1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // Renesas R-Car SRC support
4 //
5 // Copyright (C) 2013 Renesas Solutions Corp.
6 // Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
7
8 /*
9 * You can use Synchronous Sampling Rate Convert (if no DVC)
10 *
11 * amixer set "SRC Out Rate" on
12 * aplay xxx.wav &
13 * amixer set "SRC Out Rate" 96000 // convert rate to 96000Hz
14 * amixer set "SRC Out Rate" 22050 // convert rate to 22050Hz
15 */
16
17 /*
18 * you can enable below define if you don't need
19 * SSI interrupt status debug message when debugging
20 * see rsnd_print_irq_status()
21 *
22 * #define RSND_DEBUG_NO_IRQ_STATUS 1
23 */
24
25 #include "rsnd.h"
26
27 #define SRC_NAME "src"
28
29 /* SCU_SYSTEM_STATUS0/1 */
30 #define OUF_SRC(id) ((1 << (id + 16)) | (1 << id))
31
32 struct rsnd_src {
33 struct rsnd_mod mod;
34 struct rsnd_mod *dma;
35 struct rsnd_kctrl_cfg_s sen; /* sync convert enable */
36 struct rsnd_kctrl_cfg_s sync; /* sync convert */
37 int irq;
38 };
39
40 #define RSND_SRC_NAME_SIZE 16
41
42 #define rsnd_src_get(priv, id) ((struct rsnd_src *)(priv->src) + id)
43 #define rsnd_src_nr(priv) ((priv)->src_nr)
44 #define rsnd_src_sync_is_enabled(mod) (rsnd_mod_to_src(mod)->sen.val)
45
46 #define rsnd_mod_to_src(_mod) \
47 container_of((_mod), struct rsnd_src, mod)
48
49 #define for_each_rsnd_src(pos, priv, i) \
50 for ((i) = 0; \
51 ((i) < rsnd_src_nr(priv)) && \
52 ((pos) = (struct rsnd_src *)(priv)->src + i); \
53 i++)
54
55
56 /*
57 * image of SRC (Sampling Rate Converter)
58 *
59 * 96kHz <-> +-----+ 48kHz +-----+ 48kHz +-------+
60 * 48kHz <-> | SRC | <------> | SSI | <-----> | codec |
61 * 44.1kHz <-> +-----+ +-----+ +-------+
62 * ...
63 *
64 */
65
rsnd_src_activation(struct rsnd_mod * mod)66 static void rsnd_src_activation(struct rsnd_mod *mod)
67 {
68 rsnd_mod_write(mod, SRC_SWRSR, 0);
69 rsnd_mod_write(mod, SRC_SWRSR, 1);
70 }
71
rsnd_src_halt(struct rsnd_mod * mod)72 static void rsnd_src_halt(struct rsnd_mod *mod)
73 {
74 rsnd_mod_write(mod, SRC_SRCIR, 1);
75 rsnd_mod_write(mod, SRC_SWRSR, 0);
76 }
77
rsnd_src_dma_req(struct rsnd_dai_stream * io,struct rsnd_mod * mod)78 static struct dma_chan *rsnd_src_dma_req(struct rsnd_dai_stream *io,
79 struct rsnd_mod *mod)
80 {
81 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
82 int is_play = rsnd_io_is_play(io);
83
84 return rsnd_dma_request_channel(rsnd_src_of_node(priv),
85 SRC_NAME, mod,
86 is_play ? "rx" : "tx");
87 }
88
rsnd_src_convert_rate(struct rsnd_dai_stream * io,struct rsnd_mod * mod)89 static u32 rsnd_src_convert_rate(struct rsnd_dai_stream *io,
90 struct rsnd_mod *mod)
91 {
92 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
93 struct rsnd_src *src = rsnd_mod_to_src(mod);
94 u32 convert_rate;
95
96 if (!runtime)
97 return 0;
98
99 if (!rsnd_src_sync_is_enabled(mod))
100 return rsnd_io_converted_rate(io);
101
102 convert_rate = src->sync.val;
103
104 if (!convert_rate)
105 convert_rate = rsnd_io_converted_rate(io);
106
107 if (!convert_rate)
108 convert_rate = runtime->rate;
109
110 return convert_rate;
111 }
112
rsnd_src_get_rate(struct rsnd_priv * priv,struct rsnd_dai_stream * io,int is_in)113 unsigned int rsnd_src_get_rate(struct rsnd_priv *priv,
114 struct rsnd_dai_stream *io,
115 int is_in)
116 {
117 struct rsnd_mod *src_mod = rsnd_io_to_mod_src(io);
118 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
119 unsigned int rate = 0;
120 int is_play = rsnd_io_is_play(io);
