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Merge branch 'work.ipc' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs
[GitHub/moto-9609/android_kernel_motorola_exynos9610.git] / sound / soc / sh / rcar / core.c
1 /*
2 * Renesas R-Car SRU/SCU/SSIU/SSI support
3 *
4 * Copyright (C) 2013 Renesas Solutions Corp.
5 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
6 *
7 * Based on fsi.c
8 * Kuninori Morimoto <morimoto.kuninori@renesas.com>
9 *
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License version 2 as
12 * published by the Free Software Foundation.
13 */
14
15 /*
16 * Renesas R-Car sound device structure
17 *
18 * Gen1
19 *
20 * SRU : Sound Routing Unit
21 * - SRC : Sampling Rate Converter
22 * - CMD
23 * - CTU : Channel Count Conversion Unit
24 * - MIX : Mixer
25 * - DVC : Digital Volume and Mute Function
26 * - SSI : Serial Sound Interface
27 *
28 * Gen2
29 *
30 * SCU : Sampling Rate Converter Unit
31 * - SRC : Sampling Rate Converter
32 * - CMD
33 * - CTU : Channel Count Conversion Unit
34 * - MIX : Mixer
35 * - DVC : Digital Volume and Mute Function
36 * SSIU : Serial Sound Interface Unit
37 * - SSI : Serial Sound Interface
38 */
39
40 /*
41 * driver data Image
42 *
43 * rsnd_priv
44 * |
45 * | ** this depends on Gen1/Gen2
46 * |
47 * +- gen
48 * |
49 * | ** these depend on data path
50 * | ** gen and platform data control it
51 * |
52 * +- rdai[0]
53 * | | sru ssiu ssi
54 * | +- playback -> [mod] -> [mod] -> [mod] -> ...
55 * | |
56 * | | sru ssiu ssi
57 * | +- capture -> [mod] -> [mod] -> [mod] -> ...
58 * |
59 * +- rdai[1]
60 * | | sru ssiu ssi
61 * | +- playback -> [mod] -> [mod] -> [mod] -> ...
62 * | |
63 * | | sru ssiu ssi
64 * | +- capture -> [mod] -> [mod] -> [mod] -> ...
65 * ...
66 * |
67 * | ** these control ssi
68 * |
69 * +- ssi
70 * | |
71 * | +- ssi[0]
72 * | +- ssi[1]
73 * | +- ssi[2]
74 * | ...
75 * |
76 * | ** these control src
77 * |
78 * +- src
79 * |
80 * +- src[0]
81 * +- src[1]
82 * +- src[2]
83 * ...
84 *
85 *
86 * for_each_rsnd_dai(xx, priv, xx)
87 * rdai[0] => rdai[1] => rdai[2] => ...
88 *
89 * for_each_rsnd_mod(xx, rdai, xx)
90 * [mod] => [mod] => [mod] => ...
91 *
92 * rsnd_dai_call(xxx, fn )
93 * [mod]->fn() -> [mod]->fn() -> [mod]->fn()...
94 *
95 */
96 #include <linux/pm_runtime.h>
97 #include "rsnd.h"
98
99 #define RSND_RATES SNDRV_PCM_RATE_8000_192000
100 #define RSND_FMTS (SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S16_LE)
101
102 static const struct of_device_id rsnd_of_match[] = {
103 { .compatible = "renesas,rcar_sound-gen1", .data = (void *)RSND_GEN1 },
104 { .compatible = "renesas,rcar_sound-gen2", .data = (void *)RSND_GEN2 },
105 { .compatible = "renesas,rcar_sound-gen3", .data = (void *)RSND_GEN2 }, /* gen2 compatible */
106 {},
107 };
108 MODULE_DEVICE_TABLE(of, rsnd_of_match);
109
110 /*
111 * rsnd_mod functions
112 */
113 void rsnd_mod_make_sure(struct rsnd_mod *mod, enum rsnd_mod_type type)
114 {
115 if (mod->type != type) {
116 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
117 struct device *dev = rsnd_priv_to_dev(priv);
118
119 dev_warn(dev, "%s[%d] is not your expected module\n",
120 rsnd_mod_name(mod), rsnd_mod_id(mod));
121 }
122 }
123
124 char *rsnd_mod_name(struct rsnd_mod *mod)
125 {
126 if (!mod || !mod->ops)
127 return "unknown";
128
129 return mod->ops->name;
130 }
131
132 struct dma_chan *rsnd_mod_dma_req(struct rsnd_dai_stream *io,
133 struct rsnd_mod *mod)
134 {
135 if (!mod || !mod->ops || !mod->ops->dma_req)
136 return NULL;
137
138 return mod->ops->dma_req(io, mod);
139 }
140
141 u32 *rsnd_mod_get_status(struct rsnd_dai_stream *io,
142 struct rsnd_mod *mod,
143 enum rsnd_mod_type type)
144 {
145 return &mod->status;
146 }
147
148 int rsnd_mod_init(struct rsnd_priv *priv,
149 struct rsnd_mod *mod,
150 struct rsnd_mod_ops *ops,
151 struct clk *clk,
152 u32* (*get_status)(struct rsnd_dai_stream *io,
153 struct rsnd_mod *mod,
154 enum rsnd_mod_type type),
155 enum rsnd_mod_type type,
156 int id)
157 {
158 int ret = clk_prepare(clk);
159
160 if (ret)
161 return ret;
162
163 mod->id = id;
164 mod->ops = ops;
165 mod->type = type;
166 mod->clk = clk;
167 mod->priv = priv;
168 mod->get_status = get_status;
169
170 return ret;
171 }
172
173 void rsnd_mod_quit(struct rsnd_mod *mod)
174 {
175 if (mod->clk)
176 clk_unprepare(mod->clk);
177 mod->clk = NULL;
178 }
179
180 void rsnd_mod_interrupt(struct rsnd_mod *mod,
181 void (*callback)(struct rsnd_mod *mod,
182 struct rsnd_dai_stream *io))
183 {
184 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
185 struct rsnd_dai_stream *io;
186 struct rsnd_dai *rdai;
187 int i;
188
189 for_each_rsnd_dai(rdai, priv, i) {
190 io = &rdai->playback;
191 if (mod == io->mod[mod->type])
192 callback(mod, io);
193
194 io = &rdai->capture;
195 if (mod == io->mod[mod->type])
196 callback(mod, io);
197 }
198 }
199
200 int rsnd_io_is_working(struct rsnd_dai_stream *io)
201 {
202 /* see rsnd_dai_stream_init/quit() */
203 return !!io->substream;
204 }
205
206 int rsnd_runtime_channel_original(struct rsnd_dai_stream *io)
207 {
208 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
209
210 return runtime->channels;
211 }
212
213 int rsnd_runtime_channel_after_ctu(struct rsnd_dai_stream *io)
214 {
215 int chan = rsnd_runtime_channel_original(io);
216 struct rsnd_mod *ctu_mod = rsnd_io_to_mod_ctu(io);
217
218 if (ctu_mod) {
219 u32 converted_chan = rsnd_ctu_converted_channel(ctu_mod);
220
221 if (converted_chan)
222 return converted_chan;
223 }
224
225 return chan;
226 }
227
228 int rsnd_runtime_channel_for_ssi(struct rsnd_dai_stream *io)
229 {
230 struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
231 int chan = rsnd_io_is_play(io) ?
