1 /*
2 * ALSA SoC TLV320AIC23 codec driver
3 *
4 * Author: Arun KS, <arunks@mistralsolutions.com>
5 * Copyright: (C) 2008 Mistral Solutions Pvt Ltd.,
6 *
7 * Based on sound/soc/codecs/wm8731.c by Richard Purdie
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 *
13 * Notes:
14 * The AIC23 is a driver for a low power stereo audio
15 * codec tlv320aic23
16 *
17 * The machine layer should disable unsupported inputs/outputs by
18 * snd_soc_dapm_disable_pin(codec, "LHPOUT"), etc.
19 */
20
21 #include <linux/module.h>
22 #include <linux/moduleparam.h>
23 #include <linux/init.h>
24 #include <linux/delay.h>
25 #include <linux/pm.h>
26 #include <linux/regmap.h>
27 #include <linux/slab.h>
28 #include <sound/core.h>
29 #include <sound/pcm.h>
30 #include <sound/pcm_params.h>
31 #include <sound/soc.h>
32 #include <sound/tlv.h>
33 #include <sound/initval.h>
34
35 #include "tlv320aic23.h"
36
37 /*
38 * AIC23 register cache
39 */
40 static const struct reg_default tlv320aic23_reg[] = {
41 { 0, 0x0097 },
42 { 1, 0x0097 },
43 { 2, 0x00F9 },
44 { 3, 0x00F9 },
45 { 4, 0x001A },
46 { 5, 0x0004 },
47 { 6, 0x0007 },
48 { 7, 0x0001 },
49 { 8, 0x0020 },
50 { 9, 0x0000 },
51 };
52
53 const struct regmap_config tlv320aic23_regmap = {
54 .reg_bits = 7,
55 .val_bits = 9,
56
57 .max_register = TLV320AIC23_RESET,
58 .reg_defaults = tlv320aic23_reg,
59 .num_reg_defaults = ARRAY_SIZE(tlv320aic23_reg),
60 .cache_type = REGCACHE_RBTREE,
61 };
62 EXPORT_SYMBOL(tlv320aic23_regmap);
63
64 static const char *rec_src_text[] = { "Line", "Mic" };
65 static const char *deemph_text[] = {"None", "32Khz", "44.1Khz", "48Khz"};
66
67 static SOC_ENUM_SINGLE_DECL(rec_src_enum,
68 TLV320AIC23_ANLG, 2, rec_src_text);
69
70 static const struct snd_kcontrol_new tlv320aic23_rec_src_mux_controls =
71 SOC_DAPM_ENUM("Input Select", rec_src_enum);
72
73 static SOC_ENUM_SINGLE_DECL(tlv320aic23_rec_src,
74 TLV320AIC23_ANLG, 2, rec_src_text);
75 static SOC_ENUM_SINGLE_DECL(tlv320aic23_deemph,
76 TLV320AIC23_DIGT, 1, deemph_text);
77
78 static const DECLARE_TLV_DB_SCALE(out_gain_tlv, -12100, 100, 0);
79 static const DECLARE_TLV_DB_SCALE(input_gain_tlv, -1725, 75, 0);
80 static const DECLARE_TLV_DB_SCALE(sidetone_vol_tlv, -1800, 300, 0);
81
snd_soc_tlv320aic23_put_volsw(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)82 static int snd_soc_tlv320aic23_put_volsw(struct snd_kcontrol *kcontrol,
83 struct snd_ctl_elem_value *ucontrol)
84 {
85 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
86 u16 val, reg;
87
88 val = (ucontrol->value.integer.value[0] & 0x07);
89
90 /* linear conversion to userspace
91 * 000 = -6db
92 * 001 = -9db
93 * 010 = -12db
94 * 011 = -18db (Min)
95 * 100 = 0db (Max)
96 */
97 val = (val >= 4) ? 4 : (3 - val);
98
99 reg = snd_soc_read(codec, TLV320AIC23_ANLG) & (~0x1C0);
100 snd_soc_write(codec, TLV320AIC23_ANLG, reg | (val << 6));
101
