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authorManjunathappa, Prakash <prakash.pm@ti.com>2012-07-24 08:15:25 +0400
committerFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>2012-07-29 16:24:14 +0400
commitf7c848b6ef31af09925bb6f4c79e236ca9f94ed9 (patch)
treef44ee927212d8d754e3cee04f9ea8c57c6718c08 /drivers/video
parentac33a207b13a70bbca6e58094e28bd92b9fc1ff3 (diff)
downloadlinux-f7c848b6ef31af09925bb6f4c79e236ca9f94ed9.tar.xz
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>
Diffstat (limited to 'drivers/video')
-rw-r--r--drivers/video/da8xx-fb.c9
1 files changed, 5 insertions, 4 deletions
diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c
index e81a4585902b..ca9943aae83b 100644
--- a/drivers/video/da8xx-fb.c
+++ b/drivers/video/da8xx-fb.c
@@ -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();