Merge tag 'for-v5.4' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power...
[platform/kernel/linux-rpi.git] / sound / soc / intel / boards / sof_rt5682.c
1 // SPDX-License-Identifier: GPL-2.0
2 // Copyright(c) 2019 Intel Corporation.
3
4 /*
5  * Intel SOF Machine Driver with Realtek rt5682 Codec
6  * and speaker codec MAX98357A
7  */
8 #include <linux/i2c.h>
9 #include <linux/input.h>
10 #include <linux/module.h>
11 #include <linux/platform_device.h>
12 #include <linux/clk.h>
13 #include <linux/dmi.h>
14 #include <sound/core.h>
15 #include <sound/jack.h>
16 #include <sound/pcm.h>
17 #include <sound/pcm_params.h>
18 #include <sound/soc.h>
19 #include <sound/rt5682.h>
20 #include <sound/soc-acpi.h>
21 #include "../../codecs/rt5682.h"
22 #include "../../codecs/hdac_hdmi.h"
23 #include "../common/soc-intel-quirks.h"
24
25 #define NAME_SIZE 32
26
27 #define SOF_RT5682_SSP_CODEC(quirk)             ((quirk) & GENMASK(2, 0))
28 #define SOF_RT5682_SSP_CODEC_MASK                       (GENMASK(2, 0))
29 #define SOF_RT5682_MCLK_EN                      BIT(3)
30 #define SOF_RT5682_MCLK_24MHZ                   BIT(4)
31 #define SOF_SPEAKER_AMP_PRESENT         BIT(5)
32 #define SOF_RT5682_SSP_AMP_SHIFT                6
33 #define SOF_RT5682_SSP_AMP_MASK                 (GENMASK(8, 6))
34 #define SOF_RT5682_SSP_AMP(quirk)       \
35         (((quirk) << SOF_RT5682_SSP_AMP_SHIFT) & SOF_RT5682_SSP_AMP_MASK)
36 #define SOF_RT5682_MCLK_BYTCHT_EN               BIT(9)
37
38 /* Default: MCLK on, MCLK 19.2M, SSP0  */
39 static unsigned long sof_rt5682_quirk = SOF_RT5682_MCLK_EN |
40                                         SOF_RT5682_SSP_CODEC(0);
41
42 static int is_legacy_cpu;
43
44 static struct snd_soc_jack sof_hdmi[3];
45
46 struct sof_hdmi_pcm {
47         struct list_head head;
48         struct snd_soc_dai *codec_dai;
49         int device;
50 };
51
52 struct sof_card_private {
53         struct clk *mclk;
54         struct snd_soc_jack sof_headset;
55         struct list_head hdmi_pcm_list;
56 };
57
58 static int sof_rt5682_quirk_cb(const struct dmi_system_id *id)
59 {
60         sof_rt5682_quirk = (unsigned long)id->driver_data;
61         return 1;
62 }
63
64 static const struct dmi_system_id sof_rt5682_quirk_table[] = {
65         {
66                 .callback = sof_rt5682_quirk_cb,
67                 .matches = {
68                         DMI_MATCH(DMI_SYS_VENDOR, "Circuitco"),
69                         DMI_MATCH(DMI_PRODUCT_NAME, "Minnowboard Max"),
70                 },
71                 .driver_data = (void *)(SOF_RT5682_SSP_CODEC(2)),
72         },
73         {
74                 .callback = sof_rt5682_quirk_cb,
75                 .matches = {
76                         DMI_MATCH(DMI_SYS_VENDOR, "AAEON"),
77                         DMI_MATCH(DMI_PRODUCT_NAME, "UP-CHT01"),
78                 },
79                 .driver_data = (void *)(SOF_RT5682_SSP_CODEC(2)),
80         },
81         {
82                 .callback = sof_rt5682_quirk_cb,
83                 .matches = {
84                         DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
85                         DMI_MATCH(DMI_PRODUCT_NAME, "WhiskeyLake Client"),
86                 },
87                 .driver_data = (void *)(SOF_RT5682_MCLK_EN |
88                                         SOF_RT5682_MCLK_24MHZ |
89                                         SOF_RT5682_SSP_CODEC(1)),
90         },
91         {
