src.c (d1208404dd477c142680437137c9996b95bfd508) src.c (5ba17b42e1755c3c5cfe96370cfd47f34d01f62c)
1/*
2 * Renesas R-Car SRC support
3 *
4 * Copyright (C) 2013 Renesas Solutions Corp.
5 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as

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15/* SRCx_STATUS */
16#define OUF_SRCO ((1 << 12) | (1 << 13))
17#define OUF_SRCI ((1 << 9) | (1 << 8))
18
19/* SCU_SYSTEM_STATUS0/1 */
20#define OUF_SRC(id) ((1 << (id + 16)) | (1 << id))
21
22struct rsnd_src {
1/*
2 * Renesas R-Car SRC support
3 *
4 * Copyright (C) 2013 Renesas Solutions Corp.
5 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as

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15/* SRCx_STATUS */
16#define OUF_SRCO ((1 << 12) | (1 << 13))
17#define OUF_SRCI ((1 << 9) | (1 << 8))
18
19/* SCU_SYSTEM_STATUS0/1 */
20#define OUF_SRC(id) ((1 << (id + 16)) | (1 << id))
21
22struct rsnd_src {
23 struct rsnd_src_platform_info *info; /* rcar_snd.h */
24 struct rsnd_mod mod;
23 struct rsnd_mod mod;
24 struct rsnd_mod *dma;
25 struct rsnd_kctrl_cfg_s sen; /* sync convert enable */
26 struct rsnd_kctrl_cfg_s sync; /* sync convert */
27 u32 convert_rate; /* sampling rate convert */
28 int err;
25 struct rsnd_kctrl_cfg_s sen; /* sync convert enable */
26 struct rsnd_kctrl_cfg_s sync; /* sync convert */
27 u32 convert_rate; /* sampling rate convert */
28 int err;
29 int irq;
29};
30
31#define RSND_SRC_NAME_SIZE 16
32
30};
31
32#define RSND_SRC_NAME_SIZE 16
33
34#define rsnd_src_get(priv, id) ((struct rsnd_src *)(priv->src) + id)
35#define rsnd_src_to_dma(src) ((src)->dma)
33#define rsnd_src_nr(priv) ((priv)->src_nr)
34#define rsnd_enable_sync_convert(src) ((src)->sen.val)
36#define rsnd_src_nr(priv) ((priv)->src_nr)
37#define rsnd_enable_sync_convert(src) ((src)->sen.val)
35#define rsnd_src_of_node(priv) \
36 of_get_child_by_name(rsnd_priv_to_dev(priv)->of_node, "rcar_sound,src")
37
38#define rsnd_mod_to_src(_mod) \
39 container_of((_mod), struct rsnd_src, mod)
40
41#define for_each_rsnd_src(pos, priv, i) \
42 for ((i) = 0; \
43 ((i) < rsnd_src_nr(priv)) && \
44 ((pos) = (struct rsnd_src *)(priv)->src + i); \

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64 * |--------|
65 *
66 * Gen2
67 *
68 * [mem] -> [SRC] -> [SSIU] -> [SSI]
69 * |-----------------|
70 */
71
38
39#define rsnd_mod_to_src(_mod) \
40 container_of((_mod), struct rsnd_src, mod)
41
42#define for_each_rsnd_src(pos, priv, i) \
43 for ((i) = 0; \
44 ((i) < rsnd_src_nr(priv)) && \
45 ((pos) = (struct rsnd_src *)(priv)->src + i); \

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65 * |--------|
66 *
67 * Gen2
68 *
69 * [mem] -> [SRC] -> [SSIU] -> [SSI]
70 * |-----------------|
71 */
72
72/*
73 * How to use SRC bypass mode for debugging
74 *
75 * SRC has bypass mode, and it is useful for debugging.
76 * In Gen2 case,
77 * SRCm_MODE controls whether SRC is used or not
78 * SSI_MODE0 controls whether SSIU which receives SRC data
79 * is used or not.
80 * Both SRCm_MODE/SSI_MODE0 settings are needed if you use SRC,
81 * but SRC bypass mode needs SSI_MODE0 only.
82 *
83 * This driver request
84 * struct rsnd_src_platform_info {
85 * u32 convert_rate;
86 * int dma_id;
87 * }
88 *
89 * rsnd_src_convert_rate() indicates
90 * above convert_rate, and it controls
91 * whether SRC is used or not.
92 *
93 * ex) doesn't use SRC
94 * static struct rsnd_dai_platform_info rsnd_dai = {
95 * .playback = { .ssi = &rsnd_ssi[0], },
96 * };
97 *
98 * ex) uses SRC
99 * static struct rsnd_src_platform_info rsnd_src[] = {
100 * RSND_SCU(48000, 0),
101 * ...
102 * };
103 * static struct rsnd_dai_platform_info rsnd_dai = {
104 * .playback = { .ssi = &rsnd_ssi[0], .src = &rsnd_src[0] },
105 * };
106 *
107 * ex) uses SRC bypass mode
108 * static struct rsnd_src_platform_info rsnd_src[] = {
109 * RSND_SCU(0, 0),
110 * ...
111 * };
112 * static struct rsnd_dai_platform_info rsnd_dai = {
113 * .playback = { .ssi = &rsnd_ssi[0], .src = &rsnd_src[0] },
114 * };
115 *
116 */
117
118/*
119 * Gen1/Gen2 common functions
120 */
121static void rsnd_src_soft_reset(struct rsnd_mod *mod)
73static void rsnd_src_activation(struct rsnd_mod *mod)
122{
123 rsnd_mod_write(mod, SRC_SWRSR, 0);
124 rsnd_mod_write(mod, SRC_SWRSR, 1);
125}
126
74{
75 rsnd_mod_write(mod, SRC_SWRSR, 0);
76 rsnd_mod_write(mod, SRC_SWRSR, 1);
77}
78
127
128#define rsnd_src_initialize_lock(mod) __rsnd_src_initialize_lock(mod, 1)
129#define rsnd_src_initialize_unlock(mod) __rsnd_src_initialize_lock(mod, 0)
130static void __rsnd_src_initialize_lock(struct rsnd_mod *mod, u32 enable)
79static void rsnd_src_halt(struct rsnd_mod *mod)
131{
80{
132 rsnd_mod_write(mod, SRC_SRCIR, enable);
81 rsnd_mod_write(mod, SRC_SRCIR, 1);
82 rsnd_mod_write(mod, SRC_SWRSR, 0);
133}
134
135static struct dma_chan *rsnd_src_dma_req(struct rsnd_dai_stream *io,
136 struct rsnd_mod *mod)
137{
138 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
139 int is_play = rsnd_io_is_play(io);
140
141 return rsnd_dma_request_channel(rsnd_src_of_node(priv),
142 mod,
143 is_play ? "rx" : "tx");
144}
145
83}
84
85static struct dma_chan *rsnd_src_dma_req(struct rsnd_dai_stream *io,
86 struct rsnd_mod *mod)
87{
88 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
89 int is_play = rsnd_io_is_play(io);
90
91 return rsnd_dma_request_channel(rsnd_src_of_node(priv),
92 mod,
93 is_play ? "rx" : "tx");
94}
95
146int rsnd_src_ssiu_start(struct rsnd_mod *ssi_mod,
147 struct rsnd_dai_stream *io,
148 int use_busif)
149{
150 struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
151 int ssi_id = rsnd_mod_id(ssi_mod);
152
153 /*
154 * SSI_MODE0
155 */
156 rsnd_mod_bset(ssi_mod, SSI_MODE0, (1 << ssi_id),
157 !use_busif << ssi_id);
158
159 /*
160 * SSI_MODE1
161 */
162 if (rsnd_ssi_is_pin_sharing(io)) {
163 int shift = -1;
164 switch (ssi_id) {
165 case 1:
166 shift = 0;
167 break;
168 case 2:
169 shift = 2;
170 break;
171 case 4:
172 shift = 16;
173 break;
174 }
175
176 if (shift >= 0)
177 rsnd_mod_bset(ssi_mod, SSI_MODE1,
178 0x3 << shift,
179 rsnd_rdai_is_clk_master(rdai) ?
