linux-toradex.git/drivers/video/nvidia/nv_backlight.c, branch v3.4.70

backlight: add backlight type

2011-03-23T00:43:59+00:00

There may be multiple ways of controlling the backlight on a given
machine.  Allow drivers to expose the type of interface they are
providing, making it possible for userspace to make appropriate policy
decisions.

Signed-off-by: Matthew Garrett 
Cc: Richard Purdie 
Cc: Chris Wilson 
Cc: David Airlie 
Cc: Alex Deucher 
Cc: Ben Skeggs 
Cc: Zhang Rui 
Cc: Len Brown 
Cc: Jesse Barnes 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

backlight: constify backlight_ops

2010-11-16T13:14:02+00:00

backlight_device_register has been expecting a const "ops" argument, and using
it as such, since 9905a43b2d563e6f89e4c63c4278ada03f2ebb14. Let's make the
remaining backlight_ops instances const.

Inspired by hunks of the grsecurity patch, updated for newer kernels.

Signed-off-by: Lionel Debroux 
Acked-by: Ingo Molnar 
Signed-off-by: Jiri Kosina

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: 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

[PATCH] nvidiafb backlight: Fix implicit declaration in nv_backlight

2007-03-06T17:30:24+00:00

drivers/video/nvidia/nv_backlight.c: In function 'nvidia_bl_init':
drivers/video/nvidia/nv_backlight.c:103: error: implicit declaration of function 'pmac_has_backlight_type'

Signed-off-by: Dave Jones 
Signed-off-by: Antonino Daplas 
Cc: James Simmons 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

backlight: Fix nvidia backlight initial brightness

2007-03-05T08:49:38+00:00

Fix a mix up when the nvidia driver was converted resulting
in the backlight having an incorrect initial brightness.

Signed-off-by: Richard Purdie

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: Clean up pmac_backlight handling

2007-02-20T09:26:40+00:00

Move the setting/unsetting of pmac_backlight into the
backlight core instead of doing it in each driver.

Signed-off-by: Richard Purdie

backlight: Rework backlight/fb interaction simplifying, lots

2007-02-20T08:38:46+00:00

fb_info->bl_mutex is badly thought out and the backlight class doesn't
need it if the framebuffer/backlight register/unregister order is
consistent, particularly after the backlight locking fixes.

Fix the drivers to use the order:

backlight_device_register()
register_framebuffer()
unregister_framebuffer()
backlight_device_unregister()

and turn bl_mutex into a lock for the bl_curve data only.

Signed-off-by: Richard Purdie

backlight: Remove uneeded nvidia set_power calls

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

nvidia_bl_set_power isn't needed since the backlight class handles
this by receiving fb events itself and calling update_status so
remove it.

Signed-off-by: Richard Purdie