linux-toradex.git/drivers/video/backlight/aat2870_bl.c, branch v4.9

backlight: Remove .owner field for drivers using module_platform_driver

2014-08-28T13:09:48+00:00

This patch removes the superflous .owner field for drivers which
use the module_platform_driver or platform_driver_register api,
as this is overriden in __platform_driver_register.

Signed-off-by: Peter Griffin 
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: aat2870: remove unnecessary OOM messages

2014-04-03T23:21:09+00:00

The site-specific OOM messages are unnecessary, because they duplicate
the MM subsystem generic OOM message.

Signed-off-by: Jingoo Han 
Acked-by: Jinyoung Park 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

backlight: aat2870: use devm_backlight_device_register()

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

Use devm_backlight_device_register() to make cleanup paths simpler.

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: aat2870: use bl_get_data instead of dev_get_drvdata

2013-02-22T01:22:24+00:00

Use the wrapper function for getting the driver data using
backlight_device instead of using dev_get_drvdata with &bd->dev, so we can
directly pass a struct backlight_device.

Signed-off-by: Jingoo Han 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

drivers/video/backlight: use devm_ functions

2012-03-23T23:58:33+00:00

The various devm_ functions allocate memory that is released when a driver
detaches.  This patch uses these functions for data that is allocated in
the probe function of a platform device and is only freed in the remove
function.

Signed-off-by: Julia Lawall 
Cc: Dimitris Papastamos 
Cc: Richard Purdie 
Cc: Florian Tobias Schandinat 
Cc: Mark Brown 
Cc: Michael Hennerich 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

drivers/video/backlight/aat2870_bl.c: fix setting max_current

2011-08-04T00:25:22+00:00

 - Current implementation tests wrong value for setting
   aat2870_bl->max_current.

 - In the current implementation, we cannot differentiate between 2 cases:

   a) if pdata->max_current is not set , or

   b) pdata->max_current is set to AAT2870_CURRENT_0_45 (which is also 0).

   Fix it by setting AAT2870_CURRENT_0_45 to be 1 and adjust the equation in
   aat2870_brightness() accordingly.

Signed-off-by: Axel Lin 
Cc: Richard Purdie 
Cc: Samuel Ortiz 
Tested-by: Jin Park 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

drivers/video/backlight/aat2870_bl.c: fix error checking for backlight_device_register

2011-08-04T00:25:22+00:00

backlight_device_register() returns ERR_PTR() on error.

Signed-off-by: Axel Lin 
Cc: Richard Purdie 
Cc: Jin Park 
Cc: Samuel Ortiz 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

backlight: Add AAT2870 backlight driver

2011-07-31T21:28:26+00:00

Add backlight driver for AnalogicTech AAT2870.

Signed-off-by: Jin Park 
Signed-off-by: Samuel Ortiz