Commit bd7ff187 authored by Kuninori Morimoto's avatar Kuninori Morimoto Committed by Mark Brown

ASoC: rsnd: tidyup Document for DT binding

It has duplicated DT example code on Document.
This patch tidyup these.
Signed-off-by: default avatarKuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent c2aaaa57
......@@ -39,15 +39,7 @@ This is example of
Playback: [MEM] -> [SRC2] -> [DVC0] -> [SSIU0/SSI0] -> [codec]
Capture: [MEM] <- [DVC1] <- [SRC3] <- [SSIU1/SSI1] <- [codec]
&rcar_sound {
...
rcar_sound,dai {
dai0 {
playback = <&ssi0 &src2 &dvc0>;
capture = <&ssi1 &src3 &dvc1>;
};
};
};
see "Example: simple sound card"
You can use below.
${LINUX}/arch/arm/boot/dts/r8a7790.dts can be good example.
......@@ -83,29 +75,8 @@ SRC can convert [xx]Hz to [yy]Hz. Then, it has below 2 modes
** Asynchronous mode
------------------
You need to use "simple-scu-audio-card" sound card for it.
example)
sound {
compatible = "simple-scu-audio-card";
...
/*
* SRC Asynchronous mode setting
* Playback:
* All input data will be converted to 48kHz
* Capture:
* Inputed 48kHz data will be converted to
* system specified Hz
*/
simple-audio-card,convert-rate = <48000>;
...
simple-audio-card,cpu {
sound-dai = <&rcar_sound>;
};
simple-audio-card,codec {
...
};
};
You need to use "simple-scu-audio-card" or "audio-graph-scu-card" for it.
see "Example: simple sound card for Asynchronous mode"
------------------
** Synchronous mode
......@@ -141,26 +112,8 @@ For more detail information, see below
${LINUX}/sound/soc/sh/rcar/ctu.c
- comment of header
You need to use "simple-scu-audio-card" sound card for it.
example)
sound {
compatible = "simple-scu-audio-card";
...
/*
* CTU setting
* All input data will be converted to 2ch
* as output data
*/
simple-audio-card,convert-channels = <2>;
...
simple-audio-card,cpu {
sound-dai = <&rcar_sound>;
};
simple-audio-card,codec {
...
};
};
You need to use "simple-scu-audio-card" or "audio-graph-scu-card" for it.
see "Example: simple sound card for channel convert"
Ex) Exchange output channel
Input -> Output
......@@ -190,42 +143,13 @@ and these sounds will be merged by MIX.
aplay -D plughw:0,0 xxxx.wav &
aplay -D plughw:0,1 yyyy.wav
You need to use "simple-scu-audio-card" sound card for it.
You need to use "simple-scu-audio-card" or "audio-graph-scu-card" for it.
Ex)
[MEM] -> [SRC1] -> [CTU02] -+-> [MIX0] -> [DVC0] -> [SSI0]
|
[MEM] -> [SRC2] -> [CTU03] -+
sound {
#address-cells = <1>;
#size-cells = <0>;
compatible = "simple-scu-audio-card";
...
simple-audio-card,cpu@0 {
reg = <0>;
sound-dai = <&rcar_sound 0>;
};
simple-audio-card,cpu@1 {
reg = <1>;
sound-dai = <&rcar_sound 1>;
};
simple-audio-card,codec {
...
};
};
&rcar_sound {
...
rcar_sound,dai {
dai0 {
playback = <&src1 &ctu02 &mix0 &dvc0 &ssi0>;
};
dai1 {
playback = <&src2 &ctu03 &mix0 &dvc0 &ssi0>;
};
};
};
see "Example: simple sound card for MIXer"
=============================================
* DVC (Digital Volume and Mute Function)
......@@ -304,14 +228,7 @@ This is example if SSI1 want to share WS pin with SSI0
You can use Multi-SSI.
This is example of SSI0/SSI1/SSI2 (= for 6ch)
&rcar_sound {
...
rcar_sound,dai {
dai0 {
playback = <&ssi0 &ssi1 &ssi2 &src0 &dvc0>;
};
};
};
see "Example: simple sound card for Multi channel"
** TDM-SSI
......@@ -319,19 +236,7 @@ You can use TDM with SSI.
This is example of TDM 6ch.
Driver can automatically switches TDM <-> stereo mode in this case.
rsnd_tdm: sound {
compatible = "simple-audio-card";
...
simple-audio-card,cpu {
/* system can use TDM 6ch */
dai-tdm-slot-num = <6>;
sound-dai = <&rcar_sound>;
};
simple-audio-card,codec {
...
};
};
see "Example: simple sound card for TDM"
=============================================
Required properties:
......@@ -646,11 +551,88 @@ Example: simple sound card
shared-pin;
};
=============================================
Example: simple sound card for Asynchronous mode
=============================================
sound {
compatible = "simple-scu-audio-card";
...
/*
* SRC Asynchronous mode setting
* Playback:
* All input data will be converted to 48kHz
* Capture:
* Inputed 48kHz data will be converted to
* system specified Hz
*/
simple-audio-card,convert-rate = <48000>;
...
simple-audio-card,cpu {
sound-dai = <&rcar_sound>;
};
simple-audio-card,codec {
...
};
};
=============================================
Example: simple sound card for channel convert
=============================================
sound {
compatible = "simple-scu-audio-card";
...
/*
* CTU setting
* All input data will be converted to 2ch
* as output data
*/
simple-audio-card,convert-channels = <2>;
...
simple-audio-card,cpu {
sound-dai = <&rcar_sound>;
};
simple-audio-card,codec {
...
};
};
=============================================
Example: simple sound card for MIXer
=============================================
sound {
compatible = "simple-scu-audio-card";
...
simple-audio-card,cpu@0 {
sound-dai = <&rcar_sound 0>;
};
simple-audio-card,cpu@1 {
sound-dai = <&rcar_sound 1>;
};
simple-audio-card,codec {
...
};
};
&rcar_sound {
...
rcar_sound,dai {
dai0 {
playback = <&src1 &ctu02 &mix0 &dvc0 &ssi0>;
};
dai1 {
playback = <&src2 &ctu03 &mix0 &dvc0 &ssi0>;
};
};
};
=============================================
Example: simple sound card for TDM
=============================================
rsnd_tdm: sound {
rsnd_tdm: sound {
compatible = "simple-audio-card";
simple-audio-card,format = "left_j";
......@@ -665,7 +647,7 @@ Example: simple sound card for TDM
sndcodec: simple-audio-card,codec {
sound-dai = <&xxx>;
};
};
};
=============================================
Example: simple sound card for Multi channel
......
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