MLK-11606-01: dcic: Porting dcic driver from 3.14.y

Initial the mxc dcic driver.
Baseline copied from imx_3.14.y branch.

Signed-off-by: Sandor Yu <R01008@freescale.com>

2 files changed, 133 insertions, 7 deletions

diff --git a/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h b/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h
index 720b46c325f2..96230ad8a852 100644
--- a/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h
+++ b/include/linux/mfd/syscon/imx6q-iomuxc-gpr.h
@@ -304,15 +304,15 @@
 #define IMX6Q_GPR10_OCRAM_TZ_ADDR_MASK		(0x3f << 5)
 #define IMX6Q_GPR10_OCRAM_TZ_EN_MASK		BIT(4)
 #define IMX6Q_GPR10_DCIC2_MUX_CTL_MASK		(0x3 << 2)
-#define IMX6Q_GPR10_DCIC2_MUX_CTL_IPU1_DI0	(0x0 << 2)
-#define IMX6Q_GPR10_DCIC2_MUX_CTL_IPU1_DI1	(0x1 << 2)
-#define IMX6Q_GPR10_DCIC2_MUX_CTL_IPU2_DI0	(0x2 << 2)
-#define IMX6Q_GPR10_DCIC2_MUX_CTL_IPU2_DI1	(0x3 << 2)
+#define IMX6Q_GPR10_DCIC2_MUX_CTL_IPU1_DI1	(0x0 << 2)
+#define IMX6Q_GPR10_DCIC2_MUX_CTL_LVDS0		(0x1 << 2)
+#define IMX6Q_GPR10_DCIC2_MUX_CTL_LVDS1		(0x2 << 2)
+#define IMX6Q_GPR10_DCIC2_MUX_CTL_MIPI		(0x3 << 2)
 #define IMX6Q_GPR10_DCIC1_MUX_CTL_MASK		(0x3 << 0)
 #define IMX6Q_GPR10_DCIC1_MUX_CTL_IPU1_DI0	(0x0 << 0)
-#define IMX6Q_GPR10_DCIC1_MUX_CTL_IPU1_DI1	(0x1 << 0)
-#define IMX6Q_GPR10_DCIC1_MUX_CTL_IPU2_DI0	(0x2 << 0)
-#define IMX6Q_GPR10_DCIC1_MUX_CTL_IPU2_DI1	(0x3 << 0)
+#define IMX6Q_GPR10_DCIC1_MUX_CTL_LVDS0		(0x1 << 0)
+#define IMX6Q_GPR10_DCIC1_MUX_CTL_LVDS1		(0x2 << 0)
+#define IMX6Q_GPR10_DCIC1_MUX_CTL_HDMI		(0x3 << 0)
 
