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-rw-r--r--Documentation/devicetree/bindings/sound/rt5677.txt9
1 files changed, 9 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/rt5677.txt b/Documentation/devicetree/bindings/sound/rt5677.txt
index 98509fb7481b..bd28df604b7b 100644
--- a/Documentation/devicetree/bindings/sound/rt5677.txt
+++ b/Documentation/devicetree/bindings/sound/rt5677.txt
@@ -10,6 +10,11 @@ Required properties:
- interrupts : The CODEC's interrupt output.
+- gpio-controller : Indicates this device is a GPIO controller.
+
+- #gpio-cells : Should be two. The first cell is the pin number and the
+ second cell is used to specify optional parameters (currently unused).
+
Optional properties:
- realtek,pow-ldo2-gpio : The GPIO that controls the CODEC's POW_LDO2 pin.
@@ -36,6 +41,10 @@ rt5677 {
reg = <0x2c>;
interrupt-parent = <&gpio>;
interrupts = <TEGRA_GPIO(W, 3) GPIO_ACTIVE_HIGH>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+
realtek,pow-ldo2-gpio =
<&gpio TEGRA_GPIO(V, 3) GPIO_ACTIVE_HIGH>;
};