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13#include <linux/clk.h>
14#include <linux/i2c.h>
15#include <linux/module.h>
16#include <linux/of_platform.h>
17#if IS_ENABLED(CONFIG_SND_AC97_CODEC)
18#include <sound/ac97_codec.h>
19#endif
20#include <sound/pcm_params.h>
21#include <sound/soc.h>
22
23#include "fsl_esai.h"
24#include "fsl_sai.h"
25#include "imx-audmux.h"
26
27#include "../codecs/sgtl5000.h"
28#include "../codecs/wm8962.h"
29#include "../codecs/wm8960.h"
30
31#define CS427x_SYSCLK_MCLK 0
32
33#define RX 0
34#define TX 1
35
36
37#define DAI_FMT_BASE (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF)
38
39
40
41
42
43
44
45
46
47struct codec_priv {
48 unsigned long mclk_freq;
49 u32 mclk_id;
50 u32 fll_id;
51 u32 pll_id;
52};
53
54
55
56
57
58
59
60
61
62
63
64struct cpu_priv {
65 unsigned long sysclk_freq[2];
66 u32 sysclk_dir[2];
67 u32 sysclk_id[2];
68 u32 slot_width;
69};
70
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85
86
87struct fsl_asoc_card_priv {
88 struct snd_soc_dai_link dai_link[3];
89 struct platform_device *pdev;
90 struct codec_priv codec_priv;
91 struct cpu_priv cpu_priv;
92 struct snd_soc_card card;
93 u32 sample_rate;
94 u32 sample_format;
95 u32 asrc_rate;
96 u32 asrc_format;
97 u32 dai_fmt;
98 char name[32];
99};
100
101
102
103
104
105
106
107
108static const struct snd_soc_dapm_route audio_map[] = {
109
110 {"Playback", NULL, "CPU-Playback"},
111 {"CPU-Capture", NULL, "Capture"},
112
113 {"CPU-Playback", NULL, "ASRC-Playback"},
114 {"ASRC-Capture", NULL, "CPU-Capture"},
115};
116
117static const struct snd_soc_dapm_route audio_map_ac97[] = {
118
119 {"Playback", NULL, "AC97 Playback"},
120 {"AC97 Capture", NULL, "Capture"},
121
122 {"AC97 Playback", NULL, "ASRC-Playback"},
123 {"ASRC-Capture", NULL, "AC97 Capture"},
124};
125
126
127static const struct snd_soc_dapm_widget fsl_asoc_card_dapm_widgets[] = {
128 SND_SOC_DAPM_LINE("Line Out Jack", NULL),
129 SND_SOC_DAPM_LINE("Line In Jack", NULL),
130 SND_SOC_DAPM_HP("Headphone Jack", NULL),
131 SND_SOC_DAPM_SPK("Ext Spk", NULL),
132 SND_SOC_DAPM_MIC("Mic Jack", NULL),
133 SND_SOC_DAPM_MIC("AMIC", NULL),
134 SND_SOC_DAPM_MIC("DMIC", NULL),
135};
136
137static bool fsl_asoc_card_is_ac97(struct fsl_asoc_card_priv *priv)
138{
139 return priv->dai_fmt == SND_SOC_DAIFMT_AC97;
140}
141
142static int fsl_asoc_card_hw_params(struct snd_pcm_substream *substream,
143 struct snd_pcm_hw_params *params)
144{
145 struct snd_soc_pcm_runtime *rtd = substream->private_data;
146 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
147 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
148 struct cpu_priv *cpu_priv = &priv->cpu_priv;
149 struct device *dev = rtd->card->dev;
150 int ret;
151
152 priv->sample_rate = params_rate(params);
153 priv->sample_format = params_format(params);
154
155
156
157
158
159
160 if ((priv->card.set_bias_level &&
161 priv->dai_fmt & SND_SOC_DAIFMT_CBM_CFM) ||
162 fsl_asoc_card_is_ac97(priv))
163 return 0;
164
165
166 ret = snd_soc_dai_set_sysclk(rtd->cpu_dai, cpu_priv->sysclk_id[tx],
167 cpu_priv->sysclk_freq[tx],
168 cpu_priv->sysclk_dir[tx]);
169 if (ret) {
