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2024-10-09 244b2c5ca8b14627e4a17755e5922221e121c771 
 kernel/Documentation/devicetree/bindings/sound/renesas,rsnd.txt
....@@ -39,15 +39,7 @@
3939 Playback: [MEM] -> [SRC2] -> [DVC0] -> [SSIU0/SSI0] -> [codec]
4040 Capture:  [MEM] <- [DVC1] <- [SRC3] <- [SSIU1/SSI1] <- [codec]
4141 
42
-	&rcar_sound {
43
-		...
44
-		rcar_sound,dai {
45
-			dai0 {
46
-				playback = <&ssi0 &src2 &dvc0>;
47
-				capture  = <&ssi1 &src3 &dvc1>;
48
-			};
49
-		};
50
-	};
42
+see "Example: simple sound card"
5143 
5244 You can use below.
5345 ${LINUX}/arch/arm/boot/dts/r8a7790.dts can be good example.
....@@ -83,29 +75,8 @@
8375 **     Asynchronous mode
8476 ------------------
8577 
86
-You need to use "simple-scu-audio-card" sound card for it.
87
-example)
88
-
89
-	sound {
90
-		compatible = "simple-scu-audio-card";
91
-		...
92
-		/*
93
-		 * SRC Asynchronous mode setting
94
-		 * Playback:
95
-		 * All input data will be converted to 48kHz
96
-		 * Capture:
97
-		 * Inputed 48kHz data will be converted to
98
-		 * system specified Hz
99
-		 */
100
-		simple-audio-card,convert-rate = <48000>;
101
-		...
102
-		simple-audio-card,cpu {
103
-			sound-dai = <&rcar_sound>;
104
-		};
105
-		simple-audio-card,codec {
106
-			...
107
-		};
108
-	};
78
+You need to use "simple-scu-audio-card" or "audio-graph-scu-card" for it.
79
+see "Example: simple sound card for Asynchronous mode"
10980 
11081 ------------------
11182 **     Synchronous mode
....@@ -141,26 +112,8 @@
141112 	${LINUX}/sound/soc/sh/rcar/ctu.c
142113 	 - comment of header
143114 
144
-You need to use "simple-scu-audio-card" sound card for it.
145
-example)
146
-
147
-	sound {
148
-		compatible = "simple-scu-audio-card";
149
-		...
150
-		/*
151
-		 * CTU setting
152
-		 * All input data will be converted to 2ch
153
-		 * as output data
154
-		 */
155
-		simple-audio-card,convert-channels = <2>;
156
-		...
157
-		simple-audio-card,cpu {
158
-			sound-dai = <&rcar_sound>;
159
-		};
160
-		simple-audio-card,codec {
161
-			...
162
-		};
163
-	};
115
+You need to use "simple-scu-audio-card" or "audio-graph-scu-card" for it.
116
+see "Example: simple sound card for channel convert"
164117 
165118 Ex) Exchange output channel
166119  Input -> Output
....@@ -190,42 +143,13 @@
190143 	aplay -D plughw:0,0 xxxx.wav &
191144 	aplay -D plughw:0,1 yyyy.wav
192145 
193
-You need to use "simple-scu-audio-card" sound card for it.
146
+You need to use "simple-scu-audio-card" or "audio-graph-scu-card" for it.
194147 Ex)
195148 	[MEM] -> [SRC1] -> [CTU02] -+-> [MIX0] -> [DVC0] -> [SSI0]
196149 	                            |
197150 	[MEM] -> [SRC2] -> [CTU03] -+
198151 
199
-	sound {
200
-		#address-cells = <1>;
201
-		#size-cells = <0>;
202
-
203
-		compatible = "simple-scu-audio-card";
204
-		...
205
-		simple-audio-card,cpu@0 {
206
-			reg = <0>;
207
-			sound-dai = <&rcar_sound 0>;
208
-		};
209
-		simple-audio-card,cpu@1 {
210
-			reg = <1>;
211
-			sound-dai = <&rcar_sound 1>;
212
-		};
213
-		simple-audio-card,codec {
214
-			...
215
-		};
216
-	};
217
-
218
-	&rcar_sound {
219
-		...
220
-		rcar_sound,dai {
221
-			dai0 {
222
-				playback = <&src1 &ctu02 &mix0 &dvc0 &ssi0>;
223
-			};
224
-			dai1 {
225
-				playback = <&src2 &ctu03 &mix0 &dvc0 &ssi0>;
226
-			};
227
-		};
228
-	};
152
+see "Example: simple sound card for MIXer"
229153 
230154 =============================================
231155 * DVC (Digital Volume and Mute Function)
....@@ -257,15 +181,31 @@
257181 * SSIU (Serial Sound Interface Unit)
258182 =============================================
259183 
260
-There is no DT settings for SSIU, because SSIU will be automatically
261
-selected via SSI.
