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ASoC: twl6040: Assign id for each DAI
[deliverable/linux.git] / sound / soc / codecs / twl6040.c
1 /*
2 * ALSA SoC TWL6040 codec driver
3 *
4 * Author: Misael Lopez Cruz <x0052729@ti.com>
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * version 2 as published by the Free Software Foundation.
9 *
10 * This program is distributed in the hope that it will be useful, but
11 * WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 * General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
18 * 02110-1301 USA
19 *
20 */
21
22 #include <linux/module.h>
23 #include <linux/moduleparam.h>
24 #include <linux/init.h>
25 #include <linux/delay.h>
26 #include <linux/pm.h>
27 #include <linux/platform_device.h>
28 #include <linux/slab.h>
29 #include <linux/mfd/twl6040.h>
30
31 #include <sound/core.h>
32 #include <sound/pcm.h>
33 #include <sound/pcm_params.h>
34 #include <sound/soc.h>
35 #include <sound/soc-dapm.h>
36 #include <sound/initval.h>
37 #include <sound/tlv.h>
38
39 #include "twl6040.h"
40
41 enum twl6040_dai_id {
42 TWL6040_DAI_LEGACY = 0,
43 TWL6040_DAI_UL,
44 TWL6040_DAI_DL1,
45 TWL6040_DAI_DL2,
46 TWL6040_DAI_VIB,
47 };
48
49 #define TWL6040_RATES SNDRV_PCM_RATE_8000_96000
50 #define TWL6040_FORMATS (SNDRV_PCM_FMTBIT_S32_LE)
51
52 #define TWL6040_OUTHS_0dB 0x00
53 #define TWL6040_OUTHS_M30dB 0x0F
54 #define TWL6040_OUTHF_0dB 0x03
55 #define TWL6040_OUTHF_M52dB 0x1D
56
57 /* Shadow register used by the driver */
58 #define TWL6040_REG_SW_SHADOW 0x2F
59 #define TWL6040_CACHEREGNUM (TWL6040_REG_SW_SHADOW + 1)
60
61 /* TWL6040_REG_SW_SHADOW (0x2F) fields */
62 #define TWL6040_EAR_PATH_ENABLE 0x01
63
64 struct twl6040_jack_data {
65 struct snd_soc_jack *jack;
66 struct delayed_work work;
67 int report;
68 };
69
70 /* codec private data */
71 struct twl6040_data {
72 int plug_irq;
73 int codec_powered;
74 int pll;
75 int pll_power_mode;
76 int hs_power_mode;
77 int hs_power_mode_locked;
78 unsigned int clk_in;
79 unsigned int sysclk;
80 struct twl6040_jack_data hs_jack;
81 struct snd_soc_codec *codec;
82 struct mutex mutex;
83 };
84
85 /*
86 * twl6040 register cache & default register settings
87 */
88 static const u8 twl6040_reg[TWL6040_CACHEREGNUM] = {
89 0x00, /* not used 0x00 */
90 0x4B, /* REG_ASICID 0x01 (ro) */
91 0x00, /* REG_ASICREV 0x02 (ro) */
92 0x00, /* REG_INTID 0x03 */
93 0x00, /* REG_INTMR 0x04 */
94 0x00, /* REG_NCPCTRL 0x05 */
95 0x00, /* REG_LDOCTL 0x06 */
96 0x60, /* REG_HPPLLCTL 0x07 */
97 0x00, /* REG_LPPLLCTL 0x08 */
98 0x4A, /* REG_LPPLLDIV 0x09 */
99 0x00, /* REG_AMICBCTL 0x0A */
100 0x00, /* REG_DMICBCTL 0x0B */
101 0x00, /* REG_MICLCTL 0x0C */
102 0x00, /* REG_MICRCTL 0x0D */
103 0x00, /* REG_MICGAIN 0x0E */
104 0x1B, /* REG_LINEGAIN 0x0F */
105 0x00, /* REG_HSLCTL 0x10 */
106 0x00, /* REG_HSRCTL 0x11 */
107 0x00, /* REG_HSGAIN 0x12 */
108 0x00, /* REG_EARCTL 0x13 */
109 0x00, /* REG_HFLCTL 0x14 */
110 0x00, /* REG_HFLGAIN 0x15 */
