpy(buf, "none\n");
+ } else if (detect == 1) {
+ strcpy(buf, "cvbs\n");
+ } else {
+ strcpy(buf, "headset\n");
+ }
+
+ return strlen(buf);
+}
+
+DRIVER_ATTR(headphone, 0644, show_headphone, NULL);
+
+static ssize_t show_brightness(struct device_driver *dev, char *buf)
+{
+ u32 reg;
+ reg = ch7024_read_reg(CH7024_TVBRI);
+ return snprintf(buf, PAGE_SIZE, "%u", reg);
+}
+
+static ssize_t store_brightness(struct device_driver *dev, const char *buf,
+ size_t count)
+{
+ char *endp;
+ int brightness = simple_strtoul(buf, &endp, 0);
+ size_t size = endp - buf;
+
+ if (*endp && isspace(*endp))
+ size++;
+ if (size != count)
+ return -EINVAL;
+
+ if (brightness > 255)
+ brightness = 255;
+
+ ch7024_write_reg(CH7024_TVBRI, brightness);
+
+ return count;
+}
+
+DRIVER_ATTR(brightness, 0644, show_brightness, store_brightness);
+
+static ssize_t show_contrast(struct device_driver *dev, char *buf)
+{
+ u32 reg;
+ reg = ch7024_read_reg(CH7024_TVCTA);
+
+ reg *= 2; /* Scale to 0 - 255 */
+
+ return snprintf(buf, PAGE_SIZE, "%u", reg);
+}
+
+static ssize_t store_contrast(struct device_driver *dev, const char *buf,
+ size_t count)
+{
+ char *endp;
+ int contrast = simple_strtoul(buf, &endp, 0);
+ size_t size = endp - buf;
+
+ if (*endp && isspace(*endp))
+ size++;
+ if (size != count)
+ return -EINVAL;
+
+ contrast /= 2;
+ if (contrast > 127)
+ contrast = 127;
+
+ ch7024_write_reg(CH7024_TVCTA, contrast);
+
+ return count;
+}
+
+DRIVER_ATTR(contrast, 0644, show_contrast, store_contrast);
+
+static ssize_t show_hue(struct device_driver *dev, char *buf)
+{
+ u32 reg;
+ reg = ch7024_read_reg(CH7024_TVHUE);
+
+ reg *= 2; /* Scale to 0 - 255 */
+
+ return snprintf(buf, PAGE_SIZE, "%u", reg);
+}
+
+static ssize_t store_hue(struct device_driver *dev, const char *buf,
+ size_t count)
+{
+ char *endp;
+ int hue = simple_strtoul(buf, &endp, 0);
+ size_t size = endp - buf;
+
+ if (*endp && isspace(*endp))
+ size++;
+ if (size != count)
+ return -EINVAL;
+
+ hue /= 2;
+ if (hue > 127)
+ hue = 127;
+
+ ch7024_write_reg(CH7024_TVHUE, hue);
+
+ return count;
+}
+
+DRIVER_ATTR(hue, 0644, show_hue, store_hue);
+
+static ssize_t show_saturation(struct device_driver *dev, char *buf)
+{
+ u32 reg;
+ reg = ch7024_read_reg(CH7024_TVSAT);
+
+ reg *= 2; /* Scale to 0 - 255 */
+
+ return snprintf(buf, PAGE_SIZE, "%u", reg);
+}
+
+static ssize_t store_saturation(struct device_driver *dev, const char *buf,
+ size_t count)
+{
+ char *endp;
+ int saturation = simple_strtoul(buf, &endp, 0);
+ size_t size = endp - buf;
+
+ if (*endp && isspace(*endp))
+ size++;
+ if (size != count)
+ return -EINVAL;
+
+ saturation /= 2;
+ if (saturation > 127)
+ saturation = 127;
+
+ ch7024_write_reg(CH7024_TVSAT, saturation);
+
+ return count;
+}
+
+DRIVER_ATTR(saturation, 0644, show_saturation, store_saturation);
+
+static ssize_t show_sharpness(struct device_driver *dev, char *buf)
+{
+ u32 reg;
+ reg = ch7024_read_reg(CH7024_TVSHARP);
+
+ reg *= 32; /* Scale to 0 - 255 */
+
+ return snprintf(buf, PAGE_SIZE, "%u", reg);
+}
+
+static ssize_t store_sharpness(struct device_driver *dev, const char *buf,
+ size_t count)
+{
+ char *endp;
+ int sharpness = simple_strtoul(buf, &endp, 0);
+ size_t size = endp - buf;
+
+ if (*endp && isspace(*endp))
+ size++;
+ if (size != count)
+ return -EINVAL;
+
+ sharpness /= 32; /* Scale to 0 - 7 */
+ if (sharpness > 7)
+ sharpness = 7;
+
+ ch7024_write_reg(CH7024_TVSHARP, sharpness);
+
+ return count;
+}
+
+DRIVER_ATTR(sharpness, 0644, show_sharpness, store_sharpness);
+
+static int ch7024_probe(struct i2c_client *client, const struct i2c_device_id *dev_id)
+{
+ int ret, i;
+ u32 id;
+ u32 irqtype;
+ struct mxc_tvout_platform_data *plat_data = client->dev.platform_data;
+
+ ch7024_client = client;
+
+ io_reg = regulator_get(&client->dev, plat_data->io_reg);
+ core_reg = regulator_get(&client->dev, plat_data->core_reg);
+ analog_reg = regulator_get(&client->dev, plat_data->analog_reg);
+
+ regulator_enable(io_reg);
+ regulator_enable(core_reg);
+ regulator_enable(analog_reg);
+ msleep(200);
+
+ id = ch7024_read_reg(CH7024_DEVID);
+
+ regulator_disable(core_reg);
+ regulator_disable(io_reg);
+ regulator_disable(analog_reg);
+
+ if (id < 0 || id != CH7024_DEVICE_ID) {
+ printk(KERN_ERR
+ "ch7024: TV encoder not present: id = %x\n", id);
+ return -ENODEV;
+ }
+ printk(KERN_ERR "ch7024: TV encoder present: id = %x\n", id);
+
+ detect_gpio = plat_data->detect_line;
+
+ if (client->irq > 0) {
+ if (ch7024_detect() == 0)
+ irqtype = IRQF_TRIGGER_RISING;
+ else
+ irqtype = IRQF_TRIGGER_FALLING;
+
+ ret = request_irq(client->irq, hp_detect_handler, irqtype,
+ client->name, client);
+ if (ret < 0)
+ goto err0;
+
+ ret = driver_create_file(&client->driver->driver,
+ &driver_attr_headphone);
+ if (ret < 0)
+ goto err1;
+ }
+
+ ret = driver_create_file(&client->driver->driver,
+ &driver_attr_brightness);
+ if (ret)
+ goto err2;
+
+ ret = driver_create_file(&client->driver->driver,
+ &driver_attr_contrast);
+ if (ret)
+ goto err3;
+ ret = driver_create_file(&client->driver->driver, &driver_attr_hue);
+ if (ret)
+ goto err4;
+ ret = driver_create_file(&client->driver->driver,
+ &driver_attr_saturation);
+ if (ret)
+ goto err5;
+ ret = driver_create_file(&client->driver->driver,
+ &driver_attr_sharpness);
+ if (ret)
+ goto err6;
+
+ for (i = 0; i < num_registered_fb; i++) {
+ if (strcmp(registered_fb[i]->fix.id, "DISP3 BG") == 0) {
+ ch7024_fbi = registered_fb[i];
+ break;
+ }
+ }
+ if (ch7024_fbi != NULL) {
+ fb_add_videomode(&video_modes[0], &ch7024_fbi->modelist);
+ fb_add_videomode(&video_modes[1], &ch7024_fbi->modelist);
+ }
+ fb_register_client(&nb);
+
+ return 0;
+ err6:
+ driver_remove_file(&client->driver->driver, &driver_attr_saturation);
+ err5:
+ driver_remove_file(&client->driver->driver, &driver_attr_hue);
+ err4:
+ driver_remove_file(&client->driver->driver, &driver_attr_contrast);
+ err3:
+ driver_remove_file(&client->driver->driver, &driver_attr_brightness);
+ err2:
+ driver_remove_file(&client->driver->driver, &driver_attr_headphone);
+ err1:
+ free_irq(client->irq, client);
+ err0:
+ return ret;
+}
+
+static int ch7024_remove(struct i2c_client *client)
+{
+ free_irq(client->irq, client);
+
+ regulator_put(io_reg, &client->dev);
+ regulator_put(core_reg, &client->dev);
+ regulator_put(analog_reg, &client->dev);
+
+ driver_remove_file(&client->driver->driver, &driver_attr_headphone);
+ driver_remove_file(&client->driver->driver, &driver_attr_brightness);
+ driver_remove_file(&client->driver->driver, &driver_attr_contrast);
+ driver_remove_file(&client->driver->driver, &driver_attr_hue);
+ driver_remove_file(&client->driver->driver, &driver_attr_saturation);
+ driver_remove_file(&client->driver->driver, &driver_attr_sharpness);
+
+ fb_unregister_client(&nb);
+
+ ch7024_client = 0;
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+/*!
+ * PM suspend/resume routing
+ */
+static int ch7024_suspend(struct i2c_client *client, pm_message_t state)
+{
+ pr_debug("Ch7024 suspend routing..\n");
+ if (enabled) {
+ ch7024_disable();
+ pm_status = 1;
+ } else {
+ pm_status = 0;
+ }
+ return 0;
+}
+
+static int ch7024_resume(struct i2c_client *client)
+{
+ pr_debug("Ch7024 resume routing..\n");
+ if (pm_status) {
+ ch7024_enable();
+ ch7024_setup(ch7024_cur_mode);
+ }
+ return 0;
+}
+#else
+#define ch7024_suspend NULL
+#define ch7024_resume NULL
+#endif
+
+static const struct i2c_device_id ch7024_id[] = {
+ { "ch7024", 0 },
+ {},
+};
+MODULE_DEVICE_TABLE(i2c, ch7024_id);
+
+static struct i2c_driver ch7024_driver = {
+ .driver = {
+ .name = "ch7024",
+ },
+ .probe = ch7024_probe,
+ .remove = ch7024_remove,
+ .suspend = ch7024_suspend,
+ .resume = ch7024_resume,
+ .id_table = ch7024_id,
+};
+
+static int __init ch7024_init(void)
+{
+ return i2c_add_driver(&ch7024_driver);
+}
+
+static void __exit ch7024_exit(void)
+{
+ i2c_del_driver(&ch7024_driver);
+}
+
+module_init(ch7024_init);
+module_exit(ch7024_exit);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("CH7024 TV encoder driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/mxc/fs453.c b/drivers/video/mxc/fs453.c
new file mode 100644
index 000000000000..449675e83aef
--- /dev/null
+++ b/drivers/video/mxc/fs453.c
@@ -0,0 +1,494 @@
+/*
+ * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/*!
+ * @defgroup FS453 Focus FS453 TV Encoder Driver
+ */
+/*!
+ * @file fs453.c
+ * @brief Driver for FS453/4 TV encoder
+ *
+ * @ingroup FS453
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/i2c.h>
+#include <linux/ioctl.h>
+#include <linux/video_encoder.h>
+
+#include "fs453.h"
+
+/*
+ * FIXME: VGA mode is not defined by video_encoder.h
+ * while FS453 supports VGA output.
+ */
+#ifndef VIDEO_ENCODER_VGA
+#define VIDEO_ENCODER_VGA 32
+#endif
+
+/*!
+ * This stucture contains the status of FS453.
+ */
+struct fs453_data {
+ int norm;
+ int input;
+ int output;
+ int enable;
+};
+
+/*!
+ * This structure contains all the register values needed to program the
+ * TV encoder chip. This structure is instantiated and initialized for
+ * each supported output standard.
+ */
+struct fs453_presets {
+ u32 mode; /*! Video mode */
+ u16 qpr; /*! Quick Program Register */
+ u16 pwr_mgmt; /*! Power Management */
+ u16 iho; /*! Input Horizontal Offset */
+ u16 ivo; /*! Input Vertical Offset */
+ u16 ihw; /*! Input Horizontal Width */
+ u16 vsc; /*! Vertical Scaling Coefficient */
+ u16 hsc; /*! Horizontal Scaling Coefficient */
+ u16 bypass; /*! Bypass */
+ u16 misc; /*! Miscellaneous Bits Register */
+ u8 misc46; /*! Miscellaneous Bits Register 46 */
+ u8 misc47; /*! Miscellaneous Bits Register 47 */
+ u32 ncon; /*! Numerator of NCO Word */
+ u32 ncod; /*! Denominator of NCO Word */
+ u16 pllm; /*! PLL M and Pump Control */
+ u16 plln; /*! PLL N */
+ u16 pllpd; /*! PLL Post-Divider */
+ u16 vid_cntl0; /*! Video Control 0 */
+ u16 dac_cntl; /*! DAC Control */
+ u16 fifo_lat; /*! FIFO Latency */
+};
+
+static struct fs453_presets fs453_vga_presets = {
+ .mode = VIDEO_ENCODER_VGA,
+ .qpr = 0x9cb0,
+ .pwr_mgmt = 0x0408,
+ .misc = 0x0103,
+ .ncon = 0x00000000,
+ .ncod = 0x00000000,
+ .misc46 = 0xa9,
+ .misc47 = 0x00,
+ .pllm = 0x317f,
+ .plln = 0x008e,
+ .pllpd = 0x0202,
+ .vid_cntl0 = 0x4006,
+ .dac_cntl = 0x00e4,
+ .fifo_lat = 0x0082,
+};
+
+static struct fs453_presets fs453_ntsc_presets = {
+ .mode = VIDEO_ENCODER_NTSC,
+ .qpr = 0x9c48,
+ .pwr_mgmt = 0x0200,
+ .misc = 0x0103,
+ .ncon = 0x00000001,
+ .ncod = 0x00000001,
+ .misc46 = 0x01,
+ .misc47 = 0x00,
+ .pllm = 0x4000 | (296 - 17),
+ .plln = 30 - 1,
+ .pllpd = ((10 - 1) << 8) | (10 - 1),
+ .iho = 0,
+ .ivo = 40,
+ .ihw = 768,
+ .vsc = 789,
+ .hsc = 0x0000,
+ .bypass = 0x000a,
+ .vid_cntl0 = 0x0340,
+ .dac_cntl = 0x00e4,
+ .fifo_lat = 0x0082,
+};
+
+static struct fs453_presets fs453_pal_presets = {
+ .mode = VIDEO_ENCODER_PAL,
+ .qpr = 0x9c41,
+ .pwr_mgmt = 0x0200,
+ .misc = 0x0103,
+ .ncon = 0x00000001,
+ .ncod = 0x00000001,
+ .misc46 = 0x01,
+ .misc47 = 0x00,
+ .pllm = 0x4000 | (296 - 17),
+ .plln = 30 - 1,
+ .pllpd = ((10 - 1) << 8) | (10 - 1),
+ .iho = 0,
+ .ivo = 19,
+ .ihw = 768,
+ .vsc = 8200,
+ .hsc = 0x0000,
+ .bypass = 0x000a,
+ .vid_cntl0 = 0x0340,
+ .dac_cntl = 0x00e4,
+ .fifo_lat = 0x0082,
+};
+
+static int fs453_preset(struct i2c_client *client,
+ struct fs453_presets *presets);
+static int fs453_enable(struct i2c_client *client, int enable);
+
+static struct i2c_driver fs453_driver;
+/*
+ * FIXME: fs453_client will represent the first FS453 device found by
+ * the I2C subsystem, which means fs453_ioctl() always works on the
+ * first FS453 device.
+ */
+static struct i2c_client *fs453_client = 0;
+
+static int fs453_command(struct i2c_client *client, unsigned int cmd, void *arg)
+{
+ int val;
+ char *smode = 0;
+ struct video_encoder_capability *cap;
+ struct fs453_data *data = i2c_get_clientdata(client);
+ int ret = 0;
+
+ switch (cmd) {
+ case ENCODER_GET_CAPABILITIES:
+ cap = arg;
+ cap->flags =
+ VIDEO_ENCODER_PAL | VIDEO_ENCODER_NTSC | VIDEO_ENCODER_VGA;
+ cap->inputs = 1;
+ cap->outputs = 1;
+ break;
+ case ENCODER_SET_NORM:
+ val = *(int *)arg;
+ switch (val) {
+ case VIDEO_ENCODER_PAL:
+ ret = fs453_preset(client, &fs453_pal_presets);
+ smode = "PAL";
+ break;
+ case VIDEO_ENCODER_NTSC:
+ ret = fs453_preset(client, &fs453_ntsc_presets);
+ smode = "NTSC";
+ break;
+ case VIDEO_ENCODER_VGA:
+ ret = fs453_preset(client, &fs453_vga_presets);
+ smode = "VGA";
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+ if (!ret) {
+ data->norm = val;
+ data->enable = 1;
+ pr_debug("FS453: switched to %s\n", smode);
+ }
+ break;
+ case ENCODER_SET_INPUT:
+ val = *(int *)arg;
+ /* We have only one input */
+ if (val != 0)
+ return -EINVAL;
+ data->input = val;
+ break;
+ case ENCODER_SET_OUTPUT:
+ val = *(int *)arg;
+ /* We have only one output */
+ if (val != 0)
+ return -EINVAL;
+ data->output = val;
+ break;
+ case ENCODER_ENABLE_OUTPUT:
+ val = *(int *)arg;
+ if ((ret = fs453_enable(client, val)) == 0)
+ data->enable = val;
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ return ret;
+}
+
+static int i2c_fs453_detect_client(struct i2c_adapter *adapter, int address,
+ int kind)
+{
+ int chip_id;
+ struct i2c_client *client;
+ struct fs453_data *data;
+ const char *client_name = "FS453 I2C dev";
+
+ pr_debug("FS453: i2c-bus: %s; address: 0x%x\n", adapter->name, address);
+
+ /* Let's see whether this adapter can support what we need */
+ if (!i2c_check_functionality(adapter,
+ I2C_FUNC_SMBUS_WORD_DATA |
+ I2C_FUNC_SMBUS_BYTE_DATA)) {
+ pr_debug("FS453: SMBUS word/byte operations not permited.\n");
+ return 0;
+ }
+
+ client =
+ kmalloc(sizeof(struct i2c_client) + sizeof(struct fs453_data),
+ GFP_KERNEL);
+ if (!client)
+ return -ENOMEM;
+
+ data = (struct fs453_data *)(client + 1);
+ client->addr = address;
+ client->adapter = adapter;
+ client->driver = &fs453_driver;
+ client->flags = 0;
+
+ /*
+ * The generic detection, that is skipped if any force
+ * parameter was used.
+ */
+ if (kind < 0) {
+ chip_id = i2c_smbus_read_word_data(client, FS453_ID);
+ if (chip_id != FS453_CHIP_ID) {
+ pr_info("FS453: TV encoder not present\n");
+ kfree(client);
+ return 0;
+ } else
+ pr_info("FS453: TV encoder present, ID=0x%04X\n",
+ chip_id);
+ }
+ strcpy(client->name, client_name);
+
+ /* FS453 default status */
+ data->input = 0;
+ data->output = 0;
+ data->norm = 0;
+ data->enable = 0;
+ i2c_set_clientdata(client, data);
+
+ if (i2c_attach_client(client)) {
+ pr_debug("FS453: i2c_attach_client() failed.\n");
+ kfree(client);
+ } else if (fs453_client == 0)
+ fs453_client = client;
+
+ return 0;
+}
+
+static unsigned short normal_i2c[] = { FS453_I2C_ADDR, I2C_CLIENT_END };
+
+/* Magic definition of all other variables and things */
+I2C_CLIENT_INSMOD;
+
+static int i2c_fs453_attach(struct i2c_adapter *adap)
+{
+ return i2c_probe(adap, &addr_data, &i2c_fs453_detect_client);
+}
+
+static int i2c_fs453_detach(struct i2c_client *client)
+{
+ int err;
+
+ if ((err = i2c_detach_client(client))) {
+ pr_debug("FS453: i2c_detach_client() failed\n");
+ return err;
+ }
+
+ if (fs453_client == client)
+ fs453_client = 0;
+
+ kfree(client);
+ return 0;
+}
+
+static struct i2c_driver fs453_driver = {
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = "FS453 driver",
+ },
+ .attach_adapter = &i2c_fs453_attach,
+ .detach_client = &i2c_fs453_detach,
+ .command = fs453_command,
+};
+
+/*!
+ * @brief Function to read TV encoder registers on the i2c bus
+ * @param client I2C client structure
+ * @param reg The register number
+ * @param value Pointer to buffer to receive the read data
+ * @param len Number of 16-bit register words to read
+ * @return 0 on success, others on failure
+ */
+static int fs453_read(struct i2c_client *client, u8 reg, u32 * value, u32 len)
+{
+ if (len == 1)
+ *value = i2c_smbus_read_byte_data(client, reg);
+ else if (len == 2)
+ *value = i2c_smbus_read_word_data(client, reg);
+ else if (len == 4) {
+ *(u16 *) value = i2c_smbus_read_word_data(client, reg);
+ *((u16 *) value + 1) =
+ i2c_smbus_read_word_data(client, reg + 2);
+ } else
+ return -EINVAL;
+
+ return 0;
+}
+
+/*!
+ * @brief Function to write a TV encoder register on the i2c bus
+ * @param client I2C client structure
+ * @param reg The register number
+ * @param value The value to write
+ * @param len Number of words to write (must be 1)
+ * @return 0 on success, others on failure
+ */
+static int fs453_write(struct i2c_client *client, u8 reg, u32 value, u32 len)
+{
+ if (len == 1)
+ return i2c_smbus_write_byte_data(client, reg, (u8) value);
+ else if (len == 2)
+ return i2c_smbus_write_word_data(client, reg, (u16) value);
+ else if (len == 4)
+ return i2c_smbus_write_block_data(client, reg, len,
+ (u8 *) & value);
+ else
+ return -EINVAL;
+}
+
+/*!
+ * @brief Function to initialize the TV encoder
+ * @param client I2C client structure
+ * @param presets FS453 pre-defined register values
+ * @return 0 on success; ENODEV if the encoder wasn't found
+ */
+static int fs453_preset(struct i2c_client *client,
+ struct fs453_presets *presets)
+{
+ u32 data;
+
+ if (!client)
+ return -ENODEV;
+
+ /* set the clock level */
+ fs453_write(client, FS453_CR, CR_GCC_CK_LVL, 2);
+
+ /* soft reset the encoder */
+ fs453_read(client, FS453_CR, &data, 2);
+ fs453_write(client, FS453_CR, data | CR_SRESET, 2);
+ fs453_write(client, FS453_CR, data & ~CR_SRESET, 2);
+
+ fs453_write(client, FS453_BYPASS, presets->bypass, 2);
+
+ /* Write the QPR (Quick Programming Register). */
+ fs453_write(client, FS453_QPR, presets->qpr, 2);
+
+ if (presets->mode != VIDEO_ENCODER_VGA) {
+ /* set up the NCO and PLL */
+ fs453_write(client, FS453_NCON, presets->ncon, 4);
+ fs453_write(client, FS453_NCOD, presets->ncod, 4);
+ fs453_write(client, FS453_PLL_M_PUMP, presets->pllm, 2);
+ fs453_write(client, FS453_PLL_N, presets->plln, 2);
+ fs453_write(client, FS453_PLL_PDIV, presets->pllpd, 2);
+
+ /* latch the NCO and PLL settings */
+ fs453_read(client, FS453_CR, &data, 2);
+ fs453_write(client, FS453_CR, data | CR_NCO_EN, 2);
+ fs453_write(client, FS453_CR, data & ~CR_NCO_EN, 2);
+ }
+
+ /* customize */
+ fs453_write(client, FS453_PWR_MGNT, presets->pwr_mgmt, 2);
+
+ fs453_write(client, FS453_IHO, presets->iho, 2);
+ fs453_write(client, FS453_IVO, presets->ivo, 2);
+ fs453_write(client, FS453_IHW, presets->ihw, 2);
+ fs453_write(client, FS453_VSC, presets->vsc, 2);
+ fs453_write(client, FS453_HSC, presets->hsc, 2);
+
+ fs453_write(client, FS453_MISC, presets->misc, 2);
+
+ fs453_write(client, FS453_VID_CNTL0, presets->vid_cntl0, 2);
+ fs453_write(client, FS453_MISC_46, presets->misc46, 1);
+ fs453_write(client, FS453_MISC_47, presets->misc47, 1);
+
+ fs453_write(client, FS453_DAC_CNTL, presets->dac_cntl, 2);
+ fs453_write(client, FS453_FIFO_LAT, presets->fifo_lat, 2);
+
+ return 0;
+}
+
+/*!
+ * @brief Function to enable/disable the TV encoder
+ * @param client I2C client structure
+ * @param enable 0 to disable, others to enable
+ * @return 0 on success; ENODEV if the encoder wasn't found
+ */
+static int fs453_enable(struct i2c_client *client, int enable)
+{
+ struct fs453_data *data;
+
+ if (!client)
+ return -ENODEV;
+
+ data = i2c_get_clientdata(client);
+
+ if (enable)
+ return fs453_command(client, ENCODER_SET_NORM, &data->norm);
+ else
+ return fs453_write(client, FS453_PWR_MGNT, 0x3BFF, 2);
+}
+
+/*!
+ * @brief FS453 control routine
+ * @param cmd Control command
+ * @param arg Control argument
+ * @return 0 on success, others on failure
+ */
+int fs453_ioctl(unsigned int cmd, void *arg)
+{
+ if (!fs453_client)
+ return -ENODEV;
+
+ return fs453_command(fs453_client, cmd, arg);
+}
+
+/*!
+ * @brief Probe for the TV enocder and initialize the driver
+ * @return 0 on success, others on failure
+ */
+static int __init fs453_init(void)
+{
+ int err;
+
+ pr_info("FS453/4 driver, (c) 2005 Freescale Semiconductor, Inc.\n");
+
+ if ((err = i2c_add_driver(&fs453_driver))) {
+ pr_info("FS453: driver registration failed\n");
+ return err;
+ }
+
+ return 0;
+}
+
+/*!
+ * @brief Module exit routine
+ */
+static void __exit fs453_exit(void)
+{
+ i2c_del_driver(&fs453_driver);
+}
+
+module_init(fs453_init);
+module_exit(fs453_exit);
+
+EXPORT_SYMBOL(fs453_ioctl);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("FS453/4 TV encoder driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/mxc/fs453.h b/drivers/video/mxc/fs453.h
new file mode 100644
index 000000000000..1edd11481b76
--- /dev/null
+++ b/drivers/video/mxc/fs453.h
@@ -0,0 +1,134 @@
+/*
+ * Copyright 2005-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+ /*!
+ * @file fs453.h
+ * @brief Driver for FS453/4 TV encoder
+ *
+ * @ingroup FS453
+ */
+
+#ifndef __FS453_H__
+#define __FS453_H__
+
+/* I2C address of the FS453 chip */
+
+#define I2C1_BUS 0
+#define FS453_I2C_ADDR 0x6A
+
+/*!
+ *
+ * FS453 register file
+ *
+ */
+#define FS453_IHO 0x00 /*! Input Horizontal Offset */
+#define FS453_IVO 0x02 /*! Input Vertical Offset */
+#define FS453_IHW 0x04 /*! Input Horizontal Width */
+#define FS453_VSC 0x06 /*! Vertical Scaling Coefficient */
+#define FS453_HSC 0x08 /*! Horizontal Scaling Coefficient */
+#define FS453_BYPASS 0x0A /*! BYPASS */
+#define FS453_CR 0x0C /*! Command Register */
+#define FS453_MISC 0x0E /*! Miscellaneous Bits Register */
+#define FS453_NCON 0x10 /*! Numerator of NCO Word */
+#define FS453_NCOD 0x14 /*! Denominator of NCO Word */
+#define FS453_PLL_M_PUMP 0x18 /*! PLL M and Pump Control */
+#define FS453_PLL_N 0x1A /*! PLL N */
+#define FS453_PLL_PDIV 0x1C /*! PLL Post-Divider */
+#define FS453_SHP 0x24 /*! Sharpness Filter */
+#define FS453_FLK 0x26 /*! Filcker Filter Coefficient */
+#define FS453_GPIO 0x28 /*! General Purpose I/O, Output Enab */
+#define FS453_ID 0x32 /*! Part Identification Number */
+#define FS453_STATUS 0x34 /*! Status Port */
+#define FS453_FIFO_SP 0x36 /*! FIFO Status Port Fill/Underrun */
+#define FS453_FIFO_LAT 0x38 /*! FIFO Latency */
+#define FS453_CHR_FREQ 0x40 /*! Chroma Subcarrier Frequency */
+#define FS453_CHR_PHASE 0x44 /*! Chroma Phase */
+#define FS453_MISC_45 0x45 /*! Miscellaneous Bits Register 45 */
+#define FS453_MISC_46 0x46 /*! Miscellaneous Bits Register 46 */
+#define FS453_MISC_47 0x47 /*! Miscellaneous Bits Register 47 */
+#define FS453_HSYNC_WID 0x48 /*! HSync Width */
+#define FS453_BURST_WID 0x49 /*! Burst Width */
+#define FS453_BPORCH 0x4A /*! Back Porch Width */
+#define FS453_CB_BURST 0x4B /*! Cb Burst Amplitude */
+#define FS453_CR_BURST 0x4C /*! Cr Burst Amplitude */
+#define FS453_MISC_4D 0x4D /*! Miscellaneous Bits Register 4D */
+#define FS453_BLACK_LVL 0x4E /*! Black Level */
+#define FS453_BLANK_LVL 0x50 /*! Blank Level */
+#define FS453_NUM_LINES 0x57 /*! Number of Lines */
+#define FS453_WHITE_LVL 0x5E /*! White Level */
+#define FS453_CB_GAIN 0x60 /*! Cb Color Saturation */
+#define FS453_CR_GAIN 0x62 /*! Cr Color Saturation */
+#define FS453_TINT 0x65 /*! Tint */
+#define FS453_BR_WAY 0x69 /*! Width of Breezeway */
+#define FS453_FR_PORCH 0x6C /*! Front Porch */
+#define FS453_NUM_PIXELS 0x71 /*! Total num. of luma/chroma Pixels */
+#define FS453_1ST_LINE 0x73 /*! First Video Line */
+#define FS453_MISC_74 0x74 /*! Miscellaneous Bits Register 74 */
+#define FS453_SYNC_LVL 0x75 /*! Sync Level */
+#define FS453_VBI_BL_LVL 0x7C /*! VBI Blank Level */
+#define FS453_SOFT_RST 0x7E /*! Encoder Soft Reset */
+#define FS453_ENC_VER 0x7F /*! Encoder Version */
+#define FS453_WSS_CONFIG 0x80 /*! WSS Configuration Register */
+#define FS453_WSS_CLK 0x81 /*! WSS Clock */
+#define FS453_WSS_DATAF1 0x83 /*! WSS Data Field 1 */
+#define FS453_WSS_DATAF0 0x86 /*! WSS Data Field 0 */
+#define FS453_WSS_LNF1 0x89 /*! WSS Line Number Field 1 */
+#define FS453_WSS_LNF0 0x8A /*! WSS Line Number Field 0 */
+#define FS453_WSS_LVL 0x8B /*! WSS Level */
+#define FS453_MISC_8D 0x8D /*! Miscellaneous Bits Register 8D */
+#define FS453_VID_CNTL0 0x92 /*! Video Control 0 */
+#define FS453_HD_FP_SYNC 0x94 /*! Horiz. Front Porch & HSync Width */
+#define FS453_HD_YOFF_BP 0x96 /*! HDTV Lum. Offset & Back Porch */
+#define FS453_SYNC_DL 0x98 /*! Sync Delay Value */
+#define FS453_LD_DET 0x9C /*! DAC Load Detect */
+#define FS453_DAC_CNTL 0x9E /*! DAC Control */
+#define FS453_PWR_MGNT 0xA0 /*! Power Management */
+#define FS453_RED_MTX 0xA2 /*! RGB to YCrCb Matrix Red Coeff. */
+#define FS453_GRN_MTX 0xA4 /*! RGB to YCrCb Matrix Green Coeff. */
+#define FS453_BLU_MTX 0xA6 /*! RGB to YCrCb Matrix Blue Coeff. */
+#define FS453_RED_SCL 0xA8 /*! RGB to YCrCb Scaling Red Coeff. */
+#define FS453_GRN_SCL 0xAA /*! RGB to YCrCb Scaling Green Coeff. */
+#define FS453_BLU_SCL 0xAC /*! RGB to YCrCb Scaling Blue Coeff. */
+#define FS453_CC_FIELD_1 0xAE /*! Closed Caption Field 1 Data */
+#define FS453_CC_FIELD_2 0xB0 /*! Closed Caption Field 2 Data */
+#define FS453_CC_CONTROL 0xB2 /*! Closed Caption Control */
+#define FS453_CC_BLANK_VALUE 0xB4 /*! Closed Caption Blanking Value */
+#define FS453_CC_BLANK_SAMPLE 0xB6 /*! Closed Caption Blanking Sample */
+#define FS453_HACT_ST 0xB8 /*! HDTV Horizontal Active Start */
+#define FS453_HACT_WD 0xBA /*! HDTV Horizontal Active Width */
+#define FS453_VACT_ST 0xBC /*! HDTV Veritical Active Width */
+#define FS453_VACT_HT 0xBE /*! HDTV Veritical Active Height */
+#define FS453_PR_PB_SCALING 0xC0 /*! Pr and Pb Relative Scaling */
+#define FS453_LUMA_BANDWIDTH 0xC2 /*! Luminance Frequency Response */
+#define FS453_QPR 0xC4 /*! Quick Program Register */
+
+/*! Command register bits */
+
+#define CR_GCC_CK_LVL 0x2000 /*! Graphics Controller switching lev */
+#define CR_P656_LVL 0x1000 /*! Pixel Port Output switching level */
+#define CR_P656_IN 0x0800 /*! Pixel Port In */
+#define CR_P656_OUT 0x0400 /*! Pixel Port Out */
+#define CR_CBAR_480P 0x0200 /*! 480P Color Bars */
+#define CR_PAL_NTSCIN 0x0100 /*! PAL or NTSC input */
+#define CR_SYNC_MS 0x0080 /*! Sync Master or Slave */
+#define CR_FIFO_CLR 0x0040 /*! FIFO Clear */
+#define CR_CACQ_CLR 0x0020 /*! CACQ Clear */
+#define CR_CDEC_BP 0x0010 /*! Chroma Decimator Bypass */
+#define CR_NCO_EN 0x0002 /*! Enable NCO Latch */
+#define CR_SRESET 0x0001 /*! Soft Reset */
+
+/*! Chip ID register bits */
+
+#define FS453_CHIP_ID 0xFE05 /*! Chip ID register expected value */
+
+#endif /* __FS453_H__ */
diff --git a/drivers/video/mxc/mx2fb.c b/drivers/video/mxc/mx2fb.c
new file mode 100644
index 000000000000..35e7e96db718
--- /dev/null
+++ b/drivers/video/mxc/mx2fb.c
@@ -0,0 +1,1347 @@
+/*
+ * Copyright 2004-2009 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/*!
