1// SPDX-License-Identifier: GPL-2.0
2/*
3 * Copyright (c) 2018, The Linux Foundation. All rights reserved.
4 */
5
6#include <dt-bindings/sound/qcom,q6afe.h>
7#include <linux/module.h>
8#include <linux/platform_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 "sdw.h"
19#include "../codecs/rt5663.h"
20
21#define DRIVER_NAME "sdm845"
22#define DEFAULT_SAMPLE_RATE_48K 48000
23#define DEFAULT_MCLK_RATE 24576000
24#define TDM_BCLK_RATE 6144000
25#define MI2S_BCLK_RATE 1536000
26#define LEFT_SPK_TDM_TX_MASK 0x30
27#define RIGHT_SPK_TDM_TX_MASK 0xC0
28#define SPK_TDM_RX_MASK 0x03
29#define NUM_TDM_SLOTS 8
30#define SLIM_MAX_TX_PORTS 16
31#define SLIM_MAX_RX_PORTS 13
32#define WCD934X_DEFAULT_MCLK_RATE 9600000
33
34struct sdm845_snd_data {
35 struct snd_soc_jack jack;
36 bool jack_setup;
37 bool slim_port_setup;
38 bool stream_prepared[AFE_PORT_MAX];
39 struct snd_soc_card *card;
40 uint32_t pri_mi2s_clk_count;
41 uint32_t sec_mi2s_clk_count;
42 uint32_t quat_tdm_clk_count;
43};
44
45static struct snd_soc_jack_pin sdm845_jack_pins[] = {
46 {
47 .pin = "Headphone Jack",
48 .mask = SND_JACK_HEADPHONE,
49 },
50 {
51 .pin = "Headset Mic",
52 .mask = SND_JACK_MICROPHONE,
53 },
54};
55
56static unsigned int tdm_slot_offset[8] = {0, 4, 8, 12, 16, 20, 24, 28};
57
58static int sdm845_slim_snd_hw_params(struct snd_pcm_substream *substream,
59 struct snd_pcm_hw_params *params)
60{
61 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
62 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
63 struct snd_soc_dai *codec_dai;
64 u32 rx_ch[SLIM_MAX_RX_PORTS], tx_ch[SLIM_MAX_TX_PORTS];
65 u32 rx_ch_cnt = 0, tx_ch_cnt = 0;
66 int ret = 0, i;
67
68 for_each_rtd_codec_dais(rtd, i, codec_dai) {
69 ret = snd_soc_dai_get_channel_map(dai: codec_dai,
70 tx_num: &tx_ch_cnt, tx_slot: tx_ch, rx_num: &rx_ch_cnt, rx_slot: rx_ch);
71
72 if (ret != 0 && ret != -ENOTSUPP) {
73 pr_err("failed to get codec chan map, err:%d\n", ret);
74 return ret;
75 } else if (ret == -ENOTSUPP) {
76 /* Ignore unsupported */
77 continue;
78 }
79
80 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
81 ret = snd_soc_dai_set_channel_map(dai: cpu_dai, tx_num: 0, NULL,
82 rx_num: rx_ch_cnt, rx_slot: rx_ch);
83 else
84 ret = snd_soc_dai_set_channel_map(dai: cpu_dai, tx_num: tx_ch_cnt,
85 tx_slot: tx_ch, rx_num: 0, NULL);
86 if (ret != 0 && ret != -ENOTSUPP) {
87 dev_err(rtd->dev, "failed to set cpu chan map, err:%d\n", ret);
88 return ret;
89 }
90 }
91
92 return 0;
93}
94
95static int sdm845_tdm_snd_hw_params(struct snd_pcm_substream *substream,
96 struct snd_pcm_hw_params *params)
97{
98 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
