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rk616:add lvds suspend support

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This commit is contained in:
yxj
2013-05-02 11:33:05 +08:00
parent 6f84d67351
commit c5d7598c13
2 changed files with 64 additions and 5 deletions
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53
drivers/video/display/transmitter/rk616_vif.c
View File

@@ -2,10 +2,10 @@
#include <linux/init.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/mfd/rk616.h>
#include <linux/rk_fb.h>
#include "rk616_vif.h"
struct mfd_rk616 *g_rk616;
struct rk616_vif *g_vif;
extern int rk616_pll_set_rate(struct mfd_rk616 *rk616,int id,u32 cfg_val,u32 frac);
/*rk616 video interface config*/
@@ -663,27 +663,70 @@ static int rk616_display_router_cfg(struct mfd_rk616 *rk616,rk_screen *screen,bo
int rk610_lcd_scaler_set_param(rk_screen *screen,bool enable )//enable:0 bypass 1: scale
{
int ret;
struct mfd_rk616 *rk616 = g_rk616;
struct mfd_rk616 *rk616 = g_vif->rk616;
if(!rk616)
{
printk(KERN_ERR "%s:mfd rk616 is null!\n",__func__);
return -1;
}
g_vif->screen = screen;
ret = rk616_display_router_cfg(rk616,screen,enable);
return ret;
}
#if defined(CONFIG_HAS_EARLYSUSPEND)
static void rk616_vif_early_suspend(struct early_suspend *h)
{
struct rk616_vif *vif = container_of(h, struct rk616_vif,early_suspend);
struct mfd_rk616 *rk616 = vif->rk616;
u32 val = 0;
int ret = 0;
val &= ~(LVDS_CH1_PWR_EN | LVDS_CH0_PWR_EN | LVDS_CBG_PWR_EN);
val |= LVDS_PLL_PWR_DN |(LVDS_CH1_PWR_EN << 16) | (LVDS_CH0_PWR_EN << 16) |
(LVDS_CBG_PWR_EN << 16) | (LVDS_PLL_PWR_DN << 16);
ret = rk616->write_dev(rk616,CRU_LVDS_CON0,&val);
}
static void rk616_vif_late_resume(struct early_suspend *h)
{
struct rk616_vif *vif = container_of(h, struct rk616_vif,early_suspend);
struct mfd_rk616 *rk616 = vif->rk616;
rk616_lvds_cfg(rk616,vif->screen);
}
#endif
static int rk616_vif_probe(struct platform_device *pdev)
{
struct rk616_vif *vif = NULL;
struct mfd_rk616 *rk616 = NULL;
struct mfd_rk616 *rk616 = dev_get_drvdata(pdev->dev.parent);
vif = kzalloc(sizeof(struct rk616_vif),GFP_KERNEL);
if(!vif)
{
printk(KERN_ALERT "alloc for struct rk616_vif fail\n");
return -ENOMEM;
}
rk616 = dev_get_drvdata(pdev->dev.parent);
if(!rk616)
{
dev_err(&pdev->dev,"null mfd device rk616!\n");
return -ENODEV;
}
else
g_rk616 = rk616;
g_vif = vif;
vif->rk616 = rk616;
#ifdef CONFIG_HAS_EARLYSUSPEND
vif->early_suspend.suspend = rk616_vif_early_suspend;
vif->early_suspend.resume = rk616_vif_late_resume;
vif->early_suspend.level = EARLY_SUSPEND_LEVEL_DISABLE_FB - 1;
register_early_suspend(&vif->early_suspend);
#endif
dev_info(&pdev->dev,"rk616 vif probe success!\n");

16
drivers/video/display/transmitter/rk616_vif.h Normal file
View File

@@ -0,0 +1,16 @@
#ifndef __RK616_VIF_H__
#define __RK616_VIF_H__
#include<linux/mfd/rk616.h>
#include<linux/earlysuspend.h>
#include<linux/rk_screen.h>
struct rk616_vif {
struct mfd_rk616 *rk616;
rk_screen *screen;
#ifdef CONFIG_HAS_EARLYSUSPEND
struct early_suspend early_suspend;
#endif
};
#endif