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
sdm845_slim_snd_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)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
sdm845_tdm_snd_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)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
sdm845_snd_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params)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
sdm845_jack_free(struct snd_jack * jack)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
sdm845_dai_init(struct snd_soc_pcm_runtime * rtd)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
sdm845_snd_startup(struct snd_pcm_substream * substream)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
sdm845_snd_shutdown(struct snd_pcm_substream * substream)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
sdm845_snd_prepare(struct snd_pcm_substream * substream)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
sdm845_snd_hw_free(struct snd_pcm_substream * substream)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
sdm845_be_hw_params_fixup(struct snd_soc_pcm_runtime * rtd,struct snd_pcm_hw_params * params)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
sdm845_add_ops(struct snd_soc_card * card)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
sdm845_snd_platform_probe(struct platform_device * pdev)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