From: Thierry Reding <thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
To: Thierry Reding <thierry.reding-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
Cc: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>,
Eric Miao <eric.y.miao-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Haojian Zhuang
<haojian.zhuang-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Marek Vasut <marek.vasut-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
Ben Dooks <ben-linux-elnMNo+KYs3YtjvyW6yDsg@public.gmane.org>,
Kukjin Kim <kgene.kim-Sze3O3UU22JBDgjK7y7TUQ@public.gmane.org>,
Guan Xuetao <gxt-TG0Ac1+ktVePQbnJrJN+5g@public.gmane.org>,
devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-pwm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: [PATCH v2 00/12] pwm-backlight: Add GPIO and power supply support
Date: Mon, 7 Oct 2013 13:37:34 +0200 [thread overview]
Message-ID: <1381145866-445-1-git-send-email-treding@nvidia.com> (raw)
This series adds the ability to specify a GPIO and a power supply to
enable a backlight.
Patch 1 adds some blank lines to make the code look less cluttered in
various places.
Patch 2 refactors the power on and power off sequences into separate
functions in preparation for subsequent patches.
Patch 3 adds functionality to track the on/off state of the backlight.
This is required by subsequent patches to make sure that enabling and
disabling used resources remains balanced.
Patch 4 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 5 to 9 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 10 uses the new field within the pwm-backlight driver and at the
same time allows it to be parsed from device tree.
Patch 11 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 12 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 (12):
pwm-backlight: Improve readability
pwm-backlight: Refactor backlight power on/off
pwm-backlight: Track enable state
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: Add power supply support
pwm-backlight: Allow backlight to remain disabled on boot
.../bindings/video/backlight/pwm-backlight.txt | 8 ++
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 | 149 ++++++++++++++++-----
include/linux/pwm_backlight.h | 7 +
34 files changed, 171 insertions(+), 64 deletions(-)
--
1.8.4
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next reply other threads:[~2013-10-07 11:37 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-10-07 11:37 Thierry Reding [this message]
2013-10-07 11:37 ` [PATCH v2 02/12] pwm-backlight: Refactor backlight power on/off Thierry Reding
2013-10-07 11:37 ` [PATCH v2 03/12] pwm-backlight: Track enable state Thierry Reding
2013-10-07 11:37 ` [PATCH v2 04/12] pwm-backlight: Add optional enable GPIO Thierry Reding
[not found] ` <1381145866-445-1-git-send-email-treding-DDmLM1+adcrQT0dZR+AlfA@public.gmane.org>
2013-10-07 11:37 ` [PATCH v2 01/12] pwm-backlight: Improve readability Thierry Reding
2013-10-07 11:37 ` [PATCH v2 05/12] ARM: OMAP: Initialize PWM backlight enable_gpio field Thierry Reding
2013-10-07 11:37 ` [PATCH v2 06/12] ARM: pxa: " Thierry Reding
2013-10-07 11:37 ` [PATCH v2 07/12] ARM: SAMSUNG: " Thierry Reding
2013-11-07 12:44 ` [PATCH v2 00/12] pwm-backlight: Add GPIO and power supply support Christian Gmeiner
2013-10-07 11:37 ` [PATCH v2 08/12] ARM: shmobile: Initialize PWM backlight enable_gpio field Thierry Reding
2013-10-07 11:37 ` [PATCH v2 09/12] unicore32: " Thierry Reding
2013-10-07 11:37 ` [PATCH v2 10/12] pwm-backlight: Use new " Thierry Reding
2013-10-07 11:37 ` [PATCH v2 11/12] pwm-backlight: Add power supply support Thierry Reding
2013-10-07 11:37 ` [PATCH v2 12/12] pwm-backlight: Allow backlight to remain disabled on boot Thierry Reding
[not found] ` <CAH9NwWfDRiQ3FegMyx1YBQ5jUgPvc7h2cxd3KgyeDdnsq6UgMw@mail.gmail.com>
2013-11-08 12:36 ` [PATCH v2 00/12] pwm-backlight: Add GPIO and power supply support Thierry Reding
[not found] ` <20131108123619.GC31551-AwZRO8vwLAwmlAP/+Wk3EA@public.gmane.org>
2013-11-08 13:58 ` Christian Gmeiner
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