Add the documentation for dt-binding of the digital audio codec driver for sun8i SoC.
Signed-off-by: Mylène Josserand mylene.josserand@free-electrons.com --- .../devicetree/bindings/sound/sun8i-codec.txt | 24 ++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/sun8i-codec.txt
diff --git a/Documentation/devicetree/bindings/sound/sun8i-codec.txt b/Documentation/devicetree/bindings/sound/sun8i-codec.txt new file mode 100644 index 0000000..1808869 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/sun8i-codec.txt @@ -0,0 +1,24 @@ +* Allwinner A23/A33 Codec + +Required properties: +- compatible: must be either "allwinner,sun4i-a23-codec" or + "allwinner,sun7i-a33-codec" +- reg: must contain the registers location and length +- interrupts: must contain the codec interrupt +- clocks: a list of phandle + clock-specifer pairs, one for each entry + in clock-names. +- clock-names: should contain followings: + - "apb": the parent APB clock for this controller + - "codec": the parent module clock + +Example: +codec: codec@01c22e00 { + #sound-dai-cells = <0>; + compatible = "allwinner,sun8i-a33-codec"; + reg = <0x01c22e00 0x400>; /* SUNXI_AUDIO_PBASE + 0x200 */ + reg-names = "audio"; + interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&ccu CLK_BUS_CODEC>, <&ccu CLK_AC_DIG>; + clock-names = "apb", "codec"; + status = "disabled"; +};