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linux-2.6
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linux-2.6/drivers
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Kim, Milo 8cc9764c9c drivers/video/backlight/lp855x_bl.c: use generic PWM functions 
The LP855x family devices support the PWM input for the backlight control.
 Period of the PWM is configurable in the platform side.  Platform
specific functions are unnecessary anymore because generic PWM functions
are used inside the driver.

(PWM input mode)
To set the brightness, new lp855x_pwm_ctrl() is used.
If a PWM device is not allocated, devm_pwm_get() is called.
The PWM consumer name is from the chip name such as 'lp8550' and 'lp8556'.
To get the brightness value, no additional handling is required.
Just the value of 'props.brightness' is returned.

If the PWM driver is not ready while initializing the LP855x driver, it's
OK.  The PWM device can be retrieved later, when the brightness value is
changed.

Documentation is updated with an example.

[akpm@linux-foundation.org: coding-style simplification, per Thierry]
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Cc: Thierry Reding <thierry.reding@avionic-design.de>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Bryan Wu <bryan.wu@canonical.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 		2012-12-17 17:15:16 -08:00
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accessibility
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acpi Merge branch 'x86-acpi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-12-14 10:03:23 -08:00
amba ARM: arm-soc: Cleanups on various subarchitectures 2012-12-12 11:51:39 -08:00
ata 1) More ACPI fixes 2012-12-15 12:37:18 -08:00
atm solos-pci: fix double-free of TX skb in DMA mode 2012-12-12 00:16:47 -05:00
auxdisplay
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base Merge branch 'x86-ras-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-12-14 09:59:59 -08:00
bcma Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2012-12-14 14:27:45 -08:00
block
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bluetooth Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2012-12-12 18:07:07 -08:00
bus ARM: OMAP: Fix drivers to depend on omap for internal devices 2012-12-16 15:23:37 -08:00
cdrom
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char Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2012-12-17 08:26:17 -08:00
clk ARM: arm-soc: Updates for Marvell mvebu/kirkwood 2012-12-14 14:54:26 -08:00
clocksource ARM: arm-soc: Updates for Marvell mvebu/kirkwood 2012-12-14 14:54:26 -08:00
connector
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cpufreq ACPI and power management updates for 3.8-rc1 2012-12-11 12:45:35 -08:00
cpuidle ARM: arm-soc: SoC updates for 3.8 2012-12-12 12:05:15 -08:00
crypto Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6 2012-12-15 12:35:19 -08:00
dca
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devfreq Merge branch 'pm-devfreq' 2012-12-07 23:13:36 +01:00
dio
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dma dmatest: check for dma mapping error 2012-12-17 17:15:13 -08:00
edac Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2012-12-14 14:27:45 -08:00
eisa
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extcon
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firewire Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-12-13 12:00:02 -08:00
firmware Merge branch 'core-efi-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2012-12-14 10:08:40 -08:00
gpio This is the MFD patch set for the 3.8 merge window. 2012-12-16 18:55:20 -08:00
gpu Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2012-12-17 08:26:17 -08:00
hid Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2012-12-13 19:22:22 -08:00
hsi
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hv
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hwmon ARM: arm-soc: driver specific changes 2012-12-13 10:59:11 -08:00
hwspinlock
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i2c This is the MFD patch set for the 3.8 merge window. 2012-12-16 18:55:20 -08:00
ide
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idle
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iio This is the MFD patch set for the 3.8 merge window. 2012-12-16 18:55:20 -08:00
infiniband Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2012-12-15 14:25:10 -08:00
input This is the MFD patch set for the 3.8 merge window. 2012-12-16 18:55:20 -08:00
iommu ARM: arm-soc: Header cleanups 2012-12-12 11:45:16 -08:00
ipack TTY/Serial merge for 3.8-rc1 2012-12-11 14:08:47 -08:00
irqchip ARM: arm-soc: Device-tree updates, take 2 2012-12-14 14:42:53 -08:00
isdn Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-12-13 12:00:02 -08:00
leds Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds 2012-12-15 12:52:42 -08:00
lguest
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macintosh bootmem: fix wrong call parameter for free_bootmem() 2012-12-11 17:22:28 -08:00
md Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-12-13 12:00:02 -08:00
media fbdev changes for 3.8: 2012-12-15 13:03:48 -08:00
memory
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memstick
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message
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mfd This is the MFD patch set for the 3.8 merge window. 2012-12-16 18:55:20 -08:00
misc Sound updates for 3.8-rc1 2012-12-13 11:51:23 -08:00
mmc This is the MFD patch set for the 3.8 merge window. 2012-12-16 18:55:20 -08:00
mtd Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-12-13 12:00:02 -08:00
net drivers: remove reference to feature-removal-schedule.txt 2012-12-17 17:15:12 -08:00
nfc
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nubus
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of Two minor devicetree fixups for v3.8. Addition of dummy inlines and 2012-12-14 15:37:46 -08:00
oprofile
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parisc
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parport
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pci Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2012-12-13 14:20:19 -08:00
pcmcia ARM: arm-soc: Header cleanups 2012-12-12 11:45:16 -08:00
pinctrl ARM: arm-soc: multiplatform conversion patches 2012-12-13 10:57:16 -08:00
platform Corentin has moved 2012-12-17 17:15:14 -08:00
pnp Driver core updates for 3.8-rc1 2012-12-11 13:13:55 -08:00
power This is the MFD patch set for the 3.8 merge window. 2012-12-16 18:55:20 -08:00
pps
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ps3
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ptp Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next 2012-12-12 18:07:07 -08:00
pwm
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rapidio Driver core updates for 3.8-rc1 2012-12-11 13:13:55 -08:00
regulator Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-12-13 12:00:02 -08:00
remoteproc Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-12-13 12:00:02 -08:00
rpmsg
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rtc This is the MFD patch set for the 3.8 merge window. 2012-12-16 18:55:20 -08:00
s390 Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux 2012-12-13 14:20:19 -08:00
sbus
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scsi Merge branch 'for-3.8/core' of git://git.kernel.dk/linux-block 2012-12-17 08:27:23 -08:00
sfi
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sh
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sn
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spi SPI changes for v3.8 2012-12-13 19:15:11 -08:00
ssb Merge branch 'upstream' of git://git.linux-mips.org/pub/scm/ralf/upstream-linus 2012-12-14 14:27:45 -08:00
staging fbdev changes for 3.8: 2012-12-15 13:03:48 -08:00
target Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2012-12-15 14:25:10 -08:00
tc
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thermal Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-12-13 12:00:02 -08:00
tty Merge tag 'kvm-3.8-1' of git://git.kernel.org/pub/scm/virt/kvm/kvm 2012-12-13 15:31:08 -08:00
uio ARM: arm-soc: SoC updates for 3.8 2012-12-12 12:05:15 -08:00
usb usb: musb: use io{read,write}*_rep accessors 2012-12-17 17:15:13 -08:00
uwb
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vfio
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vhost Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending 2012-12-15 14:25:10 -08:00
video drivers/video/backlight/lp855x_bl.c: use generic PWM functions 2012-12-17 17:15:16 -08:00
virt
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virtio virtio_balloon: introduce migration primitives to balloon pages 2012-12-11 17:22:27 -08:00
vlynq
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vme
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w1 ARM: OMAP: Fix drivers to depend on omap for internal devices 2012-12-16 15:23:37 -08:00
watchdog Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/trivial 2012-12-13 12:00:02 -08:00
xen Feature: 2012-12-16 17:39:14 -08:00
zorro
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Kconfig
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Makefile
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