Unverified Commit abcb9a1f authored by Shengjiu Wang's avatar Shengjiu Wang Committed by Mark Brown
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ASoC: dt-bindings: fsl,sai: Document audio graph port 



This device can be used in conjunction with audio-graph-card to provide
an endpoint for binding with the other side of the audio link.

Signed-off-by: default avatarShengjiu Wang <shengjiu.wang@nxp.com>
Reviewed-by: default avatarRob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20250226100508.2352568-2-shengjiu.wang@nxp.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 579a2018

Documentation/devicetree/bindings/sound/fsl,sai.yaml

+51 −0
Original line number Diff line number Diff line
@@ -93,6 +93,24 @@ properties: 
    items:

      - description: receive and transmit interrupt



  ports:

    $ref: /schemas/graph.yaml#/properties/ports

    properties:

      port@0:

        $ref: audio-graph-port.yaml#

        unevaluatedProperties: false

        description: port for TX and RX



      port@1:

        $ref: audio-graph-port.yaml#

        unevaluatedProperties: false

        description: port for TX only



      port@2:

        $ref: audio-graph-port.yaml#

        unevaluatedProperties: false

        description: port for RX only



  big-endian:

    description: |

      required if all the SAI registers are big-endian rather than little-endian.
@@ -204,4 +222,37 @@ examples: 
        dma-names = "rx", "tx";

        fsl,dataline = <1 0xff 0xff 2 0xff 0x11>;

        #sound-dai-cells = <0>;



        ports {

            #address-cells = <1>;

            #size-cells = <0>;



            port@1 {

                reg = <1>;

                playback-only;



                sai1_endpoint0: endpoint {

                   dai-tdm-slot-num = <8>;

                   dai-tdm-slot-width = <32>;

                   dai-tdm-slot-width-map = <32 8 32>;

                   dai-format = "dsp_a";

                   bitclock-master;

                   frame-master;

                   remote-endpoint = <&mcodec01_ep>;

                };

            };



            port@2 {

                reg = <2>;

                capture-only;



                sai1_endpoint1: endpoint {

                    dai-tdm-slot-num = <8>;

                    dai-tdm-slot-width = <32>;

                    dai-tdm-slot-width-map = <32 8 32>;

                    dai-format = "dsp_a";

                    remote-endpoint = <&fe02_ep>;

                };

            };

        };

    };