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treewide: remove redundant IS_ERR() before error code check
[linux/fpc-iii.git] / sound / soc / codecs / rt700.c
blobff68f0e4f629d63cb31259b9604bdda61c1ab581
1 // SPDX-License-Identifier: GPL-2.0
2 //
3 // rt700.c -- rt700 ALSA SoC audio driver
4 //
5 // Copyright(c) 2019 Realtek Semiconductor Corp.
6 //
7 //
8
9 #include <linux/module.h>
10 #include <linux/moduleparam.h>
11 #include <linux/kernel.h>
12 #include <linux/init.h>
13 #include <linux/delay.h>
14 #include <linux/pm_runtime.h>
15 #include <linux/pm.h>
16 #include <linux/soundwire/sdw.h>
17 #include <linux/regmap.h>
18 #include <linux/slab.h>
19 #include <sound/core.h>
20 #include <sound/pcm.h>
21 #include <sound/pcm_params.h>
22 #include <sound/soc.h>
23 #include <sound/soc-dapm.h>
24 #include <sound/initval.h>
25 #include <sound/tlv.h>
26 #include <sound/hda_verbs.h>
27 #include <sound/jack.h>
28
29 #include "rt700.h"
30
31 static int rt700_index_write(struct regmap *regmap,
32 unsigned int reg, unsigned int value)
33 {
34 int ret;
35 unsigned int addr = (RT700_PRIV_INDEX_W_H << 8) | reg;
36
37 ret = regmap_write(regmap, addr, value);
38 if (ret < 0)
39 pr_err("Failed to set private value: %06x <= %04x ret=%d\n",
40 addr, value, ret);
41
42 return ret;
43 }
44
45 static int rt700_index_read(struct regmap *regmap,
46 unsigned int reg, unsigned int *value)
47 {
48 int ret;
49 unsigned int addr = (RT700_PRIV_INDEX_W_H << 8) | reg;
50
51 *value = 0;
52 ret = regmap_read(regmap, addr, value);
53 if (ret < 0)
54 pr_err("Failed to get private value: %06x => %04x ret=%d\n",
55 addr, *value, ret);
56
57 return ret;
58 }
59
60 static unsigned int rt700_button_detect(struct rt700_priv *rt700)
61 {
62 unsigned int btn_type = 0, val80, val81;
63 int ret;
64
65 ret = rt700_index_read(rt700->regmap, RT700_IRQ_FLAG_TABLE1, &val80);
66 if (ret < 0)
67 goto read_error;
68 ret = rt700_index_read(rt700->regmap, RT700_IRQ_FLAG_TABLE2, &val81);
69 if (ret < 0)
70 goto read_error;
71
72 val80 &= 0x0381;
73 val81 &= 0xff00;
74
75 switch (val80) {
76 case 0x0200:
77 case 0x0100:
78 case 0x0080:
79 btn_type |= SND_JACK_BTN_0;
80 break;
81 case 0x0001:
82 btn_type |= SND_JACK_BTN_3;
83 break;
84 }
85 switch (val81) {
86 case 0x8000:
87 case 0x4000:
88 case 0x2000:
89 btn_type |= SND_JACK_BTN_1;
90 break;
91 case 0x1000:
92 case 0x0800:
93 case 0x0400:
94 btn_type |= SND_JACK_BTN_2;
95 break;
96 case 0x0200:
97 case 0x0100:
98 btn_type |= SND_JACK_BTN_3;
99 break;
100 }
101 read_error:
102 return btn_type;
103 }
104
105 static int rt700_headset_detect(struct rt700_priv *rt700)
106 {
107 unsigned int buf, loop = 0;
108 int ret;
109 unsigned int jack_status = 0, reg;
110
111 ret = rt700_index_read(rt700->regmap,
112 RT700_COMBO_JACK_AUTO_CTL2, &buf);
113 if (ret < 0)
114 goto io_error;
115
116 while (loop < 500 &&
117 (buf & RT700_COMBOJACK_AUTO_DET_STATUS) == 0) {
118 loop++;
119
120 usleep_range(9000, 10000);
121 ret = rt700_index_read(rt700->regmap,
122 RT700_COMBO_JACK_AUTO_CTL2, &buf);
123 if (ret < 0)
124 goto io_error;
125
126 reg = RT700_VERB_GET_PIN_SENSE | RT700_HP_OUT;
127 ret = regmap_read(rt700->regmap, reg, &jack_status);
128 if ((jack_status & (1 << 31)) == 0)
129 goto remove_error;
130 }
131
132 if (loop >= 500)
133 goto to_error;
134
135 if (buf & RT700_COMBOJACK_AUTO_DET_TRS)
136 rt700->jack_type = SND_JACK_HEADPHONE;
137 else if ((buf & RT700_COMBOJACK_AUTO_DET_CTIA) ||
138 (buf & RT700_COMBOJACK_AUTO_DET_OMTP))
139 rt700->jack_type = SND_JACK_HEADSET;
140
141 return 0;
142
143 to_error:
144 ret = -ETIMEDOUT;
145 pr_err_ratelimited("Time-out error in %s\n", __func__);
146 return ret;
147 io_error:
148 pr_err_ratelimited("IO error in %s, ret %d\n", __func__, ret);
149 return ret;
150 remove_error:
151 pr_err_ratelimited("Jack removal in %s\n", __func__);
152 return -ENODEV;
153 }
154
155 static void rt700_jack_detect_handler(struct work_struct *work)
156 {
157 struct rt700_priv *rt700 =
158 container_of(work, struct rt700_priv, jack_detect_work.work);
159 int btn_type = 0, ret;
160 unsigned int jack_status = 0, reg;
161
162 if (!rt700->hs_jack)
163 return;
164
165 if (!rt700->component->card->instantiated)
166 return;
167
168 reg = RT700_VERB_GET_PIN_SENSE | RT700_HP_OUT;
169 ret = regmap_read(rt700->regmap, reg, &jack_status);
170 if (ret < 0)
171 goto io_error;
172
173 /* pin attached */
174 if (jack_status & (1 << 31)) {
175 /* jack in */
176 if (rt700->jack_type == 0) {
177 ret = rt700_headset_detect(rt700);
