[PATCH v3 11/14] mfd/regulator: dt-bindings: max77686: Document gpio properties

[Krzysztof Kozlowski]

Document usage of gpio properties which turn on external/GPIO control
over regulator.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski at samsung.com>
---
 Documentation/devicetree/bindings/mfd/max77686.txt | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/Documentation/devicetree/bindings/mfd/max77686.txt b/Documentation/devicetree/bindings/mfd/max77686.txt
index f4010a9f66eb..b8013e69da65 100644
--- a/Documentation/devicetree/bindings/mfd/max77686.txt
+++ b/Documentation/devicetree/bindings/mfd/max77686.txt
@@ -22,7 +22,14 @@ Optional node:
   Required property:
   - compatible : Must be "maxim,max77686-pmic"
 
-  Optional properties: For each regulator use following format:
+  Optional properties:
+  - ldo20-gpio : GPIO to use for LDO20 enable control.
+  - ldo21-gpio : GPIO to use for LDO21 enable control.
+  - ldo22-gpio : GPIO to use for LDO22 enable control.
+  - buck8-gpio : GPIO to use for BUCK8 enable control.
+  - buck9-gpio : GPIO to use for BUCK9 enable control.
+
+  For each regulator use following format:
 	regulator_name {
 		regulator-compatible = LDOn/BUCKn
 		standard regulator constraints....
@@ -42,7 +49,6 @@ to get matched with their hardware counterparts as follow:
 	-BUCKn	:	1-4.
   Use standard regulator bindings for it ('regulator-off-in-suspend').
 
-
 Example:
 
 	max77686 at 09 {
@@ -53,6 +59,7 @@ Example:
 
 		voltage-regulators {
 			compatible = "maxim,max77686-pmic";
+			ldo21-gpio = <&gpy2 0 GPIO_ACTIVE_HIGH>;
 
 			ldo11_reg {
 				regulator-compatible = "LDO11";
-- 
1.9.1