ASoC: samsung: i2s: Add DT interrupts property description

When the interrupts node is introduced in DT, we need to
describe the property and give usage example.

Change-Id: I2ac28a9e37e0a0fecf7f5712fd45ae36929e3c43
Signed-off-by: Huang Chao <chao7.huang@samsung.com>

diff --git a/Documentation/devicetree/bindings/sound/samsung-i2s.txt b/Documentation/devicetree/bindings/sound/samsung-i2s.txt
index 9f9b9e8..0cda914 100644 (file)
--- a/Documentation/devicetree/bindings/sound/samsung-i2s.txt
+++ b/Documentation/devicetree/bindings/sound/samsung-i2s.txt
@@ -5,6 +5,7 @@ Required SoC Specific Properties:
 - compatible: "samsung,i2s-v5"
 - reg: physical base address of the controller and length of memory mapped
   region.
+- interrupts: should contain I2S interrupt number.
 - dmas: list of DMA controller phandle and DMA request line ordered pairs.
 - dma-names: identifier string for each DMA request line in the dmas property.
   These strings correspond 1:1 with the ordered pairs in dmas.
@@ -40,6 +41,7 @@ Example:
 i2s@03830000 {
        compatible = "samsung,i2s-v5";
        reg = <0x03830000 0x100>;
+       interrupts = <0 97 0>;
        dmas = <&pdma0 10
                &pdma0 9
                &pdma0 8>;