xref: /freebsd/sys/contrib/device-tree/Bindings/sound/simple-card.yaml (revision e6bfd18d21b225af6a0ed67ceeaf1293b7b9eba5) 
1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/sound/simple-card.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Simple Audio Card Driver Device Tree Bindings
8
9maintainers:
10  - Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
11
12definitions:
13
14  frame-master:
15    description: Indicates dai-link frame master.
16    $ref: /schemas/types.yaml#/definitions/phandle
17
18  bitclock-master:
19    description: Indicates dai-link bit clock master
20    $ref: /schemas/types.yaml#/definitions/phandle
21
22  frame-inversion:
23    description: dai-link uses frame clock inversion
24    $ref: /schemas/types.yaml#/definitions/flag
25
26  bitclock-inversion:
27    description: dai-link uses bit clock inversion
28    $ref: /schemas/types.yaml#/definitions/flag
29
30  dai-tdm-slot-num:
31    description: see tdm-slot.txt.
32    $ref: /schemas/types.yaml#/definitions/uint32
33
34  dai-tdm-slot-width:
35    description: see tdm-slot.txt.
36    $ref: /schemas/types.yaml#/definitions/uint32
37
38  system-clock-frequency:
39    description: |
40      If a clock is specified and a multiplication factor is given with
41      mclk-fs, the clock will be set to the calculated mclk frequency
42      when the stream starts.
43    $ref: /schemas/types.yaml#/definitions/uint32
44
45  system-clock-direction-out:
46    description: |
47      specifies clock direction as 'out' on initialization.
48      It is useful for some aCPUs with fixed clocks.
49    $ref: /schemas/types.yaml#/definitions/flag
50
51  system-clock-fixed:
52    description: |
53      Specifies that the clock frequency should not be modified.
54      Implied when system-clock-frequency is specified, but can be used when
55      a clock is mapped to the device whose frequency cannot or should not be
56      changed. When mclk-fs is also specified, this restricts the device to a
57      single fixed sampling rate.
58    $ref: /schemas/types.yaml#/definitions/flag
59
60  mclk-fs:
61    description: |
62      Multiplication factor between stream rate and codec mclk.
63      When defined, mclk-fs property defined in dai-link sub nodes are ignored.
64    $ref: /schemas/types.yaml#/definitions/uint32
65
66  aux-devs:
67    description: |
68      List of phandles pointing to auxiliary devices, such
69      as amplifiers, to be added to the sound card.
70    $ref: /schemas/types.yaml#/definitions/phandle-array
71
72  convert-rate:
73    description: CPU to Codec rate convert.
74    $ref: /schemas/types.yaml#/definitions/uint32
75
76  convert-channels:
77    description: CPU to Codec rate channels.
78    $ref: /schemas/types.yaml#/definitions/uint32
79
80  prefix:
81    description: "device name prefix"
82    $ref: /schemas/types.yaml#/definitions/string
83
84  label:
85    maxItems: 1
86
87  routing:
88    description: |
89      A list of the connections between audio components.
90      Each entry is a pair of strings, the first being the
91      connection's sink, the second being the connection's source.
92    $ref: /schemas/types.yaml#/definitions/non-unique-string-array
93
94  widgets:
95    description: User specified audio sound widgets.
96    $ref: /schemas/types.yaml#/definitions/non-unique-string-array
97
98  pin-switches:
99    description: the widget names for which pin switches must be created.
100    $ref: /schemas/types.yaml#/definitions/string-array
101
102  format:
103    description: audio format.