92                 .callback = sof_rt5682_quirk_cb,
93                 .matches = {
94                         DMI_MATCH(DMI_PRODUCT_FAMILY, "Google_Hatch"),
95                 },
96                 .driver_data = (void *)(SOF_RT5682_MCLK_EN |
97                                         SOF_RT5682_MCLK_24MHZ |
98                                         SOF_RT5682_SSP_CODEC(0) |
99                                         SOF_SPEAKER_AMP_PRESENT |
100                                         SOF_RT5682_SSP_AMP(1)),
101         },
102         {
103                 .callback = sof_rt5682_quirk_cb,
104                 .matches = {
105                         DMI_MATCH(DMI_SYS_VENDOR, "Intel Corporation"),
106                         DMI_MATCH(DMI_PRODUCT_NAME, "Ice Lake Client"),
107                 },
108                 .driver_data = (void *)(SOF_RT5682_MCLK_EN |
109                                         SOF_RT5682_SSP_CODEC(0)),
110         },
111         {}
112 };
113
114 static int sof_hdmi_init(struct snd_soc_pcm_runtime *rtd)
115 {
116         struct sof_card_private *ctx = snd_soc_card_get_drvdata(rtd->card);
117         struct snd_soc_dai *dai = rtd->codec_dai;
118         struct sof_hdmi_pcm *pcm;
119
120         pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
121         if (!pcm)
122                 return -ENOMEM;
123
124         /* dai_link id is 1:1 mapped to the PCM device */
125         pcm->device = rtd->dai_link->id;
126         pcm->codec_dai = dai;
127
128         list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
129
130         return 0;
131 }
132
133 static int sof_rt5682_codec_init(struct snd_soc_pcm_runtime *rtd)
134 {
135         struct sof_card_private *ctx = snd_soc_card_get_drvdata(rtd->card);
136         struct snd_soc_component *component = rtd->codec_dai->component;
137         struct snd_soc_jack *jack;
138         int ret;
139
140         /* need to enable ASRC function for 24MHz mclk rate */
141         if ((sof_rt5682_quirk & SOF_RT5682_MCLK_EN) &&
142             (sof_rt5682_quirk & SOF_RT5682_MCLK_24MHZ)) {
143                 rt5682_sel_asrc_clk_src(component, RT5682_DA_STEREO1_FILTER |
144                                         RT5682_AD_STEREO1_FILTER,
145                                         RT5682_CLK_SEL_I2S1_ASRC);
146         }
147
148         if (sof_rt5682_quirk & SOF_RT5682_MCLK_BYTCHT_EN) {
149                 /*
150                  * The firmware might enable the clock at
151                  * boot (this information may or may not
152                  * be reflected in the enable clock register).
153                  * To change the rate we must disable the clock
154                  * first to cover these cases. Due to common
155                  * clock framework restrictions that do not allow
156                  * to disable a clock that has not been enabled,
157                  * we need to enable the clock first.
158                  */
159                 ret = clk_prepare_enable(ctx->mclk);
160                 if (!ret)
161                         clk_disable_unprepare(ctx->mclk);
162
163                 ret = clk_set_rate(ctx->mclk, 19200000);
164
165                 if (ret)
166                         dev_err(rtd->dev, "unable to set MCLK rate\n");
167         }
168
169         /*
170          * Headset buttons map to the google Reference headset.
171          * These can be configured by userspace.