232 rsnd_runtime_channel_after_ctu(io) :
233 rsnd_runtime_channel_original(io);
234
235 /* Use Multi SSI */
236 if (rsnd_runtime_is_ssi_multi(io))
237 chan /= rsnd_rdai_ssi_lane_get(rdai);
238
239 /* TDM Extend Mode needs 8ch */
240 if (chan == 6)
241 chan = 8;
242
243 return chan;
244 }
245
246 int rsnd_runtime_is_ssi_multi(struct rsnd_dai_stream *io)
247 {
248 struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
249 int lane = rsnd_rdai_ssi_lane_get(rdai);
250 int chan = rsnd_io_is_play(io) ?
251 rsnd_runtime_channel_after_ctu(io) :
252 rsnd_runtime_channel_original(io);
253
254 return (chan > 2) && (lane > 1);
255 }
256
257 int rsnd_runtime_is_ssi_tdm(struct rsnd_dai_stream *io)
258 {
259 return rsnd_runtime_channel_for_ssi(io) >= 6;
260 }
261
262 /*
263 * ADINR function
264 */
265 u32 rsnd_get_adinr_bit(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
266 {
267 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
268 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
269 struct device *dev = rsnd_priv_to_dev(priv);
270
271 switch (runtime->sample_bits) {
272 case 16:
273 return 8 << 16;
274 case 32:
275 return 0 << 16;
276 }
277
278 dev_warn(dev, "not supported sample bits\n");
279
280 return 0;
281 }
282
283 /*
284 * DALIGN function
285 */
286 u32 rsnd_get_dalign(struct rsnd_mod *mod, struct rsnd_dai_stream *io)
287 {
288 struct rsnd_mod *ssiu = rsnd_io_to_mod_ssiu(io);
289 struct rsnd_mod *target;
290 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
291 u32 val = 0x76543210;
292 u32 mask = ~0;
293
294 /*
295 * *Hardware* L/R and *Software* L/R are inverted.
296 * We need to care about inversion timing to control
297 * Playback/Capture correctly.
298 * The point is [DVC] needs *Hardware* L/R, [MEM] needs *Software* L/R
299 *
300 * sL/R : software L/R
301 * hL/R : hardware L/R
302 * (*) : conversion timing
303 *
304 * Playback
305 * sL/R (*) hL/R hL/R hL/R hL/R hL/R
306 * [MEM] -> [SRC] -> [DVC] -> [CMD] -> [SSIU] -> [SSI] -> codec
307 *
308 * Capture
309 * hL/R hL/R hL/R hL/R hL/R (*) sL/R
310 * codec -> [SSI] -> [SSIU] -> [SRC] -> [DVC] -> [CMD] -> [MEM]
311 */
312 if (rsnd_io_is_play(io)) {
313 struct rsnd_mod *src = rsnd_io_to_mod_src(io);
314
315 target = src ? src : ssiu;
316 } else {
317 struct rsnd_mod *cmd = rsnd_io_to_mod_cmd(io);
318
319 target = cmd ? cmd : ssiu;
320 }
321
322 mask <<= runtime->channels * 4;
323 val = val & mask;
324
325 switch (runtime->sample_bits) {
326 case 16:
327 val |= 0x67452301 & ~mask;
328 break;
329 case 32:
330 val |= 0x76543210 & ~mask;
331 break;
332 }
333
334 /*
335 * exchange channeles on SRC if possible,
336 * otherwise, R/L volume settings on DVC
337 * changes inverted channels
338 */
339 if (mod == target)
340 return val;
341 else
342 return 0x76543210;
343 }
344
345 u32 rsnd_get_busif_shift(struct rsnd_dai_stream *io, struct rsnd_mod *mod)
346 {
347 enum rsnd_mod_type playback_mods[] = {
348 RSND_MOD_SRC,
349 RSND_MOD_CMD,
350 RSND_MOD_SSIU,
351 };
352 enum rsnd_mod_type capture_mods[] = {
353 RSND_MOD_CMD,
354 RSND_MOD_SRC,
355 RSND_MOD_SSIU,
356 };
357 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
358 struct rsnd_mod *tmod = NULL;
359 enum rsnd_mod_type *mods =
360 rsnd_io_is_play(io) ?
