Re: [PATCH v6 08/10] dt-bindings: sound: Add support for QMC audio

Le 17/02/2023 à 15:56, Herve Codina a écrit :

The QMC (QUICC mutichannel controller) is a controller present in some PowerQUICC SoC such as MPC885. The QMC audio is an ASoC component that uses the QMC controller to transfer the audio data.

Signed-off-by: Herve Codina herve.codina@bootlin.com Reviewed-by: Krzysztof Kozlowski krzysztof.kozlowski@linaro.org

Reviewed-by: Christophe Leroy christophe.leroy@csgroup.eu

---

.../bindings/sound/fsl,qmc-audio.yaml | 117 ++++++++++++++++++ 1 file changed, 117 insertions(+) create mode 100644 Documentation/devicetree/bindings/sound/fsl,qmc-audio.yaml

diff --git a/Documentation/devicetree/bindings/sound/fsl,qmc-audio.yaml b/Documentation/devicetree/bindings/sound/fsl,qmc-audio.yaml new file mode 100644 index 000000000000..ff5cd9241941 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/fsl,qmc-audio.yaml @@ -0,0 +1,117 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/sound/fsl,qmc-audio.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml#

+title: QMC audio

+maintainers:

• • Herve Codina herve.codina@bootlin.com

+description: |

• The QMC audio is an ASoC component which uses QMC (QUICC Multichannel
• Controller) channels to transfer the audio data.
• It provides as many DAI as the number of QMC channel used.

+allOf:

• • $ref: dai-common.yaml#

+properties:

• compatible:
• const: fsl,qmc-audio
• '#address-cells':
• const: 1
• '#size-cells':
• const: 0
• '#sound-dai-cells':
• const: 1

+patternProperties:

• '^dai@([0-9]|[1-5][0-9]|6[0-3])$':
• description:

•  A DAI managed by this controller
  

• type: object
• properties:

•  reg:
  

•    minimum: 0
  

•    maximum: 63
  

•    description:
  

•      The DAI number
  

•  fsl,qmc-chan:
  

•    $ref: /schemas/types.yaml#/definitions/phandle-array
  

•    items:
  

•      - items:
  

•          - description: phandle to QMC node
  

•          - description: Channel number
  

•    description:
  

•      Should be a phandle/number pair. The phandle to QMC node and the QMC
  

•      channel to use for this DAI.
  

• required:

•  - reg
  

•  - fsl,qmc-chan
  

+required:

• • compatible
• • '#address-cells'
• • '#size-cells'
• • '#sound-dai-cells'

+additionalProperties: false

+examples:

• • |
• audio_controller: audio-controller {

•    compatible = "fsl,qmc-audio";
  

•    #address-cells = <1>;
  

•    #size-cells = <0>;
  

•    #sound-dai-cells = <1>;
  

•    dai@16 {
  

•        reg = <16>;
  

•        fsl,qmc-chan = <&qmc 16>;
  

•    };
  

•    dai@17 {
  

•        reg = <17>;
  

•        fsl,qmc-chan = <&qmc 17>;
  

•    };
  

• };
• sound {

•    compatible = "simple-audio-card";
  

•    #address-cells = <1>;
  

•    #size-cells = <0>;
  

•    simple-audio-card,dai-link@0 {
  

•        reg = <0>;
  

•        format = "dsp_b";
  

•        cpu {
  

•            sound-dai = <&audio_controller 16>;
  

•        };
  

•        codec {
  

•            sound-dai = <&codec1>;
  

•            dai-tdm-slot-num = <4>;
  

•            dai-tdm-slot-width = <8>;
  

•            /* TS 3, 5, 7, 9 */
  

•            dai-tdm-slot-tx-mask = <0 0 0 1 0 1 0 1 0 1>;
  

•            dai-tdm-slot-rx-mask = <0 0 0 1 0 1 0 1 0 1>;
  

•        };
  

•    };
  

•    simple-audio-card,dai-link@1 {
  

•        reg = <1>;
  

•        format = "dsp_b";
  

•        cpu {
  

•            sound-dai = <&audio_controller 17>;
  

•        };
  

•        codec {
  

•            sound-dai = <&codec2>;
  

•            dai-tdm-slot-num = <4>;
  

•            dai-tdm-slot-width = <8>;
  

•            /* TS 2, 4, 6, 8 */
  

•            dai-tdm-slot-tx-mask = <0 0 1 0 1 0 1 0 1>;
  

•            dai-tdm-slot-rx-mask = <0 0 1 0 1 0 1 0 1>;
  

•        };
  

•    };
  

• };