172          */
173         ret = snd_soc_card_jack_new(rtd->card, "Headset Jack",
174                                     SND_JACK_HEADSET | SND_JACK_BTN_0 |
175                                     SND_JACK_BTN_1 | SND_JACK_BTN_2 |
176                                     SND_JACK_BTN_3,
177                                     &ctx->sof_headset, NULL, 0);
178         if (ret) {
179                 dev_err(rtd->dev, "Headset Jack creation failed: %d\n", ret);
180                 return ret;
181         }
182
183         jack = &ctx->sof_headset;
184
185         snd_jack_set_key(jack->jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
186         snd_jack_set_key(jack->jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
187         snd_jack_set_key(jack->jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
188         snd_jack_set_key(jack->jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
189         ret = snd_soc_component_set_jack(component, jack, NULL);
190
191         if (ret) {
192                 dev_err(rtd->dev, "Headset Jack call-back failed: %d\n", ret);
193                 return ret;
194         }
195
196         return ret;
197 };
198
199 static int sof_rt5682_hw_params(struct snd_pcm_substream *substream,
200                                 struct snd_pcm_hw_params *params)
201 {
202         struct snd_soc_pcm_runtime *rtd = substream->private_data;
203         struct sof_card_private *ctx = snd_soc_card_get_drvdata(rtd->card);
204         struct snd_soc_dai *codec_dai = rtd->codec_dai;
205         int clk_id, clk_freq, pll_out, ret;
206
207         if (sof_rt5682_quirk & SOF_RT5682_MCLK_EN) {
208                 if (sof_rt5682_quirk & SOF_RT5682_MCLK_BYTCHT_EN) {
209                         ret = clk_prepare_enable(ctx->mclk);
210                         if (ret < 0) {
211                                 dev_err(rtd->dev,
212                                         "could not configure MCLK state");
213                                 return ret;
214                         }
215                 }
216
217                 clk_id = RT5682_PLL1_S_MCLK;
218                 if (sof_rt5682_quirk & SOF_RT5682_MCLK_24MHZ)
219                         clk_freq = 24000000;
220                 else
221                         clk_freq = 19200000;
222         } else {
223                 clk_id = RT5682_PLL1_S_BCLK1;
224                 clk_freq = params_rate(params) * 50;
225         }
226
227         pll_out = params_rate(params) * 512;
228
229         ret = snd_soc_dai_set_pll(codec_dai, 0, clk_id, clk_freq, pll_out);
230         if (ret < 0)
231                 dev_err(rtd->dev, "snd_soc_dai_set_pll err = %d\n", ret);
232
233         /* Configure sysclk for codec */
234         ret = snd_soc_dai_set_sysclk(codec_dai, RT5682_SCLK_S_PLL1,
235                                      pll_out, SND_SOC_CLOCK_IN);
236         if (ret < 0)
237                 dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", ret);
238
239         /*
240          * slot_width should equal or large than data length, set them
241          * be the same
242          */
243         ret = snd_soc_dai_set_tdm_slot(codec_dai, 0x0, 0x0, 2,
244                                        params_width(params));
245         if (ret < 0) {
246                 dev_err(rtd->dev, "set TDM slot err:%d\n", ret);
247                 return ret;
248         }
249
250         return ret;
251 }
252
253 static struct snd_soc_ops sof_rt5682_ops = {
254         .hw_params = sof_rt5682_hw_params,
255 };
256
257 static struct snd_soc_dai_link_component platform_component[] = {
258         {
259                 /* name might be overridden during probe */
260                 .name = "0000:00:1f.3"
261         }
262 };
263
264 static int sof_card_late_probe(struct snd_soc_card *card)
265 {
266         struct sof_card_private *ctx = snd_soc_card_get_drvdata(card);
267         struct snd_soc_component *component = NULL;
268         char jack_name[NAME_SIZE];
269         struct sof_hdmi_pcm *pcm;
270         int err = 0;
271         int i = 0;
272
273         /* HDMI is not supported by SOF on Baytrail/CherryTrail */
274         if (is_legacy_cpu)
275                 return 0;
276
277         list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) {
278                 component = pcm->codec_dai->component;
279                 snprintf(jack_name, sizeof(jack_name),
280                          "HDMI/DP, pcm=%d Jack", pcm->device);
281                 err = snd_soc_card_jack_new(card, jack_name,
282                                             SND_JACK_AVOUT, &sof_hdmi[i],
283                                             NULL, 0);
284
285                 if (err)
286                         return err;
287
288                 err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device,
289                                           &sof_hdmi[i]);
290                 if (err < 0)
291                         return err;
292
293                 i++;
294         }
295         if (!component)
296                 return -EINVAL;
297
298         return hdac_hdmi_jack_port_init(component, &card->dapm);
299 }
300
