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| author | Marko Kohtala <marko.kohtala@okoko.fi> | 2019-06-18 10:41:08 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2019-10-07 18:56:30 +0200 |
| commit | 043f0229f4424060db1be97f85145ec5f8ad67d7 (patch) | |
| tree | 96734b7f7d07fdd6095ebec5b6ea2335e6d5f8e7 /drivers/video | |
| parent | bd5b6a7c89ef09cf8131716232c8da2c1b5ea5bb (diff) | |
| download | linux-stable-043f0229f4424060db1be97f85145ec5f8ad67d7.tar.gz linux-stable-043f0229f4424060db1be97f85145ec5f8ad67d7.tar.bz2 linux-stable-043f0229f4424060db1be97f85145ec5f8ad67d7.zip | |
video: ssd1307fb: Start page range at page_offset
[ Upstream commit dd9782834dd9dde3624ff1acea8859f3d3e792d4 ]
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: 301bc0675b67 ("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>
Diffstat (limited to 'drivers/video')
| -rw-r--r-- | drivers/video/fbdev/ssd1307fb.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/video/fbdev/ssd1307fb.c b/drivers/video/fbdev/ssd1307fb.c index 6439231f2db2..da565f39c9b0 100644 --- a/drivers/video/fbdev/ssd1307fb.c +++ b/drivers/video/fbdev/ssd1307fb.c @@ -433,7 +433,7 @@ 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; |