180 0x2 << shift : 0x1 << shift);
181 }
182
183 /*
184 * DMA settings for SSIU
185 */
186 if (use_busif) {
187 u32 val = rsnd_get_dalign(ssi_mod, io);
188
189 rsnd_mod_write(ssi_mod, SSI_BUSIF_ADINR,
190 rsnd_get_adinr_bit(ssi_mod, io));
191 rsnd_mod_write(ssi_mod, SSI_BUSIF_MODE, 1);
192 rsnd_mod_write(ssi_mod, SSI_CTRL, 0x1);
193
194 rsnd_mod_write(ssi_mod, SSI_BUSIF_DALIGN, val);
195 }
196
197 return 0;
198}
199
200int rsnd_src_ssiu_stop(struct rsnd_mod *ssi_mod,
201 struct rsnd_dai_stream *io)
202{
203 /*
204 * DMA settings for SSIU
205 */
206 rsnd_mod_write(ssi_mod, SSI_CTRL, 0);
207
208 return 0;
209}
210
211int rsnd_src_ssi_irq_enable(struct rsnd_mod *ssi_mod)
212{
213 struct rsnd_priv *priv = rsnd_mod_to_priv(ssi_mod);
214
215 if (rsnd_is_gen1(priv))
216 return 0;
217
218 /* enable SSI interrupt if Gen2 */
219 rsnd_mod_write(ssi_mod, SSI_INT_ENABLE,
220 rsnd_ssi_is_dma_mode(ssi_mod) ?
221 0x0e000000 : 0x0f000000);
222
223 return 0;
224}
225
226int rsnd_src_ssi_irq_disable(struct rsnd_mod *ssi_mod)
227{
228 struct rsnd_priv *priv = rsnd_mod_to_priv(ssi_mod);
229
230 if (rsnd_is_gen1(priv))
231 return 0;
232
233 /* disable SSI interrupt if Gen2 */
234 rsnd_mod_write(ssi_mod, SSI_INT_ENABLE, 0x00000000);
235
236 return 0;
237}
238
239static u32 rsnd_src_convert_rate(struct rsnd_dai_stream *io,
240 struct rsnd_src *src)
241{
242 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
243 u32 convert_rate;
244
245 if (!runtime)
246 return 0;

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278 }
279
280 if (!rate)
281 rate = runtime->rate;
282
283 return rate;
284}
285
96static u32 rsnd_src_convert_rate(struct rsnd_dai_stream *io,
97 struct rsnd_src *src)
98{
99 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
100 u32 convert_rate;
101
102 if (!runtime)
103 return 0;

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135 }
136
137 if (!rate)
138 rate = runtime->rate;
139
140 return rate;
141}
142
286static int rsnd_src_set_convert_rate(struct rsnd_mod *mod,
287 struct rsnd_dai_stream *io)
288{
289 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
290 struct rsnd_src *src = rsnd_mod_to_src(mod);
291 u32 convert_rate = rsnd_src_convert_rate(io, src);
292 u32 fsrate = 0;
293
294 if (convert_rate)
295 fsrate = 0x0400000 / convert_rate * runtime->rate;
296
297 /* Set channel number and output bit length */
298 rsnd_mod_write(mod, SRC_ADINR, rsnd_get_adinr_bit(mod, io));
299
300 /* Enable the initial value of IFS */
301 if (fsrate) {
302 rsnd_mod_write(mod, SRC_IFSCR, 1);
303
304 /* Set initial value of IFS */
305 rsnd_mod_write(mod, SRC_IFSVR, fsrate);
306 }
307
308 /* use DMA transfer */
309 rsnd_mod_write(mod, SRC_BUSIF_MODE, 1);
310
311 return 0;
312}
313
314static int rsnd_src_hw_params(struct rsnd_mod *mod,
315 struct rsnd_dai_stream *io,
316 struct snd_pcm_substream *substream,
317 struct snd_pcm_hw_params *fe_params)
318{
319 struct rsnd_src *src = rsnd_mod_to_src(mod);
320 struct snd_soc_pcm_runtime *fe = substream->private_data;
321
143static int rsnd_src_hw_params(struct rsnd_mod *mod,
144 struct rsnd_dai_stream *io,
145 struct snd_pcm_substream *substream,
146 struct snd_pcm_hw_params *fe_params)
147{
148 struct rsnd_src *src = rsnd_mod_to_src(mod);
149 struct snd_soc_pcm_runtime *fe = substream->private_data;
150
322 /* default value (mainly for non-DT) */
323 src->convert_rate = src->info->convert_rate;
324
325 /*
326 * SRC assumes that it is used under DPCM if user want to use
327 * sampling rate convert. Then, SRC should be FE.
328 * And then, this function will be called *after* BE settings.
329 * this means, each BE already has fixuped hw_params.
330 * see
331 * dpcm_fe_dai_hw_params()
332 * dpcm_be_dai_hw_params()

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342 if (params_rate(fe_params) != params_rate(be_params))
343 src->convert_rate = params_rate(be_params);
344 }
345 }
346
347 return 0;
348}
349
151 /*
152 * SRC assumes that it is used under DPCM if user want to use
153 * sampling rate convert. Then, SRC should be FE.
154 * And then, this function will be called *after* BE settings.