301 static const struct snd_kcontrol_new sof_controls[] = {
302         SOC_DAPM_PIN_SWITCH("Headphone Jack"),
303         SOC_DAPM_PIN_SWITCH("Headset Mic"),
304         SOC_DAPM_PIN_SWITCH("Spk"),
305 };
306
307 static const struct snd_soc_dapm_widget sof_widgets[] = {
308         SND_SOC_DAPM_HP("Headphone Jack", NULL),
309         SND_SOC_DAPM_MIC("Headset Mic", NULL),
310         SND_SOC_DAPM_SPK("Spk", NULL),
311         SND_SOC_DAPM_MIC("SoC DMIC", NULL),
312 };
313
314 static const struct snd_soc_dapm_route sof_map[] = {
315         /* HP jack connectors - unknown if we have jack detection */
316         { "Headphone Jack", NULL, "HPOL" },
317         { "Headphone Jack", NULL, "HPOR" },
318
319         /* other jacks */
320         { "IN1P", NULL, "Headset Mic" },
321
322         /* digital mics */
323         {"DMic", NULL, "SoC DMIC"},
324
325 };
326
327 static const struct snd_soc_dapm_route speaker_map[] = {
328         /* speaker */
329         { "Spk", NULL, "Speaker" },
330 };
331
332 static int speaker_codec_init(struct snd_soc_pcm_runtime *rtd)
333 {
334         struct snd_soc_card *card = rtd->card;
335         int ret;
336
337         ret = snd_soc_dapm_add_routes(&card->dapm, speaker_map,
338                                       ARRAY_SIZE(speaker_map));
339
340         if (ret)
341                 dev_err(rtd->dev, "Speaker map addition failed: %d\n", ret);
342         return ret;
343 }
344
345 /* sof audio machine driver for rt5682 codec */
346 static struct snd_soc_card sof_audio_card_rt5682 = {
347         .name = "sof_rt5682",
348         .owner = THIS_MODULE,
349         .controls = sof_controls,
350         .num_controls = ARRAY_SIZE(sof_controls),
351         .dapm_widgets = sof_widgets,
352         .num_dapm_widgets = ARRAY_SIZE(sof_widgets),
353         .dapm_routes = sof_map,
354         .num_dapm_routes = ARRAY_SIZE(sof_map),
355         .fully_routed = true,
356         .late_probe = sof_card_late_probe,
357 };
358
359 static struct snd_soc_dai_link_component rt5682_component[] = {
360         {
361                 .name = "i2c-10EC5682:00",
362                 .dai_name = "rt5682-aif1",
363         }
364 };
365
366 static struct snd_soc_dai_link_component dmic_component[] = {
367         {
368                 .name = "dmic-codec",
369                 .dai_name = "dmic-hifi",
370         }
371 };
372
373 static struct snd_soc_dai_link_component max98357a_component[] = {
374         {
375                 .name = "MX98357A:00",
376                 .dai_name = "HiFi",
377         }
378 };
379
380 static struct snd_soc_dai_link *sof_card_dai_links_create(struct device *dev,
381                                                           int ssp_codec,
382                                                           int ssp_amp,
383                                                           int dmic_be_num,
384                                                           int hdmi_num)
385 {
386         struct snd_soc_dai_link_component *idisp_components;
387         struct snd_soc_dai_link_component *cpus;
388         struct snd_soc_dai_link *links;
389         int i, id = 0;
390
391         links = devm_kzalloc(dev, sizeof(struct snd_soc_dai_link) *
392                              sof_audio_card_rt5682.num_links, GFP_KERNEL);
393         cpus = devm_kzalloc(dev, sizeof(struct snd_soc_dai_link_component) *
394                              sof_audio_card_rt5682.num_links, GFP_KERNEL);
395         if (!links || !cpus)
396                 goto devm_err;
397
398         /* codec SSP */
399         links[id].name = devm_kasprintf(dev, GFP_KERNEL,
400                                         "SSP%d-Codec", ssp_codec);
401         if (!links[id].name)
402                 goto devm_err;
403
404         links[id].id = id;
405         links[id].codecs = rt5682_component;
406         links[id].num_codecs = ARRAY_SIZE(rt5682_component);
407         links[id].platforms = platform_component;
408         links[id].num_platforms = ARRAY_SIZE(platform_component);
409         links[id].init = sof_rt5682_codec_init;
410         links[id].ops = &sof_rt5682_ops;
411         links[id].nonatomic = true;
412         links[id].dpcm_playback = 1;
413         links[id].dpcm_capture = 1;
414         links[id].no_pcm = 1;
415         links[id].cpus = &cpus[id];
416         links[id].num_cpus = 1;
417         if (is_legacy_cpu) {
418                 links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
419                                                           "ssp%d-port",
420                                                           ssp_codec);
421                 if (!links[id].cpus->dai_name)
422                         goto devm_err;
423         } else {
424                 /*
425                  * Currently, On SKL+ platforms MCLK will be turned off in sof
426                  * runtime suspended, and it will go into runtime suspended
427                  * right after playback is stop. However, rt5682 will output
428                  * static noise if sysclk turns off during playback. Set
429                  * ignore_pmdown_time to power down rt5682 immediately and
430                  * avoid the noise.
