xref: /openbmc/linux/sound/soc/qcom/sdm845.c (revision 48ca54e3)
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * Copyright (c) 2018, The Linux Foundation. All rights reserved.
4  */
5 
6 #include <linux/module.h>
7 #include <linux/platform_device.h>
8 #include <linux/of_device.h>
9 #include <sound/core.h>
10 #include <sound/pcm.h>
11 #include <sound/pcm_params.h>
12 #include <sound/jack.h>
13 #include <sound/soc.h>
14 #include <linux/soundwire/sdw.h>
15 #include <uapi/linux/input-event-codes.h>
16 #include "common.h"
17 #include "qdsp6/q6afe.h"
18 #include "../codecs/rt5663.h"
19 
20 #define DRIVER_NAME	"sdm845"
21 #define DEFAULT_SAMPLE_RATE_48K		48000
22 #define DEFAULT_MCLK_RATE		24576000
23 #define TDM_BCLK_RATE		6144000
24 #define MI2S_BCLK_RATE		1536000
25 #define LEFT_SPK_TDM_TX_MASK    0x30
26 #define RIGHT_SPK_TDM_TX_MASK   0xC0
27 #define SPK_TDM_RX_MASK         0x03
28 #define NUM_TDM_SLOTS           8
29 #define SLIM_MAX_TX_PORTS 16
30 #define SLIM_MAX_RX_PORTS 13
31 #define WCD934X_DEFAULT_MCLK_RATE	9600000
32 
33 struct sdm845_snd_data {
34 	struct snd_soc_jack jack;
35 	bool jack_setup;
36 	bool slim_port_setup;
37 	bool stream_prepared[AFE_PORT_MAX];
38 	struct snd_soc_card *card;
39 	uint32_t pri_mi2s_clk_count;
40 	uint32_t sec_mi2s_clk_count;
41 	uint32_t quat_tdm_clk_count;
42 	struct sdw_stream_runtime *sruntime[AFE_PORT_MAX];
43 };
44 
45 static unsigned int tdm_slot_offset[8] = {0, 4, 8, 12, 16, 20, 24, 28};
46 
47 static int sdm845_slim_snd_hw_params(struct snd_pcm_substream *substream,
48 				     struct snd_pcm_hw_params *params)
49 {
50 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
51 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
52 	struct snd_soc_dai *codec_dai;
53 	struct sdm845_snd_data *pdata = snd_soc_card_get_drvdata(rtd->card);
54 	u32 rx_ch[SLIM_MAX_RX_PORTS], tx_ch[SLIM_MAX_TX_PORTS];
55 	struct sdw_stream_runtime *sruntime;
56 	u32 rx_ch_cnt = 0, tx_ch_cnt = 0;
57 	int ret = 0, i;
58 
59 	for_each_rtd_codec_dais(rtd, i, codec_dai) {
60 		sruntime = snd_soc_dai_get_stream(codec_dai,
61 						  substream->stream);
62 		if (sruntime != ERR_PTR(-ENOTSUPP))
63 			pdata->sruntime[cpu_dai->id] = sruntime;
64 
65 		ret = snd_soc_dai_get_channel_map(codec_dai,
66 				&tx_ch_cnt, tx_ch, &rx_ch_cnt, rx_ch);
67 
68 		if (ret != 0 && ret != -ENOTSUPP) {
69 			pr_err("failed to get codec chan map, err:%d\n", ret);
70 			return ret;
71 		} else if (ret == -ENOTSUPP) {
72 			/* Ignore unsupported */
73 			continue;
74 		}
75 
76 		if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
77 			ret = snd_soc_dai_set_channel_map(cpu_dai, 0, NULL,
78 							  rx_ch_cnt, rx_ch);
79 		else
80 			ret = snd_soc_dai_set_channel_map(cpu_dai, tx_ch_cnt,
81 							  tx_ch, 0, NULL);
82 	}
83 
84 	return 0;
85 }
86 
87 static int sdm845_tdm_snd_hw_params(struct snd_pcm_substream *substream,
