[PATCH 2/3] dt-bindings: Input: Add enable-gpios to pwm-beeper

[David Lechner]

This adds an optional enable-gpios property to pwm-beeper. This gpio is
used to enable the beeper. For example, the beeper may have an amplifier
that needs to be switched on.

Signed-off-by: David Lechner <david@xxxxxxxxxxxxxx>
---
 Documentation/devicetree/bindings/input/pwm-beeper.txt | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/Documentation/devicetree/bindings/input/pwm-beeper.txt b/Documentation/devicetree/bindings/input/pwm-beeper.txt
index be332ae..1c6bcf8 100644
--- a/Documentation/devicetree/bindings/input/pwm-beeper.txt
+++ b/Documentation/devicetree/bindings/input/pwm-beeper.txt
@@ -5,3 +5,14 @@ Registers a PWM device as beeper.
 Required properties:
 - compatible: should be "pwm-beeper"
 - pwms: phandle to the physical PWM device
+
+Optional properties:
+- enable-gpios: phandle to gpio to enable the beeper
+
+Example:
+
+beeper {
+	compatible = "pwm-beeper";
+	pwms = <&pwm0>;
+	enable-gpios = <&gpio0 1 GPIO_ACTIVE_LOW>;
+};
-- 
2.7.4