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Message-ID: <87sgjfqc8v.wl-kuninori.morimoto.gx@renesas.com>
Date: 13 Feb 2020 14:37:13 +0900
From: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
To: Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>
Cc: alsa-devel@...a-project.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH] ASoC: dt-bindings: simple-card: switch to yaml base Documentation
From: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
This patch switches from .txt base to .yaml base Document.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
---
.../devicetree/bindings/sound/simple-card.txt | 351 --------------
.../bindings/sound/simple-card.yaml | 459 ++++++++++++++++++
2 files changed, 459 insertions(+), 351 deletions(-)
delete mode 100644 Documentation/devicetree/bindings/sound/simple-card.txt
create mode 100644 Documentation/devicetree/bindings/sound/simple-card.yaml
diff --git a/Documentation/devicetree/bindings/sound/simple-card.txt b/Documentation/devicetree/bindings/sound/simple-card.txt
deleted file mode 100644
index 79954cd6e37b..000000000000
--- a/Documentation/devicetree/bindings/sound/simple-card.txt
+++ /dev/null
@@ -1,351 +0,0 @@
-Simple-Card:
-
-Simple-Card specifies audio DAI connections of SoC <-> codec.
-
-Required properties:
-
-- compatible : "simple-audio-card"
-
-Optional properties:
-
-- simple-audio-card,name : User specified audio sound card name, one string
- property.
-- simple-audio-card,widgets : Please refer to widgets.txt.
-- simple-audio-card,routing : A list of the connections between audio components.
- Each entry is a pair of strings, the first being the
- connection's sink, the second being the connection's
- source.
-- simple-audio-card,mclk-fs : Multiplication factor between stream rate and codec
- mclk. When defined, mclk-fs property defined in
- dai-link sub nodes are ignored.
-- simple-audio-card,hp-det-gpio : Reference to GPIO that signals when
- headphones are attached.
-- simple-audio-card,mic-det-gpio : Reference to GPIO that signals when
- a microphone is attached.
-- simple-audio-card,aux-devs : List of phandles pointing to auxiliary devices, such
- as amplifiers, to be added to the sound card.
-- simple-audio-card,pin-switches : List of strings containing the widget names for
- which pin switches must be created.
-
-Optional subnodes:
-
-- simple-audio-card,dai-link : Container for dai-link level
- properties and the CPU and CODEC
- sub-nodes. This container may be
- omitted when the card has only one
- DAI link. See the examples and the
- section below.
-
-Dai-link subnode properties and subnodes:
-
-If dai-link subnode is omitted and the subnode properties are directly
-under "sound"-node the subnode property and subnode names have to be
-prefixed with "simple-audio-card,"-prefix.
-
-Required dai-link subnodes:
-
-- cpu : CPU sub-node
-- codec : CODEC sub-node
-
-Optional dai-link subnode properties:
-
-- format : CPU/CODEC common audio format.
- "i2s", "right_j", "left_j" , "dsp_a"
- "dsp_b", "ac97", "pdm", "msb", "lsb"
-- frame-master : Indicates dai-link frame master.
- phandle to a cpu or codec subnode.
-- bitclock-master : Indicates dai-link bit clock master.
- phandle to a cpu or codec subnode.
-- bitclock-inversion : bool property. Add this if the
- dai-link uses bit clock inversion.
-- frame-inversion : bool property. Add this if the
- dai-link uses frame clock inversion.
-- mclk-fs : Multiplication factor between stream
- rate and codec mclk, applied only for
- the dai-link.
-
-For backward compatibility the frame-master and bitclock-master
-properties can be used as booleans in codec subnode to indicate if the
-codec is the dai-link frame or bit clock master. In this case there
-should be no dai-link node, the same properties should not be present
-at sound-node level, and the bitclock-inversion and frame-inversion
-properties should also be placed in the codec node if needed.
-
-Required CPU/CODEC subnodes properties:
-
-- sound-dai : phandle and port of CPU/CODEC
-
-Optional CPU/CODEC subnodes properties:
-
-- dai-tdm-slot-num : Please refer to tdm-slot.txt.
-- dai-tdm-slot-width : Please refer to tdm-slot.txt.
-- clocks / system-clock-frequency : specify subnode's clock if needed.
- it can be specified via "clocks" if system has
- clock node (= common clock), or "system-clock-frequency"
- (if system doens't support common clock)
- If a clock is specified, it is
- enabled with clk_prepare_enable()
- in dai startup() and disabled with
- clk_disable_unprepare() in dai
- shutdown().
