1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * ALSA SoC TLV320AIC23 codec driver
4 *
5 * Author: Arun KS, <arunks@mistralsolutions.com>
6 * Copyright: (C) 2008 Mistral Solutions Pvt Ltd.,
7 *
8 * Based on sound/soc/codecs/wm8731.c by Richard Purdie
9 *
10 * Notes:
11 * The AIC23 is a driver for a low power stereo audio
12 * codec tlv320aic23
13 *
14 * The machine layer should disable unsupported inputs/outputs by
15 * snd_soc_dapm_disable_pin(codec, "LHPOUT"), etc.
16 */
17
18 #include <linux/module.h>
19 #include <linux/moduleparam.h>
20 #include <linux/init.h>
21 #include <linux/delay.h>
22 #include <linux/pm.h>
23 #include <linux/regmap.h>
24 #include <linux/slab.h>
25 #include <sound/core.h>
26 #include <sound/pcm.h>
27 #include <sound/pcm_params.h>
28 #include <sound/soc.h>
29 #include <sound/tlv.h>
30 #include <sound/initval.h>
31
32 #include "tlv320aic23.h"
33
34 /*
35 * AIC23 register cache
36 */
37 static const struct reg_default tlv320aic23_reg[] = {
38 { 0, 0x0097 },
39 { 1, 0x0097 },
40 { 2, 0x00F9 },
41 { 3, 0x00F9 },
42 { 4, 0x001A },
43 { 5, 0x0004 },
44 { 6, 0x0007 },
45 { 7, 0x0001 },
46 { 8, 0x0020 },
47 { 9, 0x0000 },
48 };
49
50 const struct regmap_config tlv320aic23_regmap = {
51 .reg_bits = 7,
52 .val_bits = 9,
53
54 .max_register = TLV320AIC23_RESET,
55 .reg_defaults = tlv320aic23_reg,
56 .num_reg_defaults = ARRAY_SIZE(tlv320aic23_reg),
57 .cache_type = REGCACHE_RBTREE,
58 };
59 EXPORT_SYMBOL(tlv320aic23_regmap);
60
61 static const char *rec_src_text[] = { "Line", "Mic" };
62 static const char *deemph_text[] = {"None", "32Khz", "44.1Khz", "48Khz"};
63
64 static SOC_ENUM_SINGLE_DECL(rec_src_enum,
65 TLV320AIC23_ANLG, 2, rec_src_text);
66
67 static const struct snd_kcontrol_new tlv320aic23_rec_src_mux_controls =
68 SOC_DAPM_ENUM("Input Select", rec_src_enum);
69
70 static SOC_ENUM_SINGLE_DECL(tlv320aic23_deemph,
71 TLV320AIC23_DIGT, 1, deemph_text);
72
73 static const DECLARE_TLV_DB_SCALE(out_gain_tlv, -12100, 100, 0);
74 static const DECLARE_TLV_DB_SCALE(input_gain_tlv, -1725, 75, 0);
75 static const DECLARE_TLV_DB_SCALE(sidetone_vol_tlv, -1800, 300, 0);
76
77 static int snd_soc_tlv320aic23_put_volsw(struct snd_kcontrol *kcontrol,
78 struct snd_ctl_elem_value *ucontrol)
79 {
80 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
81 u16 val, reg;
82
83 val = (ucontrol->value.integer.value[0] & 0x07);
84
85 /* linear conversion to userspace
86 * 000 = -6db
87 * 001 = -9db
88 * 010 = -12db
89 * 011 = -18db (Min)
90 * 100 = 0db (Max)
91 */
92 val = (val >= 4) ? 4 : (3 - val);
93
94 reg = snd_soc_component_read(component, TLV320AIC23_ANLG) & (~0x1C0);
95 snd_soc_component_write(component, TLV320AIC23_ANLG, reg | (val << 6));
96
97 return 0;
98 }
99
100 static int snd_soc_tlv320aic23_get_volsw(struct snd_kcontrol *kcontrol,
101 struct snd_ctl_elem_value *ucontrol)
102 {
103 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
104 u16 val;
105
106 val = snd_soc_component_read(component, TLV320AIC23_ANLG) & (0x1C0);
107 val = val >> 6;
108 val = (val >= 4) ? 4 : (3 - val);
109 ucontrol->value.integer.value[0] = val;
110 return 0;
111
112 }