+ * @defgroup Framebuffer_MX27 Framebuffer Driver for MX27.
+ */
+
+/*!
+ * @file mx2fb.c
+ *
+ * @brief Frame buffer driver for MX27 ADS.
+ *
+ * @ingroup Framebuffer_MX27
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/slab.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/dma-mapping.h>
+#include <linux/platform_device.h>
+#include <linux/interrupt.h>
+#include <linux/clk.h>
+#include <linux/mxcfb.h>
+#include <asm/uaccess.h>
+
+#include "mx2fb.h"
+
+#define MX2FB_TYPE_BG 0
+#define MX2FB_TYPE_GW 1
+
+extern void gpio_lcdc_active(void);
+extern void gpio_lcdc_inactive(void);
+extern void board_power_lcd(int on);
+
+static char *fb_mode = 0;
+static int fb_enabled = 0;
+static unsigned long default_bpp = 16;
+static ATOMIC_NOTIFIER_HEAD(mx2fb_notifier_list);
+static struct clk *lcdc_clk;
+/*!
+ * @brief Structure containing the MX2 specific framebuffer information.
+ */
+struct mx2fb_info {
+ int type;
+ char *id;
+ int registered;
+ int blank;
+ unsigned long pseudo_palette[16];
+};
+
+/* Framebuffer APIs */
+static int mx2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info);
+static int mx2fb_set_par(struct fb_info *info);
+static int mx2fb_setcolreg(unsigned regno, unsigned red, unsigned green,
+ unsigned blue, unsigned transp,
+ struct fb_info *info);
+static int mx2fb_pan_display(struct fb_var_screeninfo *var,
+ struct fb_info *info);
+static int mx2fb_blank(int blank_mode, struct fb_info *info);
+static int mx2fb_ioctl(struct fb_info *info, unsigned int cmd,
+ unsigned long arg);
+
+/* Driver entries */
+int __init mx2fb_init(void);
+void __exit mx2fb_exit(void);
+#ifndef MODULE
+static int __init mx2fb_setup(char *);
+#endif
+
+/* Internal functions */
+static int __init _init_fbinfo(struct fb_info *info,
+ struct platform_device *pdev);
+static int __init _install_fb(struct fb_info *info,
+ struct platform_device *pdev);
+static void __exit _uninstall_fb(struct fb_info *info);
+static int _map_video_memory(struct fb_info *info);
+static void _unmap_video_memory(struct fb_info *info);
+static void _set_fix(struct fb_info *info);
+static void _enable_lcdc(struct fb_info *info);
+static void _disable_lcdc(struct fb_info *info);
+static void _enable_graphic_window(struct fb_info *info);
+static void _disable_graphic_window(struct fb_info *info);
+static void _update_lcdc(struct fb_info *info);
+static void _request_irq(void);
+static void _free_irq(void);
+
+#ifdef CONFIG_PM
+static int mx2fb_suspend(struct platform_device *pdev, pm_message_t state);
+static int mx2fb_resume(struct platform_device *pdev);
+#else
+#define mx2fb_suspend 0
+#define mx2fb_resume 0
+#endif
+
+static int mx2fb_probe(struct platform_device *pdev);
+
+#ifdef CONFIG_FB_MXC_TVOUT
+#include <linux/video_encoder.h>
+/*
+ * FIXME: VGA mode is not defined by video_encoder.h
+ * while FS453 supports VGA output.
+ */
+#ifndef VIDEO_ENCODER_VGA
+#define VIDEO_ENCODER_VGA 32
+#endif
+
+#define MODE_PAL "TV-PAL"
+#define MODE_NTSC "TV-NTSC"
+#define MODE_VGA "TV-VGA"
+
+extern int fs453_ioctl(unsigned int cmd, void *arg);
+#endif
+
+struct mx2fb_info mx2fbi_bg = {
+ .type = MX2FB_TYPE_BG,
+ .id = "DISP0 BG",
+ .registered = 0,
+};
+
+static struct mx2fb_info mx2fbi_gw = {
+ .type = MX2FB_TYPE_GW,
+ .id = "DISP0 FG",
+ .registered = 0,
+};
+
+/*! Current graphic window information */
+static struct fb_gwinfo g_gwinfo = {
+ .enabled = 0,
+ .alpha_value = 255,
+ .ck_enabled = 0,
+ .ck_red = 0,
+ .ck_green = 0,
+ .ck_blue = 0,
+ .xpos = 0,
+ .ypos = 0,
+};
+
+/*!
+ * @brief Framebuffer information structures.
+ * There are up to 3 framebuffers: background, TVout, and graphic window.
+ * If graphic window is configured, it must be the last framebuffer.
+ */
+static struct fb_info mx2fb_info[] = {
+ {.par = &mx2fbi_bg},
+ {.par = &mx2fbi_gw},
+};
+
+/*!
+ * @brief This structure contains pointers to the power management
+ * callback functions.
+ */
+static struct platform_driver mx2fb_driver = {
+ .driver = {
+ .name = "mxc_sdc_fb",
+ .owner = THIS_MODULE,
+ .bus = &platform_bus_type,
+ },
+ .probe = mx2fb_probe,
+ .suspend = mx2fb_suspend,
+ .resume = mx2fb_resume,
+};
+
+/*!
+ * @brief Framebuffer file operations
+ */
+static struct fb_ops mx2fb_ops = {
+ .owner = THIS_MODULE,
+ .fb_check_var = mx2fb_check_var,
+ .fb_set_par = mx2fb_set_par,
+ .fb_setcolreg = mx2fb_setcolreg,
+ .fb_blank = mx2fb_blank,
+ .fb_pan_display = mx2fb_pan_display,
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+ //.fb_cursor = soft_cursor,
+ .fb_ioctl = mx2fb_ioctl,
+};
+
+/*!
+ * @brief Validates a var passed in.
+ *
+ * @param var Frame buffer variable screen structure
+ * @param info Frame buffer structure that represents a single frame buffer
+ *
+ * @return Negative errno on error, or zero on success.
+ *
+ * Checks to see if the hardware supports the state requested by var passed
+ * in. This function does not alter the hardware state! If the var passed in
+ * is slightly off by what the hardware can support then we alter the var
+ * PASSED in to what we can do. If the hardware doesn't support mode change
+ * a -EINVAL will be returned by the upper layers.
+ *
+ */
+static int mx2fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
+{
+ unsigned long htotal, vtotal;
+
+ if (var->xres_virtual < var->xres)
+ var->xres_virtual = var->xres;
+ if (var->yres_virtual < var->yres)
+ var->yres_virtual = var->yres;
+
+ if (var->xoffset < 0)
+ var->xoffset = 0;
+
+ if (var->yoffset < 0)
+ var->yoffset = 0;
+
+ if (var->xoffset + info->var.xres > info->var.xres_virtual)
+ var->xoffset = info->var.xres_virtual - info->var.xres;
+
+ if (var->yoffset + info->var.yres > info->var.yres_virtual)
+ var->yoffset = info->var.yres_virtual - info->var.yres;
+
+ if ((var->bits_per_pixel != 32) && (var->bits_per_pixel != 24) &&
+ (var->bits_per_pixel != 16)) {
+ var->bits_per_pixel = default_bpp;
+ }
+
+ switch (var->bits_per_pixel) {
+ case 16:
+ var->red.length = 5;
+ var->red.offset = 11;
+ var->red.msb_right = 0;
+
+ var->green.length = 6;
+ var->green.offset = 5;
+ var->green.msb_right = 0;
+
+ var->blue.length = 5;
+ var->blue.offset = 0;
+ var->blue.msb_right = 0;
+
+ var->transp.length = 0;
+ var->transp.offset = 0;
+ var->transp.msb_right = 0;
+ break;
+ case 24:
+ var->red.length = 8;
+ var->red.offset = 16;
+ var->red.msb_right = 0;
+
+ var->green.length = 8;
+ var->green.offset = 8;
+ var->green.msb_right = 0;
+
+ var->blue.length = 8;
+ var->blue.offset = 0;
+ var->blue.msb_right = 0;
+
+ var->transp.length = 0;
+ var->transp.offset = 0;
+ var->transp.msb_right = 0;
+ break;
+ case 32:
+ var->red.length = 8;
+ var->red.offset = 16;
+ var->red.msb_right = 0;
+
+ var->green.length = 8;
+ var->green.offset = 8;
+ var->green.msb_right = 0;
+
+ var->blue.length = 8;
+ var->blue.offset = 0;
+ var->blue.msb_right = 0;
+
+ var->transp.length = 8;
+ var->transp.offset = 24;
+ var->transp.msb_right = 0;
+ break;
+ }
+
+ if (var->pixclock < 1000) {
+ htotal = var->xres + var->right_margin + var->hsync_len +
+ var->left_margin;
+ vtotal = var->yres + var->lower_margin + var->vsync_len +
+ var->upper_margin;
+ var->pixclock = (vtotal * htotal * 6UL) / 100UL;
+ var->pixclock = KHZ2PICOS(var->pixclock);
+ dev_dbg(info->device,
+ "pixclock set for 60Hz refresh = %u ps\n",
+ var->pixclock);
+ }
+
+ var->height = -1;
+ var->width = -1;
+ var->grayscale = 0;
+
+ /* Copy nonstd field to/from sync for fbset usage */
+ var->sync |= var->nonstd;
+ var->nonstd |= var->sync;
+
+ return 0;
+}
+
+/*!
+ * @brief Alters the hardware state.
+ *
+ * @param info Frame buffer structure that represents a single frame buffer
+ *
+ * @return Zero on success others on failure
+ *
+ * Using the fb_var_screeninfo in fb_info we set the resolution of this
+ * particular framebuffer. This function alters the fb_fix_screeninfo stored
+ * in fb_info. It doesn't not alter var in fb_info since we are using that
+ * data. This means we depend on the data in var inside fb_info to be
+ * supported by the hardware. mx2fb_check_var is always called before
+ * mx2fb_set_par to ensure this.
+ */
+static int mx2fb_set_par(struct fb_info *info)
+{
+ unsigned long len;
+ struct mx2fb_info *mx2fbi = (struct mx2fb_info *)info->par;
+
+ _set_fix(info);
+
+ len = info->var.yres_virtual * info->fix.line_length;
+ if (len > info->fix.smem_len) {
+ if (info->fix.smem_start)
+ _unmap_video_memory(info);
+
+ /* Memory allocation for framebuffer */
+ if (_map_video_memory(info)) {
+ dev_err(info->device, "Unable to allocate fb memory\n");
+ return -ENOMEM;
+ }
+ }
+
+ _update_lcdc(info);
+ if (info->fbops->fb_blank)
+ info->fbops->fb_blank(mx2fbi->blank, info);
+
+ return 0;
+}
+
+/*!
+ * @brief Sets a color register.
+ *
+ * @param regno Which register in the CLUT we are programming
+ * @param red The red value which can be up to 16 bits wide
+ * @param green The green value which can be up to 16 bits wide
+ * @param blue The blue value which can be up to 16 bits wide.
+ * @param transp If supported the alpha value which can be up to
+ * 16 bits wide.
+ * @param info Frame buffer info structure
+ *
+ * @return Negative errno on error, or zero on success.
+ *
+ * Set a single color register. The values supplied have a 16 bit magnitude
+ * which needs to be scaled in this function for the hardware. Things to take
+ * into consideration are how many color registers, if any, are supported with
+ * the current color visual. With truecolor mode no color palettes are
+ * supported. Here a psuedo palette is created which we store the value in
+ * pseudo_palette in struct fb_info. For pseudocolor mode we have a limited
+ * color palette.
+ */
+static int mx2fb_setcolreg(unsigned regno, unsigned red, unsigned green,
+ unsigned blue, unsigned transp, struct fb_info *info)
+{
+ int ret = 1;
+
+ /*
+ * If greyscale is true, then we convert the RGB value
+ * to greyscale no matter what visual we are using.
+ */
+ if (info->var.grayscale)
+ red = green = blue = (19595 * red + 38470 * green +
+ 7471 * blue) >> 16;
+ switch (info->fix.visual) {
+ case FB_VISUAL_TRUECOLOR:
+ /*
+ * 16-bit True Colour. We encode the RGB value
+ * according to the RGB bitfield information.
+ */
+ if (regno < 16) {
+ u32 *pal = info->pseudo_palette;
+ u32 v;
+
+#define CNVT_TOHW(val,width) ((((val)<<(width))+0x7FFF-(val))>>16)
+ red = CNVT_TOHW(red, info->var.red.length);
+ green = CNVT_TOHW(green, info->var.green.length);
+ blue = CNVT_TOHW(blue, info->var.blue.length);
+ transp = CNVT_TOHW(transp, info->var.transp.length);
+#undef CNVT_TOHW
+
+ v = (red << info->var.red.offset) |
+ (green << info->var.green.offset) |
+ (blue << info->var.blue.offset) |
+ (transp << info->var.transp.offset);
+
+ pal[regno] = v;
+ ret = 0;
+ }
+ break;
+ case FB_VISUAL_STATIC_PSEUDOCOLOR:
+ case FB_VISUAL_PSEUDOCOLOR:
+ break;
+ }
+
+ return ret;
+}
+
+/*!
+ * @brief Pans the display.
+ *
+ * @param var Frame buffer variable screen structure
+ * @param info Frame buffer structure that represents a single frame buffer
+ *
+ * @return Negative errno on error, or zero on success.
+ *
+ * Pan (or wrap, depending on the `vmode' field) the display using the
+ * 'xoffset' and 'yoffset' fields of the 'var' structure. If the values
+ * don't fit, return -EINVAL.
+ */
+static int mx2fb_pan_display(struct fb_var_screeninfo *var,
+ struct fb_info *info)
+{
+ if ((info->var.xoffset == var->xoffset) &&
+ (info->var.yoffset == var->yoffset)) {
+ return 0; /* No change, do nothing */
+ }
+
+ if (var->xoffset < 0 || var->yoffset < 0
+ || var->xoffset + info->var.xres > info->var.xres_virtual
+ || var->yoffset + info->var.yres > info->var.yres_virtual)
+ return -EINVAL;
+
+ info->var.xoffset = var->xoffset;
+ info->var.yoffset = var->yoffset;
+
+ _update_lcdc(info);
+
+ if (var->vmode & FB_VMODE_YWRAP) {
+ info->var.vmode |= FB_VMODE_YWRAP;
+ } else {
+ info->var.vmode &= ~FB_VMODE_YWRAP;
+ }
+
+ return 0;
+}
+
+/*!
+ * @brief Blanks the display.
+ *
+ * @param blank_mode The blank mode we want.
+ * @param info Frame buffer structure that represents a single frame buffer
+ *
+ * @return Negative errno on error, or zero on success.
+ *
+ * Blank the screen if blank_mode != 0, else unblank. Return 0 if blanking
+ * succeeded, != 0 if un-/blanking failed.
+ * blank_mode == 2: suspend vsync
+ * blank_mode == 3: suspend hsync
+ * blank_mode == 4: powerdown
+ */
+static int mx2fb_blank(int blank_mode, struct fb_info *info)
+{
+ struct mx2fb_info *mx2fbi = (struct mx2fb_info *)info->par;
+
+ dev_dbg(info->device, "blank mode = %d\n", blank_mode);
+
+ mx2fbi->blank = blank_mode;
+
+ switch (blank_mode) {
+ case FB_BLANK_POWERDOWN:
+ case FB_BLANK_VSYNC_SUSPEND:
+ case FB_BLANK_HSYNC_SUSPEND:
+ case FB_BLANK_NORMAL:
+ _disable_lcdc(info);
+ break;
+ case FB_BLANK_UNBLANK:
+ _enable_lcdc(info);
+ break;
+ }
+
+ return 0;
+}
+
+/*!
+ * @brief Ioctl function to support customized ioctl operations.
+ *
+ * @param info Framebuffer structure that represents a single frame buffer
+ * @param cmd The command number
+ * @param arg Argument which depends on cmd
+ *
+ * @return Negative errno on error, or zero on success.
+ */
+static int mx2fb_ioctl(struct fb_info *info, unsigned int cmd,
+ unsigned long arg)
+{
+ struct mx2fb_info *mx2fbi = (struct mx2fb_info *)info->par;
+ struct mx2fb_gbl_alpha ga;
+ struct mx2fb_color_key ck;
+
+ switch (cmd) {
+ case MX2FB_SET_GBL_ALPHA:
+ if (mx2fbi->type != MX2FB_TYPE_GW)
+ return -ENODEV;
+
+ if (!arg)
+ return -EINVAL;
+
+ /* set graphic window information */
+ if (copy_from_user((void *)&ga, (void *)arg, sizeof(ga)))
+ return -EFAULT;
+
+ g_gwinfo.alpha_value = ga.alpha;
+
+ if (g_gwinfo.enabled)
+ _enable_graphic_window(info);
+ else
+ _disable_graphic_window(info);
+ break;
+ case MX2FB_SET_CLR_KEY:
+ if (mx2fbi->type != MX2FB_TYPE_GW)
+ return -ENODEV;
+
+ if (!arg)
+ return -EINVAL;
+
+ /* set graphic window information */
+ if (copy_from_user((void *)&ck, (void *)arg, sizeof(ck)))
+ return -EFAULT;
+
+ g_gwinfo.ck_enabled = ck.enable;
+ g_gwinfo.ck_red = (ck.color_key & 0x003F0000) >> 16;
+ g_gwinfo.ck_green = (ck.color_key & 0x00003F00) >> 8;
+ g_gwinfo.ck_blue = ck.color_key & 0x0000003F;
+
+ if (g_gwinfo.enabled)
+ _enable_graphic_window(info);
+ else
+ _disable_graphic_window(info);
+ break;
+ case FBIOGET_GWINFO:
+ if (mx2fbi->type != MX2FB_TYPE_GW)
+ return -ENODEV;
+
+ if (!arg)
+ return -EINVAL;
+
+ /* get graphic window information */
+ if (copy_to_user((void *)arg, (void *)&g_gwinfo,
+ sizeof(g_gwinfo)))
+ return -EFAULT;
+ break;
+ case FBIOPUT_GWINFO:
+ if (mx2fbi->type != MX2FB_TYPE_GW)
+ return -ENODEV;
+
+ if (!arg)
+ return -EINVAL;
+
+ /* set graphic window information */
+ if (copy_from_user((void *)&g_gwinfo, (void *)arg,
+ sizeof(g_gwinfo)))
+ return -EFAULT;
+
+ if (g_gwinfo.enabled)
+ _enable_graphic_window(info);
+ else
+ _disable_graphic_window(info);
+ break;
+#ifdef CONFIG_FB_MXC_TVOUT
+ case ENCODER_GET_CAPABILITIES:{
+ int ret;
+ struct video_encoder_capability cap;
+
+ if (mx2fbi->type != MX2FB_TYPE_BG)
+ return -ENODEV;
+
+ ret = fs453_ioctl(cmd, &cap);
+ if (ret)
+ return ret;
+
+ if (copy_to_user((void *)arg, &cap, sizeof(cap)))
+ return -EFAULT;
+ break;
+ }
+ case ENCODER_SET_NORM:{
+ int ret;
+ unsigned long mode;
+ char *smode;
+ struct fb_var_screeninfo var;
+
+ if (mx2fbi->type != MX2FB_TYPE_BG)
+ return -ENODEV;
+
+ if (copy_from_user(&mode, (void *)arg, sizeof(mode)))
+ return -EFAULT;
+ if ((ret = fs453_ioctl(cmd, &mode)))
+ return ret;
+
+ if (mode == VIDEO_ENCODER_PAL)
+ smode = MODE_PAL;
+ else if (mode == VIDEO_ENCODER_NTSC)
+ smode = MODE_NTSC;
+ else
+ smode = MODE_VGA;
+
+ var = info->var;
+ var.nonstd = 0;
+ ret = fb_find_mode(&var, info, smode, mxcfb_modedb,
+ mxcfb_modedb_sz, NULL, default_bpp);
+ if ((ret != 1) && (ret != 2)) /* specified mode not found */
+ return -ENODEV;
+
+ info->var = var;
+ fb_mode = smode;
+ return mx2fb_set_par(info);
+ }
+ case ENCODER_SET_INPUT:
+ case ENCODER_SET_OUTPUT:
+ case ENCODER_ENABLE_OUTPUT:{
+ unsigned long varg;
+
+ if (mx2fbi->type != MX2FB_TYPE_BG)
+ return -ENODEV;
+
+ if (copy_from_user(&varg, (void *)arg, sizeof(varg)))
+ return -EFAULT;
+ return fs453_ioctl(cmd, &varg);
+ }
+#endif
+ default:
+ dev_dbg(info->device, "Unknown ioctl command (0x%08X)\n", cmd);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/*!
+ * @brief Set fixed framebuffer parameters based on variable settings.
+ *
+ * @param info framebuffer information pointer
+ * @return Negative errno on error, or zero on success.
+ */
+static void _set_fix(struct fb_info *info)
+{
+ struct fb_fix_screeninfo *fix = &info->fix;
+ struct fb_var_screeninfo *var = &info->var;
+ struct mx2fb_info *mx2fbi = (struct mx2fb_info *)info->par;
+
+ strncpy(fix->id, mx2fbi->id, strlen(mx2fbi->id));
+ fix->line_length = var->xres_virtual * var->bits_per_pixel / 8;
+ fix->type = FB_TYPE_PACKED_PIXELS;
+ fix->accel = FB_ACCEL_NONE;
+ fix->visual = FB_VISUAL_TRUECOLOR;
+ fix->xpanstep = 1;
+ fix->ypanstep = 1;
+}
+
+/*!
+ * @brief Initialize framebuffer information structure.
+ *
+ * @param info framebuffer information pointer
+ * @param pdev pointer to struct device
+ * @return Negative errno on error, or zero on success.
+ */
+static int __init _init_fbinfo(struct fb_info *info,
+ struct platform_device *pdev)
+{
+ struct mx2fb_info *mx2fbi = (struct mx2fb_info *)info->par;
+
+ info->device = &pdev->dev;
+ info->var.activate = FB_ACTIVATE_NOW;
+ info->fbops = &mx2fb_ops;
+ info->flags = FBINFO_FLAG_DEFAULT;
+ info->pseudo_palette = &mx2fbi->pseudo_palette;
+
+ /* Allocate colormap */
+ fb_alloc_cmap(&info->cmap, 16, 0);
+
+ return 0;
+}
+
+/*!
+ * @brief Install framebuffer into the system.
+ *
+ * @param info framebuffer information pointer
+ * @param pdev pointer to struct device
+ * @return Negative errno on error, or zero on success.
+ */
+static int __init _install_fb(struct fb_info *info,
+ struct platform_device *pdev)
+{
+ struct mx2fb_info *mx2fbi = (struct mx2fb_info *)info->par;
+
+ if (_init_fbinfo(info, pdev))
+ return -EINVAL;
+
+ if (fb_mode == 0)
+ fb_mode = pdev->dev.platform_data;
+
+ if (!fb_find_mode(&info->var, info, fb_mode, mxcfb_modedb,
+ mxcfb_modedb_sz, NULL, default_bpp)) {
+ fb_dealloc_cmap(&info->cmap);
+ return -EBUSY;
+ }
+
+ /* Default Y virtual size is 2x panel size */
+ /* info->var.yres_virtual = info->var.yres << 1; */
+
+ if (mx2fbi->type == MX2FB_TYPE_GW)
+ mx2fbi->blank = FB_BLANK_NORMAL;
+ else
+ mx2fbi->blank = FB_BLANK_UNBLANK;
+
+ if (mx2fb_set_par(info)) {
+ fb_dealloc_cmap(&info->cmap);
+ return -EINVAL;
+ }
+
+ if (register_framebuffer(info) < 0) {
+ _unmap_video_memory(info);
+ fb_dealloc_cmap(&info->cmap);
+ return -EINVAL;
+ }
+
+ mx2fbi->registered = 1;
+ dev_info(info->device, "fb%d: %s fb device registered successfully.\n",
+ info->node, info->fix.id);
+
+ return 0;
+}
+
+/*!
+ * @brief Uninstall framebuffer from the system.
+ *
+ * @param info framebuffer information pointer
+ */
+static void __exit _uninstall_fb(struct fb_info *info)
+{
+ struct mx2fb_info *mx2fbi = (struct mx2fb_info *)info->par;
+
+ if (!mx2fbi->registered)
+ return;
+
+ unregister_framebuffer(info);
+ _unmap_video_memory(info);
+ if (&info->cmap)
+ fb_dealloc_cmap(&info->cmap);
+
+ mx2fbi->registered = 0;
+}
+
+/*!
+ * @brief Allocate memory for framebuffer.
+ *
+ * @param info framebuffer information pointer
+ * @return Negative errno on error, or zero on success.
+ */
+static int _map_video_memory(struct fb_info *info)
+{
+ info->fix.smem_len = info->fix.line_length * info->var.yres_virtual;
+ info->screen_base = dma_alloc_coherent(0,
+ info->fix.smem_len,
+ (dma_addr_t *) & info->fix.
+ smem_start,
+ GFP_DMA | GFP_KERNEL);
+
+ if (info->screen_base == 0) {
+ dev_err(info->device, "Unable to allocate fb memory\n");
+ return -EBUSY;
+ }
+ dev_dbg(info->device, "Allocated fb @ paddr=0x%08lX, size=%d.\n",
+ info->fix.smem_start, info->fix.smem_len);
+
+ info->screen_size = info->fix.smem_len;
+
+ /* Clear the screen */
+ memset((char *)info->screen_base, 0, info->fix.smem_len);
+
+ return 0;
+}
+
+/*!
+ * @brief Release memory for framebuffer.
+ * @param info framebuffer information pointer
+ */
+static void _unmap_video_memory(struct fb_info *info)
+{
+ dma_free_coherent(0, info->fix.smem_len, info->screen_base,
+ (dma_addr_t) info->fix.smem_start);
+
+ info->screen_base = 0;
+ info->fix.smem_start = 0;
+ info->fix.smem_len = 0;
+}
+
+/*!
+ * @brief Enable LCD controller.
+ * @param info framebuffer information pointer
+ */
+static void _enable_lcdc(struct fb_info *info)
+{
+ static int first_enable = 1;
+ struct mx2fb_info *mx2fbi = (struct mx2fb_info *)info->par;
+
+ /*
+ * Graphic window can only be enabled while the HCLK to the LCDC
+ * is disabled. Once enabled it can subsequently be disabled and
+ * enabled without turning off the HCLK.
+ * The graphic window is enabled and then disabled here. So next
+ * time to enable graphic window the HCLK to LCDC does not need
+ * to be disabled, and the flicker (due to disabling of HCLK to
+ * LCDC) is avoided.
+ */
+ if (first_enable) {
+ _enable_graphic_window(info);
+ _disable_graphic_window(info);
+ first_enable = 0;
+ }
+
+ if (mx2fbi->type == MX2FB_TYPE_GW)
+ _enable_graphic_window(info);
+ else if (!fb_enabled) {
+ clk_enable(lcdc_clk);
+ gpio_lcdc_active();
+ board_power_lcd(1);
+ fb_enabled++;
+#ifdef CONFIG_FB_MXC_TVOUT
+ if (fb_mode) {
+ unsigned long mode = 0;
+
+ if (strcmp(fb_mode, MODE_VGA) == 0)
+ mode = VIDEO_ENCODER_VGA;
+ else if (strcmp(fb_mode, MODE_NTSC) == 0)
+ mode = VIDEO_ENCODER_NTSC;
+ else if (strcmp(fb_mode, MODE_PAL) == 0)
+ mode = VIDEO_ENCODER_PAL;
+ if (mode)
+ fs453_ioctl(ENCODER_SET_NORM, &mode);
+ }
+#endif
+ }
+}
+
+/*!
