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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
203SND_SOC_DAILINK_DEFS(hifi,
204 DAILINK_COMP_ARRAY(COMP_EMPTY()),
205 DAILINK_COMP_ARRAY(COMP_EMPTY()),
206 DAILINK_COMP_ARRAY(COMP_EMPTY()));
207
208SND_SOC_DAILINK_DEFS(hifi_fe,
209 DAILINK_COMP_ARRAY(COMP_EMPTY()),
210 DAILINK_COMP_ARRAY(COMP_DUMMY()),
211 DAILINK_COMP_ARRAY(COMP_EMPTY()));
212
213SND_SOC_DAILINK_DEFS(hifi_be,
214 DAILINK_COMP_ARRAY(COMP_EMPTY()),
215 DAILINK_COMP_ARRAY(COMP_EMPTY()),
216 DAILINK_COMP_ARRAY(COMP_DUMMY()));
217
218static struct snd_soc_dai_link fsl_asoc_card_dai[] = {
219
220 {
221 .name = "HiFi",
222 .stream_name = "HiFi",
223 .ops = &fsl_asoc_card_ops,
224 SND_SOC_DAILINK_REG(hifi),
225 },
226
227 {
228 .name = "HiFi-ASRC-FE",
229 .stream_name = "HiFi-ASRC-FE",
230 .dpcm_playback = 1,
231 .dpcm_capture = 1,
232 .dynamic = 1,
233 SND_SOC_DAILINK_REG(hifi_fe),
234 },
235 {
236 .name = "HiFi-ASRC-BE",
237 .stream_name = "HiFi-ASRC-BE",
238 .be_hw_params_fixup = be_hw_params_fixup,
239 .ops = &fsl_asoc_card_ops,
240 .dpcm_playback = 1,
241 .dpcm_capture = 1,
242 .no_pcm = 1,
243 SND_SOC_DAILINK_REG(hifi_be),
244 },
245};
246
247static int fsl_asoc_card_set_bias_level(struct snd_soc_card *card,
248 struct snd_soc_dapm_context *dapm,
249 enum snd_soc_bias_level level)
250{
251 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(card);
252 struct snd_soc_pcm_runtime *rtd;
253 struct snd_soc_dai *codec_dai;
254 struct codec_priv *codec_priv = &priv->codec_priv;
255 struct device *dev = card->dev;
256 unsigned int pll_out;
257 int ret;
258
259 rtd = snd_soc_get_pcm_runtime(card, card->dai_link[0].name);
260 codec_dai = rtd->codec_dai;
261 if (dapm->dev != codec_dai->dev)
262 return 0;
263
264 switch (level) {
265 case SND_SOC_BIAS_PREPARE:
266 if (dapm->bias_level != SND_SOC_BIAS_STANDBY)
267 break;
268
269 if (priv->sample_format == SNDRV_PCM_FORMAT_S24_LE)
270 pll_out = priv->sample_rate * 384;
271 else
272 pll_out = priv->sample_rate * 256;
273
274 ret = snd_soc_dai_set_pll(codec_dai, codec_priv->pll_id,
275 codec_priv->mclk_id,
276 codec_priv->mclk_freq, pll_out);
277 if (ret) {
278 dev_err(dev, "failed to start FLL: %d\n", ret);
279 return ret;
280 }
281
282 ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->fll_id,
283 pll_out, SND_SOC_CLOCK_IN);
284 if (ret && ret != -ENOTSUPP) {
285 dev_err(dev, "failed to set SYSCLK: %d\n", ret);
286 return ret;
287 }
288 break;
289
290 case SND_SOC_BIAS_STANDBY:
291 if (dapm->bias_level != SND_SOC_BIAS_PREPARE)
292 break;
293
294 ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->mclk_id,
295 codec_priv->mclk_freq,
296 SND_SOC_CLOCK_IN);
297 if (ret && ret != -ENOTSUPP) {
298 dev_err(dev, "failed to switch away from FLL: %d\n", ret);
299 return ret;
300 }
301
302 ret = snd_soc_dai_set_pll(codec_dai, codec_priv->pll_id, 0, 0, 0);
303 if (ret) {
304 dev_err(dev, "failed to stop FLL: %d\n", ret);
305 return ret;
306 }
307 break;
308
309 default:
310 break;