99 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
100 struct snd_soc_dai *codec_dai;
101 int ret = 0, j;
102 int channels, slot_width;
103
104 switch (params_format(p: params)) {
105 case SNDRV_PCM_FORMAT_S16_LE:
106 slot_width = 16;
107 break;
108 default:
109 dev_err(rtd->dev, "%s: invalid param format 0x%x\n",
110 __func__, params_format(params));
111 return -EINVAL;
112 }
113
114 channels = params_channels(p: params);
115 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
116 ret = snd_soc_dai_set_tdm_slot(dai: cpu_dai, tx_mask: 0, rx_mask: 0x3,
117 slots: 8, slot_width);
118 if (ret < 0) {
119 dev_err(rtd->dev, "%s: failed to set tdm slot, err:%d\n",
120 __func__, ret);
121 goto end;
122 }
123
124 ret = snd_soc_dai_set_channel_map(dai: cpu_dai, tx_num: 0, NULL,
125 rx_num: channels, rx_slot: tdm_slot_offset);
126 if (ret < 0) {
127 dev_err(rtd->dev, "%s: failed to set channel map, err:%d\n",
128 __func__, ret);
129 goto end;
130 }
131 } else {
132 ret = snd_soc_dai_set_tdm_slot(dai: cpu_dai, tx_mask: 0xf, rx_mask: 0,
133 slots: 8, slot_width);
134 if (ret < 0) {
135 dev_err(rtd->dev, "%s: failed to set tdm slot, err:%d\n",
136 __func__, ret);
137 goto end;
138 }
139
140 ret = snd_soc_dai_set_channel_map(dai: cpu_dai, tx_num: channels,
141 tx_slot: tdm_slot_offset, rx_num: 0, NULL);
142 if (ret < 0) {
143 dev_err(rtd->dev, "%s: failed to set channel map, err:%d\n",
144 __func__, ret);
145 goto end;
146 }
147 }
148
149 for_each_rtd_codec_dais(rtd, j, codec_dai) {
150
151 if (!strcmp(codec_dai->component->name_prefix, "Left")) {
152 ret = snd_soc_dai_set_tdm_slot(
153 dai: codec_dai, LEFT_SPK_TDM_TX_MASK,
154 SPK_TDM_RX_MASK, NUM_TDM_SLOTS,
155 slot_width);
156 if (ret < 0) {
157 dev_err(rtd->dev,
158 "DEV0 TDM slot err:%d\n", ret);
159 return ret;
160 }
161 }
162
163 if (!strcmp(codec_dai->component->name_prefix, "Right")) {
164 ret = snd_soc_dai_set_tdm_slot(
165 dai: codec_dai, RIGHT_SPK_TDM_TX_MASK,
166 SPK_TDM_RX_MASK, NUM_TDM_SLOTS,
167 slot_width);
168 if (ret < 0) {
169 dev_err(rtd->dev,
170 "DEV1 TDM slot err:%d\n", ret);
171 return ret;
172 }
173 }
174 }
175
176end:
177 return ret;
178}
179
180static int sdm845_snd_hw_params(struct snd_pcm_substream *substream,
181 struct snd_pcm_hw_params *params)
182{
183 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
184 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
185 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
186 int ret = 0;
187
188 switch (cpu_dai->id) {
189 case PRIMARY_MI2S_RX:
190 case PRIMARY_MI2S_TX:
191 /*
192 * Use ASRC for internal clocks, as PLL rate isn't multiple
193 * of BCLK.
