linux-toradex.git/include/linux/backlight.h, branch v2.6.38.6

backlight: Allow properties to be passed at registration

2010-03-16T19:47:54+00:00

Values such as max_brightness should be set before backlights are
registered, but the current API doesn't allow that. Add a parameter to
backlight_device_register and update drivers to ensure that they
set this correctly.

Signed-off-by: Matthew Garrett 
Signed-off-by: Richard Purdie

backlight: Add backlight_device parameter to check_fb

2010-03-16T19:47:54+00:00

check_fb from backlight_ops lacks a reference to the backlight_device
that's being referred to. Add this parameter so a backlight_device
can be mapped to a single framebuffer, especially if the same driver
handles multiple devices on a single system.

Signed-off-by: Bruno Prémont 
Signed-off-by: Richard Purdie

backlight: Revert some const qualifiers

2010-03-16T19:47:53+00:00

9905a43b2d563e6f89e4c63c4278ada03f2ebb14 went a little to far with const
qualifiers as there are legitiment cases where the function pointers
can change (machine specific setup code for example).

Signed-off-by: Richard Purdie

backlight: Constify struct backlight_ops

2009-12-16T11:33:46+00:00

Signed-off-by: Emese Revfy 
Signed-off-by: Richard Purdie

backlight: Allow drivers to update the core, and generate events on changes

2009-09-21T20:03:58+00:00

Certain hardware will send us events when the backlight brightness
changes. Add a function to update the value in the core, and
additionally send a uevent so that userspace can pop up appropriate
UI. The uevents are flagged depending on whether the update originated
in the kernel or from userspace, making it easier to only display UI
at the appropriate time.

Signed-off-by: Matthew Garrett 
Signed-off-by: Richard Purdie

backlight: Add suspend/resume support to the backlight core

2009-01-08T15:37:43+00:00

Add suspend/resume support to the backlight core and enable use of it
by appropriate drivers.

Signed-off-by: Richard Purdie

backlight: Convert corgi backlight driver into a more generic driver

2007-10-11T21:24:13+00:00

Convert the corgi backlight driver to a more generic version
so it can be reused by other code rather than being Zaurus/PXA
specific.

Signed-off-by: Richard Purdie

backlight: Convert from struct class_device to struct device

2007-07-16T00:20:23+00:00

Convert the backlight and LCD classes from struct class_device
to struct device since class_device is scheduled for removal.

One nasty API break is the backlight power attribute has had to be
renamed to bl_power and the LCD power attribute has had to be renamed
to lcd_power since the original names clash with the core. I can't see
a way around this.

Signed-off-by: Richard Purdie 
Acked-by: Greg Kroah-Hartman

backlight: Separate backlight properties from backlight ops pointers

2007-02-20T09:26:53+00:00

Per device data such as brightness belongs to the indivdual device
and should therefore be separate from the the backlight operation
function pointers. This patch splits the two types of data and
allows simplifcation of some code.

Signed-off-by: Richard Purdie

backlight: Convert semaphore -> mutex

2007-02-20T08:38:45+00:00

Convert internal semaphore to a mutex

Signed-off-by: Richard Purdie