121
122 /*
123 * Playback
124 * runtime_rate -> [SRC] -> convert_rate
125 *
126 * Capture
127 * convert_rate -> [SRC] -> runtime_rate
128 */
129
130 if (is_play == is_in)
131 return runtime->rate;
132
133 /*
134 * return convert rate if SRC is used,
135 * otherwise, return runtime->rate as usual
136 */
137 if (src_mod)
138 rate = rsnd_src_convert_rate(io, src_mod);
139
140 if (!rate)
141 rate = runtime->rate;
142
143 return rate;
144 }
145
146 static const u32 bsdsr_table_pattern1[] = {
147 0x01800000, /* 6 - 1/6 */
148 0x01000000, /* 6 - 1/4 */
149 0x00c00000, /* 6 - 1/3 */
150 0x00800000, /* 6 - 1/2 */
151 0x00600000, /* 6 - 2/3 */
152 0x00400000, /* 6 - 1 */
153 };
154
155 static const u32 bsdsr_table_pattern2[] = {
156 0x02400000, /* 6 - 1/6 */
157 0x01800000, /* 6 - 1/4 */
158 0x01200000, /* 6 - 1/3 */
159 0x00c00000, /* 6 - 1/2 */
160 0x00900000, /* 6 - 2/3 */
161 0x00600000, /* 6 - 1 */
162 };
163
164 static const u32 bsisr_table[] = {
165 0x00100060, /* 6 - 1/6 */
166 0x00100040, /* 6 - 1/4 */
167 0x00100030, /* 6 - 1/3 */
168 0x00100020, /* 6 - 1/2 */
169 0x00100020, /* 6 - 2/3 */
170 0x00100020, /* 6 - 1 */
171 };
172
173 static const u32 chan288888[] = {
174 0x00000006, /* 1 to 2 */
175 0x000001fe, /* 1 to 8 */
176 0x000001fe, /* 1 to 8 */
177 0x000001fe, /* 1 to 8 */
178 0x000001fe, /* 1 to 8 */
179 0x000001fe, /* 1 to 8 */
180 };
181
182 static const u32 chan244888[] = {
183 0x00000006, /* 1 to 2 */
184 0x0000001e, /* 1 to 4 */
185 0x0000001e, /* 1 to 4 */
186 0x000001fe, /* 1 to 8 */
187 0x000001fe, /* 1 to 8 */
188 0x000001fe, /* 1 to 8 */
189 };
190
191 static const u32 chan222222[] = {
192 0x00000006, /* 1 to 2 */
193 0x00000006, /* 1 to 2 */
194 0x00000006, /* 1 to 2 */
195 0x00000006, /* 1 to 2 */
196 0x00000006, /* 1 to 2 */
197 0x00000006, /* 1 to 2 */
198 };
199
rsnd_src_set_convert_rate(struct rsnd_dai_stream * io,struct rsnd_mod * mod)200 static void rsnd_src_set_convert_rate(struct rsnd_dai_stream *io,
201 struct rsnd_mod *mod)
202 {
203 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
204 struct device *dev = rsnd_priv_to_dev(priv);
205 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
206 int is_play = rsnd_io_is_play(io);
207 int use_src = 0;
208 u32 fin, fout;
209 u32 ifscr, fsrate, adinr;
210 u32 cr, route;
211 u32 i_busif, o_busif, tmp;
212 const u32 *bsdsr_table;
213 const u32 *chptn;
214 uint ratio;
215 int chan;
216 int idx;
217
218 if (!runtime)
219 return;
220
221 fin = rsnd_src_get_in_rate(priv, io);
222 fout = rsnd_src_get_out_rate(priv, io);
223
224 chan = rsnd_runtime_channel_original(io);
225
226 /* 6 - 1/6 are very enough ratio for SRC_BSDSR */
227 if (fin == fout)
228 ratio = 0;
229 else if (fin > fout)
230 ratio = 100 * fin / fout;
231 else
232 ratio = 100 * fout / fin;
233
234 if (ratio > 600) {
235 dev_err(dev, "FSO/FSI ratio error\n");
236 return;
237 }
238
239 use_src = (fin != fout) | rsnd_src_sync_is_enabled(mod);
240
241 /*
242 * SRC_ADINR
243 */
244 adinr = rsnd_get_adinr_bit(mod, io) | chan;
245
246 /*
247 * SRC_IFSCR / SRC_IFSVR
248 */
249 ifscr = 0;
250 fsrate = 0;
251 if (use_src) {
252 u64 n;
253
254 ifscr = 1;
255 n = (u64)0x0400000 * fin;
256 do_div(n, fout);
257 fsrate = n;
258 }
259
260 /*
261 * SRC_SRCCR / SRC_ROUTE_MODE0
262 */
263 cr = 0x00011110;
264 route = 0x0;
265 if (use_src) {
266 route = 0x1;
267
268 if (rsnd_src_sync_is_enabled(mod)) {
269 cr |= 0x1;
270 route |= rsnd_io_is_play(io) ?
