Many backlights are enabled via GPIO. We can generalize the GPIO to a fixed regulator. The power 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. All I did in every case was to provide a dummy fixed regulator to pwm-backlight. If your platform actually uses a regulator (or a GPIO) to power the backlight, please either let me know so that I can make the modifications and give you something back to test. Or (better yet), provide me with a tested, alternate patch that I can fold into this patch series. I made sure that where there was a defconfig for an affected board, that it builds. I did not test-build the unicore patch. V5: Changed the name of the supply from "enable" to "power". Renamed corresponding regulator dt nodes and regulators in board setup files. Backlight regulator nodes renamed to something less generic. mach-mxs: Moved backlight power regulator into top-level regulators node. mach-vt8500: Made the backlight power regulator controlled via <&gpio 0 7 0>. mach-tegra: Moved the backlight power regulator to tegra20-tamonten.dtsi. V3 and earlier versions of this series only had the OMAP patch, which I used for ironing out some early, obvious stuff. V4 and later is the complete patch set. Andrew Chew (9): ARM: OMAP: board-4430sdp: Provide regulator to pwm-backlight ARM: S3C24XX: Provide regulator to pwm-backlight ARM: pxa: Provide regulator to pwm-backlight ARM: EXYNOS: Provide regulator to pwm-backlight unicore32: Provide regulator to pwm-backlight ARM: mxs: Provide regulator to pwm-backlight ARM: vt8500: Provide regulator to pwm-backlight ARM: tegra: Provide regulator to pwm-backlight pwm_bl: Add mandatory backlight enable regulator .../bindings/video/backlight/pwm-backlight.txt | 14 +++++ arch/arm/boot/dts/imx23-evk.dts | 6 +++ arch/arm/boot/dts/imx28-apf28dev.dts | 6 +++ arch/arm/boot/dts/imx28-cfa10049.dts | 6 +++ arch/arm/boot/dts/imx28-evk.dts | 6 +++ arch/arm/boot/dts/imx28-tx28.dts | 6 +++ arch/arm/boot/dts/tegra20-medcom-wide.dts | 6 +++ arch/arm/boot/dts/wm8850-w70v2.dts | 6 +++ arch/arm/mach-exynos/mach-nuri.c | 7 +++ arch/arm/mach-omap2/board-4430sdp.c | 6 +++ arch/arm/mach-pxa/cm-x300.c | 7 +++ arch/arm/mach-pxa/colibri-pxa270-income.c | 8 +++ arch/arm/mach-pxa/ezx.c | 9 ++++ arch/arm/mach-pxa/hx4700.c | 8 +++ arch/arm/mach-pxa/lpd270.c | 9 ++++ arch/arm/mach-pxa/magician.c | 8 +++ arch/arm/mach-pxa/mainstone.c | 13 ++++- arch/arm/mach-pxa/mioa701.c | 8 +++ arch/arm/mach-pxa/palm27x.c | 8 +++ arch/arm/mach-pxa/palmtc.c | 8 +++ arch/arm/mach-pxa/palmte2.c | 9 ++++ arch/arm/mach-pxa/pcm990-baseboard.c | 8 +++ arch/arm/mach-pxa/raumfeld.c | 6 +++ arch/arm/mach-pxa/tavorevb.c | 11 ++++ arch/arm/mach-pxa/viper.c | 8 +++ arch/arm/mach-pxa/z2.c | 10 ++++ arch/arm/mach-pxa/zylonite.c | 7 +++ arch/arm/mach-s3c24xx/mach-h1940.c | 8 +++ arch/arm/mach-s3c24xx/mach-rx1950.c | 9 ++++ arch/arm/plat-samsung/dev-backlight.c | 9 ++++ arch/unicore32/kernel/puv3-nb0916.c | 9 ++++ drivers/video/backlight/pwm_bl.c | 59 ++++++++++++++++++---- 32 files changed, 297 insertions(+), 11 deletions(-) -- 1.8.1.5 -- To unsubscribe from this list: send the line "unsubscribe linux-tegra" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