- If a clock is specified and a
- multiplication factor is given with
- mclk-fs, the clock will be set to the
- calculated mclk frequency when the
- stream starts.
-- system-clock-direction-out : specifies clock direction as 'out' on
- initialization. It is useful for some aCPUs with
- fixed clocks.
-
--------------------------------------------
-Example 1 - single DAI link:
--------------------------------------------
-
-sound {
- compatible = "simple-audio-card";
- simple-audio-card,name = "VF610-Tower-Sound-Card";
- simple-audio-card,format = "left_j";
- simple-audio-card,bitclock-master = <&dailink0_master>;
- simple-audio-card,frame-master = <&dailink0_master>;
- simple-audio-card,widgets =
- "Microphone", "Microphone Jack",
- "Headphone", "Headphone Jack",
- "Speaker", "External Speaker";
- simple-audio-card,routing =
- "MIC_IN", "Microphone Jack",
- "Headphone Jack", "HP_OUT",
- "External Speaker", "LINE_OUT";
-
- simple-audio-card,cpu {
- sound-dai = <&sh_fsi2 0>;
- };
-
- dailink0_master: simple-audio-card,codec {
- sound-dai = <&ak4648>;
- clocks = <&osc>;
- };
-};
-
-&i2c0 {
- ak4648: ak4648@12 {
- #sound-dai-cells = <0>;
- compatible = "asahi-kasei,ak4648";
- reg = <0x12>;
- };
-};
-
-sh_fsi2: sh_fsi2@...30000 {
- #sound-dai-cells = <1>;
- compatible = "renesas,sh_fsi2";
- reg = <0xec230000 0x400>;
- interrupt-parent = <&gic>;
- interrupts = <0 146 0x4>;
-};
-
--------------------------------------------
-Example 2 - many DAI links:
--------------------------------------------
-
-sound {
- compatible = "simple-audio-card";
- simple-audio-card,name = "Cubox Audio";
-
- simple-audio-card,dai-link@0 { /* I2S - HDMI */
- reg = <0>;
- format = "i2s";
- cpu {
- sound-dai = <&audio1 0>;
- };
- codec {
- sound-dai = <&tda998x 0>;
- };
- };
-
- simple-audio-card,dai-link@1 { /* S/PDIF - HDMI */
- reg = <1>;
- cpu {
- sound-dai = <&audio1 1>;
- };
- codec {
- sound-dai = <&tda998x 1>;
- };
- };
-
- simple-audio-card,dai-link@2 { /* S/PDIF - S/PDIF */
- reg = <2>;
- cpu {
- sound-dai = <&audio1 1>;
- };
- codec {
- sound-dai = <&spdif_codec>;
- };
- };
-};
-
--------------------------------------------
-Example 3 - route audio from IMX6 SSI2 through TLV320DAC3100 codec
-through TPA6130A2 amplifier to headphones:
--------------------------------------------
-
-&i2c0 {
- codec: tlv320dac3100@18 {
- compatible = "ti,tlv320dac3100";
- ...
- }
-
- amp: tpa6130a2@60 {
- compatible = "ti,tpa6130a2";
- ...
- }
-}
-
-sound {
- compatible = "simple-audio-card";
- ...
- simple-audio-card,widgets =
- "Headphone", "Headphone Jack";
- simple-audio-card,routing =
- "Headphone Jack", "HPLEFT",
- "Headphone Jack", "HPRIGHT",
- "LEFTIN", "HPL",
- "RIGHTIN", "HPR";
- simple-audio-card,aux-devs = <&>;
- simple-audio-card,cpu {
- sound-dai = <&ssi2>;
- };
- simple-audio-card,codec {
- sound-dai = <&codec>;
- clocks = ...