102 return 0;
103 }
104
snd_soc_tlv320aic23_get_volsw(struct snd_kcontrol * kcontrol,struct snd_ctl_elem_value * ucontrol)105 static int snd_soc_tlv320aic23_get_volsw(struct snd_kcontrol *kcontrol,
106 struct snd_ctl_elem_value *ucontrol)
107 {
108 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
109 u16 val;
110
111 val = snd_soc_read(codec, TLV320AIC23_ANLG) & (0x1C0);
112 val = val >> 6;
113 val = (val >= 4) ? 4 : (3 - val);
114 ucontrol->value.integer.value[0] = val;
115 return 0;
116
117 }
118
119 static const struct snd_kcontrol_new tlv320aic23_snd_controls[] = {
120 SOC_DOUBLE_R_TLV("Digital Playback Volume", TLV320AIC23_LCHNVOL,
121 TLV320AIC23_RCHNVOL, 0, 127, 0, out_gain_tlv),
122 SOC_SINGLE("Digital Playback Switch", TLV320AIC23_DIGT, 3, 1, 1),
123 SOC_DOUBLE_R("Line Input Switch", TLV320AIC23_LINVOL,
124 TLV320AIC23_RINVOL, 7, 1, 0),
125 SOC_DOUBLE_R_TLV("Line Input Volume", TLV320AIC23_LINVOL,
126 TLV320AIC23_RINVOL, 0, 31, 0, input_gain_tlv),
127 SOC_SINGLE("Mic Input Switch", TLV320AIC23_ANLG, 1, 1, 1),
128 SOC_SINGLE("Mic Booster Switch", TLV320AIC23_ANLG, 0, 1, 0),
129 SOC_SINGLE_EXT_TLV("Sidetone Volume", TLV320AIC23_ANLG, 6, 4, 0,
130 snd_soc_tlv320aic23_get_volsw,
131 snd_soc_tlv320aic23_put_volsw, sidetone_vol_tlv),
132 SOC_ENUM("Playback De-emphasis", tlv320aic23_deemph),
133 };
134
135 /* PGA Mixer controls for Line and Mic switch */
136 static const struct snd_kcontrol_new tlv320aic23_output_mixer_controls[] = {
137 SOC_DAPM_SINGLE("Line Bypass Switch", TLV320AIC23_ANLG, 3, 1, 0),
138 SOC_DAPM_SINGLE("Mic Sidetone Switch", TLV320AIC23_ANLG, 5, 1, 0),
139 SOC_DAPM_SINGLE("Playback Switch", TLV320AIC23_ANLG, 4, 1, 0),
140 };
141
142 static const struct snd_soc_dapm_widget tlv320aic23_dapm_widgets[] = {
143 SND_SOC_DAPM_DAC("DAC", "Playback", TLV320AIC23_PWR, 3, 1),
144 SND_SOC_DAPM_ADC("ADC", "Capture", TLV320AIC23_PWR, 2, 1),
145 SND_SOC_DAPM_MUX("Capture Source", SND_SOC_NOPM, 0, 0,
146 &tlv320aic23_rec_src_mux_controls),
147 SND_SOC_DAPM_MIXER("Output Mixer", TLV320AIC23_PWR, 4, 1,
148 &tlv320aic23_output_mixer_controls[0],
149 ARRAY_SIZE(tlv320aic23_output_mixer_controls)),
150 SND_SOC_DAPM_PGA("Line Input", TLV320AIC23_PWR, 0, 1, NULL, 0),
151 SND_SOC_DAPM_PGA("Mic Input", TLV320AIC23_PWR, 1, 1, NULL, 0),
152
153 SND_SOC_DAPM_OUTPUT("LHPOUT"),
154 SND_SOC_DAPM_OUTPUT("RHPOUT"),
155 SND_SOC_DAPM_OUTPUT("LOUT"),
156 SND_SOC_DAPM_OUTPUT("ROUT"),
157
158 SND_SOC_DAPM_INPUT("LLINEIN"),
159 SND_SOC_DAPM_INPUT("RLINEIN"),
160
161 SND_SOC_DAPM_INPUT("MICIN"),
162 };
163
164 static const struct snd_soc_dapm_route tlv320aic23_intercon[] = {
165 /* Output Mixer */
166 {"Output Mixer", "Line Bypass Switch", "Line Input"},
167 {"Output Mixer", "Playback Switch", "DAC"},
168 {"Output Mixer", "Mic Sidetone Switch", "Mic Input"},
169
170 /* Outputs */
171 {"RHPOUT", NULL, "Output Mixer"},
