Document the bindings for AK5558 ADC.
Signed-off-by: Daniel Baluta <daniel.bal...@nxp.com>
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Documentation/devicetree/bindings/sound/ak5558.txt | 22 ++++++++++++++++++++++
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+AK5558 8 channel differential 32-bit delta-sigma ADC
+
+This device supports I2C mode only.
+
+Required properties:
+
+- compatible : "asahi-kasei,ak5558"
+- reg : The I2C address of the device.
+
+Optional properties:
+
+- reset-gpios: A GPIO specifier for the power down & reset pin.
+
+Example:
+
+&i2c {
+ ak5558: adc@10 {
+ compatible = "asahi-kasei,ak5558";
+ reg = <0x10>;
+ reset-gpios = <&gpio1 10 GPIO_ACTIVE_LOW>;
+ };
+};
--
2.7.4