155 * this means, each BE already has fixuped hw_params.
156 * see
157 * dpcm_fe_dai_hw_params()
158 * dpcm_be_dai_hw_params()

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168 if (params_rate(fe_params) != params_rate(be_params))
169 src->convert_rate = params_rate(be_params);
170 }
171 }
172
173 return 0;
174}
175
350static int rsnd_src_init(struct rsnd_mod *mod,
351 struct rsnd_priv *priv)
176static void rsnd_src_set_convert_rate(struct rsnd_dai_stream *io,
177 struct rsnd_mod *mod)
352{
178{
179 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
180 struct device *dev = rsnd_priv_to_dev(priv);
181 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
353 struct rsnd_src *src = rsnd_mod_to_src(mod);
182 struct rsnd_src *src = rsnd_mod_to_src(mod);
183 u32 convert_rate = rsnd_src_convert_rate(io, src);
184 u32 ifscr, fsrate, adinr;
185 u32 cr, route;
186 u32 bsdsr, bsisr;
187 uint ratio;
354
188
355 rsnd_mod_power_on(mod);
189 if (!runtime)
190 return;
356
191
357 rsnd_src_soft_reset(mod);
192 /* 6 - 1/6 are very enough ratio for SRC_BSDSR */
193 if (!convert_rate)
194 ratio = 0;
195 else if (convert_rate > runtime->rate)
196 ratio = 100 * convert_rate / runtime->rate;
197 else
198 ratio = 100 * runtime->rate / convert_rate;
358
199
359 rsnd_src_initialize_lock(mod);
200 if (ratio > 600) {
201 dev_err(dev, "FSO/FSI ratio error\n");
202 return;
203 }
360
204
361 src->err = 0;
362
363 /* reset sync convert_rate */
364 src->sync.val = 0;
365
366 return 0;
367}
368
369static int rsnd_src_quit(struct rsnd_mod *mod,
370 struct rsnd_dai_stream *io,
371 struct rsnd_priv *priv)
372{
373 struct rsnd_src *src = rsnd_mod_to_src(mod);
374 struct device *dev = rsnd_priv_to_dev(priv);
375
376 rsnd_mod_power_off(mod);
377
378 if (src->err)
379 dev_warn(dev, "%s[%d] under/over flow err = %d\n",
380 rsnd_mod_name(mod), rsnd_mod_id(mod), src->err);
381
382 src->convert_rate = 0;
383
384 /* reset sync convert_rate */
385 src->sync.val = 0;
386
387 return 0;
388}
389
390static int rsnd_src_start(struct rsnd_mod *mod)
391{
392 rsnd_src_initialize_unlock(mod);
393
394 return 0;
395}
396
397static int rsnd_src_stop(struct rsnd_mod *mod)
398{
399 /* nothing to do */
400 return 0;
401}
402
403/*
404 * Gen1 functions
405 */
406static int rsnd_src_set_route_gen1(struct rsnd_dai_stream *io,
407 struct rsnd_mod *mod)
408{
409 struct src_route_config {
410 u32 mask;
411 int shift;
412 } routes[] = {
413 { 0xF, 0, }, /* 0 */
414 { 0xF, 4, }, /* 1 */
415 { 0xF, 8, }, /* 2 */
416 { 0x7, 12, }, /* 3 */
417 { 0x7, 16, }, /* 4 */
418 { 0x7, 20, }, /* 5 */
419 { 0x7, 24, }, /* 6 */
420 { 0x3, 28, }, /* 7 */
421 { 0x3, 30, }, /* 8 */
422 };
423 u32 mask;
424 u32 val;
425 int id;
426
427 id = rsnd_mod_id(mod);
428 if (id < 0 || id >= ARRAY_SIZE(routes))
429 return -EIO;
430
431 /*
205 /*
432 * SRC_ROUTE_SELECT
206 * SRC_ADINR
433 */
207 */
434 val = rsnd_io_is_play(io) ? 0x1 : 0x2;
435 val = val << routes[id].shift;
436 mask = routes[id].mask << routes[id].shift;
208 adinr = rsnd_get_adinr_bit(mod, io) |
209 rsnd_get_adinr_chan(mod, io);
437
210
438 rsnd_mod_bset(mod, SRC_ROUTE_SEL, mask, val);
439
440 return 0;
441}
442
443static int rsnd_src_set_convert_timing_gen1(struct rsnd_dai_stream *io,
444 struct rsnd_mod *mod)
445{
446 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
447 struct rsnd_src *src = rsnd_mod_to_src(mod);
448 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
449 u32 convert_rate = rsnd_src_convert_rate(io, src);
450 u32 mask;
451 u32 val;
452 int shift;
453 int id = rsnd_mod_id(mod);
454 int ret;
455
456 /*
211 /*
457 * SRC_TIMING_SELECT
212 * SRC_IFSCR / SRC_IFSVR
458 */
213 */
459 shift = (id % 4) * 8;
460 mask = 0x1F << shift;
214 ifscr = 0;
215 fsrate = 0;
216 if (convert_rate) {
217 ifscr = 1;
218 fsrate = 0x0400000 / convert_rate * runtime->rate;
219 }
461
462 /*
220
221 /*
463 * ADG is used as source clock if SRC was used,
464 * then, SSI WS is used as destination clock.
465 * SSI WS is used as source clock if SRC is not used
466 * (when playback, source/destination become reverse when capture)
222 * SRC_SRCCR / SRC_ROUTE_MODE0
467 */
223 */
468 ret = 0;
224 cr = 0x00011110;
225 route = 0x0;
469 if (convert_rate) {
226 if (convert_rate) {
470 /* use ADG */
471 val = 0;
472 ret = rsnd_adg_set_convert_clk_gen1(priv, mod,
473 runtime->rate,
474 convert_rate);
475 } else if (8 == id) {
476 /* use SSI WS, but SRU8 is special */
477 val = id << shift;
478 } else {
479 /* use SSI WS */
480 val = (id + 1) << shift;
227 route = 0x1;
228
229 if (rsnd_enable_sync_convert(src)) {
230 cr |= 0x1;
231 route |= rsnd_io_is_play(io) ?