+ * @brief Disable LCD controller.
+ * @param info framebuffer information pointer
+ */
+static void _disable_lcdc(struct fb_info *info)
+{
+ struct mx2fb_info *mx2fbi = (struct mx2fb_info *)info->par;
+
+ if (mx2fbi->type == MX2FB_TYPE_GW)
+ _disable_graphic_window(info);
+ else {
+ if (fb_enabled) {
+ gpio_lcdc_inactive();
+ board_power_lcd(0);
+ clk_disable(lcdc_clk);
+ fb_enabled = 0;
+ }
+#ifdef CONFIG_FB_MXC_TVOUT
+ if (fb_mode) {
+ int enable = 0;
+
+ if ((strcmp(fb_mode, MODE_VGA) == 0)
+ || (strcmp(fb_mode, MODE_NTSC) == 0)
+ || (strcmp(fb_mode, MODE_PAL) == 0))
+ fs453_ioctl(ENCODER_ENABLE_OUTPUT, &enable);
+ }
+#endif
+ }
+}
+
+/*!
+ * @brief Enable graphic window.
+ * @param info framebuffer information pointer
+ */
+static void _enable_graphic_window(struct fb_info *info)
+{
+ struct fb_var_screeninfo *var = &info->var;
+
+ g_gwinfo.enabled = 1;
+
+ g_gwinfo.base = (var->yoffset * var->xres_virtual + var->xoffset);
+ g_gwinfo.base *= (var->bits_per_pixel) / 8;
+ g_gwinfo.base += info->fix.smem_start;
+
+ g_gwinfo.xres = var->xres;
+ g_gwinfo.yres = var->yres;
+ g_gwinfo.xres_virtual = var->xres_virtual;
+
+ mx2_gw_set(&g_gwinfo);
+}
+
+/*!
+ * @brief Disable graphic window.
+ * @param info framebuffer information pointer
+ */
+static void _disable_graphic_window(struct fb_info *info)
+{
+ unsigned long i = 0;
+
+ g_gwinfo.enabled = 0;
+
+ /*
+ * Set alpha value to zero and reduce gw size, otherwise the graphic
+ * window will not be able to be enabled again.
+ */
+ __raw_writel(__raw_readl(LCDC_REG(LCDC_LGWCR)) & 0x00FFFFFF,
+ LCDC_REG(LCDC_LGWCR));
+ __raw_writel(((16 >> 4) << 20) + 16, LCDC_REG(LCDC_LGWSR));
+ while (i < 1000)
+ i++;
+
+ /* Now disable graphic window */
+ __raw_writel(__raw_readl(LCDC_REG(LCDC_LGWCR)) & ~0x00400000,
+ LCDC_REG(LCDC_LGWCR));
+
+ dev_dbg(info->device, "Graphic window disabled.\n");
+}
+
+/*!
+ * @brief Setup graphic window properties.
+ * @param gwinfo graphic window information pointer
+ */
+void mx2_gw_set(struct fb_gwinfo *gwinfo)
+{
+ int width, height, xpos, ypos;
+ int width_bg, height_bg;
+ unsigned long lgwcr = 0x00400000; /* Graphic window control register */
+
+ if (!gwinfo->enabled) {
+ _disable_graphic_window(0);
+ return;
+ }
+
+ /* Graphic window start address register */
+ __raw_writel(gwinfo->base, LCDC_REG(LCDC_LGWSAR));
+
+ /*
+ * The graphic window width, height, x position and y position
+ * must be synced up width the background window, otherwise there
+ * may be flickering.
+ */
+ width_bg = (__raw_readl(LCDC_REG(LCDC_LSR)) & 0x03F00000) >> 16;
+ height_bg = __raw_readl(LCDC_REG(LCDC_LSR)) & 0x000003FF;
+
+ width = (gwinfo->xres > width_bg) ? width_bg : gwinfo->xres;
+ height = (gwinfo->yres > height_bg) ? height_bg : gwinfo->yres;
+
+ xpos = gwinfo->xpos;
+ ypos = gwinfo->ypos;
+
+ if (xpos + width > width_bg)
+ xpos = width_bg - width;
+ if (ypos + height > height_bg)
+ ypos = height_bg - height;
+
+ /* Graphic window size register */
+ __raw_writel(((width >> 4) << 20) + height, LCDC_REG(LCDC_LGWSR));
+
+ /* Graphic window virtual page width register */
+ __raw_writel(gwinfo->xres_virtual >> 1, LCDC_REG(LCDC_LGWVPWR));
+
+ /* Graphic window position register */
+ __raw_writel(((xpos & 0x000003FF) << 16) | (ypos & 0x000003FF),
+ LCDC_REG(LCDC_LGWPR));
+
+ /* Graphic window panning offset register */
+ __raw_writel(0, LCDC_REG(LCDC_LGWPOR));
+
+ /* Graphic window DMA control register */
+ if (cpu_is_mx27_rev(CHIP_REV_2_0) > 0)
+ __raw_writel(0x00040060, LCDC_REG(LCDC_LGWDCR));
+ else
+ __raw_writel(0x00020010, LCDC_REG(LCDC_LGWDCR));
+
+ /* Graphic window control register */
+ lgwcr |= (gwinfo->alpha_value & 0x000000FF) << 24;
+ lgwcr |= gwinfo->ck_enabled ? 0x00800000 : 0;
+ lgwcr |= gwinfo->vs_reversed ? 0x00200000 : 0;
+
+ /*
+ * Color keying value
+ * Todo: assume always use RGB565
+ */
+ lgwcr |= (gwinfo->ck_red & 0x0000003F) << 12;
+ lgwcr |= (gwinfo->ck_green & 0x0000003F) << 6;
+ lgwcr |= gwinfo->ck_blue & 0x0000003F;
+
+ __raw_writel(lgwcr, LCDC_REG(LCDC_LGWCR));
+
+ pr_debug("Graphic window enabled.\n");
+}
+
+/*!
+ * @brief Update LCDC registers
+ * @param info framebuffer information pointer
+ */
+static void _update_lcdc(struct fb_info *info)
+{
+ unsigned long base;
+ unsigned long perclk3, pcd, pcr;
+ struct fb_var_screeninfo *var = &info->var;
+ struct mx2fb_info *mx2fbi = (struct mx2fb_info *)info->par;
+
+ if (mx2fbi->type == MX2FB_TYPE_GW) {
+ _enable_graphic_window(info);
+ return;
+ }
+
+ base = (var->yoffset * var->xres_virtual + var->xoffset);
+ base *= (var->bits_per_pixel) / 8;
+ base += info->fix.smem_start;
+
+ /* Screen start address register */
+ __raw_writel(base, LCDC_REG(LCDC_LSSAR));
+
+ /* Size register */
+ dev_dbg(info->device, "xres = %d, yres = %d\n",
+ info->var.xres, info->var.yres);
+ __raw_writel(((info->var.xres >> 4) << 20) + info->var.yres,
+ LCDC_REG(LCDC_LSR));
+
+ /* Virtual page width register */
+ __raw_writel(info->var.xres_virtual >> 1, LCDC_REG(LCDC_LVPWR));
+
+ /* To setup LCDC pixel clock */
+ perclk3 = clk_round_rate(lcdc_clk, 134000000);
+ if (clk_set_rate(lcdc_clk, perclk3)) {
+ printk(KERN_INFO "mx2fb: Unable to set clock to %lu\n",
+ perclk3);
+ perclk3 = clk_get_rate(lcdc_clk);
+ }
+
+ /* Calculate pixel clock divider, and round to the nearest integer */
+ pcd = (perclk3 * 8 / (PICOS2KHZ(var->pixclock) * 1000UL) + 4) / 8;
+ if (--pcd > 0x3F)
+ pcd = 0x3F;
+
+ /* Panel configuration register */
+ pcr = 0xFA008B80 | pcd;
+ pcr |= (var->sync & FB_SYNC_CLK_INVERT) ? 0 : 0x00200000;
+ pcr |= (var->sync & FB_SYNC_DATA_INVERT) ? 0x01000000 : 0;
+ pcr |= (var->sync & FB_SYNC_SHARP_MODE) ? 0x00000040 : 0;
+ pcr |= (var->sync & FB_SYNC_OE_ACT_HIGH) ? 0 : 0x00100000;
+ __raw_writel(pcr, LCDC_REG(LCDC_LPCR));
+
+ /* Horizontal and vertical configuration register */
+ __raw_writel(((var->hsync_len - 1) << 26)
+ + ((var->right_margin - 1) << 8)
+ + (var->left_margin - 3), LCDC_REG(LCDC_LHCR));
+ __raw_writel((var->vsync_len << 26)
+ + (var->lower_margin << 8)
+ + var->upper_margin, LCDC_REG(LCDC_LVCR));
+
+ /* Sharp configuration register */
+ __raw_writel(0x00120300, LCDC_REG(LCDC_LSCR));
+
+ /* Refresh mode control reigster */
+ __raw_writel(0x00000000, LCDC_REG(LCDC_LRMCR));
+
+ /* DMA control register */
+ if (cpu_is_mx27_rev(CHIP_REV_2_0) > 0)
+ __raw_writel(0x00040060, LCDC_REG(LCDC_LDCR));
+ else
+ __raw_writel(0x00020010, LCDC_REG(LCDC_LDCR));
+}
+
+/*!
+ * @brief Set LCD brightness
+ * @param level brightness level
+ */
+void mx2fb_set_brightness(uint8_t level)
+{
+ /* Set LCDC PWM contract control register */
+ __raw_writel(0x00A90300 | level, LCDC_REG(LCDC_LPCCR));
+}
+
+EXPORT_SYMBOL(mx2fb_set_brightness);
+
+/*
+ * @brief LCDC interrupt handler
+ */
+static irqreturn_t mx2fb_isr(int irq, void *dev_id)
+{
+ struct fb_event event;
+ unsigned long status = __raw_readl(LCDC_REG(LCDC_LISR));
+
+ if (status & MX2FB_INT_EOF) {
+ event.info = &mx2fb_info[0];
+ atomic_notifier_call_chain(&mx2fb_notifier_list,
+ FB_EVENT_MXC_EOF, &event);
+ }
+
+ if (status & MX2FB_INT_GW_EOF) {
+ event.info = &mx2fb_info[1];
+ atomic_notifier_call_chain(&mx2fb_notifier_list,
+ FB_EVENT_MXC_EOF, &event);
+ }
+
+ return IRQ_HANDLED;
+}
+
+/*!
+ * @brief Config and request LCDC interrupt
+ */
+static void _request_irq(void)
+{
+ unsigned long status;
+ unsigned long flags;
+
+ /* Read to clear the status */
+ status = __raw_readl(LCDC_REG(LCDC_LISR));
+
+ if (request_irq(MXC_INT_LCDC, mx2fb_isr, 0, "LCDC", 0))
+ pr_info("Request LCDC IRQ failed.\n");
+ else {
+ spin_lock_irqsave(&mx2fb_notifier_list.lock, flags);
+
+ /* Enable interrupt in case client has registered */
+ if (mx2fb_notifier_list.head != NULL) {
+ unsigned long status;
+ unsigned long ints = MX2FB_INT_EOF;
+
+ ints |= MX2FB_INT_GW_EOF;
+
+ /* Read to clear the status */
+ status = __raw_readl(LCDC_REG(LCDC_LISR));
+
+ /* Configure interrupt condition for EOF */
+ __raw_writel(0x0, LCDC_REG(LCDC_LICR));
+
+ /* Enable EOF and graphic window EOF interrupt */
+ __raw_writel(ints, LCDC_REG(LCDC_LIER));
+ }
+
+ spin_unlock_irqrestore(&mx2fb_notifier_list.lock, flags);
+ }
+}
+
+/*!
+ * @brief Free LCDC interrupt handler
+ */
+static void _free_irq(void)
+{
+ /* Disable all LCDC interrupt */
+ __raw_writel(0x0, LCDC_REG(LCDC_LIER));
+
+ free_irq(MXC_INT_LCDC, 0);
+}
+
+/*!
+ * @brief Register a client notifier
+ * @param nb notifier block to callback on events
+ */
+int mx2fb_register_client(struct notifier_block *nb)
+{
+ unsigned long flags;
+ int ret;
+
+ ret = atomic_notifier_chain_register(&mx2fb_notifier_list, nb);
+
+ spin_lock_irqsave(&mx2fb_notifier_list.lock, flags);
+
+ /* Enable interrupt in case client has registered */
+ if (mx2fb_notifier_list.head != NULL) {
+ unsigned long status;
+ unsigned long ints = MX2FB_INT_EOF;
+
+ ints |= MX2FB_INT_GW_EOF;
+
+ /* Read to clear the status */
+ status = __raw_readl(LCDC_REG(LCDC_LISR));
+
+ /* Configure interrupt condition for EOF */
+ __raw_writel(0x0, LCDC_REG(LCDC_LICR));
+
+ /* Enable EOF and graphic window EOF interrupt */
+ __raw_writel(ints, LCDC_REG(LCDC_LIER));
+ }
+
+ spin_unlock_irqrestore(&mx2fb_notifier_list.lock, flags);
+
+ return ret;
+}
+
+/*!
+ * @brief Unregister a client notifier
+ * @param nb notifier block to callback on events
+ */
+int mx2fb_unregister_client(struct notifier_block *nb)
+{
+ unsigned long flags;
+ int ret;
+
+ ret = atomic_notifier_chain_unregister(&mx2fb_notifier_list, nb);
+
+ spin_lock_irqsave(&mx2fb_notifier_list.lock, flags);
+
+ /* Mask interrupt in case no client registered */
+ if (mx2fb_notifier_list.head == NULL)
+ __raw_writel(0x0, LCDC_REG(LCDC_LIER));
+
+ spin_unlock_irqrestore(&mx2fb_notifier_list.lock, flags);
+
+ return ret;
+}
+
+#ifdef CONFIG_PM
+/*
+ * Power management hooks. Note that we won't be called from IRQ context,
+ * unlike the blank functions above, so we may sleep.
+ */
+
+/*!
+ * @brief Suspends the framebuffer and blanks the screen.
+ * Power management support
+ */
+static int mx2fb_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ _disable_lcdc(&mx2fb_info[0]);
+
+ return 0;
+}
+
+/*!
+ * @brief Resumes the framebuffer and unblanks the screen.
+ * Power management support
+ */
+static int mx2fb_resume(struct platform_device *pdev)
+{
+ _enable_lcdc(&mx2fb_info[0]);
+
+ return 0;
+}
+
+#endif /* CONFIG_PM */
+
+/*!
+ * @brief Probe routine for the framebuffer driver. It is called during the
+ * driver binding process.
+ *
+ * @return Appropriate error code to the kernel common code
+ */
+static int mx2fb_probe(struct platform_device *pdev)
+{
+ int ret, i;
+
+ lcdc_clk = clk_get(&pdev->dev, "lcdc_clk");
+
+ for (i = 0; i < sizeof(mx2fb_info) / sizeof(struct fb_info); i++) {
+ if ((ret = _install_fb(&mx2fb_info[i], pdev))) {
+ dev_err(&pdev->dev,
+ "Failed to register framebuffer %d\n", i);
+ return ret;
+ }
+ }
+ _request_irq();
+
+ return 0;
+}
+
+/*!
+ * @brief Initialization
+ */
+int __init mx2fb_init(void)
+{
+ /*
+ * For kernel boot options (in 'video=xxxfb:<options>' format)
+ */
+#ifndef MODULE
+ {
+ char *option;
+
+ if (fb_get_options("mxcfb", &option))
+ return -ENODEV;
+ mx2fb_setup(option);
+ }
+#endif
+ return platform_driver_register(&mx2fb_driver);
+}
+
+/*!
+ * @brief Cleanup
+ */
+void __exit mx2fb_exit(void)
+{
+ int i;
+
+ _free_irq();
+ for (i = sizeof(mx2fb_info) / sizeof(struct fb_info); i > 0; i--)
+ _uninstall_fb(&mx2fb_info[i - 1]);
+
+ platform_driver_unregister(&mx2fb_driver);
+}
+
+#ifndef MODULE
+/*!
+ * @brief Setup
+ * Parse user specified options
+ * Example: video=mxcfb:240x320,bpp=16,Sharp-QVGA
+ */
+static int __init mx2fb_setup(char *options)
+{
+ char *opt;
+
+ if (!options || !*options)
+ return 0;
+
+ while ((opt = strsep(&options, ",")) != NULL) {
+ if (!*opt)
+ continue;
+
+ if (!strncmp(opt, "bpp=", 4))
+ default_bpp = simple_strtoul(opt + 4, NULL, 0);
+ else
+ fb_mode = opt;
+ }
+
+ return 0;
+}
+#endif
+
+/* Modularization */
+module_init(mx2fb_init);
+module_exit(mx2fb_exit);
+
+EXPORT_SYMBOL(mx2_gw_set);
+EXPORT_SYMBOL(mx2fb_register_client);
+EXPORT_SYMBOL(mx2fb_unregister_client);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("MX2 framebuffer driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/mxc/mx2fb.h b/drivers/video/mxc/mx2fb.h
new file mode 100644
index 000000000000..ed20d78289ce
--- /dev/null
+++ b/drivers/video/mxc/mx2fb.h
@@ -0,0 +1,141 @@
+/*
+ * Copyright 2004-2007 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/*!
+ * @file mx2fb.h
+ *
+ * @brief Header file for the MX27 Frame buffer
+ *
+ * @ingroup Framebuffer
+ */
+#ifndef __MX2FB_H__
+#define __MX2FB_H__
+
+/*! @brief MX27 LCDC graphic window information */
+struct fb_gwinfo {
+ /*! Non-zero if graphic window is enabled */
+ __u32 enabled;
+
+ /* The fields below are valid only when graphic window is enabled */
+
+ /*! Graphic window alpha value from 0 to 255 */
+ __u32 alpha_value;
+
+ /*! Non-zero if graphic window color keying is enabled. */
+ __u32 ck_enabled;
+
+ /*
+ * The fields ck_red, ck_green and ck_blue are valid only when
+ * graphic window and the color keying are enabled. They are the
+ * color component of graphic window color keying.
+ */
+
+ /*! Color keying red component */
+ __u32 ck_red;
+
+ /*! Color keying green component */
+ __u32 ck_green;
+
+ /*! Color keying blue component */
+ __u32 ck_blue;
+
+ /*! Graphic window x position */
+ __u32 xpos;
+
+ /*! Graphic window y position */
+ __u32 ypos;
+
+ /*! Non-zero if graphic window vertical scan in reverse direction. */
+ __u32 vs_reversed;
+
+ /*
+ * The following fields are valid for FBIOGET_GWINFO and
+ * mx2_gw_set(). FBIOPUT_GWINFO ignores these fields.
+ */
+ __u32 base; /* Graphic window start address */
+ __u32 xres; /* Visible x resolution */
+ __u32 yres; /* Visible y resolution */
+ __u32 xres_virtual; /* Virtual x resolution */
+};
+
+/* 0x46E0-0x46FF are reserved for MX27 */
+#define FBIOGET_GWINFO 0x46E0 /*!< Get graphic window information */
+#define FBIOPUT_GWINFO 0x46E1 /*!< Set graphic window information */
+
+struct mx2fb_gbl_alpha {
+ int enable;
+ int alpha;
+};
+
+struct mx2fb_color_key {
+ int enable;
+ __u32 color_key;
+};
+
+#define MX2FB_SET_GBL_ALPHA _IOW('M', 0, struct mx2fb_gbl_alpha)
+#define MX2FB_SET_CLR_KEY _IOW('M', 1, struct mx2fb_color_key)
+#define MX2FB_WAIT_FOR_VSYNC _IOW('F', 0x20, u_int32_t)
+
+#ifdef __KERNEL__
+
+/*
+ * LCDC register definitions
+ */
+#define LCDC_LSSAR 0x00
+#define LCDC_LSR 0x04
+#define LCDC_LVPWR 0x08
+#define LCDC_LCPR 0x0C
+#define LCDC_LCWHBR 0x10
+#define LCDC_LCCMR 0x14
+#define LCDC_LPCR 0x18
+#define LCDC_LHCR 0x1C
+#define LCDC_LVCR 0x20
+#define LCDC_LPOR 0x24
+#define LCDC_LSCR 0x28
+#define LCDC_LPCCR 0x2C
+#define LCDC_LDCR 0x30
+#define LCDC_LRMCR 0x34
+#define LCDC_LICR 0x38
+#define LCDC_LIER 0x3C
+#define LCDC_LISR 0x40
+#define LCDC_LGWSAR 0x50
+#define LCDC_LGWSR 0x54
+#define LCDC_LGWVPWR 0x58
+#define LCDC_LGWPOR 0x5C
+#define LCDC_LGWPR 0x60
+#define LCDC_LGWCR 0x64
+#define LCDC_LGWDCR 0x68
+#define LCDC_LAUSCR 0x80
+#define LCDC_LAUSCCR 0x84
+
+#define LCDC_REG(reg) (IO_ADDRESS(LCDC_BASE_ADDR) + reg)
+
+#define MX2FB_INT_BOF 0x0001 /* Beginning of Frame */
+#define MX2FB_INT_EOF 0x0002 /* End of Frame */
+#define MX2FB_INT_ERR_RES 0x0004 /* Error Response */
+#define MX2FB_INT_UDR_ERR 0x0008 /* Under Run Error */
+#define MX2FB_INT_GW_BOF 0x0010 /* Graphic Window BOF */
+#define MX2FB_INT_GW_EOF 0x0020 /* Graphic Window EOF */
+#define MX2FB_INT_GW_ERR_RES 0x0040 /* Graphic Window ERR_RES */
+#define MX2FB_INT_GW_UDR_ERR 0x0080 /* Graphic Window UDR_ERR */
+
+#define FB_EVENT_MXC_EOF 0x8001 /* End of Frame event */
+
+int mx2fb_register_client(struct notifier_block *nb);
+int mx2fb_unregister_client(struct notifier_block *nb);
+
+void mx2_gw_set(struct fb_gwinfo *gwinfo);
+
+#endif /* __KERNEL__ */
+
+#endif /* __MX2FB_H__ */
diff --git a/drivers/video/mxc/mxc_ipuv3_fb.c b/drivers/video/mxc/mxc_ipuv3_fb.c
new file mode 100644
index 000000000000..4000f212eb91
--- /dev/null
+++ b/drivers/video/mxc/mxc_ipuv3_fb.c
@@ -0,0 +1,1115 @@
+/*
+ * Copyright 2004-2009 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/*!
+ * @defgroup Framebuffer Framebuffer Driver for SDC and ADC.
+ */
+
+/*!
+ * @file mxcfb.c
+ *
+ * @brief MXC Frame buffer driver for SDC
+ *
+ * @ingroup Framebuffer
+ */
+
+/*!
+ * Include files
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/fb.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/dma-mapping.h>
+#include <linux/clk.h>
+#include <linux/console.h>
+#include <mach/hardware.h>
+#include <asm/io.h>
+#include <asm/mach-types.h>
+#include <asm/uaccess.h>
+#include <mach/ipu.h>
+#include <mach/mxcfb.h>
+
+/*
+ * Driver name
+ */
+#define MXCFB_NAME "mxc_sdc_fb"
+/*!
+ * Structure containing the MXC specific framebuffer information.
+ */
+struct mxcfb_info {
+ int blank;
+ ipu_channel_t ipu_ch;
+ int ipu_di;
+ bool overlay;
+ uint32_t ipu_ch_irq;
+ uint32_t cur_ipu_buf;
+
+ u32 pseudo_palette[16];
+
+ struct semaphore flip_sem;
+ struct completion vsync_complete;
+};
+
+struct mxcfb_alloc_list {
+ struct list_head list;
+ dma_addr_t phy_addr;
+ void *cpu_addr;
+ u32 size;
+};
+
+static char *fb_mode;
+static unsigned long default_bpp = 16;
+#ifdef CONFIG_FB_MXC_INTERNAL_MEM
+static struct clk *iram_clk;
+#endif
+LIST_HEAD(fb_alloc_list);
+
+static uint32_t bpp_to_pixfmt(struct fb_info *fbi)
+{
+ uint32_t pixfmt = 0;
+
+ if (fbi->var.nonstd)
+ return fbi->var.nonstd;
+
+ switch (fbi->var.bits_per_pixel) {
+ case 24:
+ pixfmt = IPU_PIX_FMT_BGR24;
+ break;
+ case 32:
+ pixfmt = IPU_PIX_FMT_BGR32;
+ break;
+ case 16:
+ pixfmt = IPU_PIX_FMT_RGB565;
+ break;
+ }
+ return pixfmt;
+}
+
+static irqreturn_t mxcfb_irq_handler(int irq, void *dev_id);
+static int mxcfb_blank(int blank, struct fb_info *info);
+static int mxcfb_map_video_memory(struct fb_info *fbi, bool use_internal_ram);
+static int mxcfb_unmap_video_memory(struct fb_info *fbi);
+
+/*
+ * Set fixed framebuffer parameters based on variable settings.
+ *
+ * @param info framebuffer information pointer
+ */
+static int mxcfb_set_fix(struct fb_info *info)
+{
+ struct fb_fix_screeninfo *fix = &info->fix;
+ struct fb_var_screeninfo *var = &info->var;
+
+ fix->line_length = var->xres_virtual * var->bits_per_pixel / 8;
+
+ fix->type = FB_TYPE_PACKED_PIXELS;
+ fix->accel = FB_ACCEL_NONE;
+ fix->visual = FB_VISUAL_TRUECOLOR;
+ fix->xpanstep = 1;
+ fix->ypanstep = 1;
+
+ return 0;
+}
+
+/*
+ * Set framebuffer parameters and change the operating mode.
+ *
+ * @param info framebuffer information pointer
+ */
+static int mxcfb_set_par(struct fb_info *fbi)
+{
+ int retval;
+ bool use_iram = false;
+ u32 mem_len;
+ ipu_di_signal_cfg_t sig_cfg;
+ ipu_channel_params_t params;
+ struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)fbi->par;
+
+ dev_dbg(fbi->device, "Reconfiguring framebuffer\n");
+
+ ipu_disable_irq(mxc_fbi->ipu_ch_irq);
+ ipu_disable_channel(mxc_fbi->ipu_ch, true);
+ ipu_uninit_channel(mxc_fbi->ipu_ch);
+ ipu_clear_irq(mxc_fbi->ipu_ch_irq);
+ mxcfb_set_fix(fbi);
+
+ mem_len = fbi->var.yres_virtual * fbi->fix.line_length;
+ if (mem_len > fbi->fix.smem_len) {
+ if (fbi->fix.smem_start)
+ mxcfb_unmap_video_memory(fbi);
+
+#ifdef CONFIG_FB_MXC_INTERNAL_MEM
+ if (mxc_fbi->ipu_ch == MEM_BG_SYNC)
+ use_iram = true;
+#endif
+ if (mxcfb_map_video_memory(fbi, use_iram) < 0)
+ return -ENOMEM;
+ }
+#ifdef CONFIG_MXC_IPU_V1
+ ipu_init_channel(mxc_fbi->ipu_ch, NULL);
+#else
+ memset(&params, 0, sizeof(params));
+ params.mem_dp_bg_sync.di = mxc_fbi->ipu_di;
+
+ /* Assuming interlaced means YUV output */
+ if (fbi->var.vmode & FB_VMODE_INTERLACED) {
+ params.mem_dp_bg_sync.interlaced = true;
+ params.mem_dp_bg_sync.out_pixel_fmt = IPU_PIX_FMT_YUV444;
+ } else {
+ params.mem_dp_bg_sync.out_pixel_fmt = IPU_PIX_FMT_RGB666;
+ }
+ params.mem_dp_bg_sync.in_pixel_fmt = bpp_to_pixfmt(fbi);
+ ipu_init_channel(mxc_fbi->ipu_ch, &params);
+#endif
+
+ if (!mxc_fbi->overlay) {
+ memset(&sig_cfg, 0, sizeof(sig_cfg));
+ if (fbi->var.vmode & FB_VMODE_INTERLACED)
+ sig_cfg.interlaced = true;
+ if (fbi->var.vmode & FB_VMODE_ODD_FLD_FIRST) /* PAL */
+ sig_cfg.odd_field_first = true;
+ if (fbi->var.sync & FB_SYNC_EXT)
+ sig_cfg.ext_clk = true;
+ if (fbi->var.sync & FB_SYNC_HOR_HIGH_ACT)
+ sig_cfg.Hsync_pol = true;
+ if (fbi->var.sync & FB_SYNC_VERT_HIGH_ACT)
+ sig_cfg.Vsync_pol = true;
+ if (fbi->var.sync & FB_SYNC_CLK_INVERT)
+ sig_cfg.clk_pol = true;
+ if (fbi->var.sync & FB_SYNC_DATA_INVERT)
+ sig_cfg.data_pol = true;
+ if (fbi->var.sync & FB_SYNC_OE_ACT_HIGH)
+ sig_cfg.enable_pol = true;
+ if (fbi->var.sync & FB_SYNC_CLK_IDLE_EN)
+ sig_cfg.clkidle_en = true;
+
+ dev_dbg(fbi->device, "pixclock = %ul Hz\n",
+ (u32) (PICOS2KHZ(fbi->var.pixclock) * 1000UL));
+
+#ifdef CONFIG_MXC_IPU_V1
+ if (ipu_sdc_init_panel(mode,
+ (PICOS2KHZ(fbi->var.pixclock)) * 1000UL,
+ fbi->var.xres, fbi->var.yres,
+ (fbi->var.sync & FB_SYNC_SWAP_RGB) ?
+ IPU_PIX_FMT_BGR666 : IPU_PIX_FMT_RGB666,
+ fbi->var.left_margin,
+ fbi->var.hsync_len,
+ fbi->var.right_margin,
+ fbi->var.upper_margin,
+ fbi->var.vsync_len,
+ fbi->var.lower_margin, sig_cfg) != 0) {
+#else
+ if (ipu_init_sync_panel(mxc_fbi->ipu_di,
+ (PICOS2KHZ(fbi->var.pixclock)) * 1000UL,
+ fbi->var.xres, fbi->var.yres,
+ params.mem_dp_bg_sync.out_pixel_fmt,
+ fbi->var.left_margin,
+ fbi->var.hsync_len,
+ fbi->var.right_margin,
+ fbi->var.upper_margin,
+ fbi->var.vsync_len,
+ fbi->var.lower_margin,
+ 480, sig_cfg) != 0) {
+#endif
+ dev_err(fbi->device,
+ "mxcfb: Error initializing panel.\n");
+ return -EINVAL;
+ }
+
+ fbi->mode =
+ (struct fb_videomode *)fb_match_mode(&fbi->var,
+ &fbi->modelist);
+ ipu_disp_set_window_pos(mxc_fbi->ipu_ch, 0, 0);
+ }
+
+ mxc_fbi->cur_ipu_buf = 1;
+ sema_init(&mxc_fbi->flip_sem, 1);
+ fbi->var.xoffset = fbi->var.yoffset = 0;
+
+ retval = ipu_init_channel_buffer(mxc_fbi->ipu_ch, IPU_INPUT_BUFFER,
+ bpp_to_pixfmt(fbi),
+ fbi->var.xres, fbi->var.yres,
+ fbi->fix.line_length,
+ IPU_ROTATE_NONE,
+ fbi->fix.smem_start +
+ (fbi->fix.line_length * fbi->var.yres),
+ fbi->fix.smem_start,
+ 0, 0);
+ if (retval) {
+ dev_err(fbi->device,
+ "ipu_init_channel_buffer error %d\n", retval);
+ return retval;
+ }
+
+ if (mxc_fbi->blank == FB_BLANK_UNBLANK) {
+ ipu_enable_channel(mxc_fbi->ipu_ch);
+ }
+
+ return 0;
+}
+
+/*
+ * Check framebuffer variable parameters and adjust to valid values.
