linux-stable.git/drivers/video/backlight, branch linux-3.10.y Linux kernel stable tree backlight: atmel-pwm-bl: fix reported brightness 2013-12-04T18:55:47+00:00 Johan Hovold jhovold@gmail.com 2013-11-12T23:09:38+00:00 06909ca39fbac8b66421dbf8397d029879e81cfa commit 185d91442550110db67a7dc794a32efcea455a36 upstream. The driver supports 16-bit brightness values, but the value returned from get_brightness was truncated to eight bits. Signed-off-by: Johan Hovold <jhovold@gmail.com> Cc: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 185d91442550110db67a7dc794a32efcea455a36 upstream.

The driver supports 16-bit brightness values, but the value returned
from get_brightness was truncated to eight bits.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Cc: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
backlight: atmel-pwm-bl: fix gpio polarity in remove 2013-12-04T18:55:47+00:00 Johan Hovold jhovold@gmail.com 2013-11-12T23:09:39+00:00 fe619f64b93df39d3d6f4b60cd9fa3474e61ce5f commit ad5066d4c2b1d696749f8d7816357c23b648c4d3 upstream. Make sure to honour gpio polarity also at remove so that the backlight is actually disabled on boards with active-low enable pin. Signed-off-by: Johan Hovold <jhovold@gmail.com> Acked-by: Jingoo Han <jg1.han@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit ad5066d4c2b1d696749f8d7816357c23b648c4d3 upstream.

Make sure to honour gpio polarity also at remove so that the backlight is
actually disabled on boards with active-low enable pin.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
backlight: atmel-pwm-bl: fix deferred probe from __init 2013-11-20T20:27:47+00:00 Johan Hovold jhovold@gmail.com 2013-09-23T14:27:32+00:00 4790536896fd1e76949e58530dac2ba82354bd28 commit 9d3fde86b15303decea632c929fbf1f3ae4501f2 upstream. Move probe out of __init section and don't use platform_driver_probe which cannot be used with deferred probing. Since commit e9354576 ("gpiolib: Defer failed gpio requests by default") this driver might return -EPROBE_DEFER if a gpio_request fails. Cc: Richard Purdie <rpurdie@rpsys.net> Cc: Jingoo Han <jg1.han@samsung.com> Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com> Signed-off-by: Johan Hovold <jhovold@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit 9d3fde86b15303decea632c929fbf1f3ae4501f2 upstream.

Move probe out of __init section and don't use platform_driver_probe
which cannot be used with deferred probing.

Since commit e9354576 ("gpiolib: Defer failed gpio requests by default")
this driver might return -EPROBE_DEFER if a gpio_request fails.

Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Jingoo Han <jg1.han@samsung.com>
Cc: Jean-Christophe Plagniol-Villard <plagnioj@jcrosoft.com>
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Merge tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux 2013-05-09T16:59:16+00:00 Linus Torvalds torvalds@linux-foundation.org 2013-05-09T16:59:16+00:00 5647ac0ad4f355817b788372a01cb293ed63bde4 Pull removal of GENERIC_GPIO from Grant Likely: "GENERIC_GPIO now synonymous with GPIOLIB. There are no longer any valid cases for enableing GENERIC_GPIO without GPIOLIB, even though it is possible to do so which has been causing confusion and breakage. This branch does the work to completely eliminate GENERIC_GPIO." * tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux: gpio: update gpio Chinese documentation Remove GENERIC_GPIO config option Convert selectors of GENERIC_GPIO to GPIOLIB blackfin: force use of gpiolib m68k: coldfire: use gpiolib mips: pnx833x: remove requirement for GENERIC_GPIO openrisc: default GENERIC_GPIO to false avr32: default GENERIC_GPIO to false xtensa: remove explicit selection of GENERIC_GPIO sh: replace CONFIG_GENERIC_GPIO by CONFIG_GPIOLIB powerpc: remove redundant GENERIC_GPIO selection unicore32: default GENERIC_GPIO to false unicore32: remove unneeded select GENERIC_GPIO arm: plat-orion: use GPIO driver on CONFIG_GPIOLIB arm: remove redundant GENERIC_GPIO selection mips: alchemy: require gpiolib mips: txx9: change GENERIC_GPIO to GPIOLIB mips: loongson: use GPIO driver on CONFIG_GPIOLIB mips: remove redundant GENERIC_GPIO select 
Pull removal of GENERIC_GPIO from Grant Likely:
 "GENERIC_GPIO now synonymous with GPIOLIB.  There are no longer any
  valid cases for enableing GENERIC_GPIO without GPIOLIB, even though it
  is possible to do so which has been causing confusion and breakage.
  This branch does the work to completely eliminate GENERIC_GPIO."