271 (0x1 << 24) : (0x1 << 25);
272 }
273 }
274
275 /*
276 * SRC_BSDSR / SRC_BSISR
277 *
278 * see
279 * Combination of Register Setting Related to
280 * FSO/FSI Ratio and Channel, Latency
281 */
282 switch (rsnd_mod_id(mod)) {
283 case 0:
284 chptn = chan288888;
285 bsdsr_table = bsdsr_table_pattern1;
286 break;
287 case 1:
288 case 3:
289 case 4:
290 chptn = chan244888;
291 bsdsr_table = bsdsr_table_pattern1;
292 break;
293 case 2:
294 case 9:
295 chptn = chan222222;
296 bsdsr_table = bsdsr_table_pattern1;
297 break;
298 case 5:
299 case 6:
300 case 7:
301 case 8:
302 chptn = chan222222;
303 bsdsr_table = bsdsr_table_pattern2;
304 break;
305 default:
306 goto convert_rate_err;
307 }
308
309 /*
310 * E3 need to overwrite
311 */
312 if (rsnd_is_e3(priv))
313 switch (rsnd_mod_id(mod)) {
314 case 0:
315 case 4:
316 chptn = chan222222;
317 }
318
319 for (idx = 0; idx < ARRAY_SIZE(chan222222); idx++)
320 if (chptn[idx] & (1 << chan))
321 break;
322
323 if (chan > 8 ||
324 idx >= ARRAY_SIZE(chan222222))
325 goto convert_rate_err;
326
327 /* BUSIF_MODE */
328 tmp = rsnd_get_busif_shift(io, mod);
329 i_busif = ( is_play ? tmp : 0) | 1;
330 o_busif = (!is_play ? tmp : 0) | 1;
331
332 rsnd_mod_write(mod, SRC_ROUTE_MODE0, route);
333
334 rsnd_mod_write(mod, SRC_SRCIR, 1); /* initialize */
335 rsnd_mod_write(mod, SRC_ADINR, adinr);
336 rsnd_mod_write(mod, SRC_IFSCR, ifscr);
337 rsnd_mod_write(mod, SRC_IFSVR, fsrate);
338 rsnd_mod_write(mod, SRC_SRCCR, cr);
339 rsnd_mod_write(mod, SRC_BSDSR, bsdsr_table[idx]);
340 rsnd_mod_write(mod, SRC_BSISR, bsisr_table[idx]);
341 rsnd_mod_write(mod, SRC_SRCIR, 0); /* cancel initialize */
342
343 rsnd_mod_write(mod, SRC_I_BUSIF_MODE, i_busif);
344 rsnd_mod_write(mod, SRC_O_BUSIF_MODE, o_busif);
345
346 rsnd_mod_write(mod, SRC_BUSIF_DALIGN, rsnd_get_dalign(mod, io));
347
348 rsnd_adg_set_src_timesel_gen2(mod, io, fin, fout);
349
350 return;
351
352 convert_rate_err:
353 dev_err(dev, "unknown BSDSR/BSDIR settings\n");
354 }
355
rsnd_src_irq(struct rsnd_mod * mod,struct rsnd_dai_stream * io,struct rsnd_priv * priv,int enable)356 static int rsnd_src_irq(struct rsnd_mod *mod,
357 struct rsnd_dai_stream *io,
358 struct rsnd_priv *priv,
359 int enable)
360 {
361 struct rsnd_src *src = rsnd_mod_to_src(mod);
362 u32 sys_int_val, int_val, sys_int_mask;
363 int irq = src->irq;
364 int id = rsnd_mod_id(mod);
365
366 sys_int_val =
367 sys_int_mask = OUF_SRC(id);
368 int_val = 0x3300;
369
370 /*
371 * IRQ is not supported on non-DT
372 * see
373 * rsnd_src_probe_()
374 */
375 if ((irq <= 0) || !enable) {
376 sys_int_val = 0;
377 int_val = 0;
378 }
379
380 /*
381 * WORKAROUND
382 *
383 * ignore over flow error when rsnd_src_sync_is_enabled()
384 */
