Document usage of maxim,ena-gpios properties which turn on external/GPIO
control over regulator.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@xxxxxxxxxxx>
---
Documentation/devicetree/bindings/mfd/max77686.txt | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/Documentation/devicetree/bindings/mfd/max77686.txt b/Documentation/devicetree/bindings/mfd/max77686.txt
index 75fdfaf41831..e39f0bc1f55e 100644
--- a/Documentation/devicetree/bindings/mfd/max77686.txt
+++ b/Documentation/devicetree/bindings/mfd/max77686.txt
@@ -39,6 +39,12 @@ to get matched with their hardware counterparts as follow:
-BUCKn : 1-4.
Use standard regulator bindings for it ('regulator-off-in-suspend').
+ LDO20, LDO21, LDO22, BUCK8 and BUCK9 can be configured to GPIO enable
+ control. To turn this feature on this property must be added to the regulator
+ sub-node:
+ - maxim,ena-gpios : one GPIO specifier enable control (the gpio
+ flags are actually ignored and always
+ ACTIVE_HIGH is used)
Example:
@@ -65,4 +71,12 @@ Example:
regulator-always-on;
regulator-boot-on;
};
+
+ buck9_reg {
+ regulator-compatible = "BUCK9";
+ regulator-name = "CAM_ISP_CORE_1.2V";
+ regulator-min-microvolt = <1000000>;
+ regulator-max-microvolt = <1200000>;
+ maxim,ena-gpios = <&gpm0 3 GPIO_ACTIVE_HIGH>;
+ };
}
--
1.9.1
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