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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 RX 0
32#define TX 1
33
34
35#define DAI_FMT_BASE (SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF)
36
37
38
39
40
41
42
43
44
45struct codec_priv {
46 unsigned long mclk_freq;
47 u32 mclk_id;
48 u32 fll_id;
49 u32 pll_id;
50};
51
52
53
54
55
56
57
58
59
60
61
62struct cpu_priv {
63 unsigned long sysclk_freq[2];
64 u32 sysclk_dir[2];
65 u32 sysclk_id[2];
66 u32 slot_width;
67};
68
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83
84
85struct fsl_asoc_card_priv {
86 struct snd_soc_dai_link dai_link[3];
87 struct platform_device *pdev;
88 struct codec_priv codec_priv;
89 struct cpu_priv cpu_priv;
90 struct snd_soc_card card;
91 u32 sample_rate;
92 u32 sample_format;
93 u32 asrc_rate;
94 u32 asrc_format;
95 u32 dai_fmt;
96 char name[32];
97};
98
99
100
101
102
103static const struct snd_soc_dapm_route audio_map[] = {
104 {"CPU-Playback", NULL, "ASRC-Playback"},
105 {"Playback", NULL, "CPU-Playback"},
106 {"ASRC-Capture", NULL, "CPU-Capture"},
107 {"CPU-Capture", NULL, "Capture"},
108};
109
110
111static const struct snd_soc_dapm_widget fsl_asoc_card_dapm_widgets[] = {
112 SND_SOC_DAPM_LINE("Line Out Jack", NULL),
113 SND_SOC_DAPM_LINE("Line In Jack", NULL),
114 SND_SOC_DAPM_HP("Headphone Jack", NULL),
115 SND_SOC_DAPM_SPK("Ext Spk", NULL),
116 SND_SOC_DAPM_MIC("Mic Jack", NULL),
117 SND_SOC_DAPM_MIC("AMIC", NULL),
118 SND_SOC_DAPM_MIC("DMIC", NULL),
119};
120
121static bool fsl_asoc_card_is_ac97(struct fsl_asoc_card_priv *priv)
122{
123 return priv->dai_fmt == SND_SOC_DAIFMT_AC97;
124}
125
126static int fsl_asoc_card_hw_params(struct snd_pcm_substream *substream,
127 struct snd_pcm_hw_params *params)
128{
129 struct snd_soc_pcm_runtime *rtd = substream->private_data;
130 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
131 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
132 struct cpu_priv *cpu_priv = &priv->cpu_priv;
133 struct device *dev = rtd->card->dev;
134 int ret;
135
136 priv->sample_rate = params_rate(params);
137 priv->sample_format = params_format(params);
138
139
140
141
142
143
144 if ((priv->card.set_bias_level &&
145 priv->dai_fmt & SND_SOC_DAIFMT_CBM_CFM) ||
146 fsl_asoc_card_is_ac97(priv))
147 return 0;
148
149
150 ret = snd_soc_dai_set_sysclk(rtd->cpu_dai, cpu_priv->sysclk_id[tx],
151 cpu_priv->sysclk_freq[tx],
152 cpu_priv->sysclk_dir[tx]);
153 if (ret) {
154 dev_err(dev, "failed to set sysclk for cpu dai\n");
155 return ret;
156 }
157
158 if (cpu_priv->slot_width) {
159 ret = snd_soc_dai_set_tdm_slot(rtd->cpu_dai, 0x3, 0x3, 2,
160 cpu_priv->slot_width);
161 if (ret) {
162 dev_err(dev, "failed to set TDM slot for cpu dai\n");
163 return ret;
164 }
165 }
166
167 return 0;
168}
169
170static struct snd_soc_ops fsl_asoc_card_ops = {
171 .hw_params = fsl_asoc_card_hw_params,
172};
173
174static int be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
175 struct snd_pcm_hw_params *params)
176{
