* 'for-linus' of git://git.o-hand.com/linux-rpurdie-backlight:
  backlight: Adds HP Jornada 700 series backlight driver
  backlight: Add HP Jornada 700 series LCD driver
  backlight: fix pwm_bl.c when multiple PWM backlights exist
  backlight: mbp_nvidia_bl - Add a debug switch
  backlight: Add support for MacBook 5, MacBook Air 2, and MacBook Pro 5

* 'for-linus' of git://git.o-hand.com/linux-rpurdie-leds:
  leds: introduce lp5521 led driver
  leds: just ignore invalid GPIOs in leds-gpio
  leds: Fix &&/|| confusion in leds-pca9532.c
  leds: move h1940-leds's probe function to .devinit.text
  leds: remove an unnecessary "goto" on drivers/leds/leds-s3c24.c
  leds: add BD2802GU LED driver
  leds: remove experimental flag from leds-clevo-mail
  leds: Prevent multiple LED triggers with the same name
  leds: Add gpio-led trigger
  leds: Add rb532 LED driver for the User LED
  leds: Add suspend/resume state flags to leds-gpio
  leds: simple driver for pwm driven LEDs
  leds: Fix leds-gpio driver multiple module_init/exit usage
  leds: Add dac124s085 driver
  leds: allow led-drivers to use a variable range of brightness values
  leds: Add openfirmware platform device support

Signed-off-by: NKristoffer Ericson <kristoffer.ericson@gmail.com>
Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>

Signed-off-by: NKristoffer Ericson <kristoffer.ericson@gmail.com>
Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>

When multiple PWMs are used as backlights, the current code uses
pdev->name as the backlight name when registering, which will be
conflicting, use dev_name() instead.
Signed-off-by: NPeter Edwards <sweetlilmre@gmail.com>
Signed-off-by: NEric Miao <eric.miao@marvell.com>
Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>

This patch adds a debug switch to enable (little) diagnostic
output, to help to trace down the remaining problems.
Signed-off-by: NMario Schwalbe <schwalbe@inf.tu-dresden.de>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>

This patch adds support for the new Apple models incorporating an Nvidia
chipset.  Apple still uses the same protocol as on older models, but the
registers moved to a different address. To do this, two sets of functions
are added for the Intel/Nvidia chipset models and passed by the DMI_MATCH
function.

The initial code has been contributed by Hu Gang <hugang@soulinfo.com>.

The driver is known to work on MacBook Pro 3, MacBook Pro 4 and MacBook
Pro 5.

Its known to work with limitations on MacBook 5 / MacBook Air 2. Changing
brightness within X doesn't work, if using Nvidia's proprietary graphics
driver with no known fix at present. Changing brightness on a text console
or using the open-source driver does work.

MacBook Pro 5 has a known bug where the initial brightness after bootup is
the last recently used brightness (in Mac OSX), while the firmware reports
maximum. Impossible to fix.

[akpm@linux-foundation.org: build fix]
[rpurdie@linux.intel.com: Rebased the patch against latest git]
Signed-off-by: NMario Schwalbe <schwalbe@inf.tu-dresden.de>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>

LP5521 is a three channel led driver with support
for hardware accelerated patterns (currently used
via lp5521-only sysfs interface).

Currently, it's used on n810 device.
Signed-off-by: NFelipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>

Sometimes it's awkward to make sure that the array in the
platform_data handed to the leds-gpio driver has only valid
data ... some leds may not be always available, and coping
with that currently requires patching or rebuilding the array.

This patch fixes that by making it be OK to pass an invalid
GPIO (such as "-EINVAL") ... such table entries are skipped.

[rpurdie@linux.intel.com: adjusted to apply against other led tree changes]
Signed-off-by: NDavid Brownell <dbrownell@users.sourceforge.net>
Tested-by: NDiego Dompe <diego.dompe@ridgerun.com>
Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>

This fixes the expression in the driver to do the correct thing,
not that I think anyone would send SND_* without EV_SND.

Thanks to Roel Kluin <roel.kluin@gmail.com> for noticing.
Signed-off-by: NRiku Voipio <riku.voipio@iki.fi>
Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>

A pointer to h1940leds_probe is passed to the core via
platform_driver_register and so the function must not disappear when the
.init sections are discarded.  Otherwise (if also having HOTPLUG=y)
unbinding and binding a device to the driver via sysfs will result in an
oops as does a device being registered late.

An alternative to this patch is using platform_driver_probe instead of
platform_driver_register plus removing the pointer to the probe function
from the struct platform_driver.
Signed-off-by: NUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>

This goto is unnecessary.
Signed-off-by: NZhenwen Xu <helight.xu@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>

ROHM BD2802GU is a RGB LED controller attached to i2c bus and specifically
engineered for decoration purposes.  This RGB controller incorporates
lighting patterns and illuminates.

