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Commit f7c848b6 authored by Manjunathappa, Prakash's avatar Manjunathappa, Prakash Committed by Florian Tobias Schandinat
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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: default avatarManjunathappa, Prakash <prakash.pm@ti.com>
Signed-off-by: default avatarFlorian Tobias Schandinat <FlorianSchandinat@gmx.de>
parent ac33a207

drivers/video/da8xx-fb.c

+5 −4
Original line number Original line Diff line number Diff line
@@ -1038,10 +1038,10 @@ static int cfb_blank(int blank, struct fb_info *info) 
	par->blank = blank;

	par->blank = blank;

	switch (blank) {

	switch (blank) {

	case FB_BLANK_UNBLANK:

	case FB_BLANK_UNBLANK:

		lcd_enable_raster();



		if (par->panel_power_ctrl)

		if (par->panel_power_ctrl)

			par->panel_power_ctrl(1);

			par->panel_power_ctrl(1);



		lcd_enable_raster();

		break;

		break;

	case FB_BLANK_NORMAL:

	case FB_BLANK_NORMAL:

	case FB_BLANK_VSYNC_SUSPEND:

	case FB_BLANK_VSYNC_SUSPEND:
@@ -1422,11 +1422,12 @@ static int fb_resume(struct platform_device *dev) 
	struct da8xx_fb_par *par = info->par;

	struct da8xx_fb_par *par = info->par;





	console_lock();

	console_lock();

	clk_enable(par->lcdc_clk);

	lcd_enable_raster();



	if (par->panel_power_ctrl)

	if (par->panel_power_ctrl)

		par->panel_power_ctrl(1);

		par->panel_power_ctrl(1);





	clk_enable(par->lcdc_clk);

	lcd_enable_raster();

	fb_set_suspend(info, 0);

	fb_set_suspend(info, 0);

	console_unlock();

	console_unlock();