bindings/sound/fsl-asoc-card.txt

1 Freescale Generic ASoC Sound Card with ASRC support
3 The Freescale Generic ASoC Sound Card can be used, ideally, for all Freescale
6 The idea of this generic sound card is a bit like ASoC Simple Card. However,
8 have ASRC (Documentation/devicetree/bindings/sound/fsl,asrc.txt) inside. And
12 So having this generic sound card allows all Freescale SoC users to benefit
16 Note: The card is initially designed for those sound cards who use AC'97, I2S
17       and PCM DAI formats. However, it'll be also possible to support those non
18       AC'97/I2S/PCM type sound cards, such as S/PDIF audio and HDMI audio, as
22 The compatible list for this generic sound card currently:
23  "fsl,imx-audio-ac97"
25  "fsl,imx-audio-cs42888"
27  "fsl,imx-audio-cs427x"
30  "fsl,imx-audio-wm8962"
32  "fsl,imx-audio-sgtl5000"
33  (compatible with Documentation/devicetree/bindings/sound/imx-audio-sgtl5000.txt)
35  "fsl,imx-audio-wm8960"
37  "fsl,imx-audio-mqs"
39  "fsl,imx-audio-wm8524"
41  "fsl,imx-audio-tlv320aic32x4"
45   - compatible		: Contains one of entries in the compatible list.
47   - model		: The user-visible name of this sound complex
49   - audio-cpu		: The phandle of an CPU DAI controller
51   - audio-codec		: The phandle of an audio codec
55   - audio-asrc		: The phandle of ASRC. It can be absent if there's no
58   - audio-routing	: A list of the connections between audio components.
61 			  source. There're a few pre-designed board connectors:
74   - hp-det-gpio		: The GPIO that detect headphones are plugged in
75   - mic-det-gpio	: The GPIO that detect microphones are plugged in
76   - bitclock-master	: Indicates dai-link bit clock master; for details see simple-card.yaml.
77   - frame-master	: Indicates dai-link frame master; for details see simple-card.yaml.
78   - dai-format		: audio format, for details see simple-card.yaml.
79   - frame-inversion	: dai-link uses frame clock inversion, for details see simple-card.yaml.
80   - bitclock-inversion	: dai-link uses bit clock inversion, for details see simple-card.yaml.
82 Optional unless SSI is selected as a CPU DAI:
84   - mux-int-port	: The internal port of the i.MX audio muxer (AUDMUX)
86   - mux-ext-port	: The external port of the i.MX audio muxer
89 sound-cs42888 {
90 	compatible = "fsl,imx-audio-cs42888";
91 	model = "cs42888-audio";
92 	audio-cpu = <&esai>;
93 	audio-asrc = <&asrc>;
94 	audio-codec = <&cs42888>;
95 	audio-routing =