113
114 static const struct snd_kcontrol_new tlv320aic23_snd_controls[] = {
115 SOC_DOUBLE_R_TLV("Digital Playback Volume", TLV320AIC23_LCHNVOL,
116 TLV320AIC23_RCHNVOL, 0, 127, 0, out_gain_tlv),
117 SOC_SINGLE("Digital Playback Switch", TLV320AIC23_DIGT, 3, 1, 1),
118 SOC_DOUBLE_R("Line Input Switch", TLV320AIC23_LINVOL,
119 TLV320AIC23_RINVOL, 7, 1, 0),
120 SOC_DOUBLE_R_TLV("Line Input Volume", TLV320AIC23_LINVOL,
121 TLV320AIC23_RINVOL, 0, 31, 0, input_gain_tlv),
122 SOC_SINGLE("Mic Input Switch", TLV320AIC23_ANLG, 1, 1, 1),
123 SOC_SINGLE("Mic Booster Switch", TLV320AIC23_ANLG, 0, 1, 0),
124 SOC_SINGLE_EXT_TLV("Sidetone Volume", TLV320AIC23_ANLG, 6, 4, 0,
125 snd_soc_tlv320aic23_get_volsw,
126 snd_soc_tlv320aic23_put_volsw, sidetone_vol_tlv),
127 SOC_ENUM("Playback De-emphasis", tlv320aic23_deemph),
128 };
129
130 /* PGA Mixer controls for Line and Mic switch */
131 static const struct snd_kcontrol_new tlv320aic23_output_mixer_controls[] = {
132 SOC_DAPM_SINGLE("Line Bypass Switch", TLV320AIC23_ANLG, 3, 1, 0),
133 SOC_DAPM_SINGLE("Mic Sidetone Switch", TLV320AIC23_ANLG, 5, 1, 0),
134 SOC_DAPM_SINGLE("Playback Switch", TLV320AIC23_ANLG, 4, 1, 0),
135 };
136
137 static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
138 SND_SOC_DAPM_DAC("DAC", "Playback", TLV320AIC23_PWR, 3, 1),
139 SND_SOC_DAPM_ADC("ADC", "Capture", TLV320AIC23_PWR, 2, 1),
140 SND_SOC_DAPM_MUX("Capture Source", SND_SOC_NOPM, 0, 0,
141 &tlv320aic23_rec_src_mux_controls),
142 SND_SOC_DAPM_MIXER("Output Mixer", TLV320AIC23_PWR, 4, 1,
143 &tlv320aic23_output_mixer_controls[0],
144 ARRAY_SIZE(tlv320aic23_output_mixer_controls)),
145 SND_SOC_DAPM_PGA("Line Input", TLV320AIC23_PWR, 0, 1, NULL, 0),
146 SND_SOC_DAPM_PGA("Mic Input", TLV320AIC23_PWR, 1, 1, NULL, 0),
147
148 SND_SOC_DAPM_OUTPUT("LHPOUT"),
149 SND_SOC_DAPM_OUTPUT("RHPOUT"),
150 SND_SOC_DAPM_OUTPUT("LOUT"),
151 SND_SOC_DAPM_OUTPUT("ROUT"),
152
153 SND_SOC_DAPM_INPUT("LLINEIN"),
154 SND_SOC_DAPM_INPUT("RLINEIN"),
155
156 SND_SOC_DAPM_INPUT("MICIN"),
157 };
158
159 static const struct snd_soc_dapm_route tlv320aic23_intercon[] = {
160 /* Output Mixer */
161 {"Output Mixer", "Line Bypass Switch", "Line Input"},
162 {"Output Mixer", "Playback Switch", "DAC"},
163 {"Output Mixer", "Mic Sidetone Switch", "Mic Input"},
164
165 /* Outputs */
166 {"RHPOUT", NULL, "Output Mixer"},
167 {"LHPOUT", NULL, "Output Mixer"},
168 {"LOUT", NULL, "Output Mixer"},
169 {"ROUT", NULL, "Output Mixer"},
170
171 /* Inputs */
172 {"Line Input", NULL, "LLINEIN"},
173 {"Line Input", NULL, "RLINEIN"},
174 {"Mic Input", NULL, "MICIN"},
175
176 /* input mux */
177 {"Capture Source", "Line", "Line Input"},
178 {"Capture Source", "Mic", "Mic Input"},
179 {"ADC", NULL, "Capture Source"},
180
181 };
182
183 /* AIC23 driver data */
184 struct aic23 {
185 struct regmap *regmap;
186 int mclk;
187 int requested_adc;
188 int requested_dac;
189 };
190
191 /*
192 * Common Crystals used
193 * 11.2896 Mhz /128 = *88.2k /192 = 58.8k
194 * 12.0000 Mhz /125 = *96k /136 = 88.235K
195 * 12.2880 Mhz /128 = *96k /192 = 64k
196 * 16.9344 Mhz /128 = 132.3k /192 = *88.2k
