[PATCH/RFC v13 00/13] LED / flash API integration

[Jacek Anaszewski <j.anaszewski@samsung.com>]

This patch set is a follow-up of the LED / flash API integration
series [1]. It is based on linux-next_20150312, with patches
for mfd max77693 from the previous version of the patch set.
Those patches have been recently applied to mfd tree and are
awaiting merging with linux-next.

========================
Changes since version 12 :
========================

- fixed the name of the LEDs common dt-bindings header
- fixed the size of the LED Flash class sysfs_groups array
- changed the way of composing v4l2-flash device name
- applied various improvements and cleanups

========================
Changes since version 11 :
========================

- removed synchronized strobe feature from LED Flash class, as it
  turned out to be not fitting for sysfs interface. The V4L2 part
  can cover this in the future.
- Improved external strobe handling for AAT1290
- added removing led-triggers on v4l2-flash sub-device open
- applied minor improvements and cleanups

========================
Changes since version 10 :
========================

- added to the v4l2-flash sub-device driver the support for flash
  LED devices with non-linear brightness setting
- improved current setting in the max77693-led driver 
- added ABI documentation for flash LED sysfs attributes
- improved synchronized LEDs related sysfs attributes in the
  LED Flash class
- applied various fixes and cleanups

========================
Changes since version 9 :
========================

- switched to assigning sub-led related of_node to led_cdev->dev->of_node
  member which allowed for avoiding modifications around v4l-async
- reimplemented max77693 flash cell driver to avoid extensive use
  of macros
- added led-sources DT property and switched to using it
- switched to reporting flash faults in the LED subsystem in the form
  of human readable strings
- added available_sync_leds sysfs attribute to the LED Flash class
  and changed the semantics of flash_sync_strobe attribute
- made LED subsystem flash faults not depending on the V4L2 Flash ones
- applied various fixes and cleanups

========================
Changes since version 8:
========================

- added a new way of registering async sub-device
- switched to matching flash leds by DT phandles
- improved Device Tree bindings documentation
- split the drivers patches to LED Flash class
  and V4L2 Flash part
- fixed indicator leds handling in v4l2-flash
- applied various fixes an cleanups

========================
Changes since version 7:
========================

- removed explicit support for indicator leds from
  LED Flash class - indicator leds will be registered
  as a separate LED Flash class devices
- added flash_sync_strobe sysfs attribute and related
  V4L2_CID_FLASH_SYNC_STROBE control
- changed the way of matching V4L2 Flash sub-devices
  in a media device, which entailed modification in
  v4l2-async driver
- modified max77693 DT bindings documentation
- applied various fixes an cleanups

========================
Changes since version 6:
========================

- removed addition of public LED subsystem API for setting
  torch brightness in favour of internal API for
  synchronous and asynchronous led brightness level setting
- fixed possible race condition upon creating LED Flash class
  related sysfs attributes

========================
Changes since version 5:
========================

- removed flash manager framework - its implementation needs
  further thorough discussion.
- removed external strobe facilities from the LED Flash Class
  and provided external_strobe_set op in v4l2-flash. LED subsystem
  should be strobe provider agnostic.

Thanks,
Jacek Anaszewski

[1] https://lkml.org/lkml/2014/7/11/914

Jacek Anaszewski (13):
  leds: flash: Fix the size of sysfs_groups array
  dt-binding: leds: Add common LED DT bindings macros
  leds: Add support for max77693 mfd flash cell
  DT: Add documentation for the mfd Maxim max77693
  leds: Add driver for AAT1290 current regulator
  of: Add Skyworks Solutions, Inc. vendor prefix
  DT: Add documentation for the Skyworks AAT1290
  exynos4-is: Add support for v4l2-flash subdevs
  media: Add registration helpers for V4L2 flash sub-devices
  Documentation: leds: Add description of v4l2-flash sub-device
  DT: Add documentation for exynos4-is 'flashes' property
  leds: max77693: add support for V4L2 Flash sub-device
  leds: aat1290: add support for V4L2 Flash sub-device

 .../devicetree/bindings/leds/leds-aat1290.txt      |   71 ++
 .../devicetree/bindings/media/samsung-fimc.txt     |    8 +
 Documentation/devicetree/bindings/mfd/max77693.txt |   61 ++
 .../devicetree/bindings/vendor-prefixes.txt        |    1 +
 Documentation/leds/leds-class-flash.txt            |   13 +
 drivers/leds/Kconfig                               |   18 +
 drivers/leds/Makefile                              |    2 +
 drivers/leds/leds-aat1290.c                        |  564 ++++++++++
 drivers/leds/leds-max77693.c                       | 1127 ++++++++++++++++++++
 drivers/media/platform/exynos4-is/media-dev.c      |   36 +-
 drivers/media/platform/exynos4-is/media-dev.h      |   13 +-
 drivers/media/v4l2-core/Kconfig                    |   12 +
 drivers/media/v4l2-core/Makefile                   |    2 +
 drivers/media/v4l2-core/v4l2-flash.c               |  601 +++++++++++
 include/dt-bindings/leds/common.h                  |   21 +
 include/linux/led-class-flash.h                    |    4 +-
 include/media/v4l2-flash.h                         |  145 +++
 17 files changed, 2694 insertions(+), 5 deletions(-)
 create mode 100644 Documentation/devicetree/bindings/leds/leds-aat1290.txt
 create mode 100644 drivers/leds/leds-aat1290.c
 create mode 100644 drivers/leds/leds-max77693.c
 create mode 100644 drivers/media/v4l2-core/v4l2-flash.c
 create mode 100644 include/dt-bindings/leds/common.h
 create mode 100644 include/media/v4l2-flash.h

-- 
1.7.9.5