194 */
195 rt5663_sel_asrc_clk_src(
196 component: codec_dai->component,
197 filter_mask: RT5663_DA_STEREO_FILTER | RT5663_AD_STEREO_FILTER,
198 clk_src: RT5663_CLK_SEL_I2S1_ASRC);
199 ret = snd_soc_dai_set_sysclk(
200 dai: codec_dai, clk_id: RT5663_SCLK_S_MCLK, DEFAULT_MCLK_RATE,
201 SND_SOC_CLOCK_IN);
202 if (ret < 0)
203 dev_err(rtd->dev,
204 "snd_soc_dai_set_sysclk err = %d\n", ret);
205 break;
206 case QUATERNARY_TDM_RX_0:
207 case QUATERNARY_TDM_TX_0:
208 ret = sdm845_tdm_snd_hw_params(substream, params);
209 break;
210 case SLIMBUS_0_RX...SLIMBUS_6_TX:
211 ret = sdm845_slim_snd_hw_params(substream, params);
212 break;
213 case QUATERNARY_MI2S_RX:
214 case SECONDARY_MI2S_RX:
215 break;
216 default:
217 pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
218 break;
219 }
220 return ret;
221}
222
223static void sdm845_jack_free(struct snd_jack *jack)
224{
225 struct snd_soc_component *component = jack->private_data;
226
227 snd_soc_component_set_jack(component, NULL, NULL);
228}
229
230static int sdm845_dai_init(struct snd_soc_pcm_runtime *rtd)
231{
232 struct snd_soc_component *component;
233 struct snd_soc_card *card = rtd->card;
234 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
235 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
236 struct sdm845_snd_data *pdata = snd_soc_card_get_drvdata(card);
237 struct snd_soc_dai_link *link = rtd->dai_link;
238 struct snd_jack *jack;
239 /*
240 * Codec SLIMBUS configuration
241 * RX1, RX2, RX3, RX4, RX5, RX6, RX7, RX8, RX9, RX10, RX11, RX12, RX13
242 * TX1, TX2, TX3, TX4, TX5, TX6, TX7, TX8, TX9, TX10, TX11, TX12, TX13
243 * TX14, TX15, TX16
244 */
245 unsigned int rx_ch[SLIM_MAX_RX_PORTS] = {144, 145, 146, 147, 148, 149,
246 150, 151, 152, 153, 154, 155, 156};
247 unsigned int tx_ch[SLIM_MAX_TX_PORTS] = {128, 129, 130, 131, 132, 133,
248 134, 135, 136, 137, 138, 139,
249 140, 141, 142, 143};
250 int rval, i;
251
252
253 if (!pdata->jack_setup) {
254 rval = snd_soc_card_jack_new_pins(card, id: "Headset Jack",
255 type: SND_JACK_HEADSET |
256 SND_JACK_HEADPHONE |
257 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
258 SND_JACK_BTN_2 | SND_JACK_BTN_3,
259 jack: &pdata->jack,
260 pins: sdm845_jack_pins,
261 ARRAY_SIZE(sdm845_jack_pins));
262
263 if (rval < 0) {
264 dev_err(card->dev, "Unable to add Headphone Jack\n");
265 return rval;
266 }
267
268 jack = pdata->jack.jack;
269
270 snd_jack_set_key(jack, type: SND_JACK_BTN_0, KEY_PLAYPAUSE);
271 snd_jack_set_key(jack, type: SND_JACK_BTN_1, KEY_VOICECOMMAND);
272 snd_jack_set_key(jack, type: SND_JACK_BTN_2, KEY_VOLUMEUP);
273 snd_jack_set_key(jack, type: SND_JACK_BTN_3, KEY_VOLUMEDOWN);
274 pdata->jack_setup = true;
275 }
276
277 switch (cpu_dai->id) {
278 case PRIMARY_MI2S_RX:
279 jack = pdata->jack.jack;
280 component = codec_dai->component;
281
282 jack->private_data = component;
283 jack->private_free = sdm845_jack_free;
284 rval = snd_soc_component_set_jack(component,
285 jack: &pdata->jack, NULL);
286 if (rval != 0 && rval != -ENOTSUPP) {
287 dev_warn(card->dev, "Failed to set jack: %d\n", rval);
288 return rval;
289 }
290 break;
