summaryrefslogtreecommitdiff
path: root/Documentation/devicetree/bindings/sound/rt5640.txt
diff options
context:
space:
mode:
Diffstat (limited to 'Documentation/devicetree/bindings/sound/rt5640.txt')
-rw-r--r--Documentation/devicetree/bindings/sound/rt5640.txt30
1 files changed, 30 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/rt5640.txt b/Documentation/devicetree/bindings/sound/rt5640.txt
new file mode 100644
index 000000000000..005bcb24d72d
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/rt5640.txt
@@ -0,0 +1,30 @@
+RT5640 audio CODEC
+
+This device supports I2C only.
+
+Required properties:
+
+- compatible : "realtek,rt5640".
+
+- reg : The I2C address of the device.
+
+- interrupts : The CODEC's interrupt output.
+
+Optional properties:
+
+- realtek,in1-differential
+- realtek,in2-differential
+ Boolean. Indicate MIC1/2 input are differential, rather than single-ended.
+
+- realtek,ldo1-en-gpios : The GPIO that controls the CODEC's LDO1_EN pin.
+
+Example:
+
+rt5640 {
+ compatible = "realtek,rt5640";
+ reg = <0x1c>;
+ interrupt-parent = <&gpio>;
+ interrupts = <TEGRA_GPIO(W, 3) GPIO_ACTIVE_HIGH>;
+ realtek,ldo1-en-gpios =
+ <&gpio TEGRA_GPIO(V, 3) GPIO_ACTIVE_HIGH>;
+};