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  1// SPDX-License-Identifier: GPL-2.0-only
  2/*
  3 * Intel Broxton-P I2S Machine Driver
  4 *
  5 * Copyright (C) 2014-2016, Intel Corporation. All rights reserved.
  6 *
  7 * Modified from:
  8 *   Intel Skylake I2S Machine driver
  9 */
 10
 11#include <linux/module.h>
 12#include <linux/platform_device.h>
 13#include <sound/core.h>
 14#include <sound/pcm.h>
 15#include <sound/soc.h>
 16#include <sound/soc-acpi.h>
 17#include <sound/jack.h>
 18#include <sound/pcm_params.h>
 19#include "../../codecs/hdac_hdmi.h"
 20#include "../../codecs/rt298.h"
 21
 22/* Headset jack detection DAPM pins */
 23static struct snd_soc_jack broxton_headset;
 24static struct snd_soc_jack broxton_hdmi[3];
 25
 26struct bxt_hdmi_pcm {
 27	struct list_head head;
 28	struct snd_soc_dai *codec_dai;
 29	int device;
 30};
 31
 32struct bxt_rt286_private {
 33	struct list_head hdmi_pcm_list;
 34};
 35
 36enum {
 37	BXT_DPCM_AUDIO_PB = 0,
 38	BXT_DPCM_AUDIO_CP,
 39	BXT_DPCM_AUDIO_REF_CP,
 40	BXT_DPCM_AUDIO_DMIC_CP,
 41	BXT_DPCM_AUDIO_HDMI1_PB,
 42	BXT_DPCM_AUDIO_HDMI2_PB,
 43	BXT_DPCM_AUDIO_HDMI3_PB,
 44};
 45
 46static struct snd_soc_jack_pin broxton_headset_pins[] = {
 47	{
 48		.pin = "Mic Jack",
 49		.mask = SND_JACK_MICROPHONE,
 50	},
 51	{
 52		.pin = "Headphone Jack",
 53		.mask = SND_JACK_HEADPHONE,
 54	},
 55};
 56
 57static const struct snd_kcontrol_new broxton_controls[] = {
 58	SOC_DAPM_PIN_SWITCH("Speaker"),
 59	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
 60	SOC_DAPM_PIN_SWITCH("Mic Jack"),
 61};
 62
 63static const struct snd_soc_dapm_widget broxton_widgets[] = {
 64	SND_SOC_DAPM_HP("Headphone Jack", NULL),
 65	SND_SOC_DAPM_SPK("Speaker", NULL),
 66	SND_SOC_DAPM_MIC("Mic Jack", NULL),
 67	SND_SOC_DAPM_MIC("DMIC2", NULL),
 68	SND_SOC_DAPM_MIC("SoC DMIC", NULL),
 69	SND_SOC_DAPM_SPK("HDMI1", NULL),
 70	SND_SOC_DAPM_SPK("HDMI2", NULL),
 71	SND_SOC_DAPM_SPK("HDMI3", NULL),
 72};
 73
 74static const struct snd_soc_dapm_route broxton_rt298_map[] = {
 75	/* speaker */
 76	{"Speaker", NULL, "SPOR"},
 77	{"Speaker", NULL, "SPOL"},
 78
 79	/* HP jack connectors - unknown if we have jack detect */
 80	{"Headphone Jack", NULL, "HPO Pin"},
 81
 82	/* other jacks */
 83	{"MIC1", NULL, "Mic Jack"},
 84
 85	/* digital mics */
 86	{"DMIC1 Pin", NULL, "DMIC2"},
 87	{"DMic", NULL, "SoC DMIC"},
 88
 89	{"HDMI1", NULL, "hif5-0 Output"},
 90	{"HDMI2", NULL, "hif6-0 Output"},
 91	{"HDMI2", NULL, "hif7-0 Output"},
 92
 93	/* CODEC BE connections */
 94	{ "AIF1 Playback", NULL, "ssp5 Tx"},
 95	{ "ssp5 Tx", NULL, "codec0_out"},
 96	{ "ssp5 Tx", NULL, "codec1_out"},
 97
 98	{ "codec0_in", NULL, "ssp5 Rx" },
 99	{ "ssp5 Rx", NULL, "AIF1 Capture" },
100
101	{ "dmic01_hifi", NULL, "DMIC01 Rx" },
102	{ "DMIC01 Rx", NULL, "Capture" },
103
104	{ "hifi3", NULL, "iDisp3 Tx"},
105	{ "iDisp3 Tx", NULL, "iDisp3_out"},
106	{ "hifi2", NULL, "iDisp2 Tx"},
107	{ "iDisp2 Tx", NULL, "iDisp2_out"},
108	{ "hifi1", NULL, "iDisp1 Tx"},
109	{ "iDisp1 Tx", NULL, "iDisp1_out"},
110};
111
112static const struct snd_soc_dapm_route geminilake_rt298_map[] = {
