BMC/Intel-BMC/linux.git/drivers/video/backlight/lp855x_bl.c, branch dev

backlight: lp855x: Don't clear level on suspend/blank

2015-06-23T14:47:33+00:00

Don't clear the backlight level when we're going into suspend or blanking. Instead, just temporarily set the level to 0 so we retain the value when we resume. Reported-by: Benson Leung Signed-off-by: Sean Paul Tested-by: Stephen Barber Reviewed-by: Benson Leung Acked-by: Milo Kim Signed-off-by: Lee Jones

backlight: lp855x: Add supply regulator to lp855x

2014-12-09T09:24:45+00:00

This patch adds a supply regulator to the lp855x platform data to facilitate powering on/off the 3V rail attached to the controller. Cc: Stéphane Marchesin Cc: Aaron Durbin Signed-off-by: Sean Paul Acked-by: Milo Kim Acked-by: Bryan Wu Acked-by: Jingoo Han Signed-off-by: Lee Jones

backlight: lp855x: Refactor DT parsing code

2014-12-09T09:24:42+00:00

This patch refactors the dt parsing code to avoid setting platform_data, instead just setting lp->pdata directly. This facilitates easier probe deferral since the current scheme would require us to clear out dev->platform_data before deferring. Cc: Stéphane Marchesin Signed-off-by: Sean Paul Acked-by: Milo Kim Acked-by: Bryan Wu Signed-off-by: Lee Jones

backlight: lp855x: Add blank line after declarations

2014-08-29T07:25:44+00:00

Fixed the following checkpatch warning. WARNING: Missing a blank line after declarations Signed-off-by: Jingoo Han Signed-off-by: Lee Jones

backlight: Remove trivial get_brightness implementations

2014-06-23T12:24:22+00:00

Since backlight core returns props.brightness in case get_brightness is not implemented trivial implementations are not needed anymore. Acked-by: Jingoo Han Signed-off-by: Andrzej Hajda Signed-off-by: Lee Jones

backlight: lp855x: remove unnecessary parentheses

2014-01-24T00:36:57+00:00

Remove unnecessary parentheses in order to fix the following checkpatch error. ERROR: return is not a function, parentheses are not required Signed-off-by: Jingoo Han Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

backlight: lp855x: use devm_backlight_device_register()

2013-11-13T03:09:18+00:00

Use devm_backlight_device_register() to make cleanup paths simpler. Also, unnecessary lp855x_backlight_unregister() is removed. Signed-off-by: Jingoo Han Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

backlight: use dev_get_platdata()

2013-11-13T03:09:16+00:00

Use the wrapper function for retrieving the platform data instead of accessing dev->platform_data directly. This is a cosmetic change to make the code simpler and enhance the readability. Signed-off-by: Jingoo Han Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

backlight: lp855x_bl: support new LP8555 device

2013-11-13T03:09:14+00:00

LP8555 is one of the LP855x family devices. This device needs pre_init_device() and post_init_device() driver structure. It's same as LP8557, so the device configuration code is shared with LP8557. Backlight outputs are generated from dual DC-DC boost converters. It's configurable EPROM settings which are defined in the platform data. Driver documentation and device tree bindings are updated. Signed-off-by: Milo Kim Signed-off-by: Jingoo Han Signed-off-by: Andrew Morton Signed-off-by: Linus Torvalds

backlight: lp855x: set zero brightness at FBBLANK

2013-07-26T08:44:51+00:00

When backlight turns on early from display, a white line can be seen on the screen. Therefore make sure backlight is off when we are under an fb blank event. Signed-off-by: Shingo Nakao Cc: Milo Kim Cc: Richard Purdie Signed-off-by: Oskar Andero Acked-by: Milo Kim Acked-by: Jingoo Han Signed-off-by: Tomi Valkeinen