* 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>; }; };