311 }
312
313 return 0;
314}
315
316static int fsl_asoc_card_audmux_init(struct device_node *np,
317 struct fsl_asoc_card_priv *priv)
318{
319 struct device *dev = &priv->pdev->dev;
320 u32 int_ptcr = 0, ext_ptcr = 0;
321 int int_port, ext_port;
322 int ret;
323
324 ret = of_property_read_u32(np, "mux-int-port", &int_port);
325 if (ret) {
326 dev_err(dev, "mux-int-port missing or invalid\n");
327 return ret;
328 }
329 ret = of_property_read_u32(np, "mux-ext-port", &ext_port);
330 if (ret) {
331 dev_err(dev, "mux-ext-port missing or invalid\n");
332 return ret;
333 }
334
335
336
337
338
339 int_port--;
340 ext_port--;
341
342
343
344
345
346
347 switch (priv->dai_fmt & SND_SOC_DAIFMT_MASTER_MASK) {
348 case SND_SOC_DAIFMT_CBM_CFM:
349 int_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | ext_port) |
350 IMX_AUDMUX_V2_PTCR_RCSEL(8 | ext_port) |
351 IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
352 IMX_AUDMUX_V2_PTCR_TCSEL(ext_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 case SND_SOC_DAIFMT_CBM_CFS:
359 int_ptcr = IMX_AUDMUX_V2_PTCR_RCSEL(8 | ext_port) |
360 IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
361 IMX_AUDMUX_V2_PTCR_RCLKDIR |
362 IMX_AUDMUX_V2_PTCR_TCLKDIR;
363 ext_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | int_port) |
364 IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
365 IMX_AUDMUX_V2_PTCR_RFSDIR |
366 IMX_AUDMUX_V2_PTCR_TFSDIR;
367 break;
368 case SND_SOC_DAIFMT_CBS_CFM:
369 int_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | ext_port) |
370 IMX_AUDMUX_V2_PTCR_TFSEL(ext_port) |
371 IMX_AUDMUX_V2_PTCR_RFSDIR |
372 IMX_AUDMUX_V2_PTCR_TFSDIR;
373 ext_ptcr = IMX_AUDMUX_V2_PTCR_RCSEL(8 | int_port) |
374 IMX_AUDMUX_V2_PTCR_TCSEL(int_port) |
375 IMX_AUDMUX_V2_PTCR_RCLKDIR |
376 IMX_AUDMUX_V2_PTCR_TCLKDIR;
377 break;
378 case SND_SOC_DAIFMT_CBS_CFS:
379 ext_ptcr = IMX_AUDMUX_V2_PTCR_RFSEL(8 | int_port) |
380 IMX_AUDMUX_V2_PTCR_RCSEL(8 | int_port) |
381 IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
382 IMX_AUDMUX_V2_PTCR_TCSEL(int_port) |
383 IMX_AUDMUX_V2_PTCR_RFSDIR |
384 IMX_AUDMUX_V2_PTCR_RCLKDIR |
385 IMX_AUDMUX_V2_PTCR_TFSDIR |
386 IMX_AUDMUX_V2_PTCR_TCLKDIR;
387 break;
388 default:
389 if (!fsl_asoc_card_is_ac97(priv))
390 return -EINVAL;
391 }
392
393 if (fsl_asoc_card_is_ac97(priv)) {
394 int_ptcr = IMX_AUDMUX_V2_PTCR_SYN |
395 IMX_AUDMUX_V2_PTCR_TCSEL(ext_port) |
396 IMX_AUDMUX_V2_PTCR_TCLKDIR;
397 ext_ptcr = IMX_AUDMUX_V2_PTCR_SYN |
398 IMX_AUDMUX_V2_PTCR_TFSEL(int_port) |
399 IMX_AUDMUX_V2_PTCR_TFSDIR;
400 }
401
402
403 if (!fsl_asoc_card_is_ac97(priv)) {
404 unsigned int pdcr =
405 IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port);
406
407 ret = imx_audmux_v2_configure_port(int_port, 0,
408 pdcr);
409 if (ret) {
410 dev_err(dev, "audmux internal port setup failed\n");
411 return ret;
412 }
413 }
414
415 ret = imx_audmux_v2_configure_port(int_port, int_ptcr,
416 IMX_AUDMUX_V2_PDCR_RXDSEL(ext_port));
417 if (ret) {
418 dev_err(dev, "audmux internal port setup failed\n");