170 dev_err(dev, "failed to set sysclk for cpu dai\n");
171 return ret;
172 }
173
174 if (cpu_priv->slot_width) {
175 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2,
176 cpu_priv->slot_width);
177 if (ret) {
178 dev_err(dev, "failed to set TDM slot for cpu dai\n");
179 return ret;
180 }
181 }
182
183 return 0;
184}
185
186static struct snd_soc_ops fsl_asoc_card_ops = {
187 .hw_params = fsl_asoc_card_hw_params,
188};
189
190static int be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
191 struct snd_pcm_hw_params *params)
192{
193 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
194 struct snd_interval *rate;
195 struct snd_mask *mask;
196
197 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
198 rate->max = rate->min = priv->asrc_rate;
199
200 mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
201 snd_mask_none(mask);
202 snd_mask_set(mask, priv->asrc_format);
203
204 return 0;
205}
206
207static struct snd_soc_dai_link fsl_asoc_card_dai[] = {
208
209 {
210 .name = "HiFi",
211 .stream_name = "HiFi",
212 .ops = &fsl_asoc_card_ops,
213 },
214
215 {
216 .name = "HiFi-ASRC-FE",
217 .stream_name = "HiFi-ASRC-FE",
218 .codec_name = "snd-soc-dummy",
219 .codec_dai_name = "snd-soc-dummy-dai",
220 .dpcm_playback = 1,
221 .dpcm_capture = 1,
222 .dynamic = 1,
223 },
224 {
225 .name = "HiFi-ASRC-BE",
226 .stream_name = "HiFi-ASRC-BE",
227 .platform_name = "snd-soc-dummy",
228 .be_hw_params_fixup = be_hw_params_fixup,
229 .ops = &fsl_asoc_card_ops,
230 .dpcm_playback = 1,
231 .dpcm_capture = 1,
232 .no_pcm = 1,
233 },
234};
235
236static int fsl_asoc_card_set_bias_level(struct snd_soc_card *card,
237 struct snd_soc_dapm_context *dapm,
238 enum snd_soc_bias_level level)
239{
240 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(card);
241 struct snd_soc_pcm_runtime *rtd;
242 struct snd_soc_dai *codec_dai;
243 struct codec_priv *codec_priv = &priv->codec_priv;
244 struct device *dev = card->dev;
245 unsigned int pll_out;
246 int ret;
247
248 rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
249 codec_dai = rtd->codec_dai;
250 if (dapm->dev != codec_dai->dev)
251 return 0;
252
253 switch (level) {
254 case SND_SOC_BIAS_PREPARE:
255 if (dapm->bias_level != SND_SOC_BIAS_STANDBY)
256 break;
257
258 if (priv->sample_format == SNDRV_PCM_FORMAT_S24_LE)
259 pll_out = priv->sample_rate * 384;
260 else
261 pll_out = priv->sample_rate * 256;
262
263 ret = snd_soc_dai_set_pll(codec_dai, codec_priv->pll_id,
264 codec_priv->mclk_id,
265 codec_priv->mclk_freq, pll_out);
266 if (ret) {
267 dev_err(dev, "failed to start FLL: %d\n", ret);
268 return ret;
269 }
270
271 ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->fll_id,
272 pll_out, SND_SOC_CLOCK_IN);
273 if (ret) {
274 dev_err(dev, "failed to set SYSCLK: %d\n", ret);
275 return ret;
276 }
277 break;
278
279 case SND_SOC_BIAS_STANDBY:
280 if (dapm->bias_level != SND_SOC_BIAS_PREPARE)
281 break;
282
283 ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->mclk_id,
284 codec_priv->mclk_freq,
285 SND_SOC_CLOCK_IN);
286 if (ret) {
287 dev_err(dev, "failed to switch away from FLL: %d\n", ret);
288 return ret;
289 }
290