+ *
+ * @param var framebuffer variable parameters
+ *
+ * @param info framebuffer information pointer
+ */
+static int mxcfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
+{
+ u32 vtotal;
+ u32 htotal;
+ struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)info->par;
+
+ if (var->xres_virtual < var->xres)
+ var->xres_virtual = var->xres;
+ if (var->yres_virtual < var->yres)
+ var->yres_virtual = var->yres;
+
+#ifdef CONFIG_FB_MXC_INTERNAL_MEM
+ if ((info->fix.smem_start == FB_RAM_BASE_ADDR) &&
+ ((var->yres_virtual * var->xres_virtual * var->bits_per_pixel / 8) >
+ FB_RAM_SIZE))
+ return -EINVAL;
+#endif
+
+ if ((var->bits_per_pixel != 32) && (var->bits_per_pixel != 24) &&
+ (var->bits_per_pixel != 16))
+ var->bits_per_pixel = default_bpp;
+
+ if (mxc_fbi->ipu_ch == MEM_DC_SYNC && mxc_fbi->ipu_di == 1) {
+ var->bits_per_pixel = 16;
+ var->nonstd = IPU_PIX_FMT_UYVY;
+ }
+
+ switch (var->bits_per_pixel) {
+ case 16:
+ var->red.length = 5;
+ var->red.offset = 11;
+ var->red.msb_right = 0;
+
+ var->green.length = 6;
+ var->green.offset = 5;
+ var->green.msb_right = 0;
+
+ var->blue.length = 5;
+ var->blue.offset = 0;
+ var->blue.msb_right = 0;
+
+ var->transp.length = 0;
+ var->transp.offset = 0;
+ var->transp.msb_right = 0;
+ break;
+ case 24:
+ var->red.length = 8;
+ var->red.offset = 16;
+ var->red.msb_right = 0;
+
+ var->green.length = 8;
+ var->green.offset = 8;
+ var->green.msb_right = 0;
+
+ var->blue.length = 8;
+ var->blue.offset = 0;
+ var->blue.msb_right = 0;
+
+ var->transp.length = 0;
+ var->transp.offset = 0;
+ var->transp.msb_right = 0;
+ break;
+ case 32:
+ var->red.length = 8;
+ var->red.offset = 16;
+ var->red.msb_right = 0;
+
+ var->green.length = 8;
+ var->green.offset = 8;
+ var->green.msb_right = 0;
+
+ var->blue.length = 8;
+ var->blue.offset = 0;
+ var->blue.msb_right = 0;
+
+ var->transp.length = 8;
+ var->transp.offset = 24;
+ var->transp.msb_right = 0;
+ break;
+ }
+
+ if (var->pixclock < 1000) {
+ htotal = var->xres + var->right_margin + var->hsync_len +
+ var->left_margin;
+ vtotal = var->yres + var->lower_margin + var->vsync_len +
+ var->upper_margin;
+ var->pixclock = (vtotal * htotal * 6UL) / 100UL;
+ var->pixclock = KHZ2PICOS(var->pixclock);
+ dev_dbg(info->device,
+ "pixclock set for 60Hz refresh = %u ps\n",
+ var->pixclock);
+ }
+
+ var->height = -1;
+ var->width = -1;
+ var->grayscale = 0;
+
+ return 0;
+}
+
+static inline u_int _chan_to_field(u_int chan, struct fb_bitfield *bf)
+{
+ chan &= 0xffff;
+ chan >>= 16 - bf->length;
+ return chan << bf->offset;
+}
+
+static int mxcfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
+ u_int trans, struct fb_info *fbi)
+{
+ unsigned int val;
+ int ret = 1;
+
+ /*
+ * If greyscale is true, then we convert the RGB value
+ * to greyscale no matter what visual we are using.
+ */
+ if (fbi->var.grayscale)
+ red = green = blue = (19595 * red + 38470 * green +
+ 7471 * blue) >> 16;
+ switch (fbi->fix.visual) {
+ case FB_VISUAL_TRUECOLOR:
+ /*
+ * 16-bit True Colour. We encode the RGB value
+ * according to the RGB bitfield information.
+ */
+ if (regno < 16) {
+ u32 *pal = fbi->pseudo_palette;
+
+ val = _chan_to_field(red, &fbi->var.red);
+ val |= _chan_to_field(green, &fbi->var.green);
+ val |= _chan_to_field(blue, &fbi->var.blue);
+
+ pal[regno] = val;
+ ret = 0;
+ }
+ break;
+
+ case FB_VISUAL_STATIC_PSEUDOCOLOR:
+ case FB_VISUAL_PSEUDOCOLOR:
+ break;
+ }
+
+ return ret;
+}
+
+/*
+ * Function to handle custom ioctls for MXC framebuffer.
+ *
+ * @param inode inode struct
+ *
+ * @param file file struct
+ *
+ * @param cmd Ioctl command to handle
+ *
+ * @param arg User pointer to command arguments
+ *
+ * @param fbi framebuffer information pointer
+ */
+static int mxcfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
+{
+ int retval = 0;
+ int __user *argp = (void __user *)arg;
+ struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)fbi->par;
+
+ switch (cmd) {
+ case MXCFB_SET_GBL_ALPHA:
+ {
+ struct mxcfb_gbl_alpha ga;
+ if (copy_from_user(&ga, (void *)arg, sizeof(ga))) {
+ retval = -EFAULT;
+ break;
+ }
+ retval =
+ ipu_disp_set_global_alpha(MEM_BG_SYNC,
+ (bool) ga.enable,
+ ga.alpha);
+ dev_dbg(fbi->device, "Set global alpha to %d\n",
+ ga.alpha);
+ break;
+ }
+ case MXCFB_SET_CLR_KEY:
+ {
+ struct mxcfb_color_key key;
+ if (copy_from_user(&key, (void *)arg, sizeof(key))) {
+ retval = -EFAULT;
+ break;
+ }
+ retval = ipu_disp_set_color_key(MEM_BG_SYNC, key.enable,
+ key.color_key);
+ dev_dbg(fbi->device, "Set color key to 0x%08X\n",
+ key.color_key);
+ break;
+ }
+ case MXCFB_WAIT_FOR_VSYNC:
+ {
+ if (mxc_fbi->blank != FB_BLANK_UNBLANK)
+ break;
+
+ down(&mxc_fbi->flip_sem);
+ init_completion(&mxc_fbi->vsync_complete);
+
+ ipu_clear_irq(mxc_fbi->ipu_ch_irq);
+ ipu_enable_irq(mxc_fbi->ipu_ch_irq);
+ retval = wait_for_completion_interruptible_timeout(
+ &mxc_fbi->vsync_complete, 1 * HZ);
+ if (retval == 0) {
+ dev_err(fbi->device,
+ "MXCFB_WAIT_FOR_VSYNC: timeout %d\n",
+ retval);
+ retval = -ETIME;
+ } else if (retval > 0) {
+ retval = 0;
+ }
+ break;
+ }
+ case FBIO_ALLOC:
+ {
+ int size;
+ struct mxcfb_alloc_list *mem;
+
+ mem = kzalloc(sizeof(*mem), GFP_KERNEL);
+ if (mem == NULL)
+ return -ENOMEM;
+
+ if (get_user(size, argp))
+ return -EFAULT;
+
+ mem->size = PAGE_ALIGN(size);
+
+ mem->cpu_addr = dma_alloc_coherent(fbi->device, size,
+ &mem->phy_addr,
+ GFP_DMA);
+ if (mem->cpu_addr == NULL) {
+ kfree(mem);
+ return -ENOMEM;
+ }
+
+ list_add(&mem->list, &fb_alloc_list);
+
+ dev_dbg(fbi->device, "allocated %d bytes @ 0x%08X\n",
+ mem->size, mem->phy_addr);
+
+ if (put_user(mem->phy_addr, argp))
+ return -EFAULT;
+
+ break;
+ }
+ case FBIO_FREE:
+ {
+ unsigned long offset;
+ struct mxcfb_alloc_list *mem;
+
+ if (get_user(offset, argp))
+ return -EFAULT;
+
+ retval = -EINVAL;
+ list_for_each_entry(mem, &fb_alloc_list, list) {
+ if (mem->phy_addr == offset) {
+ list_del(&mem->list);
+ dma_free_coherent(fbi->device,
+ mem->size,
+ mem->cpu_addr,
+ mem->phy_addr);
+ kfree(mem);
+ retval = 0;
+ break;
+ }
+ }
+
+ break;
+ }
+ case MXCFB_SET_OVERLAY_POS:
+ {
+ struct mxcfb_pos pos;
+ if (copy_from_user(&pos, (void *)arg, sizeof(pos))) {
+ retval = -EFAULT;
+ break;
+ }
+ retval = ipu_disp_set_window_pos(mxc_fbi->ipu_ch,
+ pos.x, pos.y);
+ break;
+ }
+ default:
+ retval = -EINVAL;
+ }
+ return retval;
+}
+
+/*
+ * mxcfb_blank():
+ * Blank the display.
+ */
+static int mxcfb_blank(int blank, struct fb_info *info)
+{
+ struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)info->par;
+
+ dev_dbg(info->device, "blank = %d\n", blank);
+
+ if (mxc_fbi->blank == blank)
+ return 0;
+
+ mxc_fbi->blank = blank;
+
+ switch (blank) {
+ case FB_BLANK_POWERDOWN:
+ case FB_BLANK_VSYNC_SUSPEND:
+ case FB_BLANK_HSYNC_SUSPEND:
+ case FB_BLANK_NORMAL:
+ ipu_disable_channel(mxc_fbi->ipu_ch, true);
+ ipu_uninit_channel(mxc_fbi->ipu_ch);
+ break;
+ case FB_BLANK_UNBLANK:
+ mxcfb_set_par(info);
+ break;
+ }
+ return 0;
+}
+
+/*
+ * Pan or Wrap the Display
+ *
+ * This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag
+ *
+ * @param var Variable screen buffer information
+ * @param info Framebuffer information pointer
+ */
+static int
+mxcfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
+{
+ struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)info->par;
+ u_int y_bottom;
+ unsigned long base;
+
+ if (var->xoffset > 0) {
+ dev_dbg(info->device, "x panning not supported\n");
+ return -EINVAL;
+ }
+
+ if ((info->var.xoffset == var->xoffset) &&
+ (info->var.yoffset == var->yoffset))
+ return 0; /* No change, do nothing */
+
+ y_bottom = var->yoffset;
+
+ if (!(var->vmode & FB_VMODE_YWRAP))
+ y_bottom += var->yres;
+
+ if (y_bottom > info->var.yres_virtual)
+ return -EINVAL;
+
+ base = (var->yoffset * var->xres_virtual + var->xoffset);
+ base *= (var->bits_per_pixel) / 8;
+ base += info->fix.smem_start;
+
+ dev_dbg(info->device, "Updating SDC BG buf %d address=0x%08lX\n",
+ mxc_fbi->cur_ipu_buf, base);
+
+ down(&mxc_fbi->flip_sem);
+ init_completion(&mxc_fbi->vsync_complete);
+
+ mxc_fbi->cur_ipu_buf = !mxc_fbi->cur_ipu_buf;
+ if (ipu_update_channel_buffer(mxc_fbi->ipu_ch, IPU_INPUT_BUFFER,
+ mxc_fbi->cur_ipu_buf, base) == 0) {
+ ipu_select_buffer(mxc_fbi->ipu_ch, IPU_INPUT_BUFFER,
+ mxc_fbi->cur_ipu_buf);
+ ipu_clear_irq(mxc_fbi->ipu_ch_irq);
+ ipu_enable_irq(mxc_fbi->ipu_ch_irq);
+ } else {
+ dev_err(info->device,
+ "Error updating SDC buf %d to address=0x%08lX\n",
+ mxc_fbi->cur_ipu_buf, base);
+ }
+
+ dev_dbg(info->device, "Update complete\n");
+
+ info->var.xoffset = var->xoffset;
+ info->var.yoffset = var->yoffset;
+
+ if (var->vmode & FB_VMODE_YWRAP)
+ info->var.vmode |= FB_VMODE_YWRAP;
+ else
+ info->var.vmode &= ~FB_VMODE_YWRAP;
+
+ return 0;
+}
+
+/*
+ * Function to handle custom mmap for MXC framebuffer.
+ *
+ * @param fbi framebuffer information pointer
+ *
+ * @param vma Pointer to vm_area_struct
+ */
+static int mxcfb_mmap(struct fb_info *fbi, struct vm_area_struct *vma)
+{
+ bool found = false;
+ u32 len;
+ unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
+ struct mxcfb_alloc_list *mem;
+
+ if (offset < fbi->fix.smem_len) {
+ /* mapping framebuffer memory */
+ len = fbi->fix.smem_len - offset;
+ vma->vm_pgoff = (fbi->fix.smem_start + offset) >> PAGE_SHIFT;
+ } else {
+ list_for_each_entry(mem, &fb_alloc_list, list) {
+ if (offset == mem->phy_addr) {
+ found = true;
+ len = mem->size;
+ break;
+ }
+ }
+ if (!found)
+ return -EINVAL;
+ }
+
+ len = PAGE_ALIGN(len);
+ if (vma->vm_end - vma->vm_start > len)
+ return -EINVAL;
+
+ /* make buffers write-thru cacheable */
+ vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) &
+ ~L_PTE_BUFFERABLE);
+
+ vma->vm_flags |= VM_IO | VM_RESERVED;
+
+ if (remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
+ vma->vm_end - vma->vm_start, vma->vm_page_prot)) {
+ dev_dbg(fbi->device, "mmap remap_pfn_range failed\n");
+ return -ENOBUFS;
+ }
+
+ return 0;
+}
+
+/*!
+ * This structure contains the pointers to the control functions that are
+ * invoked by the core framebuffer driver to perform operations like
+ * blitting, rectangle filling, copy regions and cursor definition.
+ */
+static struct fb_ops mxcfb_ops = {
+ .owner = THIS_MODULE,
+ .fb_set_par = mxcfb_set_par,
+ .fb_check_var = mxcfb_check_var,
+ .fb_setcolreg = mxcfb_setcolreg,
+ .fb_pan_display = mxcfb_pan_display,
+ .fb_ioctl = mxcfb_ioctl,
+ .fb_mmap = mxcfb_mmap,
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+ .fb_blank = mxcfb_blank,
+};
+
+static irqreturn_t mxcfb_irq_handler(int irq, void *dev_id)
+{
+ struct fb_info *fbi = dev_id;
+ struct mxcfb_info *mxc_fbi = fbi->par;
+
+ complete(&mxc_fbi->vsync_complete);
+ up(&mxc_fbi->flip_sem);
+ ipu_disable_irq(irq);
+ return IRQ_HANDLED;
+}
+
+/*
+ * Suspends the framebuffer and blanks the screen. Power management support
+ */
+static int mxcfb_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct fb_info *fbi = platform_get_drvdata(pdev);
+ struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)fbi->par;
+ int saved_blank;
+#ifdef CONFIG_FB_MXC_LOW_PWR_DISPLAY
+ void *fbmem;
+#endif
+
+ acquire_console_sem();
+ fb_set_suspend(fbi, 1);
+ saved_blank = mxc_fbi->blank;
+ mxcfb_blank(FB_BLANK_POWERDOWN, fbi);
+ mxc_fbi->blank = saved_blank;
+ release_console_sem();
+
+ return 0;
+}
+
+/*
+ * Resumes the framebuffer and unblanks the screen. Power management support
+ */
+static int mxcfb_resume(struct platform_device *pdev)
+{
+ struct fb_info *fbi = platform_get_drvdata(pdev);
+ struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)fbi->par;
+ int saved_blank;
+
+ acquire_console_sem();
+ saved_blank = mxc_fbi->blank;
+ mxc_fbi->blank = FB_BLANK_POWERDOWN;
+ mxcfb_blank(saved_blank, fbi);
+ fb_set_suspend(fbi, 0);
+ release_console_sem();
+
+ return 0;
+}
+
+/*
+ * Main framebuffer functions
+ */
+
+/*!
+ * Allocates the DRAM memory for the frame buffer. This buffer is remapped
+ * into a non-cached, non-buffered, memory region to allow palette and pixel
+ * writes to occur without flushing the cache. Once this area is remapped,
+ * all virtual memory access to the video memory should occur at the new region.
+ *
+ * @param fbi framebuffer information pointer
+ *
+ * @param use_internal_ram flag on whether to use internal RAM for memory
+ *
+ * @return Error code indicating success or failure
+ */
+static int mxcfb_map_video_memory(struct fb_info *fbi, bool use_internal_ram)
+{
+ int retval = 0;
+
+#ifdef CONFIG_FB_MXC_INTERNAL_MEM
+ if (use_internal_ram) {
+ fbi->fix.smem_len = FB_RAM_SIZE;
+ fbi->fix.smem_start = FB_RAM_BASE_ADDR;
+ if (fbi->fix.smem_len <
+ (fbi->var.yres_virtual * fbi->fix.line_length)) {
+ dev_err(fbi->device,
+ "Not enough internal RAM for fb config\n");
+ retval = -EINVAL;
+ goto err0;
+ }
+
+ if (request_mem_region(fbi->fix.smem_start, fbi->fix.smem_len,
+ fbi->device->driver->name) == NULL) {
+ dev_err(fbi->device,
+ "Unable to request internal RAM\n");
+ retval = -ENOMEM;
+ goto err0;
+ }
+
+ fbi->screen_base = ioremap(fbi->fix.smem_start,
+ fbi->fix.smem_len);
+ if (!fbi->screen_base) {
+ dev_err(fbi->device,
+ "Unable to map fb memory to virtual address\n");
+ release_mem_region(fbi->fix.smem_start,
+ fbi->fix.smem_len);
+ retval = -EIO;
+ goto err0;
+ }
+
+ iram_clk = clk_get(NULL, "iram_clk");
+ clk_enable(iram_clk);
+ } else
+#endif
+ {
+ fbi->fix.smem_len = fbi->var.yres_virtual *
+ fbi->fix.line_length;
+ fbi->screen_base =
+ dma_alloc_writecombine(fbi->device,
+ fbi->fix.smem_len,
+ (dma_addr_t *) &fbi->fix.smem_start,
+ GFP_DMA);
+
+ if (fbi->screen_base == 0) {
+ dev_err(fbi->device,
+ "Unable to allocate framebuffer memory\n");
+ retval = -EBUSY;
+ goto err0;
+ }
+ }
+
+ dev_dbg(fbi->device, "allocated fb @ paddr=0x%08X, size=%d.\n",
+ (uint32_t) fbi->fix.smem_start, fbi->fix.smem_len);
+
+ fbi->screen_size = fbi->fix.smem_len;
+
+ /* Clear the screen */
+ memset((char *)fbi->screen_base, 0, fbi->fix.smem_len);
+
+ return 0;
+
+err0:
+ fbi->fix.smem_len = 0;
+ fbi->fix.smem_start = 0;
+ fbi->screen_base = NULL;
+ return retval;
+}
+
+/*!
+ * De-allocates the DRAM memory for the frame buffer.
+ *
+ * @param fbi framebuffer information pointer
+ *
+ * @return Error code indicating success or failure
+ */
+static int mxcfb_unmap_video_memory(struct fb_info *fbi)
+{
+#ifdef CONFIG_FB_MXC_INTERNAL_MEM
+ if (fbi->fix.smem_start == FB_RAM_BASE_ADDR) {
+ iounmap(fbi->screen_base);
+ release_mem_region(fbi->fix.smem_start, fbi->fix.smem_len);
+ fbi->fix.smem_start = 0;
+ fbi->fix.smem_len = 0;
+ clk_disable(iram_clk);
+ } else
+#endif
+ {
+ dma_free_writecombine(fbi->device, fbi->fix.smem_len,
+ fbi->screen_base, fbi->fix.smem_start);
+ }
+ fbi->screen_base = 0;
+ fbi->fix.smem_start = 0;
+ fbi->fix.smem_len = 0;
+ return 0;
+}
+
+/*!
+ * Initializes the framebuffer information pointer. After allocating
+ * sufficient memory for the framebuffer structure, the fields are
+ * filled with custom information passed in from the configurable
+ * structures. This includes information such as bits per pixel,
+ * color maps, screen width/height and RGBA offsets.
+ *
+ * @return Framebuffer structure initialized with our information
+ */
+static struct fb_info *mxcfb_init_fbinfo(struct device *dev, struct fb_ops *ops)
+{
+ struct fb_info *fbi;
+ struct mxcfb_info *mxcfbi;
+
+ /*
+ * Allocate sufficient memory for the fb structure
+ */
+ fbi = framebuffer_alloc(sizeof(struct mxcfb_info), dev);
+ if (!fbi)
+ return NULL;
+
+ mxcfbi = (struct mxcfb_info *)fbi->par;
+
+ fbi->var.activate = FB_ACTIVATE_NOW;
+
+ fbi->fbops = ops;
+ fbi->flags = FBINFO_FLAG_DEFAULT;
+ fbi->pseudo_palette = mxcfbi->pseudo_palette;
+
+ /*
+ * Allocate colormap
+ */
+ fb_alloc_cmap(&fbi->cmap, 16, 0);
+
+ return fbi;
+}
+
+/*!
+ * Probe routine for the framebuffer driver. It is called during the
+ * driver binding process. The following functions are performed in
+ * this routine: Framebuffer initialization, Memory allocation and
+ * mapping, Framebuffer registration, IPU initialization.
+ *
+ * @return Appropriate error code to the kernel common code
+ */
+static int mxcfb_probe(struct platform_device *pdev)
+{
+ struct fb_info *fbi;
+ struct mxcfb_info *mxcfbi;
+ int ret = 0;
+
+ /*
+ * Initialize FB structures
+ */
+ fbi = mxcfb_init_fbinfo(&pdev->dev, &mxcfb_ops);
+ if (!fbi) {
+ ret = -ENOMEM;
+ goto err0;
+ }
+ mxcfbi = (struct mxcfb_info *)fbi->par;
+
+ if (pdev->id == 0) {
+ mxcfbi->ipu_ch_irq = IPU_IRQ_BG_SYNC_EOF;
+ mxcfbi->ipu_ch = MEM_BG_SYNC;
+ mxcfbi->ipu_di = pdev->id;
+ ipu_disp_set_global_alpha(MEM_BG_SYNC, true, 0x80);
+ ipu_disp_set_color_key(MEM_BG_SYNC, false, 0);
+ mxcfbi->blank = FB_BLANK_UNBLANK;
+
+ strcpy(fbi->fix.id, "DISP3 BG");
+ } else if (pdev->id == 1) {
+ mxcfbi->ipu_ch_irq = IPU_IRQ_DC_SYNC_EOF;
+ mxcfbi->ipu_ch = MEM_DC_SYNC;
+ mxcfbi->ipu_di = pdev->id;
+ mxcfbi->blank = FB_BLANK_POWERDOWN;
+
+ strcpy(fbi->fix.id, "DISP3 BG - DI1");
+ } else if (pdev->id == 2) { /* Overlay */
+ mxcfbi->ipu_ch_irq = IPU_IRQ_FG_SYNC_EOF;
+ mxcfbi->ipu_ch = MEM_FG_SYNC;
+ mxcfbi->ipu_di = -1;
+ mxcfbi->overlay = true;
+ mxcfbi->blank = FB_BLANK_POWERDOWN;
+
+ strcpy(fbi->fix.id, "DISP3 FG");
+ }
+
+ if (ipu_request_irq(mxcfbi->ipu_ch_irq, mxcfb_irq_handler, 0,
+ MXCFB_NAME, fbi) != 0) {
+ dev_err(&pdev->dev, "Error registering BG irq handler.\n");
+ ret = -EBUSY;
+ goto err1;
+ }
+ ipu_disable_irq(mxcfbi->ipu_ch_irq);
+
+ /* Default Y virtual size is 2x panel size */
+#ifndef CONFIG_FB_MXC_INTERNAL_MEM
+ fbi->var.yres_virtual = fbi->var.yres * 2;
+#endif
+
+ /* Need dummy values until real panel is configured */
+ fbi->var.xres = 240;
+ fbi->var.yres = 320;
+
+ mxcfb_check_var(&fbi->var, fbi);
+ mxcfb_set_fix(fbi);
+
+ ret = register_framebuffer(fbi);
+ if (ret < 0)
+ goto err2;
+
+ platform_set_drvdata(pdev, fbi);
+
+ dev_err(&pdev->dev, "fb registered, using mode %s\n", fb_mode);
+ return 0;
+
+err2:
+ ipu_free_irq(mxcfbi->ipu_ch_irq, fbi);
+err1:
+ fb_dealloc_cmap(&fbi->cmap);
+ framebuffer_release(fbi);
+err0:
+ return ret;
+}
+
+static int mxcfb_remove(struct platform_device *pdev)
+{
+ struct fb_info *fbi = platform_get_drvdata(pdev);
+ struct mxcfb_info *mxc_fbi = fbi->par;
+
+ if (!fbi)
+ return 0;
+
+ mxcfb_blank(FB_BLANK_POWERDOWN, fbi);
+ ipu_free_irq(mxc_fbi->ipu_ch_irq, fbi);
+ mxcfb_unmap_video_memory(fbi);
+
+ if (&fbi->cmap)
+ fb_dealloc_cmap(&fbi->cmap);
+
+ unregister_framebuffer(fbi);
+ framebuffer_release(fbi);
+ return 0;
+}
+
+/*!
+ * This structure contains pointers to the power management callback functions.
+ */
+static struct platform_driver mxcfb_driver = {
+ .driver = {
+ .name = MXCFB_NAME,
+ },
+ .probe = mxcfb_probe,
+ .remove = mxcfb_remove,
+ .suspend = mxcfb_suspend,
+ .resume = mxcfb_resume,
+};
+
+/*
+ * Parse user specified options (`video=trident:')
+ * example:
+ * video=trident:800x600,bpp=16,noaccel
+ */
+int mxcfb_setup(char *options)
+{
+ char *opt;
+ if (!options || !*options)
+ return 0;
+ while ((opt = strsep(&options, ",")) != NULL) {
+ if (!*opt)
+ continue;
+ if (!strncmp(opt, "bpp=", 4))
+ default_bpp = simple_strtoul(opt + 4, NULL, 0);
+ else
+ fb_mode = opt;
+ }
+ return 0;
+}
+
+/*!
+ * Main entry function for the framebuffer. The function registers the power
+ * management callback functions with the kernel and also registers the MXCFB
+ * callback functions with the core Linux framebuffer driver \b fbmem.c
+ *
+ * @return Error code indicating success or failure
+ */
+int __init mxcfb_init(void)
+{
+ int ret = 0;
+#ifndef MODULE
+ char *option = NULL;
+#endif
+
+#ifndef MODULE
+ if (fb_get_options("mxcfb", &option))
+ return -ENODEV;
+ mxcfb_setup(option);
+#endif
+
+ ret = platform_driver_register(&mxcfb_driver);
+ return ret;
+}
+
+void mxcfb_exit(void)
+{
+ platform_driver_unregister(&mxcfb_driver);
+}
+
+module_init(mxcfb_init);
+module_exit(mxcfb_exit);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("MXC framebuffer driver");
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("fb");
diff --git a/drivers/video/mxc/mxcfb.c b/drivers/video/mxc/mxcfb.c
new file mode 100644
index 000000000000..6ec67179b991
--- /dev/null
+++ b/drivers/video/mxc/mxcfb.c
@@ -0,0 +1,1481 @@
+/*
+ * Copyright 2004-2009 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/*!
+ * @defgroup Framebuffer Framebuffer Driver for SDC and ADC.
+ */
+
+/*!
+ * @file mxcfb.c
+ *
+ * @brief MXC Frame buffer driver for SDC
+ *
+ * @ingroup Framebuffer
+ */
+
+/*!
+ * Include files
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/fb.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/dma-mapping.h>
+#include <linux/clk.h>
+#include <linux/console.h>
+#include <mach/hardware.h>
+#include <asm/io.h>
+#include <asm/mach-types.h>
+#include <asm/uaccess.h>
+#include <mach/ipu.h>
+#include <mach/mxcfb.h>
+
+/*
+ * Driver name
+ */
+#define MXCFB_NAME "mxc_sdc_fb"
+/*!
+ * Structure containing the MXC specific framebuffer information.
+ */
+struct mxcfb_info {
+ int blank;
+ ipu_channel_t ipu_ch;
+ uint32_t ipu_ch_irq;
+ uint32_t cur_ipu_buf;
+
+ u32 pseudo_palette[16];
+
+ struct semaphore flip_sem;
+ spinlock_t fb_lock;
+};
+
+struct mxcfb_data {
+ struct fb_info *fbi;
+ struct fb_info *fbi_ovl;
+ volatile int32_t vsync_flag;
+ wait_queue_head_t vsync_wq;
+ wait_queue_head_t suspend_wq;
+ bool suspended;
+ int backlight_level;
+};
+
+struct mxcfb_alloc_list {
+ struct list_head list;
+ dma_addr_t phy_addr;
+ void *cpu_addr;
+ u32 size;
+};
+
+static struct mxcfb_data mxcfb_drv_data;
+
+static char *fb_mode = NULL;
+static unsigned long default_bpp = 16;
+#ifdef CONFIG_FB_MXC_INTERNAL_MEM
+static struct clk *iram_clk;
+#endif
+LIST_HEAD(fb_alloc_list);
+
+static uint32_t bpp_to_pixfmt(int bpp)
+{
+ uint32_t pixfmt = 0;
+ switch (bpp) {
+ case 24:
+ pixfmt = IPU_PIX_FMT_BGR24;
+ break;
+ case 32:
+ pixfmt = IPU_PIX_FMT_BGR32;
+ break;
+ case 16:
+ pixfmt = IPU_PIX_FMT_RGB565;
+ break;
+ }
+ return pixfmt;
+}
+
+extern void gpio_lcd_active(void);
+extern void gpio_lcd_inactive(void);
+#ifdef CONFIG_FB_MXC_TVOUT
+#include <linux/video_encoder.h>
+/*
+ * FIXME: VGA mode is not defined by video_encoder.h
+ * while FS453 supports VGA output.
