1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * Intel Skylake I2S Machine Driver with MAXIM98357A
4  * and NAU88L25
5  *
6  * Copyright (C) 2015, Intel Corporation. All rights reserved.
7  */
8 
9 #include <linux/module.h>
10 #include <linux/platform_device.h>
11 #include <sound/core.h>
12 #include <sound/jack.h>
13 #include <sound/pcm.h>
14 #include <sound/pcm_params.h>
15 #include <sound/soc.h>
16 #include <sound/soc-acpi.h>
17 #include "../../codecs/nau8825.h"
18 #include "../../codecs/hdac_hdmi.h"
19 
20 #define SKL_NUVOTON_CODEC_DAI	"nau8825-hifi"
21 #define SKL_MAXIM_CODEC_DAI "HiFi"
22 #define DMIC_CH(p)     p->list[p->count-1]
23 
24 static struct snd_soc_jack skylake_headset;
25 static struct snd_soc_card skylake_audio_card;
26 static const struct snd_pcm_hw_constraint_list *dmic_constraints;
27 static struct snd_soc_jack skylake_hdmi[3];
28 
29 struct skl_hdmi_pcm {
30 	struct list_head head;
31 	struct snd_soc_dai *codec_dai;
32 	int device;
33 };
34 
35 struct skl_nau8825_private {
36 	struct list_head hdmi_pcm_list;
37 };
38 
39 enum {
40 	SKL_DPCM_AUDIO_PB = 0,
41 	SKL_DPCM_AUDIO_CP,
42 	SKL_DPCM_AUDIO_REF_CP,
43 	SKL_DPCM_AUDIO_DMIC_CP,
44 	SKL_DPCM_AUDIO_HDMI1_PB,
45 	SKL_DPCM_AUDIO_HDMI2_PB,
46 	SKL_DPCM_AUDIO_HDMI3_PB,
47 };
48 
platform_clock_control(struct snd_soc_dapm_widget * w,struct snd_kcontrol * k,int event)49 static int platform_clock_control(struct snd_soc_dapm_widget *w,
50 	struct snd_kcontrol *k, int  event)
51 {
52 	struct snd_soc_dapm_context *dapm = w->dapm;
53 	struct snd_soc_card *card = dapm->card;
54 	struct snd_soc_dai *codec_dai;
55 	int ret;
56 
57 	codec_dai = snd_soc_card_get_codec_dai(card, SKL_NUVOTON_CODEC_DAI);
58 	if (!codec_dai) {
59 		dev_err(card->dev, "Codec dai not found; Unable to set platform clock\n");
60 		return -EIO;
61 	}
62 
63 	if (SND_SOC_DAPM_EVENT_ON(event)) {
64 		ret = snd_soc_dai_set_sysclk(codec_dai,
65 				NAU8825_CLK_MCLK, 24000000, SND_SOC_CLOCK_IN);
66 		if (ret < 0) {
67 			dev_err(card->dev, "set sysclk err = %d\n", ret);
68 			return -EIO;
69 		}
70 	} else {
71 		ret = snd_soc_dai_set_sysclk(codec_dai,
72 				NAU8825_CLK_INTERNAL, 0, SND_SOC_CLOCK_IN);
73 		if (ret < 0) {
74 			dev_err(card->dev, "set sysclk err = %d\n", ret);
75 			return -EIO;
76 		}
77 	}
78 
79 	return ret;
80 }
81 
82 static const struct snd_kcontrol_new skylake_controls[] = {
83 	SOC_DAPM_PIN_SWITCH("Headphone Jack"),
84 	SOC_DAPM_PIN_SWITCH("Headset Mic"),
85 	SOC_DAPM_PIN_SWITCH("Spk"),
86 };
87 
88 static const struct snd_soc_dapm_widget skylake_widgets[] = {
89 	SND_SOC_DAPM_HP("Headphone Jack", NULL),
90 	SND_SOC_DAPM_MIC("Headset Mic", NULL),
91 	SND_SOC_DAPM_SPK("Spk", NULL),
