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[v2,5/5] fbdev/ssd1307fb: clear screen in probe

Message ID ac6aa17b8cff892f15a726cdd17487e42dc7ad66.1484303628.git.jsarha@ti.com (mailing list archive)
State New, archived
Headers show

Commit Message

Jyri Sarha Jan. 13, 2017, 10:35 a.m. UTC 
From: Tomi Valkeinen <tomi.valkeinen@ti.com>

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.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ti.com>
Signed-off-by: Jyri Sarha <jsarha@ti.com>
---
 drivers/video/fbdev/ssd1307fb.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)
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Patch

diff --git a/drivers/video/fbdev/ssd1307fb.c b/drivers/video/fbdev/ssd1307fb.c
index 616a6a3..5c87ae4 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);