262184 SSIU can avoid some under/over run error, because it has some buffer.
263185 But you can't use it if SSI was PIO mode.
264
-In DMA mode, you can select not to use SSIU by using "no-busif" on DT.
186
+In DMA mode, you can select not to use SSIU by using "no-busif" via SSI.
265187 
266
-	&ssi0 {
267
-		no-busif;
268
-	};
188
+SSIU handles BUSIF which will be used for TDM Split mode.
189
+This driver is assuming that audio-graph card will be used.
190
+
191
+TDM Split mode merges 4 sounds. You can see 4 sound interface on system,
192
+and these sounds will be merged SSIU/SSI.
193
+
194
+	aplay -D plughw:0,0 xxxx.wav &
195
+	aplay -D plughw:0,1 xxxx.wav &
196
+	aplay -D plughw:0,2 xxxx.wav &
197
+	aplay -D plughw:0,3 xxxx.wav
198
+
199
+	          2ch                     8ch
200
+	[MEM] -> [SSIU 30] -+-> [SSIU 3] --> [Codec]
201
+	          2ch       |
202
+	[MEM] -> [SSIU 31] -+
203
+	          2ch       |
204
+	[MEM] -> [SSIU 32] -+
205
+	          2ch       |
206
+	[MEM] -> [SSIU 33] -+
207
+
208
+see "Example: simple sound card for TDM Split"
269209 
270210 =============================================
271211 * SSI (Serial Sound Interface)
....@@ -304,14 +244,7 @@
304244 You can use Multi-SSI.
305245 This is example of SSI0/SSI1/SSI2 (= for 6ch)
306246 
307
-	&rcar_sound {
308
-		...
309
-		rcar_sound,dai {
310
-			dai0 {
311
-				playback = <&ssi0 &ssi1 &ssi2 &src0 &dvc0>;
312
-			};
313
-		};
314
-	};
247
+see "Example: simple sound card for Multi channel"
315248 
316249 ** TDM-SSI
317250 
....@@ -319,19 +252,7 @@
319252 This is example of TDM 6ch.
320253 Driver can automatically switches TDM <-> stereo mode in this case.
321254 
322
-	rsnd_tdm: sound {
323
-		compatible = "simple-audio-card";
324
-		...
325
-		simple-audio-card,cpu {
326
-			/* system can use TDM 6ch */
327
-			dai-tdm-slot-num = <6>;
328
-			sound-dai = <&rcar_sound>;
329
-		};
330
-		simple-audio-card,codec {
331
-			...
332
-		};
333
-	};
334
-
255
+see "Example: simple sound card for TDM"
335256 
336257 =============================================
337258 Required properties:
....@@ -340,10 +261,17 @@
340261 - compatible			: "renesas,rcar_sound-<soctype>", fallbacks
341262 				  "renesas,rcar_sound-gen1" if generation1, and
342263 				  "renesas,rcar_sound-gen2" if generation2 (or RZ/G1)
343
-				  "renesas,rcar_sound-gen3" if generation3
264
+				  "renesas,rcar_sound-gen3" if generation3 (or RZ/G2)
344265 				  Examples with soctypes are:
266
+				    - "renesas,rcar_sound-r8a7742" (RZ/G1H)
345267 				    - "renesas,rcar_sound-r8a7743" (RZ/G1M)
268
+				    - "renesas,rcar_sound-r8a7744" (RZ/G1N)
346269 				    - "renesas,rcar_sound-r8a7745" (RZ/G1E)
270
+				    - "renesas,rcar_sound-r8a77470" (RZ/G1C)
271
+				    - "renesas,rcar_sound-r8a774a1" (RZ/G2M)
272
+				    - "renesas,rcar_sound-r8a774b1" (RZ/G2N)
273
+				    - "renesas,rcar_sound-r8a774c0" (RZ/G2E)
274
+				    - "renesas,rcar_sound-r8a774e1" (RZ/G2H)
347275 				    - "renesas,rcar_sound-r8a7778" (R-Car M1A)
348276 				    - "renesas,rcar_sound-r8a7779" (R-Car H1)
349277 				    - "renesas,rcar_sound-r8a7790" (R-Car H2)
....@@ -353,12 +281,22 @@
353281 				    - "renesas,rcar_sound-r8a7795" (R-Car H3)
354282 				    - "renesas,rcar_sound-r8a7796" (R-Car M3-W)
355283 				    - "renesas,rcar_sound-r8a77965" (R-Car M3-N)
284
+				    - "renesas,rcar_sound-r8a77990" (R-Car E3)
285
+				    - "renesas,rcar_sound-r8a77995" (R-Car D3)
356286 - reg				: Should contain the register physical address.