- };
-};
-
--------------------------------------------
-Example 4. Sampling Rate Conversion
--------------------------------------------
-
-sound {
- compatible = "simple-audio-card";
-
- simple-audio-card,name = "rsnd-ak4643";
- simple-audio-card,format = "left_j";
- simple-audio-card,bitclock-master = <&sndcodec>;
- simple-audio-card,frame-master = <&sndcodec>;
-
- simple-audio-card,convert-rate = <48000>;
-
- simple-audio-card,prefix = "ak4642";
- simple-audio-card,routing = "ak4642 Playback", "DAI0 Playback",
- "DAI0 Capture", "ak4642 Capture";
-
- sndcpu: simple-audio-card,cpu {
- sound-dai = <&rcar_sound>;
- };
-
- sndcodec: simple-audio-card,codec {
- sound-dai = <&ak4643>;
- system-clock-frequency = <11289600>;
- };
-};
-
--------------------------------------------
-Example 5. 2 CPU 1 Codec (Mixing)
--------------------------------------------
-sound {
- compatible = "simple-audio-card";
-
- simple-audio-card,name = "rsnd-ak4643";
- simple-audio-card,format = "left_j";
- simple-audio-card,bitclock-master = <&dpcmcpu>;
- simple-audio-card,frame-master = <&dpcmcpu>;
-
- simple-audio-card,routing = "ak4642 Playback", "DAI0 Playback",
- "ak4642 Playback", "DAI1 Playback";
-
- dpcmcpu: cpu@0 {
- sound-dai = <&rcar_sound 0>;
- };
-
- cpu@1 {
- sound-dai = <&rcar_sound 1>;
- };
-
- codec {
- prefix = "ak4642";
- sound-dai = <&ak4643>;
- clocks = <&audio_clock>;
- };
-};
-
--------------------------------------------
-Example 6 - many DAI links with DPCM:
--------------------------------------------
-
-CPU0 ------ ak4613
-CPU1 ------ PCM3168A-p /* DPCM 1ch/2ch */
-CPU2 --/ /* DPCM 3ch/4ch */
-CPU3 --/ /* DPCM 5ch/6ch */
-CPU4 --/ /* DPCM 7ch/8ch */
-CPU5 ------ PCM3168A-c
-
-sound {
- compatible = "simple-audio-card";
-
- simple-audio-card,routing =
- "pcm3168a Playback", "DAI1 Playback",
- "pcm3168a Playback", "DAI2 Playback",
- "pcm3168a Playback", "DAI3 Playback",
- "pcm3168a Playback", "DAI4 Playback";
-
- simple-audio-card,dai-link@0 {
- format = "left_j";
- bitclock-master = <&sndcpu0>;
- frame-master = <&sndcpu0>;
-
- sndcpu0: cpu {
- sound-dai = <&rcar_sound 0>;
- };
- codec {
- sound-dai = <&ak4613>;
- };
- };
- simple-audio-card,dai-link@1 {
- format = "i2s";
- bitclock-master = <&sndcpu1>;
- frame-master = <&sndcpu1>;
-
- convert-channels = <8>; /* TDM Split */
-
- sndcpu1: cpu@0 {
- sound-dai = <&rcar_sound 1>;
- };
- cpu@1 {
- sound-dai = <&rcar_sound 2>;
- };
- cpu@2 {
- sound-dai = <&rcar_sound 3>;
- };
- cpu@3 {
- sound-dai = <&rcar_sound 4>;
- };
- codec {
- mclk-fs = <512>;
- prefix = "pcm3168a";
- dai-tdm-slot-num = <8>;
- sound-dai = <&pcm3168a 0>;
- };
- };
- simple-audio-card,dai-link@2 {
- format = "i2s";
- bitclock-master = <&sndcpu2>;
- frame-master = <&sndcpu2>;
-
- sndcpu2: cpu {
- sound-dai = <&rcar_sound 5>;
- };
- codec {
- mclk-fs = <512>;
- prefix = "pcm3168a";
- sound-dai = <&pcm3168a 1>;
- };
- };
-};
diff --git a/Documentation/devicetree/bindings/sound/simple-card.yaml b/Documentation/devicetree/bindings/sound/simple-card.yaml
new file mode 100644
index 000000000000..7c9ced323787
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/simple-card.yaml
@@ -0,0 +1,459 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/simple-card.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Simple Audio Card Driver Device Tree Bindings
+
+maintainers:
+ - Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
+
+definitions:
+
+ frame-master:
+ description: Indicates dai-link frame master.
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+
+ bitclock-master:
+ description: Indicates dai-link bit clock master
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+
+ frame-inversion:
+ description: dai-link uses frame clock inversion
+ $ref: /schemas/types.yaml#/definitions/flag
+
+ bitclock-inversion:
+ description: dai-link uses bit clock inversion
+ $ref: /schemas/types.yaml#/definitions/flag
+
+ mclk-fs:
+ description: |
+ Multiplication factor between stream rate and codec mclk.