92 	SND_SOC_DAPM_MIC("SoC DMIC", NULL),
93 	SND_SOC_DAPM_SPK("DP1", NULL),
94 	SND_SOC_DAPM_SPK("DP2", NULL),
95 	SND_SOC_DAPM_SUPPLY("Platform Clock", SND_SOC_NOPM, 0, 0,
96 			platform_clock_control, SND_SOC_DAPM_PRE_PMU |
97 			SND_SOC_DAPM_POST_PMD),
98 };
99 
100 static struct snd_soc_jack_pin jack_pins[] = {
101 	{
102 		.pin    = "Headphone Jack",
103 		.mask   = SND_JACK_HEADPHONE,
104 	},
105 	{
106 		.pin    = "Headset Mic",
107 		.mask   = SND_JACK_MICROPHONE,
108 	},
109 };
110 
111 static const struct snd_soc_dapm_route skylake_map[] = {
112 	/* HP jack connectors - unknown if we have jack detection */
113 	{ "Headphone Jack", NULL, "HPOL" },
114 	{ "Headphone Jack", NULL, "HPOR" },
115 
116 	/* speaker */
117 	{ "Spk", NULL, "Speaker" },
118 
119 	/* other jacks */
120 	{ "MIC", NULL, "Headset Mic" },
121 	{ "DMic", NULL, "SoC DMIC" },
122 
123 	/* CODEC BE connections */
124 	{ "HiFi Playback", NULL, "ssp0 Tx" },
125 	{ "ssp0 Tx", NULL, "codec0_out" },
126 
127 	{ "Playback", NULL, "ssp1 Tx" },
128 	{ "ssp1 Tx", NULL, "codec1_out" },
129 
130 	{ "codec0_in", NULL, "ssp1 Rx" },
131 	{ "ssp1 Rx", NULL, "Capture" },
132 
133 	/* DMIC */
134 	{ "dmic01_hifi", NULL, "DMIC01 Rx" },
135 	{ "DMIC01 Rx", NULL, "DMIC AIF" },
136 
137 	{ "hifi3", NULL, "iDisp3 Tx"},
138 	{ "iDisp3 Tx", NULL, "iDisp3_out"},
139 	{ "hifi2", NULL, "iDisp2 Tx"},
140 	{ "iDisp2 Tx", NULL, "iDisp2_out"},
141 	{ "hifi1", NULL, "iDisp1 Tx"},
142 	{ "iDisp1 Tx", NULL, "iDisp1_out"},
143 
144 	{ "Headphone Jack", NULL, "Platform Clock" },
145 	{ "Headset Mic", NULL, "Platform Clock" },
146 };
147 
skylake_ssp_fixup(struct snd_soc_pcm_runtime * rtd,struct snd_pcm_hw_params * params)148 static int skylake_ssp_fixup(struct snd_soc_pcm_runtime *rtd,
149 	struct snd_pcm_hw_params *params)
150 {
151 	struct snd_interval *rate = hw_param_interval(params,
152 			SNDRV_PCM_HW_PARAM_RATE);
153 	struct snd_interval *chan = hw_param_interval(params,
154 			SNDRV_PCM_HW_PARAM_CHANNELS);
155 	struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
156 
157 	/* The ADSP will convert the FE rate to 48k, stereo */
158 	rate->min = rate->max = 48000;
159 	chan->min = chan->max = 2;
160 
161 	/* set SSP0 to 24 bit */
162 	snd_mask_none(fmt);
163 	snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S24_LE);
164 
165 	return 0;
166 }
167 
skylake_nau8825_codec_init(struct snd_soc_pcm_runtime * rtd)168 static int skylake_nau8825_codec_init(struct snd_soc_pcm_runtime *rtd)
169 {
170 	int ret;
171 	struct snd_soc_component *component = asoc_rtd_to_codec(rtd, 0)->component;
172 
173 	/*
174 	 * Headset buttons map to the google Reference headset.
175 	 * These can be configured by userspace.