104    items:
105      enum:
106        - i2s
107        - right_j
108        - left_j
109        - dsp_a
110        - dsp_b
111        - ac97
112        - pdm
113        - msb
114        - lsb
115
116  dai:
117    type: object
118    properties:
119      sound-dai:
120        maxItems: 1
121
122      # common properties
123      mclk-fs:
124        $ref: "#/definitions/mclk-fs"
125      prefix:
126        $ref: "#/definitions/prefix"
127      frame-inversion:
128        $ref: "#/definitions/frame-inversion"
129      bitclock-inversion:
130        $ref: "#/definitions/bitclock-inversion"
131      frame-master:
132        $ref: /schemas/types.yaml#/definitions/flag
133      bitclock-master:
134        $ref: /schemas/types.yaml#/definitions/flag
135
136      dai-tdm-slot-num:
137        $ref: "#/definitions/dai-tdm-slot-num"
138      dai-tdm-slot-width:
139        $ref: "#/definitions/dai-tdm-slot-width"
140      clocks:
141        maxItems: 1
142      system-clock-frequency:
143        $ref: "#/definitions/system-clock-frequency"
144      system-clock-direction-out:
145        $ref: "#/definitions/system-clock-direction-out"
146      system-clock-fixed:
147        $ref: "#/definitions/system-clock-fixed"
148    required:
149      - sound-dai
150
151properties:
152  compatible:
153    contains:
154      enum:
155        - simple-audio-card
156        - simple-scu-audio-card
157
158  "#address-cells":
159    const: 1
160  "#size-cells":
161    const: 0
162
163  label:
164    $ref: "#/definitions/label"
165
166  simple-audio-card,name:
167    description: User specified audio sound card name.
168    $ref: /schemas/types.yaml#/definitions/string
169
170  simple-audio-card,widgets:
171    $ref: "#/definitions/widgets"
172  simple-audio-card,routing:
173    $ref: "#/definitions/routing"
174
175  # common properties
176  simple-audio-card,frame-master:
177    $ref: "#/definitions/frame-master"
178  simple-audio-card,bitclock-master:
179    $ref: "#/definitions/bitclock-master"
180  simple-audio-card,frame-inversion:
181    $ref: "#/definitions/frame-inversion"
182  simple-audio-card,bitclock-inversion:
183    $ref: "#/definitions/bitclock-inversion"
184  simple-audio-card,format:
185    $ref: "#/definitions/format"
186  simple-audio-card,mclk-fs:
187    $ref: "#/definitions/mclk-fs"
188  simple-audio-card,aux-devs:
189    $ref: "#/definitions/aux-devs"
190  simple-audio-card,convert-rate:
191    $ref: "#/definitions/convert-rate"
192  simple-audio-card,convert-channels:
193    $ref: "#/definitions/convert-channels"
194  simple-audio-card,prefix:
195    $ref: "#/definitions/prefix"
196  simple-audio-card,pin-switches:
197    $ref: "#/definitions/pin-switches"
198  simple-audio-card,hp-det-gpio:
199    maxItems: 1
200  simple-audio-card,mic-det-gpio:
201    maxItems: 1
202
203patternProperties:
204  "^simple-audio-card,cpu(@[0-9a-f]+)?$":
205    $ref: "#/definitions/dai"
206  "^simple-audio-card,codec(@[0-9a-f]+)?$":
207    $ref: "#/definitions/dai"
208
209  "^simple-audio-card,dai-link(@[0-9a-f]+)?$":
