shinys000114/linux
1
0
Fork 0
mirror of https://github.com/hardkernel/linux.git synced 2026-06-10 12:57:06 +09:00
Code Issues Packages Projects Releases Wiki Activity

rk3188 lcdc:fix bug in rk3188_lcdc_open/close

Browse Source 
before disable lcdc clk,we must make sure
	the lcdc enter stanby and finish read or write
	the lcdc register。
	Before this commit,some hdmi hotplug crash made
	by thie issue
This commit is contained in:
yxj
2013-03-11 14:48:28 +08:00
parent a7331e0a4a
commit e846d213ef
1 changed files with 3 additions and 2 deletions
Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/video/rockchip/lcdc/rk3188_lcdc.c
View File

@@ -65,7 +65,7 @@ static int rk3188_lcdc_clk_disable(struct rk3188_lcdc_device *lcdc_dev)
spin_lock(&lcdc_dev->reg_lock);
lcdc_dev->clk_on = 0;
spin_unlock(&lcdc_dev->reg_lock);
mdelay(25);
clk_disable(lcdc_dev->dclk);
clk_disable(lcdc_dev->hclk);
clk_disable(lcdc_dev->aclk);
@@ -310,6 +310,8 @@ static int rk3188_lcdc_open(struct rk_lcdc_device_driver *dev_drv,int layer_id,b
if((!open) && (!lcdc_dev->atv_layer_cnt)) //when all layer closed,disable clk
{
lcdc_msk_reg(lcdc_dev,INT_STATUS,m_FS_INT_CLEAR,v_FS_INT_CLEAR(1));
rk3188_lcdc_reg_update(dev_drv);
rk3188_lcdc_clk_disable(lcdc_dev);
}
@@ -927,7 +929,6 @@ static int rk3188_lcdc_early_suspend(struct rk_lcdc_device_driver *dev_drv)
return 0;
}
mdelay(25);
rk3188_lcdc_clk_disable(lcdc_dev);
return 0;
}