291 ret = snd_soc_dai_set_pll(codec_dai, codec_priv->pll_id, 0, 0, 0);
292 if (ret) {
293 dev_err(dev, "failed to stop FLL: %d\n", ret);
294 return ret;
295 }
296 break;
297
298 default:
299 break;
300 }
301
302 return 0;
303}
304
305static int fsl_asoc_card_audmux_init(struct device_node *np,
306 struct fsl_asoc_card_priv *priv)
307{
308 struct device *dev = &priv->pdev->dev;
309 u32 int_ptcr = 0, ext_ptcr = 0;
310 int int_port, ext_port;
311 int ret;
312
313 ret = of_property_read_u32(np, "mux-int-port", &int_port);
314 if (ret) {
315 dev_err(dev, "mux-int-port missing or invalid\n");
316 return ret;
317 }
318 ret = of_property_read_u32(np, "mux-ext-port", &ext_port);
319 if (ret) {
320 dev_err(dev, "mux-ext-port missing or invalid\n");
321 return ret;
322 }
323
324
325
326
327
328 int_port--;
329 ext_port--;
330
331
332
333
334
335
336 switch (priv->dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) {
337 case SND_SOC_DAIFMT_CBM_CFM:
338 int_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | ext_port) |
339 IMX_AUDMUX_V2_PTCR_RCSEL(8 | ext_port) |
340 IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
341 IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
342 IMX_AUDMUX_V2_PTCR_RFSDIR |
343 IMX_AUDMUX_V2_PTCR_RCLKDIR |
344 IMX_AUDMUX_V2_PTCR_TFSDIR |
345 IMX_AUDMUX_V2_PTCR_TCLKDIR;
346 break;
347 case SND_SOC_DAIFMT_CBM_CFS:
348 int_ptcr = IMX_AUDMUX_V2_PTCR_RCSEL(8 | ext_port) |
349 IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
350 IMX_AUDMUX_V2_PTCR_RCLKDIR |
351 IMX_AUDMUX_V2_PTCR_TCLKDIR;
352 ext_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | int_port) |
353 IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
354 IMX_AUDMUX_V2_PTCR_RFSDIR |
355 IMX_AUDMUX_V2_PTCR_TFSDIR;
356 break;
357 case SND_SOC_DAIFMT_CBS_CFM:
358 int_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | ext_port) |
359 IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
360 IMX_AUDMUX_V2_PTCR_RFSDIR |
361 IMX_AUDMUX_V2_PTCR_TFSDIR;
362 ext_ptcr = IMX_AUDMUX_V2_PTCR_RCSEL(8 | int_port) |
363 IMX_AUDMUX_V2_PTCR_TCSEL(int_port) |
364 IMX_AUDMUX_V2_PTCR_RCLKDIR |
365 IMX_AUDMUX_V2_PTCR_TCLKDIR;
366 break;
367 case SND_SOC_DAIFMT_CBS_CFS:
368 ext_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | int_port) |
369 IMX_AUDMUX_V2_PTCR_RCSEL(8 | int_port) |
370 IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
371 IMX_AUDMUX_V2_PTCR_TCSEL(int_port) |
372 IMX_AUDMUX_V2_PTCR_RFSDIR |
373 IMX_AUDMUX_V2_PTCR_RCLKDIR |
374 IMX_AUDMUX_V2_PTCR_TFSDIR |
375 IMX_AUDMUX_V2_PTCR_TCLKDIR;
376 break;
377 default:
378 if (!fsl_asoc_card_is_ac97(priv))
379 return -EINVAL;
380 }
381
382 if (fsl_asoc_card_is_ac97(priv)) {
383 int_ptcr = IMX_AUDMUX_V2_PTCR_SYN |
384 IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
385 IMX_AUDMUX_V2_PTCR_TCLKDIR;
386 ext_ptcr = IMX_AUDMUX_V2_PTCR_SYN |
387 IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
388 IMX_AUDMUX_V2_PTCR_TFSDIR;
389 }
390
391
392 if (!fsl_asoc_card_is_ac97(priv)) {
393 unsigned int pdcr =
394 IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port);
395
396 ret = imx_audmux_v2_configure_port(int_port, 0,