361 playback_mods : capture_mods;
362 int i;
363
364 /*
365 * This is needed for 24bit data
366 * We need to shift 8bit
367 *
368 * Linux 24bit data is located as 0x00******
369 * HW 24bit data is located as 0x******00
370 *
371 */
372 switch (runtime->sample_bits) {
373 case 16:
374 return 0;
375 case 32:
376 break;
377 }
378
379 for (i = 0; i < ARRAY_SIZE(playback_mods); i++) {
380 tmod = rsnd_io_to_mod(io, mods[i]);
381 if (tmod)
382 break;
383 }
384
385 if (tmod != mod)
386 return 0;
387
388 if (rsnd_io_is_play(io))
389 return (0 << 20) | /* shift to Left */
390 (8 << 16); /* 8bit */
391 else
392 return (1 << 20) | /* shift to Right */
393 (8 << 16); /* 8bit */
394 }
395
396 /*
397 * rsnd_dai functions
398 */
399 struct rsnd_mod *rsnd_mod_next(int *iterator,
400 struct rsnd_dai_stream *io,
401 enum rsnd_mod_type *array,
402 int array_size)
403 {
404 struct rsnd_mod *mod;
405 enum rsnd_mod_type type;
406 int max = array ? array_size : RSND_MOD_MAX;
407
408 for (; *iterator < max; (*iterator)++) {
409 type = (array) ? array[*iterator] : *iterator;
410 mod = io->mod[type];
411 if (!mod)
412 continue;
413
414 return mod;
415 }
416
417 return NULL;
418 }
419
420 static enum rsnd_mod_type rsnd_mod_sequence[][RSND_MOD_MAX] = {
421 {
422 /* CAPTURE */
423 RSND_MOD_AUDMAPP,
424 RSND_MOD_AUDMA,
425 RSND_MOD_DVC,
426 RSND_MOD_MIX,
427 RSND_MOD_CTU,
428 RSND_MOD_CMD,
429 RSND_MOD_SRC,
430 RSND_MOD_SSIU,
431 RSND_MOD_SSIM3,
432 RSND_MOD_SSIM2,
433 RSND_MOD_SSIM1,
434 RSND_MOD_SSIP,
435 RSND_MOD_SSI,
436 }, {
437 /* PLAYBACK */
438 RSND_MOD_AUDMAPP,
439 RSND_MOD_AUDMA,
440 RSND_MOD_SSIM3,
441 RSND_MOD_SSIM2,
442 RSND_MOD_SSIM1,
443 RSND_MOD_SSIP,
444 RSND_MOD_SSI,
445 RSND_MOD_SSIU,
446 RSND_MOD_DVC,
447 RSND_MOD_MIX,
448 RSND_MOD_CTU,
449 RSND_MOD_CMD,
450 RSND_MOD_SRC,
451 },
452 };
453
454 static int rsnd_status_update(u32 *status,
455 int shift, int add, int timing)
456 {
457 u32 mask = 0xF << shift;
458 u8 val = (*status >> shift) & 0xF;
459 u8 next_val = (val + add) & 0xF;
460 int func_call = (val == timing);
461
462 if (next_val == 0xF) /* underflow case */
463 func_call = 0;
464 else
465 *status = (*status & ~mask) + (next_val << shift);
466
467 return func_call;
468 }
469
470 #define rsnd_dai_call(fn, io, param...) \
471 ({ \
472 struct device *dev = rsnd_priv_to_dev(rsnd_io_to_priv(io)); \
473 struct rsnd_mod *mod; \
474 int is_play = rsnd_io_is_play(io); \
475 int ret = 0, i; \
476 enum rsnd_mod_type *types = rsnd_mod_sequence[is_play]; \
477 for_each_rsnd_mod_arrays(i, mod, io, types, RSND_MOD_MAX) { \
478 int tmp = 0; \
479 u32 *status = mod->get_status(io, mod, types[i]); \
480 int func_call = rsnd_status_update(status, \
481 __rsnd_mod_shift_##fn, \
482 __rsnd_mod_add_##fn, \
483 __rsnd_mod_call_##fn); \
484 dev_dbg(dev, "%s[%d]\t0x%08x %s\n", \
485 rsnd_mod_name(mod), rsnd_mod_id(mod), *status, \
486 (func_call && (mod)->ops->fn) ? #fn : ""); \
487 if (func_call && (mod)->ops->fn) \
488 tmp = (mod)->ops->fn(mod, io, param); \
489 if (tmp) \
490 dev_err(dev, "%s[%d] : %s error %d\n", \
491 rsnd_mod_name(mod), rsnd_mod_id(mod), \
492 #fn, tmp); \
493 ret |= tmp; \
494 } \
495 ret; \
496 })
497
498 int rsnd_dai_connect(struct rsnd_mod *mod,
499 struct rsnd_dai_stream *io,
500 enum rsnd_mod_type type)
501 {
502 struct rsnd_priv *priv;
503 struct device *dev;
504
505 if (!mod)
506 return -EIO;
507
508 if (io->mod[type] == mod)
509 return 0;
510
511 if (io->mod[type])
512 return -EINVAL;
513
514 priv = rsnd_mod_to_priv(mod);
515 dev = rsnd_priv_to_dev(priv);
516
517 io->mod[type] = mod;
518
519 dev_dbg(dev, "%s[%d] is connected to io (%s)\n",
520 rsnd_mod_name(mod), rsnd_mod_id(mod),
521 rsnd_io_is_play(io) ? "Playback" : "Capture");
522
523 return 0;
524 }
525
526 static void rsnd_dai_disconnect(struct rsnd_mod *mod,
527 struct rsnd_dai_stream *io,
528 enum rsnd_mod_type type)
529 {
530 io->mod[type] = NULL;
531 }
532
533 int rsnd_rdai_channels_ctrl(struct rsnd_dai *rdai,
534 int max_channels)
535 {
536 if (max_channels > 0)
537 rdai->max_channels = max_channels;
538
539 return rdai->max_channels;
540 }
541
542 int rsnd_rdai_ssi_lane_ctrl(struct rsnd_dai *rdai,
543 int ssi_lane)
544 {
545 if (ssi_lane > 0)
546 rdai->ssi_lane = ssi_lane;
547
548 return rdai->ssi_lane;
549 }
550
551 struct rsnd_dai *rsnd_rdai_get(struct rsnd_priv *priv, int id)
552 {
553 if ((id < 0) || (id >= rsnd_rdai_nr(priv)))
554 return NULL;
555
556 return priv->rdai + id;
557 }
558
559 #define rsnd_dai_to_priv(dai) snd_soc_dai_get_drvdata(dai)
560 static struct rsnd_dai *rsnd_dai_to_rdai(struct snd_soc_dai *dai)
561 {
562 struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
563
564 return rsnd_rdai_get(priv, dai->id);
565 }
566
567 /*
568 * rsnd_soc_dai functions
569 */
570 void rsnd_dai_period_elapsed(struct rsnd_dai_stream *io)
571 {
572 struct snd_pcm_substream *substream = io->substream;
573
574 /*
575 * this function should be called...
