| From: |
| Thierry Reding <thierry.reding@gmail.com> |
| To: |
| Thierry Reding <thierry.reding@gmail.com> |
| Subject: |
| [PATCH 00/10] pwm-backlight: Add GPIO and power supply support |
| Date: |
| Mon, 23 Sep 2013 23:40:57 +0200 |
| Message-ID: |
| <1379972467-11243-1-git-send-email-treding@nvidia.com> |
| Cc: |
| Rob Herring <rob.herring@calxeda.com>, Pawel Moll <pawel.moll@arm.com>, Mark Rutland <mark.rutland@arm.com>, Stephen Warren <swarren@wwwdotorg.org>, Ian Campbell <ijc+devicetree@hellion.org.uk>, Tony Lindgren <tony@atomide.com>, Eric Miao <eric.y.miao@gmail.com>, Haojian Zhuang <haojian.zhuang@gmail.com>, Ben Dooks <ben-linux@fluff.org>, Kukjin Kim <kgene.kim@samsung.com>, Simon Horman <horms@verge.net.au>, Magnus Damm <magnus.damm@gmail.com>, Guan Xuetao <gxt@mprc.pku.edu.cn>, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-omap@vger.kernel.org, openezx-devel@lists.openezx.org, linux-samsung-soc@vger.kernel.org, linux-sh@vger.kernel.org, linux-pwm@vger.kernel.org, linux-kernel@vger.kernel.org |
| Archive‑link: | |
Article |
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
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