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9#include <linux/clk.h>
10#include <linux/i2c.h>
11#include <linux/module.h>
12#include <linux/of_platform.h>
13#if IS_ENABLED(CONFIG_SND_AC97_CODEC)
14#include <sound/ac97_codec.h>
15#endif
16#include <sound/pcm_params.h>
17#include <sound/soc.h>
18
19#include "fsl_esai.h"
20#include "fsl_sai.h"
21#include "imx-audmux.h"
22
23#include "../codecs/sgtl5000.h"
24#include "../codecs/wm8962.h"
25#include "../codecs/wm8960.h"
26
27#define CS427x_SYSCLK_MCLK 0
28
29#define RX 0
30#define TX 1
31
32
33#define DAI_FMT_BASE (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF)
34
35
36
37
38
39
40
41
42
43struct codec_priv {
44 unsigned long mclk_freq;
45 u32 mclk_id;
46 u32 fll_id;
47 u32 pll_id;
48};
49
50
51
52
53
54
55
56
57
58
59
60struct cpu_priv {
61 unsigned long sysclk_freq[2];
62 u32 sysclk_dir[2];
63 u32 sysclk_id[2];
64 u32 slot_width;
65};
66
67
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81
82
83struct fsl_asoc_card_priv {
84 struct snd_soc_dai_link dai_link[3];
85 struct platform_device *pdev;
86 struct codec_priv codec_priv;
87 struct cpu_priv cpu_priv;
88 struct snd_soc_card card;
89 u32 sample_rate;
90 snd_pcm_format_t sample_format;
91 u32 asrc_rate;
92 snd_pcm_format_t asrc_format;
93 u32 dai_fmt;
94 char name[32];
95};
96
97
98
99
100
101
102
103
104static const struct snd_soc_dapm_route audio_map[] = {
105
106 {"Playback", NULL, "CPU-Playback"},
107 {"CPU-Capture", NULL, "Capture"},
108
109 {"CPU-Playback", NULL, "ASRC-Playback"},
110 {"ASRC-Capture", NULL, "CPU-Capture"},
111};
112
113static const struct snd_soc_dapm_route audio_map_ac97[] = {
114
115 {"Playback", NULL, "AC97 Playback"},
116 {"AC97 Capture", NULL, "Capture"},
117
118 {"AC97 Playback", NULL, "ASRC-Playback"},
119 {"ASRC-Capture", NULL, "AC97 Capture"},
120};
121
122
123static const struct snd_soc_dapm_widget fsl_asoc_card_dapm_widgets[] = {
124 SND_SOC_DAPM_LINE("Line Out Jack", NULL),
125 SND_SOC_DAPM_LINE("Line In Jack", NULL),
126 SND_SOC_DAPM_HP("Headphone Jack", NULL),
127 SND_SOC_DAPM_SPK("Ext Spk", NULL),
128 SND_SOC_DAPM_MIC("Mic Jack", NULL),
129 SND_SOC_DAPM_MIC("AMIC", NULL),
130 SND_SOC_DAPM_MIC("DMIC", NULL),
131};
132
133static bool fsl_asoc_card_is_ac97(struct fsl_asoc_card_priv *priv)
134{
135 return priv->dai_fmt == SND_SOC_DAIFMT_AC97;
136}
137
138static int fsl_asoc_card_hw_params(struct snd_pcm_substream *substream,
139 struct snd_pcm_hw_params *params)
140{
141 struct snd_soc_pcm_runtime *rtd = substream->private_data;
142 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
143 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
144 struct cpu_priv *cpu_priv = &priv->cpu_priv;
145 struct device *dev = rtd->card->dev;
146 int ret;
147
148 priv->sample_rate = params_rate(params);
149 priv->sample_format = params_format(params);
150
151
152
153
154
155
156 if ((priv->card.set_bias_level &&
157 priv->dai_fmt & SND_SOC_DAIFMT_CBM_CFM) ||
158 fsl_asoc_card_is_ac97(priv))
159 return 0;
160
161
162 ret = snd_soc_dai_set_sysclk(rtd->cpu_dai, cpu_priv->sysclk_id[tx],
163 cpu_priv->sysclk_freq[tx],
164 cpu_priv->sysclk_dir[tx]);
165 if (ret && ret != -ENOTSUPP) {
166 dev_err(dev, "failed to set sysclk for cpu dai\n");
167 return ret;
168 }
169
170 if (cpu_priv->slot_width) {
171 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2,
172 cpu_priv->slot_width);
173 if (ret && ret != -ENOTSUPP) {