357287 				  required register is
358288 				   SRU/ADG/SSI      if generation1
359
-				   SRU/ADG/SSIU/SSI if generation2
289
+				   SRU/ADG/SSIU/SSI/AUDIO-DMAC-periperi if generation2/generation3
290
+				   Select extended AUDIO-DMAC-periperi address if SoC has it,
291
+				   otherwise select normal AUDIO-DMAC-periperi address.
292
+- reg-names			: Should contain the register names.
293
+				   scu/adg/ssi	if generation1
294
+				   scu/adg/ssiu/ssi/audmapp if generation2/generation3
360295 - rcar_sound,ssi		: Should contain SSI feature.
361296 				  The number of SSI subnode should be same as HW.
297
+				  see below for detail.
298
+- rcar_sound,ssiu		: Should contain SSIU feature.
299
+				  The number of SSIU subnode should be same as HW.
362300 				  see below for detail.
363301 - rcar_sound,src		: Should contain SRC feature.
364302 				  The number of SRC subnode should be same as HW.
....@@ -399,7 +337,12 @@
399337 - no-busif			: BUSIF is not ussed when [mem -> SSI] via DMA case
400338 - dma				: Should contain Audio DMAC entry
401339 - dma-names			: SSI  case "rx"  (=playback), "tx"  (=capture)
340
+				  Deprecated: see SSIU subnode properties
402341 				  SSIU case "rxu" (=playback), "txu" (=capture)
342
+
343
+SSIU subnode properties:
344
+- dma				: Should contain Audio DMAC entry
345
+- dma-names			: "rx" (=playback), "tx" (=capture)
403346 
404347 SRC subnode properties:
405348 - dma				: Should contain Audio DMAC entry
....@@ -529,56 +472,55 @@
529472 		};
530473 	};
531474 
475
+	rcar_sound,ssiu {
476
+		ssiu00: ssiu-0 {
477
+			dmas = <&audma0 0x15>, <&audma1 0x16>;
478
+			dma-names = "rx", "tx";
479
+		};
480
+		ssiu01: ssiu-1 {
481
+			dmas = <&audma0 0x35>, <&audma1 0x36>;
482
+			dma-names = "rx", "tx";
483
+		};
484
+
485
+		...
486
+
487
+		ssiu95: ssiu-49 {
488
+			dmas = <&audma0 0xA5>, <&audma1 0xA6>;
489
+			dma-names = "rx", "tx";
490
+		};
491
+		ssiu96: ssiu-50 {
492
+			dmas = <&audma0 0xA7>, <&audma1 0xA8>;
493
+			dma-names = "rx", "tx";
494
+		};
495
+		ssiu97: ssiu-51 {
496
+			dmas = <&audma0 0xA9>, <&audma1 0xAA>;
497
+			dma-names = "rx", "tx";
498
+		};
499
+	};
500
+
532501 	rcar_sound,ssi {
533502 		ssi0: ssi-0 {
534503 			interrupts = <0 370 IRQ_TYPE_LEVEL_HIGH>;
535
-			dmas = <&audma0 0x01>, <&audma1 0x02>, <&audma0 0x15>, <&audma1 0x16>;
536
-			dma-names = "rx", "tx", "rxu", "txu";
504
+			dmas = <&audma0 0x01>, <&audma1 0x02>;
505
+			dma-names = "rx", "tx";
537506 		};
538507 		ssi1: ssi-1 {
539508 			interrupts = <0 371 IRQ_TYPE_LEVEL_HIGH>;
540
-			dmas = <&audma0 0x03>, <&audma1 0x04>, <&audma0 0x49>, <&audma1 0x4a>;
541
-			dma-names = "rx", "tx", "rxu", "txu";
509
+			dmas = <&audma0 0x03>, <&audma1 0x04>;
510
+			dma-names = "rx", "tx";
542511 		};
543
-		ssi2: ssi-2 {
544
-			interrupts = <0 372 IRQ_TYPE_LEVEL_HIGH>;
545
-			dmas = <&audma0 0x05>, <&audma1 0x06>, <&audma0 0x63>, <&audma1 0x64>;
546
-			dma-names = "rx", "tx", "rxu", "txu";
547
-		};
548
-		ssi3: ssi-3 {
549
-			interrupts = <0 373 IRQ_TYPE_LEVEL_HIGH>;
