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Date: Wed, 11 Jan 2017 14:02:00 -0600
From: David Lechner <david@...hnology.com>
To: linux-input@...r.kernel.org, devicetree@...r.kernel.org
Cc: David Lechner <david@...hnology.com>,
Dmitry Torokhov <dmitry.torokhov@...il.com>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
linux-kernel@...r.kernel.org
Subject: [PATCH v2 2/3] dt-bindings: Input: Add optional amp-supply property to pwm-beeper
This adds an optional amp-supply property to pwm-beeper. This is a
regulator that acts as an amplifier for the beeper.
Signed-off-by: David Lechner <david@...hnology.com>
---
Documentation/devicetree/bindings/input/pwm-beeper.txt | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/Documentation/devicetree/bindings/input/pwm-beeper.txt b/Documentation/devicetree/bindings/input/pwm-beeper.txt
index be332ae..529408b 100644
--- a/Documentation/devicetree/bindings/input/pwm-beeper.txt
+++ b/Documentation/devicetree/bindings/input/pwm-beeper.txt
@@ -5,3 +5,19 @@ Registers a PWM device as beeper.
Required properties:
- compatible: should be "pwm-beeper"
- pwms: phandle to the physical PWM device
+
+Optional properties:
+- amp-supply: phandle to a regulator that acts as an amplifier for the beeper
+
+Example:
+
+beeper_amp: amplifier {
+ compatible = "fixed-regulator";
+ gpios = <&gpio0 1 GPIO_ACTIVE_HIGH>;
+};
+
+beeper {
+ compatible = "pwm-beeper";
+ pwms = <&pwm0>;
+ amp-supply = <&beeper_amp>;
+};
--
2.7.4
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