176 	 */
177 	ret = snd_soc_card_jack_new_pins(&skylake_audio_card, "Headset Jack",
178 					 SND_JACK_HEADSET | SND_JACK_BTN_0 | SND_JACK_BTN_1 |
179 					 SND_JACK_BTN_2 | SND_JACK_BTN_3, &skylake_headset,
180 					 jack_pins,
181 					 ARRAY_SIZE(jack_pins));
182 	if (ret) {
183 		dev_err(rtd->dev, "Headset Jack creation failed %d\n", ret);
184 		return ret;
185 	}
186 
187 	nau8825_enable_jack_detect(component, &skylake_headset);
188 
189 	snd_soc_dapm_ignore_suspend(&rtd->card->dapm, "SoC DMIC");
190 
191 	return ret;
192 }
193 
skylake_hdmi1_init(struct snd_soc_pcm_runtime * rtd)194 static int skylake_hdmi1_init(struct snd_soc_pcm_runtime *rtd)
195 {
196 	struct skl_nau8825_private *ctx = snd_soc_card_get_drvdata(rtd->card);
197 	struct snd_soc_dai *dai = asoc_rtd_to_codec(rtd, 0);
198 	struct skl_hdmi_pcm *pcm;
199 
200 	pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
201 	if (!pcm)
202 		return -ENOMEM;
203 
204 	pcm->device = SKL_DPCM_AUDIO_HDMI1_PB;
205 	pcm->codec_dai = dai;
206 
207 	list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
208 
209 	return 0;
210 }
211 
skylake_hdmi2_init(struct snd_soc_pcm_runtime * rtd)212 static int skylake_hdmi2_init(struct snd_soc_pcm_runtime *rtd)
213 {
214 	struct skl_nau8825_private *ctx = snd_soc_card_get_drvdata(rtd->card);
215 	struct snd_soc_dai *dai = asoc_rtd_to_codec(rtd, 0);
216 	struct skl_hdmi_pcm *pcm;
217 
218 	pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
219 	if (!pcm)
220 		return -ENOMEM;
221 
222 	pcm->device = SKL_DPCM_AUDIO_HDMI2_PB;
223 	pcm->codec_dai = dai;
224 
225 	list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
226 
227 	return 0;
228 }
229 
skylake_hdmi3_init(struct snd_soc_pcm_runtime * rtd)230 static int skylake_hdmi3_init(struct snd_soc_pcm_runtime *rtd)
231 {
232 	struct skl_nau8825_private *ctx = snd_soc_card_get_drvdata(rtd->card);
233 	struct snd_soc_dai *dai = asoc_rtd_to_codec(rtd, 0);
234 	struct skl_hdmi_pcm *pcm;
235 
236 	pcm = devm_kzalloc(rtd->card->dev, sizeof(*pcm), GFP_KERNEL);
237 	if (!pcm)
238 		return -ENOMEM;
239 
240 	pcm->device = SKL_DPCM_AUDIO_HDMI3_PB;
241 	pcm->codec_dai = dai;
242 
243 	list_add_tail(&pcm->head, &ctx->hdmi_pcm_list);
244 
245 	return 0;
246 }
247 
skylake_nau8825_fe_init(struct snd_soc_pcm_runtime * rtd)248 static int skylake_nau8825_fe_init(struct snd_soc_pcm_runtime *rtd)
249 {
250 	struct snd_soc_dapm_context *dapm;
251 	struct snd_soc_component *component = asoc_rtd_to_cpu(rtd, 0)->component;
252 
253 	dapm = snd_soc_component_get_dapm(component);
254 	snd_soc_dapm_ignore_suspend(dapm, "Reference Capture");
255 
256 	return 0;
257 }
258 
259 static const unsigned int rates[] = {
260 	48000,
261 };
262 
263 static const struct snd_pcm_hw_constraint_list constraints_rates = {
264 	.count = ARRAY_SIZE(rates),
265 	.list  = rates,
266 	.mask = 0,
267 };
268 
269 static const unsigned int channels[] = {
270 	2,
271 };
272 
273 static const struct snd_pcm_hw_constraint_list constraints_channels = {
274 	.count = ARRAY_SIZE(channels),
275 	.list = channels,
276 	.mask = 0,
277 };
278 
skl_fe_startup(struct snd_pcm_substream * substream)279 static int skl_fe_startup(struct snd_pcm_substream *substream)
280 {