+ When defined, mclk-fs property defined in dai-link sub nodes are ignored.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ aux-devs:
+ description: |
+ List of phandles pointing to auxiliary devices, such
+ as amplifiers, to be added to the sound card.
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+
+ convert-rate:
+ description: CPU to Codec rate convert.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ convert-channels:
+ description: CPU to Codec rate channels.
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ prefix:
+ description: "device name prefix"
+ $ref: /schemas/types.yaml#/definitions/string
+
+ pin-switches:
+ description: the widget names for which pin switches must be created.
+ $ref: /schemas/types.yaml#/definitions/string-array
+
+ format:
+ description: audio format.
+ items:
+ enum:
+ - i2s
+ - right_j
+ - left_j
+ - dsp_a
+ - dsp_b
+ - ac97
+ - pdm
+ - msb
+ - lsb
+
+ dai:
+ type: object
+ properties:
+ sound-dai:
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+
+ # common properties
+ mclk-fs:
+ $ref: "#/definitions/mclk-fs"
+ prefix:
+ $ref: "#/definitions/prefix"
+ frame-inversion:
+ $ref: "#/definitions/frame-inversion"
+ bitclock-inversion:
+ $ref: "#/definitions/bitclock-inversion"
+ frame-master:
+ $ref: /schemas/types.yaml#/definitions/flag
+ bitclock-master:
+ $ref: /schemas/types.yaml#/definitions/flag
+
+ dai-tdm-slot-num:
+ description: see tdm-slot.txt.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ dai-tdm-slot-width:
+ description: see tdm-slot.txt.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ clocks:
+ description: |
+ If a clock is specified and a multiplication factor is given with
+ mclk-fs, the clock will be set to the calculated mclk frequency
+ when the stream starts.
+ $ref: /schemas/types.yaml#/definitions/phandle-array
+ system-clock-frequency:
+ description: |
+ If a clock is specified and a multiplication factor is given with
+ mclk-fs, the clock will be set to the calculated mclk frequency
+ when the stream starts.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ system-clock-direction-out:
+ description: |
+ specifies clock direction as 'out' on initialization.
+ It is useful for some aCPUs with fixed clocks.
+ $ref: /schemas/types.yaml#/definitions/flag
+ required:
+ - sound-dai
+
+properties:
+ compatible:
+ contains:
+ enum:
+ - simple-audio-card
+ - simple-scu-audio-card
+
+ "#address-cells": true
+ "#size-cells": true
+
+ simple-audio-card,name:
+ description: User specified audio sound card name.
+ $ref: /schemas/types.yaml#/definitions/string
+
+ simple-audio-card,widgets:
+ description: User specified audio sound card name.
+ $ref: /schemas/types.yaml#/definitions/non-unique-string-array
+
+ simple-audio-card,routing:
+ description: |
+ A list of the connections between audio components.
+ Each entry is a pair of strings, the first being the
+ sink, the second being the source.
+ $ref: /schemas/types.yaml#/definitions/non-unique-string-array
+
+patternProperties:
+ "^simple-audio-card,cpu(@.*)?":
+ description: CPU node
+ $ref: "#/definitions/dai"
+ "^simple-audio-card,codec(@.*)?":
+ description: Codec node
+ $ref: "#/definitions/dai"
+
+ # common properties
+ "^simple-audio-card,frame-master$":
+ $ref: "#/definitions/frame-master"
+ "^simple-audio-card,bitclock-master$":
+ $ref: "#/definitions/bitclock-master"
+ "^simple-audio-card,frame-inversion$":
+ $ref: "#/definitions/frame-inversion"
+ "^simple-audio-card,bitclock-inversion$":
+ $ref: "#/definitions/bitclock-inversion"
+ "^simple-audio-card,format$":
+ $ref: "#/definitions/format"
+ "^simple-audio-card,mclk-fs$":
+ $ref: "#/definitions/mclk-fs"
+ "^simple-audio-card,aux-devs$":
+ $ref: "#/definitions/aux-devs"
+ "^simple-audio-card,convert-rate$":
+ $ref: "#/definitions/convert-rate"
+ "^simple-audio-card,convert-channels$":
+ $ref: "#/definitions/convert-channels"
+ "^simple-audio-card,prefix$":
+ $ref: "#/definitions/prefix"
+ "^simple-audio-card,pin-switches$":
+ $ref: "#/definitions/pin-switches"
+# use common *-gpio for
+# simple-audio-card,hp-det-gpio:
+# simple-audio-card,mic-det-gpio:
+
+ "^simple-audio-card,dai-link(@.*)?":
+ description: |
+ Container for dai-link level properties and the CPU and CODEC sub-nodes.