+ */
+#ifndef VIDEO_ENCODER_VGA
+#define VIDEO_ENCODER_VGA 32
+#endif
+
+#define MODE_PAL "TV-PAL"
+#define MODE_NTSC "TV-NTSC"
+#define MODE_VGA "TV-VGA"
+
+extern int fs453_ioctl(unsigned int cmd, void *arg);
+#endif
+static irqreturn_t mxcfb_irq_handler(int irq, void *dev_id);
+static int mxcfb_blank(int blank, struct fb_info *info);
+static int mxcfb_map_video_memory(struct fb_info *fbi, bool use_internal_ram);
+static int mxcfb_unmap_video_memory(struct fb_info *fbi);
+
+/*
+ * Set fixed framebuffer parameters based on variable settings.
+ *
+ * @param info framebuffer information pointer
+ */
+static int mxcfb_set_fix(struct fb_info *info)
+{
+ struct fb_fix_screeninfo *fix = &info->fix;
+ struct fb_var_screeninfo *var = &info->var;
+ struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)info->par;
+
+ if (mxc_fbi->ipu_ch == MEM_SDC_FG)
+ strncpy(fix->id, "DISP3 FG", 8);
+ else
+ strncpy(fix->id, "DISP3 BG", 8);
+
+ fix->line_length = var->xres_virtual * var->bits_per_pixel / 8;
+
+ fix->type = FB_TYPE_PACKED_PIXELS;
+ fix->accel = FB_ACCEL_NONE;
+ fix->visual = FB_VISUAL_TRUECOLOR;
+ fix->xpanstep = 1;
+ fix->ypanstep = 1;
+
+ return 0;
+}
+
+/*
+ * Set framebuffer parameters and change the operating mode.
+ *
+ * @param info framebuffer information pointer
+ */
+static int mxcfb_set_par(struct fb_info *fbi)
+{
+ int retval;
+ bool use_iram = false;
+ u32 mem_len;
+ ipu_di_signal_cfg_t sig_cfg;
+ ipu_panel_t mode = IPU_PANEL_TFT;
+ struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)fbi->par;
+
+ if ((retval = wait_event_interruptible(mxcfb_drv_data.suspend_wq,
+ (mxcfb_drv_data.suspended ==
+ false))) < 0) {
+ return retval;
+ }
+
+ ipu_disable_irq(mxc_fbi->ipu_ch_irq);
+ ipu_disable_channel(mxc_fbi->ipu_ch, true);
+ ipu_uninit_channel(mxc_fbi->ipu_ch);
+ ipu_clear_irq(mxc_fbi->ipu_ch_irq);
+ mxcfb_set_fix(fbi);
+
+ mem_len = fbi->var.yres_virtual * fbi->fix.line_length;
+ if (mem_len > fbi->fix.smem_len) {
+ if (fbi->fix.smem_start)
+ mxcfb_unmap_video_memory(fbi);
+
+#ifdef CONFIG_FB_MXC_INTERNAL_MEM
+ if (mxc_fbi->ipu_ch == MEM_SDC_BG) {
+ use_iram = true;
+ }
+#endif
+ if (mxcfb_map_video_memory(fbi, use_iram) < 0)
+ return -ENOMEM;
+ }
+
+ ipu_init_channel(mxc_fbi->ipu_ch, NULL);
+
+ /* Clear the screen */
+ memset((char *)fbi->screen_base, 0, fbi->fix.smem_len);
+
+ if (mxc_fbi->ipu_ch == MEM_SDC_BG) {
+ memset(&sig_cfg, 0, sizeof(sig_cfg));
+ if (fbi->var.sync & FB_SYNC_HOR_HIGH_ACT)
+ sig_cfg.Hsync_pol = true;
+ if (fbi->var.sync & FB_SYNC_VERT_HIGH_ACT)
+ sig_cfg.Vsync_pol = true;
+ if (fbi->var.sync & FB_SYNC_CLK_INVERT)
+ sig_cfg.clk_pol = true;
+ if (fbi->var.sync & FB_SYNC_DATA_INVERT)
+ sig_cfg.data_pol = true;
+ if (fbi->var.sync & FB_SYNC_OE_ACT_HIGH)
+ sig_cfg.enable_pol = true;
+ if (fbi->var.sync & FB_SYNC_CLK_IDLE_EN)
+ sig_cfg.clkidle_en = true;
+ if (fbi->var.sync & FB_SYNC_SHARP_MODE)
+ mode = IPU_PANEL_SHARP_TFT;
+
+ dev_dbg(fbi->device, "pixclock = %ul Hz\n",
+ (u32) (PICOS2KHZ(fbi->var.pixclock) * 1000UL));
+
+ if (ipu_sdc_init_panel(mode,
+ (PICOS2KHZ(fbi->var.pixclock)) * 1000UL,
+ fbi->var.xres, fbi->var.yres,
+ (fbi->var.sync & FB_SYNC_SWAP_RGB) ?
+ IPU_PIX_FMT_BGR666 : IPU_PIX_FMT_RGB666,
+ fbi->var.left_margin,
+ fbi->var.hsync_len,
+ fbi->var.right_margin,
+ fbi->var.upper_margin,
+ fbi->var.vsync_len,
+ fbi->var.lower_margin, sig_cfg) != 0) {
+ dev_err(fbi->device,
+ "mxcfb: Error initializing panel.\n");
+ return -EINVAL;
+ }
+
+ fbi->mode =
+ (struct fb_videomode *)fb_match_mode(&fbi->var,
+ &fbi->modelist);
+ }
+
+ ipu_disp_set_window_pos(mxc_fbi->ipu_ch, 0, 0);
+
+ mxc_fbi->cur_ipu_buf = 1;
+ sema_init(&mxc_fbi->flip_sem, 1);
+ fbi->var.xoffset = fbi->var.yoffset = 0;
+
+ retval = ipu_init_channel_buffer(mxc_fbi->ipu_ch, IPU_INPUT_BUFFER,
+ bpp_to_pixfmt(fbi->var.bits_per_pixel),
+ fbi->var.xres, fbi->var.yres,
+ fbi->var.xres_virtual,
+ IPU_ROTATE_NONE,
+ fbi->fix.smem_start +
+ (fbi->fix.line_length * fbi->var.yres),
+ fbi->fix.smem_start,
+ 0, 0);
+ if (retval) {
+ dev_err(fbi->device,
+ "ipu_init_channel_buffer error %d\n", retval);
+ return retval;
+ }
+
+ if (mxc_fbi->blank == FB_BLANK_UNBLANK) {
+ ipu_enable_channel(mxc_fbi->ipu_ch);
+ }
+
+ return 0;
+}
+
+/*
+ * Check framebuffer variable parameters and adjust to valid values.
+ *
+ * @param var framebuffer variable parameters
+ *
+ * @param info framebuffer information pointer
+ */
+static int mxcfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
+{
+ u32 vtotal;
+ u32 htotal;
+
+ if (var->xres_virtual < var->xres)
+ var->xres_virtual = var->xres;
+ if (var->yres_virtual < var->yres)
+ var->yres_virtual = var->yres;
+
+#ifdef CONFIG_FB_MXC_INTERNAL_MEM
+ if ((info->fix.smem_start == FB_RAM_BASE_ADDR) &&
+ ((var->yres_virtual * var->xres_virtual * var->bits_per_pixel / 8) >
+ FB_RAM_SIZE)) {
+ return -EINVAL;
+ }
+#endif
+
+ if ((var->bits_per_pixel != 32) && (var->bits_per_pixel != 24) &&
+ (var->bits_per_pixel != 16)) {
+ var->bits_per_pixel = default_bpp;
+ }
+
+ switch (var->bits_per_pixel) {
+ case 16:
+ var->red.length = 5;
+ var->red.offset = 11;
+ var->red.msb_right = 0;
+
+ var->green.length = 6;
+ var->green.offset = 5;
+ var->green.msb_right = 0;
+
+ var->blue.length = 5;
+ var->blue.offset = 0;
+ var->blue.msb_right = 0;
+
+ var->transp.length = 0;
+ var->transp.offset = 0;
+ var->transp.msb_right = 0;
+ break;
+ case 24:
+ var->red.length = 8;
+ var->red.offset = 16;
+ var->red.msb_right = 0;
+
+ var->green.length = 8;
+ var->green.offset = 8;
+ var->green.msb_right = 0;
+
+ var->blue.length = 8;
+ var->blue.offset = 0;
+ var->blue.msb_right = 0;
+
+ var->transp.length = 0;
+ var->transp.offset = 0;
+ var->transp.msb_right = 0;
+ break;
+ case 32:
+ var->red.length = 8;
+ var->red.offset = 16;
+ var->red.msb_right = 0;
+
+ var->green.length = 8;
+ var->green.offset = 8;
+ var->green.msb_right = 0;
+
+ var->blue.length = 8;
+ var->blue.offset = 0;
+ var->blue.msb_right = 0;
+
+ var->transp.length = 8;
+ var->transp.offset = 24;
+ var->transp.msb_right = 0;
+ break;
+ }
+
+ if (var->pixclock < 1000) {
+ htotal = var->xres + var->right_margin + var->hsync_len +
+ var->left_margin;
+ vtotal = var->yres + var->lower_margin + var->vsync_len +
+ var->upper_margin;
+ var->pixclock = (vtotal * htotal * 6UL) / 100UL;
+ var->pixclock = KHZ2PICOS(var->pixclock);
+ dev_dbg(info->device,
+ "pixclock set for 60Hz refresh = %u ps\n",
+ var->pixclock);
+ }
+
+ var->height = -1;
+ var->width = -1;
+ var->grayscale = 0;
+
+ /* nonstd used for YUV formats, but only RGB supported */
+ var->nonstd = 0;
+
+ return 0;
+}
+
+static inline u_int _chan_to_field(u_int chan, struct fb_bitfield *bf)
+{
+ chan &= 0xffff;
+ chan >>= 16 - bf->length;
+ return chan << bf->offset;
+}
+static int
+mxcfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
+ u_int trans, struct fb_info *fbi)
+{
+ unsigned int val;
+ int ret = 1;
+
+ /*
+ * If greyscale is true, then we convert the RGB value
+ * to greyscale no matter what visual we are using.
+ */
+ if (fbi->var.grayscale)
+ red = green = blue = (19595 * red + 38470 * green +
+ 7471 * blue) >> 16;
+ switch (fbi->fix.visual) {
+ case FB_VISUAL_TRUECOLOR:
+ /*
+ * 16-bit True Colour. We encode the RGB value
+ * according to the RGB bitfield information.
+ */
+ if (regno < 16) {
+ u32 *pal = fbi->pseudo_palette;
+
+ val = _chan_to_field(red, &fbi->var.red);
+ val |= _chan_to_field(green, &fbi->var.green);
+ val |= _chan_to_field(blue, &fbi->var.blue);
+
+ pal[regno] = val;
+ ret = 0;
+ }
+ break;
+
+ case FB_VISUAL_STATIC_PSEUDOCOLOR:
+ case FB_VISUAL_PSEUDOCOLOR:
+ break;
+ }
+
+ return ret;
+}
+
+/*
+ * Function to handle custom ioctls for MXC framebuffer.
+ *
+ * @param inode inode struct
+ *
+ * @param file file struct
+ *
+ * @param cmd Ioctl command to handle
+ *
+ * @param arg User pointer to command arguments
+ *
+ * @param fbi framebuffer information pointer
+ */
+static int mxcfb_ioctl(struct fb_info *fbi, unsigned int cmd, unsigned long arg)
+{
+ int retval = 0;
+
+ if ((retval = wait_event_interruptible(mxcfb_drv_data.suspend_wq,
+ (mxcfb_drv_data.suspended ==
+ false))) < 0) {
+ return retval;
+ }
+
+ switch (cmd) {
+ case MXCFB_SET_GBL_ALPHA:
+ {
+ struct mxcfb_gbl_alpha ga;
+ if (copy_from_user(&ga, (void *)arg, sizeof(ga))) {
+ retval = -EFAULT;
+ break;
+ }
+ retval =
+ ipu_sdc_set_global_alpha((bool) ga.enable,
+ ga.alpha);
+ dev_dbg(fbi->device, "Set global alpha to %d\n",
+ ga.alpha);
+ break;
+ }
+ case MXCFB_SET_CLR_KEY:
+ {
+ struct mxcfb_color_key key;
+ if (copy_from_user(&key, (void *)arg, sizeof(key))) {
+ retval = -EFAULT;
+ break;
+ }
+ retval = ipu_sdc_set_color_key(MEM_SDC_BG, key.enable,
+ key.color_key);
+ dev_dbg(fbi->device, "Set color key to 0x%08X\n",
+ key.color_key);
+ break;
+ }
+ case MXCFB_WAIT_FOR_VSYNC:
+ {
+#ifndef CONFIG_ARCH_MX3
+ mxcfb_drv_data.vsync_flag = 0;
+ ipu_enable_irq(IPU_IRQ_SDC_DISP3_VSYNC);
+ if (!wait_event_interruptible_timeout
+ (mxcfb_drv_data.vsync_wq,
+ mxcfb_drv_data.vsync_flag != 0, 1 * HZ)) {
+ dev_err(fbi->device,
+ "MXCFB_WAIT_FOR_VSYNC: timeout\n");
+ retval = -ETIME;
+ break;
+ } else if (signal_pending(current)) {
+ dev_err(fbi->device,
+ "MXCFB_WAIT_FOR_VSYNC: interrupt received\n");
+ retval = -ERESTARTSYS;
+ break;
+ }
+#endif
+ break;
+ }
+#ifdef CONFIG_FB_MXC_TVOUT
+ case ENCODER_GET_CAPABILITIES:
+ {
+ struct video_encoder_capability cap;
+
+ if ((retval = fs453_ioctl(cmd, &cap)))
+ break;
+
+ if (copy_to_user((void *)arg, &cap, sizeof(cap)))
+ retval = -EFAULT;
+ break;
+ }
+ case ENCODER_SET_NORM:
+ {
+ unsigned long mode;
+ char *smode;
+ struct fb_var_screeninfo var;
+
+ if (copy_from_user(&mode, (void *)arg, sizeof(mode))) {
+ retval = -EFAULT;
+ break;
+ }
+ if ((retval = fs453_ioctl(cmd, &mode)))
+ break;
+
+ if (mode == VIDEO_ENCODER_PAL)
+ smode = MODE_PAL;
+ else if (mode == VIDEO_ENCODER_NTSC)
+ smode = MODE_NTSC;
+ else
+ smode = MODE_VGA;
+
+ var = fbi->var;
+ var.nonstd = 0;
+ retval = fb_find_mode(&var, fbi, smode, mxcfb_modedb,
+ mxcfb_modedb_sz, NULL,
+ default_bpp);
+ if ((retval != 1) && (retval != 2)) { /* specified mode not found */
+ retval = -ENODEV;
+ break;
+ }
+
+ fbi->var = var;
+ fb_mode = smode;
+ retval = mxcfb_set_par(fbi);
+ break;
+ }
+ case ENCODER_SET_INPUT:
+ case ENCODER_SET_OUTPUT:
+ case ENCODER_ENABLE_OUTPUT:
+ {
+ unsigned long varg;
+
+ if (copy_from_user(&varg, (void *)arg, sizeof(varg))) {
+ retval = -EFAULT;
+ break;
+ }
+ retval = fs453_ioctl(cmd, &varg);
+ break;
+ }
+#endif
+ default:
+ retval = -EINVAL;
+ }
+ return retval;
+}
+
+/*
+ * Function to handle custom ioctls for MXC framebuffer.
+ *
+ * @param inode inode struct
+ *
+ * @param file file struct
+ *
+ * @param cmd Ioctl command to handle
+ *
+ * @param arg User pointer to command arguments
+ *
+ * @param fbi framebuffer information pointer
+ */
+static int mxcfb_ioctl_ovl(struct fb_info *fbi, unsigned int cmd,
+ unsigned long arg)
+{
+ int retval = 0;
+ int __user *argp = (void __user *)arg;
+ struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)fbi->par;
+
+ if ((retval = wait_event_interruptible(mxcfb_drv_data.suspend_wq,
+ (mxcfb_drv_data.suspended ==
+ false))) < 0) {
+ return retval;
+ }
+
+ switch (cmd) {
+ case FBIO_ALLOC:
+ {
+ int size;
+ struct mxcfb_alloc_list *mem;
+
+ mem = kzalloc(sizeof(*mem), GFP_KERNEL);
+ if (mem == NULL)
+ return -ENOMEM;
+
+ if (get_user(size, argp))
+ return -EFAULT;
+
+ mem->size = PAGE_ALIGN(size);
+
+ mem->cpu_addr = dma_alloc_coherent(fbi->device, size,
+ &mem->phy_addr,
+ GFP_DMA);
+ if (mem->cpu_addr == NULL) {
+ kfree(mem);
+ return -ENOMEM;
+ }
+
+ list_add(&mem->list, &fb_alloc_list);
+
+ dev_dbg(fbi->device, "allocated %d bytes @ 0x%08X\n",
+ mem->size, mem->phy_addr);
+
+ if (put_user(mem->phy_addr, argp))
+ return -EFAULT;
+
+ break;
+ }
+ case FBIO_FREE:
+ {
+ unsigned long offset;
+ struct mxcfb_alloc_list *mem;
+
+ if (get_user(offset, argp))
+ return -EFAULT;
+
+ retval = -EINVAL;
+ list_for_each_entry(mem, &fb_alloc_list, list) {
+ if (mem->phy_addr == offset) {
+ list_del(&mem->list);
+ dma_free_coherent(fbi->device,
+ mem->size,
+ mem->cpu_addr,
+ mem->phy_addr);
+ kfree(mem);
+ retval = 0;
+ break;
+ }
+ }
+
+ break;
+ }
+ case MXCFB_SET_OVERLAY_POS:
+ {
+ struct mxcfb_pos pos;
+ if (copy_from_user(&pos, (void *)arg, sizeof(pos))) {
+ retval = -EFAULT;
+ break;
+ }
+ retval = ipu_disp_set_window_pos(mxc_fbi->ipu_ch,
+ pos.x, pos.y);
+ break;
+ }
+ default:
+ retval = -EINVAL;
+ }
+ return retval;
+}
+
+/*
+ * mxcfb_blank():
+ * Blank the display.
+ */
+static int mxcfb_blank(int blank, struct fb_info *info)
+{
+ int retval;
+ struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)info->par;
+
+ dev_dbg(info->device, "blank = %d\n", blank);
+
+ if (mxc_fbi->blank == blank)
+ return 0;
+
+ if ((retval = wait_event_interruptible(mxcfb_drv_data.suspend_wq,
+ (mxcfb_drv_data.suspended ==
+ false))) < 0) {
+ return retval;
+ }
+
+ mxc_fbi->blank = blank;
+
+ switch (blank) {
+ case FB_BLANK_POWERDOWN:
+ case FB_BLANK_VSYNC_SUSPEND:
+ case FB_BLANK_HSYNC_SUSPEND:
+ case FB_BLANK_NORMAL:
+ ipu_disable_channel(MEM_SDC_BG, true);
+ gpio_lcd_inactive();
+#ifdef CONFIG_FB_MXC_TVOUT
+ if (fb_mode) {
+ int enable = 0;
+
+ if ((strcmp(fb_mode, MODE_VGA) == 0)
+ || (strcmp(fb_mode, MODE_NTSC) == 0)
+ || (strcmp(fb_mode, MODE_PAL) == 0))
+ fs453_ioctl(ENCODER_ENABLE_OUTPUT, &enable);
+ }
+#endif
+ break;
+ case FB_BLANK_UNBLANK:
+ gpio_lcd_active();
+ ipu_enable_channel(MEM_SDC_BG);
+#ifdef CONFIG_FB_MXC_TVOUT
+ if (fb_mode) {
+ unsigned long mode = 0;
+
+ if (strcmp(fb_mode, MODE_VGA) == 0)
+ mode = VIDEO_ENCODER_VGA;
+ else if (strcmp(fb_mode, MODE_NTSC) == 0)
+ mode = VIDEO_ENCODER_NTSC;
+ else if (strcmp(fb_mode, MODE_PAL) == 0)
+ mode = VIDEO_ENCODER_PAL;
+ if (mode)
+ fs453_ioctl(ENCODER_SET_NORM, &mode);
+ }
+#endif
+ break;
+ }
+ return 0;
+}
+
+/*
+ * mxcfb_blank_ovl():
+ * Blank the display.
+ */
+static int mxcfb_blank_ovl(int blank, struct fb_info *info)
+{
+ int retval;
+ struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)info->par;
+
+ dev_dbg(info->device, "ovl blank = %d\n", blank);
+
+ if (mxc_fbi->blank == blank)
+ return 0;
+
+ if ((retval = wait_event_interruptible(mxcfb_drv_data.suspend_wq,
+ (mxcfb_drv_data.suspended ==
+ false))) < 0) {
+ return retval;
+ }
+
+ mxc_fbi->blank = blank;
+
+ switch (blank) {
+ case FB_BLANK_POWERDOWN:
+ case FB_BLANK_VSYNC_SUSPEND:
+ case FB_BLANK_HSYNC_SUSPEND:
+ case FB_BLANK_NORMAL:
+ ipu_disable_channel(MEM_SDC_FG, true);
+ break;
+ case FB_BLANK_UNBLANK:
+ ipu_enable_channel(MEM_SDC_FG);
+ break;
+ }
+ return 0;
+}
+
+/*
+ * Pan or Wrap the Display
+ *
+ * This call looks only at xoffset, yoffset and the FB_VMODE_YWRAP flag
+ *
+ * @param var Variable screen buffer information
+ * @param info Framebuffer information pointer
+ */
+static int
+mxcfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info)
+{
+ struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)info->par;
+ unsigned long lock_flags = 0;
+ int retval;
+ u_int y_bottom;
+ unsigned long base;
+
+ if ((retval = wait_event_interruptible(mxcfb_drv_data.suspend_wq,
+ (mxcfb_drv_data.suspended ==
+ false))) < 0) {
+ return retval;
+ }
+
+ if (var->xoffset > 0) {
+ dev_dbg(info->device, "x panning not supported\n");
+ return -EINVAL;
+ }
+
+ if ((info->var.xoffset == var->xoffset) &&
+ (info->var.yoffset == var->yoffset)) {
+ return 0; // No change, do nothing
+ }
+
+ y_bottom = var->yoffset;
+
+ if (!(var->vmode & FB_VMODE_YWRAP)) {
+ y_bottom += var->yres;
+ }
+
+ if (y_bottom > info->var.yres_virtual) {
+ return -EINVAL;
+ }
+
+ base = (var->yoffset * var->xres_virtual + var->xoffset);
+ base *= (var->bits_per_pixel) / 8;
+ base += info->fix.smem_start;
+
+ down(&mxc_fbi->flip_sem);
+
+ spin_lock_irqsave(&mxc_fbi->fb_lock, lock_flags);
+
+ dev_dbg(info->device, "Updating SDC BG buf %d address=0x%08lX\n",
+ mxc_fbi->cur_ipu_buf, base);
+
+ mxc_fbi->cur_ipu_buf = !mxc_fbi->cur_ipu_buf;
+ if (ipu_update_channel_buffer(mxc_fbi->ipu_ch, IPU_INPUT_BUFFER,
+ mxc_fbi->cur_ipu_buf, base) == 0) {
+ ipu_select_buffer(mxc_fbi->ipu_ch, IPU_INPUT_BUFFER,
+ mxc_fbi->cur_ipu_buf);
+ ipu_clear_irq(mxc_fbi->ipu_ch_irq);
+ ipu_enable_irq(mxc_fbi->ipu_ch_irq);
+ } else {
+ dev_err(info->device,
+ "Error updating SDC buf %d to address=0x%08lX\n",
+ mxc_fbi->cur_ipu_buf, base);
+ }
+
+ spin_unlock_irqrestore(&mxc_fbi->fb_lock, lock_flags);
+
+ dev_dbg(info->device, "Update complete\n");
+
+ info->var.xoffset = var->xoffset;
+ info->var.yoffset = var->yoffset;
+
+ if (var->vmode & FB_VMODE_YWRAP) {
+ info->var.vmode |= FB_VMODE_YWRAP;
+ } else {
+ info->var.vmode &= ~FB_VMODE_YWRAP;
+ }
+
+ return 0;
+}
+
+/*
+ * Function to handle custom mmap for MXC framebuffer.
+ *
+ * @param fbi framebuffer information pointer
+ *
+ * @param vma Pointer to vm_area_struct
+ */
+static int mxcfb_mmap(struct fb_info *fbi, struct vm_area_struct *vma)
+{
+ bool found = false;
+ u32 len;
+ unsigned long offset = vma->vm_pgoff << PAGE_SHIFT;
+ struct mxcfb_alloc_list *mem;
+
+ if (offset < fbi->fix.smem_len) {
+ /* mapping framebuffer memory */
+ len = fbi->fix.smem_len - offset;
+ vma->vm_pgoff = (fbi->fix.smem_start + offset) >> PAGE_SHIFT;
+ } else {
+ list_for_each_entry(mem, &fb_alloc_list, list) {
+ if (offset == mem->phy_addr) {
+ found = true;
+ len = mem->size;
+ break;
+ }
+ }
+ if (!found) {
+ return -EINVAL;
+ }
+ }
+
+ len = PAGE_ALIGN(len);
+ if (vma->vm_end - vma->vm_start > len) {
+ return -EINVAL;
+ }
+
+ /* make buffers write-thru cacheable */
+ vma->vm_page_prot = __pgprot(pgprot_val(vma->vm_page_prot) &
+ ~L_PTE_BUFFERABLE);
+
+ vma->vm_flags |= VM_IO | VM_RESERVED;
+
+ if (remap_pfn_range(vma, vma->vm_start, vma->vm_pgoff,
+ vma->vm_end - vma->vm_start, vma->vm_page_prot)) {
+ dev_dbg(fbi->device, "mmap remap_pfn_range failed\n");
+ return -ENOBUFS;
+
+ }
+
+ return 0;
+}
+
+/*!
+ * This structure contains the pointers to the control functions that are
+ * invoked by the core framebuffer driver to perform operations like
+ * blitting, rectangle filling, copy regions and cursor definition.
+ */
+static struct fb_ops mxcfb_ops = {
+ .owner = THIS_MODULE,
+ .fb_set_par = mxcfb_set_par,
+ .fb_check_var = mxcfb_check_var,
+ .fb_setcolreg = mxcfb_setcolreg,
+ .fb_pan_display = mxcfb_pan_display,
+ .fb_ioctl = mxcfb_ioctl,
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+ .fb_blank = mxcfb_blank,
+};
+
+static struct fb_ops mxcfb_ovl_ops = {
+ .owner = THIS_MODULE,
+ .fb_set_par = mxcfb_set_par,
+ .fb_check_var = mxcfb_check_var,
+ .fb_setcolreg = mxcfb_setcolreg,
+ .fb_pan_display = mxcfb_pan_display,
+ .fb_ioctl = mxcfb_ioctl_ovl,
+ .fb_mmap = mxcfb_mmap,
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+ .fb_blank = mxcfb_blank_ovl,
+};
+
+static irqreturn_t mxcfb_vsync_irq_handler(int irq, void *dev_id)
+{
+ struct mxcfb_data *fb_data = dev_id;
+
+ ipu_disable_irq(irq);
+
+ fb_data->vsync_flag = 1;
+ wake_up_interruptible(&fb_data->vsync_wq);
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t mxcfb_irq_handler(int irq, void *dev_id)
+{
+ struct fb_info *fbi = dev_id;
+ struct mxcfb_info *mxc_fbi = fbi->par;
+
+ up(&mxc_fbi->flip_sem);
+ ipu_disable_irq(irq);
+ return IRQ_HANDLED;
+}
+
+#ifdef CONFIG_PM
+/*
+ * Power management hooks. Note that we won't be called from IRQ context,
+ * unlike the blank functions above, so we may sleep.
+ */
+
+/*
+ * Suspends the framebuffer and blanks the screen. Power management support
+ */
+static int mxcfb_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct mxcfb_data *drv_data = platform_get_drvdata(pdev);
+ struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)drv_data->fbi->par;
+ struct mxcfb_info *mxc_fbi_ovl =
+ (struct mxcfb_info *)drv_data->fbi_ovl->par;
+#ifdef CONFIG_FB_MXC_LOW_PWR_DISPLAY
+ void *fbmem;
+#endif
+
+ drv_data->suspended = true;
+
+ acquire_console_sem();
+ fb_set_suspend(drv_data->fbi, 1);
+ fb_set_suspend(drv_data->fbi_ovl, 1);
+ release_console_sem();
+
+ if (mxc_fbi_ovl->blank == FB_BLANK_UNBLANK) {
+ ipu_disable_channel(MEM_SDC_FG, true);
+ }
+
+ if (mxc_fbi->blank == FB_BLANK_UNBLANK) {
+#ifdef CONFIG_FB_MXC_LOW_PWR_DISPLAY
+ if (drv_data->fbi->fix.smem_start != FB_RAM_BASE_ADDR) {
+ fbmem = ioremap(FB_RAM_BASE_ADDR, FB_RAM_SIZE);
+ memcpy(fbmem, drv_data->fbi->screen_base, FB_RAM_SIZE);
+ iounmap(fbmem);
+ mxc_fbi->cur_ipu_buf = !mxc_fbi->cur_ipu_buf;
+ ipu_update_channel_buffer(MEM_SDC_BG, IPU_INPUT_BUFFER,
+ mxc_fbi->cur_ipu_buf,
+ FB_RAM_BASE_ADDR);
+ ipu_select_buffer(MEM_SDC_BG, IPU_INPUT_BUFFER,
+ mxc_fbi->cur_ipu_buf);
+ }
+ ipu_lowpwr_display_enable();
+#else
+ ipu_disable_channel(MEM_SDC_BG, true);
+ gpio_lcd_inactive();
+#endif
+#ifdef CONFIG_FB_MXC_TVOUT
+ if (fb_mode) {
+ int enable = 0;
+
+ if ((strcmp(fb_mode, MODE_VGA) == 0)
+ || (strcmp(fb_mode, MODE_NTSC) == 0)
+ || (strcmp(fb_mode, MODE_PAL) == 0))
+ fs453_ioctl(ENCODER_ENABLE_OUTPUT, &enable);
+ }
+#endif
+ }
+ return 0;
+}
+
+/*
+ * Resumes the framebuffer and unblanks the screen. Power management support
+ */
+static int mxcfb_resume(struct platform_device *pdev)
+{
+ struct mxcfb_data *drv_data = platform_get_drvdata(pdev);
+ struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)drv_data->fbi->par;
+ struct mxcfb_info *mxc_fbi_ovl =
+ (struct mxcfb_info *)drv_data->fbi_ovl->par;
+
+ drv_data->suspended = false;
+
+ if (mxc_fbi->blank == FB_BLANK_UNBLANK) {
+#ifdef CONFIG_FB_MXC_LOW_PWR_DISPLAY
+ ipu_lowpwr_display_disable();
+ if (drv_data->fbi->fix.smem_start != FB_RAM_BASE_ADDR) {
+ mxc_fbi->cur_ipu_buf = !mxc_fbi->cur_ipu_buf;
+ ipu_update_channel_buffer(MEM_SDC_BG, IPU_INPUT_BUFFER,
+ mxc_fbi->cur_ipu_buf,
+ drv_data->fbi->fix.
