diff options
| author | Sean Cross <xobs@kosagi.com> | 2014-07-31 10:43:37 +0800 |
|---|---|---|
| committer | Mark Brown <broonie@linaro.org> | 2014-08-16 17:18:07 -0500 |
| commit | 7e7292dba2155c1433ce9f9a819f1acb9090747b (patch) | |
| tree | b90f3a7f58b55e8911746e9f665a4a7089058620 /Documentation/devicetree/bindings/sound/imx-audio-es8328.txt | |
| parent | e1a65374a3bcaf34eb67322b3e761965f333a66a (diff) | |
| download | linux-7e7292dba2155c1433ce9f9a819f1acb9090747b.tar.bz2 | |
ASoC: fsl: add imx-es8328 machine driver
This adds an initial machine driver for the ES8328 audio codec on Freescale
boards. The driver supports headphones and an audio regulator for an onboard
speaker amp.
Signed-off-by: Sean Cross <xobs@kosagi.com>
Signed-off-by: Mark Brown <broonie@linaro.org>
Diffstat (limited to 'Documentation/devicetree/bindings/sound/imx-audio-es8328.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/sound/imx-audio-es8328.txt | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/sound/imx-audio-es8328.txt b/Documentation/devicetree/bindings/sound/imx-audio-es8328.txt new file mode 100644 index 000000000000..07b68ab206fb --- /dev/null +++ b/Documentation/devicetree/bindings/sound/imx-audio-es8328.txt @@ -0,0 +1,60 @@ +Freescale i.MX audio complex with ES8328 codec + +Required properties: +- compatible : "fsl,imx-audio-es8328" +- model : The user-visible name of this sound complex +- ssi-controller : The phandle of the i.MX SSI controller +- jack-gpio : Optional GPIO for headphone jack +- audio-amp-supply : Power regulator for speaker amps +- audio-codec : The phandle of the ES8328 audio codec +- 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 could be power supplies, ES8328 + pins, and the jacks on the board: + + Power supplies: + * audio-amp + + ES8328 pins: + * LOUT1 + * LOUT2 + * ROUT1 + * ROUT2 + * LINPUT1 + * LINPUT2 + * RINPUT1 + * RINPUT2 + * Mic PGA + + Board connectors: + * Headphone + * Speaker + * Mic Jack +- mux-int-port : The internal port of the i.MX audio muxer (AUDMUX) +- mux-ext-port : The external port of the i.MX audio muxer (AUDMIX) + +Note: The AUDMUX port numbering should start at 1, which is consistent with +hardware manual. + +Example: + +sound { + compatible = "fsl,imx-audio-es8328"; + model = "imx-audio-es8328"; + ssi-controller = <&ssi1>; + audio-codec = <&codec>; + jack-gpio = <&gpio5 15 0>; + audio-amp-supply = <®_audio_amp>; + audio-routing = + "Speaker", "LOUT2", + "Speaker", "ROUT2", + "Speaker", "audio-amp", + "Headphone", "ROUT1", + "Headphone", "LOUT1", + "LINPUT1", "Mic Jack", + "RINPUT1", "Mic Jack", + "Mic Jack", "Mic Bias"; + mux-int-port = <1>; + mux-ext-port = <3>; +}; |