210    description: |
211      Container for dai-link level properties and the CPU and CODEC sub-nodes.
212      This container may be omitted when the card has only one DAI link.
213    type: object
214    properties:
215      reg:
216        maxItems: 1
217
218      # common properties
219      frame-master:
220        $ref: "#/definitions/frame-master"
221      bitclock-master:
222        $ref: "#/definitions/bitclock-master"
223      frame-inversion:
224        $ref: "#/definitions/frame-inversion"
225      bitclock-inversion:
226        $ref: "#/definitions/bitclock-inversion"
227      format:
228        $ref: "#/definitions/format"
229      mclk-fs:
230        $ref: "#/definitions/mclk-fs"
231      aux-devs:
232        $ref: "#/definitions/aux-devs"
233      convert-rate:
234        $ref: "#/definitions/convert-rate"
235      convert-channels:
236        $ref: "#/definitions/convert-channels"
237      prefix:
238        $ref: "#/definitions/prefix"
239      pin-switches:
240        $ref: "#/definitions/pin-switches"
241      hp-det-gpio:
242        maxItems: 1
243      mic-det-gpio:
244        maxItems: 1
245
246    patternProperties:
247      "^cpu(@[0-9a-f]+)?":
248        $ref: "#/definitions/dai"
249      "^codec(@[0-9a-f]+)?":
250        $ref: "#/definitions/dai"
251    additionalProperties: false
252
253required:
254  - compatible
255
256additionalProperties: false
257
258examples:
259#--------------------
260# single DAI link
261#--------------------
262  - |
263    sound {
264        compatible = "simple-audio-card";
265        simple-audio-card,name = "VF610-Tower-Sound-Card";
266        simple-audio-card,format = "left_j";
267        simple-audio-card,bitclock-master = <&dailink0_master>;
268        simple-audio-card,frame-master = <&dailink0_master>;
269        simple-audio-card,widgets =
270                "Microphone", "Microphone Jack",
271                "Headphone", "Headphone Jack",
272                "Speaker", "External Speaker";
273        simple-audio-card,routing =
274                "MIC_IN", "Microphone Jack",
275                "Headphone Jack", "HP_OUT",
276                "External Speaker", "LINE_OUT";
277
278        simple-audio-card,cpu {
279            sound-dai = <&sh_fsi2 0>;
280        };
281
282        dailink0_master: simple-audio-card,codec {
283            sound-dai = <&ak4648>;
284            clocks = <&osc>;
285        };
286    };
287
288#--------------------
289# Multi DAI links
290#--------------------
291  - |
292    sound {
293        compatible = "simple-audio-card";
294        simple-audio-card,name = "Cubox Audio";
295
296        #address-cells = <1>;
297        #size-cells = <0>;
298
299        simple-audio-card,dai-link@0 {		/* I2S - HDMI */
300            reg = <0>;
301            format = "i2s";
302            cpu {
303                sound-dai = <&audio0>;
304            };
305            codec {
306                sound-dai = <&tda998x0>;
307            };
308        };
309
310        simple-audio-card,dai-link@1 {		/* S/PDIF - HDMI */
311            reg = <1>;
312            cpu {
313                sound-dai = <&audio1>;
314            };
315            codec {
316                sound-dai = <&tda998x1>;
317            };
318        };
319
320        simple-audio-card,dai-link@2 {		/* S/PDIF - S/PDIF */
321            reg = <2>;
322            cpu {
323                sound-dai = <&audio2>;
324            };
325            codec {
326                sound-dai = <&spdif_codec>;
327            };
328        };
329    };
330
331#--------------------
332# route audio from IMX6 SSI2 through TLV320DAC3100 codec
333# through TPA6130A2 amplifier to headphones:
334#--------------------
335  - |
336    sound {
337        compatible = "simple-audio-card";
338
339        simple-audio-card,widgets =
340            "Headphone", "Headphone Jack";
341        simple-audio-card,routing =
342            "Headphone Jack", "HPLEFT",
343            "Headphone Jack", "HPRIGHT",
344            "LEFTIN", "HPL",
345            "RIGHTIN", "HPR";
346        simple-audio-card,aux-devs = <&amp>;
347        simple-audio-card,cpu {
348            sound-dai = <&ssi2>;
349        };
350        simple-audio-card,codec {
351            sound-dai = <&codec>;
352            clocks = <&clocks>;
353        };
354    };
355
356#--------------------
357# Sampling Rate Conversion