177 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(rtd->card);
178 struct snd_interval *rate;
179 struct snd_mask *mask;
180
181 rate = hw_param_interval(params, SNDRV_PCM_HW_PARAM_RATE);
182 rate->max = rate->min = priv->asrc_rate;
183
184 mask = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
185 snd_mask_none(mask);
186 snd_mask_set(mask, priv->asrc_format);
187
188 return 0;
189}
190
191static struct snd_soc_dai_link fsl_asoc_card_dai[] = {
192
193 {
194 .name = "HiFi",
195 .stream_name = "HiFi",
196 .ops = &fsl_asoc_card_ops,
197 },
198
199 {
200 .name = "HiFi-ASRC-FE",
201 .stream_name = "HiFi-ASRC-FE",
202 .codec_name = "snd-soc-dummy",
203 .codec_dai_name = "snd-soc-dummy-dai",
204 .dpcm_playback = 1,
205 .dpcm_capture = 1,
206 .dynamic = 1,
207 },
208 {
209 .name = "HiFi-ASRC-BE",
210 .stream_name = "HiFi-ASRC-BE",
211 .platform_name = "snd-soc-dummy",
212 .be_hw_params_fixup = be_hw_params_fixup,
213 .ops = &fsl_asoc_card_ops,
214 .dpcm_playback = 1,
215 .dpcm_capture = 1,
216 .no_pcm = 1,
217 },
218};
219
220static int fsl_asoc_card_set_bias_level(struct snd_soc_card *card,
221 struct snd_soc_dapm_context *dapm,
222 enum snd_soc_bias_level level)
223{
224 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(card);
225 struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
226 struct codec_priv *codec_priv = &priv->codec_priv;
227 struct device *dev = card->dev;
228 unsigned int pll_out;
229 int ret;
230
231 if (dapm->dev != codec_dai->dev)
232 return 0;
233
234 switch (level) {
235 case SND_SOC_BIAS_PREPARE:
236 if (dapm->bias_level != SND_SOC_BIAS_STANDBY)
237 break;
238
239 if (priv->sample_format == SNDRV_PCM_FORMAT_S24_LE)
240 pll_out = priv->sample_rate * 384;
241 else
242 pll_out = priv->sample_rate * 256;
243
244 ret = snd_soc_dai_set_pll(codec_dai, codec_priv->pll_id,
245 codec_priv->mclk_id,
246 codec_priv->mclk_freq, pll_out);
247 if (ret) {
248 dev_err(dev, "failed to start FLL: %d\n", ret);
249 return ret;
250 }
251
252 ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->fll_id,
253 pll_out, SND_SOC_CLOCK_IN);
254 if (ret) {
255 dev_err(dev, "failed to set SYSCLK: %d\n", ret);
256 return ret;
257 }
258 break;
259
260 case SND_SOC_BIAS_STANDBY:
261 if (dapm->bias_level != SND_SOC_BIAS_PREPARE)
262 break;
263
264 ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->mclk_id,
265 codec_priv->mclk_freq,
266 SND_SOC_CLOCK_IN);
267 if (ret) {
268 dev_err(dev, "failed to switch away from FLL: %d\n", ret);
269 return ret;
270 }
271
272 ret = snd_soc_dai_set_pll(codec_dai, codec_priv->pll_id, 0, 0, 0);
273 if (ret) {
274 dev_err(dev, "failed to stop FLL: %d\n", ret);
275 return ret;
276 }
277 break;
278
279 default:
280 break;
281 }
282
283 return 0;
284}
285
286static int fsl_asoc_card_audmux_init(struct device_node *np,
287 struct fsl_asoc_card_priv *priv)
288{
289 struct device *dev = &priv->pdev->dev;
290 u32 int_ptcr = 0, ext_ptcr = 0;
291 int int_port, ext_port;
292 int ret;
293