419 return ret;
420 }
421
422 if (!fsl_asoc_card_is_ac97(priv)) {
423 unsigned int pdcr =
424 IMX_AUDMUX_V2_PDCR_RXDSEL(int_port);
425
426 ret = imx_audmux_v2_configure_port(ext_port, 0,
427 pdcr);
428 if (ret) {
429 dev_err(dev, "audmux external port setup failed\n");
430 return ret;
431 }
432 }
433
434 ret = imx_audmux_v2_configure_port(ext_port, ext_ptcr,
435 IMX_AUDMUX_V2_PDCR_RXDSEL(int_port));
436 if (ret) {
437 dev_err(dev, "audmux external port setup failed\n");
438 return ret;
439 }
440
441 return 0;
442}
443
444static int fsl_asoc_card_late_probe(struct snd_soc_card *card)
445{
446 struct fsl_asoc_card_priv *priv = snd_soc_card_get_drvdata(card);
447 struct snd_soc_pcm_runtime *rtd = list_first_entry(
448 &card->rtd_list, struct snd_soc_pcm_runtime, list);
449 struct snd_soc_dai *codec_dai = rtd->codec_dai;
450 struct codec_priv *codec_priv = &priv->codec_priv;
451 struct device *dev = card->dev;
452 int ret;
453
454 if (fsl_asoc_card_is_ac97(priv)) {
455#if IS_ENABLED(CONFIG_SND_AC97_CODEC)
456 struct snd_soc_component *component = rtd->codec_dai->component;
457 struct snd_ac97 *ac97 = snd_soc_component_get_drvdata(component);
458
459
460
461
462
463
464 snd_ac97_update_bits(ac97, AC97_EXTENDED_STATUS,
465 AC97_EA_SPSA_SLOT_MASK, AC97_EA_SPSA_3_4);
466#endif
467
468 return 0;
469 }
470
471 ret = snd_soc_dai_set_sysclk(codec_dai, codec_priv->mclk_id,
472 codec_priv->mclk_freq, SND_SOC_CLOCK_IN);
473 if (ret && ret != -ENOTSUPP) {
474 dev_err(dev, "failed to set sysclk in %s\n", __func__);
475 return ret;
476 }
477
478 return 0;
479}
480
481static int fsl_asoc_card_probe(struct platform_device *pdev)
482{
483 struct device_node *cpu_np, *codec_np, *asrc_np;
484 struct device_node *np = pdev->dev.of_node;
485 struct platform_device *asrc_pdev = NULL;
486 struct platform_device *cpu_pdev;
487 struct fsl_asoc_card_priv *priv;
488 struct i2c_client *codec_dev;
489 const char *codec_dai_name;
490 u32 width;
491 int ret;
492
493 priv = devm_kzalloc(&pdev->dev, sizeof(*priv), GFP_KERNEL);
494 if (!priv)
495 return -ENOMEM;
496
497 cpu_np = of_parse_phandle(np, "audio-cpu", 0);
498
499 if (!cpu_np)
500 cpu_np = of_parse_phandle(np, "ssi-controller", 0);
501 if (!cpu_np) {
502 dev_err(&pdev->dev, "CPU phandle missing or invalid\n");
503 ret = -EINVAL;
504 goto fail;
505 }
506
507 cpu_pdev = of_find_device_by_node(cpu_np);
508 if (!cpu_pdev) {
509 dev_err(&pdev->dev, "failed to find CPU DAI device\n");
510 ret = -EINVAL;
511 goto fail;
512 }
513
514 codec_np = of_parse_phandle(np, "audio-codec", 0);
515 if (codec_np)
516 codec_dev = of_find_i2c_device_by_node(codec_np);
517 else
518 codec_dev = NULL;
519
520 asrc_np = of_parse_phandle(np, "audio-asrc", 0);
521 if (asrc_np)
522 asrc_pdev = of_find_device_by_node(asrc_np);
523
524
525 if (codec_dev) {
526 struct clk *codec_clk = clk_get(&codec_dev->dev, NULL);
527
528 if (!IS_ERR(codec_clk)) {
529 priv->codec_priv.mclk_freq = clk_get_rate(codec_clk);
530 clk_put(codec_clk);
531 }
532 }