385 if (rsnd_src_sync_is_enabled(mod))
386 sys_int_val = sys_int_val & 0xffff;
387
388 rsnd_mod_write(mod, SRC_INT_ENABLE0, int_val);
389 rsnd_mod_bset(mod, SCU_SYS_INT_EN0, sys_int_mask, sys_int_val);
390 rsnd_mod_bset(mod, SCU_SYS_INT_EN1, sys_int_mask, sys_int_val);
391
392 return 0;
393 }
394
rsnd_src_status_clear(struct rsnd_mod * mod)395 static void rsnd_src_status_clear(struct rsnd_mod *mod)
396 {
397 u32 val = OUF_SRC(rsnd_mod_id(mod));
398
399 rsnd_mod_write(mod, SCU_SYS_STATUS0, val);
400 rsnd_mod_write(mod, SCU_SYS_STATUS1, val);
401 }
402
rsnd_src_error_occurred(struct rsnd_mod * mod)403 static bool rsnd_src_error_occurred(struct rsnd_mod *mod)
404 {
405 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
406 struct device *dev = rsnd_priv_to_dev(priv);
407 u32 val0, val1;
408 u32 status0, status1;
409 bool ret = false;
410
411 val0 = val1 = OUF_SRC(rsnd_mod_id(mod));
412
413 /*
414 * WORKAROUND
415 *
416 * ignore over flow error when rsnd_src_sync_is_enabled()
417 */
418 if (rsnd_src_sync_is_enabled(mod))
419 val0 = val0 & 0xffff;
420
421 status0 = rsnd_mod_read(mod, SCU_SYS_STATUS0);
422 status1 = rsnd_mod_read(mod, SCU_SYS_STATUS1);
423 if ((status0 & val0) || (status1 & val1)) {
424 rsnd_print_irq_status(dev, "%s err status : 0x%08x, 0x%08x\n",
425 rsnd_mod_name(mod), status0, status1);
426
427 ret = true;
428 }
429
430 return ret;
431 }
432
rsnd_src_start(struct rsnd_mod * mod,struct rsnd_dai_stream * io,struct rsnd_priv * priv)433 static int rsnd_src_start(struct rsnd_mod *mod,
434 struct rsnd_dai_stream *io,
435 struct rsnd_priv *priv)
436 {
437 u32 val;
438
439 /*
440 * WORKAROUND
441 *
442 * Enable SRC output if you want to use sync convert together with DVC
443 */
444 val = (rsnd_io_to_mod_dvc(io) && !rsnd_src_sync_is_enabled(mod)) ?
445 0x01 : 0x11;
446
447 rsnd_mod_write(mod, SRC_CTRL, val);
448
449 return 0;
450 }
451
rsnd_src_stop(struct rsnd_mod * mod,struct rsnd_dai_stream * io,struct rsnd_priv * priv)452 static int rsnd_src_stop(struct rsnd_mod *mod,
453 struct rsnd_dai_stream *io,
454 struct rsnd_priv *priv)
455 {
456 rsnd_mod_write(mod, SRC_CTRL, 0);
457
458 return 0;
459 }
460
rsnd_src_init(struct rsnd_mod * mod,struct rsnd_dai_stream * io,struct rsnd_priv * priv)461 static int rsnd_src_init(struct rsnd_mod *mod,
462 struct rsnd_dai_stream *io,
463 struct rsnd_priv *priv)
464 {
465 struct rsnd_src *src = rsnd_mod_to_src(mod);
466
467 /* reset sync convert_rate */
468 src->sync.val = 0;
469
470 rsnd_mod_power_on(mod);
471
472 rsnd_src_activation(mod);
473
474 rsnd_src_set_convert_rate(io, mod);
475
476 rsnd_src_status_clear(mod);
477
478 return 0;
479 }
480
rsnd_src_quit(struct rsnd_mod * mod,struct rsnd_dai_stream * io,struct rsnd_priv * priv)481 static int rsnd_src_quit(struct rsnd_mod *mod,