+ This container may be omitted when the card has only one DAI link.
+ type: object
+ properties:
+ reg:
+ $ref: /schemas/types.yaml#/definitions/uint32
+
+ # common properties
+ frame-master:
+ $ref: "#/definitions/frame-master"
+ bitclock-master:
+ $ref: "#/definitions/bitclock-master"
+ frame-inversion:
+ $ref: "#/definitions/frame-inversion"
+ bitclock-inversion:
+ $ref: "#/definitions/bitclock-inversion"
+ format:
+ $ref: "#/definitions/format"
+ mclk-fs:
+ $ref: "#/definitions/mclk-fs"
+ aux-devs:
+ $ref: "#/definitions/aux-devs"
+ convert-rate:
+ $ref: "#/definitions/convert-rate"
+ convert-channels:
+ $ref: "#/definitions/convert-channels"
+ prefix:
+ $ref: "#/definitions/prefix"
+ pin-switches:
+ $ref: "#/definitions/pin-switches"
+ # use common *-gpio for
+ # hp-det-gpio:
+ # mic-det-gpio:
+
+ patternProperties:
+ "^cpu(@.*)?":
+ $ref: "#/definitions/dai"
+ "^codec(@.*)?":
+ $ref: "#/definitions/dai"
+ additionalProperties: false
+
+required:
+ - compatible
+
+additionalProperties: false
+
+examples:
+#--------------------
+# single DAI link
+#--------------------
+ - |
+ sound {
+ compatible = "simple-audio-card";
+ simple-audio-card,name = "VF610-Tower-Sound-Card";
+ simple-audio-card,format = "left_j";
+ simple-audio-card,bitclock-master = <&dailink0_master>;
+ simple-audio-card,frame-master = <&dailink0_master>;
+ simple-audio-card,widgets =
+ "Microphone", "Microphone Jack",
+ "Headphone", "Headphone Jack",
+ "Speaker", "External Speaker";
+ simple-audio-card,routing =
+ "MIC_IN", "Microphone Jack",
+ "Headphone Jack", "HP_OUT",
+ "External Speaker", "LINE_OUT";
+
+ simple-audio-card,cpu {
+ sound-dai = <&sh_fsi2 0>;
+ };
+
+ dailink0_master: simple-audio-card,codec {
+ sound-dai = <&ak4648>;
+ clocks = <&osc>;
+ };
+ };
+
+#--------------------
+# Multi DAI links
+#--------------------
+ - |
+ sound {
+ compatible = "simple-audio-card";
+ simple-audio-card,name = "Cubox Audio";
+
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ simple-audio-card,dai-link@0 { /* I2S - HDMI */
+ reg = <0>;
+ format = "i2s";
+ cpu {
+ sound-dai = <&audio0>;
+ };
+ codec {
+ sound-dai = <&tda998x0>;
+ };
+ };
+
+ simple-audio-card,dai-link@1 { /* S/PDIF - HDMI */
+ reg = <1>;
+ cpu {
+ sound-dai = <&audio1>;
+ };
+ codec {
+ sound-dai = <&tda998x1>;
+ };
+ };
+
+ simple-audio-card,dai-link@2 { /* S/PDIF - S/PDIF */
+ reg = <2>;
+ cpu {
+ sound-dai = <&audio2>;
+ };
+ codec {
+ sound-dai = <&spdif_codec>;
+ };
+ };
+ };
+
+#--------------------
+# route audio from IMX6 SSI2 through TLV320DAC3100 codec
+# through TPA6130A2 amplifier to headphones:
+#--------------------
+ - |
+ sound {
+ compatible = "simple-audio-card";
+
+ simple-audio-card,widgets =
+ "Headphone", "Headphone Jack";
+ simple-audio-card,routing =
+ "Headphone Jack", "HPLEFT",
+ "Headphone Jack", "HPRIGHT",
+ "LEFTIN", "HPL",
+ "RIGHTIN", "HPR";
+ simple-audio-card,aux-devs = <&>;
+ simple-audio-card,cpu {
+ sound-dai = <&ssi2>;
+ };
+ simple-audio-card,codec {
+ sound-dai = <&codec>;
