[2/4] ASoC: meson: add axg spdif input DT binding documentation

Commit Message

Jerome Brunet Dec. 11, 2018, 1:47 p.m. UTC

Add the DT binding documentation for axg's SPDIF input.

Signed-off-by: Jerome Brunet <[e-mail]>
---
 .../bindings/sound/amlogic,axg-spdifin.txt    | 22 +++++++++++++++++++
 1 file changed, 22 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/amlogic,axg-spdifin.txt

Patch

diff --git a/Documentation/devicetree/bindings/sound/amlogic,axg-spdifin.txt b/Documentation/devicetree/bindings/sound/amlogic,axg-spdifin.txt
new file mode 100644
index 000000000000..2e6cb7d9b202
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/amlogic,axg-spdifin.txt
@@ -0,0 +1,22 @@ 
+* Amlogic Audio SPDIF Input
+
+Required properties:
+- compatible: 'amlogic,axg-spdifin'
+- interrupts: interrupt specifier for the spdif input.
+- clocks: list of clock phandle, one for each entry clock-names.
+- clock-names: should contain the following:
+  * "pclk" : peripheral clock.
+  * "refclk" : spdif input reference clock
+- #sound-dai-cells: must be 0.
+
+Example on the A113 SoC:
+
+spdifin: audio-controller@400 {
+	compatible = "amlogic,axg-spdifin";
+	reg = <0x0 0x400 0x0 0x30>;
+	#sound-dai-cells = <0>;
+	interrupts = <GIC_SPI 87 IRQ_TYPE_EDGE_RISING>;
+	clocks = <&clkc_audio AUD_CLKID_SPDIFIN>,
+		 <&clkc_audio AUD_CLKID_SPDIFIN_CLK>;
+	clock-names = "pclk", "refclk";
+};