88 					struct snd_pcm_hw_params *params)
89 {
90 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
91 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
92 	struct snd_soc_dai *codec_dai;
93 	int ret = 0, j;
94 	int channels, slot_width;
95 
96 	switch (params_format(params)) {
97 	case SNDRV_PCM_FORMAT_S16_LE:
98 		slot_width = 16;
99 		break;
100 	default:
101 		dev_err(rtd->dev, "%s: invalid param format 0x%x\n",
102 				__func__, params_format(params));
103 		return -EINVAL;
104 	}
105 
106 	channels = params_channels(params);
107 	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
108 		ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0, 0x3,
109 				8, slot_width);
110 		if (ret < 0) {
111 			dev_err(rtd->dev, "%s: failed to set tdm slot, err:%d\n",
112 					__func__, ret);
113 			goto end;
114 		}
115 
116 		ret = snd_soc_dai_set_channel_map(cpu_dai, 0, NULL,
117 				channels, tdm_slot_offset);
118 		if (ret < 0) {
119 			dev_err(rtd->dev, "%s: failed to set channel map, err:%d\n",
120 					__func__, ret);
121 			goto end;
122 		}
123 	} else {
124 		ret = snd_soc_dai_set_tdm_slot(cpu_dai, 0xf, 0,
125 				8, slot_width);
126 		if (ret < 0) {
127 			dev_err(rtd->dev, "%s: failed to set tdm slot, err:%d\n",
128 					__func__, ret);
129 			goto end;
130 		}
131 
132 		ret = snd_soc_dai_set_channel_map(cpu_dai, channels,
133 				tdm_slot_offset, 0, NULL);
134 		if (ret < 0) {
135 			dev_err(rtd->dev, "%s: failed to set channel map, err:%d\n",
136 					__func__, ret);
137 			goto end;
138 		}
139 	}
140 
141 	for_each_rtd_codec_dais(rtd, j, codec_dai) {
142 
143 		if (!strcmp(codec_dai->component->name_prefix, "Left")) {
144 			ret = snd_soc_dai_set_tdm_slot(
145 					codec_dai, LEFT_SPK_TDM_TX_MASK,
146 					SPK_TDM_RX_MASK, NUM_TDM_SLOTS,
147 					slot_width);
148 			if (ret < 0) {
149 				dev_err(rtd->dev,
150 					"DEV0 TDM slot err:%d\n", ret);
151 				return ret;
152 			}
153 		}
154 
155 		if (!strcmp(codec_dai->component->name_prefix, "Right")) {
156 			ret = snd_soc_dai_set_tdm_slot(
157 					codec_dai, RIGHT_SPK_TDM_TX_MASK,
158 					SPK_TDM_RX_MASK, NUM_TDM_SLOTS,
159 					slot_width);
160 			if (ret < 0) {
161 				dev_err(rtd->dev,
162 					"DEV1 TDM slot err:%d\n", ret);
163 				return ret;
164 			}
165 		}
166 	}
167 
168 end:
169 	return ret;
170 }
171 
172 static int sdm845_snd_hw_params(struct snd_pcm_substream *substream,
173 					struct snd_pcm_hw_params *params)
174 {
175 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
176 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
177 	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
178 	int ret = 0;
179 
180 	switch (cpu_dai->id) {
181 	case PRIMARY_MI2S_RX:
182 	case PRIMARY_MI2S_TX:
183 		/*
184 		 * Use ASRC for internal clocks, as PLL rate isn't multiple
185 		 * of BCLK.