113	/* speaker */
114	{"Speaker", NULL, "SPOR"},
115	{"Speaker", NULL, "SPOL"},
116
117	/* HP jack connectors - unknown if we have jack detect */
118	{"Headphone Jack", NULL, "HPO Pin"},
119
120	/* other jacks */
121	{"MIC1", NULL, "Mic Jack"},
122
123	/* digital mics */
124	{"DMIC1 Pin", NULL, "DMIC2"},
125	{"DMic", NULL, "SoC DMIC"},
126
127	{"HDMI1", NULL, "hif5-0 Output"},
128	{"HDMI2", NULL, "hif6-0 Output"},
129	{"HDMI2", NULL, "hif7-0 Output"},
130
131	/* CODEC BE connections */
132	{ "AIF1 Playback", NULL, "ssp2 Tx"},
133	{ "ssp2 Tx", NULL, "codec0_out"},
134	{ "ssp2 Tx", NULL, "codec1_out"},
135
136	{ "codec0_in", NULL, "ssp2 Rx" },
137	{ "ssp2 Rx", NULL, "AIF1 Capture" },
138
139	{ "dmic01_hifi", NULL, "DMIC01 Rx" },
140	{ "DMIC01 Rx", NULL, "Capture" },
141
142	{ "dmic_voice", NULL, "DMIC16k Rx" },
143	{ "DMIC16k Rx", NULL, "Capture" },
144
145	{ "hifi3", NULL, "iDisp3 Tx"},
146	{ "iDisp3 Tx", NULL, "iDisp3_out"},
147	{ "hifi2", NULL, "iDisp2 Tx"},
148	{ "iDisp2 Tx", NULL, "iDisp2_out"},
149	{ "hifi1", NULL, "iDisp1 Tx"},
150	{ "iDisp1 Tx", NULL, "iDisp1_out"},
151};
152
153static int broxton_rt298_fe_init(struct snd_soc_pcm_runtime *rtd)
154{
155	struct snd_soc_dapm_context *dapm;
156	struct snd_soc_component *component = rtd->cpu_dai->component;
157
158	dapm = snd_soc_component_get_dapm(component);
159	snd_soc_dapm_ignore_suspend(dapm, "Reference Capture");
160
161	return 0;
162}
163
164static int broxton_rt298_codec_init(struct snd_soc_pcm_runtime *rtd)
165{
166	struct snd_soc_component *component = rtd->codec_dai->component;
167	int ret = 0;
168
169	ret = snd_soc_card_jack_new(rtd->card, "Headset",
170		SND_JACK_HEADSET | SND_JACK_BTN_0,
171		&broxton_headset,
172		broxton_headset_pins, ARRAY_SIZE(broxton_headset_pins));
173
174	if (ret)
175		return ret;
176
177	rt298_mic_detect(component, &broxton_headset);
178
179	snd_soc_dapm_ignore_suspend(&rtd->card->dapm, "SoC DMIC");
180
181	return 0;
182}
183
184static int broxton_hdmi_init(struct snd_soc_pcm_runtime *rtd)
185{
186	struct bxt_rt286_private *ctx = snd_soc_card_get_drvdata(rtd->card);
187	struct snd_soc_dai *dai = rtd->codec_dai;
188	struct bxt_hdmi_pcm *pcm;
189
190	pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
191	if (!pcm)
192		return -ENOMEM;
193
194	pcm->device = BXT_DPCM_AUDIO_HDMI1_PB + dai->id;
195	pcm->codec_dai = dai;
196
197	list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
198
199	return 0;
200}
201
202static int broxton_ssp5_fixup(struct snd_soc_pcm_runtime *rtd,
203			struct snd_pcm_hw_params *params)
204{
205	struct snd_interval *rate = hw_param_interval(params,
206					SNDRV_PCM_HW_PARAM_RATE);
207	struct snd_interval *channels = hw_param_interval(params,
208					SNDRV_PCM_HW_PARAM_CHANNELS);
209	struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
210
211	/* The ADSP will covert the FE rate to 48k, stereo */
212	rate->min = rate->max = 48000;
213	channels->min = channels->max = 2;
214
215	/* set SSP5 to 24 bit */
216	snd_mask_none(fmt);
217	snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
218
219	return 0;
220}