+ smem_start);
+ ipu_select_buffer(MEM_SDC_BG, IPU_INPUT_BUFFER,
+ mxc_fbi->cur_ipu_buf);
+ }
+#else
+ gpio_lcd_active();
+ ipu_enable_channel(MEM_SDC_BG);
+#endif
+#ifdef CONFIG_FB_MXC_TVOUT
+ if (fb_mode) {
+ u32 mode = 0;
+
+ if (strcmp(fb_mode, MODE_VGA) == 0)
+ mode = VIDEO_ENCODER_VGA;
+ else if (strcmp(fb_mode, MODE_NTSC) == 0)
+ mode = VIDEO_ENCODER_NTSC;
+ else if (strcmp(fb_mode, MODE_PAL) == 0)
+ mode = VIDEO_ENCODER_PAL;
+ if (mode)
+ fs453_ioctl(ENCODER_SET_NORM, &mode);
+ }
+#endif
+ }
+
+ if (mxc_fbi_ovl->blank == FB_BLANK_UNBLANK) {
+ ipu_enable_channel(MEM_SDC_FG);
+ }
+
+ acquire_console_sem();
+ fb_set_suspend(drv_data->fbi, 0);
+ fb_set_suspend(drv_data->fbi_ovl, 0);
+ release_console_sem();
+
+ wake_up_interruptible(&drv_data->suspend_wq);
+ return 0;
+}
+#else
+#define mxcfb_suspend NULL
+#define mxcfb_resume NULL
+#endif
+
+/*
+ * Main framebuffer functions
+ */
+
+/*!
+ * Allocates the DRAM memory for the frame buffer. This buffer is remapped
+ * into a non-cached, non-buffered, memory region to allow palette and pixel
+ * writes to occur without flushing the cache. Once this area is remapped,
+ * all virtual memory access to the video memory should occur at the new region.
+ *
+ * @param fbi framebuffer information pointer
+ *
+ * @param use_internal_ram flag on whether to use internal RAM for memory
+ *
+ * @return Error code indicating success or failure
+ */
+static int mxcfb_map_video_memory(struct fb_info *fbi, bool use_internal_ram)
+{
+ int retval = 0;
+
+#ifdef CONFIG_FB_MXC_INTERNAL_MEM
+ if (use_internal_ram) {
+ fbi->fix.smem_len = FB_RAM_SIZE;
+ fbi->fix.smem_start = FB_RAM_BASE_ADDR;
+ if (fbi->fix.smem_len <
+ (fbi->var.yres_virtual * fbi->fix.line_length)) {
+ dev_err(fbi->device,
+ "Not enough internal RAM for framebuffer configuration\n");
+ retval = -EINVAL;
+ goto err0;
+ }
+
+ if (request_mem_region(fbi->fix.smem_start, fbi->fix.smem_len,
+ fbi->device->driver->name) == NULL) {
+ dev_err(fbi->device,
+ "Unable to request internal RAM\n");
+ retval = -ENOMEM;
+ goto err0;
+ }
+
+ if (!(fbi->screen_base = ioremap(fbi->fix.smem_start,
+ fbi->fix.smem_len))) {
+ dev_err(fbi->device,
+ "Unable to map fb memory to virtual address\n");
+ release_mem_region(fbi->fix.smem_start,
+ fbi->fix.smem_len);
+ retval = -EIO;
+ goto err0;
+ }
+
+ iram_clk = clk_get(NULL, "iram_clk");
+ clk_enable(iram_clk);
+ } else
+#endif
+ {
+ fbi->fix.smem_len = fbi->var.yres_virtual *
+ fbi->fix.line_length;
+ fbi->screen_base =
+ dma_alloc_writecombine(fbi->device,
+ fbi->fix.smem_len,
+ (dma_addr_t *) & fbi->fix.smem_start,
+ GFP_DMA);
+
+ if (fbi->screen_base == 0) {
+ dev_err(fbi->device,
+ "Unable to allocate framebuffer memory\n");
+ retval = -EBUSY;
+ goto err0;
+ }
+ }
+
+ dev_dbg(fbi->device, "allocated fb @ paddr=0x%08X, size=%d.\n",
+ (uint32_t) fbi->fix.smem_start, fbi->fix.smem_len);
+
+ fbi->screen_size = fbi->fix.smem_len;
+
+ /* Clear the screen */
+ memset((char *)fbi->screen_base, 0, fbi->fix.smem_len);
+
+ return 0;
+
+ err0:
+ fbi->fix.smem_len = 0;
+ fbi->fix.smem_start = 0;
+ fbi->screen_base = NULL;
+ return retval;
+}
+
+/*!
+ * De-allocates the DRAM memory for the frame buffer.
+ *
+ * @param fbi framebuffer information pointer
+ *
+ * @return Error code indicating success or failure
+ */
+static int mxcfb_unmap_video_memory(struct fb_info *fbi)
+{
+#ifdef CONFIG_FB_MXC_INTERNAL_MEM
+ if (fbi->fix.smem_start == FB_RAM_BASE_ADDR) {
+ iounmap(fbi->screen_base);
+ release_mem_region(fbi->fix.smem_start, fbi->fix.smem_len);
+ fbi->fix.smem_start = 0;
+ fbi->fix.smem_len = 0;
+ clk_disable(iram_clk);
+ } else
+#endif
+ {
+ dma_free_writecombine(fbi->device, fbi->fix.smem_len,
+ fbi->screen_base, fbi->fix.smem_start);
+ }
+ fbi->screen_base = 0;
+ fbi->fix.smem_start = 0;
+ fbi->fix.smem_len = 0;
+ return 0;
+}
+
+/*!
+ * Initializes the framebuffer information pointer. After allocating
+ * sufficient memory for the framebuffer structure, the fields are
+ * filled with custom information passed in from the configurable
+ * structures. This includes information such as bits per pixel,
+ * color maps, screen width/height and RGBA offsets.
+ *
+ * @return Framebuffer structure initialized with our information
+ */
+static struct fb_info *mxcfb_init_fbinfo(struct device *dev, struct fb_ops *ops)
+{
+ struct fb_info *fbi;
+ struct mxcfb_info *mxcfbi;
+
+ /*
+ * Allocate sufficient memory for the fb structure
+ */
+ fbi = framebuffer_alloc(sizeof(struct mxcfb_info), dev);
+ if (!fbi)
+ return NULL;
+
+ mxcfbi = (struct mxcfb_info *)fbi->par;
+
+ fbi->var.activate = FB_ACTIVATE_NOW;
+
+ fbi->fbops = ops;
+ fbi->flags = FBINFO_FLAG_DEFAULT;
+ fbi->pseudo_palette = mxcfbi->pseudo_palette;
+
+ spin_lock_init(&mxcfbi->fb_lock);
+
+ /*
+ * Allocate colormap
+ */
+ fb_alloc_cmap(&fbi->cmap, 16, 0);
+
+ return fbi;
+}
+
+/*!
+ * Probe routine for the framebuffer driver. It is called during the
+ * driver binding process. The following functions are performed in
+ * this routine: Framebuffer initialization, Memory allocation and
+ * mapping, Framebuffer registration, IPU initialization.
+ *
+ * @return Appropriate error code to the kernel common code
+ */
+static int mxcfb_probe(struct platform_device *pdev)
+{
+ char *mode = pdev->dev.platform_data;
+ struct fb_info *fbi;
+ struct mxcfb_info *mxcfbi;
+ struct fb_info *fbi_ovl;
+ int ret = 0;
+
+ /*
+ * Initialize FB structures
+ */
+ fbi = mxcfb_init_fbinfo(&pdev->dev, &mxcfb_ops);
+ if (!fbi) {
+ ret = -ENOMEM;
+ goto err0;
+ }
+ mxcfbi = (struct mxcfb_info *)fbi->par;
+
+ mxcfbi->ipu_ch_irq = IPU_IRQ_SDC_BG_EOF;
+ mxcfbi->cur_ipu_buf = 0;
+ mxcfbi->ipu_ch = MEM_SDC_BG;
+
+ ipu_sdc_set_global_alpha(true, 0xFF);
+ ipu_sdc_set_color_key(MEM_SDC_BG, false, 0);
+
+ if (ipu_request_irq(IPU_IRQ_SDC_BG_EOF, mxcfb_irq_handler, 0,
+ MXCFB_NAME, fbi) != 0) {
+ dev_err(&pdev->dev, "Error registering BG irq handler.\n");
+ ret = -EBUSY;
+ goto err1;
+ }
+ ipu_disable_irq(IPU_IRQ_SDC_BG_EOF);
+
+ if (fb_mode == NULL) {
+ fb_mode = mode;
+ }
+
+ if (!fb_find_mode(&fbi->var, fbi, fb_mode, mxcfb_modedb,
+ mxcfb_modedb_sz, NULL, default_bpp)) {
+ ret = -EBUSY;
+ goto err2;
+ }
+ fb_videomode_to_modelist(mxcfb_modedb, mxcfb_modedb_sz, &fbi->modelist);
+
+ /* Default Y virtual size is 2x panel size */
+#ifndef CONFIG_FB_MXC_INTERNAL_MEM
+ fbi->var.yres_virtual = fbi->var.yres * 2;
+#endif
+
+ mxcfb_drv_data.fbi = fbi;
+ mxcfb_drv_data.backlight_level = 255;
+ mxcfb_drv_data.suspended = false;
+ init_waitqueue_head(&mxcfb_drv_data.suspend_wq);
+
+ mxcfbi->blank = FB_BLANK_NORMAL;
+ ret = mxcfb_set_par(fbi);
+ if (ret < 0) {
+ goto err2;
+ }
+ mxcfb_blank(FB_BLANK_UNBLANK, fbi);
+
+ /*
+ * Register framebuffer
+ */
+ ret = register_framebuffer(fbi);
+ if (ret < 0) {
+ goto err2;
+ }
+
+ /*
+ * Initialize Overlay FB structures
+ */
+ fbi_ovl = mxcfb_init_fbinfo(&pdev->dev, &mxcfb_ovl_ops);
+ if (!fbi_ovl) {
+ ret = -ENOMEM;
+ goto err3;
+ }
+ mxcfb_drv_data.fbi_ovl = fbi_ovl;
+ mxcfbi = (struct mxcfb_info *)fbi_ovl->par;
+
+ mxcfbi->ipu_ch_irq = IPU_IRQ_SDC_FG_EOF;
+ mxcfbi->cur_ipu_buf = 0;
+ mxcfbi->ipu_ch = MEM_SDC_FG;
+
+ if (ipu_request_irq(IPU_IRQ_SDC_FG_EOF, mxcfb_irq_handler, 0,
+ MXCFB_NAME, fbi_ovl) != 0) {
+ dev_err(fbi->device, "Error registering FG irq handler.\n");
+ ret = -EBUSY;
+ goto err4;
+ }
+ ipu_disable_irq(mxcfbi->ipu_ch_irq);
+
+ /* Default Y virtual size is 2x panel size */
+ fbi_ovl->var = fbi->var;
+ fbi_ovl->var.yres_virtual = fbi->var.yres * 2;
+
+ /* Overlay is blanked by default */
+ mxcfbi->blank = FB_BLANK_NORMAL;
+
+ ret = mxcfb_set_par(fbi_ovl);
+ if (ret < 0) {
+ goto err5;
+ }
+
+ /*
+ * Register overlay framebuffer
+ */
+ ret = register_framebuffer(fbi_ovl);
+ if (ret < 0) {
+ goto err5;
+ }
+
+ platform_set_drvdata(pdev, &mxcfb_drv_data);
+
+ init_waitqueue_head(&mxcfb_drv_data.vsync_wq);
+ if (!cpu_is_mx31() && !cpu_is_mx32()) {
+ if ((ret = ipu_request_irq(IPU_IRQ_SDC_DISP3_VSYNC,
+ mxcfb_vsync_irq_handler,
+ 0, MXCFB_NAME,
+ &mxcfb_drv_data)) < 0) {
+ goto err6;
+ }
+ ipu_disable_irq(IPU_IRQ_SDC_DISP3_VSYNC);
+ }
+
+ printk(KERN_INFO "mxcfb: fb registered, using mode %s\n", fb_mode);
+ return 0;
+
+ err6:
+ unregister_framebuffer(fbi_ovl);
+ err5:
+ ipu_free_irq(IPU_IRQ_SDC_FG_EOF, fbi_ovl);
+ err4:
+ fb_dealloc_cmap(&fbi_ovl->cmap);
+ framebuffer_release(fbi_ovl);
+ err3:
+ unregister_framebuffer(fbi);
+ err2:
+ ipu_free_irq(IPU_IRQ_SDC_BG_EOF, fbi);
+ err1:
+ fb_dealloc_cmap(&fbi->cmap);
+ framebuffer_release(fbi);
+ err0:
+ printk(KERN_ERR "mxcfb: failed to register fb\n");
+ return ret;
+}
+
+/*!
+ * This structure contains pointers to the power management callback functions.
+ */
+static struct platform_driver mxcfb_driver = {
+ .driver = {
+ .name = MXCFB_NAME,
+ },
+ .probe = mxcfb_probe,
+ .suspend = mxcfb_suspend,
+ .resume = mxcfb_resume,
+};
+
+/*
+ * Parse user specified options (`video=trident:')
+ * example:
+ * video=trident:800x600,bpp=16,noaccel
+ */
+int mxcfb_setup(char *options)
+{
+ char *opt;
+ if (!options || !*options)
+ return 0;
+ while ((opt = strsep(&options, ",")) != NULL) {
+ if (!*opt)
+ continue;
+ if (!strncmp(opt, "bpp=", 4))
+ default_bpp = simple_strtoul(opt + 4, NULL, 0);
+ else
+ fb_mode = opt;
+ }
+ return 0;
+}
+
+/*!
+ * Main entry function for the framebuffer. The function registers the power
+ * management callback functions with the kernel and also registers the MXCFB
+ * callback functions with the core Linux framebuffer driver \b fbmem.c
+ *
+ * @return Error code indicating success or failure
+ */
+int __init mxcfb_init(void)
+{
+ int ret = 0;
+#ifndef MODULE
+ char *option = NULL;
+#endif
+
+#ifndef MODULE
+ if (fb_get_options("mxcfb", &option))
+ return -ENODEV;
+ mxcfb_setup(option);
+#endif
+
+ ret = platform_driver_register(&mxcfb_driver);
+ return ret;
+}
+
+void mxcfb_exit(void)
+{
+ struct fb_info *fbi = mxcfb_drv_data.fbi;
+
+ if (fbi) {
+ mxcfb_unmap_video_memory(fbi);
+
+ if (&fbi->cmap)
+ fb_dealloc_cmap(&fbi->cmap);
+
+ unregister_framebuffer(fbi);
+ framebuffer_release(fbi);
+ }
+
+ fbi = mxcfb_drv_data.fbi_ovl;
+ if (fbi) {
+ mxcfb_unmap_video_memory(fbi);
+
+ if (&fbi->cmap)
+ fb_dealloc_cmap(&fbi->cmap);
+
+ unregister_framebuffer(fbi);
+ framebuffer_release(fbi);
+ }
+#ifndef CONFIG_ARCH_MX3
+ ipu_free_irq(IPU_IRQ_SDC_DISP3_VSYNC, &mxcfb_drv_data);
+#endif
+
+ platform_driver_unregister(&mxcfb_driver);
+}
+
+module_init(mxcfb_init);
+module_exit(mxcfb_exit);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("MXC framebuffer driver");
+MODULE_LICENSE("GPL");
+MODULE_SUPPORTED_DEVICE("fb");
diff --git a/drivers/video/mxc/mxcfb_claa_wvga.c b/drivers/video/mxc/mxcfb_claa_wvga.c
new file mode 100644
index 000000000000..066a8b0e4d22
--- /dev/null
+++ b/drivers/video/mxc/mxcfb_claa_wvga.c
@@ -0,0 +1,234 @@
+/*
+ * Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/*!
+ * @defgroup Framebuffer Framebuffer Driver for SDC and ADC.
+ */
+
+/*!
+ * @file mxcfb_claa_wvga.c
+ *
+ * @brief MXC Frame buffer driver for SDC
+ *
+ * @ingroup Framebuffer
+ */
+
+/*!
+ * Include files
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/console.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/regulator.h>
+#include <mach/mxcfb.h>
+
+static void lcd_poweron(void);
+static void lcd_poweroff(void);
+
+static struct platform_device *plcd_dev;
+static struct regulator *io_reg;
+static struct regulator *core_reg;
+static int lcd_on;
+
+static struct fb_videomode video_modes[] = {
+ {
+ /* 800x480 @ 55 Hz , pixel clk @ 25MHz */
+ "CLAA-WVGA", 55, 800, 480, 40000, 80, 0, 10, 0, 20, 10,
+ FB_SYNC_OE_ACT_HIGH,
+ FB_VMODE_NONINTERLACED,
+ 0,},
+};
+
+static void lcd_init_fb(struct fb_info *info)
+{
+ struct fb_var_screeninfo var;
+
+ memset(&var, 0, sizeof(var));
+
+ fb_videomode_to_var(&var, &video_modes[0]);
+
+ var.activate = FB_ACTIVATE_ALL;
+ var.yres_virtual = var.yres * 2;
+
+ acquire_console_sem();
+ info->flags |= FBINFO_MISC_USEREVENT;
+ fb_set_var(info, &var);
+ info->flags &= ~FBINFO_MISC_USEREVENT;
+ release_console_sem();
+}
+
+static int lcd_fb_event(struct notifier_block *nb, unsigned long val, void *v)
+{
+ struct fb_event *event = v;
+
+ if (strcmp(event->info->fix.id, "DISP3 BG")) {
+ return 0;
+ }
+
+ switch (val) {
+ case FB_EVENT_FB_REGISTERED:
+ lcd_init_fb(event->info);
+ lcd_poweron();
+ break;
+ case FB_EVENT_BLANK:
+ if ((event->info->var.xres != 800) ||
+ (event->info->var.yres != 480)) {
+ break;
+ }
+ if (*((int *)event->data) == FB_BLANK_UNBLANK) {
+ lcd_poweron();
+ } else {
+ lcd_poweroff();
+ }
+ break;
+ }
+ return 0;
+}
+
+static struct notifier_block nb = {
+ .notifier_call = lcd_fb_event,
+};
+
+/*!
+ * This function is called whenever the SPI slave device is detected.
+ *
+ * @param spi the SPI slave device
+ *
+ * @return Returns 0 on SUCCESS and error on FAILURE.
+ */
+static int __devinit lcd_probe(struct platform_device *pdev)
+{
+ int i;
+ struct mxc_lcd_platform_data *plat = pdev->dev.platform_data;
+
+ if (plat) {
+ if (plat->reset)
+ plat->reset();
+
+ io_reg = regulator_get(&pdev->dev, plat->io_reg);
+ if (IS_ERR(io_reg))
+ io_reg = NULL;
+ core_reg = regulator_get(&pdev->dev, plat->core_reg);
+ if (!IS_ERR(core_reg)) {
+ regulator_set_voltage(io_reg, 1800000);
+ } else {
+ core_reg = NULL;
+ }
+ }
+
+ for (i = 0; i < num_registered_fb; i++) {
+ if (strcmp(registered_fb[i]->fix.id, "DISP3 BG") == 0) {
+ lcd_init_fb(registered_fb[i]);
+ fb_show_logo(registered_fb[i], 0);
+ lcd_poweron();
+ } else if (strcmp(registered_fb[i]->fix.id, "DISP3 FG") == 0) {
+ lcd_init_fb(registered_fb[i]);
+ }
+ }
+
+ fb_register_client(&nb);
+
+ plcd_dev = pdev;
+
+ return 0;
+}
+
+static int __devexit lcd_remove(struct platform_device *pdev)
+{
+ fb_unregister_client(&nb);
+ lcd_poweroff();
+ regulator_put(io_reg, &pdev->dev);
+ if (core_reg)
+ regulator_put(core_reg, &pdev->dev);
+
+ return 0;
+}
+
+#ifdef CONFIG_PM
+static int lcd_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ return 0;
+}
+
+static int lcd_resume(struct platform_device *pdev)
+{
+ return 0;
+}
+#else
+#define lcd_suspend NULL
+#define lcd_resume NULL
+#endif
+
+/*!
+ * platform driver structure for CLAA WVGA
+ */
+static struct platform_driver lcd_driver = {
+ .driver = {
+ .name = "lcd_claa"},
+ .probe = lcd_probe,
+ .remove = __devexit_p(lcd_remove),
+ .suspend = lcd_suspend,
+ .resume = lcd_resume,
+};
+
+/*
+ * Send Power On commands to L4F00242T03
+ *
+ */
+static void lcd_poweron(void)
+{
+ if (lcd_on)
+ return;
+
+ dev_dbg(&plcd_dev->dev, "turning on LCD\n");
+ if (core_reg)
+ regulator_enable(core_reg);
+ if (io_reg)
+ regulator_enable(io_reg);
+ lcd_on = 1;
+}
+
+/*
+ * Send Power Off commands to L4F00242T03
+ *
+ */
+static void lcd_poweroff(void)
+{
+ lcd_on = 0;
+ dev_dbg(&plcd_dev->dev, "turning off LCD\n");
+ regulator_disable(io_reg);
+ if (core_reg)
+ regulator_disable(core_reg);
+}
+
+static int __init claa_lcd_init(void)
+{
+ return platform_driver_register(&lcd_driver);
+}
+
+static void __exit claa_lcd_exit(void)
+{
+ platform_driver_unregister(&lcd_driver);
+}
+
+module_init(claa_lcd_init);
+module_exit(claa_lcd_exit);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("CLAA WVGA LCD init driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/mxc/mxcfb_epson.c b/drivers/video/mxc/mxcfb_epson.c
new file mode 100644
index 000000000000..25b05e4b1a0e
--- /dev/null
+++ b/drivers/video/mxc/mxcfb_epson.c
@@ -0,0 +1,1158 @@
+/*
+ * Copyright 2004-2009 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/*!
+ * @file mxcfb_epson.c
+ *
+ * @brief MXC Frame buffer driver for ADC
+ *
+ * @ingroup Framebuffer
+ */
+
+/*!
+ * Include files
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/errno.h>
+#include <linux/string.h>
+#include <linux/interrupt.h>
+#include <linux/slab.h>
+#include <linux/fb.h>
+#include <linux/delay.h>
+#include <linux/init.h>
+#include <linux/ioport.h>
+#include <linux/platform_device.h>
+#include <linux/dma-mapping.h>
+#include <mach/hardware.h>
+#include <asm/io.h>
+#include <asm/mach-types.h>
+#include <asm/uaccess.h>
+#include <mach/ipu.h>
+#include <mach/mxcfb.h>
+
+#define PARTIAL_REFRESH
+#define MXCFB_REFRESH_DEFAULT MXCFB_REFRESH_PARTIAL
+/*
+ * Driver name
+ */
+#define MXCFB_NAME "MXCFB_EPSON"
+
+#define MXCFB_SCREEN_TOP_OFFSET 0
+#define MXCFB_SCREEN_LEFT_OFFSET 2
+#define MXCFB_SCREEN_WIDTH 176
+#define MXCFB_SCREEN_HEIGHT 220
+
+/*!
+ * Enum defining Epson panel commands.
+ */
+enum {
+ DISON = 0xAF,
+ DISOFF = 0xAE,
+ DISCTL = 0xCA,
+ SD_CSET = 0x15,
+ SD_PSET = 0x75,
+ DATCTL = 0xBC,
+ SLPIN = 0x95,
+ SLPOUT = 0x94,
+ DISNOR = 0xA6,
+ RAMWR = 0x5C,
+ VOLCTR = 0xC6,
+ GCP16 = 0xCC,
+ GCP64 = 0xCB,
+};
+
+struct mxcfb_info {
+ int open_count;
+ int blank;
+ uint32_t disp_num;
+
+ u32 pseudo_palette[16];
+
+ int32_t cur_update_mode;
+ dma_addr_t alloc_start_paddr;
+ void *alloc_start_vaddr;
+ u32 alloc_size;
+ uint32_t snoop_window_size;
+};
+
+struct mxcfb_data {
+ struct fb_info *fbi;
+ volatile int32_t vsync_flag;
+ wait_queue_head_t vsync_wq;
+ wait_queue_head_t suspend_wq;
+ bool suspended;
+};
+
+static struct mxcfb_data mxcfb_drv_data;
+static unsigned long default_bpp = 16;
+
+void slcd_gpio_config(void);
+extern void gpio_lcd_active(void);
+static int mxcfb_blank(int blank, struct fb_info *fbi);
+
+static uint32_t bpp_to_pixfmt(int bpp)
+{
+ uint32_t pixfmt = 0;
+ switch (bpp) {
+ case 24:
+ pixfmt = IPU_PIX_FMT_BGR24;
+ break;
+ case 32:
+ pixfmt = IPU_PIX_FMT_BGR32;
+ break;
+ case 16:
+ pixfmt = IPU_PIX_FMT_RGB565;
+ break;
+ }
+ return pixfmt;
+}
+
+/*!
+ * This function sets display region in the Epson panel
+ *
+ * @param disp display panel to config
+ * @param x1 x-coordinate of one vertex.
+ * @param x2 x-coordinate of second vertex.
+ * @param y1 y-coordinate of one vertex.
+ * @param y2 y-coordinate of second vertex.
+ */
+void set_panel_region(int disp, uint32_t x1, uint32_t x2,
+ uint32_t y1, uint32_t y2)
+{
+ uint32_t param[8];
+
+ memset(param, 0, sizeof(uint32_t) * 8);
+ param[0] = x1;
+ param[2] = x2;
+ param[4] = y1;
+ param[6] = y2;
+
+ // SD_CSET
+ ipu_adc_write_cmd(disp, CMD, SD_CSET, param, 4);
+ // SD_PSET
+
+ ipu_adc_write_cmd(disp, CMD, SD_PSET, &(param[4]), 4);
+}
+
+/*!
+ * Function to create and initiate template command buffer for ADC. This
+ * template will be written to Panel memory.
+ */
+static void init_channel_template(int disp)
+{
+ /* template command buffer for ADC is 32 */
+ uint32_t tempCmd[TEMPLATE_BUF_SIZE];
+ uint32_t i = 0;
+
+ memset(tempCmd, 0, sizeof(uint32_t) * TEMPLATE_BUF_SIZE);
+ /* setup update display region */
+ /* whole the screen during init */
+ /*WRITE Y COORDINATE CMND */
+ tempCmd[i++] = ipu_adc_template_gen(WR_CMND, 0, SINGLE_STEP, SD_PSET);
+ /*WRITE Y START ADDRESS CMND LSB[22:8] */
+ tempCmd[i++] = ipu_adc_template_gen(WR_YADDR, 1, SINGLE_STEP, 0x01);
+ /*WRITE Y START ADDRESS CMND MSB[22:16] */
+ tempCmd[i++] = ipu_adc_template_gen(WR_YADDR, 1, SINGLE_STEP, 0x09);
+ /*WRITE Y STOP ADDRESS CMND LSB */
+ tempCmd[i++] = ipu_adc_template_gen(WR_CMND, 1, SINGLE_STEP,
+ MXCFB_SCREEN_HEIGHT - 1);
+ /*WRITE Y STOP ADDRESS CMND MSB */
+ tempCmd[i++] = ipu_adc_template_gen(WR_CMND, 1, SINGLE_STEP, 0);
+ /*WRITE X COORDINATE CMND */
+ tempCmd[i++] = ipu_adc_template_gen(WR_CMND, 0, SINGLE_STEP, SD_CSET);
+ /*WRITE X ADDRESS CMND LSB[7:0] */
+ tempCmd[i++] = ipu_adc_template_gen(WR_XADDR, 1, SINGLE_STEP, 0x01);
+ /*WRITE X ADDRESS CMND MSB[22:8] */
+ tempCmd[i++] = ipu_adc_template_gen(WR_CMND, 1, SINGLE_STEP, 0);
+ /*WRITE X STOP ADDRESS CMND LSB */
+ tempCmd[i++] = ipu_adc_template_gen(WR_CMND, 1, SINGLE_STEP,
+ MXCFB_SCREEN_WIDTH + 1);
+ /*WRITE X STOP ADDRESS CMND MSB */
+ tempCmd[i++] = ipu_adc_template_gen(WR_CMND, 1, SINGLE_STEP, 0);
+ /*WRITE MEMORY CMND MSB */
+ tempCmd[i++] = ipu_adc_template_gen(WR_CMND, 0, SINGLE_STEP, RAMWR);
+ /*WRITE DATA CMND and STP */
+ tempCmd[i++] = ipu_adc_template_gen(WR_DATA, 1, STOP, 0);
+
+ ipu_adc_write_template(disp, tempCmd, true);
+}
+
+/*!
+ * Function to initialize the panel. First it resets the panel and then
+ * initilizes panel.