186 		 */
187 		rt5663_sel_asrc_clk_src(
188 			codec_dai->component,
189 			RT5663_DA_STEREO_FILTER | RT5663_AD_STEREO_FILTER,
190 			RT5663_CLK_SEL_I2S1_ASRC);
191 		ret = snd_soc_dai_set_sysclk(
192 			codec_dai, RT5663_SCLK_S_MCLK, DEFAULT_MCLK_RATE,
193 			SND_SOC_CLOCK_IN);
194 		if (ret < 0)
195 			dev_err(rtd->dev,
196 				"snd_soc_dai_set_sysclk err = %d\n", ret);
197 		break;
198 	case QUATERNARY_TDM_RX_0:
199 	case QUATERNARY_TDM_TX_0:
200 		ret = sdm845_tdm_snd_hw_params(substream, params);
201 		break;
202 	case SLIMBUS_0_RX...SLIMBUS_6_TX:
203 		ret = sdm845_slim_snd_hw_params(substream, params);
204 		break;
205 	case QUATERNARY_MI2S_RX:
206 		break;
207 	default:
208 		pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
209 		break;
210 	}
211 	return ret;
212 }
213 
214 static void sdm845_jack_free(struct snd_jack *jack)
215 {
216 	struct snd_soc_component *component = jack->private_data;
217 
218 	snd_soc_component_set_jack(component, NULL, NULL);
219 }
220 
221 static int sdm845_dai_init(struct snd_soc_pcm_runtime *rtd)
222 {
223 	struct snd_soc_component *component;
224 	struct snd_soc_card *card = rtd->card;
225 	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
226 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
227 	struct sdm845_snd_data *pdata = snd_soc_card_get_drvdata(card);
228 	struct snd_soc_dai_link *link = rtd->dai_link;
229 	struct snd_jack *jack;
230 	/*
231 	 * Codec SLIMBUS configuration
232 	 * RX1, RX2, RX3, RX4, RX5, RX6, RX7, RX8, RX9, RX10, RX11, RX12, RX13
233 	 * TX1, TX2, TX3, TX4, TX5, TX6, TX7, TX8, TX9, TX10, TX11, TX12, TX13
234 	 * TX14, TX15, TX16
235 	 */
236 	unsigned int rx_ch[SLIM_MAX_RX_PORTS] = {144, 145, 146, 147, 148, 149,
237 					150, 151, 152, 153, 154, 155, 156};
238 	unsigned int tx_ch[SLIM_MAX_TX_PORTS] = {128, 129, 130, 131, 132, 133,
239 					    134, 135, 136, 137, 138, 139,
240 					    140, 141, 142, 143};
241 	int rval, i;
242 
243 
244 	if (!pdata->jack_setup) {
245 		rval = snd_soc_card_jack_new(card, "Headset Jack",
246 				SND_JACK_HEADSET |
247 				SND_JACK_HEADPHONE |
248 				SND_JACK_BTN_0 | SND_JACK_BTN_1 |
249 				SND_JACK_BTN_2 | SND_JACK_BTN_3,
250 				&pdata->jack);
251 
252 		if (rval < 0) {
253 			dev_err(card->dev, "Unable to add Headphone Jack\n");
254 			return rval;
255 		}
256 
257 		jack = pdata->jack.jack;
258 
259 		snd_jack_set_key(jack, SND_JACK_BTN_0, KEY_PLAYPAUSE);
260 		snd_jack_set_key(jack, SND_JACK_BTN_1, KEY_VOICECOMMAND);
261 		snd_jack_set_key(jack, SND_JACK_BTN_2, KEY_VOLUMEUP);
262 		snd_jack_set_key(jack, SND_JACK_BTN_3, KEY_VOLUMEDOWN);
263 		pdata->jack_setup = true;
264 	}
265 
266 	switch (cpu_dai->id) {
267 	case PRIMARY_MI2S_RX:
268 		jack  = pdata->jack.jack;
269 		component = codec_dai->component;
270 
271 		jack->private_data = component;
272 		jack->private_free = sdm845_jack_free;
273 		rval = snd_soc_component_set_jack(component,
274 						  &pdata->jack, NULL);
275 		if (rval != 0 && rval != -ENOTSUPP) {
276 			dev_warn(card->dev, "Failed to set jack: %d\n", rval);
277 			return rval;
278 		}
279 		break;
280 	case SLIMBUS_0_RX...SLIMBUS_6_TX:
281 		/* setting up wcd multiple times for slim port is redundant */
282 		if (pdata->slim_port_setup || !link->no_pcm)
283 			return 0;
284 
285 		for_each_rtd_codec_dais(rtd, i, codec_dai) {
286 			rval = snd_soc_dai_set_channel_map(codec_dai,
287 							  ARRAY_SIZE(tx_ch),
288 							  tx_ch,
289 							  ARRAY_SIZE(rx_ch),
290 							  rx_ch);
291 			if (rval != 0 && rval != -ENOTSUPP)
292 				return rval;
293 
294 			snd_soc_dai_set_sysclk(codec_dai, 0,
295 					       WCD934X_DEFAULT_MCLK_RATE,
296 					       SNDRV_PCM_STREAM_PLAYBACK);
297 
298 			rval = snd_soc_component_set_jack(codec_dai->component,
299 							  &pdata->jack, NULL);
300 			if (rval != 0 && rval != -ENOTSUPP) {
301 				dev_warn(card->dev, "Failed to set jack: %d\n", rval);
302 				return rval;
303 			}
304 		}
305 
306 		pdata->slim_port_setup = true;
307 
308 		break;
309 	default:
310 		break;
311 	}
312 
313 	return 0;
314 }
315 
316 
317 static int sdm845_snd_startup(struct snd_pcm_substream *substream)
318 {
319 	unsigned int fmt = SND_SOC_DAIFMT_CBS_CFS;
320 	unsigned int codec_dai_fmt = SND_SOC_DAIFMT_CBS_CFS;
321 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
322 	struct snd_soc_card *card = rtd->card;
323 	struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card);
324 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
325 	struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
326 	int j;
327 	int ret;
328 
329 	switch (cpu_dai->id) {
330 	case PRIMARY_MI2S_RX:
331 	case PRIMARY_MI2S_TX:
332 		codec_dai_fmt |= SND_SOC_DAIFMT_NB_NF;
333 		if (++(data->pri_mi2s_clk_count) == 1) {
334 			snd_soc_dai_set_sysclk(cpu_dai,
335 				Q6AFE_LPASS_CLK_ID_MCLK_1,
336 				DEFAULT_MCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
337 			snd_soc_dai_set_sysclk(cpu_dai,
338 				Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT,
339 				MI2S_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
340 		}
341 		snd_soc_dai_set_fmt(cpu_dai, fmt);
342 		snd_soc_dai_set_fmt(codec_dai, codec_dai_fmt);
343 		break;
344 
345 	case SECONDARY_MI2S_TX:
346 		codec_dai_fmt |= SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_I2S;
347 		if (++(data->sec_mi2s_clk_count) == 1) {
348 			snd_soc_dai_set_sysclk(cpu_dai,
349 				Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT,
350 				MI2S_BCLK_RATE,	SNDRV_PCM_STREAM_CAPTURE);
351 		}
352 		snd_soc_dai_set_fmt(cpu_dai, fmt);
353 		snd_soc_dai_set_fmt(codec_dai, codec_dai_fmt);
354 		break;
355 	case QUATERNARY_MI2S_RX:
356 		snd_soc_dai_set_sysclk(cpu_dai,
357 			Q6AFE_LPASS_CLK_ID_QUAD_MI2S_IBIT,
358 			MI2S_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
359 		snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_CBS_CFS);
360 
361 
362 		break;
363 
364 	case QUATERNARY_TDM_RX_0:
365 	case QUATERNARY_TDM_TX_0:
366 		if (++(data->quat_tdm_clk_count) == 1) {
367 			snd_soc_dai_set_sysclk(cpu_dai,
368 				Q6AFE_LPASS_CLK_ID_QUAD_TDM_IBIT,
369 				TDM_BCLK_RATE, SNDRV_PCM_STREAM_PLAYBACK);
370 		}
371 
372 		codec_dai_fmt |= SND_SOC_DAIFMT_IB_NF | SND_SOC_DAIFMT_DSP_B;
373 
374 		for_each_rtd_codec_dais(rtd, j, codec_dai) {
375 
376 			if (!strcmp(codec_dai->component->name_prefix,