178 if (ret < 0)
179 return;
180 if (rt700->jack_type == SND_JACK_HEADSET)
181 btn_type = rt700_button_detect(rt700);
182 } else if (rt700->jack_type == SND_JACK_HEADSET) {
183 /* jack is already in, report button event */
184 btn_type = rt700_button_detect(rt700);
185 }
186 } else {
187 /* jack out */
188 rt700->jack_type = 0;
189 }
190
191 dev_dbg(&rt700->slave->dev,
192 "in %s, jack_type=0x%x\n", __func__, rt700->jack_type);
193 dev_dbg(&rt700->slave->dev,
194 "in %s, btn_type=0x%x\n", __func__, btn_type);
195
196 snd_soc_jack_report(rt700->hs_jack, rt700->jack_type | btn_type,
197 SND_JACK_HEADSET |
198 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
199 SND_JACK_BTN_2 | SND_JACK_BTN_3);
200
201 if (btn_type) {
202 /* button released */
203 snd_soc_jack_report(rt700->hs_jack, rt700->jack_type,
204 SND_JACK_HEADSET |
205 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
206 SND_JACK_BTN_2 | SND_JACK_BTN_3);
207
208 mod_delayed_work(system_power_efficient_wq,
209 &rt700->jack_btn_check_work, msecs_to_jiffies(200));
210 }
211
212 return;
213
214 io_error:
215 pr_err_ratelimited("IO error in %s, ret %d\n", __func__, ret);
216 }
217
218 static void rt700_btn_check_handler(struct work_struct *work)
219 {
220 struct rt700_priv *rt700 = container_of(work, struct rt700_priv,
221 jack_btn_check_work.work);
222 int btn_type = 0, ret;
223 unsigned int jack_status = 0, reg;
224
225 reg = RT700_VERB_GET_PIN_SENSE | RT700_HP_OUT;
226 ret = regmap_read(rt700->regmap, reg, &jack_status);
227 if (ret < 0)
228 goto io_error;
229
230 /* pin attached */
231 if (jack_status & (1 << 31)) {
232 if (rt700->jack_type == SND_JACK_HEADSET) {
233 /* jack is already in, report button event */
234 btn_type = rt700_button_detect(rt700);
235 }
236 } else {
237 rt700->jack_type = 0;
238 }
239
240 /* cbj comparator */
241 ret = rt700_index_read(rt700->regmap, RT700_COMBO_JACK_AUTO_CTL2, &reg);
242 if (ret < 0)
243 goto io_error;
244
245 if ((reg & 0xf0) == 0xf0)
246 btn_type = 0;
247
248 dev_dbg(&rt700->slave->dev,
249 "%s, btn_type=0x%x\n", __func__, btn_type);
250 snd_soc_jack_report(rt700->hs_jack, rt700->jack_type | btn_type,
251 SND_JACK_HEADSET |
252 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
253 SND_JACK_BTN_2 | SND_JACK_BTN_3);
254
255 if (btn_type) {
256 /* button released */
257 snd_soc_jack_report(rt700->hs_jack, rt700->jack_type,
258 SND_JACK_HEADSET |
259 SND_JACK_BTN_0 | SND_JACK_BTN_1 |
260 SND_JACK_BTN_2 | SND_JACK_BTN_3);
261
262 mod_delayed_work(system_power_efficient_wq,
263 &rt700->jack_btn_check_work, msecs_to_jiffies(200));
264 }
265
266 return;
267
268 io_error:
269 pr_err_ratelimited("IO error in %s, ret %d\n", __func__, ret);
270 }
271
272 static void rt700_jack_init(struct rt700_priv *rt700)
273 {
274 struct snd_soc_dapm_context *dapm =
275 snd_soc_component_get_dapm(rt700->component);
276
277 /* power on */
278 if (dapm->bias_level <= SND_SOC_BIAS_STANDBY)
279 regmap_write(rt700->regmap,
280 RT700_SET_AUDIO_POWER_STATE, AC_PWRST_D0);
281
282 if (rt700->hs_jack) {
283 /* Enable Jack Detection */
284 regmap_write(rt700->regmap,
285 RT700_SET_MIC2_UNSOLICITED_ENABLE, 0x82);
286 regmap_write(rt700->regmap,
287 RT700_SET_HP_UNSOLICITED_ENABLE, 0x81);
288 regmap_write(rt700->regmap,
289 RT700_SET_INLINE_UNSOLICITED_ENABLE, 0x83);
290 rt700_index_write(rt700->regmap, 0x10, 0x2420);
291 rt700_index_write(rt700->regmap, 0x19, 0x2e11);
292
293 dev_dbg(&rt700->slave->dev, "in %s enable\n", __func__);
294
295 mod_delayed_work(system_power_efficient_wq,
296 &rt700->jack_detect_work, msecs_to_jiffies(250));
297 } else {
298 regmap_write(rt700->regmap,
299 RT700_SET_MIC2_UNSOLICITED_ENABLE, 0x00);
300 regmap_write(rt700->regmap,
301 RT700_SET_HP_UNSOLICITED_ENABLE, 0x00);
302 regmap_write(rt700->regmap,
303 RT700_SET_INLINE_UNSOLICITED_ENABLE, 0x00);
304
305 dev_dbg(&rt700->slave->dev, "in %s disable\n", __func__);
306 }
307
308 /* power off */
309 if (dapm->bias_level <= SND_SOC_BIAS_STANDBY)
310 regmap_write(rt700->regmap,
311 RT700_SET_AUDIO_POWER_STATE, AC_PWRST_D3);
312 }
313
314 static int rt700_set_jack_detect(struct snd_soc_component *component,
315 struct snd_soc_jack *hs_jack, void *data)
316 {
317 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component);
318
319 rt700->hs_jack = hs_jack;
320
321 if (!rt700->hw_init) {
322 dev_dbg(&rt700->slave->dev,
323 "%s hw_init not ready yet\n", __func__);
324 return 0;
325 }
326
327 rt700_jack_init(rt700);
328
329 return 0;
330 }
331
