[PATCH] da8xx-fb: do not turn ON LCD backlight unless LCDC is enabled
STALE5179d
From: Manjunathappa, Prakash <hidden>
Date: 2012-07-24 04:27:25
Subsystem:
framebuffer layer, the rest · Maintainers:
Helge Deller, Linus Torvalds
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 <redacted> --- drivers/video/da8xx-fb.c | 9 +++++---- 1 files changed, 5 insertions(+), 4 deletions(-)
diff --git a/drivers/video/da8xx-fb.c b/drivers/video/da8xx-fb.c
index 0fb4d7d..1a569ae 100644
--- a/drivers/video/da8xx-fb.c
+++ b/drivers/video/da8xx-fb.c@@ -1056,10 +1056,10 @@ 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_POWERDOWN: if (par->panel_power_ctrl)
@@ -1417,11 +1417,12 @@ 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();
--
1.7.1