* tag 'gpio-for-linus' of git://git.secretlab.ca/git/linux:
  gpio: update gpio Chinese documentation
  Remove GENERIC_GPIO config option
  Convert selectors of GENERIC_GPIO to GPIOLIB
  blackfin: force use of gpiolib
  m68k: coldfire: use gpiolib
  mips: pnx833x: remove requirement for GENERIC_GPIO
  openrisc: default GENERIC_GPIO to false
  avr32: default GENERIC_GPIO to false
  xtensa: remove explicit selection of GENERIC_GPIO
  sh: replace CONFIG_GENERIC_GPIO by CONFIG_GPIOLIB
  powerpc: remove redundant GENERIC_GPIO selection
  unicore32: default GENERIC_GPIO to false
  unicore32: remove unneeded select GENERIC_GPIO
  arm: plat-orion: use GPIO driver on CONFIG_GPIOLIB
  arm: remove redundant GENERIC_GPIO selection
  mips: alchemy: require gpiolib
  mips: txx9: change GENERIC_GPIO to GPIOLIB
  mips: loongson: use GPIO driver on CONFIG_GPIOLIB
  mips: remove redundant GENERIC_GPIO select
Merge tag 'for-3.10-rc1' of git://gitorious.org/linux-pwm/linux-pwm 2013-05-06T22:32:36+00:00 Linus Torvalds torvalds@linux-foundation.org 2013-05-06T22:32:36+00:00 f87bb9ee62700fa11713c630ac5671f253233b94 Pull pwm changes from Thierry Reding: "Nothing very exciting this time around. A couple of bug fixes and a lot of cleanup across the board. The DaVinci 8xx family of SoCs now use the same driver as the AM33xx family. Many thanks to Axel Lin and Jingoo Han who have done a great job fixing various bugs and inconsistencies." * tag 'for-3.10-rc1' of git://gitorious.org/linux-pwm/linux-pwm: (27 commits) pwm: lpc32xx: Don't change PWM_ENABLE bit in lpc32xx_pwm_config pwm: lpc32xx: Properly set PWM_ENABLE bit in lpc32xx_pwm_[enable|disable] pwm: Constify OF match tables pwm: pwm-tiehrpwm: Update device-tree binding document pwm: pwm-tiecap: Update device-tree binding document pwm: puv3: Remove unused enabled filed from struct puv3_pwm_chip pwm: pxa: Remove PWM_ID_BASE macro pwm: spear: Remove unused *dev from struct spear_pwm_chip pwm: mxs: Remove unused *dev from struct mxs_pwm_chip pwm: twl: Return proper error if twl6030_pwm_enable() fails pwm: pxa: Remove clk_enabled field from struct pxa_pwm_chip pwm: imx: Remove enabled field from struct imx_chip pwm: twl: Add .owner to struct pwm_ops pwm: twl-led: Add .owner to struct pwm_ops pwm: atmel-tcb: Add .owner to struct pwm_ops pwm: ab8500: Add .owner to struct pwm_ops pwm: spear: Fix checking return value of clk_enable() and clk_prepare() pwm: tiehrpwm: Staticize non-exported symbols pwm: tiecap: Staticize non-exported symbols pwm: ab8500: Fix trivial typo in dev_err message ... 
Pull pwm changes from Thierry Reding:
 "Nothing very exciting this time around.  A couple of bug fixes and a
  lot of cleanup across the board.  The DaVinci 8xx family of SoCs now
  use the same driver as the AM33xx family.

  Many thanks to Axel Lin and Jingoo Han who have done a great job
  fixing various bugs and inconsistencies."