550
-			dmas = <&audma0 0x07>, <&audma1 0x08>, <&audma0 0x6f>, <&audma1 0x70>;
551
-			dma-names = "rx", "tx", "rxu", "txu";
552
-		};
553
-		ssi4: ssi-4 {
554
-			interrupts = <0 374 IRQ_TYPE_LEVEL_HIGH>;
555
-			dmas = <&audma0 0x09>, <&audma1 0x0a>, <&audma0 0x71>, <&audma1 0x72>;
556
-			dma-names = "rx", "tx", "rxu", "txu";
557
-		};
558
-		ssi5: ssi-5 {
559
-			interrupts = <0 375 IRQ_TYPE_LEVEL_HIGH>;
560
-			dmas = <&audma0 0x0b>, <&audma1 0x0c>, <&audma0 0x73>, <&audma1 0x74>;
561
-			dma-names = "rx", "tx", "rxu", "txu";
562
-		};
563
-		ssi6: ssi-6 {
564
-			interrupts = <0 376 IRQ_TYPE_LEVEL_HIGH>;
565
-			dmas = <&audma0 0x0d>, <&audma1 0x0e>, <&audma0 0x75>, <&audma1 0x76>;
566
-			dma-names = "rx", "tx", "rxu", "txu";
567
-		};
568
-		ssi7: ssi-7 {
569
-			interrupts = <0 377 IRQ_TYPE_LEVEL_HIGH>;
570
-			dmas = <&audma0 0x0f>, <&audma1 0x10>, <&audma0 0x79>, <&audma1 0x7a>;
571
-			dma-names = "rx", "tx", "rxu", "txu";
572
-		};
512
+
513
+		...
514
+
573515 		ssi8: ssi-8 {
574516 			interrupts = <0 378 IRQ_TYPE_LEVEL_HIGH>;
575
-			dmas = <&audma0 0x11>, <&audma1 0x12>, <&audma0 0x7b>, <&audma1 0x7c>;
576
-			dma-names = "rx", "tx", "rxu", "txu";
517
+			dmas = <&audma0 0x11>, <&audma1 0x12>;
518
+			dma-names = "rx", "tx";
577519 		};
578520 		ssi9: ssi-9 {
579521 			interrupts = <0 379 IRQ_TYPE_LEVEL_HIGH>;
580
-			dmas = <&audma0 0x13>, <&audma1 0x14>, <&audma0 0x7d>, <&audma1 0x7e>;
581
-			dma-names = "rx", "tx", "rxu", "txu";
522
+			dmas = <&audma0 0x13>, <&audma1 0x14>;
523
+			dma-names = "rx", "tx";
582524 		};
583525 	};
584526 
....@@ -644,25 +586,174 @@
644586 };
645587 
646588 =============================================
589
+Example: simple sound card for Asynchronous mode
590
+=============================================
591
+
592
+sound {
593
+	compatible = "simple-scu-audio-card";
594
+	...
595
+	/*
596
+	 * SRC Asynchronous mode setting
597
+	 * Playback:
598
+	 * All input data will be converted to 48kHz
599
+	 * Capture:
600
+	 * Inputed 48kHz data will be converted to
601
+	 * system specified Hz
602
+	 */
603
+	simple-audio-card,convert-rate = <48000>;
604
+	...
605
+	simple-audio-card,cpu {
606
+		sound-dai = <&rcar_sound>;
607
+	};
608
+	simple-audio-card,codec {
609
+		...
610
+	};
611
+};
612
+
613
+=============================================
614
+Example: simple sound card for channel convert
615
+=============================================
616
+
617
+sound {
618
+	compatible = "simple-scu-audio-card";
619
+	...
620
+	/*
621
+	 * CTU setting
622
+	 * All input data will be converted to 2ch
623
+	 * as output data
624
+	 */
625
+	simple-audio-card,convert-channels = <2>;
626
+	...
627
+	simple-audio-card,cpu {
628
+		sound-dai = <&rcar_sound>;
629
+	};
630
+	simple-audio-card,codec {
631
+		...
632
+	};
633
+};
634
+
635
+=============================================
636
+Example: simple sound card for MIXer
637
+=============================================
638
+
639
+sound {
640
+	compatible = "simple-scu-audio-card";
641
+	...