172 {"LHPOUT", NULL, "Output Mixer"},
173 {"LOUT", NULL, "Output Mixer"},
174 {"ROUT", NULL, "Output Mixer"},
175
176 /* Inputs */
177 {"Line Input", "NULL", "LLINEIN"},
178 {"Line Input", "NULL", "RLINEIN"},
179
180 {"Mic Input", "NULL", "MICIN"},
181
182 /* input mux */
183 {"Capture Source", "Line", "Line Input"},
184 {"Capture Source", "Mic", "Mic Input"},
185 {"ADC", NULL, "Capture Source"},
186
187 };
188
189 /* AIC23 driver data */
190 struct aic23 {
191 struct regmap *regmap;
192 int mclk;
193 int requested_adc;
194 int requested_dac;
195 };
196
197 /*
198 * Common Crystals used
199 * 11.2896 Mhz /128 = *88.2k /192 = 58.8k
200 * 12.0000 Mhz /125 = *96k /136 = 88.235K
201 * 12.2880 Mhz /128 = *96k /192 = 64k
202 * 16.9344 Mhz /128 = 132.3k /192 = *88.2k
203 * 18.4320 Mhz /128 = 144k /192 = *96k
204 */
205
206 /*
207 * Normal BOSR 0-256/2 = 128, 1-384/2 = 192
208 * USB BOSR 0-250/2 = 125, 1-272/2 = 136
209 */
210 static const int bosr_usb_divisor_table[] = {
211 128, 125, 192, 136
212 };
213 #define LOWER_GROUP ((1<<0) | (1<<1) | (1<<2) | (1<<3) | (1<<6) | (1<<7))
214 #define UPPER_GROUP ((1<<8) | (1<<9) | (1<<10) | (1<<11) | (1<<15))
215 static const unsigned short sr_valid_mask[] = {
216 LOWER_GROUP|UPPER_GROUP, /* Normal, bosr - 0*/
217 LOWER_GROUP, /* Usb, bosr - 0*/
218 LOWER_GROUP|UPPER_GROUP, /* Normal, bosr - 1*/
219 UPPER_GROUP, /* Usb, bosr - 1*/
220 };
221 /*
222 * Every divisor is a factor of 11*12
223 */
224 #define SR_MULT (11*12)
225 #define A(x) (SR_MULT/x)
226 static const unsigned char sr_adc_mult_table[] = {
227 A(2), A(2), A(12), A(12), 0, 0, A(3), A(1),
228 A(2), A(2), A(11), A(11), 0, 0, 0, A(1)
229 };
230 static const unsigned char sr_dac_mult_table[] = {
231 A(2), A(12), A(2), A(12), 0, 0, A(3), A(1),
232 A(2), A(11), A(2), A(11), 0, 0, 0, A(1)
233 };
234
get_score(int adc,int adc_l,int adc_h,int need_adc,int dac,int dac_l,int dac_h,int need_dac)235 static unsigned get_score(int adc, int adc_l, int adc_h, int need_adc,
236 int dac, int dac_l, int dac_h, int need_dac)
237 {
238 if ((adc >= adc_l) && (adc <= adc_h) &&
239 (dac >= dac_l) && (dac <= dac_h)) {
240 int diff_adc = need_adc - adc;
241 int diff_dac = need_dac - dac;
242 return abs(diff_adc) + abs(diff_dac);
243 }
244 return UINT_MAX;
245 }
246
find_rate(int mclk,u32 need_adc,u32 need_dac)247 static int find_rate(int mclk, u32 need_adc, u32 need_dac)
248 {
249 int i, j;
250 int best_i = -1;
251 int best_j = -1;
252 int best_div = 0;
253 unsigned best_score = UINT_MAX;
254 int adc_l, adc_h, dac_l, dac_h;
255
256 need_adc *= SR_MULT;
257 need_dac *= SR_MULT;
258 /*
259 * rates given are +/- 1/32
260 */
261 adc_l = need_adc - (need_adc >> 5);
262 adc_h = need_adc + (need_adc >> 5);
263 dac_l = need_dac - (need_dac >> 5);
264 dac_h = need_dac + (need_dac >> 5);
265 for (i = 0; i < ARRAY_SIZE(bosr_usb_divisor_table); i++) {
