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fbdev/ssd1307fb: clear screen in probe

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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>
This commit is contained in:
Tomi Valkeinen 2017-02-08 16:44:00 +01:00 committed by Bartlomiej Zolnierkiewicz
parent ba14301e03
commit 6e376822ee
1 changed files with 2 additions and 3 deletions
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5
drivers/video/fbdev/ssd1307fb.c
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@ -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);