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Kim, Milo 7be865ab86 backlight: new backlight driver for LP855x devices 
THis driver supports TI LP8550/LP8551/LP8552/LP8553/LP8556 backlight
devices.

The brightness can be controlled by the I2C or PWM input.  The lp855x
driver provides both modes.  For the PWM control, pwm-specific functions
can be defined in the platform data.  And some information can be read
via the sysfs(lp855x device attributes).

For details, please refer to Documentation/backlight/lp855x-driver.txt.

[axel.lin@gmail.com: add missing mutex_unlock in lp855x_read_byte() error path]
[axel.lin@gmail.com: check platform data in lp855x_probe()]
[axel.lin@gmail.com: small cleanups]
[dan.carpenter@oracle.com: silence a compiler warning]
[axel.lin@gmail.com: use id->driver_data to differentiate lp855x chips]
[akpm@linux-foundation.org: simplify boolean return expression]
Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2012-03-23 16:58:33 -07:00
..
acpi Merge 3.3-rc2 into the driver-core-next branch. 2012-02-02 11:24:44 -08:00
asm-generic consolidate WARN_...ONCE() static variables 2012-03-23 16:58:31 -07:00
crypto crypto: remove the second argument of k[un]map_atomic() 2012-03-20 21:48:16 +08:00
drm headers: include linux/types.h where appropriate 2012-03-23 16:58:31 -07:00
keys keys: add a "logon" key type 2012-01-17 22:39:40 -06:00
linux backlight: new backlight driver for LP855x devices 2012-03-23 16:58:33 -07:00
math-emu
media Merge branch 'v4l_for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media 2012-01-18 12:53:54 -08:00
misc
mtd
net Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs 2012-03-21 13:36:41 -07:00
pcmcia
rdma Merge branches 'cma', 'cxgb3', 'cxgb4', 'ehca', 'iser', 'mad', 'nes', 'qib', 'srp' and 'srpt' into for-next 2012-03-19 09:50:33 -07:00
rxrpc
scsi headers: include linux/types.h where appropriate 2012-03-23 16:58:31 -07:00
sound headers: include linux/types.h where appropriate 2012-03-23 16:58:31 -07:00
target target: Use array_zalloc for device_list 2012-03-15 19:15:51 -07:00
trace NFS client updates for Linux 3.4 2012-03-23 08:53:47 -07:00
video fbdev: sh_mipi_dsi: add extra phyctrl for sh_mipi_dsi_info 2012-03-21 07:24:01 +00:00
xen Features: 2012-03-22 20:16:14 -07:00
Kbuild