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Diffstat (limited to 'dts/Bindings/sound/google,cros-ec-codec.txt')
| -rw-r--r-- | dts/Bindings/sound/google,cros-ec-codec.txt | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/dts/Bindings/sound/google,cros-ec-codec.txt b/dts/Bindings/sound/google,cros-ec-codec.txt new file mode 100644 index 0000000000..1084f7f22e --- /dev/null +++ b/dts/Bindings/sound/google,cros-ec-codec.txt @@ -0,0 +1,26 @@ +* Audio codec controlled by ChromeOS EC + +Google's ChromeOS EC codec is a digital mic codec provided by the +Embedded Controller (EC) and is controlled via a host-command interface. + +An EC codec node should only be found as a sub-node of the EC node (see +Documentation/devicetree/bindings/mfd/cros-ec.txt). + +Required properties: +- compatible: Must contain "google,cros-ec-codec" +- #sound-dai-cells: Should be 1. The cell specifies number of DAIs. +- max-dmic-gain: A number for maximum gain in dB on digital microphone. + +Example: + +cros-ec@0 { + compatible = "google,cros-ec-spi"; + + ... + + cros_ec_codec: ec-codec { + compatible = "google,cros-ec-codec"; + #sound-dai-cells = <1>; + max-dmic-gain = <43>; + }; +}; |