332 static void rt700_get_gain(struct rt700_priv *rt700, unsigned int addr_h,
333 unsigned int addr_l, unsigned int val_h,
334 unsigned int *r_val, unsigned int *l_val)
335 {
336 /* R Channel */
337 *r_val = (val_h << 8);
338 regmap_read(rt700->regmap, addr_l, r_val);
339
340 /* L Channel */
341 val_h |= 0x20;
342 *l_val = (val_h << 8);
343 regmap_read(rt700->regmap, addr_h, l_val);
344 }
345
346 /* For Verb-Set Amplifier Gain (Verb ID = 3h) */
347 static int rt700_set_amp_gain_put(struct snd_kcontrol *kcontrol,
348 struct snd_ctl_elem_value *ucontrol)
349 {
350 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
351 struct snd_soc_dapm_context *dapm =
352 snd_soc_component_get_dapm(component);
353 struct soc_mixer_control *mc =
354 (struct soc_mixer_control *)kcontrol->private_value;
355 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component);
356 unsigned int addr_h, addr_l, val_h, val_ll, val_lr;
357 unsigned int read_ll, read_rl;
358 int i;
359
360 /* Can't use update bit function, so read the original value first */
361 addr_h = mc->reg;
362 addr_l = mc->rreg;
363 if (mc->shift == RT700_DIR_OUT_SFT) /* output */
364 val_h = 0x80;
365 else /* input */
366 val_h = 0x0;
367
368 rt700_get_gain(rt700, addr_h, addr_l, val_h, &read_rl, &read_ll);
369
370 /* L Channel */
371 if (mc->invert) {
372 /* for mute */
373 val_ll = (mc->max - ucontrol->value.integer.value[0]) << 7;
374 /* keep gain */
375 read_ll = read_ll & 0x7f;
376 val_ll |= read_ll;
377 } else {
378 /* for gain */
379 val_ll = ((ucontrol->value.integer.value[0]) & 0x7f);
380 if (val_ll > mc->max)
381 val_ll = mc->max;
382 /* keep mute status */
383 read_ll = read_ll & 0x80;
384 val_ll |= read_ll;
385 }
386
387 if (dapm->bias_level <= SND_SOC_BIAS_STANDBY)
388 regmap_write(rt700->regmap,
389 RT700_SET_AUDIO_POWER_STATE, AC_PWRST_D0);
390
391 /* R Channel */
392 if (mc->invert) {
393 /* for mute */
394 val_lr = (mc->max - ucontrol->value.integer.value[1]) << 7;
395 /* keep gain */
396 read_rl = read_rl & 0x7f;
397 val_lr |= read_rl;
398 } else {
399 /* for gain */
400 val_lr = ((ucontrol->value.integer.value[1]) & 0x7f);
401 if (val_lr > mc->max)
402 val_lr = mc->max;
403 /* keep mute status */
404 read_rl = read_rl & 0x80;
405 val_lr |= read_rl;
406 }
407
408 for (i = 0; i < 3; i++) { /* retry 3 times at most */
409 if (val_ll == val_lr) {
410 /* Set both L/R channels at the same time */
411 val_h = (1 << mc->shift) | (3 << 4);
412 regmap_write(rt700->regmap,
413 addr_h, (val_h << 8 | val_ll));
414 regmap_write(rt700->regmap,
415 addr_l, (val_h << 8 | val_ll));
416 } else {
417 /* Lch*/
418 val_h = (1 << mc->shift) | (1 << 5);
419 regmap_write(rt700->regmap,
420 addr_h, (val_h << 8 | val_ll));
421
422 /* Rch */
423 val_h = (1 << mc->shift) | (1 << 4);
424 regmap_write(rt700->regmap,
425 addr_l, (val_h << 8 | val_lr));
426 }
427 /* check result */
428 if (mc->shift == RT700_DIR_OUT_SFT) /* output */
429 val_h = 0x80;
430 else /* input */
431 val_h = 0x0;
432
433 rt700_get_gain(rt700, addr_h, addr_l, val_h,
434 &read_rl, &read_ll);
435 if (read_rl == val_lr && read_ll == val_ll)
436 break;
437 }
438
439 if (dapm->bias_level <= SND_SOC_BIAS_STANDBY)
440 regmap_write(rt700->regmap,
441 RT700_SET_AUDIO_POWER_STATE, AC_PWRST_D3);
442 return 0;
443 }
444
445 static int rt700_set_amp_gain_get(struct snd_kcontrol *kcontrol,
446 struct snd_ctl_elem_value *ucontrol)
447 {
448 struct snd_soc_component *component = snd_kcontrol_chip(kcontrol);
449 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component);
450 struct soc_mixer_control *mc =
451 (struct soc_mixer_control *)kcontrol->private_value;
452 unsigned int addr_h, addr_l, val_h;
453 unsigned int read_ll, read_rl;
454
455 addr_h = mc->reg;
456 addr_l = mc->rreg;
457 if (mc->shift == RT700_DIR_OUT_SFT) /* output */
458 val_h = 0x80;
459 else /* input */
460 val_h = 0x0;
461
462 rt700_get_gain(rt700, addr_h, addr_l, val_h, &read_rl, &read_ll);
463
464 if (mc->invert) {
465 /* for mute status */
466 read_ll = !((read_ll & 0x80) >> RT700_MUTE_SFT);
467 read_rl = !((read_rl & 0x80) >> RT700_MUTE_SFT);
468 } else {
469 /* for gain */
470 read_ll = read_ll & 0x7f;
471 read_rl = read_rl & 0x7f;
472 }
473 ucontrol->value.integer.value[0] = read_ll;
474 ucontrol->value.integer.value[1] = read_rl;
475
476 return 0;
477 }
478
479 static const DECLARE_TLV_DB_SCALE(out_vol_tlv, -6525, 75, 0);
480 static const DECLARE_TLV_DB_SCALE(in_vol_tlv, -1725, 75, 0);
481 static const DECLARE_TLV_DB_SCALE(mic_vol_tlv, 0, 1000, 0);
482