431                  * It can be removed once we can control MCLK by driver.
432                  */
433                 links[id].ignore_pmdown_time = 1;
434                 links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
435                                                           "SSP%d Pin",
436                                                           ssp_codec);
437                 if (!links[id].cpus->dai_name)
438                         goto devm_err;
439         }
440         id++;
441
442         /* dmic */
443         if (dmic_be_num > 0) {
444                 /* at least we have dmic01 */
445                 links[id].name = "dmic01";
446                 links[id].cpus = &cpus[id];
447                 links[id].cpus->dai_name = "DMIC01 Pin";
448                 if (dmic_be_num > 1) {
449                         /* set up 2 BE links at most */
450                         links[id + 1].name = "dmic16k";
451                         links[id + 1].cpus = &cpus[id + 1];
452                         links[id + 1].cpus->dai_name = "DMIC16k Pin";
453                         dmic_be_num = 2;
454                 }
455         }
456
457         for (i = 0; i < dmic_be_num; i++) {
458                 links[id].id = id;
459                 links[id].num_cpus = 1;
460                 links[id].codecs = dmic_component;
461                 links[id].num_codecs = ARRAY_SIZE(dmic_component);
462                 links[id].platforms = platform_component;
463                 links[id].num_platforms = ARRAY_SIZE(platform_component);
464                 links[id].ignore_suspend = 1;
465                 links[id].dpcm_capture = 1;
466                 links[id].no_pcm = 1;
467                 id++;
468         }
469
470         /* HDMI */
471         if (hdmi_num > 0) {
472                 idisp_components = devm_kzalloc(dev,
473                                    sizeof(struct snd_soc_dai_link_component) *
474                                    hdmi_num, GFP_KERNEL);
475                 if (!idisp_components)
476                         goto devm_err;
477         }
478         for (i = 1; i <= hdmi_num; i++) {
479                 links[id].name = devm_kasprintf(dev, GFP_KERNEL,
480                                                 "iDisp%d", i);
481                 if (!links[id].name)
482                         goto devm_err;
483
484                 links[id].id = id;
485                 links[id].cpus = &cpus[id];
486                 links[id].num_cpus = 1;
487                 links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
488                                                           "iDisp%d Pin", i);
489                 if (!links[id].cpus->dai_name)
490                         goto devm_err;
491
492                 idisp_components[i - 1].name = "ehdaudio0D2";
493                 idisp_components[i - 1].dai_name = devm_kasprintf(dev,
494                                                                   GFP_KERNEL,
495                                                                   "intel-hdmi-hifi%d",
496                                                                   i);
497                 if (!idisp_components[i - 1].dai_name)
498                         goto devm_err;
499
500                 links[id].codecs = &idisp_components[i - 1];
501                 links[id].num_codecs = 1;
502                 links[id].platforms = platform_component;
503                 links[id].num_platforms = ARRAY_SIZE(platform_component);
504                 links[id].init = sof_hdmi_init;
505                 links[id].dpcm_playback = 1;
506                 links[id].no_pcm = 1;
507                 id++;
508         }
509
510         /* speaker amp */
511         if (sof_rt5682_quirk & SOF_SPEAKER_AMP_PRESENT) {
512                 links[id].name = devm_kasprintf(dev, GFP_KERNEL,
513                                                 "SSP%d-Codec", ssp_amp);
514                 if (!links[id].name)
515                         goto devm_err;
516
517                 links[id].id = id;
518                 links[id].codecs = max98357a_component;
519                 links[id].num_codecs = ARRAY_SIZE(max98357a_component);
520                 links[id].platforms = platform_component;
521                 links[id].num_platforms = ARRAY_SIZE(platform_component);
522                 links[id].init = speaker_codec_init,
523                 links[id].nonatomic = true;
524                 links[id].dpcm_playback = 1;
525                 links[id].no_pcm = 1;
