kernel.git/drivers/video/fbdev/ssd1307fb.c, branch linux-4.4.y

video: ssd1307fb: Start page range at page_offset

2019-10-07T19:00:59Z

[ 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 Cc: Mark Rutland Cc: Rob Herring Cc: Daniel Vetter Cc: David Airlie Cc: Michal Vokáč Signed-off-by: Bartlomiej Zolnierkiewicz Link: https://patchwork.freedesktop.org/patch/msgid/20190618074111.9309-4-marko.kohtala@okoko.fi Signed-off-by: Sasha Levin

fbdev: ssd1307fb: add ssd1309 support

2015-09-24T11:10:26Z

The ssd1307fb driver supports a lot of chips from the ssd130xfb series. This patch adds the ssd1309 chip, a 128x64 OLED driver chip. It is very similar to the other chips and only has some definitions added to support it. Signed-off-by: Olliver Schinagl Acked-by: Rob Herring Acked-by: Prabhakar Lad Signed-off-by: Tomi Valkeinen

fbdev: ssd1307fb: alphabetize headers

2015-09-24T11:10:16Z

This patch sorts the headers on ssd1307fb driver. Signed-off-by: Olliver Schinagl Signed-off-by: Tomi Valkeinen

fbdev: ssd1307fb: fix error return code

2015-09-01T10:52:23Z

Propagate error code on failure. Also changed %ld to %d in dev_err to use ret variable rather than putting two calls to PTR_ERR. A simplified version of the semantic match that finds the first problem is as follows: (http://coccinelle.lip6.fr/) // @@ identifier ret; expression e1,e2; @@ ( if (\(ret < 0\|ret != 0\)) { ... return ret; } | ret = 0 ) ... when != ret = e1 when != &ret *if(...) { ... when != ret = e2 when forall return ret; } // Signed-off-by: Julia Lawall Signed-off-by: Tomi Valkeinen

video: fbdev: Drop owner assignment from i2c_driver

2015-08-20T09:03:53Z

i2c_driver does not need to set an owner because i2c_register_driver() will set it. Signed-off-by: Krzysztof Kozlowski Signed-off-by: Tomi Valkeinen

fbdev: ssd1307fb: fix logical error

2015-05-27T09:54:48Z

The logical not needs to be done after the bit masking. Fixes: a3998fe03e87 ("fbdev: ssd1307fb: Unify init code and obtain hw specific bits from DT") Signed-off-by: Thomas Niederprüm Reported-by: Dan Carpenter Signed-off-by: Tomi Valkeinen

fbdev: ssd1307fb: potential ERR_PTR dereference

2015-05-27T09:54:46Z

The error handling got shifted down a few lines from where it was supposed to be for some reason. Fixes: a14a7ba8cb0f ('fbdev: ssd1307fb: add backlight controls for setting the contrast') Signed-off-by: Dan Carpenter Acked-by: Maxime Ripard Signed-off-by: Tomi Valkeinen

fbdev: ssd1307fb: Add blank mode

2015-05-27T09:54:39Z

This patch adds ssd1307fb_blank() to make the framebuffer capable of blanking. Signed-off-by: Thomas Niederprüm Signed-off-by: Tomi Valkeinen

fbdev: ssd1307fb: add backlight controls for setting the contrast

2015-05-27T09:54:37Z

The backlight class is used to create userspace handles for setting the OLED contrast. Signed-off-by: Thomas Niederprüm Acked-by: Maxime Ripard Signed-off-by: Tomi Valkeinen

fbdev: ssd1307fb: Turn off display on driver unload.

2015-05-27T09:54:35Z

This patch turns off the display when the driver is unloaded. Signed-off-by: Thomas Niederprüm Acked-by: Maxime Ripard Signed-off-by: Tomi Valkeinen