483 static const struct snd_kcontrol_new rt700_snd_controls[] = {
484 SOC_DOUBLE_R_EXT_TLV("DAC Front Playback Volume",
485 RT700_SET_GAIN_DAC1_H, RT700_SET_GAIN_DAC1_L,
486 RT700_DIR_OUT_SFT, 0x57, 0,
487 rt700_set_amp_gain_get, rt700_set_amp_gain_put, out_vol_tlv),
488 SOC_DOUBLE_R_EXT("ADC 08 Capture Switch",
489 RT700_SET_GAIN_ADC2_H, RT700_SET_GAIN_ADC2_L,
490 RT700_DIR_IN_SFT, 1, 1,
491 rt700_set_amp_gain_get, rt700_set_amp_gain_put),
492 SOC_DOUBLE_R_EXT("ADC 09 Capture Switch",
493 RT700_SET_GAIN_ADC1_H, RT700_SET_GAIN_ADC1_L,
494 RT700_DIR_IN_SFT, 1, 1,
495 rt700_set_amp_gain_get, rt700_set_amp_gain_put),
496 SOC_DOUBLE_R_EXT_TLV("ADC 08 Capture Volume",
497 RT700_SET_GAIN_ADC2_H, RT700_SET_GAIN_ADC2_L,
498 RT700_DIR_IN_SFT, 0x3f, 0,
499 rt700_set_amp_gain_get, rt700_set_amp_gain_put, in_vol_tlv),
500 SOC_DOUBLE_R_EXT_TLV("ADC 09 Capture Volume",
501 RT700_SET_GAIN_ADC1_H, RT700_SET_GAIN_ADC1_L,
502 RT700_DIR_IN_SFT, 0x3f, 0,
503 rt700_set_amp_gain_get, rt700_set_amp_gain_put, in_vol_tlv),
504 SOC_DOUBLE_R_EXT_TLV("AMIC Volume",
505 RT700_SET_GAIN_AMIC_H, RT700_SET_GAIN_AMIC_L,
506 RT700_DIR_IN_SFT, 3, 0,
507 rt700_set_amp_gain_get, rt700_set_amp_gain_put, mic_vol_tlv),
508 };
509
510 static int rt700_mux_get(struct snd_kcontrol *kcontrol,
511 struct snd_ctl_elem_value *ucontrol)
512 {
513 struct snd_soc_component *component =
514 snd_soc_dapm_kcontrol_component(kcontrol);
515 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component);
516 unsigned int reg, val = 0, nid;
517 int ret;
518
519 if (strstr(ucontrol->id.name, "HPO Mux"))
520 nid = RT700_HP_OUT;
521 else if (strstr(ucontrol->id.name, "ADC 22 Mux"))
522 nid = RT700_MIXER_IN1;
523 else if (strstr(ucontrol->id.name, "ADC 23 Mux"))
524 nid = RT700_MIXER_IN2;
525 else
526 return -EINVAL;
527
528 /* vid = 0xf01 */
529 reg = RT700_VERB_SET_CONNECT_SEL | nid;
530 ret = regmap_read(rt700->regmap, reg, &val);
531 if (ret < 0)
532 return ret;
533
534 ucontrol->value.enumerated.item[0] = val;
535
536 return 0;
537 }
538
539 static int rt700_mux_put(struct snd_kcontrol *kcontrol,
540 struct snd_ctl_elem_value *ucontrol)
541 {
542 struct snd_soc_component *component =
543 snd_soc_dapm_kcontrol_component(kcontrol);
544 struct snd_soc_dapm_context *dapm =
545 snd_soc_dapm_kcontrol_dapm(kcontrol);
546 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component);
547 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
548 unsigned int *item = ucontrol->value.enumerated.item;
549 unsigned int val, val2 = 0, change, reg, nid;
550 int ret;
551
552 if (item[0] >= e->items)
553 return -EINVAL;
554
555 if (strstr(ucontrol->id.name, "HPO Mux"))
556 nid = RT700_HP_OUT;
557 else if (strstr(ucontrol->id.name, "ADC 22 Mux"))
558 nid = RT700_MIXER_IN1;
559 else if (strstr(ucontrol->id.name, "ADC 23 Mux"))
560 nid = RT700_MIXER_IN2;
561 else
562 return -EINVAL;
563
564 /* Verb ID = 0x701h */
565 val = snd_soc_enum_item_to_val(e, item[0]) << e->shift_l;
566
567 reg = RT700_VERB_SET_CONNECT_SEL | nid;
568 ret = regmap_read(rt700->regmap, reg, &val2);
569 if (ret < 0)
570 return ret;
571
572 if (val == val2)
573 change = 0;
574 else
575 change = 1;
576
577 if (change) {
578 reg = RT700_VERB_SET_CONNECT_SEL | nid;
579 regmap_write(rt700->regmap, reg, val);
580 }
581
582 snd_soc_dapm_mux_update_power(dapm, kcontrol,
583 item[0], e, NULL);
584
585 return change;
586 }
587
588 static const char * const adc_mux_text[] = {
589 "MIC2",
590 "LINE1",
591 "LINE2",
592 "DMIC",
593 };
594
595 static SOC_ENUM_SINGLE_DECL(
596 rt700_adc22_enum, SND_SOC_NOPM, 0, adc_mux_text);
597
598 static SOC_ENUM_SINGLE_DECL(
599 rt700_adc23_enum, SND_SOC_NOPM, 0, adc_mux_text);
600
601 static const struct snd_kcontrol_new rt700_adc22_mux =
602 SOC_DAPM_ENUM_EXT("ADC 22 Mux", rt700_adc22_enum,
603 rt700_mux_get, rt700_mux_put);
604
605 static const struct snd_kcontrol_new rt700_adc23_mux =
606 SOC_DAPM_ENUM_EXT("ADC 23 Mux", rt700_adc23_enum,
607 rt700_mux_get, rt700_mux_put);
608
609 static const char * const out_mux_text[] = {
610 "Front",
611 "Surround",
612 };
613
614 static SOC_ENUM_SINGLE_DECL(
615 rt700_hp_enum, SND_SOC_NOPM, 0, out_mux_text);
616
617 static const struct snd_kcontrol_new rt700_hp_mux =
618 SOC_DAPM_ENUM_EXT("HP Mux", rt700_hp_enum,
619 rt700_mux_get, rt700_mux_put);
620
621 static int rt700_dac_front_event(struct snd_soc_dapm_widget *w,
622 struct snd_kcontrol *kcontrol, int event)
623 {
624 struct snd_soc_component *component =
625 snd_soc_dapm_to_component(w->dapm);
626 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component);
