diff --git a/Documentation/devicetree/bindings/media/sunxi-ir.txt b/Documentation/devicetree/bindings/media/sunxi-ir.txt
index 91648c569b1e5aba640f760f9b78d36dd873ac08..278098987edbd5990850d50e6992f7091dd0d392 100644
--- a/Documentation/devicetree/bindings/media/sunxi-ir.txt
+++ b/Documentation/devicetree/bindings/media/sunxi-ir.txt
@@ -11,6 +11,8 @@ Required properties:
 Optional properties:
 - linux,rc-map-name: see rc.txt file in the same directory.
 - resets : phandle + reset specifier pair
+- clock-frequency  : IR Receiver clock frequency, in Hertz. Defaults to 8 MHz
+		     if missing.
 
 Example:
 
@@ -18,6 +20,7 @@ ir0: ir@1c21800 {
 	compatible = "allwinner,sun4i-a10-ir";
 	clocks = <&apb0_gates 6>, <&ir0_clk>;
 	clock-names = "apb", "ir";
+	clock-frequency = <3000000>;
 	resets = <&apb0_rst 1>;
 	interrupts = <0 5 1>;
 	reg = <0x01C21800 0x40>;