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| author |   Nikita Yushchenko <nikita.yoush@cogentembedded.com> | 2016-09-26 12:56:51 +0300 |
|---|---|---|
| committer |   Mark Brown <broonie@kernel.org> | 2016-09-26 09:04:14 -0700 |
| commit | 899a247cf6d5bbb9eb799261791441d7d5ea2099 (patch) | |
| tree | 90641000368d883f44b6a43aa4d59f43275845db /Documentation/devicetree/bindings/sound | |
| parent | ASoC: simple-card: use kzalloc() for dai_props / dai_link (diff) | |
| download | linux-dev-899a247cf6d5bbb9eb799261791441d7d5ea2099.tar.xz linux-dev-899a247cf6d5bbb9eb799261791441d7d5ea2099.zip | |
ASoC: simple-card: add support for aux devices
Add device tree property to define auxiliary devices to be added to
simle-audio-card.
Together with proper audio routing definition, this allows to use
simple-card in setups where separate amplifier chip is connected to
codec's output.
Signed-off-by: Nikita Yushchenko <nikita.yoush@cogentembedded.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/sound')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/simple-card.txt | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/simple-card.txt b/Documentation/devicetree/bindings/sound/simple-card.txt index cf3979eb3578..5ecdde6d9f63 100644 --- a/Documentation/devicetree/bindings/sound/simple-card.txt +++ b/Documentation/devicetree/bindings/sound/simple-card.txt @@ -22,6 +22,8 @@ Optional properties: headphones are attached. - simple-audio-card,mic-det-gpio : Reference to GPIO that signals when a microphone is attached. +- simple-audio-card,aux-devs : List of phandles pointing to auxiliary devices, such + as amplifiers, to be added to the sound card. Optional subnodes: @@ -162,3 +164,38 @@ sound { }; }; }; + +Example 3 - route audio from IMX6 SSI2 through TLV320DAC3100 codec +through TPA6130A2 amplifier to headphones: + +&i2c0 { + codec: tlv320dac3100@18 { + compatible = "ti,tlv320dac3100"; + ... + } + + amp: tpa6130a2@60 { + compatible = "ti,tpa6130a2"; + ... + } +} + +sound { + compatible = "simple-audio-card"; + ... + simple-audio-card,widgets = + "Headphone", "Headphone Jack"; + simple-audio-card,routing = + "Headphone Jack", "HPLEFT", + "Headphone Jack", "HPRIGHT", + "LEFTIN", "HPL", + "RIGHTIN", "HPR"; + simple-audio-card,aux-devs = <&>; + simple-audio-card,cpu { + sound-dai = <&ssi2>; + }; + simple-audio-card,codec { + sound-dai = <&codec>; + clocks = ... + }; +}; |