377 				    "Left")) {
378 				ret = snd_soc_dai_set_fmt(
379 						codec_dai, codec_dai_fmt);
380 				if (ret < 0) {
381 					dev_err(rtd->dev,
382 						"Left TDM fmt err:%d\n", ret);
383 					return ret;
384 				}
385 			}
386 
387 			if (!strcmp(codec_dai->component->name_prefix,
388 				    "Right")) {
389 				ret = snd_soc_dai_set_fmt(
390 						codec_dai, codec_dai_fmt);
391 				if (ret < 0) {
392 					dev_err(rtd->dev,
393 						"Right TDM slot err:%d\n", ret);
394 					return ret;
395 				}
396 			}
397 		}
398 		break;
399 	case SLIMBUS_0_RX...SLIMBUS_6_TX:
400 		break;
401 
402 	default:
403 		pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
404 		break;
405 	}
406 	return 0;
407 }
408 
409 static void  sdm845_snd_shutdown(struct snd_pcm_substream *substream)
410 {
411 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
412 	struct snd_soc_card *card = rtd->card;
413 	struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card);
414 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
415 
416 	switch (cpu_dai->id) {
417 	case PRIMARY_MI2S_RX:
418 	case PRIMARY_MI2S_TX:
419 		if (--(data->pri_mi2s_clk_count) == 0) {
420 			snd_soc_dai_set_sysclk(cpu_dai,
421 				Q6AFE_LPASS_CLK_ID_MCLK_1,
422 				0, SNDRV_PCM_STREAM_PLAYBACK);
423 			snd_soc_dai_set_sysclk(cpu_dai,
424 				Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT,
425 				0, SNDRV_PCM_STREAM_PLAYBACK);
426 		}
427 		break;
428 
429 	case SECONDARY_MI2S_TX:
430 		if (--(data->sec_mi2s_clk_count) == 0) {
431 			snd_soc_dai_set_sysclk(cpu_dai,
432 				Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT,
433 				0, SNDRV_PCM_STREAM_CAPTURE);
434 		}
435 		break;
436 
437 	case QUATERNARY_TDM_RX_0:
438 	case QUATERNARY_TDM_TX_0:
439 		if (--(data->quat_tdm_clk_count) == 0) {
440 			snd_soc_dai_set_sysclk(cpu_dai,
441 				Q6AFE_LPASS_CLK_ID_QUAD_TDM_IBIT,
442 				0, SNDRV_PCM_STREAM_PLAYBACK);
443 		}
444 		break;
445 	case SLIMBUS_0_RX...SLIMBUS_6_TX:
446 	case QUATERNARY_MI2S_RX:
447 		break;
448 
449 	default:
450 		pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
451 		break;
452 	}
453 }
454 
455 static int sdm845_snd_prepare(struct snd_pcm_substream *substream)
456 {
457 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
458 	struct sdm845_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
459 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
460 	struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];
461 	int ret;
462 
463 	if (!sruntime)
464 		return 0;
465 
466 	if (data->stream_prepared[cpu_dai->id]) {
467 		sdw_disable_stream(sruntime);
468 		sdw_deprepare_stream(sruntime);
469 		data->stream_prepared[cpu_dai->id] = false;
470 	}
471 
472 	ret = sdw_prepare_stream(sruntime);
473 	if (ret)
474 		return ret;
475 
476 	/**
477 	 * NOTE: there is a strict hw requirement about the ordering of port
478 	 * enables and actual WSA881x PA enable. PA enable should only happen
479 	 * after soundwire ports are enabled if not DC on the line is
480 	 * accumulated resulting in Click/Pop Noise
481 	 * PA enable/mute are handled as part of codec DAPM and digital mute.
