Many backlights are enabled via GPIO. We can generalize the GPIO to a fixed regulator.
The enable regulator needs to be mandatory because there was no good way to determine the difference between opting out of the regulator, and probe deferral. This series of patches is intended to add a dummy regulator (or a GPIO regulator) for all users of the pwm-backlight. The last patch in the series will always be the pwm-backlight change to add this mandatory regulator. Patches following up to that patch add the mandatory regulator on a per mach family basis. Once all users of pwm-backlight have been patched, this series can be applied in order to maintain bisectability. Andrew Chew (2): ARM: OMAP: board-4430sdp: Provide regulator to pwm-backlight pwm_bl: Add mandatory backlight enable regulator .../bindings/video/backlight/pwm-backlight.txt | 14 +++++ arch/arm/mach-omap2/board-4430sdp.c | 5 ++ drivers/video/backlight/pwm_bl.c | 55 ++++++++++++++++---- 3 files changed, 64 insertions(+), 10 deletions(-) -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