This driver is designed to minimize power consumption, so when there is no
emitting LED, it enters to reset state.  And because the BD2802GU has lots
of features that can't be covered by the current LED framework, it
provides Advanced Configuration Function(ADF) mode, so that user
applications can set registers of BD2802GU directly.

Here are basic usage examples :
; to turn on LED (not blink)
$ echo 1 > /sys/class/leds/led1_R/brightness
; to blink LED
$ echo timer > /sys/class/leds/led1_R/trigger
$ echo 1 > /sys/class/leds/led1_R/delay_on
$ echo 1 > /sys/class/leds/led1_R/delay_off
; to turn off LED
$ echo 0 > /sys/class/leds/led1_R/brightness

[akpm@linux-foundation.org: coding-style fixes]
Signed-off-by: NKim Kyuwon <chammoru@gmail.com>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>

The leds-clevo-mail driver is in the mainline kernel since 2.6.25 and works
without severe problems. Make this driver available for a larger audience.
Signed-off-by: NMárton Németh <nm127@freemail.hu>
Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>

Signed-off-by: NAdam Nielsen <a.nielsen@shikadi.net>
Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>

The gpio led trigger will allow leds to be triggered by
gpio events.

When we give the led a gpio number, the trigger will
request_irq() on that so we don't have to keep polling
for gpio state.

It's useful for usecases as n810's keypad leds that could
be triggered by the gpio event generated when user slides
up to show the keypad.

We also provide means for userland to tell us what is the
desired brightness for that special led when it goes on
so userland could use information from ambient light sensors
and not set led brightness too high if it's not necessary.
Signed-off-by: NFelipe Balbi <me@felipebalbi.com>
Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>

Mikrotik built six LEDs into the Routerboard 532, from which one is
destined for custom use, the so called "User LED". This patch adds a
driver for it, based on the LEDs class.
Signed-off-by: NPhil Sutter <n0-1@freewrt.org>
Acked-by: NFlorian Fainelli <florian@openwrt.org>
Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>

Add an option to preserve LED state when suspending/resuming to the LED
gpio driver. Based on a suggestion from Robert Jarzmik.
Tested-by: NRobert Jarzmik <robert.jarzmik@free.fr>
Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>

Add a simple driver for pwm driver LEDs.  pwm_id and period can be defined
in board file.  It is developed for pxa, however it is probably generic
enough to be used on other platforms with pwm.
Signed-off-by: NLuotao Fu <l.fu@pengutronix.de>
Signed-off-by: NAndrew Morton <akpm@linux-foundation.org>
Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>

You can't have multiple module_init()/module_exit calls so resort to messy
ifdefs potentially pending some code refactoring.
Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>

Add an LED driver using the DAC124S085 DAC from NatSemi

[randy.dunlap@oracle.com: use header files for interfaces]
Signed-off-by: NGuennadi Liakhovetski <lg@denx.de>
Signed-off-by: NRandy Dunlap <randy.dunlap@oracle.com>
Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>

This patch allows drivers to override the default maximum brightness value
of 255.  We take care to preserve backwards-compatibility as much as
possible, so that user-space ABI doesn't change for existing drivers.
LED trigger code has also been updated to use the per-LED maximum.
Signed-off-by: NGuennadi Liakhovetski <lg@denx.de>
Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>

Add bindings to support LEDs defined as of_platform devices in addition to
the existing bindings for platform devices.

New options in Kconfig allow the platform binding code and/or the
of_platform code to be turned on.  The of_platform code is of course only
available on archs that have OF support.

The existing probe and remove methods are refactored to use new functions
create_gpio_led(), to create and register one led, and delete_gpio_led(),
to unregister and free one led.  The new probe and remove methods for the
of_platform driver can then share most of the common probe and remove code
with the platform driver.

The suspend and resume methods aren't shared, but they are very short.  The
actual led driving code is the same for LEDs created by either binding.

The OF bindings are based on patch by Anton Vorontsov
<avorontsov@ru.mvista.com>.  They have been extended to allow multiple LEDs
per device.
Signed-off-by: NTrent Piepho <tpiepho@freescale.com>
Acked-by: NGrant Likely <grant.likely@secretlab.ca>
Acked-by: NSean MacLennan <smaclennan@pikatech.com>
Signed-off-by: NRichard Purdie <rpurdie@linux.intel.com>

We should now have the logic in place to handle this properly
without regressing on the write performance, so re-enable
the sync writes.
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

By default, CFQ will anticipate more IO from a given io context if the
previously completed IO was sync. This used to be fine, since the only
sync IO was reads and O_DIRECT writes. But with more "normal" sync writes
being used now, we don't want to anticipate for those.

