Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / Documentation / devicetree / bindings / sound / ssm2518.txt

diff --git a/kernel/Documentation/devicetree/bindings/sound/ssm2518.txt b/kernel/Documentation/devicetree/bindings/sound/ssm2518.txt
new file mode 100644 (file)
index 0000000..59381a7
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/sound/ssm2518.txt
@@ -0,0 +1,20 @@
+SSM2518 audio amplifier
+
+This device supports I2C only.
+
+Required properties:
+  - compatible : Must be "adi,ssm2518"
+  - reg : the I2C address of the device. This will either be 0x34 (ADDR pin low)
+       or 0x35 (ADDR pin high)
+
+Optional properties:
+  - gpios : GPIO connected to the nSD pin. If the property is not present it is
+               assumed that the nSD pin is hardwired to always on.
+
+Example:
+
+       ssm2518: ssm2518@34 {
+               compatible = "adi,ssm2518";
+               reg = <0x34>;
+               gpios = <&gpio 5 0>;
+       };