+ */
+static void _init_panel(int disp)
+{
+ uint32_t cmd_param;
+ uint32_t i;
+
+ gpio_lcd_active();
+ slcd_gpio_config();
+
+ // DATCTL
+#ifdef CONFIG_FB_MXC_ASYNC_PANEL_IFC_16_BIT
+ // 16-bit 565 mode
+ cmd_param = 0x28;
+#else
+ // 8-bit 666 mode
+ cmd_param = 0x08;
+#endif
+ ipu_adc_write_cmd(disp, CMD, DATCTL, &cmd_param, 1);
+
+ // Sleep OUT
+ ipu_adc_write_cmd(disp, CMD, SLPOUT, 0, 0);
+
+ // Set display to white
+ // Setup page and column addresses
+ set_panel_region(disp, MXCFB_SCREEN_LEFT_OFFSET,
+ MXCFB_SCREEN_WIDTH + MXCFB_SCREEN_LEFT_OFFSET - 1,
+ 0, MXCFB_SCREEN_HEIGHT - 1);
+ // Do RAM write cmd
+ ipu_adc_write_cmd(disp, CMD, RAMWR, 0, 0);
+#ifdef CONFIG_FB_MXC_ASYNC_PANEL_IFC_16_BIT
+ for (i = 0; i < (MXCFB_SCREEN_WIDTH * MXCFB_SCREEN_HEIGHT); i++)
+#else
+ for (i = 0; i < (MXCFB_SCREEN_WIDTH * MXCFB_SCREEN_HEIGHT * 3); i++)
+#endif
+ ipu_adc_write_cmd(disp, DAT, 0xFFFF, 0, 0);
+
+ // Pause 80 ms
+ mdelay(80);
+
+ // Display ON
+ ipu_adc_write_cmd(disp, CMD, DISON, 0, 0);
+ // Pause 200 ms
+ mdelay(200);
+
+ pr_debug("initialized panel\n");
+}
+
+#ifdef PARTIAL_REFRESH
+static irqreturn_t mxcfb_sys2_eof_irq_handler(int irq, void *dev_id)
+{
+ ipu_channel_params_t params;
+ struct fb_info *fbi = dev_id;
+ struct mxcfb_info *mxc_fbi = fbi->par;
+ uint32_t stat[2], seg_size;
+ uint32_t lsb, msb;
+ uint32_t update_height, start_line, start_addr, end_line, end_addr;
+ uint32_t stride_pixels = (fbi->fix.line_length * 8) /
+ fbi->var.bits_per_pixel;
+
+ ipu_adc_get_snooping_status(&stat[0], &stat[1]);
+ //DPRINTK("snoop status = 0x%08X%08X\n", stat[1], stat[0]);
+
+ if (!stat[0] && !stat[1]) {
+ dev_err(fbi->device, "error no bus snooping bits set\n");
+ return IRQ_HANDLED;
+ }
+ ipu_disable_irq(IPU_IRQ_ADC_SYS2_EOF);
+
+ lsb = ffs(stat[0]);
+ if (lsb) {
+ lsb--;
+ } else {
+ lsb = ffs(stat[1]);
+ lsb += 32 - 1;
+ }
+ msb = fls(stat[1]);
+ if (msb) {
+ msb += 32;
+ } else {
+ msb = fls(stat[0]);
+ }
+
+ seg_size = mxc_fbi->snoop_window_size / 64;
+
+ start_addr = lsb * seg_size; // starting address offset
+ start_line = start_addr / fbi->fix.line_length;
+ start_addr = start_line * fbi->fix.line_length; // Addr aligned to line
+ start_addr += fbi->fix.smem_start;
+
+ end_addr = msb * seg_size; // ending address offset
+ end_line = end_addr / fbi->fix.line_length;
+ end_line++;
+
+ if (end_line > fbi->var.yres) {
+ end_line = fbi->var.yres;
+ }
+
+ update_height = end_line - start_line;
+ dev_dbg(fbi->device, "updating rows %d to %d, start addr = 0x%08X\n",
+ start_line, end_line, start_addr);
+
+ ipu_uninit_channel(ADC_SYS1);
+ params.adc_sys1.disp = mxc_fbi->disp_num;
+ params.adc_sys1.ch_mode = WriteTemplateNonSeq;
+ params.adc_sys1.out_left = MXCFB_SCREEN_LEFT_OFFSET;
+ params.adc_sys1.out_top = start_line;
+ ipu_init_channel(ADC_SYS1, &params);
+
+ ipu_init_channel_buffer(ADC_SYS1, IPU_INPUT_BUFFER,
+ bpp_to_pixfmt(fbi->var.bits_per_pixel),
+ MXCFB_SCREEN_WIDTH,
+ update_height,
+ stride_pixels,
+ IPU_ROTATE_NONE, (dma_addr_t) start_addr, 0,
+ 0, 0);
+ ipu_enable_channel(ADC_SYS1);
+ ipu_select_buffer(ADC_SYS1, IPU_INPUT_BUFFER, 0);
+ ipu_enable_irq(IPU_IRQ_ADC_SYS1_EOF);
+
+ return IRQ_HANDLED;
+}
+
+static irqreturn_t mxcfb_sys1_eof_irq_handler(int irq, void *dev_id)
+{
+ ipu_disable_irq(IPU_IRQ_ADC_SYS1_EOF);
+ ipu_disable_channel(ADC_SYS1, false);
+
+ ipu_enable_channel(ADC_SYS2);
+ ipu_enable_irq(IPU_IRQ_ADC_SYS2_EOF);
+
+ return IRQ_HANDLED;
+}
+#endif
+
+/*!
+ * Function to initialize Asynchronous Display Controller. It also initilizes
+ * the ADC System 1 channel. Configure ADC display 0 parallel interface for
+ * the panel.
+ *
+ * @param fbi framebuffer information pointer
+ */
+static void mxcfb_init_panel(struct fb_info *fbi)
+{
+ int msb;
+ int panel_stride;
+ ipu_channel_params_t params;
+ struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)fbi->par;
+
+#ifdef CONFIG_FB_MXC_ASYNC_PANEL_IFC_16_BIT
+ uint32_t pix_fmt = IPU_PIX_FMT_RGB565;
+ ipu_adc_sig_cfg_t sig = { 0, 0, 0, 0, 0, 0, 0, 0,
+ IPU_ADC_BURST_WCS,
+ IPU_ADC_IFC_MODE_SYS80_TYPE2,
+ 16, 0, 0, IPU_ADC_SER_NO_RW
+ };
+ mxc_fbi->disp_num = DISP0;
+#elif defined(CONFIG_FB_MXC_ASYNC_PANEL_IFC_8_BIT)
+ uint32_t pix_fmt = IPU_PIX_FMT_RGB666;
+ ipu_adc_sig_cfg_t sig = { 0, 0, 0, 0, 0, 0, 0, 0,
+ IPU_ADC_BURST_WCS,
+ IPU_ADC_IFC_MODE_SYS80_TYPE2,
+ 8, 0, 0, IPU_ADC_SER_NO_RW
+ };
+ mxc_fbi->disp_num = DISP0;
+#else
+ uint32_t pix_fmt = IPU_PIX_FMT_RGB565;
+ ipu_adc_sig_cfg_t sig = { 0, 1, 0, 0, 0, 0, 0, 0,
+ IPU_ADC_BURST_SERIAL,
+ IPU_ADC_IFC_MODE_5WIRE_SERIAL_CLK,
+ 16, 0, 0, IPU_ADC_SER_NO_RW
+ };
+ fbi->disp_num = DISP1;
+#endif
+
+#ifdef PARTIAL_REFRESH
+ if (ipu_request_irq(IPU_IRQ_ADC_SYS2_EOF, mxcfb_sys2_eof_irq_handler, 0,
+ MXCFB_NAME, fbi) != 0) {
+ dev_err(fbi->device, "Error registering SYS2 irq handler.\n");
+ return;
+ }
+
+ if (ipu_request_irq(IPU_IRQ_ADC_SYS1_EOF, mxcfb_sys1_eof_irq_handler, 0,
+ MXCFB_NAME, fbi) != 0) {
+ dev_err(fbi->device, "Error registering SYS1 irq handler.\n");
+ return;
+ }
+ ipu_disable_irq(IPU_IRQ_ADC_SYS1_EOF);
+ ipu_disable_irq(IPU_IRQ_ADC_SYS2_EOF);
+#endif
+ // Init DI interface
+ msb = fls(MXCFB_SCREEN_WIDTH);
+ if (!(MXCFB_SCREEN_WIDTH & ((1UL << msb) - 1)))
+ msb--; // Already aligned to power 2
+ panel_stride = 1UL << msb;
+ ipu_adc_init_panel(mxc_fbi->disp_num,
+ MXCFB_SCREEN_WIDTH + MXCFB_SCREEN_LEFT_OFFSET,
+ MXCFB_SCREEN_HEIGHT,
+ pix_fmt, panel_stride, sig, XY, 0, VsyncInternal);
+
+ ipu_adc_init_ifc_timing(mxc_fbi->disp_num, true,
+ 190, 17, 104, 190, 5000000);
+ ipu_adc_init_ifc_timing(mxc_fbi->disp_num, false, 123, 17, 68, 0, 0);
+
+ // Needed to turn on ADC clock for panel init
+ memset(&params, 0, sizeof(params));
+ params.adc_sys1.disp = mxc_fbi->disp_num;
+ params.adc_sys1.ch_mode = WriteTemplateNonSeq;
+ params.adc_sys1.out_left = MXCFB_SCREEN_LEFT_OFFSET;
+ params.adc_sys1.out_top = MXCFB_SCREEN_TOP_OFFSET;
+ ipu_init_channel(ADC_SYS1, &params);
+
+ _init_panel(mxc_fbi->disp_num);
+ init_channel_template(mxc_fbi->disp_num);
+}
+
+int mxcfb_set_refresh_mode(struct fb_info *fbi, int mode,
+ struct mxcfb_rect *update_region)
+{
+ unsigned long start_addr;
+ int ret_mode;
+ uint32_t dummy;
+ ipu_channel_params_t params;
+ struct mxcfb_rect rect;
+ struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)fbi->par;
+ uint32_t stride_pixels = (fbi->fix.line_length * 8) /
+ fbi->var.bits_per_pixel;
+ uint32_t memsize = fbi->fix.smem_len;
+
+ if (mxc_fbi->cur_update_mode == mode)
+ return mode;
+
+ ret_mode = mxc_fbi->cur_update_mode;
+
+ ipu_disable_irq(IPU_IRQ_ADC_SYS1_EOF);
+ ipu_adc_set_update_mode(ADC_SYS1, IPU_ADC_REFRESH_NONE, 0, 0, 0);
+#ifdef PARTIAL_REFRESH
+ ipu_disable_irq(IPU_IRQ_ADC_SYS2_EOF);
+ ipu_adc_set_update_mode(ADC_SYS2, IPU_ADC_REFRESH_NONE, 0, 0, 0);
+#endif
+
+ ipu_disable_channel(ADC_SYS1, true);
+ ipu_clear_irq(IPU_IRQ_ADC_SYS1_EOF);
+#ifdef PARTIAL_REFRESH
+ ipu_disable_channel(ADC_SYS2, true);
+ ipu_clear_irq(IPU_IRQ_ADC_SYS2_EOF);
+#endif
+ ipu_adc_get_snooping_status(&dummy, &dummy);
+
+ mxc_fbi->cur_update_mode = mode;
+
+ switch (mode) {
+ case MXCFB_REFRESH_OFF:
+ if (ipu_adc_set_update_mode(ADC_SYS1, IPU_ADC_REFRESH_NONE,
+ 0, 0, 0) < 0)
+ dev_err(fbi->device, "Error enabling auto refesh.\n");
+ if (ipu_adc_set_update_mode(ADC_SYS2, IPU_ADC_REFRESH_NONE,
+ 0, 0, 0) < 0)
+ dev_err(fbi->device, "Error enabling auto refesh.\n");
+#if 0
+ ipu_init_channel_buffer(ADC_SYS2, IPU_INPUT_BUFFER,
+ bpp_to_pixfmt(fbi->var.bits_per_pixel),
+ 1, 1, 4,
+ IPU_ROTATE_NONE,
+ fbi->fix.smem_start,
+ fbi->fix.smem_start, 0, 0);
+ ipu_enable_channel(ADC_SYS2);
+ ipu_select_buffer(ADC_SYS2, IPU_INPUT_BUFFER, 0);
+ ipu_select_buffer(ADC_SYS2, IPU_INPUT_BUFFER, 1);
+ msleep(10);
+#endif
+ ipu_uninit_channel(ADC_SYS1);
+#ifdef PARTIAL_REFRESH
+ ipu_uninit_channel(ADC_SYS2);
+#endif
+ break;
+ case MXCFB_REFRESH_PARTIAL:
+#ifdef PARTIAL_REFRESH
+ ipu_adc_get_snooping_status(&dummy, &dummy);
+
+ params.adc_sys2.disp = DISP0;
+ params.adc_sys2.ch_mode = WriteTemplateNonSeq;
+ params.adc_sys2.out_left = 0;
+ params.adc_sys2.out_top = 0;
+ ipu_init_channel(ADC_SYS2, &params);
+
+ if (ipu_adc_set_update_mode(ADC_SYS1, IPU_ADC_REFRESH_NONE,
+ 0, 0, 0) < 0) {
+ dev_err(fbi->device, "Error enabling auto refesh.\n");
+ }
+ if (ipu_adc_set_update_mode
+ (ADC_SYS2, IPU_ADC_AUTO_REFRESH_SNOOP, 30,
+ fbi->fix.smem_start, &memsize) < 0) {
+ dev_err(fbi->device, "Error enabling auto refesh.\n");
+ }
+ mxc_fbi->snoop_window_size = memsize;
+
+ ipu_init_channel_buffer(ADC_SYS2, IPU_INPUT_BUFFER,
+ bpp_to_pixfmt(fbi->var.bits_per_pixel),
+ 1, 1, 4,
+ IPU_ROTATE_NONE,
+ fbi->fix.smem_start, 0, 0, 0);
+
+ params.adc_sys1.disp = mxc_fbi->disp_num;
+ params.adc_sys1.ch_mode = WriteTemplateNonSeq;
+ params.adc_sys1.out_left = MXCFB_SCREEN_LEFT_OFFSET;
+ params.adc_sys1.out_top = MXCFB_SCREEN_TOP_OFFSET;
+ ipu_init_channel(ADC_SYS1, &params);
+
+ ipu_init_channel_buffer(ADC_SYS1, IPU_INPUT_BUFFER,
+ bpp_to_pixfmt(fbi->var.bits_per_pixel),
+ MXCFB_SCREEN_WIDTH, MXCFB_SCREEN_HEIGHT,
+ stride_pixels, IPU_ROTATE_NONE,
+ fbi->fix.smem_start, 0, 0, 0);
+ ipu_enable_channel(ADC_SYS1);
+ ipu_select_buffer(ADC_SYS1, IPU_INPUT_BUFFER, 0);
+ ipu_enable_irq(IPU_IRQ_ADC_SYS1_EOF);
+ break;
+#endif
+ case MXCFB_REFRESH_AUTO:
+ if (update_region == NULL) {
+ update_region = &rect;
+ rect.top = 0;
+ rect.left = 0;
+ rect.height = MXCFB_SCREEN_HEIGHT;
+ rect.width = MXCFB_SCREEN_WIDTH;
+ }
+ params.adc_sys1.disp = mxc_fbi->disp_num;
+ params.adc_sys1.ch_mode = WriteTemplateNonSeq;
+ params.adc_sys1.out_left = MXCFB_SCREEN_LEFT_OFFSET +
+ update_region->left;
+ params.adc_sys1.out_top = MXCFB_SCREEN_TOP_OFFSET +
+ update_region->top;
+ ipu_init_channel(ADC_SYS1, &params);
+
+ // Address aligned to line
+ start_addr = update_region->top * fbi->fix.line_length;
+ start_addr += fbi->fix.smem_start;
+ start_addr += update_region->left * fbi->var.bits_per_pixel / 8;
+
+ ipu_init_channel_buffer(ADC_SYS1, IPU_INPUT_BUFFER,
+ bpp_to_pixfmt(fbi->var.bits_per_pixel),
+ update_region->width,
+ update_region->height, stride_pixels,
+ IPU_ROTATE_NONE, start_addr, 0, 0, 0);
+ ipu_enable_channel(ADC_SYS1);
+ ipu_select_buffer(ADC_SYS1, IPU_INPUT_BUFFER, 0);
+
+ if (ipu_adc_set_update_mode
+ (ADC_SYS1, IPU_ADC_AUTO_REFRESH_SNOOP, 30,
+ fbi->fix.smem_start, &memsize) < 0)
+ dev_err(fbi->device, "Error enabling auto refesh.\n");
+
+ mxc_fbi->snoop_window_size = memsize;
+
+ break;
+ }
+ return ret_mode;
+}
+
+/*
+ * Open the main framebuffer.
+ *
+ * @param fbi framebuffer information pointer
+ *
+ * @param user Set if opened by user or clear if opened by kernel
+ */
+static int mxcfb_open(struct fb_info *fbi, int user)
+{
+ int retval = 0;
+ struct mxcfb_info *mxc_fbi = fbi->par;
+
+ if ((retval = wait_event_interruptible(mxcfb_drv_data.suspend_wq,
+ (mxcfb_drv_data.suspended ==
+ false))) < 0) {
+ return retval;
+ }
+
+ mxc_fbi->open_count++;
+
+ retval = mxcfb_blank(FB_BLANK_UNBLANK, fbi);
+ return retval;
+}
+
+/*
+ * Close the main framebuffer.
+ *
+ * @param fbi framebuffer information pointer
+ *
+ * @param user Set if opened by user or clear if opened by kernel
+ */
+static int mxcfb_release(struct fb_info *fbi, int user)
+{
+ int retval = 0;
+ struct mxcfb_info *mxc_fbi = fbi->par;
+
+ if ((retval = wait_event_interruptible(mxcfb_drv_data.suspend_wq,
+ (mxcfb_drv_data.suspended ==
+ false))) < 0) {
+ return retval;
+ }
+
+ --mxc_fbi->open_count;
+ if (mxc_fbi->open_count == 0) {
+ retval = mxcfb_blank(FB_BLANK_POWERDOWN, fbi);
+ }
+ return retval;
+}
+
+/*
+ * Set fixed framebuffer parameters based on variable settings.
+ *
+ * @param info framebuffer information pointer
+ */
+static int mxcfb_set_fix(struct fb_info *info)
+{
+ struct fb_fix_screeninfo *fix = &info->fix;
+ struct fb_var_screeninfo *var = &info->var;
+ struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)info->par;
+
+ // Set framebuffer id to IPU display number.
+ strcpy(fix->id, "DISP0 FB");
+ fix->id[4] = '0' + mxc_fbi->disp_num;
+
+ // Init settings based on the panel size
+ fix->line_length = MXCFB_SCREEN_WIDTH * var->bits_per_pixel / 8;
+
+ fix->type = FB_TYPE_PACKED_PIXELS;
+ fix->accel = FB_ACCEL_NONE;
+ fix->visual = FB_VISUAL_TRUECOLOR;
+ fix->xpanstep = 0;
+ fix->ypanstep = 0;
+
+ return 0;
+}
+
+/*
+ * Set framebuffer parameters and change the operating mode.
+ *
+ * @param info framebuffer information pointer
+ */
+static int mxcfb_set_par(struct fb_info *fbi)
+{
+ int retval = 0;
+ int mode;
+
+ if ((retval = wait_event_interruptible(mxcfb_drv_data.suspend_wq,
+ (mxcfb_drv_data.suspended ==
+ false))) < 0) {
+ return retval;
+ }
+
+ mode = mxcfb_set_refresh_mode(fbi, MXCFB_REFRESH_OFF, NULL);
+
+ mxcfb_set_fix(fbi);
+
+ if (mode != MXCFB_REFRESH_OFF) {
+#ifdef PARTIAL_REFRESH
+ mxcfb_set_refresh_mode(fbi, MXCFB_REFRESH_PARTIAL, NULL);
+#else
+ mxcfb_set_refresh_mode(fbi, MXCFB_REFRESH_AUTO, NULL);
+#endif
+ }
+ return 0;
+}
+
+/*
+ * Check framebuffer variable parameters and adjust to valid values.
+ *
+ * @param var framebuffer variable parameters
+ *
+ * @param info framebuffer information pointer
+ */
+static int mxcfb_check_var(struct fb_var_screeninfo *var, struct fb_info *fbi)
+{
+ if (var->xres > MXCFB_SCREEN_WIDTH)
+ var->xres = MXCFB_SCREEN_WIDTH;
+ if (var->yres > MXCFB_SCREEN_HEIGHT)
+ var->yres = MXCFB_SCREEN_HEIGHT;
+ if (var->xres_virtual < var->xres)
+ var->xres_virtual = var->xres;
+ if (var->yres_virtual < var->yres)
+ var->yres_virtual = var->yres;
+
+ if ((var->bits_per_pixel != 32) && (var->bits_per_pixel != 24) &&
+ (var->bits_per_pixel != 16)) {
+ var->bits_per_pixel = default_bpp;
+ }
+
+ switch (var->bits_per_pixel) {
+ case 16:
+ var->red.length = 5;
+ var->red.offset = 11;
+ var->red.msb_right = 0;
+
+ var->green.length = 6;
+ var->green.offset = 5;
+ var->green.msb_right = 0;
+
+ var->blue.length = 5;
+ var->blue.offset = 0;
+ var->blue.msb_right = 0;
+
+ var->transp.length = 0;
+ var->transp.offset = 0;
+ var->transp.msb_right = 0;
+ break;
+ case 24:
+ var->red.length = 8;
+ var->red.offset = 16;
+ var->red.msb_right = 0;
+
+ var->green.length = 8;
+ var->green.offset = 8;
+ var->green.msb_right = 0;
+
+ var->blue.length = 8;
+ var->blue.offset = 0;
+ var->blue.msb_right = 0;
+
+ var->transp.length = 0;
+ var->transp.offset = 0;
+ var->transp.msb_right = 0;
+ break;
+ case 32:
+ var->red.length = 8;
+ var->red.offset = 16;
+ var->red.msb_right = 0;
+
+ var->green.length = 8;
+ var->green.offset = 8;
+ var->green.msb_right = 0;
+
+ var->blue.length = 8;
+ var->blue.offset = 0;
+ var->blue.msb_right = 0;
+
+ var->transp.length = 8;
+ var->transp.offset = 24;
+ var->transp.msb_right = 0;
+ break;
+ }
+
+ var->height = -1;
+ var->width = -1;
+ var->grayscale = 0;
+ var->nonstd = 0;
+
+ var->pixclock = -1;
+ var->left_margin = -1;
+ var->right_margin = -1;
+ var->upper_margin = -1;
+ var->lower_margin = -1;
+ var->hsync_len = -1;
+ var->vsync_len = -1;
+
+ var->vmode = FB_VMODE_NONINTERLACED;
+ var->sync = 0;
+
+ return 0;
+}
+
+static inline u_int _chan_to_field(u_int chan, struct fb_bitfield *bf)
+{
+ chan &= 0xffff;
+ chan >>= 16 - bf->length;
+ return chan << bf->offset;
+}
+
+static int
+mxcfb_setcolreg(u_int regno, u_int red, u_int green, u_int blue,
+ u_int trans, struct fb_info *fbi)
+{
+ unsigned int val;
+ int ret = 1;
+
+ /*
+ * If greyscale is true, then we convert the RGB value
+ * to greyscale no matter what visual we are using.
+ */
+ if (fbi->var.grayscale)
+ red = green = blue = (19595 * red + 38470 * green +
+ 7471 * blue) >> 16;
+ switch (fbi->fix.visual) {
+ case FB_VISUAL_TRUECOLOR:
+ /*
+ * 16-bit True Colour. We encode the RGB value
+ * according to the RGB bitfield information.
+ */
+ if (regno < 16) {
+ u32 *pal = fbi->pseudo_palette;
+
+ val = _chan_to_field(red, &fbi->var.red);
+ val |= _chan_to_field(green, &fbi->var.green);
+ val |= _chan_to_field(blue, &fbi->var.blue);
+
+ pal[regno] = val;
+ ret = 0;
+ }
+ break;
+
+ case FB_VISUAL_STATIC_PSEUDOCOLOR:
+ case FB_VISUAL_PSEUDOCOLOR:
+ break;
+ }
+
+ return ret;
+}
+
+/*
+ * mxcfb_blank():
+ * Blank the display.
+ */
+static int mxcfb_blank(int blank, struct fb_info *fbi)
+{
+ int retval = 0;
+ struct mxcfb_info *mxc_fbi = fbi->par;
+
+ dev_dbg(fbi->device, "blank = %d\n", blank);
+
+ if ((retval = wait_event_interruptible(mxcfb_drv_data.suspend_wq,
+ (mxcfb_drv_data.suspended ==
+ false))) < 0) {
+ return retval;
+ }
+
+ mxc_fbi->blank = blank;
+
+ switch (blank) {
+ case FB_BLANK_POWERDOWN:
+ case FB_BLANK_VSYNC_SUSPEND:
+ case FB_BLANK_HSYNC_SUSPEND:
+ case FB_BLANK_NORMAL:
+ mxcfb_set_refresh_mode(fbi, MXCFB_REFRESH_OFF, NULL);
+ break;
+ case FB_BLANK_UNBLANK:
+ mxcfb_set_refresh_mode(fbi, MXCFB_REFRESH_DEFAULT, NULL);
+ break;
+ }
+ return 0;
+}
+
+/*!
+ * This structure contains the pointers to the control functions that are
+ * invoked by the core framebuffer driver to perform operations like
+ * blitting, rectangle filling, copy regions and cursor definition.
+ */
+static struct fb_ops mxcfb_ops = {
+ .owner = THIS_MODULE,
+ .fb_open = mxcfb_open,
+ .fb_release = mxcfb_release,
+ .fb_set_par = mxcfb_set_par,
+ .fb_check_var = mxcfb_check_var,
+ .fb_setcolreg = mxcfb_setcolreg,
+ .fb_fillrect = cfb_fillrect,
+ .fb_copyarea = cfb_copyarea,
+ .fb_imageblit = cfb_imageblit,
+ .fb_blank = mxcfb_blank,
+};
+
+/*!
+ * Allocates the DRAM memory for the frame buffer. This buffer is remapped
+ * into a non-cached, non-buffered, memory region to allow palette and pixel
+ * writes to occur without flushing the cache. Once this area is remapped,
+ * all virtual memory access to the video memory should occur at the new region.
+ *
+ * @param fbi framebuffer information pointer
+ *
+ * @return Error code indicating success or failure
+ */
+static int mxcfb_map_video_memory(struct fb_info *fbi)
+{
+ u32 msb;
+ u32 offset;
+ struct mxcfb_info *mxcfbi = fbi->par;
+
+ fbi->fix.smem_len = fbi->var.xres_virtual * fbi->var.yres_virtual * 4;
+
+ // Set size to power of 2.
+ msb = fls(fbi->fix.smem_len);
+ if (!(fbi->fix.smem_len & ((1UL << msb) - 1)))
+ msb--; // Already aligned to power 2
+ if (msb < 11)
+ msb = 11;
+ mxcfbi->alloc_size = (1UL << msb) * 2;
+
+ mxcfbi->alloc_start_vaddr = dma_alloc_coherent(fbi->device,
+ mxcfbi->alloc_size,
+ &mxcfbi->
+ alloc_start_paddr,
+ GFP_KERNEL | GFP_DMA);
+
+ if (mxcfbi->alloc_start_vaddr == 0) {
+ dev_err(fbi->device, "Unable to allocate framebuffer memory\n");
+ return -ENOMEM;
+ }
+ dev_dbg(fbi->device, "allocated fb memory @ paddr=0x%08X, size=%d.\n",
+ (uint32_t) mxcfbi->alloc_start_paddr, mxcfbi->alloc_size);
+
+ offset =
+ ((mxcfbi->alloc_size / 2) - 1) & ~((mxcfbi->alloc_size / 2) - 1);
+ fbi->fix.smem_start = mxcfbi->alloc_start_paddr + offset;
+ dev_dbg(fbi->device, "aligned fb start @ paddr=0x%08lX, size=%u.\n",
+ fbi->fix.smem_start, fbi->fix.smem_len);
+
+ fbi->screen_base = mxcfbi->alloc_start_vaddr + offset;
+
+ /* Clear the screen */
+ memset(fbi->screen_base, 0, fbi->fix.smem_len);
+ return 0;
+}
+
+/*!
+ * De-allocates the DRAM memory for the frame buffer.
+ *
+ * @param fbi framebuffer information pointer
+ *
+ * @return Error code indicating success or failure
+ */
+static int mxcfb_unmap_video_memory(struct fb_info *fbi)
+{
+ struct mxcfb_info *mxc_fbi = (struct mxcfb_info *)fbi->par;
+
+ dma_free_coherent(fbi->device, mxc_fbi->alloc_size,
+ mxc_fbi->alloc_start_vaddr,
+ mxc_fbi->alloc_start_paddr);
+ return 0;
+}
+
+/*!
+ * Initializes the framebuffer information pointer. After allocating
+ * sufficient memory for the framebuffer structure, the fields are
+ * filled with custom information passed in from the configurable
+ * structures. This includes information such as bits per pixel,
+ * color maps, screen width/height and RGBA offsets.
+ *
+ * @return Framebuffer structure initialized with our information
+ */
+static struct fb_info *mxcfb_init_fbinfo(struct device *dev, struct fb_ops *ops)
+{
+ struct fb_info *fbi;
+ struct mxcfb_info *mxcfbi;
+
+ /*
+ * Allocate sufficient memory for the fb structure
+ */
+ fbi = framebuffer_alloc(sizeof(struct mxcfb_info), dev);
+ if (!fbi)
+ return NULL;
+
+ mxcfbi = (struct mxcfb_info *)fbi->par;
+
+ /*
+ * Fill in fb_info structure information
+ */
+ fbi->var.xres = fbi->var.xres_virtual = MXCFB_SCREEN_WIDTH;
+ fbi->var.yres = fbi->var.yres_virtual = MXCFB_SCREEN_HEIGHT;
+ fbi->var.activate = FB_ACTIVATE_NOW;
+ mxcfb_check_var(&fbi->var, fbi);
+
+ mxcfb_set_fix(fbi);
+
+ fbi->fbops = ops;
+ fbi->flags = FBINFO_FLAG_DEFAULT;
+ fbi->pseudo_palette = mxcfbi->pseudo_palette;
+
+ /*
+ * Allocate colormap
+ */
+ fb_alloc_cmap(&fbi->cmap, 16, 0);
+
+ return fbi;
+}
+
+/*!
+ * Probe routine for the framebuffer driver. It is called during the
+ * driver binding process. The following functions are performed in
+ * this routine: Framebuffer initialization, Memory allocation and
+ * mapping, Framebuffer registration, IPU initialization.
+ *
+ * @return Appropriate error code to the kernel common code
+ */
+static int mxcfb_probe(struct platform_device *pdev)
+{
+ struct fb_info *fbi;
+ struct mxcfb_info *mxc_fbi;
+ int ret;
+
+ platform_set_drvdata(pdev, &mxcfb_drv_data);
+
+ /*
+ * Initialize FB structures
+ */
+ fbi = mxcfb_init_fbinfo(&pdev->dev, &mxcfb_ops);
+ if (!fbi) {
+ ret = -ENOMEM;
+ goto err0;
+ }
+ mxcfb_drv_data.fbi = fbi;
+ mxc_fbi = fbi->par;
+
+ mxcfb_drv_data.suspended = false;
+ init_waitqueue_head(&mxcfb_drv_data.suspend_wq);
+
+ /*
+ * Allocate memory
+ */
+ ret = mxcfb_map_video_memory(fbi);
+ if (ret < 0) {
+ goto err1;
+ }
+
+ mxcfb_init_panel(fbi);
+
+ /*
+ * Register framebuffer
+ */
+ ret = register_framebuffer(fbi);
+ if (ret < 0) {
+ goto err2;
+ }
+
+ dev_info(&pdev->dev, "%s registered\n", MXCFB_NAME);
+
+ return 0;
+
+ err2:
+ mxcfb_unmap_video_memory(fbi);
+ err1:
+ if (&fbi->cmap)
+ fb_dealloc_cmap(&fbi->cmap);
+ framebuffer_release(fbi);
+ err0:
+ return ret;
+}
+
+#ifdef CONFIG_PM
+/*!
+ * Power management hooks. Note that we won't be called from IRQ context,
+ * unlike the blank functions above, so we may sleep.
+ */
+
+/*!
+ * Suspends the framebuffer and blanks the screen. Power management support
+ *
+ * @param pdev pointer to device structure.
+ * @param state state of the device.
+ *
+ * @return success
+ */
+static int mxcfb_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ struct mxcfb_data *drv_data = platform_get_drvdata(pdev);
+ struct fb_info *fbi = drv_data->fbi;
+ struct mxcfb_info *mxc_fbi = fbi->par;
+
+ drv_data->suspended = true;
+
+ if (mxc_fbi->blank == FB_BLANK_UNBLANK)
+ mxcfb_set_refresh_mode(fbi, MXCFB_REFRESH_OFF, NULL);
+ /* Display OFF */
+ ipu_adc_write_cmd(mxc_fbi->disp_num, CMD, DISOFF, 0, 0);
+
+ return 0;
+}
+
+/*!