197 * 18.4320 Mhz /128 = 144k /192 = *96k
198 */
199
200 /*
201 * Normal BOSR 0-256/2 = 128, 1-384/2 = 192
202 * USB BOSR 0-250/2 = 125, 1-272/2 = 136
203 */
204 static const int bosr_usb_divisor_table[] = {
205 128, 125, 192, 136
206 };
207 #define LOWER_GROUP ((1<<0) | (1<<1) | (1<<2) | (1<<3) | (1<<6) | (1<<7))
208 #define UPPER_GROUP ((1<<8) | (1<<9) | (1<<10) | (1<<11) | (1<<15))
209 static const unsigned short sr_valid_mask[] = {
210 LOWER_GROUP|UPPER_GROUP, /* Normal, bosr - 0*/
211 LOWER_GROUP, /* Usb, bosr - 0*/
212 LOWER_GROUP|UPPER_GROUP, /* Normal, bosr - 1*/
213 UPPER_GROUP, /* Usb, bosr - 1*/
214 };
215 /*
216 * Every divisor is a factor of 11*12
217 */
218 #define SR_MULT (11*12)
219 #define A(x) (SR_MULT/x)
220 static const unsigned char sr_adc_mult_table[] = {
221 A(2), A(2), A(12), A(12), 0, 0, A(3), A(1),
222 A(2), A(2), A(11), A(11), 0, 0, 0, A(1)
223 };
224 static const unsigned char sr_dac_mult_table[] = {
225 A(2), A(12), A(2), A(12), 0, 0, A(3), A(1),
226 A(2), A(11), A(2), A(11), 0, 0, 0, A(1)
227 };
228
229 static unsigned get_score(int adc, int adc_l, int adc_h, int need_adc,
230 int dac, int dac_l, int dac_h, int need_dac)
231 {
232 if ((adc >= adc_l) && (adc <= adc_h) &&
233 (dac >= dac_l) && (dac <= dac_h)) {
234 int diff_adc = need_adc - adc;
235 int diff_dac = need_dac - dac;
236 return abs(diff_adc) + abs(diff_dac);
237 }
238 return UINT_MAX;
239 }
240
241 static int find_rate(int mclk, u32 need_adc, u32 need_dac)
242 {
243 int i, j;
244 int best_i = -1;
245 int best_j = -1;
246 int best_div = 0;
247 unsigned best_score = UINT_MAX;
248 int adc_l, adc_h, dac_l, dac_h;
249
250 need_adc *= SR_MULT;
251 need_dac *= SR_MULT;
252 /*
253 * rates given are +/- 1/32
254 */
255 adc_l = need_adc - (need_adc >> 5);
256 adc_h = need_adc + (need_adc >> 5);
257 dac_l = need_dac - (need_dac >> 5);
258 dac_h = need_dac + (need_dac >> 5);
259 for (i = 0; i < ARRAY_SIZE(bosr_usb_divisor_table); i++) {
260 int base = mclk / bosr_usb_divisor_table[i];
261 int mask = sr_valid_mask[i];
262 for (j = 0; j < ARRAY_SIZE(sr_adc_mult_table);
263 j++, mask >>= 1) {
264 int adc;
265 int dac;
266 int score;
267 if ((mask & 1) == 0)
268 continue;
269 adc = base * sr_adc_mult_table[j];
270 dac = base * sr_dac_mult_table[j];
271 score = get_score(adc, adc_l, adc_h, need_adc,
272 dac, dac_l, dac_h, need_dac);
273 if (best_score > score) {
274 best_score = score;
275 best_i = i;
276 best_j = j;
277 best_div = 0;
278 }
279 score = get_score((adc >> 1), adc_l, adc_h, need_adc,
280 (dac >> 1), dac_l, dac_h, need_dac);
281 /* prefer to have a /2 */
282 if ((score != UINT_MAX) && (best_score >= score)) {
283 best_score = score;
284 best_i = i;
285 best_j = j;
286 best_div = 1;
287 }
288 }
289 }
290 return (best_j << 2) | best_i | (best_div << TLV320AIC23_CLKIN_SHIFT);
291 }
292
293 #ifdef DEBUG
294 static void get_current_sample_rates(struct snd_soc_component *component, int mclk,
295 u32 *sample_rate_adc, u32 *sample_rate_dac)
296 {
297 int src = snd_soc_component_read(component, TLV320AIC23_SRATE);
298 int sr = (src >> 2) & 0x0f;
299 int val = (mclk / bosr_usb_divisor_table[src & 3]);
