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 <[email protected]> --- 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 _______________________________________________ Davinci-linux-open-source mailing list [email protected] http://linux.davincidsp.com/mailman/listinfo/davinci-linux-open-source
