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da8xx-fb: do not turn ON LCD backlight unless LCDC is enabled 

LCD blink is observed during suspend/resume and blank/unblank
operations as backlight is ON during LCDC disable and enable.
So make sure to turn OFF backlight before disabling and turn
it ON after enabling.

Signed-off-by: Manjunathappa, Prakash <prakash.pm@ti.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
This commit is contained in:
Manjunathappa, Prakash 2012-07-24 09:45:25 +05:30 committed by Florian Tobias Schandinat
parent ac33a207b1
commit f7c848b6ef
1 changed files with 5 additions and 4 deletions
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9
drivers/video/da8xx-fb.c
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@ -1038,10 +1038,10 @@ static int cfb_blank(int blank, struct fb_info *info)
par->blank = blank;
switch (blank) {
case FB_BLANK_UNBLANK:
lcd_enable_raster();
if (par->panel_power_ctrl)
par->panel_power_ctrl(1);
lcd_enable_raster();
break;
case FB_BLANK_NORMAL:
case FB_BLANK_VSYNC_SUSPEND:
@ -1422,11 +1422,12 @@ static int fb_resume(struct platform_device *dev)
struct da8xx_fb_par *par = info->par;
console_lock();
clk_enable(par->lcdc_clk);
lcd_enable_raster();
if (par->panel_power_ctrl)
par->panel_power_ctrl(1);
clk_enable(par->lcdc_clk);
lcd_enable_raster();
fb_set_suspend(info, 0);
console_unlock();