This series adds the ability to specify a GPIO and a power supply to enable a backlight. Patch 1 refactors the power on and power off sequences into separate functions in preparation for subsequent patches. Patch 2 adds an optional GPIO to enable a backlight. This patch only includes the field within the platform data so that it can be properly setup before actually being put to use. Patches 3 to 7 convert all users of the pwm-backlight driver to use the new field. For most of them, this just initializes the field to -1, marking the field as unused. Patch 8 uses the new field within the pwm-backlight driver and at the same time allows it to be parsed from device tree. Patch 9 implements support for an optional power supply. This relies on the regulator core to return a dummy regulator when no supply has been otherwise setup so the driver doesn't have to handle that specially nor require all users to be updated. Patch 10 adds a way to keep a backlight turned off at boot. This is useful when hooking up a backlight with a subsystem such as DRM which has more explicit semantics as to when a backlight should be turned on. Due to the dependencies within the series, I propose to take all these patches through the PWM tree, so I'll need acks from OMAP, PXA, Samsung, shmobile and Unicore32 maintainers. Thierry Thierry Reding (10): pwm-backlight: Refactor backlight power on/off pwm-backlight: Add optional enable GPIO ARM: OMAP: Initialize PWM backlight enable_gpio field ARM: pxa: Initialize PWM backlight enable_gpio field ARM: SAMSUNG: Initialize PWM backlight enable_gpio field ARM: shmobile: Initialize PWM backlight enable_gpio field unicore32: Initialize PWM backlight enable_gpio field pwm-backlight: Use new enable_gpio field pwm-backlight: Use an optional power supply pwm-backlight: Allow backlight to remain disabled on boot .../bindings/video/backlight/pwm-backlight.txt | 6 + arch/arm/mach-omap2/board-zoom-peripherals.c | 1 + arch/arm/mach-pxa/cm-x300.c | 1 + arch/arm/mach-pxa/colibri-pxa270-income.c | 1 + arch/arm/mach-pxa/ezx.c | 1 + arch/arm/mach-pxa/hx4700.c | 1 + arch/arm/mach-pxa/lpd270.c | 1 + arch/arm/mach-pxa/magician.c | 1 + arch/arm/mach-pxa/mainstone.c | 1 + arch/arm/mach-pxa/mioa701.c | 1 + arch/arm/mach-pxa/palm27x.c | 1 + arch/arm/mach-pxa/palmtc.c | 35 +---- arch/arm/mach-pxa/palmte2.c | 1 + arch/arm/mach-pxa/pcm990-baseboard.c | 1 + arch/arm/mach-pxa/raumfeld.c | 1 + arch/arm/mach-pxa/tavorevb.c | 2 + arch/arm/mach-pxa/viper.c | 1 + arch/arm/mach-pxa/z2.c | 2 + arch/arm/mach-pxa/zylonite.c | 1 + arch/arm/mach-s3c24xx/mach-h1940.c | 1 + arch/arm/mach-s3c24xx/mach-rx1950.c | 1 + arch/arm/mach-s3c64xx/mach-crag6410.c | 1 + arch/arm/mach-s3c64xx/mach-hmt.c | 1 + arch/arm/mach-s3c64xx/mach-smartq.c | 1 + arch/arm/mach-s3c64xx/mach-smdk6410.c | 1 + arch/arm/mach-s5p64x0/mach-smdk6440.c | 1 + arch/arm/mach-s5p64x0/mach-smdk6450.c | 1 + arch/arm/mach-s5pc100/mach-smdkc100.c | 1 + arch/arm/mach-s5pv210/mach-smdkv210.c | 1 + arch/arm/mach-shmobile/board-armadillo800eva.c | 1 + arch/arm/plat-samsung/dev-backlight.c | 5 + arch/unicore32/kernel/puv3-nb0916.c | 1 + drivers/video/backlight/pwm_bl.c | 142 ++++++++++++++++----- include/linux/pwm_backlight.h | 7 + 34 files changed, 162 insertions(+), 64 deletions(-) -- 1.8.4 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