397 pdcr);
398 if (ret) {
399 dev_err(dev, "audmux internal port setup failed\n");
400 return ret;
401 }
402 }
403
404 ret = imx_audmux_v2_configure_port(int_port, int_ptcr,
405 IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port));
406 if (ret) {
407 dev_err(dev, "audmux internal port setup failed\n");
408 return ret;
409 }
410
411 if (!fsl_asoc_card_is_ac97(priv)) {
412 unsigned int pdcr =
413 IMX_AUDMUX_V2_PDCR_RXDSEL(int_port);
414
415 ret = imx_audmux_v2_configure_port(ext_port, 0,
416 pdcr);
417 if (ret) {
418 dev_err(dev, "audmux external port setup failed\n");
419 return ret;
420 }
421 }
422
423 ret = imx_audmux_v2_configure_port(ext_port, ext_ptcr,
424 IMX_AUDMUX_V2_PDCR_RXDSEL(int_port));
425 if (ret) {
426 dev_err(dev, "audmux external port setup failed\n");
427 return ret;
428 }
429
430 return 0;
431}
432
433static int fsl_asoc_card_late_probe(struct snd_soc_card *card)
434{
435 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(card);
436 struct snd_soc_pcm_runtime *rtd = list_first_entry(
437 &card->rtd_list, struct snd_soc_pcm_runtime, list);
438 struct snd_soc_dai *codec_dai = rtd->codec_dai;
439 struct codec_priv *codec_priv = &priv->codec_priv;
440 struct device *dev = card->dev;
441 int ret;
442
443 if (fsl_asoc_card_is_ac97(priv)) {
444#if IS_ENABLED(CONFIG_SND_AC97_CODEC)
445 struct snd_soc_codec *codec = rtd->codec;
446 struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
447
448
449
450
451
452
453 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
454 AC97_EA_SPSA_SLOT_MASK, AC97_EA_SPSA_3_4);
455#endif
456
457 return 0;
458 }
459
460 ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->mclk_id,
461 codec_priv->mclk_freq, SND_SOC_CLOCK_IN);
462 if (ret) {
463 dev_err(dev, "failed to set sysclk in %s\n", __func__);
464 return ret;
465 }
466
467 return 0;
468}
469
470static int fsl_asoc_card_probe(struct platform_device *pdev)
471{
472 struct device_node *cpu_np, *codec_np, *asrc_np;
473 struct device_node *np = pdev->dev.of_node;
474 struct platform_device *asrc_pdev = NULL;
475 struct platform_device *cpu_pdev;
476 struct fsl_asoc_card_priv *priv;
477 struct i2c_client *codec_dev;
478 const char *codec_dai_name;
479 u32 width;
480 int ret;
481
482 priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
483 if (!priv)
484 return -ENOMEM;
485
486 cpu_np = of_parse_phandle(np, "audio-cpu", 0);
487
488 if (!cpu_np)
489 cpu_np = of_parse_phandle(np, "ssi-controller", 0);
490 if (!cpu_np) {
491 dev_err(&pdev->dev, "CPU phandle missing or invalid\n");
492 ret = -EINVAL;
493 goto fail;
494 }
495
496 cpu_pdev = of_find_device_by_node(cpu_np);
497 if (!cpu_pdev) {
498 dev_err(&pdev->dev, "failed to find CPU DAI device\n");
499 ret = -EINVAL;
500 goto fail;
501 }
502
503 codec_np = of_parse_phandle(np, "audio-codec", 0);
504 if (codec_np)
505 codec_dev = of_find_i2c_device_by_node(codec_np);
506 else
507 codec_dev = NULL;
508
509 asrc_np = of_parse_phandle(np, "audio-asrc", 0);
510 if (asrc_np)
511 asrc_pdev = of_find_device_by_node(asrc_np);
512
513
514 if (codec_dev) {
515 struct clk *codec_clk = clk_get(&codec_dev->dev, NULL);
516
