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| author | Jean-Francois Moine <moinejf@free.fr> | 2014-03-20 11:04:16 +0100 |
|---|---|---|
| committer | Stephane Desneux <stephane.desneux@open.eurogiciel.org> | 2015-02-04 11:13:33 +0100 |
| commit | 282383113a12f9815e591ad1f53ddc6a0621969e (patch) | |
| tree | cc0cdc9456de5f778f48929e11fd61c6127377ee /Documentation | |
| parent | 0494031406a31abda43e0b253e7851cb66c1298d (diff) | |
| download | linux-stable-282383113a12f9815e591ad1f53ddc6a0621969e.tar.gz linux-stable-282383113a12f9815e591ad1f53ddc6a0621969e.tar.bz2 linux-stable-282383113a12f9815e591ad1f53ddc6a0621969e.zip | |
ASoC: simple-card: Add DT documentation for multi-DAI links
Many couples of CPU/CODEC DAI links may be described in the DT
thanks to 'simple-audio-card,dai-link' containers.
Signed-off-by: Jean-Francois Moine <moinejf@free.fr>
Signed-off-by: Mark Brown <broonie@linaro.org>
(cherry picked from commit 015f630de86c8a79df45c475c34087d3e96b882a)
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/simple-card.txt | 42 |
1 files changed, 41 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/sound/simple-card.txt b/Documentation/devicetree/bindings/sound/simple-card.txt index 881914b139ca..131aa2ad7f1a 100644 --- a/Documentation/devicetree/bindings/sound/simple-card.txt +++ b/Documentation/devicetree/bindings/sound/simple-card.txt @@ -23,6 +23,11 @@ Optional properties: Required subnodes: +- simple-audio-card,dai-link : container for the CPU and CODEC sub-nodes + This container may be omitted when the + card has only one DAI link. + See the examples. + - simple-audio-card,cpu : CPU sub-node - simple-audio-card,codec : CODEC sub-node @@ -49,7 +54,7 @@ Note: CPU and CODEC sides as we need to keep the settings identical for both ends of the link. -Example: +Example 1 - single DAI link: sound { compatible = "simple-audio-card"; @@ -94,3 +99,38 @@ sh_fsi2: sh_fsi2@ec230000 { interrupt-parent = <&gic>; interrupts = <0 146 0x4>; }; + +Example 2 - many DAI links: + +sound { + compatible = "simple-audio-card"; + simple-audio-card,name = "Cubox Audio"; + simple-audio-card,format = "i2s"; + + simple-audio-card,dai-link@0 { /* I2S - HDMI */ + simple-audio-card,cpu { + sound-dai = <&audio1 0>; + }; + simple-audio-card,codec { + sound-dai = <&tda998x 0>; + }; + }; + + simple-audio-card,dai-link@1 { /* S/PDIF - HDMI */ + simple-audio-card,cpu { + sound-dai = <&audio1 1>; + }; + simple-audio-card,codec { + sound-dai = <&tda998x 1>; + }; + }; + + simple-audio-card,dai-link@2 { /* S/PDIF - S/PDIF */ + simple-audio-card,cpu { + sound-dai = <&audio1 1>; + }; + simple-audio-card,codec { + sound-dai = <&spdif_codec>; + }; + }; +}; |