294 ret = of_property_read_u32(np, "mux-int-port", &int_port);
295 if (ret) {
296 dev_err(dev, "mux-int-port missing or invalid\n");
297 return ret;
298 }
299 ret = of_property_read_u32(np, "mux-ext-port", &ext_port);
300 if (ret) {
301 dev_err(dev, "mux-ext-port missing or invalid\n");
302 return ret;
303 }
304
305
306
307
308
309 int_port--;
310 ext_port--;
311
312
313
314
315
316
317 switch (priv->dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) {
318 case SND_SOC_DAIFMT_CBM_CFM:
319 int_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | ext_port) |
320 IMX_AUDMUX_V2_PTCR_RCSEL(8 | ext_port) |
321 IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
322 IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
323 IMX_AUDMUX_V2_PTCR_RFSDIR |
324 IMX_AUDMUX_V2_PTCR_RCLKDIR |
325 IMX_AUDMUX_V2_PTCR_TFSDIR |
326 IMX_AUDMUX_V2_PTCR_TCLKDIR;
327 break;
328 case SND_SOC_DAIFMT_CBM_CFS:
329 int_ptcr = IMX_AUDMUX_V2_PTCR_RCSEL(8 | ext_port) |
330 IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
331 IMX_AUDMUX_V2_PTCR_RCLKDIR |
332 IMX_AUDMUX_V2_PTCR_TCLKDIR;
333 ext_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | int_port) |
334 IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
335 IMX_AUDMUX_V2_PTCR_RFSDIR |
336 IMX_AUDMUX_V2_PTCR_TFSDIR;
337 break;
338 case SND_SOC_DAIFMT_CBS_CFM:
339 int_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | ext_port) |
340 IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
341 IMX_AUDMUX_V2_PTCR_RFSDIR |
342 IMX_AUDMUX_V2_PTCR_TFSDIR;
343 ext_ptcr = IMX_AUDMUX_V2_PTCR_RCSEL(8 | int_port) |
344 IMX_AUDMUX_V2_PTCR_TCSEL(int_port) |
345 IMX_AUDMUX_V2_PTCR_RCLKDIR |
346 IMX_AUDMUX_V2_PTCR_TCLKDIR;
347 break;
348 case SND_SOC_DAIFMT_CBS_CFS:
349 ext_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | int_port) |
350 IMX_AUDMUX_V2_PTCR_RCSEL(8 | int_port) |
351 IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
352 IMX_AUDMUX_V2_PTCR_TCSEL(int_port) |
353 IMX_AUDMUX_V2_PTCR_RFSDIR |
354 IMX_AUDMUX_V2_PTCR_RCLKDIR |
355 IMX_AUDMUX_V2_PTCR_TFSDIR |
356 IMX_AUDMUX_V2_PTCR_TCLKDIR;
357 break;
358 default:
359 if (!fsl_asoc_card_is_ac97(priv))
360 return -EINVAL;
361 }
362
363 if (fsl_asoc_card_is_ac97(priv)) {
364 int_ptcr = IMX_AUDMUX_V2_PTCR_SYN |
365 IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
366 IMX_AUDMUX_V2_PTCR_TCLKDIR;
367 ext_ptcr = IMX_AUDMUX_V2_PTCR_SYN |
368 IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
369 IMX_AUDMUX_V2_PTCR_TFSDIR;
370 }
371
372
373 if (!fsl_asoc_card_is_ac97(priv)) {
374 unsigned int pdcr =
375 IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port);
376
377 ret = imx_audmux_v2_configure_port(int_port, 0,
378 pdcr);
379 if (ret) {
380 dev_err(dev, "audmux internal port setup failed\n");
381 return ret;
382 }
383 }
384
385 ret = imx_audmux_v2_configure_port(int_port, int_ptcr,
386 IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port));
387 if (ret) {
388 dev_err(dev, "audmux internal port setup failed\n");
389 return ret;
390 }
391
