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+# SPDX-License-Identifier: GPL-2.0-only
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/google,cros-ec-codec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Audio codec controlled by ChromeOS EC
+
+maintainers:
+ - Cheng-Yi Chiang <cychiang@chromium.org>
+
+description: |
+ 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).
+
+properties:
+ compatible:
+ const: google,cros-ec-codec
+
+ "#sound-dai-cells":
+ const: 1
+
+ reg:
+ items:
+ - description: |
+ Physical base address and length of shared memory region from EC.
+ It contains 3 unsigned 32-bit integer. The first 2 integers
+ combine to become an unsigned 64-bit physical address.
+ The last one integer is the length of the shared memory.
+
+ memory-region:
+ $ref: '/schemas/types.yaml#/definitions/phandle'
+ description: |
+ Shared memory region to EC. A "shared-dma-pool".
+ See ../reserved-memory/reserved-memory.txt for details.
+
+required:
+ - compatible
+ - '#sound-dai-cells'
+
+additionalProperties: false
+
+examples:
+ - |
+ reserved_mem: reserved-mem@52800000 {
+ compatible = "shared-dma-pool";
+ reg = <0x52800000 0x100000>;
+ no-map;
+ };
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ cros-ec@0 {
+ compatible = "google,cros-ec-spi";
+ #address-cells = <2>;
+ #size-cells = <1>;
+ reg = <0>;
+ cros_ec_codec: ec-codec@10500000 {
+ compatible = "google,cros-ec-codec";
+ #sound-dai-cells = <1>;
+ reg = <0x0 0x10500000 0x80000>;
+ memory-region = <&reserved_mem>;
+ };
+ };
+ };