Add a bio/request flag that informs the IO scheduler that this is a sync
request that we should not idle for. Introduce WRITE_ODIRECT specifically
for O_DIRECT writes, and make sure that the other sync writes set this
flag.
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

For the older SSD devices that don't do command queuing, we do want to
enable plugging to get better merging.
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

When you are going to be submitting several sync writes, we want to
give the IO scheduler a chance to merge some of them. Instead of
using the implicitly unplugging WRITE_SYNC variant, use WRITE_SYNC_PLUG
and rely on sync_buffer() doing the unplug when someone does a
wait_on_buffer()/lock_buffer().
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

When you are going to be submitting several sync writes, we want to
give the IO scheduler a chance to merge some of them. Instead of
using the implicitly unplugging WRITE_SYNC variant, use WRITE_SYNC_PLUG
and rely on sync_buffer() doing the unplug when someone does a
wait_on_buffer()/lock_buffer().
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

Then it can submit all the buffers without unplugging for each one.
We will kick off the pending IO if we come across a new address space.
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

(S)WRITE_SYNC always unplugs the device right after IO submission.
Sometimes we want to build up a queue before doing so, so add
variants that explicitly DON'T unplug the queue. The caller must
then do that after submitting all the IO.
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

This makes sure that we never wait on async IO for sync requests, instead
of doing the split on writes vs reads.
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>

* 'audit.b62' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/audit-current:
  Audit: remove spaces from audit_log_d_path
  audit: audit_set_auditable defined but not used
  audit: incorrect ref counting in audit tree tag_chunk
  audit: Fix possible return value truncation in audit_get_context()
  audit: ignore terminating NUL in AUDIT_USER_TTY messages
  Audit: fix handling of 'strings' with NULL characters
  make the e->rule.xxx shorter in kernel auditfilter.c
  auditsc: fix kernel-doc notation
  audit: EXECVE record - removed bogus newline

* 'for-next' of git://git.o-hand.com/linux-mfd:
  mfd: fix da903x warning
  mfd: fix MAINTAINERS entry
  mfd: Use the value of the final spin when reading the AUXADC
  mfd: Storage class should be before const qualifier
  mfd: PASIC3: supply clock_rate to DS1WM via driver_data
  mfd: remove DS1WM clock handling
  mfd: remove unused PASIC3 bus_shift field
  pxa/magician: remove deprecated .bus_shift from PASIC3 platform_data
  mfd: convert PASIC3 to use MFD core
  mfd: convert DS1WM to use MFD core
  mfd: Support active high IRQs on WM835x
  mfd: Use bulk read to fill WM8350 register cache
  mfd: remove duplicated #include from pcf50633

* 'for-linus' of git://repo.or.cz/cris-mirror:
  CRISv32: Remove extraneous space between -I and the path.
  cris: convert obsolete hw_interrupt_type to struct irq_chip
  BUG to BUG_ON changes
  cpumask: use mm_cpumask() wrapper: cris
  cpumask: Use accessors code.: cris
  cpumask: prepare for iterators to only go to nr_cpu_ids/nr_cpumask_bits.: cris

* 'release' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux-acpi-2.6: (140 commits)
  ACPI: processor: use .notify method instead of installing handler directly
  ACPI: button: use .notify method instead of installing handler directly
  ACPI: support acpi_device_ops .notify methods
  toshiba-acpi: remove MAINTAINERS entry
  ACPI: battery: asynchronous init
  acer-wmi: Update copyright notice & documentation
  acer-wmi: Cleanup the failure cleanup handling
  acer-wmi: Blacklist Acer Aspire One
  video: build fix
  thinkpad-acpi: rework brightness support
  thinkpad-acpi: enhanced debugging messages for the fan subdriver
  thinkpad-acpi: enhanced debugging messages for the hotkey subdriver
  thinkpad-acpi: enhanced debugging messages for rfkill subdrivers
  thinkpad-acpi: restrict access to some firmware LEDs
  thinkpad-acpi: remove HKEY disable functionality
  thinkpad-acpi: add new debug helpers and warn of deprecated atts
  thinkpad-acpi: add missing log levels
  thinkpad-acpi: cleanup debug helpers
  thinkpad-acpi: documentation cleanup
  thinkpad-acpi: drop ibm-acpi alias
  ...