627
628 switch (event) {
629 case SND_SOC_DAPM_POST_PMU:
630 regmap_write(rt700->regmap,
631 RT700_SET_STREAMID_DAC1, 0x10);
632 break;
633 case SND_SOC_DAPM_PRE_PMD:
634 regmap_write(rt700->regmap,
635 RT700_SET_STREAMID_DAC1, 0x00);
636 break;
637 }
638 return 0;
639 }
640
641 static int rt700_dac_surround_event(struct snd_soc_dapm_widget *w,
642 struct snd_kcontrol *kcontrol, int event)
643 {
644 struct snd_soc_component *component =
645 snd_soc_dapm_to_component(w->dapm);
646 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component);
647
648 switch (event) {
649 case SND_SOC_DAPM_POST_PMU:
650 regmap_write(rt700->regmap,
651 RT700_SET_STREAMID_DAC2, 0x10);
652 break;
653 case SND_SOC_DAPM_PRE_PMD:
654 regmap_write(rt700->regmap,
655 RT700_SET_STREAMID_DAC2, 0x00);
656 break;
657 }
658 return 0;
659 }
660
661 static int rt700_adc_09_event(struct snd_soc_dapm_widget *w,
662 struct snd_kcontrol *kcontrol, int event)
663 {
664 struct snd_soc_component *component =
665 snd_soc_dapm_to_component(w->dapm);
666 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component);
667
668 switch (event) {
669 case SND_SOC_DAPM_POST_PMU:
670 regmap_write(rt700->regmap,
671 RT700_SET_STREAMID_ADC1, 0x10);
672 break;
673 case SND_SOC_DAPM_PRE_PMD:
674 regmap_write(rt700->regmap,
675 RT700_SET_STREAMID_ADC1, 0x00);
676 break;
677 }
678 return 0;
679 }
680
681 static int rt700_adc_08_event(struct snd_soc_dapm_widget *w,
682 struct snd_kcontrol *kcontrol, int event)
683 {
684 struct snd_soc_component *component =
685 snd_soc_dapm_to_component(w->dapm);
686 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component);
687
688 switch (event) {
689 case SND_SOC_DAPM_POST_PMU:
690 regmap_write(rt700->regmap,
691 RT700_SET_STREAMID_ADC2, 0x10);
692 break;
693 case SND_SOC_DAPM_PRE_PMD:
694 regmap_write(rt700->regmap,
695 RT700_SET_STREAMID_ADC2, 0x00);
696 break;
697 }
698 return 0;
699 }
700
701 static int rt700_hpo_mux_event(struct snd_soc_dapm_widget *w,
702 struct snd_kcontrol *kcontrol, int event)
703 {
704 struct snd_soc_component *component =
705 snd_soc_dapm_to_component(w->dapm);
706 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component);
707 unsigned int val_h = (1 << RT700_DIR_OUT_SFT) | (0x3 << 4);
708 unsigned int val_l;
709
710 switch (event) {
711 case SND_SOC_DAPM_POST_PMU:
712 val_l = 0x00;
713 regmap_write(rt700->regmap,
714 RT700_SET_GAIN_HP_H, (val_h << 8 | val_l));
715 break;
716 case SND_SOC_DAPM_PRE_PMD:
717 val_l = (1 << RT700_MUTE_SFT);
718 regmap_write(rt700->regmap,
719 RT700_SET_GAIN_HP_H, (val_h << 8 | val_l));
720 usleep_range(50000, 55000);
721 break;
722 }
723 return 0;
724 }
725
726 static int rt700_spk_pga_event(struct snd_soc_dapm_widget *w,
727 struct snd_kcontrol *kcontrol, int event)
728 {
729 struct snd_soc_component *component =
730 snd_soc_dapm_to_component(w->dapm);
731 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component);
732 unsigned int val_h = (1 << RT700_DIR_OUT_SFT) | (0x3 << 4);
733 unsigned int val_l;
734
735 switch (event) {
736 case SND_SOC_DAPM_POST_PMU:
737 val_l = 0x00;
738 regmap_write(rt700->regmap,
739 RT700_SET_GAIN_SPK_H, (val_h << 8 | val_l));
740 break;
741 case SND_SOC_DAPM_PRE_PMD:
742 val_l = (1 << RT700_MUTE_SFT);
743 regmap_write(rt700->regmap,
744 RT700_SET_GAIN_SPK_H, (val_h << 8 | val_l));
745 break;
746 }
747 return 0;
748 }
749
750 static const struct snd_soc_dapm_widget rt700_dapm_widgets[] = {
751 SND_SOC_DAPM_OUTPUT("HP"),
752 SND_SOC_DAPM_OUTPUT("SPK"),
753 SND_SOC_DAPM_INPUT("DMIC1"),
754 SND_SOC_DAPM_INPUT("DMIC2"),
755 SND_SOC_DAPM_INPUT("MIC2"),
756 SND_SOC_DAPM_INPUT("LINE1"),
757 SND_SOC_DAPM_INPUT("LINE2"),
758 SND_SOC_DAPM_DAC_E("DAC Front", NULL, SND_SOC_NOPM, 0, 0,
759 rt700_dac_front_event,
760 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
761 SND_SOC_DAPM_DAC_E("DAC Surround", NULL, SND_SOC_NOPM, 0, 0,
762 rt700_dac_surround_event,
763 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
764 SND_SOC_DAPM_MUX_E("HPO Mux", SND_SOC_NOPM, 0, 0, &rt700_hp_mux,
765 rt700_hpo_mux_event,
766 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
767 SND_SOC_DAPM_PGA_E("SPK PGA", SND_SOC_NOPM, 0, 0, NULL, 0,
768 rt700_spk_pga_event,
769 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
770 SND_SOC_DAPM_ADC_E("ADC 09", NULL, SND_SOC_NOPM, 0, 0,
771 rt700_adc_09_event,
772 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
773 SND_SOC_DAPM_ADC_E("ADC 08", NULL, SND_SOC_NOPM, 0, 0,
774 rt700_adc_08_event,