111 0x00, /* REG_HFRCTL 0x16 */
112 0x00, /* REG_HFRGAIN 0x17 */
113 0x00, /* REG_VIBCTLL 0x18 */
114 0x00, /* REG_VIBDATL 0x19 */
115 0x00, /* REG_VIBCTLR 0x1A */
116 0x00, /* REG_VIBDATR 0x1B */
117 0x00, /* REG_HKCTL1 0x1C */
118 0x00, /* REG_HKCTL2 0x1D */
119 0x00, /* REG_GPOCTL 0x1E */
120 0x00, /* REG_ALB 0x1F */
121 0x00, /* REG_DLB 0x20 */
122 0x00, /* not used 0x21 */
123 0x00, /* not used 0x22 */
124 0x00, /* not used 0x23 */
125 0x00, /* not used 0x24 */
126 0x00, /* not used 0x25 */
127 0x00, /* not used 0x26 */
128 0x00, /* not used 0x27 */
129 0x00, /* REG_TRIM1 0x28 */
130 0x00, /* REG_TRIM2 0x29 */
131 0x00, /* REG_TRIM3 0x2A */
132 0x00, /* REG_HSOTRIM 0x2B */
133 0x00, /* REG_HFOTRIM 0x2C */
134 0x09, /* REG_ACCCTL 0x2D */
135 0x00, /* REG_STATUS 0x2E (ro) */
136
137 0x00, /* REG_SW_SHADOW 0x2F - Shadow, non HW register */
138 };
139
140 /* List of registers to be restored after power up */
141 static const int twl6040_restore_list[] = {
142 TWL6040_REG_MICLCTL,
143 TWL6040_REG_MICRCTL,
144 TWL6040_REG_MICGAIN,
145 TWL6040_REG_LINEGAIN,
146 TWL6040_REG_HSLCTL,
147 TWL6040_REG_HSRCTL,
148 TWL6040_REG_HSGAIN,
149 TWL6040_REG_EARCTL,
150 TWL6040_REG_HFLCTL,
151 TWL6040_REG_HFLGAIN,
152 TWL6040_REG_HFRCTL,
153 TWL6040_REG_HFRGAIN,
154 };
155
156 /* set of rates for each pll: low-power and high-performance */
157 static unsigned int lp_rates[] = {
158 8000,
159 11250,
160 16000,
161 22500,
162 32000,
163 44100,
164 48000,
165 88200,
166 96000,
167 };
168
169 static unsigned int hp_rates[] = {
170 8000,
171 16000,
172 32000,
173 48000,
174 96000,
175 };
176
177 static struct snd_pcm_hw_constraint_list sysclk_constraints[] = {
178 { .count = ARRAY_SIZE(lp_rates), .list = lp_rates, },
179 { .count = ARRAY_SIZE(hp_rates), .list = hp_rates, },
180 };
181
182 /*
183 * read twl6040 register cache
184 */
185 static inline unsigned int twl6040_read_reg_cache(struct snd_soc_codec *codec,
186 unsigned int reg)
187 {
188 u8 *cache = codec->reg_cache;
189
190 if (reg >= TWL6040_CACHEREGNUM)
191 return -EIO;
192
193 return cache[reg];
194 }
195
196 /*
197 * write twl6040 register cache
198 */
199 static inline void twl6040_write_reg_cache(struct snd_soc_codec *codec,
200 u8 reg, u8 value)
201 {
202 u8 *cache = codec->reg_cache;
203
204 if (reg >= TWL6040_CACHEREGNUM)
205 return;
206 cache[reg] = value;
207 }
208
209 /*
210 * read from twl6040 hardware register
211 */
212 static int twl6040_read_reg_volatile(struct snd_soc_codec *codec,
213 unsigned int reg)
214 {
215 struct twl6040 *twl6040 = codec->control_data;
216 u8 value;
217
218 if (reg >= TWL6040_CACHEREGNUM)
219 return -EIO;
220
221 if (likely(reg < TWL6040_REG_SW_SHADOW)) {
222 value = twl6040_reg_read(twl6040, reg);
223 twl6040_write_reg_cache(codec, reg, value);
224 } else {
225 value = twl6040_read_reg_cache(codec, reg);
226 }
227
228 return value;
229 }
230
231 /*
232 * write to the twl6040 register space
233 */
