input: Add support for the WM831x ON pin

The WM831x series of PMICs support control of initial power on
through the ON pin on the device with soft control of the pin
at other times. Represent this to userspace as KEY_POWER.

Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Acked-by: Dmitry Torokhov <dtor@mail.ru>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/input/misc/Kconfig b/drivers/input/misc/Kconfig
index cbe21bc96b52..852941d108ff 100644
--- a/drivers/input/misc/Kconfig
+++ b/drivers/input/misc/Kconfig
@@ -279,4 +279,14 @@ config INPUT_BFIN_ROTARY
           To compile this driver as a module, choose M here: the
           module will be called bfin-rotary.
 
+config INPUT_WM831X_ON
+        tristate "WM831X ON pin"
+        depends on MFD_WM831X
+        help
+          Support the ON pin of WM831X PMICs as an input device
+          reporting power button status.
+
+          To compile this driver as a module, choose M here: the module
+          will be called wm831x_on.
+
 endif