Unverified Commit f72ebecd authored by Herve Codina's avatar Herve Codina Committed by Mark Brown
Browse files

dt-bindings: sound: Add support for QMC audio 



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: default avatarHerve Codina <herve.codina@bootlin.com>
Reviewed-by: default avatarKrzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: default avatarChristophe Leroy <christophe.leroy@csgroup.eu>
Link: https://lore.kernel.org/r/20230217145645.1768659-9-herve.codina@bootlin.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent db12f7bb

Documentation/devicetree/bindings/sound/fsl,qmc-audio.yaml

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# 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>;

            };

        };

    };