291 case SLIMBUS_0_RX...SLIMBUS_6_TX:
292 /* setting up wcd multiple times for slim port is redundant */
293 if (pdata->slim_port_setup || !link->no_pcm)
294 return 0;
295
296 for_each_rtd_codec_dais(rtd, i, codec_dai) {
297 rval = snd_soc_dai_set_channel_map(dai: codec_dai,
298 ARRAY_SIZE(tx_ch),
299 tx_slot: tx_ch,
300 ARRAY_SIZE(rx_ch),
301 rx_slot: rx_ch);
302 if (rval != 0 && rval != -ENOTSUPP)
303 return rval;
304
305 snd_soc_dai_set_sysclk(dai: codec_dai, clk_id: 0,
306 WCD934X_DEFAULT_MCLK_RATE,
307 dir: SNDRV_PCM_STREAM_PLAYBACK);
308
309 rval = snd_soc_component_set_jack(component: codec_dai->component,
310 jack: &pdata->jack, NULL);
311 if (rval != 0 && rval != -ENOTSUPP) {
312 dev_warn(card->dev, "Failed to set jack: %d\n", rval);
313 return rval;
314 }
315 }
316
317 pdata->slim_port_setup = true;
318
319 break;
320 default:
321 break;
322 }
323
324 return 0;
325}
326
327
328static int sdm845_snd_startup(struct snd_pcm_substream *substream)
329{
330 unsigned int fmt = SND_SOC_DAIFMT_BP_FP;
331 unsigned int codec_dai_fmt = SND_SOC_DAIFMT_BC_FC;
332 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
333 struct snd_soc_card *card = rtd->card;
334 struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card);
335 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
336 struct snd_soc_dai *codec_dai = snd_soc_rtd_to_codec(rtd, 0);
337 int j;
338 int ret;
339
340 switch (cpu_dai->id) {
341 case PRIMARY_MI2S_RX:
342 case PRIMARY_MI2S_TX:
343 codec_dai_fmt |= SND_SOC_DAIFMT_NB_NF;
344 if (++(data->pri_mi2s_clk_count) == 1) {
345 snd_soc_dai_set_sysclk(dai: cpu_dai,
346 Q6AFE_LPASS_CLK_ID_MCLK_1,
347 DEFAULT_MCLK_RATE, dir: SNDRV_PCM_STREAM_PLAYBACK);
348 snd_soc_dai_set_sysclk(dai: cpu_dai,
349 Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT,
350 MI2S_BCLK_RATE, dir: SNDRV_PCM_STREAM_PLAYBACK);
351 }
352 snd_soc_dai_set_fmt(dai: cpu_dai, fmt);
353 snd_soc_dai_set_fmt(dai: codec_dai, fmt: codec_dai_fmt);
354 break;
355
356 case SECONDARY_MI2S_RX:
357 case SECONDARY_MI2S_TX:
358 codec_dai_fmt |= SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_I2S;
359 if (++(data->sec_mi2s_clk_count) == 1) {
360 snd_soc_dai_set_sysclk(dai: cpu_dai,
361 Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT,
362 MI2S_BCLK_RATE, dir: SNDRV_PCM_STREAM_CAPTURE);
363 }
364 snd_soc_dai_set_fmt(dai: cpu_dai, fmt);
365 snd_soc_dai_set_fmt(dai: codec_dai, fmt: codec_dai_fmt);
366 break;
367 case QUATERNARY_MI2S_RX:
368 codec_dai_fmt |= SND_SOC_DAIFMT_NB_NF | SND_SOC_DAIFMT_I2S;
369 snd_soc_dai_set_sysclk(dai: cpu_dai,
370 Q6AFE_LPASS_CLK_ID_QUAD_MI2S_IBIT,
371 MI2S_BCLK_RATE, dir: SNDRV_PCM_STREAM_PLAYBACK);
372 snd_soc_dai_set_fmt(dai: cpu_dai, fmt);
373 snd_soc_dai_set_fmt(dai: codec_dai, fmt: codec_dai_fmt);
374 break;
375
376 case QUATERNARY_TDM_RX_0:
377 case QUATERNARY_TDM_TX_0:
378 if (++(data->quat_tdm_clk_count) == 1) {
379 snd_soc_dai_set_sysclk(dai: cpu_dai,
380 Q6AFE_LPASS_CLK_ID_QUAD_TDM_IBIT,
381 TDM_BCLK_RATE, dir: SNDRV_PCM_STREAM_PLAYBACK);
382 }
383
384 codec_dai_fmt |= SND_SOC_DAIFMT_IB_NF | SND_SOC_DAIFMT_DSP_B;
385