300 int adc = (val * sr_adc_mult_table[sr]) / SR_MULT;
301 int dac = (val * sr_dac_mult_table[sr]) / SR_MULT;
302 if (src & TLV320AIC23_CLKIN_HALF) {
303 adc >>= 1;
304 dac >>= 1;
305 }
306 *sample_rate_adc = adc;
307 *sample_rate_dac = dac;
308 }
309 #endif
310
311 static int set_sample_rate_control(struct snd_soc_component *component, int mclk,
312 u32 sample_rate_adc, u32 sample_rate_dac)
313 {
314 /* Search for the right sample rate */
315 int data = find_rate(mclk, sample_rate_adc, sample_rate_dac);
316 if (data < 0) {
317 printk(KERN_ERR "%s:Invalid rate %u,%u requested\n",
318 __func__, sample_rate_adc, sample_rate_dac);
319 return -EINVAL;
320 }
321 snd_soc_component_write(component, TLV320AIC23_SRATE, data);
322 #ifdef DEBUG
323 {
324 u32 adc, dac;
325 get_current_sample_rates(component, mclk, &adc, &dac);
326 printk(KERN_DEBUG "actual samplerate = %u,%u reg=%x\n",
327 adc, dac, data);
328 }
329 #endif
330 return 0;
331 }
332
333 static int tlv320aic23_hw_params(struct snd_pcm_substream *substream,
334 struct snd_pcm_hw_params *params,
335 struct snd_soc_dai *dai)
336 {
337 struct snd_soc_component *component = dai->component;
338 u16 iface_reg;
339 int ret;
340 struct aic23 *aic23 = snd_soc_component_get_drvdata(component);
341 u32 sample_rate_adc = aic23->requested_adc;
342 u32 sample_rate_dac = aic23->requested_dac;
343 u32 sample_rate = params_rate(params);
344
345 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
346 aic23->requested_dac = sample_rate_dac = sample_rate;
347 if (!sample_rate_adc)
348 sample_rate_adc = sample_rate;
349 } else {
350 aic23->requested_adc = sample_rate_adc = sample_rate;
351 if (!sample_rate_dac)
352 sample_rate_dac = sample_rate;
353 }
354 ret = set_sample_rate_control(component, aic23->mclk, sample_rate_adc,
355 sample_rate_dac);
356 if (ret < 0)
357 return ret;
358
359 iface_reg = snd_soc_component_read(component, TLV320AIC23_DIGT_FMT) & ~(0x03 << 2);
360
361 switch (params_width(params)) {
362 case 16:
363 break;
364 case 20:
365 iface_reg |= (0x01 << 2);
366 break;
367 case 24:
368 iface_reg |= (0x02 << 2);
369 break;
370 case 32:
371 iface_reg |= (0x03 << 2);
372 break;
373 }
374 snd_soc_component_write(component, TLV320AIC23_DIGT_FMT, iface_reg);
375
376 return 0;
377 }
378
379 static int tlv320aic23_pcm_prepare(struct snd_pcm_substream *substream,
380 struct snd_soc_dai *dai)
381 {
382 struct snd_soc_component *component = dai->component;
383
384 /* set active */
385 snd_soc_component_write(component, TLV320AIC23_ACTIVE, 0x0001);
386
387 return 0;
388 }
389
390 static void tlv320aic23_shutdown(struct snd_pcm_substream *substream,
391 struct snd_soc_dai *dai)
392 {
393 struct snd_soc_component *component = dai->component;
394 struct aic23 *aic23 = snd_soc_component_get_drvdata(component);
395
396 /* deactivate */
397 if (!snd_soc_component_active(component)) {
398 udelay(50);
399 snd_soc_component_write(component, TLV320AIC23_ACTIVE, 0x0);
400 }
401 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
402 aic23->requested_dac = 0;
403 else
404 aic23->requested_adc = 0;
405 }
406
