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    Subject[PATCH 14/17] ASoC: add simple-graph-card document
    Date

    From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>

    Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
    ---
    .../bindings/sound/simple-graph-card.txt | 62 ++++++++++++++++++++++
    1 file changed, 62 insertions(+)
    create mode 100644 Documentation/devicetree/bindings/sound/simple-graph-card.txt

    diff --git a/Documentation/devicetree/bindings/sound/simple-graph-card.txt b/Documentation/devicetree/bindings/sound/simple-graph-card.txt
    new file mode 100644
    index 0000000..967cd56
    --- /dev/null
    +++ b/Documentation/devicetree/bindings/sound/simple-graph-card.txt
    @@ -0,0 +1,62 @@
    +Simple-Graph-Card:
    +
    +Simple-Graph-Card specifies audio DAI connections of SoC <-> codec.
    +It is based on common bindings for device graphs.
    +see ${LINUX}/Documentation/devicetree/bindings/graph.txt
    +
    +Basically, Simple-Graph-Card is same as Simple-Card, but using graph style.
    +see ${LINUX}/Documentation/devicetree/bindings/sound/simple-card.txt
    +
    +Below are same as Simple-Card.
    +
    +- simple-audio-card,name
    +- simple-audio-card,widgets
    +- simple-audio-card,routing
    +- simple-audio-card,mclk-fs
    +- simple-audio-card,hp-det-gpio
    +- simple-audio-card,mic-det-gpio
    +- simple-audio-card,format
    +- simple-audio-card,frame-master
    +- simple-audio-card,bitclock-master
    +- simple-audio-card,bitclock-inversion
    +- simple-audio-card,frame-inversion
    +- simple-audio-card,mclk-fs
    +- simple-audio-card,dai-tdm-slot-num
    +- simple-audio-card,dai-tdm-slot-width
    +- clocks / system-clock-frequency
    +
    +This Simple-Graph-Card should be located as CPU driver's port[s].
    +And then, CPU driver need to probe it by itself.
    +
    +Required properties:
    +
    +- compatible : "asoc-simple-graph-card";
    +
    +Example
    +
    +ak4643: codec@12 {
    + compatible = "asahi-kasei,ak4643";
    + ...
    + port {
    + ak4643_port: endpoint {
    + remote-endpoint = <&rcar_ak4643_port>;
    + clocks = <&audio_clock>;
    + };
    + };
    +};
    +
    +rcar_sound {
    + ...
    + port {
    + compatible = "asoc-simple-graph-card";
    +
    + simple-audio-card,format = "left_j";
    + simple-audio-card,bitclock-master = <&ak4643_port>;
    + simple-audio-card,frame-master = <&ak4643_port>;
    +
    + rcar_ak4643_port: endpoint {
    + remote-endpoint = <&ak4643_port>;
    + ...
    + };
    + };
    +};
    --
    1.9.1
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