174 dev_err(dev, "failed to set TDM slot for cpu dai\n");
175 return ret;
176 }
177 }
178
179 return 0;
180}
181
182static const struct snd_soc_ops fsl_asoc_card_ops = {
183 .hw_params = fsl_asoc_card_hw_params,
184};
185
186static int be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
187 struct snd_pcm_hw_params *params)
188{
189 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
190 struct snd_interval *rate;
191 struct snd_mask *mask;
192
193 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
194 rate->max = rate->min = priv->asrc_rate;
195
196 mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
197 snd_mask_none(mask);
198 snd_mask_set_format(mask, priv->asrc_format);
199
200 return 0;
201}
202
203static struct snd_soc_dai_link fsl_asoc_card_dai[] = {
204
205 {
206 .name = "HiFi",
207 .stream_name = "HiFi",
208 .ops = &fsl_asoc_card_ops,
209 },
210
211 {
212 .name = "HiFi-ASRC-FE",
213 .stream_name = "HiFi-ASRC-FE",
214 .codec_name = "snd-soc-dummy",
215 .codec_dai_name = "snd-soc-dummy-dai",
216 .dpcm_playback = 1,
217 .dpcm_capture = 1,
218 .dynamic = 1,
219 },
220 {
221 .name = "HiFi-ASRC-BE",
222 .stream_name = "HiFi-ASRC-BE",
223 .platform_name = "snd-soc-dummy",
224 .be_hw_params_fixup = be_hw_params_fixup,
225 .ops = &fsl_asoc_card_ops,
226 .dpcm_playback = 1,
227 .dpcm_capture = 1,
228 .no_pcm = 1,
229 },
230};
231
232static int fsl_asoc_card_set_bias_level(struct snd_soc_card *card,
233 struct snd_soc_dapm_context *dapm,
234 enum snd_soc_bias_level level)
235{
236 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(card);
237 struct snd_soc_pcm_runtime *rtd;
238 struct snd_soc_dai *codec_dai;
239 struct codec_priv *codec_priv = &priv->codec_priv;
240 struct device *dev = card->dev;
241 unsigned int pll_out;
242 int ret;
243
244 rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
245 codec_dai = rtd->codec_dai;
246 if (dapm->dev != codec_dai->dev)
247 return 0;
248
249 switch (level) {
250 case SND_SOC_BIAS_PREPARE:
251 if (dapm->bias_level != SND_SOC_BIAS_STANDBY)
252 break;
253
254 if (priv->sample_format == SNDRV_PCM_FORMAT_S24_LE)
255 pll_out = priv->sample_rate * 384;
256 else
257 pll_out = priv->sample_rate * 256;
258
259 ret = snd_soc_dai_set_pll(codec_dai, codec_priv->pll_id,
260 codec_priv->mclk_id,
261 codec_priv->mclk_freq, pll_out);
262 if (ret) {
263 dev_err(dev, "failed to start FLL: %d\n", ret);
264 return ret;
265 }
266
267 ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->fll_id,
268 pll_out, SND_SOC_CLOCK_IN);
269 if (ret && ret != -ENOTSUPP) {
270 dev_err(dev, "failed to set SYSCLK: %d\n", ret);
271 return ret;
272 }
273 break;
274
275 case SND_SOC_BIAS_STANDBY:
276 if (dapm->bias_level != SND_SOC_BIAS_PREPARE)
277 break;
278
279 ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->mclk_id,
280 codec_priv->mclk_freq,
281 SND_SOC_CLOCK_IN);
282 if (ret && ret != -ENOTSUPP) {
283 dev_err(dev, "failed to switch away from FLL: %d\n", ret);
284 return ret;
285 }
286
287 ret = snd_soc_dai_set_pll(codec_dai, codec_priv->pll_id, 0, 0, 0);
288 if (ret) {
289 dev_err(dev, "failed to stop FLL: %d\n", ret);
290 return ret;
291 }
292 break;
293
294 default:
295 break;
296 }
297
298 return 0;
299}
300
301static int fsl_asoc_card_audmux_init(struct device_node *np,
302 struct fsl_asoc_card_priv *priv)
303{
304 struct device *dev = &priv->pdev->dev;
305 u32 int_ptcr = 0, ext_ptcr = 0;
306 int int_port, ext_port;
307 int ret;
308
309 ret = of_property_read_u32(np, "mux-int-port", &int_port);