* tag 'for-3.10-rc1' of git://gitorious.org/linux-pwm/linux-pwm: (27 commits)
  pwm: lpc32xx: Don't change PWM_ENABLE bit in lpc32xx_pwm_config
  pwm: lpc32xx: Properly set PWM_ENABLE bit in lpc32xx_pwm_[enable|disable]
  pwm: Constify OF match tables
  pwm: pwm-tiehrpwm: Update device-tree binding document
  pwm: pwm-tiecap: Update device-tree binding document
  pwm: puv3: Remove unused enabled filed from struct puv3_pwm_chip
  pwm: pxa: Remove PWM_ID_BASE macro
  pwm: spear: Remove unused *dev from struct spear_pwm_chip
  pwm: mxs: Remove unused *dev from struct mxs_pwm_chip
  pwm: twl: Return proper error if twl6030_pwm_enable() fails
  pwm: pxa: Remove clk_enabled field from struct pxa_pwm_chip
  pwm: imx: Remove enabled field from struct imx_chip
  pwm: twl: Add .owner to struct pwm_ops
  pwm: twl-led: Add .owner to struct pwm_ops
  pwm: atmel-tcb: Add .owner to struct pwm_ops
  pwm: ab8500: Add .owner to struct pwm_ops
  pwm: spear: Fix checking return value of clk_enable() and clk_prepare()
  pwm: tiehrpwm: Staticize non-exported symbols
  pwm: tiecap: Staticize non-exported symbols
  pwm: ab8500: Fix trivial typo in dev_err message
  ...
drivers/video/backlight/tps65217_bl.c add default brightness value option 2013-04-30T01:28:19+00:00 Matus Ujhelyi ujhelyi.m@gmail.com 2013-04-29T23:18:08+00:00 4d22f8c306233433bdf9298b2e7806e9c71674bc Signed-off-by: Matus Ujhelyi <matus.ujhelyi@streamunlimited.com> Cc: Grant Likely <grant.likely@secretlab.ca> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Signed-off-by: Matus Ujhelyi <matus.ujhelyi@streamunlimited.com>
Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
backlight: lp855x: add a device tree structure 2013-04-30T01:28:19+00:00 Kim, Milo Milo.Kim@ti.com 2013-04-29T23:18:06+00:00 4add06645a0be0519030705e3076e1a5ceba7477 Enable supporting the DT structure of LP855x family devices. If the platform data is NULL, the driver tries to parse a DT structure. Then, the platform data is copied from the DT. Documentation is added as well. Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Enable supporting the DT structure of LP855x family devices.  If the
platform data is NULL, the driver tries to parse a DT structure.  Then,
the platform data is copied from the DT.  Documentation is added as well.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
backlight: lp855x: remove duplicate platform data 2013-04-30T01:28:19+00:00 Kim, Milo Milo.Kim@ti.com 2013-04-29T23:18:05+00:00 c365e59d47b75c5f288f7e63d95dc0c9abcfe516 The 'load_new_rom_data' was used for checking whether new ROM data should be updated or not. However, we can decide it with 'size_program' data. If the size is greater than 0, it means updating ROM area is required. Otherwise, the default ROM data will be used. Therefore, this duplicate platform data can be removed. Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
The 'load_new_rom_data' was used for checking whether new ROM data should
be updated or not.

However, we can decide it with 'size_program' data.  If the size is
greater than 0, it means updating ROM area is required.  Otherwise, the
default ROM data will be used.  Therefore, this duplicate platform data
can be removed.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
backlight: lp855x: move backlight mode platform data 2013-04-30T01:28:18+00:00 Kim, Milo Milo.Kim@ti.com 2013-04-29T23:18:03+00:00 0b8185733966c1863b6b90ca2697327118ce5032 The brightness of LP855x devices is controlled by I2C register or PWM input . This mode was selected through the platform data, but it can be chosen by the driver internally without platform data configuration. How to decide the control mode: If the PWM period has specific value, the mode is PWM input. On the other hand, the mode is register-based. This mode selection is done on the _probe(). Move 'mode' from a header file to the driver private data structure, 'lp855 x'. And correlated code was replaced. Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
The brightness of LP855x devices is controlled by I2C register or PWM
input .  This mode was selected through the platform data, but it can be
chosen by the driver internally without platform data configuration.

How to decide the control mode:
  If the PWM period has specific value, the mode is PWM input.
  On the other hand, the mode is register-based.
  This mode selection is done on the _probe().

Move 'mode' from a header file to the driver private data structure,
'lp855 x'.  And correlated code was replaced.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
backlight: lp855x: convert a type of device name 2013-04-30T01:28:18+00:00 Kim, Milo Milo.Kim@ti.com 2013-04-29T23:18:02+00:00 600ffd33d09e3803d81607d3404a8cad709160e4 Configurable data, backlight device name is set to constant character type. Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Configurable data, backlight device name is set to constant character type.

Signed-off-by: Milo(Woogyom) Kim <milo.kim@ti.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>