358#--------------------
359  - |
360    sound {
361        compatible = "simple-audio-card";
362
363        simple-audio-card,name = "rsnd-ak4643";
364        simple-audio-card,format = "left_j";
365        simple-audio-card,bitclock-master = <&sndcodec>;
366        simple-audio-card,frame-master = <&sndcodec>;
367
368        simple-audio-card,convert-rate = <48000>;
369
370        simple-audio-card,prefix = "ak4642";
371        simple-audio-card,routing = "ak4642 Playback", "DAI0 Playback",
372                                    "DAI0 Capture", "ak4642 Capture";
373
374        sndcpu: simple-audio-card,cpu {
375            sound-dai = <&rcar_sound>;
376        };
377
378        sndcodec: simple-audio-card,codec {
379            sound-dai = <&ak4643>;
380            system-clock-frequency = <11289600>;
381        };
382    };
383
384#--------------------
385# 2 CPU 1 Codec (Mixing)
386#--------------------
387  - |
388    sound {
389        compatible = "simple-audio-card";
390        #address-cells = <1>;
391        #size-cells = <0>;
392
393        simple-audio-card,name = "rsnd-ak4643";
394        simple-audio-card,format = "left_j";
395        simple-audio-card,bitclock-master = <&dpcmcpu>;
396        simple-audio-card,frame-master = <&dpcmcpu>;
397
398        simple-audio-card,convert-rate = <48000>;
399        simple-audio-card,convert-channels = <2>;
400
401        simple-audio-card,routing = "ak4642 Playback", "DAI0 Playback",
402                                    "ak4642 Playback", "DAI1 Playback";
403
404        dpcmcpu: simple-audio-card,cpu@0 {
405            reg = <0>;
406            sound-dai = <&rcar_sound 0>;
407        };
408
409        simple-audio-card,cpu@1 {
410            reg = <1>;
411            sound-dai = <&rcar_sound 1>;
412        };
413
414        simple-audio-card,codec {
415            prefix = "ak4642";
416            sound-dai = <&ak4643>;
417            clocks = <&audio_clock>;
418        };
419    };
420
421#--------------------
422# Multi DAI links with DPCM:
423#
424# CPU0 ------ ak4613
425# CPU1 ------ PCM3168A-p  /* DPCM 1ch/2ch */
426# CPU2 --/                /* DPCM 3ch/4ch */
427# CPU3 --/                /* DPCM 5ch/6ch */
428# CPU4 --/                /* DPCM 7ch/8ch */
429# CPU5 ------ PCM3168A-c
430#--------------------
431  - |
432    sound {
433        compatible = "simple-audio-card";
434        #address-cells = <1>;
435        #size-cells = <0>;
436
437        simple-audio-card,routing =
438            "pcm3168a Playback", "DAI1 Playback",
439            "pcm3168a Playback", "DAI2 Playback",
440            "pcm3168a Playback", "DAI3 Playback",
441            "pcm3168a Playback", "DAI4 Playback";
442
443        simple-audio-card,dai-link@0 {
444            reg = <0>;
445            format = "left_j";
446            bitclock-master = <&sndcpu0>;
447            frame-master = <&sndcpu0>;
448
449            sndcpu0: cpu {
450                sound-dai = <&rcar_sound 0>;
451            };
452            codec {
453                sound-dai = <&ak4613>;
454            };
455        };
456
457        simple-audio-card,dai-link@1 {
458            reg = <1>;
459            format = "i2s";
460            bitclock-master = <&sndcpu1>;
461            frame-master = <&sndcpu1>;
462
463            convert-channels = <8>; /* TDM Split */
464
465            sndcpu1: cpu0 {
466                sound-dai = <&rcar_sound 1>;
467            };
468            cpu1 {
469                sound-dai = <&rcar_sound 2>;
470            };
471            cpu2 {
472                sound-dai = <&rcar_sound 3>;
473            };
474            cpu3 {
475                sound-dai = <&rcar_sound 4>;
476            };
477            codec {
478                mclk-fs = <512>;
479                prefix = "pcm3168a";
480                dai-tdm-slot-num = <8>;
481                sound-dai = <&pcm3168a 0>;
482            };
483        };
484
485        simple-audio-card,dai-link@2 {
486            reg = <2>;
487            format = "i2s";
488            bitclock-master = <&sndcpu2>;
489            frame-master = <&sndcpu2>;
490
491            sndcpu2: cpu {
492                sound-dai = <&rcar_sound 5>;
493            };
494            codec {
495                mclk-fs = <512>;
496                prefix = "pcm3168a";
497                sound-dai = <&pcm3168a 1>;
498            };
499        };
500    };
501