576 *
577 * - if rsnd_dai_pointer_update() returns true
578 * - without spin lock
579 */
580
581 snd_pcm_period_elapsed(substream);
582 }
583
584 static void rsnd_dai_stream_init(struct rsnd_dai_stream *io,
585 struct snd_pcm_substream *substream)
586 {
587 io->substream = substream;
588 }
589
590 static void rsnd_dai_stream_quit(struct rsnd_dai_stream *io)
591 {
592 io->substream = NULL;
593 }
594
595 static
596 struct snd_soc_dai *rsnd_substream_to_dai(struct snd_pcm_substream *substream)
597 {
598 struct snd_soc_pcm_runtime *rtd = substream->private_data;
599
600 return rtd->cpu_dai;
601 }
602
603 static
604 struct rsnd_dai_stream *rsnd_rdai_to_io(struct rsnd_dai *rdai,
605 struct snd_pcm_substream *substream)
606 {
607 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
608 return &rdai->playback;
609 else
610 return &rdai->capture;
611 }
612
613 static int rsnd_soc_dai_trigger(struct snd_pcm_substream *substream, int cmd,
614 struct snd_soc_dai *dai)
615 {
616 struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
617 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
618 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
619 int ret;
620 unsigned long flags;
621
622 spin_lock_irqsave(&priv->lock, flags);
623
624 switch (cmd) {
625 case SNDRV_PCM_TRIGGER_START:
626 case SNDRV_PCM_TRIGGER_RESUME:
627 rsnd_dai_stream_init(io, substream);
628
629 ret = rsnd_dai_call(init, io, priv);
630 if (ret < 0)
631 goto dai_trigger_end;
632
633 ret = rsnd_dai_call(start, io, priv);
634 if (ret < 0)
635 goto dai_trigger_end;
636
637 ret = rsnd_dai_call(irq, io, priv, 1);
638 if (ret < 0)
639 goto dai_trigger_end;
640
641 break;
642 case SNDRV_PCM_TRIGGER_STOP:
643 case SNDRV_PCM_TRIGGER_SUSPEND:
644 ret = rsnd_dai_call(irq, io, priv, 0);
645
646 ret |= rsnd_dai_call(stop, io, priv);
647
648 ret |= rsnd_dai_call(quit, io, priv);
649
650 rsnd_dai_stream_quit(io);
651 break;
652 default:
653 ret = -EINVAL;
654 }
655
656 dai_trigger_end:
657 spin_unlock_irqrestore(&priv->lock, flags);
658
659 return ret;
660 }
661
662 static int rsnd_soc_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
663 {
664 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
665
666 /* set master/slave audio interface */
667 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
668 case SND_SOC_DAIFMT_CBM_CFM:
669 rdai->clk_master = 0;
670 break;
671 case SND_SOC_DAIFMT_CBS_CFS:
672 rdai->clk_master = 1; /* codec is slave, cpu is master */
673 break;
674 default:
675 return -EINVAL;
676 }
677
678 /* set format */
679 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
680 case SND_SOC_DAIFMT_I2S:
681 rdai->sys_delay = 0;
682 rdai->data_alignment = 0;
683 rdai->frm_clk_inv = 0;
684 break;
685 case SND_SOC_DAIFMT_LEFT_J:
686 rdai->sys_delay = 1;
687 rdai->data_alignment = 0;
688 rdai->frm_clk_inv = 1;
689 break;
690 case SND_SOC_DAIFMT_RIGHT_J:
691 rdai->sys_delay = 1;
692 rdai->data_alignment = 1;
693 rdai->frm_clk_inv = 1;
694 break;
695 }
696
697 /* set clock inversion */
698 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
699 case SND_SOC_DAIFMT_NB_IF:
700 rdai->frm_clk_inv = !rdai->frm_clk_inv;
701 break;
702 case SND_SOC_DAIFMT_IB_NF:
703 rdai->bit_clk_inv = !rdai->bit_clk_inv;
704 break;
705 case SND_SOC_DAIFMT_IB_IF:
706 rdai->bit_clk_inv = !rdai->bit_clk_inv;
707 rdai->frm_clk_inv = !rdai->frm_clk_inv;
708 break;
709 case SND_SOC_DAIFMT_NB_NF:
710 default:
711 break;
712 }
713
714 return 0;
715 }
716
717 static int rsnd_soc_set_dai_tdm_slot(struct snd_soc_dai *dai,
718 u32 tx_mask, u32 rx_mask,
719 int slots, int slot_width)
720 {
721 struct rsnd_priv *priv = rsnd_dai_to_priv(dai);
722 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
723 struct device *dev = rsnd_priv_to_dev(priv);
724
725 switch (slots) {
726 case 2:
727 case 6:
728 case 8:
729 /* TDM Extend Mode */
730 rsnd_rdai_channels_set(rdai, slots);
731 rsnd_rdai_ssi_lane_set(rdai, 1);
732 break;
733 default:
734 dev_err(dev, "unsupported TDM slots (%d)\n", slots);
735 return -EINVAL;
736 }
737
738 return 0;
739 }
740
741 static unsigned int rsnd_soc_hw_channels_list[] = {
742 2, 6, 8,
743 };
744
745 static unsigned int rsnd_soc_hw_rate_list[] = {
746 8000,
747 11025,
748 16000,
749 22050,
750 32000,
751 44100,
752 48000,
753 64000,
754 88200,
755 96000,
756 176400,
757 192000,
758 };
759
760 static int rsnd_soc_hw_rule(struct rsnd_priv *priv,
761 unsigned int *list, int list_num,
762 struct snd_interval *baseline, struct snd_interval *iv)
763 {
764 struct snd_interval p;
765 unsigned int rate;
766 int i;
767
768 snd_interval_any(&p);
769 p.min = UINT_MAX;
770 p.max = 0;
771
772 for (i = 0; i < list_num; i++) {
773
774 if (!snd_interval_test(iv, list[i]))
775 continue;
776
777 rate = rsnd_ssi_clk_query(priv,
778 baseline->min, list[i], NULL);
779 if (rate > 0) {
780 p.min = min(p.min, list[i]);
781 p.max = max(p.max, list[i]);
782 }
783
784 rate = rsnd_ssi_clk_query(priv,
785 baseline->max, list[i], NULL);
786 if (rate > 0) {
787 p.min = min(p.min, list[i]);
788 p.max = max(p.max, list[i]);
789 }
790 }
791
792 return snd_interval_refine(iv, &p);
793 }
794
795 static int rsnd_soc_hw_rule_rate(struct snd_pcm_hw_params *params,
796 struct snd_pcm_hw_rule *rule)
797 {
798 struct snd_interval *ic_ = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
799 struct snd_interval *ir = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