392 if (!fsl_asoc_card_is_ac97(priv)) {
393 unsigned int pdcr =
394 IMX_AUDMUX_V2_PDCR_RXDSEL(int_port);
395
396 ret = imx_audmux_v2_configure_port(ext_port, 0,
397 pdcr);
398 if (ret) {
399 dev_err(dev, "audmux external port setup failed\n");
400 return ret;
401 }
402 }
403
404 ret = imx_audmux_v2_configure_port(ext_port, ext_ptcr,
405 IMX_AUDMUX_V2_PDCR_RXDSEL(int_port));
406 if (ret) {
407 dev_err(dev, "audmux external port setup failed\n");
408 return ret;
409 }
410
411 return 0;
412}
413
414static int fsl_asoc_card_late_probe(struct snd_soc_card *card)
415{
416 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(card);
417 struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
418 struct codec_priv *codec_priv = &priv->codec_priv;
419 struct device *dev = card->dev;
420 int ret;
421
422 if (fsl_asoc_card_is_ac97(priv)) {
423#if IS_ENABLED(CONFIG_SND_AC97_CODEC)
424 struct snd_soc_codec *codec = card->rtd[0].codec;
425 struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
426
427
428
429
430
431
432 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
433 AC97_EA_SPSA_SLOT_MASK, AC97_EA_SPSA_3_4);
434#endif
435
436 return 0;
437 }
438
439 ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->mclk_id,
440 codec_priv->mclk_freq, SND_SOC_CLOCK_IN);
441 if (ret) {
442 dev_err(dev, "failed to set sysclk in %s\n", __func__);
443 return ret;
444 }
445
446 return 0;
447}
448
449static int fsl_asoc_card_probe(struct platform_device *pdev)
450{
451 struct device_node *cpu_np, *codec_np, *asrc_np;
452 struct device_node *np = pdev->dev.of_node;
453 struct platform_device *asrc_pdev = NULL;
454 struct platform_device *cpu_pdev;
455 struct fsl_asoc_card_priv *priv;
456 struct i2c_client *codec_dev;
457 const char *codec_dai_name;
458 u32 width;
459 int ret;
460
461 priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
462 if (!priv)
463 return -ENOMEM;
464
465 cpu_np = of_parse_phandle(np, "audio-cpu", 0);
466
467 if (!cpu_np)
468 cpu_np = of_parse_phandle(np, "ssi-controller", 0);
469 if (!cpu_np) {
470 dev_err(&pdev->dev, "CPU phandle missing or invalid\n");
471 ret = -EINVAL;
472 goto fail;
473 }
474
475 cpu_pdev = of_find_device_by_node(cpu_np);
476 if (!cpu_pdev) {
477 dev_err(&pdev->dev, "failed to find CPU DAI device\n");
478 ret = -EINVAL;
479 goto fail;
480 }
481
482 codec_np = of_parse_phandle(np, "audio-codec", 0);
483 if (codec_np)
484 codec_dev = of_find_i2c_device_by_node(codec_np);
485 else
486 codec_dev = NULL;
487
488 asrc_np = of_parse_phandle(np, "audio-asrc", 0);
489 if (asrc_np)
490 asrc_pdev = of_find_device_by_node(asrc_np);
491
492
493 if (codec_dev) {
494 struct clk *codec_clk = clk_get(&codec_dev->dev, NULL);
495
496 if (!IS_ERR(codec_clk)) {
497 priv->codec_priv.mclk_freq = clk_get_rate(codec_clk);
498 clk_put(codec_clk);
499 }
500 }
501
502
503 priv->sample_rate = 44100;
504 priv->sample_format = SNDRV_PCM_FORMAT_S16_LE;
505
506
507 priv->dai_fmt = DAI_FMT_BASE;
508
509
510 if (of_device_is_compatible(np, "fsl,imx-audio-cs42888")) {
