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* Allwinner A10 Codec
Required properties:
- compatible: must be one of the following compatibles:
- "allwinner,sun4i-a10-codec"
- "allwinner,sun6i-a31-codec"
- "allwinner,sun7i-a20-codec"
- "allwinner,sun8i-a23-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
Optional properties:
- allwinner,pa-gpios: gpio to enable external amplifier
Required properties for the following compatibles:
- "allwinner,sun6i-a31-codec"
- "allwinner,sun8i-a23-codec"
- resets: phandle to the reset control for this device
- allwinner,audio-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. Valid names include:
Audio pins on the SoC:
"HP"
"HPCOM"
"LINEIN"
"LINEOUT" (not on sun8i-a23)
"MIC1"
"MIC2"
"MIC3" (sun6i-a31 only)
Microphone biases from the SoC:
"HBIAS"
"MBIAS"
Board connectors:
"Headphone"
"Headset Mic"
"Line In"
"Line Out"
"Mic"
"Speaker"
Required properties for the following compatibles:
- "allwinner,sun8i-a23-codec"
- allwinner,codec-analog-controls: A phandle to the codec analog controls
block in the PRCM.
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";
};
codec: codec@01c22c00 {
#sound-dai-cells = <0>;
compatible = "allwinner,sun6i-a31-codec";
reg = <0x01c22c00 0x98>;
interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
clocks = <&ccu CLK_APB1_CODEC>, <&ccu CLK_CODEC>;
clock-names = "apb", "codec";
resets = <&ccu RST_APB1_CODEC>;
dmas = <&dma 15>, <&dma 15>;
dma-names = "rx", "tx";
allwinner,audio-routing =
"Headphone", "HP",
"Speaker", "LINEOUT",
"LINEIN", "Line In",
"MIC1", "MBIAS",
"MIC1", "Mic",
"MIC2", "HBIAS",
"MIC2", "Headset Mic";
};
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