From 494a3503d684b6fc497623bc01e3e16f8def0499 Mon Sep 17 00:00:00 2001
From: Cheng-Yi Chiang <cychiang@chromium.org>
Date: Sat, 19 Jan 2019 19:33:31 +0800
Subject: [PATCH] ASoC: Documentation: Add google, cros-ec-codec
Add documentation for Chrome EC codec driver.
Signed-off-by: Cheng-Yi Chiang <cychiang@chromium.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
---
.../bindings/sound/google,cros-ec-codec.txt | 26 +++++++++++++++++++
MAINTAINERS | 7 +++++
2 files changed, 33 insertions(+)
create mode 100644 Documentation/devicetree/bindings/sound/google,cros-ec-codec.txt
diff --git a/Documentation/devicetree/bindings/sound/google,cros-ec-codec.txt b/Documentation/devicetree/bindings/sound/google,cros-ec-codec.txt
new file mode 100644
index 0000000000000..1084f7f22eeaf
--- /dev/null
+++ b/Documentation/devicetree/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>;
+ };
+};
diff --git a/MAINTAINERS b/MAINTAINERS
index 9f64f8d3740ed..3bcc5465e4602 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -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>
--
GitLab