diff options
| author | Mark Brown <broonie@opensource.wolfsonmicro.com> | 2009-09-05 15:09:20 +0200 |
|---|---|---|
| committer | Richard Purdie <rpurdie@linux.intel.com> | 2009-09-07 15:05:07 +0200 |
| commit | a4f3d55cb0b8e1199e352c30ea9a264cef9c1ae1 (patch) | |
| tree | 8b9fb9b49dde8139f31adf4e81037678c428aa59 /drivers/video/backlight/Kconfig | |
| parent | Linux 2.6.31-rc9 (diff) | |
| download | linux-a4f3d55cb0b8e1199e352c30ea9a264cef9c1ae1.tar.xz linux-a4f3d55cb0b8e1199e352c30ea9a264cef9c1ae1.zip | |
backlight: Add WM831x backlight driver
The WM831x series of PMICs provide DC-DC boost convertors and current
sinks which can be used together to drive LEDs for use as backlights.
Expose this functionality via the backlight API.
Since when used in this configuration the current sink and boost
convertor are very tightly coupled with a multi-stage startup for
the current sink which overlaps with the boost convertor startup
this driver bypasses the regulator API. Machine inititialisation
is responsible for ensuring that the regulators are not accessed
via both APIs.
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Signed-off-by: Richard Purdie <rpurdie@linux.intel.com>
Diffstat (limited to 'drivers/video/backlight/Kconfig')
| -rw-r--r-- | drivers/video/backlight/Kconfig | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/video/backlight/Kconfig b/drivers/video/backlight/Kconfig index f9d19be05540..f86dbfd209ad 100644 --- a/drivers/video/backlight/Kconfig +++ b/drivers/video/backlight/Kconfig @@ -229,3 +229,10 @@ config BACKLIGHT_SAHARA help If you have a Tabletkiosk Sahara Touch-iT, say y to enable the backlight driver. + +config BACKLIGHT_WM831X + tristate "WM831x PMIC Backlight Driver" + depends on BACKLIGHT_CLASS_DEVICE && MFD_WM831X + help + If you have a backlight driven by the ISINK and DCDC of a + WM831x PMIC say y to enable the backlight driver for it. |