diff options
Diffstat (limited to 'drivers/staging/msm/mddi_ext.c')
| -rw-r--r-- | drivers/staging/msm/mddi_ext.c | 320 |
1 files changed, 0 insertions, 320 deletions
diff --git a/drivers/staging/msm/mddi_ext.c b/drivers/staging/msm/mddi_ext.c deleted file mode 100644 index c0c168c7199d..000000000000 --- a/drivers/staging/msm/mddi_ext.c +++ /dev/null @@ -1,320 +0,0 @@ -/* Copyright (c) 2008-2009, Code Aurora Forum. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 and - * only version 2 as published by the Free Software Foundation. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA - * 02110-1301, USA. - */ - -#include <linux/module.h> -#include <linux/kernel.h> -#include <linux/sched.h> -#include <linux/time.h> -#include <linux/init.h> -#include <linux/interrupt.h> -#include <linux/spinlock.h> -#include <linux/delay.h> -#include <mach/hardware.h> -#include <asm/io.h> - -#include <asm/system.h> -#include <asm/mach-types.h> -#include <linux/semaphore.h> -#include <linux/uaccess.h> -#include <linux/clk.h> -#include <mach/clk.h> -#include <linux/platform_device.h> - -#include "msm_fb.h" -#include "mddihosti.h" - -static int mddi_ext_probe(struct platform_device *pdev); -static int mddi_ext_remove(struct platform_device *pdev); - -static int mddi_ext_off(struct platform_device *pdev); -static int mddi_ext_on(struct platform_device *pdev); - -static struct platform_device *pdev_list[MSM_FB_MAX_DEV_LIST]; -static int pdev_list_cnt; - -static int mddi_ext_suspend(struct platform_device *pdev, pm_message_t state); -static int mddi_ext_resume(struct platform_device *pdev); - -#ifdef CONFIG_HAS_EARLYSUSPEND -static void mddi_ext_early_suspend(struct early_suspend *h); -static void mddi_ext_early_resume(struct early_suspend *h); -#endif - -static struct platform_driver mddi_ext_driver = { - .probe = mddi_ext_probe, - .remove = mddi_ext_remove, -#ifndef CONFIG_HAS_EARLYSUSPEND -#ifdef CONFIG_PM - .suspend = mddi_ext_suspend, - .resume = mddi_ext_resume, -#endif -#endif - .resume_early = NULL, - .resume = NULL, - .shutdown = NULL, - .driver = { - .name = "mddi_ext", - }, -}; - -static struct clk *mddi_ext_clk; -static struct mddi_platform_data *mddi_ext_pdata; - -extern int int_mddi_ext_flag; - -static int mddi_ext_off(struct platform_device *pdev) -{ - int ret = 0; - - ret = panel_next_off(pdev); - mddi_host_stop_ext_display(); - - return ret; -} - -static int mddi_ext_on(struct platform_device *pdev) -{ - int ret = 0; - u32 clk_rate; - struct msm_fb_data_type *mfd; - - mfd = platform_get_drvdata(pdev); - - clk_rate = mfd->fbi->var.pixclock; - clk_rate = min(clk_rate, mfd->panel_info.clk_max); - - if (mddi_ext_pdata && - mddi_ext_pdata->mddi_sel_clk && - mddi_ext_pdata->mddi_sel_clk(&clk_rate)) - printk(KERN_ERR - "%s: can't select mddi io clk targate rate = %d\n", - __func__, clk_rate); - - if (clk_set_min_rate(mddi_ext_clk, clk_rate) < 0) - printk(KERN_ERR "%s: clk_set_min_rate failed\n", - __func__); - - mddi_host_start_ext_display(); - ret = panel_next_on(pdev); - - return ret; -} - -static int mddi_ext_resource_initialized; - -static int mddi_ext_probe(struct platform_device *pdev) -{ - struct msm_fb_data_type *mfd; - struct platform_device *mdp_dev = NULL; - struct msm_fb_panel_data *pdata = NULL; - int rc; - resource_size_t size ; - u32 clk_rate; - - if ((pdev->id == 0) && (pdev->num_resources >= 0)) { - mddi_ext_pdata = pdev->dev.platform_data; - - size = resource_size(&pdev->resource[0]); - msm_emdh_base = ioremap(pdev->resource[0].start, size); - - MSM_FB_INFO("external mddi base address = 0x%x\n", - pdev->resource[0].start); - - if (unlikely(!msm_emdh_base)) - return -ENOMEM; - - mddi_ext_resource_initialized = 1; - return 0; - } - - if (!mddi_ext_resource_initialized) - return -EPERM; - - mfd = platform_get_drvdata(pdev); - - if (!mfd) - return -ENODEV; - - if (mfd->key != MFD_KEY) - return -EINVAL; - - if (pdev_list_cnt >= MSM_FB_MAX_DEV_LIST) - return -ENOMEM; - - mdp_dev = platform_device_alloc("mdp", pdev->id); - if (!mdp_dev) - return -ENOMEM; - - /* - * link to the latest pdev - */ - mfd->pdev = mdp_dev; - mfd->dest = DISPLAY_EXT_MDDI; - - /* - * alloc panel device data - */ - if (platform_device_add_data - (mdp_dev, pdev->dev.platform_data, - sizeof(struct msm_fb_panel_data))) { - printk(KERN_ERR "mddi_ext_probe: platform_device_add_data failed!