 #define IMX6Q_GPR12_ARMP_IPG_CLK_EN		BIT(27)
 #define IMX6Q_GPR12_ARMP_AHB_CLK_EN		BIT(26)
diff --git a/include/linux/mxc_dcic.h b/include/linux/mxc_dcic.h
new file mode 100644
index 000000000000..8e330bd466da
--- /dev/null
+++ b/include/linux/mxc_dcic.h
@@ -0,0 +1,126 @@
+/*
+ * Copyright (C) 2014-2015 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 linux/mxc_dcic.h
+ *
+ * @brief Global header file for the MXC DCIC driver
+ *
+ * @ingroup MXC DCIC
+ */
+
+#ifndef __LINUX_DCIC_H__
+#define __LINUX_DCIC_H__
+
+#include <uapi/linux/mxc_dcic.h>
+
+#define DCICC_IC_ENABLE					0x1
+#define DCICC_IC_DISABLE				0x0
+#define DCICC_IC_MASK					0x1
+#define DCICC_DE_ACTIVE_HIGH			0
+#define DCICC_DE_ACTIVE_LOW				(0x1 << 4)
+#define DCICC_DE_ACTIVE_MASK			(0x1 << 4)
+#define DCICC_HSYNC_POL_ACTIVE_HIGH		0
+#define DCICC_HSYNC_POL_ACTIVE_LOW		(0x1 << 5)
+#define DCICC_HSYNC_POL_ACTIVE_MASK		(0x1 << 5)
+#define DCICC_VSYNC_POL_ACTIVE_HIGH		0
+#define DCICC_VSYNC_POL_ACTIVE_LOW		(0x1 << 6)
+#define DCICC_VSYNC_POL_ACTIVE_MASK		(0x1 << 6)
+#define DCICC_CLK_POL_NO_INVERTED		0
+#define DCICC_CLK_POL_INVERTED			(0x1 << 7)
+#define DCICC_CLK_POL_INVERTED_MASK		(0x1 << 7)
+
+#define DCICIC_ERROR_INT_DISABLE		1
+#define DCICIC_ERROR_INT_ENABLE			0
+#define DCICIC_ERROR_INT_MASK_MASK		1
+#define DCICIC_FUN_INT_DISABLE			(0x1 << 1)
+#define DCICIC_FUN_INT_ENABLE			0
+#define DCICIC_FUN_INT_MASK				(0x1 << 1)
+#define DCICIC_FREEZE_MASK_CHANGED		0
+#define DCICIC_FREEZE_MASK_FORZEN		(0x1 << 3)
+#define DCICIC_FREEZE_MASK_MASK			(0x1 << 3)
+#define DCICIC_EXT_SIG_EX_DISABLE		0
+#define DCICIC_EXT_SIG_EN_ENABLE		(0x1 << 16)
+#define DCICIC_EXT_SIG_EN_MASK			(0x1 << 16)
+
+#define DCICS_ROI_MATCH_STAT_MASK		0xFFFF
+#define DCICS_EI_STAT_PENDING			(0x1 << 16)
+#define DCICS_EI_STAT_NO_PENDING		0
+#define DCICS_FI_STAT_PENDING			(0x1 << 17)
+#define DCICS_FI_STAT_NO_PENDING		0
+
+#define DCICRC_ROI_START_OFFSET_X_MASK	0x1FFF
+#define DCICRC_ROI_START_OFFSET_X_SHIFT	0
+#define DCICRC_ROI_START_OFFSET_Y_MASK	(0xFFF << 16)
+#define DCICRC_ROI_START_OFFSET_Y_SHIFT	16
+#define DCICRC_ROI_CHANGED				0
+#define DCICRC_ROI_FROZEN				(0x1 << 30)
+#define DCICRC_ROI_ENABLE				(0x1 << 31)
+#define DCICRC_ROI_DISABLE				0
+
+#define DCICRS_ROI_END_OFFSET_X_MASK	0x1FFF
+#define DCICRS_ROI_END_OFFSET_X_SHIFT	0
+#define DCICRS_ROI_END_OFFSET_Y_MASK	(0xFFF << 16)
+#define DCICRS_ROI_END_OFFSET_Y_SHIFT	16
+
+struct roi_regs {
+	u32 dcicrc;
+	u32 dcicrs;
+	u32 dcicrrs;
+	u32 dcicrcs;
+};
+
+struct dcic_regs {
+	u32 dcicc;
+	u32 dcicic;
+	u32 dcics;
+	u32 dcic_reserved;
+	struct roi_regs ROI[16];
+};
+
+struct dcic_mux {
+	char dcic[16];
+	u32 val;
+};
+
+struct bus_mux {
+	char name[16];
+	int reg;
+	int shift;
+	int mask;
+	int dcic_mux_num;
+	const struct dcic_mux *dcics;
+};
+
+struct dcic_info {
+	int bus_mux_num;
+	const struct bus_mux *buses;
+};
+
+struct dcic_data {
+	struct regmap *regmap;
+	struct device *dev;
+	struct dcic_regs *regs;
+	const struct bus_mux *buses;
+	u32 bus_n;
+	u32 mux_n;
+	struct clk *disp_axi_clk;
+	struct clk *dcic_clk;
+	struct mutex lock;
+	struct completion roi_crc_comp;
+	struct class *class;
+	int major;
+	struct cdev cdev;	/* Char device structure */
+	dev_t devt;
+	unsigned int result;
+};
+#endif