+ clocks = <&clocks>;
+ };
+ };
+
+#--------------------
+# Sampling Rate Conversion
+#--------------------
+ - |
+ sound {
+ compatible = "simple-audio-card";
+
+ simple-audio-card,name = "rsnd-ak4643";
+ simple-audio-card,format = "left_j";
+ simple-audio-card,bitclock-master = <&sndcodec>;
+ simple-audio-card,frame-master = <&sndcodec>;
+
+ simple-audio-card,convert-rate = <48000>;
+
+ simple-audio-card,prefix = "ak4642";
+ simple-audio-card,routing = "ak4642 Playback", "DAI0 Playback",
+ "DAI0 Capture", "ak4642 Capture";
+
+ sndcpu: simple-audio-card,cpu {
+ sound-dai = <&rcar_sound>;
+ };
+
+ sndcodec: simple-audio-card,codec {
+ sound-dai = <&ak4643>;
+ system-clock-frequency = <11289600>;
+ };
+ };
+
+#--------------------
+# 2 CPU 1 Codec (Mixing)
+#--------------------
+ - |
+ sound {
+ compatible = "simple-audio-card";
+
+ simple-audio-card,name = "rsnd-ak4643";
+ simple-audio-card,format = "left_j";
+ simple-audio-card,bitclock-master = <&dpcmcpu>;
+ simple-audio-card,frame-master = <&dpcmcpu>;
+
+ simple-audio-card,convert-rate = <48000>;
+ simple-audio-card,convert-channels = <2>;
+
+ simple-audio-card,routing = "ak4642 Playback", "DAI0 Playback",
+ "ak4642 Playback", "DAI1 Playback";
+
+ dpcmcpu: simple-audio-card,cpu@0 {
+ sound-dai = <&rcar_sound 0>;
+ };
+
+ simple-audio-card,cpu@1 {
+ sound-dai = <&rcar_sound 1>;
+ };
+
+ simple-audio-card,codec {
+ prefix = "ak4642";
+ sound-dai = <&ak4643>;
+ clocks = <&audio_clock>;
+ };
+ };
+
+#--------------------
+# Multi DAI links with DPCM:
+#
+# CPU0 ------ ak4613
+# CPU1 ------ PCM3168A-p /* DPCM 1ch/2ch */
+# CPU2 --/ /* DPCM 3ch/4ch */
+# CPU3 --/ /* DPCM 5ch/6ch */
+# CPU4 --/ /* DPCM 7ch/8ch */
+# CPU5 ------ PCM3168A-c
+#--------------------
+ - |
+ sound {
+ compatible = "simple-audio-card";
+
+ simple-audio-card,routing =
+ "pcm3168a Playback", "DAI1 Playback",
+ "pcm3168a Playback", "DAI2 Playback",
+ "pcm3168a Playback", "DAI3 Playback",
+ "pcm3168a Playback", "DAI4 Playback";
+
+ simple-audio-card,dai-link@0 {
+ format = "left_j";
+ bitclock-master = <&sndcpu0>;
+ frame-master = <&sndcpu0>;
+
+ sndcpu0: cpu {
+ sound-dai = <&rcar_sound 0>;
+ };
+ codec {
+ sound-dai = <&ak4613>;
+ };
+ };
+
+ simple-audio-card,dai-link@1 {
+ format = "i2s";
+ bitclock-master = <&sndcpu1>;
+ frame-master = <&sndcpu1>;
+
+ convert-channels = <8>; /* TDM Split */
+
+ sndcpu1: cpu@0 {
+ sound-dai = <&rcar_sound 1>;
+ };
+ cpu@1 {
+ sound-dai = <&rcar_sound 2>;
+ };
+ cpu@2 {
+ sound-dai = <&rcar_sound 3>;
+ };
+ cpu@3 {
+ sound-dai = <&rcar_sound 4>;
+ };
+ codec {
+ mclk-fs = <512>;
+ prefix = "pcm3168a";
+ dai-tdm-slot-num = <8>;
+ sound-dai = <&pcm3168a 0>;
+ };
+ };
+
+ simple-audio-card,dai-link@2 {
+ format = "i2s";
+ bitclock-master = <&sndcpu2>;
+ frame-master = <&sndcpu2>;
+
+ sndcpu2: cpu {
+ sound-dai = <&rcar_sound 5>;
+ };
+ codec {
+ mclk-fs = <512>;
+ prefix = "pcm3168a";
+ sound-dai = <&pcm3168a 1>;
+ };
+ };
+ };
--
2.17.1
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