232 (0x1 << 24) : (0x1 << 25);
233 }
481 }
482
234 }
235
483 if (ret < 0)
484 return ret;
485
486 switch (id / 4) {
487 case 0:
488 rsnd_mod_bset(mod, SRC_TMG_SEL0, mask, val);
236 /*
237 * SRC_BSDSR / SRC_BSISR
238 */
239 switch (rsnd_mod_id(mod)) {
240 case 5:
241 case 6:
242 case 7:
243 case 8:
244 bsdsr = 0x02400000; /* 6 - 1/6 */
245 bsisr = 0x00100060; /* 6 - 1/6 */
489 break;
246 break;
490 case 1:
491 rsnd_mod_bset(mod, SRC_TMG_SEL1, mask, val);
247 default:
248 bsdsr = 0x01800000; /* 6 - 1/6 */
249 bsisr = 0x00100060 ;/* 6 - 1/6 */
492 break;
250 break;
493 case 2:
494 rsnd_mod_bset(mod, SRC_TMG_SEL2, mask, val);
495 break;
496 }
497
251 }
252
498 return 0;
499}
253 rsnd_mod_write(mod, SRC_SRCIR, 1); /* initialize */
254 rsnd_mod_write(mod, SRC_ADINR, adinr);
255 rsnd_mod_write(mod, SRC_IFSCR, ifscr);
256 rsnd_mod_write(mod, SRC_IFSVR, fsrate);
257 rsnd_mod_write(mod, SRC_SRCCR, cr);
258 rsnd_mod_write(mod, SRC_BSDSR, bsdsr);
259 rsnd_mod_write(mod, SRC_BSISR, bsisr);
260 rsnd_mod_write(mod, SRC_SRCIR, 0); /* cancel initialize */
500
261
501static int rsnd_src_set_convert_rate_gen1(struct rsnd_mod *mod,
502 struct rsnd_dai_stream *io)
503{
504 struct rsnd_src *src = rsnd_mod_to_src(mod);
505 int ret;
262 rsnd_mod_write(mod, SRC_ROUTE_MODE0, route);
263 rsnd_mod_write(mod, SRC_I_BUSIF_MODE, 1);
264 rsnd_mod_write(mod, SRC_O_BUSIF_MODE, 1);
265 rsnd_mod_write(mod, SRC_BUSIF_DALIGN, rsnd_get_dalign(mod, io));
506
266
507 ret = rsnd_src_set_convert_rate(mod, io);
508 if (ret < 0)
509 return ret;
510
511 /* Select SRC mode (fixed value) */
512 rsnd_mod_write(mod, SRC_SRCCR, 0x00010110);
513
514 /* Set the restriction value of the FS ratio (98%) */
515 rsnd_mod_write(mod, SRC_MNFSR,
516 rsnd_mod_read(mod, SRC_IFSVR) / 100 * 98);
517
518 /* Gen1/Gen2 are not compatible */
519 if (rsnd_src_convert_rate(io, src))
520 rsnd_mod_write(mod, SRC_ROUTE_MODE0, 1);
521
522 /* no SRC_BFSSR settings, since SRC_SRCCR::BUFMD is 0 */
523
524 return 0;
267 if (convert_rate)
268 rsnd_adg_set_convert_clk_gen2(mod, io,
269 runtime->rate,
270 convert_rate);
271 else
272 rsnd_adg_set_convert_timing_gen2(mod, io);
525}
526
273}
274
527static int rsnd_src_init_gen1(struct rsnd_mod *mod,
528 struct rsnd_dai_stream *io,
529 struct rsnd_priv *priv)
275#define rsnd_src_irq_enable(mod) rsnd_src_irq_ctrol(mod, 1)
276#define rsnd_src_irq_disable(mod) rsnd_src_irq_ctrol(mod, 0)
277static void rsnd_src_irq_ctrol(struct rsnd_mod *mod, int enable)
530{
278{
531 int ret;
532
533 ret = rsnd_src_init(mod, priv);
534 if (ret < 0)
535 return ret;
536
537 ret = rsnd_src_set_route_gen1(io, mod);
538 if (ret < 0)
539 return ret;
540
541 ret = rsnd_src_set_convert_rate_gen1(mod, io);
542 if (ret < 0)
543 return ret;
544
545 ret = rsnd_src_set_convert_timing_gen1(io, mod);
546 if (ret < 0)
547 return ret;
548
549 return 0;
550}
551
552static int rsnd_src_start_gen1(struct rsnd_mod *mod,
553 struct rsnd_dai_stream *io,
554 struct rsnd_priv *priv)
555{
556 int id = rsnd_mod_id(mod);
557
558 rsnd_mod_bset(mod, SRC_ROUTE_CTRL, (1 << id), (1 << id));
559
560 return rsnd_src_start(mod);
561}
562
563static int rsnd_src_stop_gen1(struct rsnd_mod *mod,
564 struct rsnd_dai_stream *io,
565 struct rsnd_priv *priv)
566{
567 int id = rsnd_mod_id(mod);
568
569 rsnd_mod_bset(mod, SRC_ROUTE_CTRL, (1 << id), 0);
570
571 return rsnd_src_stop(mod);
572}
573
574static struct rsnd_mod_ops rsnd_src_gen1_ops = {
575 .name = SRC_NAME,
576 .dma_req = rsnd_src_dma_req,
577 .init = rsnd_src_init_gen1,
578 .quit = rsnd_src_quit,
579 .start = rsnd_src_start_gen1,
580 .stop = rsnd_src_stop_gen1,
581 .hw_params = rsnd_src_hw_params,
582};
583
584/*
585 * Gen2 functions
586 */
587#define rsnd_src_irq_enable_gen2(mod) rsnd_src_irq_ctrol_gen2(mod, 1)
588#define rsnd_src_irq_disable_gen2(mod) rsnd_src_irq_ctrol_gen2(mod, 0)
589static void rsnd_src_irq_ctrol_gen2(struct rsnd_mod *mod, int enable)
590{
591 struct rsnd_src *src = rsnd_mod_to_src(mod);
592 u32 sys_int_val, int_val, sys_int_mask;
279 struct rsnd_src *src = rsnd_mod_to_src(mod);
280 u32 sys_int_val, int_val, sys_int_mask;
593 int irq = src->info->irq;
281 int irq = src->irq;
594 int id = rsnd_mod_id(mod);
595
596 sys_int_val =
597 sys_int_mask = OUF_SRC(id);
598 int_val = 0x3300;
599
600 /*
601 * IRQ is not supported on non-DT
602 * see
282 int id = rsnd_mod_id(mod);
283
284 sys_int_val =
285 sys_int_mask = OUF_SRC(id);
286 int_val = 0x3300;
287
288 /*
289 * IRQ is not supported on non-DT
290 * see
603 * rsnd_src_probe_gen2()
291 * rsnd_src_probe_()
604 */