234 static int twl6040_write(struct snd_soc_codec *codec,
235 unsigned int reg, unsigned int value)
236 {
237 struct twl6040 *twl6040 = codec->control_data;
238
239 if (reg >= TWL6040_CACHEREGNUM)
240 return -EIO;
241
242 twl6040_write_reg_cache(codec, reg, value);
243 if (likely(reg < TWL6040_REG_SW_SHADOW))
244 return twl6040_reg_write(twl6040, reg, value);
245 else
246 return 0;
247 }
248
249 static void twl6040_init_chip(struct snd_soc_codec *codec)
250 {
251 struct twl6040 *twl6040 = codec->control_data;
252 u8 val;
253
254 /* Update reg_cache: ASICREV, and TRIM values */
255 val = twl6040_get_revid(twl6040);
256 twl6040_write_reg_cache(codec, TWL6040_REG_ASICREV, val);
257
258 twl6040_read_reg_volatile(codec, TWL6040_REG_TRIM1);
259 twl6040_read_reg_volatile(codec, TWL6040_REG_TRIM2);
260 twl6040_read_reg_volatile(codec, TWL6040_REG_TRIM3);
261 twl6040_read_reg_volatile(codec, TWL6040_REG_HSOTRIM);
262 twl6040_read_reg_volatile(codec, TWL6040_REG_HFOTRIM);
263
264 /* Change chip defaults */
265 /* No imput selected for microphone amplifiers */
266 twl6040_write_reg_cache(codec, TWL6040_REG_MICLCTL, 0x18);
267 twl6040_write_reg_cache(codec, TWL6040_REG_MICRCTL, 0x18);
268
269 /*
270 * We need to lower the default gain values, so the ramp code
271 * can work correctly for the first playback.
272 * This reduces the pop noise heard at the first playback.
273 */
274 twl6040_write_reg_cache(codec, TWL6040_REG_HSGAIN, 0xff);
275 twl6040_write_reg_cache(codec, TWL6040_REG_EARCTL, 0x1e);
276 twl6040_write_reg_cache(codec, TWL6040_REG_HFLGAIN, 0x1d);
277 twl6040_write_reg_cache(codec, TWL6040_REG_HFRGAIN, 0x1d);
278 twl6040_write_reg_cache(codec, TWL6040_REG_LINEGAIN, 0);
279 }
280
281 static void twl6040_restore_regs(struct snd_soc_codec *codec)
282 {
283 u8 *cache = codec->reg_cache;
284 int reg, i;
285
286 for (i = 0; i < ARRAY_SIZE(twl6040_restore_list); i++) {
287 reg = twl6040_restore_list[i];
288 twl6040_write(codec, reg, cache[reg]);
289 }
290 }
291
292 /* set headset dac and driver power mode */
293 static int headset_power_mode(struct snd_soc_codec *codec, int high_perf)
294 {
295 int hslctl, hsrctl;
296 int mask = TWL6040_HSDRVMODE | TWL6040_HSDACMODE;
297
298 hslctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSLCTL);
299 hsrctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSRCTL);
300
301 if (high_perf) {
302 hslctl &= ~mask;
303 hsrctl &= ~mask;
304 } else {
305 hslctl |= mask;
306 hsrctl |= mask;
307 }
308
309 twl6040_write(codec, TWL6040_REG_HSLCTL, hslctl);
310 twl6040_write(codec, TWL6040_REG_HSRCTL, hsrctl);
311
312 return 0;
313 }
314
315 static int twl6040_hs_dac_event(struct snd_soc_dapm_widget *w,
316 struct snd_kcontrol *kcontrol, int event)
317 {
318 struct snd_soc_codec *codec = w->codec;
319 u8 hslctl, hsrctl;
320
321 /*
322 * Workaround for Headset DC offset caused pop noise:
323 * Both HS DAC need to be turned on (before the HS driver) and off at
324 * the same time.