221
222static int broxton_rt298_hw_params(struct snd_pcm_substream *substream,
223	struct snd_pcm_hw_params *params)
224{
225	struct snd_soc_pcm_runtime *rtd = substream->private_data;
226	struct snd_soc_dai *codec_dai = rtd->codec_dai;
227	int ret;
228
229	ret = snd_soc_dai_set_sysclk(codec_dai, RT298_SCLK_S_PLL,
230					19200000, SND_SOC_CLOCK_IN);
231	if (ret < 0) {
232		dev_err(rtd->dev, "can't set codec sysclk configuration\n");
233		return ret;
234	}
235
236	return ret;
237}
238
239static const struct snd_soc_ops broxton_rt298_ops = {
240	.hw_params = broxton_rt298_hw_params,
241};
242
243static const unsigned int rates[] = {
244	48000,
245};
246
247static const struct snd_pcm_hw_constraint_list constraints_rates = {
248	.count = ARRAY_SIZE(rates),
249	.list  = rates,
250	.mask = 0,
251};
252
253static int broxton_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
254				struct snd_pcm_hw_params *params)
255{
256	struct snd_interval *channels = hw_param_interval(params,
257						SNDRV_PCM_HW_PARAM_CHANNELS);
258	channels->min = channels->max = 4;
259
260	return 0;
261}
262
263static const unsigned int channels_dmic[] = {
264	1, 2, 3, 4,
265};
266
267static const struct snd_pcm_hw_constraint_list constraints_dmic_channels = {
268	.count = ARRAY_SIZE(channels_dmic),
269	.list = channels_dmic,
270	.mask = 0,
271};
272
273static int broxton_dmic_startup(struct snd_pcm_substream *substream)
274{
275	struct snd_pcm_runtime *runtime = substream->runtime;
276
277	runtime->hw.channels_max = 4;
278	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
279					&constraints_dmic_channels);
280
281	return snd_pcm_hw_constraint_list(substream->runtime, 0,
282				SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
283}
284
285static const struct snd_soc_ops broxton_dmic_ops = {
286	.startup = broxton_dmic_startup,
287};
288
289static const unsigned int channels[] = {
290	2,
291};
292
293static const struct snd_pcm_hw_constraint_list constraints_channels = {
294	.count = ARRAY_SIZE(channels),
295	.list = channels,
296	.mask = 0,
297};
298
299static int bxt_fe_startup(struct snd_pcm_substream *substream)
300{
301	struct snd_pcm_runtime *runtime = substream->runtime;
302
303	/*
304	 * on this platform for PCM device we support:
305	 *      48Khz
306	 *      stereo
307	 *	16-bit audio
308	 */
309
310	runtime->hw.channels_max = 2;
311	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
312				&constraints_channels);
313
314	runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;
315	snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16);
316	snd_pcm_hw_constraint_list(runtime, 0,
317				SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
318
319	return 0;
320}
321
322static const struct snd_soc_ops broxton_rt286_fe_ops = {
323	.startup = bxt_fe_startup,
324};
325
326SND_SOC_DAILINK_DEF(dummy,
327	DAILINK_COMP_ARRAY(COMP_DUMMY()));
328
329SND_SOC_DAILINK_DEF(system,
330	DAILINK_COMP_ARRAY(COMP_CPU("System Pin")));
331
332SND_SOC_DAILINK_DEF(reference,
333	DAILINK_COMP_ARRAY(COMP_CPU("Reference Pin")));
334
335SND_SOC_DAILINK_DEF(dmic,
