From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kuninori Morimoto Subject: [PATCH v2 6/7] ASoC: add simple-graph-card document Date: Mon, 13 Feb 2017 04:22:54 +0000 Message-ID: <87r3327mdo.wl%kuninori.morimoto.gx@renesas.com> References: <87zihq7mja.wl%kuninori.morimoto.gx@renesas.com> Mime-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset="US-ASCII" Return-path: In-Reply-To: <87zihq7mja.wl%kuninori.morimoto.gx-zM6kxYcvzFBBDgjK7y7TUQ@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Mark Brown , Rob Herring Cc: Linux-ALSA , Simon , Linux-DT List-Id: devicetree@vger.kernel.org From: Kuninori Morimoto Signed-off-by: Kuninori Morimoto --- v1 -> v2 - no change .../bindings/sound/simple-graph-card.txt | 137 +++++++++++++++++++++ 1 file changed, 137 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..5fa7b74 --- /dev/null +++ b/Documentation/devicetree/bindings/sound/simple-graph-card.txt @@ -0,0 +1,137 @@ +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"; +- dais : list of CPU DAI port{s} + +Example: Single DAI case + + sound_card: sound { + compatible = "asoc-simple-graph-card"; + + dais = <&cpu_port>; + }; + + codec { + ... + port { + codec_endpoint: endpoint { + remote-endpoint = <&cpu_endpoint>; + }; + }; + }; + + cpu { + ... + cpu_port: port@0 { + cpu_endpoint: endpoint { + remote-endpoint = <&codec_endpoint>; + + simple-audio-card,format = "left_j"; + simple-audio-card,bitclock-master = <&cpu_endpoint>; + simple-audio-card,frame-master = <&cpu_endpoint>; + ... + }; + }; + }; + +Example: Multi DAI case + + sound_card: sound { + compatible = "asoc-simple-graph-card"; + + dais = <&cpu_port0 + &cpu_port1 + &cpu_port2>; + }; + + codec0 { + ... + port { + codec0_endpoint: endpoint { + remote-endpoint = <&cpu_endpoint0>; + }; + }; + }; + + codec1 { + ... + port { + codec1_endpoint: endpoint { + remote-endpoint = <&cpu_endpoint1>; + }; + }; + }; + + codec2 { + ... + port { + codec2_endpoint: endpoint { + remote-endpoint = <&cpu_endpoint2>; + }; + }; + }; + + cpu { + ... + ports { + cpu_port0: port@0 { + cpu_endpoint0: endpoint { + remote-endpoint = <&codec0_endpoint>; + + simple-audio-card,format = "left_j"; + simple-audio-card,bitclock-master = <&cpu_endpoint0>; + simple-audio-card,frame-master = <&cpu_endpoint0>; + ... + }; + }; + cpu_port1: port@1 { + cpu_endpoint1: endpoint { + remote-endpoint = <&codec1_endpoint>; + + simple-audio-card,format = "i2s"; + simple-audio-card,bitclock-master = <&cpu_endpoint1>; + simple-audio-card,frame-master = <&cpu_endpoint1>; + ... + }; + }; + cpu_port2: port@2 { + cpu_endpoint2: endpoint { + remote-endpoint = <&codec2_endpoint>; + + simple-audio-card,format = "i2s"; + simple-audio-card,bitclock-master = <&cpu_endpoint2>; + simple-audio-card,frame-master = <&cpu_endpoint2>; + ... + }; + }; + }; + }; + -- 1.9.1 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html