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video: ssd1307fb: Start page range at page_offset

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[ Upstream commit dd9782834d ]

The page_offset was only applied to the end of the page range. This caused
the display updates to cause a scrolling effect on the display because the
amount of data written to the display did not match the range display
expected.

Fixes: 301bc0675b ("video: ssd1307fb: Make use of horizontal addressing mode")
Signed-off-by: Marko Kohtala <marko.kohtala@okoko.fi>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Daniel Vetter <daniel@ffwll.ch>
Cc: David Airlie <airlied@linux.ie>
Cc: Michal Vokáč <michal.vokac@ysoft.com>
Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190618074111.9309-4-marko.kohtala@okoko.fi
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Marko Kohtala
2019-06-18 10:41:08 +03:00
committed by Greg Kroah-Hartman
parent 0372fc304a
commit e68cb861bf
1 changed files with 1 additions and 1 deletions
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2
drivers/video/fbdev/ssd1307fb.c
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@@ -430,7 +430,7 @@ static int ssd1307fb_init(struct ssd1307fb_par *par)
if (ret < 0)
return ret;
ret = ssd1307fb_write_cmd(par->client, 0x0);
ret = ssd1307fb_write_cmd(par->client, par->page_offset);
if (ret < 0)
return ret;