533
534
535 priv->sample_rate = 44100;
536 priv->sample_format = SNDRV_PCM_FORMAT_S16_LE;
537
538
539 priv->dai_fmt = DAI_FMT_BASE;
540
541
542 if (of_device_is_compatible(np, "fsl,imx-audio-cs42888")) {
543 codec_dai_name = "cs42888";
544 priv->card.set_bias_level = NULL;
545 priv->cpu_priv.sysclk_freq[TX] = priv->codec_priv.mclk_freq;
546 priv->cpu_priv.sysclk_freq[RX] = priv->codec_priv.mclk_freq;
547 priv->cpu_priv.sysclk_dir[TX] = SND_SOC_CLOCK_OUT;
548 priv->cpu_priv.sysclk_dir[RX] = SND_SOC_CLOCK_OUT;
549 priv->cpu_priv.slot_width = 32;
550 priv->dai_fmt |= SND_SOC_DAIFMT_CBS_CFS;
551 } else if (of_device_is_compatible(np, "fsl,imx-audio-cs427x")) {
552 codec_dai_name = "cs4271-hifi";
553 priv->codec_priv.mclk_id = CS427x_SYSCLK_MCLK;
554 priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
555 } else if (of_device_is_compatible(np, "fsl,imx-audio-sgtl5000")) {
556 codec_dai_name = "sgtl5000";
557 priv->codec_priv.mclk_id = SGTL5000_SYSCLK;
558 priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
559 } else if (of_device_is_compatible(np, "fsl,imx-audio-wm8962")) {
560 codec_dai_name = "wm8962";
561 priv->card.set_bias_level = fsl_asoc_card_set_bias_level;
562 priv->codec_priv.mclk_id = WM8962_SYSCLK_MCLK;
563 priv->codec_priv.fll_id = WM8962_SYSCLK_FLL;
564 priv->codec_priv.pll_id = WM8962_FLL;
565 priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
566 } else if (of_device_is_compatible(np, "fsl,imx-audio-wm8960")) {
567 codec_dai_name = "wm8960-hifi";
568 priv->card.set_bias_level = fsl_asoc_card_set_bias_level;
569 priv->codec_priv.fll_id = WM8960_SYSCLK_AUTO;
570 priv->codec_priv.pll_id = WM8960_SYSCLK_AUTO;
571 priv->dai_fmt |= SND_SOC_DAIFMT_CBM_CFM;
572 } else if (of_device_is_compatible(np, "fsl,imx-audio-ac97")) {
573 codec_dai_name = "ac97-hifi";
574 priv->card.set_bias_level = NULL;
575 priv->dai_fmt = SND_SOC_DAIFMT_AC97;
576 } else {
577 dev_err(&pdev->dev, "unknown Device Tree compatible\n");
578 ret = -EINVAL;
579 goto asrc_fail;
580 }
581
582 if (!fsl_asoc_card_is_ac97(priv) && !codec_dev) {
583 dev_err(&pdev->dev, "failed to find codec device\n");
584 ret = -EINVAL;
585 goto asrc_fail;
586 }
587
588
589 if (of_node_name_eq(cpu_np, "ssi")) {
590
591 ret = fsl_asoc_card_audmux_init(np, priv);
592 if (ret) {
593 dev_err(&pdev->dev, "failed to init audmux\n");
594 goto asrc_fail;
595 }
596 } else if (of_node_name_eq(cpu_np, "esai")) {
597 priv->cpu_priv.sysclk_id[1] = ESAI_HCKT_EXTAL;
598 priv->cpu_priv.sysclk_id[0] = ESAI_HCKR_EXTAL;
599 } else if (of_node_name_eq(cpu_np, "sai")) {
600 priv->cpu_priv.sysclk_id[1] = FSL_SAI_CLK_MAST1;
601 priv->cpu_priv.sysclk_id[0] = FSL_SAI_CLK_MAST1;
602 }
603
604 snprintf(priv->name, sizeof(priv->name), "%s-audio",
605 fsl_asoc_card_is_ac97(priv) ? "ac97" :
606 codec_dev->name);
607
608
609 priv->pdev = pdev;
610 priv->card.dev = &pdev->dev;
611 priv->card.name = priv->name;
612 priv->card.dai_link = priv->dai_link;
613 priv->card.dapm_routes = fsl_asoc_card_is_ac97(priv) ?
