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authorMaxime Ripard <maxime.ripard@free-electrons.com>2015-09-12 15:26:23 +0200
committerMark Brown <broonie@kernel.org>2015-09-16 20:18:37 +0100
commit4ec73d3c81be5a401546afc6628aaf8add253ff1 (patch)
treed8154e739ca64dbce1d08193953ee288b328b70d
parent6ff33f3902c3b1c5d0db6b1e2c70b6d76fba357f (diff)
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 <maxime.ripard@free-electrons.com> Signed-off-by: Mark Brown <broonie@kernel.org>
-rw-r--r--Documentation/devicetree/bindings/sound/sun4i-codec.txt33
1 files changed, 33 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/sun4i-codec.txt b/Documentation/devicetree/bindings/sound/sun4i-codec.txt
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+++ b/Documentation/devicetree/bindings/sound/sun4i-codec.txt
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+* 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";
+};