281 	struct snd_pcm_runtime *runtime = substream->runtime;
282 
283 	/*
284 	 * On this platform for PCM device we support,
285 	 * 48Khz
286 	 * stereo
287 	 * 16 bit audio
288 	 */
289 
290 	runtime->hw.channels_max = 2;
291 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
292 					   &constraints_channels);
293 
294 	runtime->hw.formats = SNDRV_PCM_FMTBIT_S16_LE;
295 	snd_pcm_hw_constraint_msbits(runtime, 0, 16, 16);
296 
297 	snd_pcm_hw_constraint_list(runtime, 0,
298 				SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
299 
300 	return 0;
301 }
302 
303 static const struct snd_soc_ops skylake_nau8825_fe_ops = {
304 	.startup = skl_fe_startup,
305 };
306 
skylake_nau8825_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)307 static int skylake_nau8825_hw_params(struct snd_pcm_substream *substream,
308 	struct snd_pcm_hw_params *params)
309 {
310 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
311 	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
312 	int ret;
313 
314 	ret = snd_soc_dai_set_sysclk(codec_dai,
315 			NAU8825_CLK_MCLK, 24000000, SND_SOC_CLOCK_IN);
316 
317 	if (ret < 0)
318 		dev_err(rtd->dev, "snd_soc_dai_set_sysclk err = %d\n", ret);
319 
320 	return ret;
321 }
322 
323 static const struct snd_soc_ops skylake_nau8825_ops = {
324 	.hw_params = skylake_nau8825_hw_params,
325 };
326 
skylake_dmic_fixup(struct snd_soc_pcm_runtime * rtd,struct snd_pcm_hw_params * params)327 static int skylake_dmic_fixup(struct snd_soc_pcm_runtime *rtd,
328 		struct snd_pcm_hw_params *params)
329 {
330 	struct snd_interval *chan = hw_param_interval(params,
331 				SNDRV_PCM_HW_PARAM_CHANNELS);
332 
333 	if (params_channels(params) == 2 || DMIC_CH(dmic_constraints) == 2)
334 		chan->min = chan->max = 2;
335 	else
336 		chan->min = chan->max = 4;
337 
338 	return 0;
339 }
340 
341 static const unsigned int channels_dmic[] = {
342 	2, 4,
343 };
344 
345 static const struct snd_pcm_hw_constraint_list constraints_dmic_channels = {
346 	.count = ARRAY_SIZE(channels_dmic),
347 	.list = channels_dmic,
348 	.mask = 0,
349 };
350 
351 static const unsigned int dmic_2ch[] = {
352 	2,
353 };
354 
355 static const struct snd_pcm_hw_constraint_list constraints_dmic_2ch = {
356 	.count = ARRAY_SIZE(dmic_2ch),
357 	.list = dmic_2ch,
358 	.mask = 0,
359 };
360 
skylake_dmic_startup(struct snd_pcm_substream * substream)361 static int skylake_dmic_startup(struct snd_pcm_substream *substream)
362 {
363 	struct snd_pcm_runtime *runtime = substream->runtime;
364 
365 	runtime->hw.channels_max = DMIC_CH(dmic_constraints);
366 	snd_pcm_hw_constraint_list(runtime, 0, SNDRV_PCM_HW_PARAM_CHANNELS,
367 			dmic_constraints);
368 
369 	return snd_pcm_hw_constraint_list(substream->runtime, 0,
370 			SNDRV_PCM_HW_PARAM_RATE, &constraints_rates);
371 }
372 
373 static const struct snd_soc_ops skylake_dmic_ops = {
374 	.startup = skylake_dmic_startup,
375 };
376 
377 static const unsigned int rates_16000[] = {
378 	16000,
379 };
380 
381 static const struct snd_pcm_hw_constraint_list constraints_16000 = {
382 	.count = ARRAY_SIZE(rates_16000),
383 	.list  = rates_16000,
384 };
385 
386 static const unsigned int ch_mono[] = {
387 	1,
388 };
389 
390 static const struct snd_pcm_hw_constraint_list constraints_refcap = {