614 audio_map_ac97 : audio_map;
615 priv->card.late_probe = fsl_asoc_card_late_probe;
616 priv->card.num_dapm_routes = ARRAY_SIZE(audio_map);
617 priv->card.dapm_widgets = fsl_asoc_card_dapm_widgets;
618 priv->card.num_dapm_widgets = ARRAY_SIZE(fsl_asoc_card_dapm_widgets);
619
620
621 if (!asrc_pdev)
622 priv->card.num_dapm_routes /= 2;
623
624 memcpy(priv->dai_link, fsl_asoc_card_dai,
625 sizeof(struct snd_soc_dai_link) * ARRAY_SIZE(priv->dai_link));
626
627 ret = snd_soc_of_parse_audio_routing(&priv->card, "audio-routing");
628 if (ret) {
629 dev_err(&pdev->dev, "failed to parse audio-routing: %d\n", ret);
630 goto asrc_fail;
631 }
632
633
634 priv->dai_link[0].cpus->of_node = cpu_np;
635 priv->dai_link[0].codecs->dai_name = codec_dai_name;
636
637 if (!fsl_asoc_card_is_ac97(priv))
638 priv->dai_link[0].codecs->of_node = codec_np;
639 else {
640 u32 idx;
641
642 ret = of_property_read_u32(cpu_np, "cell-index", &idx);
643 if (ret) {
644 dev_err(&pdev->dev,
645 "cannot get CPU index property\n");
646 goto asrc_fail;
647 }
648
649 priv->dai_link[0].codecs->name =
650 devm_kasprintf(&pdev->dev, GFP_KERNEL,
651 "ac97-codec.%u",
652 (unsigned int)idx);
653 if (!priv->dai_link[0].codecs->name) {
654 ret = -ENOMEM;
655 goto asrc_fail;
656 }
657 }
658
659 priv->dai_link[0].platforms->of_node = cpu_np;
660 priv->dai_link[0].dai_fmt = priv->dai_fmt;
661 priv->card.num_links = 1;
662
663 if (asrc_pdev) {
664
665 priv->dai_link[1].cpus->of_node = asrc_np;
666 priv->dai_link[1].platforms->of_node = asrc_np;
667 priv->dai_link[2].codecs->dai_name = codec_dai_name;
668 priv->dai_link[2].codecs->of_node = codec_np;
669 priv->dai_link[2].codecs->name =
670 priv->dai_link[0].codecs->name;
671 priv->dai_link[2].cpus->of_node = cpu_np;
672 priv->dai_link[2].dai_fmt = priv->dai_fmt;
673 priv->card.num_links = 3;
674
675 ret = of_property_read_u32(asrc_np, "fsl,asrc-rate",
676 &priv->asrc_rate);
677 if (ret) {
678 dev_err(&pdev->dev, "failed to get output rate\n");
679 ret = -EINVAL;
680 goto asrc_fail;
681 }
682
683 ret = of_property_read_u32(asrc_np, "fsl,asrc-width", &width);
684 if (ret) {
685 dev_err(&pdev->dev, "failed to get output rate\n");
686 ret = -EINVAL;
687 goto asrc_fail;
688 }
689
690 if (width == 24)
691 priv->asrc_format = SNDRV_PCM_FORMAT_S24_LE;
692 else
693 priv->asrc_format = SNDRV_PCM_FORMAT_S16_LE;
694 }
695
696
697 platform_set_drvdata(pdev, priv);
698 snd_soc_card_set_drvdata(&priv->card, priv);
699
700 ret = devm_snd_soc_register_card(&pdev->dev, &priv->card);
701 if (ret && ret != -EPROBE_DEFER)
702 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
703
704asrc_fail:
705 of_node_put(asrc_np);
706 of_node_put(codec_np);
707 put_device(&cpu_pdev->dev);
708fail:
709 of_node_put(cpu_np);
710
711 return ret;
712}
713
714static const struct of_device_id fsl_asoc_card_dt_ids[] = {
715 { .compatible = "fsl,imx-audio-ac97", },
716 { .compatible = "fsl,imx-audio-cs42888", },
717 { .compatible = "fsl,imx-audio-cs427x", },
718 { .compatible = "fsl,imx-audio-sgtl5000", },
719 { .compatible = "fsl,imx-audio-wm8962", },
720 { .compatible = "fsl,imx-audio-wm8960", },
721 {}
722};
723MODULE_DEVICE_TABLE(of, fsl_asoc_card_dt_ids);
724
725static struct platform_driver fsl_asoc_card_driver = {
726 .probe = fsl_asoc_card_probe,
727 .driver = {
728 .name = "fsl-asoc-card",
729 .pm = &snd_soc_pm_ops,
730 .of_match_table = fsl_asoc_card_dt_ids,
731 },
732};
733module_platform_driver(fsl_asoc_card_driver);
734
735MODULE_DESCRIPTION("Freescale Generic ASoC Sound Card driver with ASRC");
736MODULE_AUTHOR("Nicolin Chen <nicoleotsuka@gmail.com>");
737MODULE_ALIAS("platform:fsl-asoc-card");
738MODULE_LICENSE("GPL");
739