325 */
326 hslctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSLCTL);
327 hsrctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSRCTL);
328 if (SND_SOC_DAPM_EVENT_ON(event)) {
329 hslctl |= TWL6040_HSDACENA;
330 hsrctl |= TWL6040_HSDACENA;
331 } else {
332 hslctl &= ~TWL6040_HSDACENA;
333 hsrctl &= ~TWL6040_HSDACENA;
334 }
335 twl6040_write(codec, TWL6040_REG_HSLCTL, hslctl);
336 twl6040_write(codec, TWL6040_REG_HSRCTL, hsrctl);
337
338 msleep(1);
339 return 0;
340 }
341
342 static int twl6040_ep_drv_event(struct snd_soc_dapm_widget *w,
343 struct snd_kcontrol *kcontrol, int event)
344 {
345 struct snd_soc_codec *codec = w->codec;
346 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
347 int ret = 0;
348
349 if (SND_SOC_DAPM_EVENT_ON(event)) {
350 /* Earphone doesn't support low power mode */
351 priv->hs_power_mode_locked = 1;
352 ret = headset_power_mode(codec, 1);
353 } else {
354 priv->hs_power_mode_locked = 0;
355 ret = headset_power_mode(codec, priv->hs_power_mode);
356 }
357
358 msleep(1);
359
360 return ret;
361 }
362
363 static void twl6040_hs_jack_report(struct snd_soc_codec *codec,
364 struct snd_soc_jack *jack, int report)
365 {
366 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
367 int status;
368
369 mutex_lock(&priv->mutex);
370
371 /* Sync status */
372 status = twl6040_read_reg_volatile(codec, TWL6040_REG_STATUS);
373 if (status & TWL6040_PLUGCOMP)
374 snd_soc_jack_report(jack, report, report);
375 else
376 snd_soc_jack_report(jack, 0, report);
377
378 mutex_unlock(&priv->mutex);
379 }
380
381 void twl6040_hs_jack_detect(struct snd_soc_codec *codec,
382 struct snd_soc_jack *jack, int report)
383 {
384 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
385 struct twl6040_jack_data *hs_jack = &priv->hs_jack;
386
387 hs_jack->jack = jack;
388 hs_jack->report = report;
389
390 twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
391 }
392 EXPORT_SYMBOL_GPL(twl6040_hs_jack_detect);
393
394 static void twl6040_accessory_work(struct work_struct *work)
395 {
396 struct twl6040_data *priv = container_of(work,
397 struct twl6040_data, hs_jack.work.work);
398 struct snd_soc_codec *codec = priv->codec;
399 struct twl6040_jack_data *hs_jack = &priv->hs_jack;
400
401 twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
402 }
403
404 /* audio interrupt handler */
405 static irqreturn_t twl6040_audio_handler(int irq, void *data)
406 {
407 struct snd_soc_codec *codec = data;
408 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
409
410 schedule_delayed_work(&priv->hs_jack.work, msecs_to_jiffies(200));
411
412 return IRQ_HANDLED;
413 }
414
415 static int twl6040_soc_dapm_put_vibra_enum(struct snd_kcontrol *kcontrol,
416 struct snd_ctl_elem_value *ucontrol)
417 {
418 struct snd_soc_dapm_widget_list *wlist = snd_kcontrol_chip(kcontrol);
419 struct snd_soc_dapm_widget *widget = wlist->widgets[0];
420 struct snd_soc_codec *codec = widget->codec;
421 struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
422 unsigned int val;
423
424 /* Do not allow changes while Input/FF efect is running */
425 val = twl6040_read_reg_volatile(codec, e->reg);
426 if (val & TWL6040_VIBENA && !(val & TWL6040_VIBSEL))
427 return -EBUSY;
428
429 return snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
430 }
431
432 /*
433 * MICATT volume control:
434 * from -6 to 0 dB in 6 dB steps
435 */
436 static DECLARE_TLV_DB_SCALE(mic_preamp_tlv, -600, 600, 0);
437
438 /*
439 * MICGAIN volume control:
440 * from 6 to 30 dB in 6 dB steps
441 */
442 static DECLARE_TLV_DB_SCALE(mic_amp_tlv, 600, 600, 0);
443
444 /*
445 * AFMGAIN volume control:
446 * from -18 to 24 dB in 6 dB steps
447 */
