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@xxxxxxxxxxx> > Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx> Reviewed-by: Christophe Leroy <christophe.leroy@xxxxxxxxxx> > --- > .../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@xxxxxxxxxxx> > + > +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>; > + }; > + }; > + };