266 int base = mclk / bosr_usb_divisor_table[i];
267 int mask = sr_valid_mask[i];
268 for (j = 0; j < ARRAY_SIZE(sr_adc_mult_table);
269 j++, mask >>= 1) {
270 int adc;
271 int dac;
272 int score;
273 if ((mask & 1) == 0)
274 continue;
275 adc = base * sr_adc_mult_table[j];
276 dac = base * sr_dac_mult_table[j];
277 score = get_score(adc, adc_l, adc_h, need_adc,
278 dac, dac_l, dac_h, need_dac);
279 if (best_score > score) {
280 best_score = score;
281 best_i = i;
282 best_j = j;
283 best_div = 0;
284 }
285 score = get_score((adc >> 1), adc_l, adc_h, need_adc,
286 (dac >> 1), dac_l, dac_h, need_dac);
287 /* prefer to have a /2 */
288 if ((score != UINT_MAX) && (best_score >= score)) {
289 best_score = score;
290 best_i = i;
291 best_j = j;
292 best_div = 1;
293 }
294 }
295 }
296 return (best_j << 2) | best_i | (best_div << TLV320AIC23_CLKIN_SHIFT);
297 }
298
299 #ifdef DEBUG
get_current_sample_rates(struct snd_soc_codec * codec,int mclk,u32 * sample_rate_adc,u32 * sample_rate_dac)300 static void get_current_sample_rates(struct snd_soc_codec *codec, int mclk,
301 u32 *sample_rate_adc, u32 *sample_rate_dac)
302 {
303 int src = snd_soc_read(codec, TLV320AIC23_SRATE);
304 int sr = (src >> 2) & 0x0f;
305 int val = (mclk / bosr_usb_divisor_table[src & 3]);
306 int adc = (val * sr_adc_mult_table[sr]) / SR_MULT;
307 int dac = (val * sr_dac_mult_table[sr]) / SR_MULT;
308 if (src & TLV320AIC23_CLKIN_HALF) {
309 adc >>= 1;
310 dac >>= 1;
311 }
312 *sample_rate_adc = adc;
313 *sample_rate_dac = dac;
314 }
315 #endif
316
set_sample_rate_control(struct snd_soc_codec * codec,int mclk,u32 sample_rate_adc,u32 sample_rate_dac)317 static int set_sample_rate_control(struct snd_soc_codec *codec, int mclk,
318 u32 sample_rate_adc, u32 sample_rate_dac)
319 {
320 /* Search for the right sample rate */
321 int data = find_rate(mclk, sample_rate_adc, sample_rate_dac);
322 if (data < 0) {
323 printk(KERN_ERR "%s:Invalid rate %u,%u requested\n",
324 __func__, sample_rate_adc, sample_rate_dac);
325 return -EINVAL;
326 }
327 snd_soc_write(codec, TLV320AIC23_SRATE, data);
328 #ifdef DEBUG
329 {
330 u32 adc, dac;
331 get_current_sample_rates(codec, mclk, &adc, &dac);
332 printk(KERN_DEBUG "actual samplerate = %u,%u reg=%x\n",
333 adc, dac, data);
334 }
335 #endif
336 return 0;
337 }
338
tlv320aic23_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)339 static int tlv320aic23_hw_params(struct snd_pcm_substream *substream,
340 struct snd_pcm_hw_params *params,
341 struct snd_soc_dai *dai)
342 {
343 struct snd_soc_codec *codec = dai->codec;
344 u16 iface_reg;
345 int ret;
346 struct aic23 *aic23 = snd_soc_codec_get_drvdata(codec);
347 u32 sample_rate_adc = aic23->requested_adc;
348 u32 sample_rate_dac = aic23->requested_dac;
349 u32 sample_rate = params_rate(params);
350
351 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