448 static DECLARE_TLV_DB_SCALE(afm_amp_tlv, -1800, 600, 0);
449
450 /*
451 * HSGAIN volume control:
452 * from -30 to 0 dB in 2 dB steps
453 */
454 static DECLARE_TLV_DB_SCALE(hs_tlv, -3000, 200, 0);
455
456 /*
457 * HFGAIN volume control:
458 * from -52 to 6 dB in 2 dB steps
459 */
460 static DECLARE_TLV_DB_SCALE(hf_tlv, -5200, 200, 0);
461
462 /*
463 * EPGAIN volume control:
464 * from -24 to 6 dB in 2 dB steps
465 */
466 static DECLARE_TLV_DB_SCALE(ep_tlv, -2400, 200, 0);
467
468 /* Left analog microphone selection */
469 static const char *twl6040_amicl_texts[] =
470 {"Headset Mic", "Main Mic", "Aux/FM Left", "Off"};
471
472 /* Right analog microphone selection */
473 static const char *twl6040_amicr_texts[] =
474 {"Headset Mic", "Sub Mic", "Aux/FM Right", "Off"};
475
476 static const struct soc_enum twl6040_enum[] = {
477 SOC_ENUM_SINGLE(TWL6040_REG_MICLCTL, 3, 4, twl6040_amicl_texts),
478 SOC_ENUM_SINGLE(TWL6040_REG_MICRCTL, 3, 4, twl6040_amicr_texts),
479 };
480
481 static const char *twl6040_hs_texts[] = {
482 "Off", "HS DAC", "Line-In amp"
483 };
484
485 static const struct soc_enum twl6040_hs_enum[] = {
486 SOC_ENUM_SINGLE(TWL6040_REG_HSLCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
487 twl6040_hs_texts),
488 SOC_ENUM_SINGLE(TWL6040_REG_HSRCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
489 twl6040_hs_texts),
490 };
491
492 static const char *twl6040_hf_texts[] = {
493 "Off", "HF DAC", "Line-In amp"
494 };
495
496 static const struct soc_enum twl6040_hf_enum[] = {
497 SOC_ENUM_SINGLE(TWL6040_REG_HFLCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
498 twl6040_hf_texts),
499 SOC_ENUM_SINGLE(TWL6040_REG_HFRCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
500 twl6040_hf_texts),
501 };
502
503 static const char *twl6040_vibrapath_texts[] = {
504 "Input FF", "Audio PDM"
505 };
506
507 static const struct soc_enum twl6040_vibra_enum[] = {
508 SOC_ENUM_SINGLE(TWL6040_REG_VIBCTLL, 1,
509 ARRAY_SIZE(twl6040_vibrapath_texts),
510 twl6040_vibrapath_texts),
511 SOC_ENUM_SINGLE(TWL6040_REG_VIBCTLR, 1,
512 ARRAY_SIZE(twl6040_vibrapath_texts),
513 twl6040_vibrapath_texts),
514 };
515
516 static const struct snd_kcontrol_new amicl_control =
517 SOC_DAPM_ENUM("Route", twl6040_enum[0]);
518
519 static const struct snd_kcontrol_new amicr_control =
520 SOC_DAPM_ENUM("Route", twl6040_enum[1]);
521
522 /* Headset DAC playback switches */
523 static const struct snd_kcontrol_new hsl_mux_controls =
524 SOC_DAPM_ENUM("Route", twl6040_hs_enum[0]);
525
526 static const struct snd_kcontrol_new hsr_mux_controls =
527 SOC_DAPM_ENUM("Route", twl6040_hs_enum[1]);
528
529 /* Handsfree DAC playback switches */
530 static const struct snd_kcontrol_new hfl_mux_controls =
531 SOC_DAPM_ENUM("Route", twl6040_hf_enum[0]);
532
533 static const struct snd_kcontrol_new hfr_mux_controls =
534 SOC_DAPM_ENUM("Route", twl6040_hf_enum[1]);
535
536 static const struct snd_kcontrol_new ep_path_enable_control =
537 SOC_DAPM_SINGLE("Switch", TWL6040_REG_SW_SHADOW, 0, 1, 0);
538
539 static const struct snd_kcontrol_new auxl_switch_control =
540 SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFLCTL, 6, 1, 0);
541
542 static const struct snd_kcontrol_new auxr_switch_control =
543 SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFRCTL, 6, 1, 0);
544
545 /* Vibra playback switches */
546 static const struct snd_kcontrol_new vibral_mux_controls =
547 SOC_DAPM_ENUM_EXT("Route", twl6040_vibra_enum[0],
548 snd_soc_dapm_get_enum_double,
549 twl6040_soc_dapm_put_vibra_enum);
550
551 static const struct snd_kcontrol_new vibrar_mux_controls =
552 SOC_DAPM_ENUM_EXT("Route", twl6040_vibra_enum[1],
553 snd_soc_dapm_get_enum_double,