605 if ((irq <= 0) || !enable) {
606 sys_int_val = 0;
607 int_val = 0;
608 }
609
610 /*
611 * WORKAROUND
612 *
613 * ignore over flow error when rsnd_enable_sync_convert()
614 */
615 if (rsnd_enable_sync_convert(src))
616 sys_int_val = sys_int_val & 0xffff;
617
618 rsnd_mod_write(mod, SRC_INT_ENABLE0, int_val);
619 rsnd_mod_bset(mod, SCU_SYS_INT_EN0, sys_int_mask, sys_int_val);
620 rsnd_mod_bset(mod, SCU_SYS_INT_EN1, sys_int_mask, sys_int_val);
621}
622
292 */
293 if ((irq <= 0) || !enable) {
294 sys_int_val = 0;
295 int_val = 0;
296 }
297
298 /*
299 * WORKAROUND
300 *
301 * ignore over flow error when rsnd_enable_sync_convert()
302 */
303 if (rsnd_enable_sync_convert(src))
304 sys_int_val = sys_int_val & 0xffff;
305
306 rsnd_mod_write(mod, SRC_INT_ENABLE0, int_val);
307 rsnd_mod_bset(mod, SCU_SYS_INT_EN0, sys_int_mask, sys_int_val);
308 rsnd_mod_bset(mod, SCU_SYS_INT_EN1, sys_int_mask, sys_int_val);
309}
310
623static void rsnd_src_error_clear_gen2(struct rsnd_mod *mod)
311static void rsnd_src_status_clear(struct rsnd_mod *mod)
624{
625 u32 val = OUF_SRC(rsnd_mod_id(mod));
626
627 rsnd_mod_bset(mod, SCU_SYS_STATUS0, val, val);
628 rsnd_mod_bset(mod, SCU_SYS_STATUS1, val, val);
629}
630
312{
313 u32 val = OUF_SRC(rsnd_mod_id(mod));
314
315 rsnd_mod_bset(mod, SCU_SYS_STATUS0, val, val);
316 rsnd_mod_bset(mod, SCU_SYS_STATUS1, val, val);
317}
318
631static bool rsnd_src_error_record_gen2(struct rsnd_mod *mod)
319static bool rsnd_src_record_error(struct rsnd_mod *mod)
632{
633 struct rsnd_src *src = rsnd_mod_to_src(mod);
634 u32 val0, val1;
635 bool ret = false;
636
637 val0 = val1 = OUF_SRC(rsnd_mod_id(mod));
638
639 /*

--- 7 unchanged lines hidden (view full) ---

647 if ((rsnd_mod_read(mod, SCU_SYS_STATUS0) & val0) ||
648 (rsnd_mod_read(mod, SCU_SYS_STATUS1) & val1)) {
649 struct rsnd_src *src = rsnd_mod_to_src(mod);
650
651 src->err++;
652 ret = true;
653 }
654
320{
321 struct rsnd_src *src = rsnd_mod_to_src(mod);
322 u32 val0, val1;
323 bool ret = false;
324
325 val0 = val1 = OUF_SRC(rsnd_mod_id(mod));
326
327 /*

--- 7 unchanged lines hidden (view full) ---

335 if ((rsnd_mod_read(mod, SCU_SYS_STATUS0) & val0) ||
336 (rsnd_mod_read(mod, SCU_SYS_STATUS1) & val1)) {
337 struct rsnd_src *src = rsnd_mod_to_src(mod);
338
339 src->err++;
340 ret = true;
341 }
342
655 /* clear error static */
656 rsnd_src_error_clear_gen2(mod);
657
658 return ret;
659}
660
343 return ret;
344}
345
661static int _rsnd_src_start_gen2(struct rsnd_mod *mod,
662 struct rsnd_dai_stream *io)
346static int rsnd_src_start(struct rsnd_mod *mod,
347 struct rsnd_dai_stream *io,
348 struct rsnd_priv *priv)
663{
664 struct rsnd_src *src = rsnd_mod_to_src(mod);
665 u32 val;
666
349{
350 struct rsnd_src *src = rsnd_mod_to_src(mod);
351 u32 val;
352
667 val = rsnd_get_dalign(mod, io);
668
669 rsnd_mod_write(mod, SRC_BUSIF_DALIGN, val);
670
671 /*
672 * WORKAROUND
673 *
674 * Enable SRC output if you want to use sync convert together with DVC
675 */
676 val = (rsnd_io_to_mod_dvc(io) && !rsnd_enable_sync_convert(src)) ?
677 0x01 : 0x11;
678
679 rsnd_mod_write(mod, SRC_CTRL, val);
680
353 /*
354 * WORKAROUND
355 *
356 * Enable SRC output if you want to use sync convert together with DVC
357 */
358 val = (rsnd_io_to_mod_dvc(io) && !rsnd_enable_sync_convert(src)) ?
359 0x01 : 0x11;
360
361 rsnd_mod_write(mod, SRC_CTRL, val);
362
681 rsnd_src_error_clear_gen2(mod);
363 return 0;
364}
682
365
683 rsnd_src_start(mod);
366static int rsnd_src_stop(struct rsnd_mod *mod,
367 struct rsnd_dai_stream *io,
368 struct rsnd_priv *priv)
369{
370 /*
371 * stop SRC output only
372 * see rsnd_src_quit
373 */
374 rsnd_mod_write(mod, SRC_CTRL, 0x01);
684
375
685 rsnd_src_irq_enable_gen2(mod);
686
687 return 0;
688}
689
376 return 0;
377}
378
690static int _rsnd_src_stop_gen2(struct rsnd_mod *mod)
379static int rsnd_src_init(struct rsnd_mod *mod,
380 struct rsnd_dai_stream *io,
381 struct rsnd_priv *priv)
691{
382{
692 rsnd_src_irq_disable_gen2(mod);
383 struct rsnd_src *src = rsnd_mod_to_src(mod);
693
384
694 rsnd_mod_write(mod, SRC_CTRL, 0);
385 rsnd_mod_power_on(mod);
695
386
696 rsnd_src_error_record_gen2(mod);
387 rsnd_src_activation(mod);
697
388
698 return rsnd_src_stop(mod);
389 rsnd_src_set_convert_rate(io, mod);
390
391 rsnd_src_status_clear(mod);
392
393 rsnd_src_irq_enable(mod);
394
395 src->err = 0;
396
397 /* reset sync convert_rate */
398 src->sync.val = 0;
399
400 return 0;
699}
700
401}
402
701static void __rsnd_src_interrupt_gen2(struct rsnd_mod *mod,
702 struct rsnd_dai_stream *io)