352 aic23->requested_dac = sample_rate_dac = sample_rate;
353 if (!sample_rate_adc)
354 sample_rate_adc = sample_rate;
355 } else {
356 aic23->requested_adc = sample_rate_adc = sample_rate;
357 if (!sample_rate_dac)
358 sample_rate_dac = sample_rate;
359 }
360 ret = set_sample_rate_control(codec, aic23->mclk, sample_rate_adc,
361 sample_rate_dac);
362 if (ret < 0)
363 return ret;
364
365 iface_reg = snd_soc_read(codec, TLV320AIC23_DIGT_FMT) & ~(0x03 << 2);
366
367 switch (params_width(params)) {
368 case 16:
369 break;
370 case 20:
371 iface_reg |= (0x01 << 2);
372 break;
373 case 24:
374 iface_reg |= (0x02 << 2);
375 break;
376 case 32:
377 iface_reg |= (0x03 << 2);
378 break;
379 }
380 snd_soc_write(codec, TLV320AIC23_DIGT_FMT, iface_reg);
381
382 return 0;
383 }
384
tlv320aic23_pcm_prepare(struct snd_pcm_substream * substream,struct snd_soc_dai * dai)385 static int tlv320aic23_pcm_prepare(struct snd_pcm_substream *substream,
386 struct snd_soc_dai *dai)
387 {
388 struct snd_soc_codec *codec = dai->codec;
389
390 /* set active */
391 snd_soc_write(codec, TLV320AIC23_ACTIVE, 0x0001);
392
393 return 0;
394 }
395
tlv320aic23_shutdown(struct snd_pcm_substream * substream,struct snd_soc_dai * dai)396 static void tlv320aic23_shutdown(struct snd_pcm_substream *substream,
397 struct snd_soc_dai *dai)
398 {
399 struct snd_soc_codec *codec = dai->codec;
400 struct aic23 *aic23 = snd_soc_codec_get_drvdata(codec);
401
402 /* deactivate */
403 if (!snd_soc_codec_is_active(codec)) {
404 udelay(50);
405 snd_soc_write(codec, TLV320AIC23_ACTIVE, 0x0);
406 }
407 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
408 aic23->requested_dac = 0;
409 else
410 aic23->requested_adc = 0;
411 }
412
tlv320aic23_mute(struct snd_soc_dai * dai,int mute)413 static int tlv320aic23_mute(struct snd_soc_dai *dai, int mute)
414 {
415 struct snd_soc_codec *codec = dai->codec;
416 u16 reg;
417
418 reg = snd_soc_read(codec, TLV320AIC23_DIGT);
419 if (mute)
420 reg |= TLV320AIC23_DACM_MUTE;
421
422 else
423 reg &= ~TLV320AIC23_DACM_MUTE;
424
425 snd_soc_write(codec, TLV320AIC23_DIGT, reg);
426
427 return 0;
428 }
429
tlv320aic23_set_dai_fmt(struct snd_soc_dai * codec_dai,unsigned int fmt)430 static int tlv320aic23_set_dai_fmt(struct snd_soc_dai *codec_dai,
431 unsigned int fmt)
432 {
433 struct snd_soc_codec *codec = codec_dai->codec;
434 u16 iface_reg;
435
436 iface_reg = snd_soc_read(codec, TLV320AIC23_DIGT_FMT) & (~0x03);
437
438 /* set master/slave audio interface */
439 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
440 case SND_SOC_DAIFMT_CBM_CFM:
441 iface_reg |= TLV320AIC23_MS_MASTER;
442 break;
443 case SND_SOC_DAIFMT_CBS_CFS:
444 iface_reg &= ~TLV320AIC23_MS_MASTER;
445 break;
446 default:
447 return -EINVAL;
448
449 }
450
451 /* interface format */
452 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
453 case SND_SOC_DAIFMT_I2S:
454 iface_reg |= TLV320AIC23_FOR_I2S;
455 break;
456 case SND_SOC_DAIFMT_DSP_A:
457 iface_reg |= TLV320AIC23_LRP_ON;
458 case SND_SOC_DAIFMT_DSP_B:
459 iface_reg |= TLV320AIC23_FOR_DSP;
460 break;
461 case SND_SOC_DAIFMT_RIGHT_J:
462 break;
463 case SND_SOC_DAIFMT_LEFT_J:
464 iface_reg |= TLV320AIC23_FOR_LJUST;
465 break;
466 default:
467 return -EINVAL;
468
469 }
470
471 snd_soc_write(codec, TLV320AIC23_DIGT_FMT, iface_reg);
472
473 return 0;
474 }
475
tlv320aic23_set_dai_sysclk(struct snd_soc_dai * codec_dai,int clk_id,unsigned int freq,int dir)476 static int tlv320aic23_set_dai_sysclk(struct snd_soc_dai *codec_dai,
477 int clk_id, unsigned int freq, int dir)
478 {
479 struct aic23 *aic23 = snd_soc_dai_get_drvdata(codec_dai);
480 aic23->mclk = freq;
481 return 0;
482 }
483
tlv320aic23_set_bias_level(struct snd_soc_codec * codec,enum snd_soc_bias_level level)484 static int tlv320aic23_set_bias_level(struct snd_soc_codec *codec,
485 enum snd_soc_bias_level level)
486 {
487 u16 reg = snd_soc_read(codec, TLV320AIC23_PWR) & 0x17f;
488
489 switch (level) {
490 case SND_SOC_BIAS_ON:
491 /* vref/mid, osc on, dac unmute */
492 reg &= ~(TLV320AIC23_DEVICE_PWR_OFF | TLV320AIC23_OSC_OFF | \
493 TLV320AIC23_DAC_OFF);
494 snd_soc_write(codec, TLV320AIC23_PWR, reg);
495 break;
496 case SND_SOC_BIAS_PREPARE:
497 break;
498 case SND_SOC_BIAS_STANDBY:
499 /* everything off except vref/vmid, */
500 snd_soc_write(codec, TLV320AIC23_PWR,
501 reg | TLV320AIC23_CLK_OFF);
502 break;
503 case SND_SOC_BIAS_OFF:
504 /* everything off, dac mute, inactive */
505 snd_soc_write(codec, TLV320AIC23_ACTIVE, 0x0);
506 snd_soc_write(codec, TLV320AIC23_PWR, 0x1ff);
507 break;
508 }
509 codec->dapm.bias_level = level;
510 return 0;
511 }
512
513 #define AIC23_RATES SNDRV_PCM_RATE_8000_96000
514 #define AIC23_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
515 SNDRV_PCM_FMTBIT_S24_3LE | SNDRV_PCM_FMTBIT_S32_LE)
516
517 static const struct snd_soc_dai_ops tlv320aic23_dai_ops = {
518 .prepare = tlv320aic23_pcm_prepare,
519 .hw_params = tlv320aic23_hw_params,
520 .shutdown = tlv320aic23_shutdown,
521 .digital_mute = tlv320aic23_mute,
522 .set_fmt = tlv320aic23_set_dai_fmt,
523 .set_sysclk = tlv320aic23_set_dai_sysclk,
524 };
525
526 static struct snd_soc_dai_driver tlv320aic23_dai = {
527 .name = "tlv320aic23-hifi",
528 .playback = {
529 .stream_name = "Playback",
530 .channels_min = 2,
531 .channels_max = 2,
532 .rates = AIC23_RATES,
533 .formats = AIC23_FORMATS,},
534 .capture = {
535 .stream_name = "Capture",
536 .channels_min = 2,
537 .channels_max = 2,
538 .rates = AIC23_RATES,
539 .formats = AIC23_FORMATS,},
540 .ops = &tlv320aic23_dai_ops,
541 };
542
tlv320aic23_suspend(struct snd_soc_codec * codec)543 static int tlv320aic23_suspend(struct snd_soc_codec *codec)
544 {
545 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF);
546
547 return 0;
