Hi Rob, Mark
I created OF-graph base simple sound card.
I want to post this patch-set, but it depends many things.
Thus, before posting patch-set, I would like to know
OF-graph sound DT binding was OK or not.
Can you give me comments ?
---
.../bindings/sound/simple-graph-card.txt | 140 +++++++++++++++++++++
1 file changed, 140 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..4b29284
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/simple-graph-card.txt
@@ -0,0 +1,140 @@
+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 property is same as Simple-Card.
+see ${LINUX}/Documentation/devicetree/bindings/sound/simple-card.txt
+
+Below are same as Simple-Card.
+
+- simple-audio-card,name
+- 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,dai-tdm-slot-num
+- simple-audio-card,dai-tdm-slot-width
+- clocks / system-clock-frequency
+
+These should be implemented
+- 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
+
+Required properties:
+
+- compatible : "asoc-simple-graph-card";
+
+Optional properties:
+
+- dais : Sound DAI phandle list if Card has
+ multi DAI. see Example
+
+Each ports
+
+- port@0 : CPU setting
+- port@1 : Codec setting
+
+Example: Single DAI case
+
+ sound_card: sound {
+ compatible = "asoc-simple-graph-card";
+
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 {
+ sound0_in: endpoint {
+ remote-endpoint = <&rsnd_port0>;
+
+ simple-audio-card,format = "left_j";
+ simple-audio-card,bitclock-master = <&rsnd_port0>;
+ simple-audio-card,frame-master = <&rsnd_port0>;
+ };
+ };
+ port@1 {
+ sound0_out: endpoint {
+ remote-endpoint = <&ak4613_port>;
+ };
+ };
+ };
+ };
+
+
+Example: Multi DAI case
+
+ sound_dai0: sound_dai@0 {
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 {
+ sound0_in: endpoint {
+ remote-endpoint = <&rsnd_port0>;
+
+ simple-audio-card,format = "left_j";
+ simple-audio-card,bitclock-master = <&rsnd_port0>;
+ simple-audio-card,frame-master = <&rsnd_port0>;
+ };
+ };
+ port@1 {
+ sound0_out: endpoint {
+ remote-endpoint = <&ak4613_port>;
+ };
+ };
+ };
+ };
+
+ sound_dai1: sound_dai@1 {
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 {
+ sound1_in: endpoint {
+ remote-endpoint = <&rsnd_port1>;
+
+ simple-audio-card,format = "i2s";
+ simple-audio-card,bitclock-master = <&rsnd_port1>;
+ simple-audio-card,frame-master = <&rsnd_port1>;
+ };
+ };
+ port@1 {
+ sound1_out: endpoint {
+ remote-endpoint = <&rcar_dw_hdmi0_snd_in>;
+ };
+ };
+ };
+ };
+
+ sound_dai2: sound_dai@2 {
+ ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ port@0 {
+ sound2_in: endpoint {
+ remote-endpoint = <&rsnd_port2>;
+
+ simple-audio-card,format = "i2s";
+ simple-audio-card,bitclock-master = <&rsnd_port2>;
+ simple-audio-card,frame-master = <&rsnd_port2>;
+ };
+ };
+ port@1 {
+ sound2_out: endpoint {
+ remote-endpoint = <&rcar_dw_hdmi1_snd_in>;
+ };
+ };
+ };
+ };
+
+ rsnd_ak4613: sound {
+ compatible = "asoc-simple-graph-card";
+
+ dais = <&sound_dai0
+ &sound_dai1
+ &sound_dai2>;
+ };
--
1.9.1
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