391 	.count = ARRAY_SIZE(ch_mono),
392 	.list  = ch_mono,
393 };
394 
skylake_refcap_startup(struct snd_pcm_substream * substream)395 static int skylake_refcap_startup(struct snd_pcm_substream *substream)
396 {
397 	substream->runtime->hw.channels_max = 1;
398 	snd_pcm_hw_constraint_list(substream->runtime, 0,
399 					SNDRV_PCM_HW_PARAM_CHANNELS,
400 					&constraints_refcap);
401 
402 	return snd_pcm_hw_constraint_list(substream->runtime, 0,
403 				SNDRV_PCM_HW_PARAM_RATE,
404 				&constraints_16000);
405 }
406 
407 static const struct snd_soc_ops skylake_refcap_ops = {
408 	.startup = skylake_refcap_startup,
409 };
410 
411 SND_SOC_DAILINK_DEF(dummy,
412 	DAILINK_COMP_ARRAY(COMP_DUMMY()));
413 
414 SND_SOC_DAILINK_DEF(system,
415 	DAILINK_COMP_ARRAY(COMP_CPU("System Pin")));
416 
417 SND_SOC_DAILINK_DEF(reference,
418 	DAILINK_COMP_ARRAY(COMP_CPU("Reference Pin")));
419 
420 SND_SOC_DAILINK_DEF(dmic,
421 	DAILINK_COMP_ARRAY(COMP_CPU("DMIC Pin")));
422 
423 SND_SOC_DAILINK_DEF(hdmi1,
424 	DAILINK_COMP_ARRAY(COMP_CPU("HDMI1 Pin")));
425 
426 SND_SOC_DAILINK_DEF(hdmi2,
427 	DAILINK_COMP_ARRAY(COMP_CPU("HDMI2 Pin")));
428 
429 SND_SOC_DAILINK_DEF(hdmi3,
430 	DAILINK_COMP_ARRAY(COMP_CPU("HDMI3 Pin")));
431 
432 SND_SOC_DAILINK_DEF(ssp0_pin,
433 	DAILINK_COMP_ARRAY(COMP_CPU("SSP0 Pin")));
434 SND_SOC_DAILINK_DEF(ssp0_codec,
435 	DAILINK_COMP_ARRAY(COMP_CODEC("MX98357A:00", SKL_MAXIM_CODEC_DAI)));
436 
437 SND_SOC_DAILINK_DEF(ssp1_pin,
438 	DAILINK_COMP_ARRAY(COMP_CPU("SSP1 Pin")));
439 SND_SOC_DAILINK_DEF(ssp1_codec,
440 	DAILINK_COMP_ARRAY(COMP_CODEC("i2c-10508825:00",
441 				      SKL_NUVOTON_CODEC_DAI)));
442 
443 SND_SOC_DAILINK_DEF(dmic_pin,
444 	DAILINK_COMP_ARRAY(COMP_CPU("DMIC01 Pin")));
445 SND_SOC_DAILINK_DEF(dmic_codec,
446 	DAILINK_COMP_ARRAY(COMP_CODEC("dmic-codec", "dmic-hifi")));
447 
448 SND_SOC_DAILINK_DEF(idisp1_pin,
449 	DAILINK_COMP_ARRAY(COMP_CPU("iDisp1 Pin")));
450 SND_SOC_DAILINK_DEF(idisp1_codec,
451 	DAILINK_COMP_ARRAY(COMP_CODEC("ehdaudio0D2", "intel-hdmi-hifi1")));
452 
453 SND_SOC_DAILINK_DEF(idisp2_pin,
454 	DAILINK_COMP_ARRAY(COMP_CPU("iDisp2 Pin")));
455 SND_SOC_DAILINK_DEF(idisp2_codec,
456 	DAILINK_COMP_ARRAY(COMP_CODEC("ehdaudio0D2", "intel-hdmi-hifi2")));
457 
458 SND_SOC_DAILINK_DEF(idisp3_pin,
459 	DAILINK_COMP_ARRAY(COMP_CPU("iDisp3 Pin")));
460 SND_SOC_DAILINK_DEF(idisp3_codec,
461 	DAILINK_COMP_ARRAY(COMP_CODEC("ehdaudio0D2", "intel-hdmi-hifi3")));
462 
463 SND_SOC_DAILINK_DEF(platform,
464 	DAILINK_COMP_ARRAY(COMP_PLATFORM("0000:00:1f.3")));
465 
466 /* skylake digital audio interface glue - connects codec <--> CPU */
467 static struct snd_soc_dai_link skylake_dais[] = {
468 	/* Front End DAI links */
469 	[SKL_DPCM_AUDIO_PB] = {
470 		.name = "Skl Audio Port",
471 		.stream_name = "Audio",
472 		.dynamic = 1,
473 		.nonatomic = 1,
474 		.init = skylake_nau8825_fe_init,
475 		.trigger = {
476 			SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
477 		.dpcm_playback = 1,
478 		.ops = &skylake_nau8825_fe_ops,
479 		SND_SOC_DAILINK_REG(system, dummy, platform),
480 	},
481 	[SKL_DPCM_AUDIO_CP] = {
482 		.name = "Skl Audio Capture Port",
483 		.stream_name = "Audio Record",
484 		.dynamic = 1,