+ * Resumes the framebuffer and unblanks the screen. Power management support
+ *
+ * @param pdev pointer to device structure.
+ *
+ * @return success
+ */
+static int mxcfb_resume(struct platform_device *pdev)
+{
+ struct mxcfb_data *drv_data = platform_get_drvdata(pdev);
+ struct fb_info *fbi = drv_data->fbi;
+ struct mxcfb_info *mxc_fbi = fbi->par;
+
+ // Display ON
+ ipu_adc_write_cmd(mxc_fbi->disp_num, CMD, DISON, 0, 0);
+ drv_data->suspended = false;
+
+ if (mxc_fbi->blank == FB_BLANK_UNBLANK)
+ mxcfb_set_refresh_mode(fbi, MXCFB_REFRESH_DEFAULT, NULL);
+ wake_up_interruptible(&drv_data->suspend_wq);
+
+ return 0;
+}
+#else
+#define mxcfb_suspend NULL
+#define mxcfb_resume NULL
+#endif
+
+/*!
+ * This structure contains pointers to the power management callback functions.
+ */
+static struct platform_driver mxcfb_driver = {
+ .driver = {
+ .name = MXCFB_NAME,
+ },
+ .probe = mxcfb_probe,
+ .suspend = mxcfb_suspend,
+ .resume = mxcfb_resume,
+};
+
+/*!
+ * Device definition for the Framebuffer
+ */
+static struct platform_device mxcfb_device = {
+ .name = MXCFB_NAME,
+ .id = 0,
+ .dev = {
+ .coherent_dma_mask = 0xFFFFFFFF,
+ }
+};
+
+/*!
+ * Main entry function for the framebuffer. The function registers the power
+ * management callback functions with the kernel and also registers the MXCFB
+ * callback functions with the core Linux framebuffer driver \b fbmem.c
+ *
+ * @return Error code indicating success or failure
+ */
+static int mxcfb_init(void)
+{
+ int ret = 0;
+
+ ret = platform_driver_register(&mxcfb_driver);
+ if (ret == 0) {
+ ret = platform_device_register(&mxcfb_device);
+ if (ret != 0) {
+ platform_driver_unregister(&mxcfb_driver);
+ }
+ }
+ return ret;
+}
+
+static void mxcfb_exit(void)
+{
+ struct fb_info *fbi = dev_get_drvdata(&mxcfb_device.dev);
+
+ if (fbi) {
+ mxcfb_unmap_video_memory(fbi);
+
+ if (&fbi->cmap)
+ fb_dealloc_cmap(&fbi->cmap);
+
+ unregister_framebuffer(fbi);
+ framebuffer_release(fbi);
+ }
+
+ platform_device_unregister(&mxcfb_device);
+ platform_driver_unregister(&mxcfb_driver);
+}
+
+module_init(mxcfb_init);
+module_exit(mxcfb_exit);
+
+EXPORT_SYMBOL(mxcfb_set_refresh_mode);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("MXC Epson framebuffer driver");
+MODULE_SUPPORTED_DEVICE("fb");
diff --git a/drivers/video/mxc/mxcfb_epson_vga.c b/drivers/video/mxc/mxcfb_epson_vga.c
new file mode 100644
index 000000000000..1d298b50c1e1
--- /dev/null
+++ b/drivers/video/mxc/mxcfb_epson_vga.c
@@ -0,0 +1,357 @@
+/*
+ * Copyright 2007-2009 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/*!
+ * @defgroup Framebuffer Framebuffer Driver for SDC and ADC.
+ */
+
+/*!
+ * @file mxcfb_epson_vga.c
+ *
+ * @brief MXC Frame buffer driver for SDC
+ *
+ * @ingroup Framebuffer
+ */
+
+/*!
+ * Include files
+ */
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/console.h>
+#include <linux/delay.h>
+#include <linux/errno.h>
+#include <linux/fb.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/regulator.h>
+#include <linux/spi/spi.h>
+#include <mach/mxcfb.h>
+#include <mach/ipu.h>
+#include <asm/mach-types.h>
+
+static struct spi_device *lcd_spi;
+static struct device *lcd_dev;
+
+static void lcd_init(void);
+static void lcd_poweron(void);
+static void lcd_poweroff(void);
+
+static void (*lcd_reset) (void);
+static struct regulator *io_reg;
+static struct regulator *core_reg;
+
+static struct fb_videomode video_modes[] = {
+ {
+ /* 480x640 @ 60 Hz */
+ "Epson-VGA", 60, 480, 640, 41701, 60, 41, 10, 5, 20, 10,
+ FB_SYNC_CLK_INVERT | FB_SYNC_OE_ACT_HIGH,
+ FB_VMODE_NONINTERLACED,
+ 0,},
+};
+
+static void lcd_init_fb(struct fb_info *info)
+{
+ struct fb_var_screeninfo var;
+
+ memset(&var, 0, sizeof(var));
+
+ fb_videomode_to_var(&var, &video_modes[0]);
+
+ if (machine_is_mx31_3ds()) {
+ var.upper_margin = 0;
+ var.left_margin = 0;
+ }
+
+ var.activate = FB_ACTIVATE_ALL;
+ var.yres_virtual = var.yres * 2;
+
+ acquire_console_sem();
+ info->flags |= FBINFO_MISC_USEREVENT;
+ fb_set_var(info, &var);
+ info->flags &= ~FBINFO_MISC_USEREVENT;
+ release_console_sem();
+}
+
+static int lcd_fb_event(struct notifier_block *nb, unsigned long val, void *v)
+{
+ struct fb_event *event = v;
+
+ if (strcmp(event->info->fix.id, "DISP3 BG")) {
+ return 0;
+ }
+
+ switch (val) {
+ case FB_EVENT_FB_REGISTERED:
+ lcd_init_fb(event->info);
+ lcd_poweron();
+ break;
+ case FB_EVENT_BLANK:
+ if ((event->info->var.xres != 480) ||
+ (event->info->var.yres != 640)) {
+ break;
+ }
+ if (*((int *)event->data) == FB_BLANK_UNBLANK) {
+ lcd_poweron();
+ } else {
+ lcd_poweroff();
+ }
+ break;
+ }
+ return 0;
+}
+
+static struct notifier_block nb = {
+ .notifier_call = lcd_fb_event,
+};
+
+/*!
+ * This function is called whenever the SPI slave device is detected.
+ *
+ * @param spi the SPI slave device
+ *
+ * @return Returns 0 on SUCCESS and error on FAILURE.
+ */
+static int __devinit lcd_probe(struct device *dev)
+{
+ int i;
+ struct mxc_lcd_platform_data *plat = dev->platform_data;
+
+ lcd_dev = dev;
+
+ if (plat) {
+ io_reg = regulator_get(dev, plat->io_reg);
+ if (!IS_ERR(io_reg)) {
+ regulator_set_voltage(io_reg, 1800000);
+ regulator_enable(io_reg);
+ }
+ core_reg = regulator_get(dev, plat->core_reg);
+ if (!IS_ERR(core_reg)) {
+ regulator_set_voltage(core_reg, 2800000);
+ regulator_enable(core_reg);
+ }
+
+ lcd_reset = plat->reset;
+ if (lcd_reset)
+ lcd_reset();
+ }
+
+ lcd_init();
+
+ for (i = 0; i < num_registered_fb; i++) {
+ if (strcmp(registered_fb[i]->fix.id, "DISP3 BG") == 0) {
+ lcd_init_fb(registered_fb[i]);
+ fb_show_logo(registered_fb[i], 0);
+ lcd_poweron();
+ }
+ }
+
+ fb_register_client(&nb);
+
+ return 0;
+}
+
+static int __devinit lcd_plat_probe(struct platform_device *pdev)
+{
+ ipu_adc_sig_cfg_t sig;
+ ipu_channel_params_t param;
+
+ memset(&sig, 0, sizeof(sig));
+ sig.ifc_width = 9;
+ sig.clk_pol = 1;
+ ipu_init_async_panel(0, IPU_PANEL_SERIAL, 90, IPU_PIX_FMT_GENERIC, sig);
+
+ memset(&param, 0, sizeof(param));
+ ipu_init_channel(DIRECT_ASYNC1, &param);
+
+ return lcd_probe(&pdev->dev);
+}
+
+static int __devinit lcd_spi_probe(struct spi_device *spi)
+{
+ lcd_spi = spi;
+
+ spi->bits_per_word = 9;
+ spi_setup(spi);
+
+ return lcd_probe(&spi->dev);
+}
+
+static int __devexit lcd_remove(struct device *dev)
+{
+ fb_unregister_client(&nb);
+ lcd_poweroff();
+ regulator_put(io_reg, dev);
+ regulator_put(core_reg, dev);
+
+ return 0;
+}
+
+static int __devexit lcd_spi_remove(struct spi_device *spi)
+{
+ int ret = lcd_remove(&spi->dev);
+ lcd_spi = NULL;
+ return ret;
+}
+
+static int __devexit lcd_plat_remove(struct platform_device *pdev)
+{
+ return lcd_remove(&pdev->dev);
+}
+
+static int lcd_suspend(struct spi_device *spi, pm_message_t message)
+{
+ return 0;
+}
+
+static int lcd_resume(struct spi_device *spi)
+{
+ return 0;
+}
+
+/*!
+ * spi driver structure for LTV350QV
+ */
+static struct spi_driver lcd_spi_dev_driver = {
+
+ .driver = {
+ .name = "lcd_spi",
+ .owner = THIS_MODULE,
+ },
+ .probe = lcd_spi_probe,
+ .remove = __devexit_p(lcd_spi_remove),
+ .suspend = lcd_suspend,
+ .resume = lcd_resume,
+};
+
+static struct platform_driver lcd_plat_driver = {
+ .driver = {
+ .name = "lcd_spi",
+ .owner = THIS_MODULE,
+ },
+ .probe = lcd_plat_probe,
+ .remove = __devexit_p(lcd_plat_remove),
+};
+
+#define param(x) ((x) | 0x100)
+
+/*
+ * Send init commands to L4F00242T03
+ *
+ */
+static void lcd_init(void)
+{
+ const u16 cmd[] = { 0x36, param(0), 0x3A, param(0x60) };
+
+ dev_dbg(lcd_dev, "initializing LCD\n");
+
+ if (lcd_spi) {
+ spi_write(lcd_spi, (const u8 *)cmd, ARRAY_SIZE(cmd));
+ } else {
+ ipu_disp_direct_write(DIRECT_ASYNC1, 0x36, 0);
+ ipu_disp_direct_write(DIRECT_ASYNC1, 0x100, 0);
+ ipu_disp_direct_write(DIRECT_ASYNC1, 0x3A, 0);
+ ipu_disp_direct_write(DIRECT_ASYNC1, 0x160, 0);
+ msleep(1);
+ ipu_uninit_channel(DIRECT_ASYNC1);
+ }
+}
+
+static int lcd_on;
+/*
+ * Send Power On commands to L4F00242T03
+ *
+ */
+static void lcd_poweron(void)
+{
+ const u16 slpout = 0x11;
+ const u16 dison = 0x29;
+ ipu_channel_params_t param;
+
+ if (lcd_on)
+ return;
+
+ dev_dbg(lcd_dev, "turning on LCD\n");
+
+ if (lcd_spi) {
+ msleep(60);
+ spi_write(lcd_spi, (const u8 *)&slpout, 1);
+ msleep(60);
+ spi_write(lcd_spi, (const u8 *)&dison, 1);
+ } else {
+ memset(&param, 0, sizeof(param));
+ ipu_init_channel(DIRECT_ASYNC1, &param);
+ ipu_disp_direct_write(DIRECT_ASYNC1, slpout, 0);
+ msleep(60);
+ ipu_disp_direct_write(DIRECT_ASYNC1, dison, 0);
+ msleep(1);
+ ipu_uninit_channel(DIRECT_ASYNC1);
+ }
+ lcd_on = 1;
+}
+
+/*
+ * Send Power Off commands to L4F00242T03
+ *
+ */
+static void lcd_poweroff(void)
+{
+ const u16 slpin = 0x10;
+ const u16 disoff = 0x28;
+ ipu_channel_params_t param;
+
+ if (!lcd_on)
+ return;
+
+ dev_dbg(lcd_dev, "turning off LCD\n");
+
+ if (lcd_spi) {
+ msleep(60);
+ spi_write(lcd_spi, (const u8 *)&disoff, 1);
+ msleep(60);
+ spi_write(lcd_spi, (const u8 *)&slpin, 1);
+ } else {
+ memset(&param, 0, sizeof(param));
+ ipu_init_channel(DIRECT_ASYNC1, &param);
+ ipu_disp_direct_write(DIRECT_ASYNC1, disoff, 0);
+ msleep(60);
+ ipu_disp_direct_write(DIRECT_ASYNC1, slpin, 0);
+ msleep(1);
+ ipu_uninit_channel(DIRECT_ASYNC1);
+ }
+ lcd_on = 0;
+}
+
+static int __init epson_lcd_init(void)
+{
+ int ret;
+
+ ret = platform_driver_register(&lcd_plat_driver);
+ if (ret)
+ return ret;
+
+ return spi_register_driver(&lcd_spi_dev_driver);
+
+}
+
+static void __exit epson_lcd_exit(void)
+{
+ spi_unregister_driver(&lcd_spi_dev_driver);
+}
+
+module_init(epson_lcd_init);
+module_exit(epson_lcd_exit);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("Epson VGA LCD init driver");
+MODULE_LICENSE("GPL");
diff --git a/drivers/video/mxc/mxcfb_modedb.c b/drivers/video/mxc/mxcfb_modedb.c
new file mode 100644
index 000000000000..6905153e44f8
--- /dev/null
+++ b/drivers/video/mxc/mxcfb_modedb.c
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2007-2009 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+#include <linux/kernel.h>
+#include <mach/mxcfb.h>
+
+struct fb_videomode mxcfb_modedb[] = {
+ {
+ /* 240x320 @ 60 Hz */
+ "Sharp-QVGA", 60, 240, 320, 185925, 9, 16, 7, 9, 1, 1,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_SHARP_MODE |
+ FB_SYNC_CLK_INVERT | FB_SYNC_DATA_INVERT | FB_SYNC_CLK_IDLE_EN,
+ FB_VMODE_NONINTERLACED,
+ 0,},
+ {
+ /* 240x33 @ 60 Hz */
+ "Sharp-CLI", 60, 240, 33, 185925, 9, 16, 7, 9 + 287, 1, 1,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_SHARP_MODE |
+ FB_SYNC_CLK_INVERT | FB_SYNC_DATA_INVERT | FB_SYNC_CLK_IDLE_EN,
+ FB_VMODE_NONINTERLACED,
+ 0,},
+ {
+ /* 640x480 @ 60 Hz */
+ "NEC-VGA", 60, 640, 480, 38255, 144, 0, 34, 40, 1, 1,
+ FB_SYNC_VERT_HIGH_ACT | FB_SYNC_OE_ACT_HIGH,
+ FB_VMODE_NONINTERLACED,
+ 0,},
+ {
+ /* 640x480 @ 60 Hz */
+ "CPT-VGA", 60, 640, 480, 39683, 45, 114, 33, 11, 1, 1,
+ FB_SYNC_OE_ACT_HIGH,
+ FB_VMODE_NONINTERLACED,
+ 0,},
+ {
+ /* NTSC TV output */
+ "TV-NTSC", 60, 640, 480, 37538,
+ 38, 858 - 640 - 38 - 3,
+ 36, 518 - 480 - 36 - 1,
+ 3, 1,
+ 0,
+ FB_VMODE_NONINTERLACED,
+ 0,},
+ {
+ /* PAL TV output */
+ "TV-PAL", 50, 640, 480, 37538,
+ 38, 960 - 640 - 38 - 32,
+ 32, 555 - 480 - 32 - 3,
+ 32, 3,
+ 0,
+ FB_VMODE_NONINTERLACED,
+ 0,},
+ {
+ /* TV output VGA mode, 640x480 @ 65 Hz */
+ "TV-VGA", 60, 640, 480, 40574, 35, 45, 9, 1, 46, 5,
+ 0, FB_VMODE_NONINTERLACED, 0,
+ },
+};
+
+int mxcfb_modedb_sz = ARRAY_SIZE(mxcfb_modedb);
diff --git a/drivers/video/mxc/tve.c b/drivers/video/mxc/tve.c
new file mode 100644
index 000000000000..13fd825b59d2
--- /dev/null
+++ b/drivers/video/mxc/tve.c
@@ -0,0 +1,466 @@
+/*
+ * Copyright 2008-2009 Freescale Semiconductor, Inc. All Rights Reserved.
+ */
+
+/*
+ * The code contained herein is licensed under the GNU General Public
+ * License. You may obtain a copy of the GNU General Public License
+ * Version 2 or later at the following locations:
+ *
+ * http://www.opensource.org/licenses/gpl-license.html
+ * http://www.gnu.org/copyleft/gpl.html
+ */
+
+/*!
+ * @file tve.c
+ * @brief Driver for i.MX TV encoder
+ *
+ * @ingroup Framebuffer
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/console.h>
+#include <linux/clk.h>
+#include <linux/ctype.h>
+#include <linux/delay.h>
+#include <linux/spinlock.h>
+#include <linux/interrupt.h>
+#include <linux/irq.h>
+#include <linux/sysfs.h>
+#include <linux/platform_device.h>
+#include <linux/regulator/regulator.h>
+#include <asm/uaccess.h>
+#include <asm/atomic.h>
+#include <mach/gpio.h>
+#include <mach/mxcfb.h>
+
+#define TVE_COM_CONF_REG 0
+#define TVE_CD_CONT_REG 0x14
+#define TVE_INT_CONT_REG 0x28
+#define TVE_STAT_REG 0x2C
+#define TVE_MV_CONT_REG 0x48
+
+#define CD_EN 0x00000001
+#define CD_TRIG_MODE 0x00000002
+
+#define CD_LM_INT 0x00000001
+#define CD_SM_INT 0x00000002
+#define CD_MON_END_INT 0x00000004
+#define CD_MAN_TRIG 0x00010000
+
+#define TVOUT_FMT_OFF 0
+#define TVOUT_FMT_NTSC 1
+#define TVOUT_FMT_PAL 2
+
+static int enabled; /* enable power on or not */
+
+static struct fb_info *tve_fbi;
+
+struct tve_data {
+ struct platform_device *pdev;
+ int cur_mode;
+ int detect;
+ void *base;
+ int irq;
+ struct clk *clk;
+ struct regulator *dac_reg;
+ struct regulator *dig_reg;
+} tve;
+
+static struct fb_videomode video_modes[] = {
+ {
+ /* NTSC TV output */
+ "TV-NTSC", 60, 720, 480, 74074,
+ 121, 16,
+ 17, 5,
+ 1, 1,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT | FB_SYNC_OE_ACT_HIGH |
+ FB_SYNC_EXT,
+ FB_VMODE_INTERLACED,
+ 0,},
+ {
+ /* PAL TV output */
+ "TV-PAL", 50, 720, 576, 74074,
+ 131, 12,
+ 21, 3,
+ 1, 1,
+ FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT | FB_SYNC_OE_ACT_HIGH |
+ FB_SYNC_EXT,
+ FB_VMODE_INTERLACED | FB_VMODE_ODD_FLD_FIRST,
+ 0,},
+};
+
+/**
+ * tve_setup
+ * initial the CH7024 chipset by setting register
+ * @param:
+ * vos: output video format
+ * @return:
+ * 0 successful
+ * otherwise failed
+ */
+static int tve_setup(int mode)
+{
+ if (tve.cur_mode == mode)
+ return 0;
+
+ tve.cur_mode = mode;
+
+ if (!enabled)
+ clk_enable(tve.clk);
+
+ /* select output video format */
+ if (mode == TVOUT_FMT_PAL) {
+ __raw_writel(0x00840328, tve.base + TVE_COM_CONF_REG);
+ pr_debug("TVE: change to PAL video\n");
+ } else if (mode == TVOUT_FMT_NTSC) {
+ __raw_writel(0x00840028, tve.base + TVE_COM_CONF_REG);
+ pr_debug("TVE: change to NTSC video\n");
+ } else if (mode == TVOUT_FMT_OFF) {
+ __raw_writel(0x0, tve.base + TVE_COM_CONF_REG);
+ } else {
+ pr_debug("TVE: no such video format.\n");
+ if (!enabled)
+ clk_disable(tve.clk);
+ return -EINVAL;
+ }
+
+ if (!enabled)
+ clk_disable(tve.clk);
+
+ return 0;
+}
+
+/**
+ * tve_enable
+ * Enable the tve Power to begin TV encoder
+ */
+static void tve_enable(void)
+{
+ u32 reg;
+
+ if (!enabled) {
+ enabled = 1;
+ clk_enable(tve.clk);
+ reg = __raw_readl(tve.base + TVE_COM_CONF_REG);
+ __raw_writel(reg | 0x09, tve.base + TVE_COM_CONF_REG);
+ pr_debug("TVE power on.\n");
+ }
+}
+
+/**
+ * tve_disable
+ * Disable the tve Power to stop TV encoder
+ */
+static void tve_disable(void)
+{
+ u32 reg;
+
+ if (enabled) {
+ enabled = 0;
+ reg = __raw_readl(tve.base + TVE_COM_CONF_REG);
+ __raw_writel(reg & ~0x09, tve.base + TVE_COM_CONF_REG);
+ clk_disable(tve.clk);
+ pr_debug("TVE power off.\n");
+ }
+}
+
+static int tve_update_detect_status(void)
+{
+ int old_detect = tve.detect;
+ u32 stat = __raw_readl(tve.base + TVE_STAT_REG);
+
+ if ((stat & CD_MON_END_INT) == 0)
+ return tve.detect;
+
+ if (stat & CD_LM_INT) {
+ if (stat & CD_SM_INT)
+ tve.detect = 2;
+ else
+ tve.detect = 1;
+ } else {
+ tve.detect = 0;
+ }
+
+ __raw_writel(CD_SM_INT | CD_LM_INT | CD_MON_END_INT,
+ tve.base + TVE_STAT_REG);
+
+ if (old_detect != tve.detect)
+ sysfs_notify(&tve.pdev->dev.kobj, NULL, "headphone");
+
+ dev_dbg(&tve.pdev->dev, "detect = %d\n", tve.detect);
+ return tve.detect;
+}
+
+static int tve_man_detect(void)
+{
+ u32 cd_cont;
+ u32 int_cont;
+
+ if (!enabled)
+ return -1;
+
+ int_cont = __raw_readl(tve.base + TVE_INT_CONT_REG);
+ __raw_writel(int_cont & ~(CD_SM_INT | CD_LM_INT),
+ tve.base + TVE_INT_CONT_REG);
+
+ cd_cont = __raw_readl(tve.base + TVE_CD_CONT_REG);
+ __raw_writel(cd_cont | CD_TRIG_MODE, tve.base + TVE_CD_CONT_REG);
+
+ __raw_writel(CD_SM_INT | CD_LM_INT | CD_MON_END_INT | CD_MAN_TRIG,
+ tve.base + TVE_STAT_REG);
+
+ while ((__raw_readl(tve.base + TVE_STAT_REG) & CD_MON_END_INT) == 0)
+ msleep(5);
+
+ tve_update_detect_status();
+
+ __raw_writel(cd_cont, tve.base + TVE_CD_CONT_REG);
+ __raw_writel(int_cont, tve.base + TVE_INT_CONT_REG);
+
+ return tve.detect;
+}
+
+static irqreturn_t tve_detect_handler(int irq, void *data)
+{
+ u32 stat;
+ int old_detect = tve.detect;
+
+ stat = __raw_readl(tve.base + TVE_STAT_REG);
+ stat &= __raw_readl(tve.base + TVE_INT_CONT_REG);
+
+ tve_update_detect_status();
+
+ __raw_writel(stat | CD_MON_END_INT, tve.base + TVE_STAT_REG);
+
+ if (old_detect != tve.detect)
+ sysfs_notify(&tve.pdev->dev.kobj, NULL, "headphone");
+
+ return IRQ_HANDLED;
+}
+
+int tve_fb_event(struct notifier_block *nb, unsigned long val, void *v)
+{
+ struct fb_event *event = v;
+ struct fb_info *fbi = event->info;
+
+ switch (val) {
+ case FB_EVENT_FB_REGISTERED:
+ pr_debug("fb registered event\n");
+ if ((tve_fbi != NULL) || strcmp(fbi->fix.id, "DISP3 BG - DI1"))
+ break;
+
+ tve_fbi = fbi;
+ fb_add_videomode(&video_modes[0], &tve_fbi->modelist);
+ fb_add_videomode(&video_modes[1], &tve_fbi->modelist);
+ break;
+ case FB_EVENT_MODE_CHANGE:
+ if (tve_fbi != fbi)
+ break;
+
+ if (!fbi->mode) {
+ tve_disable();
+ tve.cur_mode = TVOUT_FMT_OFF;
+ return 0;
+ }
+
+ pr_debug("fb mode change event: xres=%d, yres=%d\n",
+ fbi->mode->xres, fbi->mode->yres);
+
+ tve_disable();
+
+ if (fb_mode_is_equal(fbi->mode, &video_modes[0])) {
+ tve_setup(TVOUT_FMT_NTSC);
+ tve_enable();
+ } else if (fb_mode_is_equal(fbi->mode, &video_modes[1])) {
+ tve_setup(TVOUT_FMT_PAL);
+ tve_enable();
+ } else {
+ tve_setup(TVOUT_FMT_OFF);
+ }
+ break;
+ case FB_EVENT_BLANK:
+ if ((tve_fbi != fbi) || (tve.cur_mode == TVOUT_FMT_OFF))
+ return 0;
+
+ if (*((int *)event->data) == FB_BLANK_UNBLANK)
+ tve_enable();
+ else
+ tve_disable();
+ break;
+ }
+ return 0;
+}
+
+static struct notifier_block nb = {
+ .notifier_call = tve_fb_event,
+};
+
+static ssize_t show_headphone(struct device_driver *dev, char *buf)
+{
+ int detect;
+
+ if (!enabled) {
+ strcpy(buf, "tve power off\n");
+ return strlen(buf);
+ }
+
+ detect = tve_update_detect_status();
+
+ if (detect == 0)
+ strcpy(buf, "none\n");
+ else if (detect == 1)
+ strcpy(buf, "cvbs\n");
+ else
+ strcpy(buf, "headset\n");
+
+ return strlen(buf);
+}
+
+static DRIVER_ATTR(headphone, 0644, show_headphone, NULL);
+
+static int tve_probe(struct platform_device *pdev)
+{
+ int ret, i;
+ struct resource *res;
+ struct tve_platform_data *plat_data = pdev->dev.platform_data;
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (res == NULL)
+ return -ENOMEM;
+
+ tve.pdev = pdev;
+ tve.base = ioremap(res->start, res->end - res->start);
+
+ tve.irq = platform_get_irq(pdev, 0);
+ if (tve.irq < 0) {
+ ret = tve.irq;
+ goto err0;
+ }
+
+ ret = request_irq(tve.irq, tve_detect_handler, 0, pdev->name, pdev);
+ if (ret < 0)
+ goto err0;
+
+ ret = driver_create_file(pdev->dev.driver, &driver_attr_headphone);
+ if (ret < 0)
+ goto err1;
+
+ for (i = 0; i < num_registered_fb; i++) {
+ if (strcmp(registered_fb[i]->fix.id, "DISP3 BG - DI1") == 0) {
+ tve_fbi = registered_fb[i];
+ break;
+ }
+ }
+ if (tve_fbi != NULL) {
+ fb_add_videomode(&video_modes[0], &tve_fbi->modelist);
+ fb_add_videomode(&video_modes[1], &tve_fbi->modelist);
+ }
+
+ tve.dac_reg = regulator_get(&pdev->dev, plat_data->dac_reg);
+ if (!IS_ERR(tve.dac_reg)) {
+ regulator_set_voltage(tve.dac_reg, 2500000);
+ regulator_enable(tve.dac_reg);
+ }
+
+ tve.dig_reg = regulator_get(&pdev->dev, plat_data->dig_reg);
+ if (!IS_ERR(tve.dig_reg)) {
+ regulator_set_voltage(tve.dig_reg, 1250000);
+ regulator_enable(tve.dig_reg);
+ }
+
+ tve.clk = clk_get(&pdev->dev, "tve_clk");
+ clk_set_rate(tve.clk, 216000000);
+ clk_enable(tve.clk);
+
+ /* Setup cable detect */
+ __raw_writel(0x010777F1, tve.base + TVE_CD_CONT_REG);
+ /* tve_man_detect(); not working */
+
+ __raw_writel(CD_SM_INT | CD_LM_INT, tve.base + TVE_STAT_REG);
+ __raw_writel(CD_SM_INT | CD_LM_INT, tve.base + TVE_INT_CONT_REG);
+
+ __raw_writel(0x00000000, tve.base + 0x34);
+ __raw_writel(0x00000000, tve.base + 0x38);
+ __raw_writel(0x00000000, tve.base + 0x3C);
+ __raw_writel(0x00000000, tve.base + 0x40);
+ __raw_writel(0x00000000, tve.base + 0x44);
+ __raw_writel(0x00000000, tve.base + TVE_MV_CONT_REG);
+
+ clk_disable(tve.clk);
+
+ ret = fb_register_client(&nb);
+ if (ret < 0)
+ goto err2;
+
+ return 0;
+err2:
+ driver_remove_file(pdev->dev.driver, &driver_attr_headphone);
+err1:
+ free_irq(tve.irq, pdev);
+err0:
+ iounmap(tve.base);
+ return ret;
+}
+
+static int tve_remove(struct platform_device *pdev)
+{
+ if (enabled) {
+ clk_disable(tve.clk);
+ enabled = 0;
+ }
+ free_irq(tve.irq, pdev);
+ driver_remove_file(pdev->dev.driver, &driver_attr_headphone);
+ fb_unregister_client(&nb);
+ return 0;
+}
+
+/*!
+ * PM suspend/resume routing
+ */
+static int tve_suspend(struct platform_device *pdev, pm_message_t state)
+{
+ if (enabled) {
+ __raw_writel(0, tve.base + TVE_INT_CONT_REG);
+ __raw_writel(0, tve.base + TVE_CD_CONT_REG);
+ __raw_writel(0, tve.base + TVE_COM_CONF_REG);
+ clk_disable(tve.clk);
+ }
+ return 0;
+}
+
+static int tve_resume(struct platform_device *pdev)
+{
+ if (enabled)
+ clk_enable(tve.clk);
+
+ return 0;
+}
+
+static struct platform_driver tve_driver = {
+ .driver = {
+ .name = "tve",
+ },
+ .probe = tve_probe,
+ .remove = tve_remove,
+ .suspend = tve_suspend,
+ .resume = tve_resume,
+};
+
+static int __init tve_init(void)
+{
+ return platform_driver_register(&tve_driver);
+}
+
+static void __exit tve_exit(void)
+{
+ platform_driver_unregister(&tve_driver);
+}
+
+module_init(tve_init);
+module_exit(tve_exit);
+
+MODULE_AUTHOR("Freescale Semiconductor, Inc.");
+MODULE_DESCRIPTION("i.MX TV encoder driver");
+MODULE_LICENSE("GPL");