407 static int tlv320aic23_mute(struct snd_soc_dai *dai, int mute, int direction)
408 {
409 struct snd_soc_component *component = dai->component;
410 u16 reg;
411
412 reg = snd_soc_component_read(component, TLV320AIC23_DIGT);
413 if (mute)
414 reg |= TLV320AIC23_DACM_MUTE;
415
416 else
417 reg &= ~TLV320AIC23_DACM_MUTE;
418
419 snd_soc_component_write(component, TLV320AIC23_DIGT, reg);
420
421 return 0;
422 }
423
424 static int tlv320aic23_set_dai_fmt(struct snd_soc_dai *codec_dai,
425 unsigned int fmt)
426 {
427 struct snd_soc_component *component = codec_dai->component;
428 u16 iface_reg;
429
430 iface_reg = snd_soc_component_read(component, TLV320AIC23_DIGT_FMT) & (~0x03);
431
432 switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
433 case SND_SOC_DAIFMT_CBP_CFP:
434 iface_reg |= TLV320AIC23_MS_MASTER;
435 break;
436 case SND_SOC_DAIFMT_CBC_CFC:
437 iface_reg &= ~TLV320AIC23_MS_MASTER;
438 break;
439 default:
440 return -EINVAL;
441
442 }
443
444 /* interface format */
445 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
446 case SND_SOC_DAIFMT_I2S:
447 iface_reg |= TLV320AIC23_FOR_I2S;
448 break;
449 case SND_SOC_DAIFMT_DSP_A:
450 iface_reg |= TLV320AIC23_LRP_ON;
451 fallthrough;
452 case SND_SOC_DAIFMT_DSP_B:
453 iface_reg |= TLV320AIC23_FOR_DSP;
454 break;
455 case SND_SOC_DAIFMT_RIGHT_J:
456 break;
457 case SND_SOC_DAIFMT_LEFT_J:
458 iface_reg |= TLV320AIC23_FOR_LJUST;
459 break;
460 default:
461 return -EINVAL;
462
463 }
464
465 snd_soc_component_write(component, TLV320AIC23_DIGT_FMT, iface_reg);
466
467 return 0;
468 }
469
470 static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai *codec_dai,
471 int clk_id, unsigned int freq, int dir)
472 {
473 struct aic23 *aic23 = snd_soc_dai_get_drvdata(codec_dai);
474 aic23->mclk = freq;
475 return 0;
476 }
477
478 static int tlv320aic23_set_bias_level(struct snd_soc_component *component,
479 enum snd_soc_bias_level level)
480 {
481 u16 reg = snd_soc_component_read(component, TLV320AIC23_PWR) & 0x17f;
482
483 switch (level) {
484 case SND_SOC_BIAS_ON:
485 /* vref/mid, osc on, dac unmute */
486 reg &= ~(TLV320AIC23_DEVICE_PWR_OFF | TLV320AIC23_OSC_OFF | \
487 TLV320AIC23_DAC_OFF);
488 snd_soc_component_write(component, TLV320AIC23_PWR, reg);
489 break;
490 case SND_SOC_BIAS_PREPARE:
491 break;
492 case SND_SOC_BIAS_STANDBY:
493 /* everything off except vref/vmid, */
494 snd_soc_component_write(component, TLV320AIC23_PWR,
495 reg | TLV320AIC23_CLK_OFF);
496 break;
497 case SND_SOC_BIAS_OFF:
498 /* everything off, dac mute, inactive */
499 snd_soc_component_write(component, TLV320AIC23_ACTIVE, 0x0);
500 snd_soc_component_write(component, TLV320AIC23_PWR, 0x1ff);
501 break;
502 }
503 return 0;
504 }
505
506 #define AIC23_RATES SNDRV_PCM_RATE_8000_96000
507 #define AIC23_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
508 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE)
509
510 static const struct snd_soc_dai_ops tlv320aic23_dai_ops = {
511 .prepare = tlv320aic23_pcm_prepare,
512 .hw_params = tlv320aic23_hw_params,
513 .shutdown = tlv320aic23_shutdown,
514 .mute_stream = tlv320aic23_mute,
515 .set_fmt = tlv320aic23_set_dai_fmt,
