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Documentation / devicetree / bindings / sound / sun4i-codec.txt


Based on kernel version 4.16.1. Page generated on 2018-04-09 11:52 EST.

1	* Allwinner A10 Codec
2	
3	Required properties:
4	- compatible: must be one of the following compatibles:
5			- "allwinner,sun4i-a10-codec"
6			- "allwinner,sun6i-a31-codec"
7			- "allwinner,sun7i-a20-codec"
8			- "allwinner,sun8i-a23-codec"
9			- "allwinner,sun8i-h3-codec"
10			- "allwinner,sun8i-v3s-codec"
11	- reg: must contain the registers location and length
12	- interrupts: must contain the codec interrupt
13	- dmas: DMA channels for tx and rx dma. See the DMA client binding,
14		Documentation/devicetree/bindings/dma/dma.txt
15	- dma-names: should include "tx" and "rx".
16	- clocks: a list of phandle + clock-specifer pairs, one for each entry
17	  in clock-names.
18	- clock-names: should contain the following:
19	   - "apb": the parent APB clock for this controller
20	   - "codec": the parent module clock
21	
22	Optional properties:
23	- allwinner,pa-gpios: gpio to enable external amplifier
24	
25	Required properties for the following compatibles:
26			- "allwinner,sun6i-a31-codec"
27			- "allwinner,sun8i-a23-codec"
28			- "allwinner,sun8i-h3-codec"
29			- "allwinner,sun8i-v3s-codec"
30	- resets: phandle to the reset control for this device
31	- allwinner,audio-routing: A list of the connections between audio components.
32				   Each entry is a pair of strings, the first being the
33				   connection's sink, the second being the connection's
34				   source. Valid names include:
35	
36				   Audio pins on the SoC:
37				   "HP"
38				   "HPCOM"
39				   "LINEIN"	(not on sun8i-v3s)
40				   "LINEOUT"	(not on sun8i-a23 or sun8i-v3s)
41				   "MIC1"
42				   "MIC2"	(not on sun8i-v3s)
43				   "MIC3"	(sun6i-a31 only)
44	
45				   Microphone biases from the SoC:
46				   "HBIAS"
47				   "MBIAS"	(not on sun8i-v3s)
48	
49				   Board connectors:
50				   "Headphone"
51				   "Headset Mic"
52				   "Line In"
53				   "Line Out"
54				   "Mic"
55				   "Speaker"
56	
57	Required properties for the following compatibles:
58			- "allwinner,sun8i-a23-codec"
59			- "allwinner,sun8i-h3-codec"
60			- "allwinner,sun8i-v3s-codec"
61	- allwinner,codec-analog-controls: A phandle to the codec analog controls
62					   block in the PRCM.
63	
64	Example:
65	codec: codec@1c22c00 {
66		#sound-dai-cells = <0>;
67		compatible = "allwinner,sun7i-a20-codec";
68		reg = <0x01c22c00 0x40>;
69		interrupts = <0 30 4>;
70		clocks = <&apb0_gates 0>, <&codec_clk>;
71		clock-names = "apb", "codec";
72		dmas = <&dma 0 19>, <&dma 0 19>;
73		dma-names = "rx", "tx";
74	};
75	
76	codec: codec@1c22c00 {
77		#sound-dai-cells = <0>;
78		compatible = "allwinner,sun6i-a31-codec";
79		reg = <0x01c22c00 0x98>;
80		interrupts = <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>;
81		clocks = <&ccu CLK_APB1_CODEC>, <&ccu CLK_CODEC>;
82		clock-names = "apb", "codec";
83		resets = <&ccu RST_APB1_CODEC>;
84		dmas = <&dma 15>, <&dma 15>;
85		dma-names = "rx", "tx";
86		allwinner,audio-routing =
87			"Headphone", "HP",
88			"Speaker", "LINEOUT",
89			"LINEIN", "Line In",
90			"MIC1",	"MBIAS",
91			"MIC1", "Mic",
92			"MIC2", "HBIAS",
93			"MIC2", "Headset Mic";
94	};
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