cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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google,cros-ec-codec.yaml (2022B)

      1# SPDX-License-Identifier: GPL-2.0-only
      2%YAML 1.2
      3---
      4$id: http://devicetree.org/schemas/sound/google,cros-ec-codec.yaml#
      5$schema: http://devicetree.org/meta-schemas/core.yaml#
      6
      7title: Audio codec controlled by ChromeOS EC
      8
      9maintainers:
     10  - Cheng-Yi Chiang <cychiang@chromium.org>
     11  - Tzung-Bi Shih <tzungbi@google.com>
     12
     13description: |
     14  Google's ChromeOS EC codec is a digital mic codec provided by the
     15  Embedded Controller (EC) and is controlled via a host-command
     16  interface.  An EC codec node should only be found inside the "codecs"
     17  subnode of a cros-ec node.
     18  (see Documentation/devicetree/bindings/mfd/google,cros-ec.yaml).
     19
     20properties:
     21  compatible:
     22    const: google,cros-ec-codec
     23
     24  "#sound-dai-cells":
     25    const: 1
     26
     27  reg:
     28    items:
     29      - description: |
     30          Physical base address and length of shared memory region from EC.
     31          It contains 3 unsigned 32-bit integer. The first 2 integers
     32          combine to become an unsigned 64-bit physical address.
     33          The last one integer is the length of the shared memory.
     34
     35  memory-region:
     36    maxItems: 1
     37    description: |
     38      Shared memory region to EC.  A "shared-dma-pool".
     39      See ../reserved-memory/reserved-memory.txt for details.
     40
     41required:
     42  - compatible
     43  - '#sound-dai-cells'
     44
     45additionalProperties: false
     46
     47examples:
     48  - |
     49    reserved_mem: reserved-mem@52800000 {
     50        compatible = "shared-dma-pool";
     51        reg = <0x52800000 0x100000>;
     52        no-map;
     53    };
     54    spi {
     55        #address-cells = <1>;
     56        #size-cells = <0>;
     57        cros-ec@0 {
     58            compatible = "google,cros-ec-spi";
     59            reg = <0>;
     60
     61            codecs {
     62                #address-cells = <2>;
     63                #size-cells = <1>;
     64
     65                cros_ec_codec: ec-codec@10500000 {
     66                    compatible = "google,cros-ec-codec";
     67                    #sound-dai-cells = <1>;
     68                    reg = <0x0 0x10500000 0x80000>;
     69                    memory-region = <&reserved_mem>;
     70                };
     71
     72            };
     73        };
     74    };