800 struct snd_interval ic;
801 struct snd_soc_dai *dai = rule->private;
802 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
803 struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
804
805 /*
806 * possible sampling rate limitation is same as
807 * 2ch if it supports multi ssi
808 */
809 ic = *ic_;
810 if (1 < rsnd_rdai_ssi_lane_get(rdai)) {
811 ic.min = 2;
812 ic.max = 2;
813 }
814
815 return rsnd_soc_hw_rule(priv, rsnd_soc_hw_rate_list,
816 ARRAY_SIZE(rsnd_soc_hw_rate_list),
817 &ic, ir);
818 }
819
820
821 static int rsnd_soc_hw_rule_channels(struct snd_pcm_hw_params *params,
822 struct snd_pcm_hw_rule *rule)
823 {
824 struct snd_interval *ic_ = hw_param_interval(params, SNDRV_PCM_HW_PARAM_CHANNELS);
825 struct snd_interval *ir = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
826 struct snd_interval ic;
827 struct snd_soc_dai *dai = rule->private;
828 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
829 struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
830
831 /*
832 * possible sampling rate limitation is same as
833 * 2ch if it supports multi ssi
834 */
835 ic = *ic_;
836 if (1 < rsnd_rdai_ssi_lane_get(rdai)) {
837 ic.min = 2;
838 ic.max = 2;
839 }
840
841 return rsnd_soc_hw_rule(priv, rsnd_soc_hw_channels_list,
842 ARRAY_SIZE(rsnd_soc_hw_channels_list),
843 ir, &ic);
844 }
845
846 static const struct snd_pcm_hardware rsnd_pcm_hardware = {
847 .info = SNDRV_PCM_INFO_INTERLEAVED |
848 SNDRV_PCM_INFO_MMAP |
849 SNDRV_PCM_INFO_MMAP_VALID,
850 .buffer_bytes_max = 64 * 1024,
851 .period_bytes_min = 32,
852 .period_bytes_max = 8192,
853 .periods_min = 1,
854 .periods_max = 32,
855 .fifo_size = 256,
856 };
857
858 static int rsnd_soc_dai_startup(struct snd_pcm_substream *substream,
859 struct snd_soc_dai *dai)
860 {
861 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
862 struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
863 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
864 struct snd_pcm_hw_constraint_list *constraint = &rdai->constraint;
865 struct snd_pcm_runtime *runtime = substream->runtime;
866 unsigned int max_channels = rsnd_rdai_channels_get(rdai);
867 int ret;
868 int i;
869
870 /*
871 * Channel Limitation
872 * It depends on Platform design
873 */
874 constraint->list = rsnd_soc_hw_channels_list;
875 constraint->count = 0;
876 constraint->mask = 0;
877
878 for (i = 0; i < ARRAY_SIZE(rsnd_soc_hw_channels_list); i++) {
879 if (rsnd_soc_hw_channels_list[i] > max_channels)
880 break;
881 constraint->count = i + 1;
882 }
883
884 snd_soc_set_runtime_hwparams(substream, &rsnd_pcm_hardware);
885
886 snd_pcm_hw_constraint_list(runtime, 0,
887 SNDRV_PCM_HW_PARAM_CHANNELS, constraint);
888
889 snd_pcm_hw_constraint_integer(runtime,
890 SNDRV_PCM_HW_PARAM_PERIODS);
891
892 /*
893 * Sampling Rate / Channel Limitation
894 * It depends on Clock Master Mode
895 */
896 if (rsnd_rdai_is_clk_master(rdai)) {
897 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_RATE,
898 rsnd_soc_hw_rule_rate, dai,
899 SNDRV_PCM_HW_PARAM_CHANNELS, -1);
900 snd_pcm_hw_rule_add(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
901 rsnd_soc_hw_rule_channels, dai,
902 SNDRV_PCM_HW_PARAM_RATE, -1);
903 }
904
905 /*
906 * call rsnd_dai_call without spinlock
907 */
908 ret = rsnd_dai_call(nolock_start, io, priv);
909 if (ret < 0)
910 rsnd_dai_call(nolock_stop, io, priv);
911
912 return ret;
913 }
914
915 static void rsnd_soc_dai_shutdown(struct snd_pcm_substream *substream,
916 struct snd_soc_dai *dai)
917 {
918 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
919 struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
920 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
921
922 /*
923 * call rsnd_dai_call without spinlock
924 */
925 rsnd_dai_call(nolock_stop, io, priv);
926 }
927
928 static const struct snd_soc_dai_ops rsnd_soc_dai_ops = {
929 .startup = rsnd_soc_dai_startup,
930 .shutdown = rsnd_soc_dai_shutdown,
931 .trigger = rsnd_soc_dai_trigger,
932 .set_fmt = rsnd_soc_dai_set_fmt,
933 .set_tdm_slot = rsnd_soc_set_dai_tdm_slot,
934 };
935
936 void rsnd_parse_connect_common(struct rsnd_dai *rdai,
937 struct rsnd_mod* (*mod_get)(struct rsnd_priv *priv, int id),
938 struct device_node *node,
939 struct device_node *playback,
940 struct device_node *capture)
941 {
942 struct rsnd_priv *priv = rsnd_rdai_to_priv(rdai);
943 struct device_node *np;
944 struct rsnd_mod *mod;
945 int i;
946
947 if (!node)
948 return;
949
950 i = 0;
951 for_each_child_of_node(node, np) {
952 mod = mod_get(priv, i);
953 if (np == playback)
954 rsnd_dai_connect(mod, &rdai->playback, mod->type);
955 if (np == capture)
956 rsnd_dai_connect(mod, &rdai->capture, mod->type);
957 i++;
958 }
959
960 of_node_put(node);
961 }
962
963 static struct device_node *rsnd_dai_of_node(struct rsnd_priv *priv,
964 int *is_graph)
965 {
966 struct device *dev = rsnd_priv_to_dev(priv);
967 struct device_node *np = dev->of_node;
968 struct device_node *dai_node;
969 struct device_node *ret;
970
971 *is_graph = 0;
972
973 /*
974 * parse both previous dai (= rcar_sound,dai), and
975 * graph dai (= ports/port)
976 */
977 dai_node = of_get_child_by_name(np, RSND_NODE_DAI);
978 if (dai_node) {
979 ret = dai_node;
980 goto of_node_compatible;
981 }
982
983 ret = np;
984
985 dai_node = of_graph_get_next_endpoint(np, NULL);
986 if (dai_node)
987 goto of_node_graph;
988
989 return NULL;
990
991 of_node_graph:
992 *is_graph = 1;
993 of_node_compatible:
994 of_node_put(dai_node);
995
996 return ret;
997 }
998
999 static void __rsnd_dai_probe(struct rsnd_priv *priv,
1000 struct device_node *dai_np,
1001 int dai_i, int is_graph)
1002 {
1003 struct device_node *playback, *capture;
1004 struct rsnd_dai_stream *io_playback;
1005 struct rsnd_dai_stream *io_capture;
1006 struct snd_soc_dai_driver *drv;
1007 struct rsnd_dai *rdai;
1008 struct device *dev = rsnd_priv_to_dev(priv);
1009 int io_i;
1010
1011 rdai = rsnd_rdai_get(priv, dai_i);
1012 drv = priv->daidrv + dai_i;
1013 io_playback = &rdai->playback;
1014 io_capture = &rdai->capture;
1015
1016 snprintf(rdai->name, RSND_DAI_NAME_SIZE, "rsnd-dai.%d", dai_i);
1017
1018 rdai->priv = priv;
1019 drv->name = rdai->name;
1020 drv->ops = &rsnd_soc_dai_ops;
1021
1022 snprintf(rdai->playback.name, RSND_DAI_NAME_SIZE,
1023 "DAI%d Playback", dai_i);
1024 drv->playback.rates = RSND_RATES;
1025 drv->playback.formats = RSND_FMTS;
1026 drv->playback.channels_min = 2;
1027 drv->playback.channels_max = 8;
1028 drv->playback.stream_name = rdai->playback.name;
1029
1030 snprintf(rdai->capture.name, RSND_DAI_NAME_SIZE,
1031 "DAI%d Capture", dai_i);
1032 drv->capture.rates = RSND_RATES;
1033 drv->capture.formats = RSND_FMTS;
1034 drv->capture.channels_min = 2;
1035 drv->capture.channels_max = 8;
1036 drv->capture.stream_name = rdai->capture.name;
1037
1038 rdai->playback.rdai = rdai;
1039 rdai->capture.rdai = rdai;
1040 rsnd_rdai_channels_set(rdai, 2); /* default 2ch */
1041 rsnd_rdai_ssi_lane_set(rdai, 1); /* default 1lane */
1042
1043 for (io_i = 0;; io_i++) {
1044 playback = of_parse_phandle(dai_np, "playback", io_i);
1045 capture = of_parse_phandle(dai_np, "capture", io_i);
1046
1047 if (!playback && !capture)
1048 break;
1049
1050 rsnd_parse_connect_ssi(rdai, playback, capture);
1051 rsnd_parse_connect_src(rdai, playback, capture);
1052 rsnd_parse_connect_ctu(rdai, playback, capture);
1053 rsnd_parse_connect_mix(rdai, playback, capture);
1054 rsnd_parse_connect_dvc(rdai, playback, capture);
1055
1056 of_node_put(playback);
1057 of_node_put(capture);
1058 }
1059
1060 dev_dbg(dev, "%s (%s/%s)\n", rdai->name,
1061 rsnd_io_to_mod_ssi(io_playback) ? "play" : " -- ",
1062 rsnd_io_to_mod_ssi(io_capture) ? "capture" : " -- ");
1063 }
1064
1065 static int rsnd_dai_probe(struct rsnd_priv *priv)
1066 {
1067 struct device_node *dai_node;
1068 struct device_node *dai_np;
1069 struct snd_soc_dai_driver *rdrv;
1070 struct device *dev = rsnd_priv_to_dev(priv);
1071 struct rsnd_dai *rdai;
1072 int nr;
1073 int is_graph;
1074 int dai_i;
1075
1076 dai_node = rsnd_dai_of_node(priv, &is_graph);
1077 if (is_graph)
1078 nr = of_graph_get_endpoint_count(dai_node);
1079 else
1080 nr = of_get_child_count(dai_node);
1081
1082 if (!nr)
1083 return -EINVAL;
1084
1085 rdrv = devm_kzalloc(dev, sizeof(*rdrv) * nr, GFP_KERNEL);
1086 rdai = devm_kzalloc(dev, sizeof(*rdai) * nr, GFP_KERNEL);
1087 if (!rdrv || !rdai)
1088 return -ENOMEM;
1089
1090 priv->rdai_nr = nr;
1091 priv->daidrv = rdrv;
1092 priv->rdai = rdai;
1093
1094 /*
1095 * parse all dai
1096 */
1097 dai_i = 0;
1098 if (is_graph) {
1099 for_each_endpoint_of_node(dai_node, dai_np) {
1100 __rsnd_dai_probe(priv, dai_np, dai_i, is_graph);
1101 rsnd_ssi_parse_hdmi_connection(priv, dai_np, dai_i);
1102 dai_i++;
1103 }
1104 } else {
1105 for_each_child_of_node(dai_node, dai_np)
1106 __rsnd_dai_probe(priv, dai_np, dai_i++, is_graph);
1107 }
1108
1109 return 0;
1110 }
1111
1112 /*
1113 * pcm ops
1114 */
1115 static int rsnd_hw_params(struct snd_pcm_substream *substream,
1116 struct snd_pcm_hw_params *hw_params)
1117 {
1118 struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
1119 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1120 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
1121 int ret;
1122
1123 ret = rsnd_dai_call(hw_params, io, substream, hw_params);
1124 if (ret)
1125 return ret;
1126
1127 return snd_pcm_lib_malloc_pages(substream,
1128 params_buffer_bytes(hw_params));
1129 }
1130
1131 static snd_pcm_uframes_t rsnd_pointer(struct snd_pcm_substream *substream)
1132 {
1133 struct snd_soc_dai *dai = rsnd_substream_to_dai(substream);
1134 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1135 struct rsnd_dai_stream *io = rsnd_rdai_to_io(rdai, substream);
1136 snd_pcm_uframes_t pointer = 0;
1137
1138 rsnd_dai_call(pointer, io, &pointer);
1139
1140 return pointer;
1141 }
1142
1143 static const struct snd_pcm_ops rsnd_pcm_ops = {
1144 .ioctl = snd_pcm_lib_ioctl,
1145 .hw_params = rsnd_hw_params,
1146 .hw_free = snd_pcm_lib_free_pages,
1147 .pointer = rsnd_pointer,
1148 };
1149
1150 /*
1151 * snd_kcontrol
1152 */
1153 static int rsnd_kctrl_info(struct snd_kcontrol *kctrl,
1154 struct snd_ctl_elem_info *uinfo)
1155 {
1156 struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl);
1157
1158 if (cfg->texts) {
1159 uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
1160 uinfo->count = cfg->size;
1161 uinfo->value.enumerated.items = cfg->max;
1162 if (uinfo->value.enumerated.item >= cfg->max)
1163 uinfo->value.enumerated.item = cfg->max - 1;
1164 strlcpy(uinfo->value.enumerated.name,
1165 cfg->texts[uinfo->value.enumerated.item],
1166 sizeof(uinfo->value.enumerated.name));
1167 } else {
1168 uinfo->count = cfg->size;
1169 uinfo->value.integer.min = 0;
1170 uinfo->value.integer.max = cfg->max;
1171 uinfo->type = (cfg->max == 1) ?