336	DAILINK_COMP_ARRAY(COMP_CPU("DMIC Pin")));
337
338SND_SOC_DAILINK_DEF(hdmi1,
339	DAILINK_COMP_ARRAY(COMP_CPU("HDMI1 Pin")));
340
341SND_SOC_DAILINK_DEF(hdmi2,
342	DAILINK_COMP_ARRAY(COMP_CPU("HDMI2 Pin")));
343
344SND_SOC_DAILINK_DEF(hdmi3,
345	DAILINK_COMP_ARRAY(COMP_CPU("HDMI3 Pin")));
346
347SND_SOC_DAILINK_DEF(ssp5_pin,
348	DAILINK_COMP_ARRAY(COMP_CPU("SSP5 Pin")));
349SND_SOC_DAILINK_DEF(ssp5_codec,
350	DAILINK_COMP_ARRAY(COMP_CODEC("i2c-INT343A:00",
351				      "rt298-aif1")));
352
353SND_SOC_DAILINK_DEF(dmic_pin,
354	DAILINK_COMP_ARRAY(COMP_CPU("DMIC01 Pin")));
355
356SND_SOC_DAILINK_DEF(dmic_codec,
357	DAILINK_COMP_ARRAY(COMP_CODEC("dmic-codec",
358				      "dmic-hifi")));
359
360SND_SOC_DAILINK_DEF(dmic16k,
361	DAILINK_COMP_ARRAY(COMP_CPU("DMIC16k Pin")));
362
363SND_SOC_DAILINK_DEF(idisp1_pin,
364	DAILINK_COMP_ARRAY(COMP_CPU("iDisp1 Pin")));
365SND_SOC_DAILINK_DEF(idisp1_codec,
366	DAILINK_COMP_ARRAY(COMP_CODEC("ehdaudio0D2",
367				      "intel-hdmi-hifi1")));
368
369SND_SOC_DAILINK_DEF(idisp2_pin,
370	DAILINK_COMP_ARRAY(COMP_CPU("iDisp2 Pin")));
371SND_SOC_DAILINK_DEF(idisp2_codec,
372	DAILINK_COMP_ARRAY(COMP_CODEC("ehdaudio0D2",
373				      "intel-hdmi-hifi2")));
374
375SND_SOC_DAILINK_DEF(idisp3_pin,
376	DAILINK_COMP_ARRAY(COMP_CPU("iDisp3 Pin")));
377SND_SOC_DAILINK_DEF(idisp3_codec,
378	DAILINK_COMP_ARRAY(COMP_CODEC("ehdaudio0D2",
379				      "intel-hdmi-hifi3")));
380
381SND_SOC_DAILINK_DEF(platform,
382	DAILINK_COMP_ARRAY(COMP_PLATFORM("0000:00:0e.0")));
383
384/* broxton digital audio interface glue - connects codec <--> CPU */
385static struct snd_soc_dai_link broxton_rt298_dais[] = {
386	/* Front End DAI links */
387	[BXT_DPCM_AUDIO_PB] =
388	{
389		.name = "Bxt Audio Port",
390		.stream_name = "Audio",
391		.nonatomic = 1,
392		.dynamic = 1,
393		.init = broxton_rt298_fe_init,
394		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
395		.dpcm_playback = 1,
396		.ops = &broxton_rt286_fe_ops,
397		SND_SOC_DAILINK_REG(system, dummy, platform),
398	},
399	[BXT_DPCM_AUDIO_CP] =
400	{
401		.name = "Bxt Audio Capture Port",
402		.stream_name = "Audio Record",
403		.nonatomic = 1,
404		.dynamic = 1,
405		.trigger = {SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
406		.dpcm_capture = 1,
407		.ops = &broxton_rt286_fe_ops,
408		SND_SOC_DAILINK_REG(system, dummy, platform),
409	},
410	[BXT_DPCM_AUDIO_REF_CP] =
411	{
412		.name = "Bxt Audio Reference cap",
413		.stream_name = "refcap",
414		.init = NULL,
415		.dpcm_capture = 1,
416		.nonatomic = 1,
417		.dynamic = 1,
418		SND_SOC_DAILINK_REG(reference, dummy, platform),
419	},
420	[BXT_DPCM_AUDIO_DMIC_CP] =
421	{
422		.name = "Bxt Audio DMIC cap",
423		.stream_name = "dmiccap",
424		.init = NULL,
425		.dpcm_capture = 1,
426		.nonatomic = 1,
427		.dynamic = 1,
428		.ops = &broxton_dmic_ops,
429		SND_SOC_DAILINK_REG(dmic, dummy, platform),
430	},
431	[BXT_DPCM_AUDIO_HDMI1_PB] =
432	{
433		.name = "Bxt HDMI Port1",
434		.stream_name = "Hdmi1",
435		.dpcm_playback = 1,
436		.init = NULL,
437		.nonatomic = 1,
438		.dynamic = 1,
439		SND_SOC_DAILINK_REG(hdmi1, dummy, platform),