310 if (ret) {
311 dev_err(dev, "mux-int-port missing or invalid\n");
312 return ret;
313 }
314 ret = of_property_read_u32(np, "mux-ext-port", &ext_port);
315 if (ret) {
316 dev_err(dev, "mux-ext-port missing or invalid\n");
317 return ret;
318 }
319
320
321
322
323
324 int_port--;
325 ext_port--;
326
327
328
329
330
331
332 switch (priv->dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) {
333 case SND_SOC_DAIFMT_CBM_CFM:
334 int_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | ext_port) |
335 IMX_AUDMUX_V2_PTCR_RCSEL(8 | ext_port) |
336 IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
337 IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
338 IMX_AUDMUX_V2_PTCR_RFSDIR |
339 IMX_AUDMUX_V2_PTCR_RCLKDIR |
340 IMX_AUDMUX_V2_PTCR_TFSDIR |
341 IMX_AUDMUX_V2_PTCR_TCLKDIR;
342 break;
343 case SND_SOC_DAIFMT_CBM_CFS:
344 int_ptcr = IMX_AUDMUX_V2_PTCR_RCSEL(8 | ext_port) |
345 IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
346 IMX_AUDMUX_V2_PTCR_RCLKDIR |
347 IMX_AUDMUX_V2_PTCR_TCLKDIR;
348 ext_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | int_port) |
349 IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
350 IMX_AUDMUX_V2_PTCR_RFSDIR |
351 IMX_AUDMUX_V2_PTCR_TFSDIR;
352 break;
353 case SND_SOC_DAIFMT_CBS_CFM:
354 int_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | ext_port) |
355 IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
356 IMX_AUDMUX_V2_PTCR_RFSDIR |
357 IMX_AUDMUX_V2_PTCR_TFSDIR;
358 ext_ptcr = IMX_AUDMUX_V2_PTCR_RCSEL(8 | int_port) |
359 IMX_AUDMUX_V2_PTCR_TCSEL(int_port) |
360 IMX_AUDMUX_V2_PTCR_RCLKDIR |
361 IMX_AUDMUX_V2_PTCR_TCLKDIR;
362 break;
363 case SND_SOC_DAIFMT_CBS_CFS:
364 ext_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | int_port) |
365 IMX_AUDMUX_V2_PTCR_RCSEL(8 | int_port) |
366 IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
367 IMX_AUDMUX_V2_PTCR_TCSEL(int_port) |
368 IMX_AUDMUX_V2_PTCR_RFSDIR |
369 IMX_AUDMUX_V2_PTCR_RCLKDIR |
370 IMX_AUDMUX_V2_PTCR_TFSDIR |
371 IMX_AUDMUX_V2_PTCR_TCLKDIR;
372 break;
373 default:
374 if (!fsl_asoc_card_is_ac97(priv))
375 return -EINVAL;
376 }
377
378 if (fsl_asoc_card_is_ac97(priv)) {
379 int_ptcr = IMX_AUDMUX_V2_PTCR_SYN |
380 IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
381 IMX_AUDMUX_V2_PTCR_TCLKDIR;
382 ext_ptcr = IMX_AUDMUX_V2_PTCR_SYN |
383 IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
384 IMX_AUDMUX_V2_PTCR_TFSDIR;
385 }
386
387
388 if (!fsl_asoc_card_is_ac97(priv)) {
389 unsigned int pdcr =
390 IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port);
391
392 ret = imx_audmux_v2_configure_port(int_port, 0,
393 pdcr);
394 if (ret) {
395 dev_err(dev, "audmux internal port setup failed\n");
396 return ret;
397 }
398 }
399
400 ret = imx_audmux_v2_configure_port(int_port, int_ptcr,
401 IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port));
402 if (ret) {
403 dev_err(dev, "audmux internal port setup failed\n");
404 return ret;
405 }
406
407 if (!fsl_asoc_card_is_ac97(priv)) {
408 unsigned int pdcr =
409 IMX_AUDMUX_V2_PDCR_RXDSEL(int_port);
410
411 ret = imx_audmux_v2_configure_port(ext_port, 0,
412 pdcr);
413 if (ret) {
414 dev_err(dev, "audmux external port setup failed\n");
415 return ret;
416 }
417 }
418
419 ret = imx_audmux_v2_configure_port(ext_port, ext_ptcr,
420 IMX_AUDMUX_V2_PDCR_RXDSEL(int_port));
421 if (ret) {
422 dev_err(dev, "audmux external port setup failed\n");
423 return ret;
424 }