485 		.nonatomic = 1,
486 		.trigger = {
487 			SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
488 		.dpcm_capture = 1,
489 		.ops = &skylake_nau8825_fe_ops,
490 		SND_SOC_DAILINK_REG(system, dummy, platform),
491 	},
492 	[SKL_DPCM_AUDIO_REF_CP] = {
493 		.name = "Skl Audio Reference cap",
494 		.stream_name = "Wake on Voice",
495 		.init = NULL,
496 		.dpcm_capture = 1,
497 		.nonatomic = 1,
498 		.dynamic = 1,
499 		.ops = &skylake_refcap_ops,
500 		SND_SOC_DAILINK_REG(reference, dummy, platform),
501 	},
502 	[SKL_DPCM_AUDIO_DMIC_CP] = {
503 		.name = "Skl Audio DMIC cap",
504 		.stream_name = "dmiccap",
505 		.init = NULL,
506 		.dpcm_capture = 1,
507 		.nonatomic = 1,
508 		.dynamic = 1,
509 		.ops = &skylake_dmic_ops,
510 		SND_SOC_DAILINK_REG(dmic, dummy, platform),
511 	},
512 	[SKL_DPCM_AUDIO_HDMI1_PB] = {
513 		.name = "Skl HDMI Port1",
514 		.stream_name = "Hdmi1",
515 		.dpcm_playback = 1,
516 		.init = NULL,
517 		.trigger = {
518 			SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
519 		.nonatomic = 1,
520 		.dynamic = 1,
521 		SND_SOC_DAILINK_REG(hdmi1, dummy, platform),
522 	},
523 	[SKL_DPCM_AUDIO_HDMI2_PB] = {
524 		.name = "Skl HDMI Port2",
525 		.stream_name = "Hdmi2",
526 		.dpcm_playback = 1,
527 		.init = NULL,
528 		.trigger = {
529 			SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
530 		.nonatomic = 1,
531 		.dynamic = 1,
532 		SND_SOC_DAILINK_REG(hdmi2, dummy, platform),
533 	},
534 	[SKL_DPCM_AUDIO_HDMI3_PB] = {
535 		.name = "Skl HDMI Port3",
536 		.stream_name = "Hdmi3",
537 		.trigger = {
538 			SND_SOC_DPCM_TRIGGER_POST, SND_SOC_DPCM_TRIGGER_POST},
539 		.dpcm_playback = 1,
540 		.init = NULL,
541 		.nonatomic = 1,
542 		.dynamic = 1,
543 		SND_SOC_DAILINK_REG(hdmi3, dummy, platform),
544 	},
545 
546 	/* Back End DAI links */
547 	{
548 		/* SSP0 - Codec */
549 		.name = "SSP0-Codec",
550 		.id = 0,
551 		.no_pcm = 1,
552 		.dai_fmt = SND_SOC_DAIFMT_I2S |
553 			SND_SOC_DAIFMT_NB_NF |
554 			SND_SOC_DAIFMT_CBC_CFC,
555 		.ignore_pmdown_time = 1,
556 		.be_hw_params_fixup = skylake_ssp_fixup,
557 		.dpcm_playback = 1,
558 		SND_SOC_DAILINK_REG(ssp0_pin, ssp0_codec, platform),
559 	},
560 	{
561 		/* SSP1 - Codec */
562 		.name = "SSP1-Codec",
563 		.id = 1,
564 		.no_pcm = 1,
565 		.init = skylake_nau8825_codec_init,
566 		.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
567 			SND_SOC_DAIFMT_CBC_CFC,
568 		.ignore_pmdown_time = 1,
569 		.be_hw_params_fixup = skylake_ssp_fixup,
570 		.ops = &skylake_nau8825_ops,
571 		.dpcm_playback = 1,
572 		.dpcm_capture = 1,
573 		SND_SOC_DAILINK_REG(ssp1_pin, ssp1_codec, platform),
574 	},
575 	{
576 		.name = "dmic01",
577 		.id = 2,
578 		.be_hw_params_fixup = skylake_dmic_fixup,
579 		.ignore_suspend = 1,
580 		.dpcm_capture = 1,
581 		.no_pcm = 1,
582 		SND_SOC_DAILINK_REG(dmic_pin, dmic_codec, platform),
583 	},
584 	{
585 		.name = "iDisp1",
586 		.id = 3,
587 		.dpcm_playback = 1,
588 		.init = skylake_hdmi1_init,
589 		.no_pcm = 1,
590 		SND_SOC_DAILINK_REG(idisp1_pin, idisp1_codec, platform),
591 	},
592 	{
593 		.name = "iDisp2",
594 		.id = 4,
595 		.init = skylake_hdmi2_init,
596 		.dpcm_playback = 1,
597 		.no_pcm = 1,
598 		SND_SOC_DAILINK_REG(idisp2_pin, idisp2_codec, platform),