482 struct rsnd_dai_stream *io,
483 struct rsnd_priv *priv)
484 {
485 struct rsnd_src *src = rsnd_mod_to_src(mod);
486
487 rsnd_src_halt(mod);
488
489 rsnd_mod_power_off(mod);
490
491 /* reset sync convert_rate */
492 src->sync.val = 0;
493
494 return 0;
495 }
496
__rsnd_src_interrupt(struct rsnd_mod * mod,struct rsnd_dai_stream * io)497 static void __rsnd_src_interrupt(struct rsnd_mod *mod,
498 struct rsnd_dai_stream *io)
499 {
500 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
501 bool stop = false;
502
503 spin_lock(&priv->lock);
504
505 /* ignore all cases if not working */
506 if (!rsnd_io_is_working(io))
507 goto rsnd_src_interrupt_out;
508
509 if (rsnd_src_error_occurred(mod))
510 stop = true;
511
512 rsnd_src_status_clear(mod);
513 rsnd_src_interrupt_out:
514
515 spin_unlock(&priv->lock);
516
517 if (stop)
518 snd_pcm_stop_xrun(io->substream);
519 }
520
rsnd_src_interrupt(int irq,void * data)521 static irqreturn_t rsnd_src_interrupt(int irq, void *data)
522 {
523 struct rsnd_mod *mod = data;
524
525 rsnd_mod_interrupt(mod, __rsnd_src_interrupt);
526
527 return IRQ_HANDLED;
528 }
529
rsnd_src_probe_(struct rsnd_mod * mod,struct rsnd_dai_stream * io,struct rsnd_priv * priv)530 static int rsnd_src_probe_(struct rsnd_mod *mod,
531 struct rsnd_dai_stream *io,
532 struct rsnd_priv *priv)
533 {
534 struct rsnd_src *src = rsnd_mod_to_src(mod);
535 struct device *dev = rsnd_priv_to_dev(priv);
536 int irq = src->irq;
537 int ret;
538
539 if (irq > 0) {
540 /*
541 * IRQ is not supported on non-DT
542 * see
543 * rsnd_src_irq()
544 */
545 ret = devm_request_irq(dev, irq,
546 rsnd_src_interrupt,
547 IRQF_SHARED,
548 dev_name(dev), mod);
549 if (ret)
550 return ret;
551 }
552
553 ret = rsnd_dma_attach(io, mod, &src->dma);
554
555 return ret;
556 }
557
rsnd_src_pcm_new(struct rsnd_mod * mod,struct rsnd_dai_stream * io,struct snd_soc_pcm_runtime * rtd)558 static int rsnd_src_pcm_new(struct rsnd_mod *mod,
559 struct rsnd_dai_stream *io,
560 struct snd_soc_pcm_runtime *rtd)
561 {
562 struct rsnd_src *src = rsnd_mod_to_src(mod);
563 int ret;
564
565 /*
566 * enable SRC sync convert if possible
567 */
568
569 /*
570 * It can't use SRC Synchronous convert
571 * when Capture if it uses CMD
572 */
573 if (rsnd_io_to_mod_cmd(io) && !rsnd_io_is_play(io))
574 return 0;
575
576 /*
577 * enable sync convert
578 */
579 ret = rsnd_kctrl_new_s(mod, io, rtd,
580 rsnd_io_is_play(io) ?
581 "SRC Out Rate Switch" :
582 "SRC In Rate Switch",
583 rsnd_kctrl_accept_anytime,
584 rsnd_src_set_convert_rate,
585 &src->sen, 1);
586 if (ret < 0)
587 return ret;
588
589 ret = rsnd_kctrl_new_s(mod, io, rtd,
590 rsnd_io_is_play(io) ?