\n"); - platform_device_put(mdp_dev); - return -ENOMEM; - } - /* - * data chain - */ - pdata = mdp_dev->dev.platform_data; - pdata->on = mddi_ext_on; - pdata->off = mddi_ext_off; - pdata->next = pdev; - - /* - * get/set panel specific fb info - */ - mfd->panel_info = pdata->panel_info; - mfd->fb_imgType = MDP_RGB_565; - - clk_rate = mfd->panel_info.clk_max; - if (mddi_ext_pdata && - mddi_ext_pdata->mddi_sel_clk && - mddi_ext_pdata->mddi_sel_clk(&clk_rate)) - printk(KERN_ERR - "%s: can't select mddi io clk targate rate = %d\n", - __func__, clk_rate); - - if (clk_set_max_rate(mddi_ext_clk, clk_rate) < 0) - printk(KERN_ERR "%s: clk_set_max_rate failed\n", __func__); - mfd->panel_info.clk_rate = mfd->panel_info.clk_min; - - /* - * set driver data - */ - platform_set_drvdata(mdp_dev, mfd); - - /* - * register in mdp driver - */ - rc = platform_device_add(mdp_dev); - if (rc) - goto mddi_ext_probe_err; - - pdev_list[pdev_list_cnt++] = pdev; - -#ifdef CONFIG_HAS_EARLYSUSPEND - mfd->mddi_ext_early_suspend.level = EARLY_SUSPEND_LEVEL_DISABLE_FB; - mfd->mddi_ext_early_suspend.suspend = mddi_ext_early_suspend; - mfd->mddi_ext_early_suspend.resume = mddi_ext_early_resume; - register_early_suspend(&mfd->mddi_ext_early_suspend); -#endif - - return 0; - -mddi_ext_probe_err: - platform_device_put(mdp_dev); - return rc; -} - -static int mddi_ext_is_in_suspend; - -static int mddi_ext_suspend(struct platform_device *pdev, pm_message_t state) -{ - if (mddi_ext_is_in_suspend) - return 0; - - mddi_ext_is_in_suspend = 1; - - if (clk_set_min_rate(mddi_ext_clk, 0) < 0) - printk(KERN_ERR "%s: clk_set_min_rate failed\n", __func__); - - clk_disable(mddi_ext_clk); - disable_irq(INT_MDDI_EXT); - - return 0; -} - -static int mddi_ext_resume(struct platform_device *pdev) -{ - struct msm_fb_data_type *mfd; - - mfd = platform_get_drvdata(pdev); - - if (!mddi_ext_is_in_suspend) - return 0; - - mddi_ext_is_in_suspend = 0; - enable_irq(INT_MDDI_EXT); - - clk_enable(mddi_ext_clk); - - return 0; -} - -#ifdef CONFIG_HAS_EARLYSUSPEND -static void mddi_ext_early_suspend(struct early_suspend *h) -{ - pm_message_t state; - struct msm_fb_data_type *mfd = container_of(h, struct msm_fb_data_type, - mddi_ext_early_suspend); - - state.event = PM_EVENT_SUSPEND; - mddi_ext_suspend(mfd->pdev, state); -} - -static void mddi_ext_early_resume(struct early_suspend *h) -{ - struct msm_fb_data_type *mfd = container_of(h, struct msm_fb_data_type, - mddi_ext_early_suspend); - mddi_ext_resume(mfd->pdev); -} -#endif - -static int mddi_ext_remove(struct platform_device *pdev) -{ - iounmap(msm_emdh_base); - return 0; -} - -static int mddi_ext_register_driver(void) -{ - return platform_driver_register(&mddi_ext_driver); -} - -static int __init mddi_ext_driver_init(void) -{ - int ret; - - mddi_ext_clk = clk_get(NULL, "emdh_clk"); - if (IS_ERR(mddi_ext_clk)) { - printk(KERN_ERR "can't find emdh_clk\n"); - return PTR_ERR(mddi_ext_clk); - } - clk_enable(mddi_ext_clk); - - ret = mddi_ext_register_driver(); - if (ret) { - clk_disable(mddi_ext_clk); - clk_put(mddi_ext_clk); - printk(KERN_ERR "mddi_ext_register_driver() failed!\n"); - return ret; - } - mddi_init(); - - return ret; -} - -module_init(mddi_ext_driver_init); |