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ASoC: rsnd: tidyup Document for DT binding
It has duplicated DT example code on Document. This patch tidyup these. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Kuninori Morimoto
Mark Brown
parent
c2aaaa57d4
commit
bd7ff187fa
@ -39,15 +39,7 @@ This is example of
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Playback: [MEM] -> [SRC2] -> [DVC0] -> [SSIU0/SSI0] -> [codec]
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Capture: [MEM] <- [DVC1] <- [SRC3] <- [SSIU1/SSI1] <- [codec]
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&rcar_sound {
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...
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rcar_sound,dai {
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dai0 {
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playback = <&ssi0 &src2 &dvc0>;
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capture = <&ssi1 &src3 &dvc1>;
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};
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};
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};
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see "Example: simple sound card"
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You can use below.
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${LINUX}/arch/arm/boot/dts/r8a7790.dts can be good example.
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@ -83,29 +75,8 @@ SRC can convert [xx]Hz to [yy]Hz. Then, it has below 2 modes
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** Asynchronous mode
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------------------
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You need to use "simple-scu-audio-card" sound card for it.
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example)
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sound {
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compatible = "simple-scu-audio-card";
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...
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/*
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* SRC Asynchronous mode setting
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* Playback:
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* All input data will be converted to 48kHz
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* Capture:
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* Inputed 48kHz data will be converted to
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* system specified Hz
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*/
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simple-audio-card,convert-rate = <48000>;
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...
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simple-audio-card,cpu {
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sound-dai = <&rcar_sound>;
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};
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simple-audio-card,codec {
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...
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};
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};
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You need to use "simple-scu-audio-card" or "audio-graph-scu-card" for it.
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see "Example: simple sound card for Asynchronous mode"
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------------------
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** Synchronous mode
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@ -141,26 +112,8 @@ For more detail information, see below
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${LINUX}/sound/soc/sh/rcar/ctu.c
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- comment of header
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You need to use "simple-scu-audio-card" sound card for it.
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example)
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sound {
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compatible = "simple-scu-audio-card";
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...
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/*
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* CTU setting
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* All input data will be converted to 2ch
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* as output data
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*/
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simple-audio-card,convert-channels = <2>;
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...
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simple-audio-card,cpu {
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sound-dai = <&rcar_sound>;
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};
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simple-audio-card,codec {
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...
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};
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};
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You need to use "simple-scu-audio-card" or "audio-graph-scu-card" for it.
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see "Example: simple sound card for channel convert"
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Ex) Exchange output channel
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Input -> Output
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@ -190,42 +143,13 @@ and these sounds will be merged by MIX.
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aplay -D plughw:0,0 xxxx.wav &
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aplay -D plughw:0,1 yyyy.wav
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You need to use "simple-scu-audio-card" sound card for it.
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You need to use "simple-scu-audio-card" or "audio-graph-scu-card" for it.
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Ex)
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[MEM] -> [SRC1] -> [CTU02] -+-> [MIX0] -> [DVC0] -> [SSI0]
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[MEM] -> [SRC2] -> [CTU03] -+
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sound {
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#address-cells = <1>;
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#size-cells = <0>;
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compatible = "simple-scu-audio-card";
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...
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simple-audio-card,cpu@0 {
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reg = <0>;
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sound-dai = <&rcar_sound 0>;
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};
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simple-audio-card,cpu@1 {
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reg = <1>;
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sound-dai = <&rcar_sound 1>;
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};
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simple-audio-card,codec {
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...
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};
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};
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&rcar_sound {
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...
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rcar_sound,dai {
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dai0 {
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playback = <&src1 &ctu02 &mix0 &dvc0 &ssi0>;
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};
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dai1 {
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playback = <&src2 &ctu03 &mix0 &dvc0 &ssi0>;
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};
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};
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};
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see "Example: simple sound card for MIXer"
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=============================================
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* DVC (Digital Volume and Mute Function)
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@ -304,14 +228,7 @@ This is example if SSI1 want to share WS pin with SSI0
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You can use Multi-SSI.