386 for_each_rtd_codec_dais(rtd, j, codec_dai) {
387
388 if (!strcmp(codec_dai->component->name_prefix,
389 "Left")) {
390 ret = snd_soc_dai_set_fmt(
391 dai: codec_dai, fmt: codec_dai_fmt);
392 if (ret < 0) {
393 dev_err(rtd->dev,
394 "Left TDM fmt err:%d\n", ret);
395 return ret;
396 }
397 }
398
399 if (!strcmp(codec_dai->component->name_prefix,
400 "Right")) {
401 ret = snd_soc_dai_set_fmt(
402 dai: codec_dai, fmt: codec_dai_fmt);
403 if (ret < 0) {
404 dev_err(rtd->dev,
405 "Right TDM slot err:%d\n", ret);
406 return ret;
407 }
408 }
409 }
410 break;
411 case SLIMBUS_0_RX...SLIMBUS_6_TX:
412 break;
413
414 default:
415 pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
416 break;
417 }
418 return qcom_snd_sdw_startup(substream);
419}
420
421static void sdm845_snd_shutdown(struct snd_pcm_substream *substream)
422{
423 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
424 struct snd_soc_card *card = rtd->card;
425 struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card);
426 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
427
428 switch (cpu_dai->id) {
429 case PRIMARY_MI2S_RX:
430 case PRIMARY_MI2S_TX:
431 if (--(data->pri_mi2s_clk_count) == 0) {
432 snd_soc_dai_set_sysclk(dai: cpu_dai,
433 Q6AFE_LPASS_CLK_ID_MCLK_1,
434 freq: 0, dir: SNDRV_PCM_STREAM_PLAYBACK);
435 snd_soc_dai_set_sysclk(dai: cpu_dai,
436 Q6AFE_LPASS_CLK_ID_PRI_MI2S_IBIT,
437 freq: 0, dir: SNDRV_PCM_STREAM_PLAYBACK);
438 }
439 break;
440
441 case SECONDARY_MI2S_RX:
442 case SECONDARY_MI2S_TX:
443 if (--(data->sec_mi2s_clk_count) == 0) {
444 snd_soc_dai_set_sysclk(dai: cpu_dai,
445 Q6AFE_LPASS_CLK_ID_SEC_MI2S_IBIT,
446 freq: 0, dir: SNDRV_PCM_STREAM_CAPTURE);
447 }
448 break;
449
450 case QUATERNARY_TDM_RX_0:
451 case QUATERNARY_TDM_TX_0:
452 if (--(data->quat_tdm_clk_count) == 0) {
453 snd_soc_dai_set_sysclk(dai: cpu_dai,
454 Q6AFE_LPASS_CLK_ID_QUAD_TDM_IBIT,
455 freq: 0, dir: SNDRV_PCM_STREAM_PLAYBACK);
456 }
457 break;
458 case SLIMBUS_0_RX...SLIMBUS_6_TX:
459 case QUATERNARY_MI2S_RX:
460 break;
461
462 default:
463 pr_err("%s: invalid dai id 0x%x\n", __func__, cpu_dai->id);
464 break;
465 }
466
467 qcom_snd_sdw_shutdown(substream);
468}
469
470static int sdm845_snd_prepare(struct snd_pcm_substream *substream)
471{
472 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
473 struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card: rtd->card);
474 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
475
476 return qcom_snd_sdw_prepare(substream, stream_prepared: &data->stream_prepared[cpu_dai->id]);
477}
478
479static int sdm845_snd_hw_free(struct snd_pcm_substream *substream)
480{
481 struct snd_soc_pcm_runtime *rtd = snd_soc_substream_to_rtd(substream);
482 struct sdm845_snd_data *data = snd_soc_card_get_drvdata(card: rtd->card);
483 struct snd_soc_dai *cpu_dai = snd_soc_rtd_to_cpu(rtd, 0);
484
485 return qcom_snd_sdw_hw_free(substream, stream_prepared: &data->stream_prepared[cpu_dai->id]);
486}
487
488static const struct snd_soc_ops sdm845_be_ops = {
489 .hw_params = sdm845_snd_hw_params,
490 .hw_free = sdm845_snd_hw_free,
491 .prepare = sdm845_snd_prepare,