482 	 */
483 
484 	ret = sdw_enable_stream(sruntime);
485 	if (ret) {
486 		sdw_deprepare_stream(sruntime);
487 		return ret;
488 	}
489 	data->stream_prepared[cpu_dai->id] = true;
490 
491 	return ret;
492 }
493 
494 static int sdm845_snd_hw_free(struct snd_pcm_substream *substream)
495 {
496 	struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
497 	struct sdm845_snd_data *data = snd_soc_card_get_drvdata(rtd->card);
498 	struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
499 	struct sdw_stream_runtime *sruntime = data->sruntime[cpu_dai->id];
500 
501 	if (sruntime && data->stream_prepared[cpu_dai->id]) {
502 		sdw_disable_stream(sruntime);
503 		sdw_deprepare_stream(sruntime);
504 		data->stream_prepared[cpu_dai->id] = false;
505 	}
506 
507 	return 0;
508 }
509 
510 static const struct snd_soc_ops sdm845_be_ops = {
511 	.hw_params = sdm845_snd_hw_params,
512 	.hw_free = sdm845_snd_hw_free,
513 	.prepare = sdm845_snd_prepare,
514 	.startup = sdm845_snd_startup,
515 	.shutdown = sdm845_snd_shutdown,
516 };
517 
518 static int sdm845_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
519 				struct snd_pcm_hw_params *params)
520 {
521 	struct snd_interval *rate = hw_param_interval(params,
522 					SNDRV_PCM_HW_PARAM_RATE);
523 	struct snd_interval *channels = hw_param_interval(params,
524 					SNDRV_PCM_HW_PARAM_CHANNELS);
525 	struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
526 
527 	rate->min = rate->max = DEFAULT_SAMPLE_RATE_48K;
528 	channels->min = channels->max = 2;
529 	snd_mask_set_format(fmt, SNDRV_PCM_FORMAT_S16_LE);
530 
531 	return 0;
532 }
533 
534 static const struct snd_soc_dapm_widget sdm845_snd_widgets[] = {
535 	SND_SOC_DAPM_HP("Headphone Jack", NULL),
536 	SND_SOC_DAPM_MIC("Headset Mic", NULL),
537 	SND_SOC_DAPM_SPK("Left Spk", NULL),
538 	SND_SOC_DAPM_SPK("Right Spk", NULL),
539 	SND_SOC_DAPM_MIC("Int Mic", NULL),
540 };
541 
542 static void sdm845_add_ops(struct snd_soc_card *card)
543 {
544 	struct snd_soc_dai_link *link;
545 	int i;
546 
547 	for_each_card_prelinks(card, i, link) {
548 		if (link->no_pcm == 1) {
549 			link->ops = &sdm845_be_ops;
550 			link->be_hw_params_fixup = sdm845_be_hw_params_fixup;
551 		}
552 		link->init = sdm845_dai_init;
553 	}
554 }
555 
556 static int sdm845_snd_platform_probe(struct platform_device *pdev)
557 {
558 	struct snd_soc_card *card;
559 	struct sdm845_snd_data *data;
560 	struct device *dev = &pdev->dev;
561 	int ret;
562 
563 	card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
564 	if (!card)
565 		return -ENOMEM;
566 
567 	/* Allocate the private data */
568 	data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
569 	if (!data)
570 		return -ENOMEM;
571 
572 	card->driver_name = DRIVER_NAME;
573 	card->dapm_widgets = sdm845_snd_widgets;
574 	card->num_dapm_widgets = ARRAY_SIZE(sdm845_snd_widgets);
575 	card->dev = dev;
576 	card->owner = THIS_MODULE;
577 	dev_set_drvdata(dev, card);
578 	ret = qcom_snd_parse_of(card);
579 	if (ret)
580 		return ret;
581 
582 	data->card = card;
583 	snd_soc_card_set_drvdata(card, data);
584 
585 	sdm845_add_ops(card);
586 	return devm_snd_soc_register_card(dev, card);
587 }
588 
589 static const struct of_device_id sdm845_snd_device_id[]  = {
590 	{ .compatible = "qcom,sdm845-sndcard" },
591 	{ .compatible = "qcom,db845c-sndcard" },
592 	{ .compatible = "lenovo,yoga-c630-sndcard" },
593 	{},
594 };
595 MODULE_DEVICE_TABLE(of, sdm845_snd_device_id);
596 
597 static struct platform_driver sdm845_snd_driver = {
598 	.probe = sdm845_snd_platform_probe,
599 	.driver = {
600 		.name = "msm-snd-sdm845",
601 		.of_match_table = sdm845_snd_device_id,
602 	},
603 };
604 module_platform_driver(sdm845_snd_driver);
605 
606 MODULE_DESCRIPTION("sdm845 ASoC Machine Driver");
607 MODULE_LICENSE("GPL v2");
608