Add device tree bindings for si470x family radio receiver driver.

Signed-off-by: Paweł Chmiel <redacted>
---
 .../devicetree/bindings/media/si470x.txt      | 24 +++++++++++++++++++
 1 file changed, 24 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/media/si470x.txt

diff --git a/Documentation/devicetree/bindings/media/si470x.txt b/Documentation/devicetree/bindings/media/si470x.txt
new file mode 100644
index 000000000000..9294fdfd3aae
--- /dev/null
+++ b/Documentation/devicetree/bindings/media/si470x.txt

@@ -0,0 +1,24 @@
+* Silicon Labs FM Radio receiver
+
+The Silicon Labs Si470x is family of FM radio receivers with receive power scan
+supporting 76-108 MHz, programmable through an I2C interface.
+Some of them includes an RDS encoder.
+
+Required Properties:
+- compatible: Should contain "silabs,si470x"
+- reg: the I2C address of the device
+
+Optional Properties:
+- interrupts : The interrupt number
+
+Example:
+
+&i2c2 {
+        si470x@63 {
+                compatible = "silabs,si470x";
+                reg = <0x63>;
+
+                interrupt-parent = <&gpj2>;
+                interrupts = <4 IRQ_TYPE_EDGE_FALLING>;
+        };
+};