511 codec_dai_name = "cs42888";
512 priv->card.set_bias_level = NULL;
513 priv->cpu_priv.sysclk_freq[TX] = priv->codec_priv.mclk_freq;
514 priv->cpu_priv.sysclk_freq[RX] = priv->codec_priv.mclk_freq;
515 priv->cpu_priv.sysclk_dir[TX] = SND_SOC_CLOCK_OUT;
516 priv->cpu_priv.sysclk_dir[RX] = SND_SOC_CLOCK_OUT;
517 priv->cpu_priv.slot_width = 32;
518 priv->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
519 } else if (of_device_is_compatible(np, "fsl,imx-audio-sgtl5000")) {
520 codec_dai_name = "sgtl5000";
521 priv->codec_priv.mclk_id = SGTL5000_SYSCLK;
522 priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
523 } else if (of_device_is_compatible(np, "fsl,imx-audio-wm8962")) {
524 codec_dai_name = "wm8962";
525 priv->card.set_bias_level = fsl_asoc_card_set_bias_level;
526 priv->codec_priv.mclk_id = WM8962_SYSCLK_MCLK;
527 priv->codec_priv.fll_id = WM8962_SYSCLK_FLL;
528 priv->codec_priv.pll_id = WM8962_FLL;
529 priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
530 } else if (of_device_is_compatible(np, "fsl,imx-audio-wm8960")) {
531 codec_dai_name = "wm8960-hifi";
532 priv->card.set_bias_level = fsl_asoc_card_set_bias_level;
533 priv->codec_priv.fll_id = WM8960_SYSCLK_AUTO;
534 priv->codec_priv.pll_id = WM8960_SYSCLK_AUTO;
535 priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
536 } else if (of_device_is_compatible(np, "fsl,imx-audio-ac97")) {
537 codec_dai_name = "ac97-hifi";
538 priv->card.set_bias_level = NULL;
539 priv->dai_fmt = SND_SOC_DAIFMT_AC97;
540 } else {
541 dev_err(&pdev->dev, "unknown Device Tree compatible\n");
542 ret = -EINVAL;
543 goto asrc_fail;
544 }
545
546 if (!fsl_asoc_card_is_ac97(priv) && !codec_dev) {
547 dev_err(&pdev->dev, "failed to find codec device\n");
548 ret = -EINVAL;
549 goto asrc_fail;
550 }
551
552
553 if (strstr(cpu_np->name, "ssi")) {
554
555 ret = fsl_asoc_card_audmux_init(np, priv);
556 if (ret) {
557 dev_err(&pdev->dev, "failed to init audmux\n");
558 goto asrc_fail;
559 }
560 } else if (strstr(cpu_np->name, "esai")) {
561 priv->cpu_priv.sysclk_id[1] = ESAI_HCKT_EXTAL;
562 priv->cpu_priv.sysclk_id[0] = ESAI_HCKR_EXTAL;
563 } else if (strstr(cpu_np->name, "sai")) {
564 priv->cpu_priv.sysclk_id[1] = FSL_SAI_CLK_MAST1;
565 priv->cpu_priv.sysclk_id[0] = FSL_SAI_CLK_MAST1;
566 }
567
568 snprintf(priv->name, sizeof(priv->name), "%s-audio",
569 fsl_asoc_card_is_ac97(priv) ? "ac97" :
570 codec_dev->name);
571
572
573 priv->pdev = pdev;
574 priv->card.dev = &pdev->dev;
575 priv->card.name = priv->name;
576 priv->card.dai_link = priv->dai_link;
577 priv->card.dapm_routes = audio_map;
578 priv->card.late_probe = fsl_asoc_card_late_probe;
579 priv->card.num_dapm_routes = ARRAY_SIZE(audio_map);
580 priv->card.dapm_widgets = fsl_asoc_card_dapm_widgets;
581 priv->card.num_dapm_widgets = ARRAY_SIZE(fsl_asoc_card_dapm_widgets);
582
583 memcpy(priv->dai_link, fsl_asoc_card_dai,
584 sizeof(struct snd_soc_dai_link) * ARRAY_SIZE(priv->dai_link));
585