642
+	simple-audio-card,cpu@0 {
643
+		sound-dai = <&rcar_sound 0>;
644
+	};
645
+	simple-audio-card,cpu@1 {
646
+		sound-dai = <&rcar_sound 1>;
647
+	};
648
+	simple-audio-card,codec {
649
+		...
650
+	};
651
+};
652
+
653
+&rcar_sound {
654
+	...
655
+	rcar_sound,dai {
656
+		dai0 {
657
+			playback = <&src1 &ctu02 &mix0 &dvc0 &ssi0>;
658
+		};
659
+		dai1 {
660
+			playback = <&src2 &ctu03 &mix0 &dvc0 &ssi0>;
661
+		};
662
+	};
663
+};
664
+
665
+=============================================
647666 Example: simple sound card for TDM
648667 =============================================
649668 
650
-	rsnd_tdm: sound {
651
-		compatible = "simple-audio-card";
669
+rsnd_tdm: sound {
670
+	compatible = "simple-audio-card";
652671 
653
-		simple-audio-card,format = "left_j";
654
-		simple-audio-card,bitclock-master = <&sndcodec>;
655
-		simple-audio-card,frame-master = <&sndcodec>;
672
+	simple-audio-card,format = "left_j";
673
+	simple-audio-card,bitclock-master = <&sndcodec>;
674
+	simple-audio-card,frame-master = <&sndcodec>;
656675 
657
-		sndcpu: simple-audio-card,cpu {
658
-			sound-dai = <&rcar_sound>;
659
-			dai-tdm-slot-num = <6>;
676
+	sndcpu: simple-audio-card,cpu {
677
+		sound-dai = <&rcar_sound>;
678
+		dai-tdm-slot-num = <6>;
679
+	};
680
+
681
+	sndcodec: simple-audio-card,codec {
682
+		sound-dai = <&xxx>;
683
+	};
684
+};
685
+
686
+=============================================
687
+Example: simple sound card for TDM Split
688
+=============================================
689
+
690
+sound_card: sound {
691
+	compatible = "audio-graph-scu-card";
692
+	prefix = "xxxx";
693
+	routing = "xxxx Playback", "DAI0 Playback",
694
+		  "xxxx Playback", "DAI1 Playback",
695
+		  "xxxx Playback", "DAI2 Playback",
696
+		  "xxxx Playback", "DAI3 Playback";
697
+	convert-channels = <8>; /* TDM Split */
698
+
699
+	dais = <&rsnd_port0     /* playback ch1/ch2 */
700
+		&rsnd_port1     /* playback ch3/ch4 */
701
+		&rsnd_port2     /* playback ch5/ch6 */
702
+		&rsnd_port3     /* playback ch7/ch8 */
703
+		>;
704
+};
705
+
706
+audio-codec {
707
+	...
708
+	port {
709
+		codec_0: endpoint@1 {
710
+			remote-endpoint = <&rsnd_ep0>;
660711 		};
661
-
662
-		sndcodec: simple-audio-card,codec {
663
-			sound-dai = <&xxx>;
712
+		codec_1: endpoint@2 {
713
+			remote-endpoint = <&rsnd_ep1>;
714
+		};
715
+		codec_2: endpoint@3 {
716
+			remote-endpoint = <&rsnd_ep2>;
717
+		};
718
+		codec_3: endpoint@4 {
719
+			remote-endpoint = <&rsnd_ep3>;
664720 		};
665721 	};
722
+};
723
+
724
+&rcar_sound {
725
+	...
726
+	ports {
727
+		rsnd_port0: port@0 {
728
+			rsnd_ep0: endpoint {
729
+				remote-endpoint = <&codec_0>;
730
+				...
731
+				playback = <&ssiu30 &ssi3>;
732
+			};
733
+		};
734
+		rsnd_port1: port@1 {
735
+			rsnd_ep1: endpoint {
736
+				remote-endpoint = <&codec_1>;
737
+				...
738
+				playback = <&ssiu31 &ssi3>;
739
+			};
740
+		};
741
+		rsnd_port2: port@2 {
742
+			rsnd_ep2: endpoint {
743
+				remote-endpoint = <&codec_2>;
744
+				...
745
+				playback = <&ssiu32 &ssi3>;
746
+			};
747
+		};
748
+		rsnd_port3: port@3 {
749
+			rsnd_ep3: endpoint {
750
+				remote-endpoint = <&codec_3>;
751
+				...
752
+				playback = <&ssiu33 &ssi3>;
753
+			};
754
+		};
755
+	};
756
+};
666757 
667758 =============================================
668759 Example: simple sound card for Multi channel