526                 links[id].cpus = &cpus[id];
527                 links[id].num_cpus = 1;
528                 if (is_legacy_cpu) {
529                         links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
530                                                                   "ssp%d-port",
531                                                                   ssp_amp);
532                         if (!links[id].cpus->dai_name)
533                                 goto devm_err;
534
535                 } else {
536                         links[id].cpus->dai_name = devm_kasprintf(dev, GFP_KERNEL,
537                                                                   "SSP%d Pin",
538                                                                   ssp_amp);
539                         if (!links[id].cpus->dai_name)
540                                 goto devm_err;
541                 }
542         }
543
544         return links;
545 devm_err:
546         return NULL;
547 }
548
549 static int sof_audio_probe(struct platform_device *pdev)
550 {
551         struct snd_soc_dai_link *dai_links;
552         struct snd_soc_acpi_mach *mach;
553         struct sof_card_private *ctx;
554         int dmic_be_num, hdmi_num;
555         int ret, ssp_amp, ssp_codec;
556
557         ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
558         if (!ctx)
559                 return -ENOMEM;
560
561         if (soc_intel_is_byt() || soc_intel_is_cht()) {
562                 is_legacy_cpu = 1;
563                 dmic_be_num = 0;
564                 hdmi_num = 0;
565                 /* default quirk for legacy cpu */
566                 sof_rt5682_quirk = SOF_RT5682_MCLK_EN |
567                                                 SOF_RT5682_MCLK_BYTCHT_EN |
568                                                 SOF_RT5682_SSP_CODEC(2);
569         } else {
570                 dmic_be_num = 2;
571                 hdmi_num = 3;
572         }
573
574         dmi_check_system(sof_rt5682_quirk_table);
575
576         /* need to get main clock from pmc */
577         if (sof_rt5682_quirk & SOF_RT5682_MCLK_BYTCHT_EN) {
578                 ctx->mclk = devm_clk_get(&pdev->dev, "pmc_plt_clk_3");
579                 ret = clk_prepare_enable(ctx->mclk);
580                 if (ret < 0) {
581                         dev_err(&pdev->dev,
582                                 "could not configure MCLK state");
583                         return ret;
584                 }
585         }
586
587         dev_dbg(&pdev->dev, "sof_rt5682_quirk = %lx\n", sof_rt5682_quirk);
588
589         ssp_amp = (sof_rt5682_quirk & SOF_RT5682_SSP_AMP_MASK) >>
590                         SOF_RT5682_SSP_AMP_SHIFT;
591
592         ssp_codec = sof_rt5682_quirk & SOF_RT5682_SSP_CODEC_MASK;
593
594         /* compute number of dai links */
595         sof_audio_card_rt5682.num_links = 1 + dmic_be_num + hdmi_num;
596
597         if (sof_rt5682_quirk & SOF_SPEAKER_AMP_PRESENT)
598                 sof_audio_card_rt5682.num_links++;
599
600         dai_links = sof_card_dai_links_create(&pdev->dev, ssp_codec, ssp_amp,
601                                               dmic_be_num, hdmi_num);
602         if (!dai_links)
603                 return -ENOMEM;
604
605         sof_audio_card_rt5682.dai_link = dai_links;
606
607         INIT_LIST_HEAD(&ctx->hdmi_pcm_list);
608
609         sof_audio_card_rt5682.dev = &pdev->dev;
610         mach = (&pdev->dev)->platform_data;
611
612         /* set platform name for each dailink */
613         ret = snd_soc_fixup_dai_links_platform_name(&sof_audio_card_rt5682,
614                                                     mach->mach_params.platform);
615         if (ret)
616                 return ret;
617
618         snd_soc_card_set_drvdata(&sof_audio_card_rt5682, ctx);
619
620         return devm_snd_soc_register_card(&pdev->dev,
621                                           &sof_audio_card_rt5682);
622 }
623
624 static struct platform_driver sof_audio = {
625         .probe = sof_audio_probe,
626         .driver = {
627                 .name = "sof_rt5682",
628                 .pm = &snd_soc_pm_ops,
629         },
630 };
631 module_platform_driver(sof_audio)
632
633 /* Module information */
634 MODULE_DESCRIPTION("SOF Audio Machine driver");
635 MODULE_AUTHOR("Bard Liao <bard.liao@intel.com>");
636 MODULE_AUTHOR("Sathya Prakash M R <sathya.prakash.m.r@intel.com>");
637 MODULE_LICENSE("GPL v2");
638 MODULE_ALIAS("platform:sof_rt5682");