586 ret = snd_soc_of_parse_audio_routing(&priv->card, "audio-routing");
587 if (ret) {
588 dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret);
589 goto asrc_fail;
590 }
591
592
593 priv->dai_link[0].cpu_of_node = cpu_np;
594 priv->dai_link[0].codec_dai_name = codec_dai_name;
595
596 if (!fsl_asoc_card_is_ac97(priv))
597 priv->dai_link[0].codec_of_node = codec_np;
598 else {
599 u32 idx;
600
601 ret = of_property_read_u32(cpu_np, "cell-index", &idx);
602 if (ret) {
603 dev_err(&pdev->dev,
604 "cannot get CPU index property\n");
605 goto asrc_fail;
606 }
607
608 priv->dai_link[0].codec_name =
609 devm_kasprintf(&pdev->dev, GFP_KERNEL,
610 "ac97-codec.%u",
611 (unsigned int)idx);
612 }
613
614 priv->dai_link[0].platform_of_node = cpu_np;
615 priv->dai_link[0].dai_fmt = priv->dai_fmt;
616 priv->card.num_links = 1;
617
618 if (asrc_pdev) {
619
620 priv->dai_link[1].cpu_of_node = asrc_np;
621 priv->dai_link[1].platform_of_node = asrc_np;
622 priv->dai_link[2].codec_dai_name = codec_dai_name;
623 priv->dai_link[2].codec_of_node = codec_np;
624 priv->dai_link[2].codec_name =
625 priv->dai_link[0].codec_name;
626 priv->dai_link[2].cpu_of_node = cpu_np;
627 priv->dai_link[2].dai_fmt = priv->dai_fmt;
628 priv->card.num_links = 3;
629
630 ret = of_property_read_u32(asrc_np, "fsl,asrc-rate",
631 &priv->asrc_rate);
632 if (ret) {
633 dev_err(&pdev->dev, "failed to get output rate\n");
634 ret = -EINVAL;
635 goto asrc_fail;
636 }
637
638 ret = of_property_read_u32(asrc_np, "fsl,asrc-width", &width);
639 if (ret) {
640 dev_err(&pdev->dev, "failed to get output rate\n");
641 ret = -EINVAL;
642 goto asrc_fail;
643 }
644
645 if (width == 24)
646 priv->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
647 else
648 priv->asrc_format = SNDRV_PCM_FORMAT_S16_LE;
649 }
650
651
652 platform_set_drvdata(pdev, priv);
653 snd_soc_card_set_drvdata(&priv->card, priv);
654
655 ret = devm_snd_soc_register_card(&pdev->dev, &priv->card);
656 if (ret)
657 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
658
659asrc_fail:
660 of_node_put(asrc_np);
661 of_node_put(codec_np);
662fail:
663 of_node_put(cpu_np);
664
665 return ret;
666}
667
668static const struct of_device_id fsl_asoc_card_dt_ids[] = {
669 { .compatible = "fsl,imx-audio-ac97", },
670 { .compatible = "fsl,imx-audio-cs42888", },
671 { .compatible = "fsl,imx-audio-sgtl5000", },
672 { .compatible = "fsl,imx-audio-wm8962", },
673 { .compatible = "fsl,imx-audio-wm8960", },
674 {}
675};
676MODULE_DEVICE_TABLE(of, fsl_asoc_card_dt_ids);
677
678static struct platform_driver fsl_asoc_card_driver = {
679 .probe = fsl_asoc_card_probe,
680 .driver = {
681 .name = "fsl-asoc-card",
682 .pm = &snd_soc_pm_ops,
683 .of_match_table = fsl_asoc_card_dt_ids,
684 },
685};
686module_platform_driver(fsl_asoc_card_driver);
687
688MODULE_DESCRIPTION("Freescale Generic ASoC Sound Card driver with ASRC");
689MODULE_AUTHOR("Nicolin Chen <nicoleotsuka@gmail.com>");
690MODULE_ALIAS("platform:fsl-asoc-card");
691MODULE_LICENSE("GPL");
692
