regulator: gpio: Document regulator-type property

Reported-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit 7f196ec938967af7c3aa2506b8edcd7da5f5ebc6)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

diff --git a/Documentation/devicetree/bindings/regulator/gpio-regulator.txt b/Documentation/devicetree/bindings/regulator/gpio-regulator.txt
index 3ecb585..5da9a66 100644 (file)
--- a/Documentation/devicetree/bindings/regulator/gpio-regulator.txt
+++ b/Documentation/devicetree/bindings/regulator/gpio-regulator.txt
@@ -11,6 +11,8 @@ Optional properties:
 - gpios-states         : gpios pin's initial states. 1 means HIGH
 - startup-delay-us     : Startup time in microseconds.
 - enable-active-high   : Polarity of GPIO is active high (default is low).
+- regulator-type       : Specifies what is being regulated, must be either
+                         "voltage" or "current", defaults to current.
 
 Any property defined as part of the core regulator binding defined in
 regulator.txt can also be used.