516 .set_sysclk = tlv320aic23_set_dai_sysclk,
517 .no_capture_mute = 1,
518 };
519
520 static struct snd_soc_dai_driver tlv320aic23_dai = {
521 .name = "tlv320aic23-hifi",
522 .playback = {
523 .stream_name = "Playback",
524 .channels_min = 2,
525 .channels_max = 2,
526 .rates = AIC23_RATES,
527 .formats = AIC23_FORMATS,},
528 .capture = {
529 .stream_name = "Capture",
530 .channels_min = 2,
531 .channels_max = 2,
532 .rates = AIC23_RATES,
533 .formats = AIC23_FORMATS,},
534 .ops = &tlv320aic23_dai_ops,
535 };
536
537 static int tlv320aic23_resume(struct snd_soc_component *component)
538 {
539 struct aic23 *aic23 = snd_soc_component_get_drvdata(component);
540 regcache_mark_dirty(aic23->regmap);
541 regcache_sync(aic23->regmap);
542
543 return 0;
544 }
545
546 static int tlv320aic23_component_probe(struct snd_soc_component *component)
547 {
548 /* Reset codec */
549 snd_soc_component_write(component, TLV320AIC23_RESET, 0);
550
551 snd_soc_component_write(component, TLV320AIC23_DIGT, TLV320AIC23_DEEMP_44K);
552
553 /* Unmute input */
554 snd_soc_component_update_bits(component, TLV320AIC23_LINVOL,
555 TLV320AIC23_LIM_MUTED, TLV320AIC23_LRS_ENABLED);
556
557 snd_soc_component_update_bits(component, TLV320AIC23_RINVOL,
558 TLV320AIC23_LIM_MUTED, TLV320AIC23_LRS_ENABLED);
559
560 snd_soc_component_update_bits(component, TLV320AIC23_ANLG,
561 TLV320AIC23_BYPASS_ON | TLV320AIC23_MICM_MUTED,
562 0);
563
564 /* Default output volume */
565 snd_soc_component_write(component, TLV320AIC23_LCHNVOL,
566 TLV320AIC23_DEFAULT_OUT_VOL & TLV320AIC23_OUT_VOL_MASK);
567 snd_soc_component_write(component, TLV320AIC23_RCHNVOL,
568 TLV320AIC23_DEFAULT_OUT_VOL & TLV320AIC23_OUT_VOL_MASK);
569
570 snd_soc_component_write(component, TLV320AIC23_ACTIVE, 0x1);
571
572 return 0;
573 }
574
575 static const struct snd_soc_component_driver soc_component_dev_tlv320aic23 = {
576 .probe = tlv320aic23_component_probe,
577 .resume = tlv320aic23_resume,
578 .set_bias_level = tlv320aic23_set_bias_level,
579 .controls = tlv320aic23_snd_controls,
580 .num_controls = ARRAY_SIZE(tlv320aic23_snd_controls),
581 .dapm_widgets = tlv320aic23_dapm_widgets,
582 .num_dapm_widgets = ARRAY_SIZE(tlv320aic23_dapm_widgets),
583 .dapm_routes = tlv320aic23_intercon,
584 .num_dapm_routes = ARRAY_SIZE(tlv320aic23_intercon),
585 .suspend_bias_off = 1,
586 .idle_bias_on = 1,
587 .use_pmdown_time = 1,
588 .endianness = 1,
589 };
590
591 int tlv320aic23_probe(struct device *dev, struct regmap *regmap)
592 {
593 struct aic23 *aic23;
594
595 if (IS_ERR(regmap))
596 return PTR_ERR(regmap);
597
598 aic23 = devm_kzalloc(dev, sizeof(struct aic23), GFP_KERNEL);
599 if (aic23 == NULL)
600 return -ENOMEM;
601
602 aic23->regmap = regmap;
603
604 dev_set_drvdata(dev, aic23);
605
606 return devm_snd_soc_register_component(dev,
607 &soc_component_dev_tlv320aic23,
608 &tlv320aic23_dai, 1);
609 }
610 EXPORT_SYMBOL(tlv320aic23_probe);
611
612 MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver");
613 MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
614 MODULE_LICENSE("GPL");
615
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.