425
426 return 0;
427}
428
429static int fsl_asoc_card_late_probe(struct snd_soc_card *card)
430{
431 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(card);
432 struct snd_soc_pcm_runtime *rtd = list_first_entry(
433 &card->rtd_list, struct snd_soc_pcm_runtime, list);
434 struct snd_soc_dai *codec_dai = rtd->codec_dai;
435 struct codec_priv *codec_priv = &priv->codec_priv;
436 struct device *dev = card->dev;
437 int ret;
438
439 if (fsl_asoc_card_is_ac97(priv)) {
440#if IS_ENABLED(CONFIG_SND_AC97_CODEC)
441 struct snd_soc_component *component = rtd->codec_dai->component;
442 struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
443
444
445
446
447
448
449 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
450 AC97_EA_SPSA_SLOT_MASK, AC97_EA_SPSA_3_4);
451#endif
452
453 return 0;
454 }
455
456 ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->mclk_id,
457 codec_priv->mclk_freq, SND_SOC_CLOCK_IN);
458 if (ret && ret != -ENOTSUPP) {
459 dev_err(dev, "failed to set sysclk in %s\n", __func__);
460 return ret;
461 }
462
463 return 0;
464}
465
466static int fsl_asoc_card_probe(struct platform_device *pdev)
467{
468 struct device_node *cpu_np, *codec_np, *asrc_np;
469 struct device_node *np = pdev->dev.of_node;
470 struct platform_device *asrc_pdev = NULL;
471 struct platform_device *cpu_pdev;
472 struct fsl_asoc_card_priv *priv;
473 struct i2c_client *codec_dev;
474 const char *codec_dai_name;
475 u32 width;
476 int ret;
477
478 priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
479 if (!priv)
480 return -ENOMEM;
481
482 cpu_np = of_parse_phandle(np, "audio-cpu", 0);
483
484 if (!cpu_np)
485 cpu_np = of_parse_phandle(np, "ssi-controller", 0);
486 if (!cpu_np) {
487 dev_err(&pdev->dev, "CPU phandle missing or invalid\n");
488 ret = -EINVAL;
489 goto fail;
490 }
491
492 cpu_pdev = of_find_device_by_node(cpu_np);
493 if (!cpu_pdev) {
494 dev_err(&pdev->dev, "failed to find CPU DAI device\n");
495 ret = -EINVAL;
496 goto fail;
497 }
498
499 codec_np = of_parse_phandle(np, "audio-codec", 0);
500 if (codec_np)
501 codec_dev = of_find_i2c_device_by_node(codec_np);
502 else
503 codec_dev = NULL;
504
505 asrc_np = of_parse_phandle(np, "audio-asrc", 0);
506 if (asrc_np)
507 asrc_pdev = of_find_device_by_node(asrc_np);
508
509
510 if (codec_dev) {
511 struct clk *codec_clk = clk_get(&codec_dev->dev, NULL);
512
513 if (!IS_ERR(codec_clk)) {
514 priv->codec_priv.mclk_freq = clk_get_rate(codec_clk);
515 clk_put(codec_clk);
516 }
517 }
518
519
520 priv->sample_rate = 44100;
521 priv->sample_format = SNDRV_PCM_FORMAT_S16_LE;
522
523
524 priv->dai_fmt = DAI_FMT_BASE;
525
526
527 if (of_device_is_compatible(np, "fsl,imx-audio-cs42888")) {
528 codec_dai_name = "cs42888";
529 priv->card.set_bias_level = NULL;
530 priv->cpu_priv.sysclk_freq[TX] = priv->codec_priv.mclk_freq;
531 priv->cpu_priv.sysclk_freq[RX] = priv->codec_priv.mclk_freq;
532 priv->cpu_priv.sysclk_dir[TX] = SND_SOC_CLOCK_OUT;
533 priv->cpu_priv.sysclk_dir[RX] = SND_SOC_CLOCK_OUT;
534 priv->cpu_priv.slot_width = 32;
535 priv->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
536 } else if (of_device_is_compatible(np, "fsl,imx-audio-cs427x")) {
537 codec_dai_name = "cs4271-hifi";
538 priv->codec_priv.mclk_id = CS427x_SYSCLK_MCLK;
539 priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
540 } else if (of_device_is_compatible(np, "fsl,imx-audio-sgtl5000")) {
541 codec_dai_name = "sgtl5000";