403static int rsnd_src_quit(struct rsnd_mod *mod,
404 struct rsnd_dai_stream *io,
405 struct rsnd_priv *priv)
703{
406{
704 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
407 struct rsnd_src *src = rsnd_mod_to_src(mod);
408 struct device *dev = rsnd_priv_to_dev(priv);
705
409
706 spin_lock(&priv->lock);
410 rsnd_src_irq_disable(mod);
707
411
708 /* ignore all cases if not working */
709 if (!rsnd_io_is_working(io))
710 goto rsnd_src_interrupt_gen2_out;
412 /* stop both out/in */
413 rsnd_mod_write(mod, SRC_CTRL, 0);
711
414
712 if (rsnd_src_error_record_gen2(mod)) {
713 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
714 struct rsnd_src *src = rsnd_mod_to_src(mod);
715 struct device *dev = rsnd_priv_to_dev(priv);
415 rsnd_src_halt(mod);
716
416
717 dev_dbg(dev, "%s[%d] restart\n",
718 rsnd_mod_name(mod), rsnd_mod_id(mod));
417 rsnd_mod_power_off(mod);
719
418
720 _rsnd_src_stop_gen2(mod);
721 if (src->err < 1024)
722 _rsnd_src_start_gen2(mod, io);
723 else
724 dev_warn(dev, "no more SRC restart\n");
725 }
419 if (src->err)
420 dev_warn(dev, "%s[%d] under/over flow err = %d\n",
421 rsnd_mod_name(mod), rsnd_mod_id(mod), src->err);
726
422
727rsnd_src_interrupt_gen2_out:
728 spin_unlock(&priv->lock);
729}
423 src->convert_rate = 0;
730
424
731static irqreturn_t rsnd_src_interrupt_gen2(int irq, void *data)
732{
733 struct rsnd_mod *mod = data;
425 /* reset sync convert_rate */
426 src->sync.val = 0;
734
427
735 rsnd_mod_interrupt(mod, __rsnd_src_interrupt_gen2);
736
737 return IRQ_HANDLED;
428 return 0;
738}
739
429}
430
740static int rsnd_src_set_convert_rate_gen2(struct rsnd_mod *mod,
741 struct rsnd_dai_stream *io)
431static void __rsnd_src_interrupt(struct rsnd_mod *mod,
432 struct rsnd_dai_stream *io)
742{
743 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
433{
434 struct rsnd_priv *priv = rsnd_mod_to_priv(mod);
744 struct device *dev = rsnd_priv_to_dev(priv);
745 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
746 struct rsnd_src *src = rsnd_mod_to_src(mod);
435 struct rsnd_src *src = rsnd_mod_to_src(mod);
747 u32 convert_rate = rsnd_src_convert_rate(io, src);
748 u32 cr, route;
749 uint ratio;
750 int ret;
436 struct device *dev = rsnd_priv_to_dev(priv);
751
437
752 /* 6 - 1/6 are very enough ratio for SRC_BSDSR */
753 if (!convert_rate)
754 ratio = 0;
755 else if (convert_rate > runtime->rate)
756 ratio = 100 * convert_rate / runtime->rate;
757 else
758 ratio = 100 * runtime->rate / convert_rate;
438 spin_lock(&priv->lock);
759
439
760 if (ratio > 600) {
761 dev_err(dev, "FSO/FSI ratio error\n");
762 return -EINVAL;
763 }
440 /* ignore all cases if not working */
441 if (!rsnd_io_is_working(io))
442 goto rsnd_src_interrupt_out;
764
443
765 ret = rsnd_src_set_convert_rate(mod, io);
766 if (ret < 0)
767 return ret;
444 if (rsnd_src_record_error(mod)) {
768
445
769 cr = 0x00011110;
770 route = 0x0;
771 if (convert_rate) {
772 route = 0x1;
446 dev_dbg(dev, "%s[%d] restart\n",
447 rsnd_mod_name(mod), rsnd_mod_id(mod));
773
448
774 if (rsnd_enable_sync_convert(src)) {
775 cr |= 0x1;
776 route |= rsnd_io_is_play(io) ?
777 (0x1 << 24) : (0x1 << 25);
778 }
449 rsnd_src_stop(mod, io, priv);
450 rsnd_src_start(mod, io, priv);
779 }
780
451 }
452
781 rsnd_mod_write(mod, SRC_SRCCR, cr);
782 rsnd_mod_write(mod, SRC_ROUTE_MODE0, route);
453 if (src->err > 1024) {
454 rsnd_src_irq_disable(mod);
783
455
784 switch (rsnd_mod_id(mod)) {
785 case 5:
786 case 6:
787 case 7:
788 case 8:
789 rsnd_mod_write(mod, SRC_BSDSR, 0x02400000);
790 break;
791 default:
792 rsnd_mod_write(mod, SRC_BSDSR, 0x01800000);
793 break;
456 dev_warn(dev, "no more %s[%d] restart\n",
457 rsnd_mod_name(mod), rsnd_mod_id(mod));
794 }
795
458 }
459
796 rsnd_mod_write(mod, SRC_BSISR, 0x00100060);
460 rsnd_src_status_clear(mod);
461rsnd_src_interrupt_out:
797
462
798 return 0;
463 spin_unlock(&priv->lock);
799}
800
464}
465
801static int rsnd_src_set_convert_timing_gen2(struct rsnd_dai_stream *io,
802 struct rsnd_mod *mod)
466static irqreturn_t rsnd_src_interrupt(int irq, void *data)
803{
467{
804 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
805 struct rsnd_src *src = rsnd_mod_to_src(mod);
806 u32 convert_rate = rsnd_src_convert_rate(io, src);
807 int ret;
468 struct rsnd_mod *mod = data;
808
469
809 if (convert_rate)
810 ret = rsnd_adg_set_convert_clk_gen2(mod, io,
811 runtime->rate,
812 convert_rate);
813 else
814 ret = rsnd_adg_set_convert_timing_gen2(mod, io);
470 rsnd_mod_interrupt(mod, __rsnd_src_interrupt);
815
471
816 return ret;
472 return IRQ_HANDLED;
817}
818
473}
474