517 if (!IS_ERR(codec_clk)) {
518 priv->codec_priv.mclk_freq = clk_get_rate(codec_clk);
519 clk_put(codec_clk);
520 }
521 }
522
523
524 priv->sample_rate = 44100;
525 priv->sample_format = SNDRV_PCM_FORMAT_S16_LE;
526
527
528 priv->dai_fmt = DAI_FMT_BASE;
529
530
531 if (of_device_is_compatible(np, "fsl,imx-audio-cs42888")) {
532 codec_dai_name = "cs42888";
533 priv->card.set_bias_level = NULL;
534 priv->cpu_priv.sysclk_freq[TX] = priv->codec_priv.mclk_freq;
535 priv->cpu_priv.sysclk_freq[RX] = priv->codec_priv.mclk_freq;
536 priv->cpu_priv.sysclk_dir[TX] = SND_SOC_CLOCK_OUT;
537 priv->cpu_priv.sysclk_dir[RX] = SND_SOC_CLOCK_OUT;
538 priv->cpu_priv.slot_width = 32;
539 priv->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
540 } else if (of_device_is_compatible(np, "fsl,imx-audio-cs427x")) {
541 codec_dai_name = "cs4271-hifi";
542 priv->codec_priv.mclk_id = CS427x_SYSCLK_MCLK;
543 priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
544 } else if (of_device_is_compatible(np, "fsl,imx-audio-sgtl5000")) {
545 codec_dai_name = "sgtl5000";
546 priv->codec_priv.mclk_id = SGTL5000_SYSCLK;
547 priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
548 } else if (of_device_is_compatible(np, "fsl,imx-audio-wm8962")) {
549 codec_dai_name = "wm8962";
550 priv->card.set_bias_level = fsl_asoc_card_set_bias_level;
551 priv->codec_priv.mclk_id = WM8962_SYSCLK_MCLK;
552 priv->codec_priv.fll_id = WM8962_SYSCLK_FLL;
553 priv->codec_priv.pll_id = WM8962_FLL;
554 priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
555 } else if (of_device_is_compatible(np, "fsl,imx-audio-wm8960")) {
556 codec_dai_name = "wm8960-hifi";
557 priv->card.set_bias_level = fsl_asoc_card_set_bias_level;
558 priv->codec_priv.fll_id = WM8960_SYSCLK_AUTO;
559 priv->codec_priv.pll_id = WM8960_SYSCLK_AUTO;
560 priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
561 } else if (of_device_is_compatible(np, "fsl,imx-audio-ac97")) {
562 codec_dai_name = "ac97-hifi";
563 priv->card.set_bias_level = NULL;
564 priv->dai_fmt = SND_SOC_DAIFMT_AC97;
565 } else {
566 dev_err(&pdev->dev, "unknown Device Tree compatible\n");
567 ret = -EINVAL;
568 goto asrc_fail;
569 }
570
571 if (!fsl_asoc_card_is_ac97(priv) && !codec_dev) {
572 dev_err(&pdev->dev, "failed to find codec device\n");
573 ret = -EINVAL;
574 goto asrc_fail;
575 }
576
577
578 if (strstr(cpu_np->name, "ssi")) {
579
580 ret = fsl_asoc_card_audmux_init(np, priv);
581 if (ret) {
582 dev_err(&pdev->dev, "failed to init audmux\n");
583 goto asrc_fail;
584 }
585 } else if (strstr(cpu_np->name, "esai")) {
586 priv->cpu_priv.sysclk_id[1] = ESAI_HCKT_EXTAL;
587 priv->cpu_priv.sysclk_id[0] = ESAI_HCKR_EXTAL;
588 } else if (strstr(cpu_np->name, "sai")) {
589 priv->cpu_priv.sysclk_id[1] = FSL_SAI_CLK_MAST1;
590 priv->cpu_priv.sysclk_id[0] = FSL_SAI_CLK_MAST1;
591 }
592
593 snprintf(priv->name, sizeof(priv->name), "%s-audio",
594 fsl_asoc_card_is_ac97(priv) ? "ac97" :
595 codec_dev->name);
596
597
598 priv->pdev = pdev;
599 priv->card.dev = &pdev->dev;
600 priv->card.name = priv->name;
601 priv->card.dai_link = priv->dai_link;
602 priv->card.dapm_routes = fsl_asoc_card_is_ac97(priv) ?
