From: Maxime Ripard Date: Sat, 12 Sep 2015 13:26:23 +0000 (+0200) Subject: ASoC: sunxi: Add the Allwinner A10 codec bindings X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=4ec73d3c81be5a401546afc6628aaf8add253ff1;p=linux-beck.git ASoC: sunxi: Add the Allwinner A10 codec bindings The Allwinner SoCs have an in-SoC audio controller taking the role of a DAI and a codec. Add the binding documentation for that controller on the A10. Signed-off-by: Maxime Ripard Signed-off-by: Mark Brown --- diff --git a/Documentation/devicetree/bindings/sound/sun4i-codec.txt b/Documentation/devicetree/bindings/sound/sun4i-codec.txt new file mode 100644 index 000000000000..680144b74ae9 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/sun4i-codec.txt @@ -0,0 +1,33 @@ +* Allwinner A10 Codec + +Required properties: +- compatible: must be either "allwinner,sun4i-a10-codec" or + "allwinner,sun7i-a20-codec" +- reg: must contain the registers location and length +- interrupts: must contain the codec interrupt +- dmas: DMA channels for tx and rx dma. See the DMA client binding, + Documentation/devicetree/bindings/dma/dma.txt +- dma-names: should include "tx" and "rx". +- 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 +- routing : A list of the connections between audio components. Each + entry is a pair of strings, the first being the connection's sink, + the second being the connection's source. + + +Example: +codec: codec@01c22c00 { + #sound-dai-cells = <0>; + compatible = "allwinner,sun7i-a20-codec"; + reg = <0x01c22c00 0x40>; + interrupts = <0 30 4>; + clocks = <&apb0_gates 0>, <&codec_clk>; + clock-names = "apb", "codec"; + dmas = <&dma 0 19>, <&dma 0 19>; + dma-names = "rx", "tx"; + routing = "Headphone Jack", "HP Right", + "Headphone Jack", "HP Left"; +};