440	},
441	[BXT_DPCM_AUDIO_HDMI2_PB] =
442	{
443		.name = "Bxt HDMI Port2",
444		.stream_name = "Hdmi2",
445		.dpcm_playback = 1,
446		.init = NULL,
447		.nonatomic = 1,
448		.dynamic = 1,
449		SND_SOC_DAILINK_REG(hdmi2, dummy, platform),
450	},
451	[BXT_DPCM_AUDIO_HDMI3_PB] =
452	{
453		.name = "Bxt HDMI Port3",
454		.stream_name = "Hdmi3",
455		.dpcm_playback = 1,
456		.init = NULL,
457		.nonatomic = 1,
458		.dynamic = 1,
459		SND_SOC_DAILINK_REG(hdmi3, dummy, platform),
460	},
461	/* Back End DAI links */
462	{
463		/* SSP5 - Codec */
464		.name = "SSP5-Codec",
465		.id = 0,
466		.no_pcm = 1,
467		.init = broxton_rt298_codec_init,
468		.dai_fmt = SND_SOC_DAIFMT_DSP_A | SND_SOC_DAIFMT_NB_NF |
469						SND_SOC_DAIFMT_CBS_CFS,
470		.ignore_pmdown_time = 1,
471		.be_hw_params_fixup = broxton_ssp5_fixup,
472		.ops = &broxton_rt298_ops,
473		.dpcm_playback = 1,
474		.dpcm_capture = 1,
475		SND_SOC_DAILINK_REG(ssp5_pin, ssp5_codec, platform),
476	},
477	{
478		.name = "dmic01",
479		.id = 1,
480		.be_hw_params_fixup = broxton_dmic_fixup,
481		.ignore_suspend = 1,
482		.dpcm_capture = 1,
483		.no_pcm = 1,
484		SND_SOC_DAILINK_REG(dmic_pin, dmic_codec, platform),
485	},
486	{
487		.name = "dmic16k",
488		.id = 2,
489		.be_hw_params_fixup = broxton_dmic_fixup,
490		.ignore_suspend = 1,
491		.dpcm_capture = 1,
492		.no_pcm = 1,
493		SND_SOC_DAILINK_REG(dmic16k, dmic_codec, platform),
494	},
495	{
496		.name = "iDisp1",
497		.id = 3,
498		.init = broxton_hdmi_init,
499		.dpcm_playback = 1,
500		.no_pcm = 1,
501		SND_SOC_DAILINK_REG(idisp1_pin, idisp1_codec, platform),
502	},
503	{
504		.name = "iDisp2",
505		.id = 4,
506		.init = broxton_hdmi_init,
507		.dpcm_playback = 1,
508		.no_pcm = 1,
509		SND_SOC_DAILINK_REG(idisp2_pin, idisp2_codec, platform),
510	},
511	{
512		.name = "iDisp3",
513		.id = 5,
514		.init = broxton_hdmi_init,
515		.dpcm_playback = 1,
516		.no_pcm = 1,
517		SND_SOC_DAILINK_REG(idisp3_pin, idisp3_codec, platform),
518	},
519};
520
521#define NAME_SIZE	32
522static int bxt_card_late_probe(struct snd_soc_card *card)
523{
524	struct bxt_rt286_private *ctx = snd_soc_card_get_drvdata(card);
525	struct bxt_hdmi_pcm *pcm;
526	struct snd_soc_component *component = NULL;
527	int err, i = 0;
528	char jack_name[NAME_SIZE];
529
530	list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) {
531		component = pcm->codec_dai->component;
532		snprintf(jack_name, sizeof(jack_name),
533			"HDMI/DP, pcm=%d Jack", pcm->device);
534		err = snd_soc_card_jack_new(card, jack_name,
535					SND_JACK_AVOUT, &broxton_hdmi[i],
536					NULL, 0);
537
538		if (err)
539			return err;
540
541		err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device,
542						&broxton_hdmi[i]);
543		if (err < 0)
544			return err;
545
546		i++;
547	}
548
549	if (!component)
550		return -EINVAL;
551
552	return hdac_hdmi_jack_port_init(component, &card->dapm);
553}
554
555
556/* broxton audio machine driver for SPT + RT298S */
557static struct snd_soc_card broxton_rt298 = {
558	.name = "broxton-rt298",
559	.dai_link = broxton_rt298_dais,
560	.num_links = ARRAY_SIZE(broxton_rt298_dais),