775 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
776 SND_SOC_DAPM_MUX("ADC 22 Mux", SND_SOC_NOPM, 0, 0,
777 &rt700_adc22_mux),
778 SND_SOC_DAPM_MUX("ADC 23 Mux", SND_SOC_NOPM, 0, 0,
779 &rt700_adc23_mux),
780 SND_SOC_DAPM_AIF_IN("DP1RX", "DP1 Playback", 0, SND_SOC_NOPM, 0, 0),
781 SND_SOC_DAPM_AIF_IN("DP3RX", "DP3 Playback", 0, SND_SOC_NOPM, 0, 0),
782 SND_SOC_DAPM_AIF_OUT("DP2TX", "DP2 Capture", 0, SND_SOC_NOPM, 0, 0),
783 SND_SOC_DAPM_AIF_OUT("DP4TX", "DP4 Capture", 0, SND_SOC_NOPM, 0, 0),
784 };
785
786 static const struct snd_soc_dapm_route rt700_audio_map[] = {
787 {"DAC Front", NULL, "DP1RX"},
788 {"DAC Surround", NULL, "DP3RX"},
789 {"DP2TX", NULL, "ADC 09"},
790 {"DP4TX", NULL, "ADC 08"},
791 {"ADC 09", NULL, "ADC 22 Mux"},
792 {"ADC 08", NULL, "ADC 23 Mux"},
793 {"ADC 22 Mux", "DMIC", "DMIC1"},
794 {"ADC 22 Mux", "LINE1", "LINE1"},
795 {"ADC 22 Mux", "LINE2", "LINE2"},
796 {"ADC 22 Mux", "MIC2", "MIC2"},
797 {"ADC 23 Mux", "DMIC", "DMIC2"},
798 {"ADC 23 Mux", "LINE1", "LINE1"},
799 {"ADC 23 Mux", "LINE2", "LINE2"},
800 {"ADC 23 Mux", "MIC2", "MIC2"},
801 {"HPO Mux", "Front", "DAC Front"},
802 {"HPO Mux", "Surround", "DAC Surround"},
803 {"HP", NULL, "HPO Mux"},
804 {"SPK PGA", NULL, "DAC Front"},
805 {"SPK", NULL, "SPK PGA"},
806 };
807
808 static int rt700_probe(struct snd_soc_component *component)
809 {
810 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component);
811
812 rt700->component = component;
813
814 return 0;
815 }
816
817 static int rt700_set_bias_level(struct snd_soc_component *component,
818 enum snd_soc_bias_level level)
819 {
820 struct snd_soc_dapm_context *dapm =
821 snd_soc_component_get_dapm(component);
822 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component);
823
824 switch (level) {
825 case SND_SOC_BIAS_PREPARE:
826 if (dapm->bias_level == SND_SOC_BIAS_STANDBY) {
827 regmap_write(rt700->regmap,
828 RT700_SET_AUDIO_POWER_STATE,
829 AC_PWRST_D0);
830 }
831 break;
832
833 case SND_SOC_BIAS_STANDBY:
834 regmap_write(rt700->regmap,
835 RT700_SET_AUDIO_POWER_STATE,
836 AC_PWRST_D3);
837 break;
838
839 default:
840 break;
841 }
842 dapm->bias_level = level;
843 return 0;
844 }
845
846 static const struct snd_soc_component_driver soc_codec_dev_rt700 = {
847 .probe = rt700_probe,
848 .set_bias_level = rt700_set_bias_level,
849 .controls = rt700_snd_controls,
850 .num_controls = ARRAY_SIZE(rt700_snd_controls),
851 .dapm_widgets = rt700_dapm_widgets,
852 .num_dapm_widgets = ARRAY_SIZE(rt700_dapm_widgets),
853 .dapm_routes = rt700_audio_map,
854 .num_dapm_routes = ARRAY_SIZE(rt700_audio_map),
855 .set_jack = rt700_set_jack_detect,
856 };
857
858 static int rt700_set_sdw_stream(struct snd_soc_dai *dai, void *sdw_stream,
859 int direction)
860 {
861 struct sdw_stream_data *stream;
862
863 stream = kzalloc(sizeof(*stream), GFP_KERNEL);
864 if (!stream)
865 return -ENOMEM;
866
867 stream->sdw_stream = (struct sdw_stream_runtime *)sdw_stream;
868
869 /* Use tx_mask or rx_mask to configure stream tag and set dma_data */
870 if (direction == SNDRV_PCM_STREAM_PLAYBACK)
871 dai->playback_dma_data = stream;
872 else
873 dai->capture_dma_data = stream;
874
875 return 0;
876 }
877
878 static void rt700_shutdown(struct snd_pcm_substream *substream,
879 struct snd_soc_dai *dai)
880 {
881 struct sdw_stream_data *stream;
882
883 stream = snd_soc_dai_get_dma_data(dai, substream);
884 snd_soc_dai_set_dma_data(dai, substream, NULL);
885 kfree(stream);
886 }
887
888 static int rt700_pcm_hw_params(struct snd_pcm_substream *substream,
889 struct snd_pcm_hw_params *params,
890 struct snd_soc_dai *dai)
891 {
892 struct snd_soc_component *component = dai->component;
893 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component);
894 struct sdw_stream_config stream_config;
895 struct sdw_port_config port_config;
896 enum sdw_data_direction direction;
897 struct sdw_stream_data *stream;
898 int retval, port, num_channels;
899 unsigned int val = 0;
900
901 dev_dbg(dai->dev, "%s %s", __func__, dai->name);
902 stream = snd_soc_dai_get_dma_data(dai, substream);
903
904 if (!stream)
905 return -EINVAL;
906
907 if (!rt700->slave)
908 return -EINVAL;
909
910 /* SoundWire specific configuration */
911 /* This code assumes port 1 for playback and port 2 for capture */
912 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
913 direction = SDW_DATA_DIR_RX;
914 port = 1;
915 } else {
916 direction = SDW_DATA_DIR_TX;
917 port = 2;
918 }
919
920 switch (dai->id) {
921 case RT700_AIF1:
922 break;
