3 commits

Author	SHA1	Message	Date
Matthew Garrett	a19a6ee6ca	backlight: Allow properties to be passed at registration ... 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 <mjg@redhat.com> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>	2010-03-16 19:47:54 +00:00
Emese Revfy	9905a43b2d	backlight: Constify struct backlight_ops ... Signed-off-by: Emese Revfy <re.emese@gmail.com> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>	2009-12-16 11:33:46 +00:00
Mark Brown	a4f3d55cb0	backlight: Add WM831x backlight driver ... The WM831x series of PMICs provide DC-DC boost convertors and current sinks which can be used together to drive LEDs for use as backlights. Expose this functionality via the backlight API. Since when used in this configuration the current sink and boost convertor are very tightly coupled with a multi-stage startup for the current sink which overlaps with the boost convertor startup this driver bypasses the regulator API. Machine inititialisation is responsible for ensuring that the regulators are not accessed via both APIs. Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>	2009-09-07 14:05:07 +01:00