561	.controls = broxton_controls,
562	.num_controls = ARRAY_SIZE(broxton_controls),
563	.dapm_widgets = broxton_widgets,
564	.num_dapm_widgets = ARRAY_SIZE(broxton_widgets),
565	.dapm_routes = broxton_rt298_map,
566	.num_dapm_routes = ARRAY_SIZE(broxton_rt298_map),
567	.fully_routed = true,
568	.late_probe = bxt_card_late_probe,
569
570};
571
572static struct snd_soc_card geminilake_rt298 = {
573	.name = "geminilake-rt298",
574	.dai_link = broxton_rt298_dais,
575	.num_links = ARRAY_SIZE(broxton_rt298_dais),
576	.controls = broxton_controls,
577	.num_controls = ARRAY_SIZE(broxton_controls),
578	.dapm_widgets = broxton_widgets,
579	.num_dapm_widgets = ARRAY_SIZE(broxton_widgets),
580	.dapm_routes = geminilake_rt298_map,
581	.num_dapm_routes = ARRAY_SIZE(geminilake_rt298_map),
582	.fully_routed = true,
583	.late_probe = bxt_card_late_probe,
584};
585
586static int broxton_audio_probe(struct platform_device *pdev)
587{
588	struct bxt_rt286_private *ctx;
589	struct snd_soc_card *card =
590			(struct snd_soc_card *)pdev->id_entry->driver_data;
591	struct snd_soc_acpi_mach *mach;
592	const char *platform_name;
593	int ret;
594	int i;
595
596	for (i = 0; i < ARRAY_SIZE(broxton_rt298_dais); i++) {
597		if (!strncmp(card->dai_link[i].codecs->name, "i2c-INT343A:00",
598			     I2C_NAME_SIZE)) {
599			if (!strncmp(card->name, "broxton-rt298",
600				     PLATFORM_NAME_SIZE)) {
601				card->dai_link[i].name = "SSP5-Codec";
602				card->dai_link[i].cpus->dai_name = "SSP5 Pin";
603			} else if (!strncmp(card->name, "geminilake-rt298",
604					    PLATFORM_NAME_SIZE)) {
605				card->dai_link[i].name = "SSP2-Codec";
606				card->dai_link[i].cpus->dai_name = "SSP2 Pin";
607			}
608		}
609	}
610
611	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
612	if (!ctx)
613		return -ENOMEM;
614
615	INIT_LIST_HEAD(&ctx->hdmi_pcm_list);
616
617	card->dev = &pdev->dev;
618	snd_soc_card_set_drvdata(card, ctx);
619
620	/* override plaform name, if required */
621	mach = (&pdev->dev)->platform_data;
622	platform_name = mach->mach_params.platform;
623
624	ret = snd_soc_fixup_dai_links_platform_name(card,
625						    platform_name);
626	if (ret)
627		return ret;
628
629	return devm_snd_soc_register_card(&pdev->dev, card);
630}
631
632static const struct platform_device_id bxt_board_ids[] = {
633	{ .name = "bxt_alc298s_i2s", .driver_data =
634				(unsigned long)&broxton_rt298 },
635	{ .name = "glk_alc298s_i2s", .driver_data =
636				(unsigned long)&geminilake_rt298 },
637	{}
638};
639
640static struct platform_driver broxton_audio = {
641	.probe = broxton_audio_probe,
642	.driver = {
643		.name = "bxt_alc298s_i2s",
644		.pm = &snd_soc_pm_ops,
645	},
646	.id_table = bxt_board_ids,
647};
648module_platform_driver(broxton_audio)
649
650/* Module information */
651MODULE_AUTHOR("Ramesh Babu <Ramesh.Babu@intel.com>");
652MODULE_AUTHOR("Senthilnathan Veppur <senthilnathanx.veppur@intel.com>");
653MODULE_DESCRIPTION("Intel SST Audio for Broxton");
654MODULE_LICENSE("GPL v2");
655MODULE_ALIAS("platform:bxt_alc298s_i2s");
656MODULE_ALIAS("platform:glk_alc298s_i2s");