1172 SNDRV_CTL_ELEM_TYPE_BOOLEAN :
1173 SNDRV_CTL_ELEM_TYPE_INTEGER;
1174 }
1175
1176 return 0;
1177 }
1178
1179 static int rsnd_kctrl_get(struct snd_kcontrol *kctrl,
1180 struct snd_ctl_elem_value *uc)
1181 {
1182 struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl);
1183 int i;
1184
1185 for (i = 0; i < cfg->size; i++)
1186 if (cfg->texts)
1187 uc->value.enumerated.item[i] = cfg->val[i];
1188 else
1189 uc->value.integer.value[i] = cfg->val[i];
1190
1191 return 0;
1192 }
1193
1194 static int rsnd_kctrl_put(struct snd_kcontrol *kctrl,
1195 struct snd_ctl_elem_value *uc)
1196 {
1197 struct rsnd_kctrl_cfg *cfg = snd_kcontrol_chip(kctrl);
1198 int i, change = 0;
1199
1200 if (!cfg->accept(cfg->io))
1201 return 0;
1202
1203 for (i = 0; i < cfg->size; i++) {
1204 if (cfg->texts) {
1205 change |= (uc->value.enumerated.item[i] != cfg->val[i]);
1206 cfg->val[i] = uc->value.enumerated.item[i];
1207 } else {
1208 change |= (uc->value.integer.value[i] != cfg->val[i]);
1209 cfg->val[i] = uc->value.integer.value[i];
1210 }
1211 }
1212
1213 if (change && cfg->update)
1214 cfg->update(cfg->io, cfg->mod);
1215
1216 return change;
1217 }
1218
1219 int rsnd_kctrl_accept_anytime(struct rsnd_dai_stream *io)
1220 {
1221 return 1;
1222 }
1223
1224 int rsnd_kctrl_accept_runtime(struct rsnd_dai_stream *io)
1225 {
1226 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
1227
1228 return !!runtime;
1229 }
1230
1231 struct rsnd_kctrl_cfg *rsnd_kctrl_init_m(struct rsnd_kctrl_cfg_m *cfg)
1232 {
1233 cfg->cfg.val = cfg->val;
1234
1235 return &cfg->cfg;
1236 }
1237
1238 struct rsnd_kctrl_cfg *rsnd_kctrl_init_s(struct rsnd_kctrl_cfg_s *cfg)
1239 {
1240 cfg->cfg.val = &cfg->val;
1241
1242 return &cfg->cfg;
1243 }
1244
1245 int rsnd_kctrl_new(struct rsnd_mod *mod,
1246 struct rsnd_dai_stream *io,
1247 struct snd_soc_pcm_runtime *rtd,
1248 const unsigned char *name,
1249 int (*accept)(struct rsnd_dai_stream *io),
1250 void (*update)(struct rsnd_dai_stream *io,
1251 struct rsnd_mod *mod),
1252 struct rsnd_kctrl_cfg *cfg,
1253 const char * const *texts,
1254 int size,
1255 u32 max)
1256 {
1257 struct snd_card *card = rtd->card->snd_card;
1258 struct snd_kcontrol *kctrl;
1259 struct snd_kcontrol_new knew = {
1260 .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
1261 .name = name,
1262 .info = rsnd_kctrl_info,
1263 .index = rtd->num,
1264 .get = rsnd_kctrl_get,
1265 .put = rsnd_kctrl_put,
1266 };
1267 int ret;
1268
1269 if (size > RSND_MAX_CHANNELS)
1270 return -EINVAL;
1271
1272 kctrl = snd_ctl_new1(&knew, cfg);
1273 if (!kctrl)
1274 return -ENOMEM;
1275
1276 ret = snd_ctl_add(card, kctrl);
1277 if (ret < 0)
1278 return ret;
1279
1280 cfg->texts = texts;
1281 cfg->max = max;
1282 cfg->size = size;
1283 cfg->accept = accept;
1284 cfg->update = update;
1285 cfg->card = card;
1286 cfg->kctrl = kctrl;
1287 cfg->io = io;
1288 cfg->mod = mod;
1289
1290 return 0;
1291 }
1292
1293 /*
1294 * snd_soc_platform
1295 */
1296
1297 #define PREALLOC_BUFFER (32 * 1024)
1298 #define PREALLOC_BUFFER_MAX (32 * 1024)
1299
1300 static int rsnd_pcm_new(struct snd_soc_pcm_runtime *rtd)
1301 {
1302 struct snd_soc_dai *dai = rtd->cpu_dai;
1303 struct rsnd_dai *rdai = rsnd_dai_to_rdai(dai);
1304 int ret;
1305
1306 ret = rsnd_dai_call(pcm_new, &rdai->playback, rtd);
1307 if (ret)
1308 return ret;
1309
1310 ret = rsnd_dai_call(pcm_new, &rdai->capture, rtd);
1311 if (ret)
1312 return ret;
1313
1314 return snd_pcm_lib_preallocate_pages_for_all(
1315 rtd->pcm,
1316 SNDRV_DMA_TYPE_CONTINUOUS,
1317 snd_dma_continuous_data(GFP_KERNEL),
1318 PREALLOC_BUFFER, PREALLOC_BUFFER_MAX);
1319 }
1320
1321 static const struct snd_soc_platform_driver rsnd_soc_platform = {
1322 .ops = &rsnd_pcm_ops,
1323 .pcm_new = rsnd_pcm_new,
1324 };
1325
1326 static const struct snd_soc_component_driver rsnd_soc_component = {
1327 .name = "rsnd",
1328 };
1329
1330 static int rsnd_rdai_continuance_probe(struct rsnd_priv *priv,
1331 struct rsnd_dai_stream *io)
1332 {
1333 int ret;
1334
1335 ret = rsnd_dai_call(probe, io, priv);
1336 if (ret == -EAGAIN) {
1337 struct rsnd_mod *ssi_mod = rsnd_io_to_mod_ssi(io);
1338 struct rsnd_mod *mod;
1339 int i;
1340
1341 /*
1342 * Fallback to PIO mode
1343 */
1344
1345 /*
1346 * call "remove" for SSI/SRC/DVC
1347 * SSI will be switch to PIO mode if it was DMA mode
1348 * see
1349 * rsnd_dma_init()
1350 * rsnd_ssi_fallback()
1351 */
1352 rsnd_dai_call(remove, io, priv);
1353
1354 /*
1355 * remove all mod from io
1356 * and, re connect ssi
1357 */
1358 for_each_rsnd_mod(i, mod, io)
1359 rsnd_dai_disconnect(mod, io, i);
1360 rsnd_dai_connect(ssi_mod, io, RSND_MOD_SSI);
1361
1362 /*
1363 * fallback
1364 */
1365 rsnd_dai_call(fallback, io, priv);
1366
1367 /*
1368 * retry to "probe".