603 audio_map_ac97 : audio_map;
604 priv->card.late_probe = fsl_asoc_card_late_probe;
605 priv->card.num_dapm_routes = ARRAY_SIZE(audio_map);
606 priv->card.dapm_widgets = fsl_asoc_card_dapm_widgets;
607 priv->card.num_dapm_widgets = ARRAY_SIZE(fsl_asoc_card_dapm_widgets);
608
609
610 if (!asrc_pdev)
611 priv->card.num_dapm_routes /= 2;
612
613 memcpy(priv->dai_link, fsl_asoc_card_dai,
614 sizeof(struct snd_soc_dai_link) * ARRAY_SIZE(priv->dai_link));
615
616 ret = snd_soc_of_parse_audio_routing(&priv->card, "audio-routing");
617 if (ret) {
618 dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret);
619 goto asrc_fail;
620 }
621
622
623 priv->dai_link[0].cpu_of_node = cpu_np;
624 priv->dai_link[0].codec_dai_name = codec_dai_name;
625
626 if (!fsl_asoc_card_is_ac97(priv))
627 priv->dai_link[0].codec_of_node = codec_np;
628 else {
629 u32 idx;
630
631 ret = of_property_read_u32(cpu_np, "cell-index", &idx);
632 if (ret) {
633 dev_err(&pdev->dev,
634 "cannot get CPU index property\n");
635 goto asrc_fail;
636 }
637
638 priv->dai_link[0].codec_name =
639 devm_kasprintf(&pdev->dev, GFP_KERNEL,
640 "ac97-codec.%u",
641 (unsigned int)idx);
642 }
643
644 priv->dai_link[0].platform_of_node = cpu_np;
645 priv->dai_link[0].dai_fmt = priv->dai_fmt;
646 priv->card.num_links = 1;
647
648 if (asrc_pdev) {
649
650 priv->dai_link[1].cpu_of_node = asrc_np;
651 priv->dai_link[1].platform_of_node = asrc_np;
652 priv->dai_link[2].codec_dai_name = codec_dai_name;
653 priv->dai_link[2].codec_of_node = codec_np;
654 priv->dai_link[2].codec_name =
655 priv->dai_link[0].codec_name;
656 priv->dai_link[2].cpu_of_node = cpu_np;
657 priv->dai_link[2].dai_fmt = priv->dai_fmt;
658 priv->card.num_links = 3;
659
660 ret = of_property_read_u32(asrc_np, "fsl,asrc-rate",
661 &priv->asrc_rate);
662 if (ret) {
663 dev_err(&pdev->dev, "failed to get output rate\n");
664 ret = -EINVAL;
665 goto asrc_fail;
666 }
667
668 ret = of_property_read_u32(asrc_np, "fsl,asrc-width", &width);
669 if (ret) {
670 dev_err(&pdev->dev, "failed to get output rate\n");
671 ret = -EINVAL;
672 goto asrc_fail;
673 }
674
675 if (width == 24)
676 priv->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
677 else
678 priv->asrc_format = SNDRV_PCM_FORMAT_S16_LE;
679 }
680
681
682 platform_set_drvdata(pdev, priv);
683 snd_soc_card_set_drvdata(&priv->card, priv);
684
685 ret = devm_snd_soc_register_card(&pdev->dev, &priv->card);
686 if (ret)
687 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
688
689asrc_fail:
690 of_node_put(asrc_np);
691 of_node_put(codec_np);
692fail:
693 of_node_put(cpu_np);
694
695 return ret;
696}
697
698static const struct of_device_id fsl_asoc_card_dt_ids[] = {
699 { .compatible = "fsl,imx-audio-ac97", },
700 { .compatible = "fsl,imx-audio-cs42888", },
701 { .compatible = "fsl,imx-audio-cs427x", },
702 { .compatible = "fsl,imx-audio-sgtl5000", },
703 { .compatible = "fsl,imx-audio-wm8962", },
704 { .compatible = "fsl,imx-audio-wm8960", },
705 {}
706};
707MODULE_DEVICE_TABLE(of, fsl_asoc_card_dt_ids);
708
709static struct platform_driver fsl_asoc_card_driver = {
710 .probe = fsl_asoc_card_probe,
711 .driver = {
712 .name = "fsl-asoc-card",
713 .pm = &snd_soc_pm_ops,
714 .of_match_table = fsl_asoc_card_dt_ids,
715 },
716};
717module_platform_driver(fsl_asoc_card_driver);
718
719MODULE_DESCRIPTION("Freescale Generic ASoC Sound Card driver with ASRC");
720MODULE_AUTHOR("Nicolin Chen <nicoleotsuka@gmail.com>");
721MODULE_ALIAS("platform:fsl-asoc-card");
722MODULE_LICENSE("GPL");
723