* git://git.kernel.org/pub/scm/linux/kernel/git/lethal/sh-2.6: (23 commits)
  sh: sh7785lcr: Map whole PCI address space.
  sh: Fix up DSP context save/restore.
  sh: Fix up number of on-chip DMA channels on SH7091.
  sh: update defconfigs.
  sh: Kill off broken direct-mapped cache mode.
  sh: Wire up ARCH_HAS_DEFAULT_IDLE for cpuidle.
  sh: Add a command line option for disabling I/O trapping.
  sh: Select ARCH_HIBERNATION_POSSIBLE.
  sh: migor: Fix up CEU use flags.
  input: migor_ts: add wakeup support
  rtc: rtc-sh: use set_irq_wake()
  input: sh_keysc: use enable/disable_irq_wake()
  sh: intc: set_irq_wake() support
  sh: intc: install enable, disable and shutdown callbacks
  clocksource: sh_cmt: use remove_irq() and remove clockevent workaround
  sh: ap325 and Migo-R use new sh_mobile_ceu_info flags
  sh: Fix up -Wformat-security whining.
  sh: ap325rxa: Add ov772x support, again.
  sh: Sanitize asm/mmu.h for assembly use.
  sh: Tidy up sh7786 pinmux table.
  ...

* 'avr32-arch' of git://git.kernel.org/pub/scm/linux/kernel/git/hskinnemoen/avr32-2.6:
  avr32: add hardware handshake support to atmel_serial
  avr32: add RTS/CTS/CLK pin selection for the USARTs
  Add RTC support for Merisc boards
  avr32: at32ap700x: setup DMA for AC97C in the machine code
  avr32: at32ap700x: setup DMA for ABDAC in the machine code
  Add Merisc board support
  avr32: use gpio_is_valid() to check USBA vbus_pin I/O line
  atmel-usba-udc: use gpio_is_valid() to check vbus_pin I/O line
  avr32: fix timing LCD parameters for EVKLCD10X boards
  avr32: use GPIO line PB15 on EVKLCD10x boards for backlight
  avr32: configure MCI detect and write protect pins for EVKLCD10x boards
  avr32: set pin mask to alternative 18 bpp for EVKLCD10x boards
  avr32: add pin mask for 18-bit color on the LCD controller
  avr32: fix 15-bit LCDC pin mask to use MSB lines

* git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging-2.6: (714 commits)
  Staging: sxg: slicoss: Specify the license for Sahara SXG and Slicoss drivers
  Staging: serqt_usb: fix build due to proc tty changes
  Staging: serqt_usb: fix checkpatch errors
  Staging: serqt_usb: add TODO file
  Staging: serqt_usb: Lindent the code
  Staging: add USB serial Quatech driver
  staging: document that the wifi staging drivers a bit better
  Staging: echo cleanup
  Staging: BUG to BUG_ON changes
  Staging: remove some pointless conditionals before kfree_skb()
  Staging: line6: fix build error, select SND_RAWMIDI
  Staging: line6: fix checkpatch errors in variax.c
  Staging: line6: fix checkpatch errors in toneport.c
  Staging: line6: fix checkpatch errors in pcm.c
  Staging: line6: fix checkpatch errors in midibuf.c
  Staging: line6: fix checkpatch errors in midi.c
  Staging: line6: fix checkpatch errors in dumprequest.c
  Staging: line6: fix checkpatch errors in driver.c
  Staging: line6: fix checkpatch errors in audio.c
  Staging: line6: fix checkpatch errors in pod.c
  ...

* 'tracing-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: (413 commits)
  tracing, net: fix net tree and tracing tree merge interaction
  tracing, powerpc: fix powerpc tree and tracing tree interaction
  ring-buffer: do not remove reader page from list on ring buffer free
  function-graph: allow unregistering twice
  trace: make argument 'mem' of trace_seq_putmem() const
  tracing: add missing 'extern' keywords to trace_output.h
  tracing: provide trace_seq_reserve()
  blktrace: print out BLK_TN_MESSAGE properly
  blktrace: extract duplidate code
  blktrace: fix memory leak when freeing struct blk_io_trace
  blktrace: fix blk_probes_ref chaos
  blktrace: make classic output more classic
  blktrace: fix off-by-one bug
  blktrace: fix the original blktrace
  blktrace: fix a race when creating blk_tree_root in debugfs
  blktrace: fix timestamp in binary output
  tracing, Text Edit Lock: cleanup
  tracing: filter fix for TRACE_EVENT_FORMAT events
  ftrace: Using FTRACE_WARN_ON() to check "freed record" in ftrace_release()
  x86: kretprobe-booster interrupt emulation code fix
  ...

Fix up trivial conflicts in
 arch/parisc/include/asm/ftrace.h
 include/linux/memory.h
 kernel/extable.c
 kernel/module.c

audit_log_d_path had spaces in the strings which would be emitted on the
error paths.  This patch simply replaces those spaces with an _ or removes
the needless spaces entirely.
Signed-off-by: NEric Paris <eparis@redhat.com>
Signed-off-by: NAl Viro <viro@zeniv.linux.org.uk>