819static int rsnd_src_probe_gen2(struct rsnd_mod *mod,
820 struct rsnd_dai_stream *io,
821 struct rsnd_priv *priv)
475static int rsnd_src_probe_(struct rsnd_mod *mod,
476 struct rsnd_dai_stream *io,
477 struct rsnd_priv *priv)
822{
823 struct rsnd_src *src = rsnd_mod_to_src(mod);
824 struct device *dev = rsnd_priv_to_dev(priv);
478{
479 struct rsnd_src *src = rsnd_mod_to_src(mod);
480 struct device *dev = rsnd_priv_to_dev(priv);
825 int irq = src->info->irq;
481 int irq = src->irq;
826 int ret;
827
828 if (irq > 0) {
829 /*
830 * IRQ is not supported on non-DT
831 * see
482 int ret;
483
484 if (irq > 0) {
485 /*
486 * IRQ is not supported on non-DT
487 * see
832 * rsnd_src_irq_enable_gen2()
488 * rsnd_src_irq_enable()
833 */
834 ret = devm_request_irq(dev, irq,
489 */
490 ret = devm_request_irq(dev, irq,
835 rsnd_src_interrupt_gen2,
491 rsnd_src_interrupt,
836 IRQF_SHARED,
837 dev_name(dev), mod);
838 if (ret)
839 return ret;
840 }
841
492 IRQF_SHARED,
493 dev_name(dev), mod);
494 if (ret)
495 return ret;
496 }
497
842 ret = rsnd_dma_init(io,
843 rsnd_mod_to_dma(mod),
844 src->info->dma_id);
498 src->dma = rsnd_dma_attach(io, mod, 0);
499 if (IS_ERR(src->dma))
500 return PTR_ERR(src->dma);
845
846 return ret;
847}
848
501
502 return ret;
503}
504
849static int rsnd_src_remove_gen2(struct rsnd_mod *mod,
850 struct rsnd_dai_stream *io,
851 struct rsnd_priv *priv)
852{
853 rsnd_dma_quit(io, rsnd_mod_to_dma(mod));
854
855 return 0;
856}
857
858static int rsnd_src_init_gen2(struct rsnd_mod *mod,
859 struct rsnd_dai_stream *io,
860 struct rsnd_priv *priv)
861{
862 int ret;
863
864 ret = rsnd_src_init(mod, priv);
865 if (ret < 0)
866 return ret;
867
868 ret = rsnd_src_set_convert_rate_gen2(mod, io);
869 if (ret < 0)
870 return ret;
871
872 ret = rsnd_src_set_convert_timing_gen2(io, mod);
873 if (ret < 0)
874 return ret;
875
876 return 0;
877}
878
879static int rsnd_src_start_gen2(struct rsnd_mod *mod,
880 struct rsnd_dai_stream *io,
881 struct rsnd_priv *priv)
882{
883 rsnd_dma_start(io, rsnd_mod_to_dma(mod));
884
885 return _rsnd_src_start_gen2(mod, io);
886}
887
888static int rsnd_src_stop_gen2(struct rsnd_mod *mod,
889 struct rsnd_dai_stream *io,
890 struct rsnd_priv *priv)
891{
892 int ret;
893
894 ret = _rsnd_src_stop_gen2(mod);
895
896 rsnd_dma_stop(io, rsnd_mod_to_dma(mod));
897
898 return ret;
899}
900
901static void rsnd_src_reconvert_update(struct rsnd_dai_stream *io,
902 struct rsnd_mod *mod)
903{
904 struct snd_pcm_runtime *runtime = rsnd_io_to_runtime(io);
905 struct rsnd_src *src = rsnd_mod_to_src(mod);
906 u32 convert_rate = rsnd_src_convert_rate(io, src);
907 u32 fsrate;
908
909 if (!runtime)
910 return;
911
912 if (!convert_rate)
913 convert_rate = runtime->rate;
914
915 fsrate = 0x0400000 / convert_rate * runtime->rate;
916
917 /* update IFS */
918 rsnd_mod_write(mod, SRC_IFSVR, fsrate);
919}
920
921static int rsnd_src_pcm_new_gen2(struct rsnd_mod *mod,
505static int rsnd_src_pcm_new(struct rsnd_mod *mod,
922 struct rsnd_dai_stream *io,
923 struct snd_soc_pcm_runtime *rtd)
924{
925 struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
506 struct rsnd_dai_stream *io,
507 struct snd_soc_pcm_runtime *rtd)
508{
509 struct rsnd_dai *rdai = rsnd_io_to_rdai(io);
926 struct rsnd_mod *dvc = rsnd_io_to_mod_dvc(io);
927 struct rsnd_src *src = rsnd_mod_to_src(mod);
928 int ret;
929
930 /*
931 * enable SRC sync convert if possible
932 */
933
934 /*
935 * SRC sync convert needs clock master
936 */
937 if (!rsnd_rdai_is_clk_master(rdai))
938 return 0;
939
940 /*
510 struct rsnd_src *src = rsnd_mod_to_src(mod);
511 int ret;
512
513 /*
514 * enable SRC sync convert if possible
515 */
516
517 /*
518 * SRC sync convert needs clock master
519 */
520 if (!rsnd_rdai_is_clk_master(rdai))
521 return 0;
522
523 /*
941 * SRC In doesn't work if DVC was enabled
942 */
943 if (dvc && !rsnd_io_is_play(io))
944 return 0;
945
946 /*
947 * enable sync convert
948 */
949 ret = rsnd_kctrl_new_s(mod, io, rtd,
950 rsnd_io_is_play(io) ?
951 "SRC Out Rate Switch" :
952 "SRC In Rate Switch",
524 * enable sync convert
525 */
526 ret = rsnd_kctrl_new_s(mod, io, rtd,
527 rsnd_io_is_play(io) ?
528 "SRC Out Rate Switch" :
529 "SRC In Rate Switch",
953 rsnd_src_reconvert_update,
530 rsnd_src_set_convert_rate,
954 &src->sen, 1);
955 if (ret < 0)
956 return ret;
957
958 ret = rsnd_kctrl_new_s(mod, io, rtd,
959 rsnd_io_is_play(io) ?
960 "SRC Out Rate" :
961 "SRC In Rate",
531 &src->sen, 1);
532 if (ret < 0)
533 return ret;
534
535 ret = rsnd_kctrl_new_s(mod, io, rtd,
536 rsnd_io_is_play(io) ?
