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ASoC: Documentation: Add google, cros-ec-codec

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Add documentation for Chrome EC codec driver.

Signed-off-by: Cheng-Yi Chiang <cychiang@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
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Cheng-Yi Chiang 2019-01-19 19:33:31 +08:00 committed by Mark Brown
parent d7c26e63cf
commit 494a3503d6
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26
Documentation/devicetree/bindings/sound/google,cros-ec-codec.txt Normal file
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@ -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>;
};
};

7
MAINTAINERS
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@ -3687,6 +3687,13 @@ N: cros_ec
N: cros-ec
F: drivers/power/supply/cros_usbpd-charger.c
CHROMEOS EC CODEC DRIVER
M: Cheng-Yi Chiang <cychiang@chromium.org>
S: Maintained
R: Enric Balletbo i Serra <enric.balletbo@collabora.com>
R: Guenter Roeck <groeck@chromium.org>
F: Documentation/devicetree/bindings/sound/google,cros-ec-codec.txt
CIRRUS LOGIC AUDIO CODEC DRIVERS
M: Brian Austin <brian.austin@cirrus.com>
M: Paul Handrigan <Paul.Handrigan@cirrus.com>