1369 * DAI has SSI which is PIO mode only now.
1370 */
1371 ret = rsnd_dai_call(probe, io, priv);
1372 }
1373
1374 return ret;
1375 }
1376
1377 /*
1378 * rsnd probe
1379 */
1380 static int rsnd_probe(struct platform_device *pdev)
1381 {
1382 struct rsnd_priv *priv;
1383 struct device *dev = &pdev->dev;
1384 struct rsnd_dai *rdai;
1385 int (*probe_func[])(struct rsnd_priv *priv) = {
1386 rsnd_gen_probe,
1387 rsnd_dma_probe,
1388 rsnd_ssi_probe,
1389 rsnd_ssiu_probe,
1390 rsnd_src_probe,
1391 rsnd_ctu_probe,
1392 rsnd_mix_probe,
1393 rsnd_dvc_probe,
1394 rsnd_cmd_probe,
1395 rsnd_adg_probe,
1396 rsnd_dai_probe,
1397 };
1398 int ret, i;
1399
1400 /*
1401 * init priv data
1402 */
1403 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
1404 if (!priv)
1405 return -ENODEV;
1406
1407 priv->pdev = pdev;
1408 priv->flags = (unsigned long)of_device_get_match_data(dev);
1409 spin_lock_init(&priv->lock);
1410
1411 /*
1412 * init each module
1413 */
1414 for (i = 0; i < ARRAY_SIZE(probe_func); i++) {
1415 ret = probe_func[i](priv);
1416 if (ret)
1417 return ret;
1418 }
1419
1420 for_each_rsnd_dai(rdai, priv, i) {
1421 ret = rsnd_rdai_continuance_probe(priv, &rdai->playback);
1422 if (ret)
1423 goto exit_snd_probe;
1424
1425 ret = rsnd_rdai_continuance_probe(priv, &rdai->capture);
1426 if (ret)
1427 goto exit_snd_probe;
1428 }
1429
1430 dev_set_drvdata(dev, priv);
1431
1432 /*
1433 * asoc register
1434 */
1435 ret = snd_soc_register_platform(dev, &rsnd_soc_platform);
1436 if (ret < 0) {
1437 dev_err(dev, "cannot snd soc register\n");
1438 return ret;
1439 }
1440
1441 ret = snd_soc_register_component(dev, &rsnd_soc_component,
1442 priv->daidrv, rsnd_rdai_nr(priv));
1443 if (ret < 0) {
1444 dev_err(dev, "cannot snd dai register\n");
1445 goto exit_snd_soc;
1446 }
1447
1448 pm_runtime_enable(dev);
1449
1450 dev_info(dev, "probed\n");
1451 return ret;
1452
1453 exit_snd_soc:
1454 snd_soc_unregister_platform(dev);
1455 exit_snd_probe:
1456 for_each_rsnd_dai(rdai, priv, i) {
1457 rsnd_dai_call(remove, &rdai->playback, priv);
1458 rsnd_dai_call(remove, &rdai->capture, priv);
1459 }
1460
1461 return ret;
1462 }
1463
1464 static int rsnd_remove(struct platform_device *pdev)
1465 {
1466 struct rsnd_priv *priv = dev_get_drvdata(&pdev->dev);
1467 struct rsnd_dai *rdai;
1468 void (*remove_func[])(struct rsnd_priv *priv) = {
1469 rsnd_ssi_remove,
1470 rsnd_ssiu_remove,
1471 rsnd_src_remove,
1472 rsnd_ctu_remove,
1473 rsnd_mix_remove,
1474 rsnd_dvc_remove,
1475 rsnd_cmd_remove,
1476 rsnd_adg_remove,
1477 };
1478 int ret = 0, i;
1479
1480 pm_runtime_disable(&pdev->dev);
1481
1482 for_each_rsnd_dai(rdai, priv, i) {
1483 ret |= rsnd_dai_call(remove, &rdai->playback, priv);
1484 ret |= rsnd_dai_call(remove, &rdai->capture, priv);
1485 }
1486
1487 for (i = 0; i < ARRAY_SIZE(remove_func); i++)
1488 remove_func[i](priv);
1489
1490 snd_soc_unregister_component(&pdev->dev);
1491 snd_soc_unregister_platform(&pdev->dev);
1492
1493 return ret;
1494 }
1495
1496 static int rsnd_suspend(struct device *dev)
1497 {
1498 struct rsnd_priv *priv = dev_get_drvdata(dev);
1499
1500 rsnd_adg_clk_disable(priv);
1501
1502 return 0;
1503 }
1504
1505 static int rsnd_resume(struct device *dev)
1506 {
1507 struct rsnd_priv *priv = dev_get_drvdata(dev);
1508
1509 rsnd_adg_clk_enable(priv);
1510
1511 return 0;
1512 }
1513
1514 static const struct dev_pm_ops rsnd_pm_ops = {
1515 .suspend = rsnd_suspend,
1516 .resume = rsnd_resume,
1517 };
1518
1519 static struct platform_driver rsnd_driver = {
1520 .driver = {
1521 .name = "rcar_sound",
1522 .pm = &rsnd_pm_ops,
1523 .of_match_table = rsnd_of_match,
1524 },
1525 .probe = rsnd_probe,
1526 .remove = rsnd_remove,
1527 };
1528 module_platform_driver(rsnd_driver);
1529
1530 MODULE_LICENSE("GPL");
1531 MODULE_DESCRIPTION("Renesas R-Car audio driver");
1532 MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
1533 MODULE_ALIAS("platform:rcar-pcm-audio");