548 }
549
tlv320aic23_resume(struct snd_soc_codec * codec)550 static int tlv320aic23_resume(struct snd_soc_codec *codec)
551 {
552 struct aic23 *aic23 = snd_soc_codec_get_drvdata(codec);
553 regcache_mark_dirty(aic23->regmap);
554 regcache_sync(aic23->regmap);
555 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
556
557 return 0;
558 }
559
tlv320aic23_codec_probe(struct snd_soc_codec * codec)560 static int tlv320aic23_codec_probe(struct snd_soc_codec *codec)
561 {
562 /* Reset codec */
563 snd_soc_write(codec, TLV320AIC23_RESET, 0);
564
565 /* power on device */
566 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
567
568 snd_soc_write(codec, TLV320AIC23_DIGT, TLV320AIC23_DEEMP_44K);
569
570 /* Unmute input */
571 snd_soc_update_bits(codec, TLV320AIC23_LINVOL,
572 TLV320AIC23_LIM_MUTED, TLV320AIC23_LRS_ENABLED);
573
574 snd_soc_update_bits(codec, TLV320AIC23_RINVOL,
575 TLV320AIC23_LIM_MUTED, TLV320AIC23_LRS_ENABLED);
576
577 snd_soc_update_bits(codec, TLV320AIC23_ANLG,
578 TLV320AIC23_BYPASS_ON | TLV320AIC23_MICM_MUTED,
579 0);
580
581 /* Default output volume */
582 snd_soc_write(codec, TLV320AIC23_LCHNVOL,
583 TLV320AIC23_DEFAULT_OUT_VOL & TLV320AIC23_OUT_VOL_MASK);
584 snd_soc_write(codec, TLV320AIC23_RCHNVOL,
585 TLV320AIC23_DEFAULT_OUT_VOL & TLV320AIC23_OUT_VOL_MASK);
586
587 snd_soc_write(codec, TLV320AIC23_ACTIVE, 0x1);
588
589 return 0;
590 }
591
tlv320aic23_remove(struct snd_soc_codec * codec)592 static int tlv320aic23_remove(struct snd_soc_codec *codec)
593 {
594 tlv320aic23_set_bias_level(codec, SND_SOC_BIAS_OFF);
595 return 0;
596 }
597
598 static struct snd_soc_codec_driver soc_codec_dev_tlv320aic23 = {
599 .probe = tlv320aic23_codec_probe,
600 .remove = tlv320aic23_remove,
601 .suspend = tlv320aic23_suspend,
602 .resume = tlv320aic23_resume,
603 .set_bias_level = tlv320aic23_set_bias_level,
604 .controls = tlv320aic23_snd_controls,
605 .num_controls = ARRAY_SIZE(tlv320aic23_snd_controls),
606 .dapm_widgets = tlv320aic23_dapm_widgets,
607 .num_dapm_widgets = ARRAY_SIZE(tlv320aic23_dapm_widgets),
608 .dapm_routes = tlv320aic23_intercon,
609 .num_dapm_routes = ARRAY_SIZE(tlv320aic23_intercon),
610 };
611
tlv320aic23_probe(struct device * dev,struct regmap * regmap)612 int tlv320aic23_probe(struct device *dev, struct regmap *regmap)
613 {
614 struct aic23 *aic23;
615
616 if (IS_ERR(regmap))
617 return PTR_ERR(regmap);
618
619 aic23 = devm_kzalloc(dev, sizeof(struct aic23), GFP_KERNEL);
620 if (aic23 == NULL)
621 return -ENOMEM;
622
623 aic23->regmap = regmap;
624
625 dev_set_drvdata(dev, aic23);
626
627 return snd_soc_register_codec(dev, &soc_codec_dev_tlv320aic23,
628 &tlv320aic23_dai, 1);
629 }
630 EXPORT_SYMBOL(tlv320aic23_probe);
631
632 MODULE_DESCRIPTION("ASoC TLV320AIC23 codec driver");
633 MODULE_AUTHOR("Arun KS <arunks@mistralsolutions.com>");
634 MODULE_LICENSE("GPL");
635