599 	},
600 	{
601 		.name = "iDisp3",
602 		.id = 5,
603 		.init = skylake_hdmi3_init,
604 		.dpcm_playback = 1,
605 		.no_pcm = 1,
606 		SND_SOC_DAILINK_REG(idisp3_pin, idisp3_codec, platform),
607 	},
608 };
609 
610 #define NAME_SIZE	32
skylake_card_late_probe(struct snd_soc_card * card)611 static int skylake_card_late_probe(struct snd_soc_card *card)
612 {
613 	struct skl_nau8825_private *ctx = snd_soc_card_get_drvdata(card);
614 	struct skl_hdmi_pcm *pcm;
615 	struct snd_soc_component *component = NULL;
616 	int err, i = 0;
617 	char jack_name[NAME_SIZE];
618 
619 	list_for_each_entry(pcm, &ctx->hdmi_pcm_list, head) {
620 		component = pcm->codec_dai->component;
621 		snprintf(jack_name, sizeof(jack_name),
622 			"HDMI/DP, pcm=%d Jack", pcm->device);
623 		err = snd_soc_card_jack_new(card, jack_name,
624 					SND_JACK_AVOUT,
625 					&skylake_hdmi[i]);
626 
627 		if (err)
628 			return err;
629 
630 		err = hdac_hdmi_jack_init(pcm->codec_dai, pcm->device,
631 						&skylake_hdmi[i]);
632 		if (err < 0)
633 			return err;
634 
635 		i++;
636 	}
637 
638 	if (!component)
639 		return -EINVAL;
640 
641 	return hdac_hdmi_jack_port_init(component, &card->dapm);
642 }
643 
644 /* skylake audio machine driver for SPT + NAU88L25 */
645 static struct snd_soc_card skylake_audio_card = {
646 	.name = "sklnau8825max",
647 	.owner = THIS_MODULE,
648 	.dai_link = skylake_dais,
649 	.num_links = ARRAY_SIZE(skylake_dais),
650 	.controls = skylake_controls,
651 	.num_controls = ARRAY_SIZE(skylake_controls),
652 	.dapm_widgets = skylake_widgets,
653 	.num_dapm_widgets = ARRAY_SIZE(skylake_widgets),
654 	.dapm_routes = skylake_map,
655 	.num_dapm_routes = ARRAY_SIZE(skylake_map),
656 	.fully_routed = true,
657 	.disable_route_checks = true,
658 	.late_probe = skylake_card_late_probe,
659 };
660 
skylake_audio_probe(struct platform_device * pdev)661 static int skylake_audio_probe(struct platform_device *pdev)
662 {
663 	struct skl_nau8825_private *ctx;
664 	struct snd_soc_acpi_mach *mach;
665 
666 	ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
667 	if (!ctx)
668 		return -ENOMEM;
669 
670 	INIT_LIST_HEAD(&ctx->hdmi_pcm_list);
671 
672 	skylake_audio_card.dev = &pdev->dev;
673 	snd_soc_card_set_drvdata(&skylake_audio_card, ctx);
674 
675 	mach = pdev->dev.platform_data;
676 	if (mach)
677 		dmic_constraints = mach->mach_params.dmic_num == 2 ?
678 			&constraints_dmic_2ch : &constraints_dmic_channels;
679 
680 	return devm_snd_soc_register_card(&pdev->dev, &skylake_audio_card);
681 }
682 
683 static const struct platform_device_id skl_board_ids[] = {
684 	{ .name = "skl_n88l25_m98357a" },
685 	{ .name = "kbl_n88l25_m98357a" },
686 	{ }
687 };
688 MODULE_DEVICE_TABLE(platform, skl_board_ids);
689 
690 static struct platform_driver skylake_audio = {
691 	.probe = skylake_audio_probe,
692 	.driver = {
693 		.name = "skl_n88l25_m98357a",
694 		.pm = &snd_soc_pm_ops,
695 	},
696 	.id_table = skl_board_ids,
697 };
698 
699 module_platform_driver(skylake_audio)
700 
701 /* Module information */
702 MODULE_DESCRIPTION("Audio Machine driver-NAU88L25 & MAX98357A in I2S mode");
703 MODULE_AUTHOR("Rohit Ainapure <rohit.m.ainapure@intel.com");
704 MODULE_LICENSE("GPL v2");
705