591 "SRC Out Rate" :
592 "SRC In Rate",
593 rsnd_kctrl_accept_runtime,
594 rsnd_src_set_convert_rate,
595 &src->sync, 192000);
596
597 return ret;
598 }
599
600 #ifdef CONFIG_DEBUG_FS
rsnd_src_debug_info(struct seq_file * m,struct rsnd_dai_stream * io,struct rsnd_mod * mod)601 static void rsnd_src_debug_info(struct seq_file *m,
602 struct rsnd_dai_stream *io,
603 struct rsnd_mod *mod)
604 {
605 rsnd_debugfs_mod_reg_show(m, mod, RSND_GEN2_SCU,
606 rsnd_mod_id(mod) * 0x20, 0x20);
607 seq_puts(m, "\n");
608 rsnd_debugfs_mod_reg_show(m, mod, RSND_GEN2_SCU,
609 0x1c0, 0x20);
610 seq_puts(m, "\n");
611 rsnd_debugfs_mod_reg_show(m, mod, RSND_GEN2_SCU,
612 0x200 + rsnd_mod_id(mod) * 0x40, 0x40);
613 }
614 #define DEBUG_INFO .debug_info = rsnd_src_debug_info
615 #else
616 #define DEBUG_INFO
617 #endif
618
619 static struct rsnd_mod_ops rsnd_src_ops = {
620 .name = SRC_NAME,
621 .dma_req = rsnd_src_dma_req,
622 .probe = rsnd_src_probe_,
623 .init = rsnd_src_init,
624 .quit = rsnd_src_quit,
625 .start = rsnd_src_start,
626 .stop = rsnd_src_stop,
627 .irq = rsnd_src_irq,
628 .pcm_new = rsnd_src_pcm_new,
629 .get_status = rsnd_mod_get_status,
630 DEBUG_INFO
631 };
632
rsnd_src_mod_get(struct rsnd_priv * priv,int id)633 struct rsnd_mod *rsnd_src_mod_get(struct rsnd_priv *priv, int id)
634 {
635 if (WARN_ON(id < 0 || id >= rsnd_src_nr(priv)))
636 id = 0;
637
638 return rsnd_mod_get(rsnd_src_get(priv, id));
639 }
640
rsnd_src_probe(struct rsnd_priv * priv)641 int rsnd_src_probe(struct rsnd_priv *priv)
642 {
643 struct device_node *node;
644 struct device_node *np;
645 struct device *dev = rsnd_priv_to_dev(priv);
646 struct rsnd_src *src;
647 struct clk *clk;
648 char name[RSND_SRC_NAME_SIZE];
649 int i, nr, ret;
650
651 /* This driver doesn't support Gen1 at this point */
652 if (rsnd_is_gen1(priv))
653 return 0;
654
655 node = rsnd_src_of_node(priv);
656 if (!node)
657 return 0; /* not used is not error */
658
659 nr = rsnd_node_count(priv, node, SRC_NAME);
660 if (!nr) {
661 ret = -EINVAL;
662 goto rsnd_src_probe_done;
663 }
664
665 src = devm_kcalloc(dev, nr, sizeof(*src), GFP_KERNEL);
666 if (!src) {
667 ret = -ENOMEM;
668 goto rsnd_src_probe_done;
669 }
670
671 priv->src_nr = nr;
672 priv->src = src;
673
674 i = 0;
675 for_each_child_of_node(node, np) {
676 if (!of_device_is_available(np))
677 goto skip;
678
679 i = rsnd_node_fixed_index(dev, np, SRC_NAME, i);
680 if (i < 0) {
681 ret = -EINVAL;
682 of_node_put(np);
683 goto rsnd_src_probe_done;
684 }
685
686 src = rsnd_src_get(priv, i);
687
688 snprintf(name, RSND_SRC_NAME_SIZE, "%s.%d",
689 SRC_NAME, i);
690
691 src->irq = irq_of_parse_and_map(np, 0);
692 if (!src->irq) {
693 ret = -EINVAL;
694 of_node_put(np);
695 goto rsnd_src_probe_done;
696 }
697
698 clk = devm_clk_get(dev, name);
699 if (IS_ERR(clk)) {
700 ret = PTR_ERR(clk);
701 of_node_put(np);
702 goto rsnd_src_probe_done;
703 }
704
705 ret = rsnd_mod_init(priv, rsnd_mod_get(src),
706 &rsnd_src_ops, clk, RSND_MOD_SRC, i);
707 if (ret) {
708 of_node_put(np);
709 goto rsnd_src_probe_done;
710 }
711
712 skip:
713 i++;
714 }
715
716 ret = 0;
717
718 rsnd_src_probe_done:
719 of_node_put(node);
720
721 return ret;
722 }
723
rsnd_src_remove(struct rsnd_priv * priv)724 void rsnd_src_remove(struct rsnd_priv *priv)
725 {
726 struct rsnd_src *src;
727 int i;
728
729 for_each_rsnd_src(src, priv, i) {
730 rsnd_mod_quit(rsnd_mod_get(src));
731 }
732 }
733