923 case RT700_AIF2:
924 port += 2;
925 break;
926 default:
927 dev_err(component->dev, "Invalid DAI id %d\n", dai->id);
928 return -EINVAL;
929 }
930
931 stream_config.frame_rate = params_rate(params);
932 stream_config.ch_count = params_channels(params);
933 stream_config.bps = snd_pcm_format_width(params_format(params));
934 stream_config.direction = direction;
935
936 num_channels = params_channels(params);
937 port_config.ch_mask = (1 << (num_channels)) - 1;
938 port_config.num = port;
939
940 retval = sdw_stream_add_slave(rt700->slave, &stream_config,
941 &port_config, 1, stream->sdw_stream);
942 if (retval) {
943 dev_err(dai->dev, "Unable to configure port\n");
944 return retval;
945 }
946
947 if (params_channels(params) <= 16) {
948 /* bit 3:0 Number of Channel */
949 val |= (params_channels(params) - 1);
950 } else {
951 dev_err(component->dev, "Unsupported channels %d\n",
952 params_channels(params));
953 return -EINVAL;
954 }
955
956 switch (params_width(params)) {
957 /* bit 6:4 Bits per Sample */
958 case 8:
959 break;
960 case 16:
961 val |= (0x1 << 4);
962 break;
963 case 20:
964 val |= (0x2 << 4);
965 break;
966 case 24:
967 val |= (0x3 << 4);
968 break;
969 case 32:
970 val |= (0x4 << 4);
971 break;
972 default:
973 return -EINVAL;
974 }
975
976 /* 48Khz */
977 regmap_write(rt700->regmap, RT700_DAC_FORMAT_H, val);
978 regmap_write(rt700->regmap, RT700_ADC_FORMAT_H, val);
979
980 return retval;
981 }
982
983 static int rt700_pcm_hw_free(struct snd_pcm_substream *substream,
984 struct snd_soc_dai *dai)
985 {
986 struct snd_soc_component *component = dai->component;
987 struct rt700_priv *rt700 = snd_soc_component_get_drvdata(component);
988 struct sdw_stream_data *stream =
989 snd_soc_dai_get_dma_data(dai, substream);
990
991 if (!rt700->slave)
992 return -EINVAL;
993
994 sdw_stream_remove_slave(rt700->slave, stream->sdw_stream);
995 return 0;
996 }
997
998 #define RT700_STEREO_RATES (SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
999 #define RT700_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
1000 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S8)
1001
1002 static struct snd_soc_dai_ops rt700_ops = {
1003 .hw_params = rt700_pcm_hw_params,
1004 .hw_free = rt700_pcm_hw_free,
1005 .set_sdw_stream = rt700_set_sdw_stream,
1006 .shutdown = rt700_shutdown,
1007 };
1008
1009 static struct snd_soc_dai_driver rt700_dai[] = {
1010 {
1011 .name = "rt700-aif1",
1012 .id = RT700_AIF1,
1013 .playback = {
1014 .stream_name = "DP1 Playback",
1015 .channels_min = 1,
1016 .channels_max = 2,
1017 .rates = RT700_STEREO_RATES,
1018 .formats = RT700_FORMATS,
1019 },
1020 .capture = {
1021 .stream_name = "DP2 Capture",
1022 .channels_min = 1,
1023 .channels_max = 2,
1024 .rates = RT700_STEREO_RATES,
1025 .formats = RT700_FORMATS,
1026 },
1027 .ops = &rt700_ops,
1028 },
1029 {
1030 .name = "rt700-aif2",
1031 .id = RT700_AIF2,
1032 .playback = {
1033 .stream_name = "DP3 Playback",
1034 .channels_min = 1,
1035 .channels_max = 2,
1036 .rates = RT700_STEREO_RATES,
1037 .formats = RT700_FORMATS,
1038 },
1039 .capture = {
1040 .stream_name = "DP4 Capture",
1041 .channels_min = 1,
1042 .channels_max = 2,
1043 .rates = RT700_STEREO_RATES,
1044 .formats = RT700_FORMATS,
1045 },
1046 .ops = &rt700_ops,
1047 },
1048 };
1049
1050 /* Bus clock frequency */
1051 #define RT700_CLK_FREQ_9600000HZ 9600000
1052 #define RT700_CLK_FREQ_12000000HZ 12000000
1053 #define RT700_CLK_FREQ_6000000HZ 6000000
1054 #define RT700_CLK_FREQ_4800000HZ 4800000
1055 #define RT700_CLK_FREQ_2400000HZ 2400000
1056 #define RT700_CLK_FREQ_12288000HZ 12288000
1057
1058 int rt700_clock_config(struct device *dev)
1059 {
1060 struct rt700_priv *rt700 = dev_get_drvdata(dev);
1061 unsigned int clk_freq, value;
1062
1063 clk_freq = (rt700->params.curr_dr_freq >> 1);
1064
1065 switch (clk_freq) {
1066 case RT700_CLK_FREQ_12000000HZ:
1067 value = 0x0;
1068 break;
1069 case RT700_CLK_FREQ_6000000HZ:
1070 value = 0x1;
1071 break;
1072 case RT700_CLK_FREQ_9600000HZ:
1073 value = 0x2;
1074 break;
1075 case RT700_CLK_FREQ_4800000HZ:
1076 value = 0x3;
1077 break;
1078 case RT700_CLK_FREQ_2400000HZ:
1079 value = 0x4;
1080 break;
1081 case RT700_CLK_FREQ_12288000HZ:
1082 value = 0x5;
1083 break;
1084 default:
1085 return -EINVAL;
1086 }
1087
1088 regmap_write(rt700->regmap, 0xe0, value);
1089 regmap_write(rt700->regmap, 0xf0, value);
1090
1091 dev_dbg(dev, "%s complete, clk_freq=%d\n", __func__, clk_freq);
1092
1093 return 0;
1094 }
1095
