pinctrl: Enable "power-source" to be extracted from DT files

Add "power-source" property to generic options used for DT parsing files.
This  enables drivers, which use generic pin configurations, to get the
value passed to this property.

Signed-off-by: Ivan T. Ivanov <iivanov@mm-sol.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
index 4414163e76d2..fa40a177164c 100644
--- a/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
@@ -156,6 +156,7 @@ input-disable		- disable input on pin (no effect on output)
 input-schmitt-enable    - enable schmitt-trigger mode
 input-schmitt-disable   - disable schmitt-trigger mode
 input-debounce          - debounce mode with debound time X
+power-source            - select between different power supplies
 low-power-enable        - enable low power mode
 low-power-disable       - disable low power mode
 output-low              - set the pin to output mode with low level