From: Tomi Valkeinen <tomi.valkeinen@ti.com>
Date: Wed, 8 Feb 2017 15:44:00 +0000 (+0100)
Subject: fbdev/ssd1307fb: clear screen in probe
X-Git-Tag: v4.11-rc1~74^2~4
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=6e376822ee9e06c5fa81424c8cf9218abfabefff;p=karo-tx-linux.git

fbdev/ssd1307fb: clear screen in probe

SSD1306 does not clear the panel's framebuffer automatically, even if a
HW reset happens, so we need to do that at probe time before enabling
the panel.

Cc: Rob Herring <robh+dt@kernel.org>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Benoît Cousson <bcousson@baylibre.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
---

diff --git a/drivers/video/fbdev/ssd1307fb.c b/drivers/video/fbdev/ssd1307fb.c
index 616a6a3fabf9..5c87ae4bac6a 100644
--- a/drivers/video/fbdev/ssd1307fb.c
+++ b/drivers/video/fbdev/ssd1307fb.c
@@ -441,9 +441,8 @@ static int ssd1307fb_init(struct ssd1307fb_par *par)
 	if (ret < 0)
 		return ret;
 
-	/* Clear the screen if we could not give reset at probe time */
-	if (!par->reset)
-		ssd1307fb_update_display(par);
+	/* Clear the screen */
+	ssd1307fb_update_display(par);
 
 	/* Turn on the display */
 	ret = ssd1307fb_write_cmd(par->client, SSD1307FB_DISPLAY_ON);