da8xx-fb: enable LCDC if FB is unblanked (67900814) · Commits · 戴 / test

It is expected that LCDC to continue to be disabled after resume if it is blanked before suspend. This is also true for DVFS. But it is observed that LCDC being enabled after suspend/resume cycle or DVFS. Correcting it by having check for FB_BLANK_UNBLANK before enabling. Signed-off-by:

Manjunathappa, Prakash <prakash.pm@ti.com> Signed-off-by:

Florian Tobias Schandinat <FlorianSchandinat@gmx.de>

drivers/video/da8xx-fb.c

+7 −4

Original line number	Diff line number	Diff line
		@@ -988,6 +988,7 @@ static int lcd_da8xx_cpufreq_transition(struct notifier_block *nb,
		par->lcd_fck_rate = clk_get_rate(par->lcdc_clk);
		lcd_disable_raster(true);
		lcd_calc_clk_divider(par);
		if (par->blank == FB_BLANK_UNBLANK)
		lcd_enable_raster();
		}
		}
		@@ -1514,10 +1515,12 @@ static int fb_resume(struct platform_device *dev)

		console_lock();
		clk_enable(par->lcdc_clk);
		if (par->blank == FB_BLANK_UNBLANK) {
		lcd_enable_raster();

		if (par->panel_power_ctrl)
		par->panel_power_ctrl(1);
		}

		fb_set_suspend(info, 0);
		console_unlock();

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