Add Skyworks SKY81452 device drivers

From: Gyungoh Yoo <jack.yoo@skyworksinc.com>

This patch set includes regulator and backlight driver for SKY81452.
Also it includes documents for device tree and module.
sky81452-regulator was already applied. So this series doesn't
include it.

v10:
Removed trivial get_brightness implementations for sky81452-backlight

v9:
Removed the change to remove MODULE_VERSION() for sky81452-regulator

v8:
Renamed property names for backlight with vendor prefix
Modified gpio-enable property to generic property for GPIO
Made up the example for backlight DT
Changed the DT parsing of regulator using regulator_node and of_match

v7:
Modified licensing text to GPLv2
Splitted Kconfig renaming from DT patch

v6:
Added new line character at the end of line of dev_err()

v5:
Changed DT for regulator : 'lout' node should be defined under 'regulator'
Removed compatible string from sky81452-regulator driver
Modified sky81452-regulator to return EINVAL when of_node is NULL
Move sky81452-backlight.h to include/linux/platform_data

v4:
Removed MODULE_VERSION()
Modified license to GPLv2
Removed calling to backlight_device_unregister() in sky81452-backlight

v3:
Cleaned-up DBG messages
Cleaned-up DT
Fixed the backlight name from 'sky81452-bl' to 'sky81452-backlight'
Assigned mfd_cell.of_compatible for binding device node
Modified error messages
Modified sky81452-regulator to return ENODATA when of_node is NULL

v2:
Split the patches for each sub-system
Added 'reg' attribute for I2C address in device tree documents
Added 'compatible' attribute in child drivers
Renamed CONFIG_SKY81452 to CONFIG_MFD_SKY81452
Changed the dependency from I2C=y to I2C, for CONFIG_MFD_SKY81452
Added message for exception or errors.
Added vendor prefix for Skyworks Solutions, Inc.
Add SKY81452 to the Trivial Devices list

Gyungoh Yoo (6):
  mfd: Add support for Skyworks SKY81452 driver
  backlight: Add support Skyworks SKY81452 backlight driver
  devicetree: mfd: Add new SKY81452 mfd binding
  devicetree: backlight: Add new SKY81452 backlight binding
  devicetree: Add vendor prefix for Skyworks Solutions, Inc.
  devicetree: i2c: Add SKY81452 to the Trivial Devices list

 .../devicetree/bindings/i2c/trivial-devices.txt    |   1 +
 Documentation/devicetree/bindings/mfd/sky81452.txt |  36 +++
 .../devicetree/bindings/vendor-prefixes.txt        |   1 +
 .../video/backlight/sky81452-backlight.txt         |  29 ++
 drivers/mfd/Kconfig                                |  12 +
 drivers/mfd/Makefile                               |   1 +
 drivers/mfd/sky81452.c                             | 108 +++++++
 drivers/video/backlight/Kconfig                    |  10 +
 drivers/video/backlight/Makefile                   |   1 +
 drivers/video/backlight/sky81452-backlight.c       | 334 +++++++++++++++++++++
 include/linux/mfd/sky81452.h                       |  31 ++
 include/linux/platform_data/sky81452-backlight.h   |  46 +++
 12 files changed, 610 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/sky81452.txt
 create mode 100644 Documentation/devicetree/bindings/video/backlight/sky81452-backlight.txt
 create mode 100644 drivers/mfd/sky81452.c
 create mode 100644 drivers/video/backlight/sky81452-backlight.c
 create mode 100644 include/linux/mfd/sky81452.h
 create mode 100644 include/linux/platform_data/sky81452-backlight.h

-- 
1.9.1

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