1096 int rt700_init(struct device *dev, struct regmap *sdw_regmap,
1097 struct regmap *regmap, struct sdw_slave *slave)
1098
1099 {
1100 struct rt700_priv *rt700;
1101 int ret;
1102
1103 rt700 = devm_kzalloc(dev, sizeof(*rt700), GFP_KERNEL);
1104 if (!rt700)
1105 return -ENOMEM;
1106
1107 dev_set_drvdata(dev, rt700);
1108 rt700->slave = slave;
1109 rt700->sdw_regmap = sdw_regmap;
1110 rt700->regmap = regmap;
1111
1112 /*
1113 * Mark hw_init to false
1114 * HW init will be performed when device reports present
1115 */
1116 rt700->hw_init = false;
1117 rt700->first_hw_init = false;
1118
1119 ret = devm_snd_soc_register_component(dev,
1120 &soc_codec_dev_rt700,
1121 rt700_dai,
1122 ARRAY_SIZE(rt700_dai));
1123
1124 dev_dbg(&slave->dev, "%s\n", __func__);
1125
1126 return ret;
1127 }
1128
1129 int rt700_io_init(struct device *dev, struct sdw_slave *slave)
1130 {
1131 struct rt700_priv *rt700 = dev_get_drvdata(dev);
1132
1133 if (rt700->hw_init)
1134 return 0;
1135
1136 if (rt700->first_hw_init) {
1137 regcache_cache_only(rt700->regmap, false);
1138 regcache_cache_bypass(rt700->regmap, true);
1139 }
1140
1141 /*
1142 * PM runtime is only enabled when a Slave reports as Attached
1143 */
1144 if (!rt700->first_hw_init) {
1145 /* set autosuspend parameters */
1146 pm_runtime_set_autosuspend_delay(&slave->dev, 3000);
1147 pm_runtime_use_autosuspend(&slave->dev);
1148
1149 /* update count of parent 'active' children */
1150 pm_runtime_set_active(&slave->dev);
1151
1152 /* make sure the device does not suspend immediately */
1153 pm_runtime_mark_last_busy(&slave->dev);
1154
1155 pm_runtime_enable(&slave->dev);
1156 }
1157
1158 pm_runtime_get_noresume(&slave->dev);
1159
1160 /* reset */
1161 regmap_write(rt700->regmap, 0xff01, 0x0000);
1162 regmap_write(rt700->regmap, 0x7520, 0x001a);
1163 regmap_write(rt700->regmap, 0x7420, 0xc003);
1164
1165 /* power on */
1166 regmap_write(rt700->regmap, RT700_SET_AUDIO_POWER_STATE, AC_PWRST_D0);
1167 /* Set Pin Widget */
1168 regmap_write(rt700->regmap, RT700_SET_PIN_HP, 0x40);
1169 regmap_write(rt700->regmap, RT700_SET_PIN_SPK, 0x40);
1170 regmap_write(rt700->regmap, RT700_SET_EAPD_SPK, RT700_EAPD_HIGH);
1171 regmap_write(rt700->regmap, RT700_SET_PIN_DMIC1, 0x20);
1172 regmap_write(rt700->regmap, RT700_SET_PIN_DMIC2, 0x20);
1173 regmap_write(rt700->regmap, RT700_SET_PIN_MIC2, 0x20);
1174
1175 /* Set Configuration Default */
1176 regmap_write(rt700->regmap, 0x4f12, 0x91);
1177 regmap_write(rt700->regmap, 0x4e12, 0xd6);
1178 regmap_write(rt700->regmap, 0x4d12, 0x11);
1179 regmap_write(rt700->regmap, 0x4c12, 0x20);
1180 regmap_write(rt700->regmap, 0x4f13, 0x91);
1181 regmap_write(rt700->regmap, 0x4e13, 0xd6);
1182 regmap_write(rt700->regmap, 0x4d13, 0x11);
1183 regmap_write(rt700->regmap, 0x4c13, 0x21);
1184
1185 regmap_write(rt700->regmap, 0x4f19, 0x02);
1186 regmap_write(rt700->regmap, 0x4e19, 0xa1);
1187 regmap_write(rt700->regmap, 0x4d19, 0x90);
1188 regmap_write(rt700->regmap, 0x4c19, 0x80);
1189
1190 /* Enable Line2 */
1191 regmap_write(rt700->regmap, 0x371b, 0x40);
1192 regmap_write(rt700->regmap, 0x731b, 0xb0);
1193 regmap_write(rt700->regmap, 0x839b, 0x00);
1194
1195 /* Set index */
1196 rt700_index_write(rt700->regmap, 0x4a, 0x201b);
1197 rt700_index_write(rt700->regmap, 0x45, 0x5089);
1198 rt700_index_write(rt700->regmap, 0x6b, 0x5064);
1199 rt700_index_write(rt700->regmap, 0x48, 0xd249);
1200
1201 /* Finish Initial Settings, set power to D3 */
1202 regmap_write(rt700->regmap, RT700_SET_AUDIO_POWER_STATE, AC_PWRST_D3);
1203
1204 if (!rt700->first_hw_init) {
1205 INIT_DELAYED_WORK(&rt700->jack_detect_work,
1206 rt700_jack_detect_handler);
1207 INIT_DELAYED_WORK(&rt700->jack_btn_check_work,
1208 rt700_btn_check_handler);
1209 }
1210
1211 /*
1212 * if set_jack callback occurred early than io_init,
1213 * we set up the jack detection function now
1214 */
1215 if (rt700->hs_jack)
1216 rt700_jack_init(rt700);
1217
1218 if (rt700->first_hw_init) {
1219 regcache_cache_bypass(rt700->regmap, false);
1220 regcache_mark_dirty(rt700->regmap);
1221 } else
1222 rt700->first_hw_init = true;
1223
1224 /* Mark Slave initialization complete */
1225 rt700->hw_init = true;
1226
1227 pm_runtime_mark_last_busy(&slave->dev);
1228 pm_runtime_put_autosuspend(&slave->dev);
1229
1230 dev_dbg(&slave->dev, "%s hw_init complete\n", __func__);
1231
1232 return 0;
1233 }
1234
1235 MODULE_DESCRIPTION("ASoC RT700 driver SDW");
1236 MODULE_AUTHOR("Shuming Fan <shumingf@realtek.com>");
1237 MODULE_LICENSE("GPL v2");
Linux with added FPC-III support