492 .startup = sdm845_snd_startup,
493 .shutdown = sdm845_snd_shutdown,
494};
495
496static int sdm845_be_hw_params_fixup(struct snd_soc_pcm_runtime *rtd,
497 struct snd_pcm_hw_params *params)
498{
499 struct snd_interval *rate = hw_param_interval(params,
500 SNDRV_PCM_HW_PARAM_RATE);
501 struct snd_interval *channels = hw_param_interval(params,
502 SNDRV_PCM_HW_PARAM_CHANNELS);
503 struct snd_mask *fmt = hw_param_mask(params, SNDRV_PCM_HW_PARAM_FORMAT);
504
505 rate->min = rate->max = DEFAULT_SAMPLE_RATE_48K;
506 channels->min = channels->max = 2;
507 snd_mask_set_format(mask: fmt, SNDRV_PCM_FORMAT_S16_LE);
508
509 return 0;
510}
511
512static const struct snd_soc_dapm_widget sdm845_snd_widgets[] = {
513 SND_SOC_DAPM_HP("Headphone Jack", NULL),
514 SND_SOC_DAPM_MIC("Headset Mic", NULL),
515 SND_SOC_DAPM_SPK("Left Spk", NULL),
516 SND_SOC_DAPM_SPK("Right Spk", NULL),
517 SND_SOC_DAPM_MIC("Int Mic", NULL),
518};
519
520static const struct snd_kcontrol_new sdm845_snd_controls[] = {
521 SOC_DAPM_PIN_SWITCH("Headphone Jack"),
522 SOC_DAPM_PIN_SWITCH("Headset Mic"),
523};
524
525static void sdm845_add_ops(struct snd_soc_card *card)
526{
527 struct snd_soc_dai_link *link;
528 int i;
529
530 for_each_card_prelinks(card, i, link) {
531 if (link->no_pcm == 1) {
532 link->ops = &sdm845_be_ops;
533 link->be_hw_params_fixup = sdm845_be_hw_params_fixup;
534 }
535 link->init = sdm845_dai_init;
536 }
537}
538
539static int sdm845_snd_platform_probe(struct platform_device *pdev)
540{
541 struct snd_soc_card *card;
542 struct sdm845_snd_data *data;
543 struct device *dev = &pdev->dev;
544 int ret;
545
546 card = devm_kzalloc(dev, size: sizeof(*card), GFP_KERNEL);
547 if (!card)
548 return -ENOMEM;
549
550 /* Allocate the private data */
551 data = devm_kzalloc(dev, size: sizeof(*data), GFP_KERNEL);
552 if (!data)
553 return -ENOMEM;
554
555 card->driver_name = DRIVER_NAME;
556 card->dapm_widgets = sdm845_snd_widgets;
557 card->num_dapm_widgets = ARRAY_SIZE(sdm845_snd_widgets);
558 card->controls = sdm845_snd_controls;
559 card->num_controls = ARRAY_SIZE(sdm845_snd_controls);
560 card->dev = dev;
561 card->owner = THIS_MODULE;
562 dev_set_drvdata(dev, data: card);
563 ret = qcom_snd_parse_of(card);
564 if (ret)
565 return ret;
566
567 data->card = card;
568 snd_soc_card_set_drvdata(card, data);
569
570 sdm845_add_ops(card);
571 return devm_snd_soc_register_card(dev, card);
572}
573
574static const struct of_device_id sdm845_snd_device_id[] = {
575 { .compatible = "qcom,sdm845-sndcard" },
576 /* Do not grow the list for compatible devices */
577 { .compatible = "qcom,db845c-sndcard" },
578 { .compatible = "lenovo,yoga-c630-sndcard" },
579 {},
580};
581MODULE_DEVICE_TABLE(of, sdm845_snd_device_id);
582
583static struct platform_driver sdm845_snd_driver = {
584 .probe = sdm845_snd_platform_probe,
585 .driver = {
586 .name = "msm-snd-sdm845",
587 .of_match_table = sdm845_snd_device_id,
588 },
589};
590module_platform_driver(sdm845_snd_driver);
591
592MODULE_DESCRIPTION("sdm845 ASoC Machine Driver");
593MODULE_LICENSE("GPL");
594

source code of linux/sound/soc/qcom/sdm845.c