542 priv->codec_priv.mclk_id = SGTL5000_SYSCLK;
543 priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
544 } else if (of_device_is_compatible(np, "fsl,imx-audio-wm8962")) {
545 codec_dai_name = "wm8962";
546 priv->card.set_bias_level = fsl_asoc_card_set_bias_level;
547 priv->codec_priv.mclk_id = WM8962_SYSCLK_MCLK;
548 priv->codec_priv.fll_id = WM8962_SYSCLK_FLL;
549 priv->codec_priv.pll_id = WM8962_FLL;
550 priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
551 } else if (of_device_is_compatible(np, "fsl,imx-audio-wm8960")) {
552 codec_dai_name = "wm8960-hifi";
553 priv->card.set_bias_level = fsl_asoc_card_set_bias_level;
554 priv->codec_priv.fll_id = WM8960_SYSCLK_AUTO;
555 priv->codec_priv.pll_id = WM8960_SYSCLK_AUTO;
556 priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
557 } else if (of_device_is_compatible(np, "fsl,imx-audio-ac97")) {
558 codec_dai_name = "ac97-hifi";
559 priv->card.set_bias_level = NULL;
560 priv->dai_fmt = SND_SOC_DAIFMT_AC97;
561 } else {
562 dev_err(&pdev->dev, "unknown Device Tree compatible\n");
563 ret = -EINVAL;
564 goto asrc_fail;
565 }
566
567 if (!fsl_asoc_card_is_ac97(priv) && !codec_dev) {
568 dev_err(&pdev->dev, "failed to find codec device\n");
569 ret = -EINVAL;
570 goto asrc_fail;
571 }
572
573
574 if (strstr(cpu_np->name, "ssi")) {
575
576 ret = fsl_asoc_card_audmux_init(np, priv);
577 if (ret) {
578 dev_err(&pdev->dev, "failed to init audmux\n");
579 goto asrc_fail;
580 }
581 } else if (strstr(cpu_np->name, "esai")) {
582 priv->cpu_priv.sysclk_id[1] = ESAI_HCKT_EXTAL;
583 priv->cpu_priv.sysclk_id[0] = ESAI_HCKR_EXTAL;
584 } else if (strstr(cpu_np->name, "sai")) {
585 priv->cpu_priv.sysclk_id[1] = FSL_SAI_CLK_MAST1;
586 priv->cpu_priv.sysclk_id[0] = FSL_SAI_CLK_MAST1;
587 }
588
589 snprintf(priv->name, sizeof(priv->name), "%s-audio",
590 fsl_asoc_card_is_ac97(priv) ? "ac97" :
591 codec_dev->name);
592
593
594 priv->pdev = pdev;
595 priv->card.dev = &pdev->dev;
596 priv->card.name = priv->name;
597 priv->card.dai_link = priv->dai_link;
598 priv->card.dapm_routes = fsl_asoc_card_is_ac97(priv) ?
599 audio_map_ac97 : audio_map;
600 priv->card.late_probe = fsl_asoc_card_late_probe;
601 priv->card.num_dapm_routes = ARRAY_SIZE(audio_map);
602 priv->card.dapm_widgets = fsl_asoc_card_dapm_widgets;
603 priv->card.num_dapm_widgets = ARRAY_SIZE(fsl_asoc_card_dapm_widgets);
604
605
606 if (!asrc_pdev)
607 priv->card.num_dapm_routes /= 2;
608
609 memcpy(priv->dai_link, fsl_asoc_card_dai,
610 sizeof(struct snd_soc_dai_link) * ARRAY_SIZE(priv->dai_link));
611
612 ret = snd_soc_of_parse_audio_routing(&priv->card, "audio-routing");
613 if (ret) {
614 dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret);
615 goto asrc_fail;
616 }
617
618
619 priv->dai_link[0].cpu_of_node = cpu_np;
620 priv->dai_link[0].codec_dai_name = codec_dai_name;
621
622 if (!fsl_asoc_card_is_ac97(priv))
623 priv->dai_link[0].codec_of_node = codec_np;
624 else {
625 u32 idx;
626
627 ret = of_property_read_u32(cpu_np, "cell-index", &idx);
628 if (ret) {
629 dev_err(&pdev->dev,
630 "cannot get CPU index property\n");
631 goto asrc_fail;
632 }
633
634 priv->dai_link[0].codec_name =
635 devm_kasprintf(&pdev->dev, GFP_KERNEL,
636 "ac97-codec.%u",
637 (unsigned int)idx);
638 if (!priv->dai_link[0].codec_name) {
639 ret = -ENOMEM;
640 goto asrc_fail;
641 }
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 && ret != -EPROBE_DEFER)
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