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This is example of SSI0/SSI1/SSI2 (= for 6ch)
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&rcar_sound {
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...
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rcar_sound,dai {
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dai0 {
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playback = <&ssi0 &ssi1 &ssi2 &src0 &dvc0>;
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};
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};
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};
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see "Example: simple sound card for Multi channel"
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** TDM-SSI
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@ -319,19 +236,7 @@ You can use TDM with SSI.
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This is example of TDM 6ch.
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Driver can automatically switches TDM <-> stereo mode in this case.
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rsnd_tdm: sound {
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compatible = "simple-audio-card";
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...
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simple-audio-card,cpu {
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/* system can use TDM 6ch */
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dai-tdm-slot-num = <6>;
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sound-dai = <&rcar_sound>;
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};
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simple-audio-card,codec {
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...
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};
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};
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see "Example: simple sound card for TDM"
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=============================================
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Required properties:
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@ -646,27 +551,104 @@ Example: simple sound card
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shared-pin;
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};
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=============================================
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Example: simple sound card for Asynchronous mode
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=============================================
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sound {
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compatible = "simple-scu-audio-card";
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...
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/*
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* SRC Asynchronous mode setting
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* Playback:
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* All input data will be converted to 48kHz
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* Capture:
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* Inputed 48kHz data will be converted to
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* system specified Hz
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*/
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simple-audio-card,convert-rate = <48000>;
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...
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simple-audio-card,cpu {
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sound-dai = <&rcar_sound>;
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};
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simple-audio-card,codec {
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...
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};
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};
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=============================================
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Example: simple sound card for channel convert
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=============================================
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sound {
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compatible = "simple-scu-audio-card";
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...
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/*
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* CTU setting
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* All input data will be converted to 2ch
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* as output data
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*/
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simple-audio-card,convert-channels = <2>;
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...
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simple-audio-card,cpu {
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sound-dai = <&rcar_sound>;
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};
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simple-audio-card,codec {
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...
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};
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};
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=============================================
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Example: simple sound card for MIXer
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=============================================
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sound {
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compatible = "simple-scu-audio-card";
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...
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simple-audio-card,cpu@0 {
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sound-dai = <&rcar_sound 0>;
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};
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simple-audio-card,cpu@1 {
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sound-dai = <&rcar_sound 1>;
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};
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simple-audio-card,codec {
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...
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};
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};
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&rcar_sound {
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...
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rcar_sound,dai {
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dai0 {
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playback = <&src1 &ctu02 &mix0 &dvc0 &ssi0>;
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};
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dai1 {
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playback = <&src2 &ctu03 &mix0 &dvc0 &ssi0>;
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};
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};
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};
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=============================================
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Example: simple sound card for TDM
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=============================================
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rsnd_tdm: sound {
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compatible = "simple-audio-card";
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rsnd_tdm: sound {
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compatible = "simple-audio-card";
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simple-audio-card,format = "left_j";
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simple-audio-card,bitclock-master = <&sndcodec>;
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simple-audio-card,frame-master = <&sndcodec>;
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simple-audio-card,format = "left_j";
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simple-audio-card,bitclock-master = <&sndcodec>;
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simple-audio-card,frame-master = <&sndcodec>;
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sndcpu: simple-audio-card,cpu {
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sound-dai = <&rcar_sound>;
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dai-tdm-slot-num = <6>;
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};
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sndcodec: simple-audio-card,codec {
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sound-dai = <&xxx>;
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};
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sndcpu: simple-audio-card,cpu {
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sound-dai = <&rcar_sound>;
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dai-tdm-slot-num = <6>;
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};
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sndcodec: simple-audio-card,codec {
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sound-dai = <&xxx>;
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};
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};
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=============================================
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Example: simple sound card for Multi channel
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=============================================
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