537 "SRC Out Rate" :
538 "SRC In Rate",
962 rsnd_src_reconvert_update,
539 rsnd_src_set_convert_rate,
963 &src->sync, 192000);
964
965 return ret;
966}
967
540 &src->sync, 192000);
541
542 return ret;
543}
544
968static struct rsnd_mod_ops rsnd_src_gen2_ops = {
545static struct rsnd_mod_ops rsnd_src_ops = {
969 .name = SRC_NAME,
970 .dma_req = rsnd_src_dma_req,
546 .name = SRC_NAME,
547 .dma_req = rsnd_src_dma_req,
971 .probe = rsnd_src_probe_gen2,
972 .remove = rsnd_src_remove_gen2,
973 .init = rsnd_src_init_gen2,
548 .probe = rsnd_src_probe_,
549 .init = rsnd_src_init,
974 .quit = rsnd_src_quit,
550 .quit = rsnd_src_quit,
975 .start = rsnd_src_start_gen2,
976 .stop = rsnd_src_stop_gen2,
551 .start = rsnd_src_start,
552 .stop = rsnd_src_stop,
977 .hw_params = rsnd_src_hw_params,
553 .hw_params = rsnd_src_hw_params,
978 .pcm_new = rsnd_src_pcm_new_gen2,
554 .pcm_new = rsnd_src_pcm_new,
979};
980
981struct rsnd_mod *rsnd_src_mod_get(struct rsnd_priv *priv, int id)
982{
983 if (WARN_ON(id < 0 || id >= rsnd_src_nr(priv)))
984 id = 0;
985
555};
556
557struct rsnd_mod *rsnd_src_mod_get(struct rsnd_priv *priv, int id)
558{
559 if (WARN_ON(id < 0 || id >= rsnd_src_nr(priv)))
560 id = 0;
561
986 return rsnd_mod_get((struct rsnd_src *)(priv->src) + id);
562 return rsnd_mod_get(rsnd_src_get(priv, id));
987}
988
563}
564
989static void rsnd_of_parse_src(struct platform_device *pdev,
990 const struct rsnd_of_data *of_data,
991 struct rsnd_priv *priv)
565int rsnd_src_probe(struct rsnd_priv *priv)
992{
566{
993 struct device_node *src_node;
567 struct device_node *node;
994 struct device_node *np;
568 struct device_node *np;
995 struct rcar_snd_info *info = rsnd_priv_to_info(priv);
996 struct rsnd_src_platform_info *src_info;
997 struct device *dev = &pdev->dev;
998 int nr, i;
999
1000 if (!of_data)
1001 return;
1002
1003 src_node = rsnd_src_of_node(priv);
1004 if (!src_node)
1005 return;
1006
1007 nr = of_get_child_count(src_node);
1008 if (!nr)
1009 goto rsnd_of_parse_src_end;
1010
1011 src_info = devm_kzalloc(dev,
1012 sizeof(struct rsnd_src_platform_info) * nr,
1013 GFP_KERNEL);
1014 if (!src_info) {
1015 dev_err(dev, "src info allocation error\n");
1016 goto rsnd_of_parse_src_end;
1017 }
1018
1019 info->src_info = src_info;
1020 info->src_info_nr = nr;
1021
1022 i = 0;
1023 for_each_child_of_node(src_node, np) {
1024 src_info[i].irq = irq_of_parse_and_map(np, 0);
1025
1026 i++;
1027 }
1028
1029rsnd_of_parse_src_end:
1030 of_node_put(src_node);
1031}
1032
1033int rsnd_src_probe(struct platform_device *pdev,
1034 const struct rsnd_of_data *of_data,
1035 struct rsnd_priv *priv)
1036{
1037 struct rcar_snd_info *info = rsnd_priv_to_info(priv);
1038 struct device *dev = rsnd_priv_to_dev(priv);
1039 struct rsnd_src *src;
569 struct device *dev = rsnd_priv_to_dev(priv);
570 struct rsnd_src *src;
1040 struct rsnd_mod_ops *ops;
1041 struct clk *clk;
1042 char name[RSND_SRC_NAME_SIZE];
1043 int i, nr, ret;
1044
571 struct clk *clk;
572 char name[RSND_SRC_NAME_SIZE];
573 int i, nr, ret;
574
1045 ops = NULL;
1046 if (rsnd_is_gen1(priv)) {
1047 ops = &rsnd_src_gen1_ops;
1048 dev_warn(dev, "Gen1 support will be removed soon\n");
1049 }
1050 if (rsnd_is_gen2(priv))
1051 ops = &rsnd_src_gen2_ops;
1052 if (!ops) {
1053 dev_err(dev, "unknown Generation\n");
1054 return -EIO;
1055 }
575 /* This driver doesn't support Gen1 at this point */
576 if (rsnd_is_gen1(priv))
577 return 0;
1056
578
1057 rsnd_of_parse_src(pdev, of_data, priv);
579 node = rsnd_src_of_node(priv);
580 if (!node)
581 return 0; /* not used is not error */
1058
582
1059 /*
1060 * init SRC
1061 */
1062 nr = info->src_info_nr;
1063 if (!nr)
1064 return 0;
583 nr = of_get_child_count(node);
584 if (!nr) {
585 ret = -EINVAL;
586 goto rsnd_src_probe_done;
587 }
1065
1066 src = devm_kzalloc(dev, sizeof(*src) * nr, GFP_KERNEL);
588
589 src = devm_kzalloc(dev, sizeof(*src) * nr, GFP_KERNEL);
1067 if (!src)
1068 return -ENOMEM;
590 if (!src) {
591 ret = -ENOMEM;
592 goto rsnd_src_probe_done;
593 }
1069
1070 priv->src_nr = nr;
1071 priv->src = src;
1072
594
595 priv->src_nr = nr;
596 priv->src = src;
597
1073 for_each_rsnd_src(src, priv, i) {
598 i = 0;
599 for_each_child_of_node(node, np) {
600 src = rsnd_src_get(priv, i);
601
1074 snprintf(name, RSND_SRC_NAME_SIZE, "%s.%d",
1075 SRC_NAME, i);
1076
602 snprintf(name, RSND_SRC_NAME_SIZE, "%s.%d",
603 SRC_NAME, i);
604
605 src->irq = irq_of_parse_and_map(np, 0);
606 if (!src->irq) {
607 ret = -EINVAL;
608 goto rsnd_src_probe_done;
609 }
610
1077 clk = devm_clk_get(dev, name);
611 clk = devm_clk_get(dev, name);
1078 if (IS_ERR(clk))
1079 return PTR_ERR(clk);
612 if (IS_ERR(clk)) {
613 ret = PTR_ERR(clk);
614 goto rsnd_src_probe_done;
615 }
1080
616
1081 src->info = &info->src_info[i];
1082
1083 ret = rsnd_mod_init(priv, rsnd_mod_get(src), ops, clk, RSND_MOD_SRC, i);
617 ret = rsnd_mod_init(priv, rsnd_mod_get(src),
618 &rsnd_src_ops, clk, rsnd_mod_get_status,
619 RSND_MOD_SRC, i);
1084 if (ret)
620 if (ret)
1085 return ret;
621 goto rsnd_src_probe_done;
622
623 i++;
1086 }
1087
624 }
625
1088 return 0;
626 ret = 0;
627
628rsnd_src_probe_done:
629 of_node_put(node);
630
631 return ret;
1089}
1090
632}
633
1091void rsnd_src_remove(struct platform_device *pdev,
1092 struct rsnd_priv *priv)
634void rsnd_src_remove(struct rsnd_priv *priv)
1093{
1094 struct rsnd_src *src;
1095 int i;
1096
1097 for_each_rsnd_src(src, priv, i) {
1098 rsnd_mod_quit(rsnd_mod_get(src));
1099 }
1100}
635{
636 struct rsnd_src *src;
637 int i;
638
639 for_each_rsnd_src(src, priv, i) {
640 rsnd_mod_quit(rsnd_mod_get(src));
641 }
642}