554 twl6040_soc_dapm_put_vibra_enum);
555
556 /* Headset power mode */
557 static const char *twl6040_power_mode_texts[] = {
558 "Low-Power", "High-Performance",
559 };
560
561 static const struct soc_enum twl6040_power_mode_enum =
562 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(twl6040_power_mode_texts),
563 twl6040_power_mode_texts);
564
565 static int twl6040_headset_power_get_enum(struct snd_kcontrol *kcontrol,
566 struct snd_ctl_elem_value *ucontrol)
567 {
568 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
569 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
570
571 ucontrol->value.enumerated.item[0] = priv->hs_power_mode;
572
573 return 0;
574 }
575
576 static int twl6040_headset_power_put_enum(struct snd_kcontrol *kcontrol,
577 struct snd_ctl_elem_value *ucontrol)
578 {
579 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
580 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
581 int high_perf = ucontrol->value.enumerated.item[0];
582 int ret = 0;
583
584 if (!priv->hs_power_mode_locked)
585 ret = headset_power_mode(codec, high_perf);
586
587 if (!ret)
588 priv->hs_power_mode = high_perf;
589
590 return ret;
591 }
592
593 static int twl6040_pll_get_enum(struct snd_kcontrol *kcontrol,
594 struct snd_ctl_elem_value *ucontrol)
595 {
596 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
597 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
598
599 ucontrol->value.enumerated.item[0] = priv->pll_power_mode;
600
601 return 0;
602 }
603
604 static int twl6040_pll_put_enum(struct snd_kcontrol *kcontrol,
605 struct snd_ctl_elem_value *ucontrol)
606 {
607 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
608 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
609
610 priv->pll_power_mode = ucontrol->value.enumerated.item[0];
611
612 return 0;
613 }
614
615 int twl6040_get_dl1_gain(struct snd_soc_codec *codec)
616 {
617 struct snd_soc_dapm_context *dapm = &codec->dapm;
618
619 if (snd_soc_dapm_get_pin_status(dapm, "EP"))
620 return -1; /* -1dB */
621
622 if (snd_soc_dapm_get_pin_status(dapm, "HSOR") ||
623 snd_soc_dapm_get_pin_status(dapm, "HSOL")) {
624
625 u8 val = snd_soc_read(codec, TWL6040_REG_HSLCTL);
626 if (val & TWL6040_HSDACMODE)
627 /* HSDACL in LP mode */
628 return -8; /* -8dB */
629 else
630 /* HSDACL in HP mode */
631 return -1; /* -1dB */
632 }
633 return 0; /* 0dB */
634 }
635 EXPORT_SYMBOL_GPL(twl6040_get_dl1_gain);
636
637 int twl6040_get_clk_id(struct snd_soc_codec *codec)
638 {
639 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
640
641 return priv->pll_power_mode;
642 }
643 EXPORT_SYMBOL_GPL(twl6040_get_clk_id);
644
645 int twl6040_get_trim_value(struct snd_soc_codec *codec, enum twl6040_trim trim)
646 {
647 if (unlikely(trim >= TWL6040_TRIM_INVAL))
648 return -EINVAL;
649
650 return twl6040_read_reg_cache(codec, TWL6040_REG_TRIM1 + trim);
651 }
652 EXPORT_SYMBOL_GPL(twl6040_get_trim_value);
653
654 int twl6040_get_hs_step_size(struct snd_soc_codec *codec)
655 {
656 struct twl6040 *twl6040 = codec->control_data;
657
658 if (twl6040_get_revid(twl6040) < TWL6040_REV_ES1_3)
659 /* For ES under ES_1.3 HS step is 2 mV */
660 return 2;
661 else
662 /* For ES_1.3 HS step is 1 mV */
663 return 1;
664 }
665 EXPORT_SYMBOL_GPL(twl6040_get_hs_step_size);
666
667 static const struct snd_kcontrol_new twl6040_snd_controls[] = {
668 /* Capture gains */
669 SOC_DOUBLE_TLV("Capture Preamplifier Volume",
670 TWL6040_REG_MICGAIN, 6, 7, 1, 1, mic_preamp_tlv),
671 SOC_DOUBLE_TLV("Capture Volume",
672 TWL6040_REG_MICGAIN, 0, 3, 4, 0, mic_amp_tlv),
673
674 /* AFM gains */
675 SOC_DOUBLE_TLV("Aux FM Volume",
676 TWL6040_REG_LINEGAIN, 0, 3, 7, 0, afm_amp_tlv),
677
678 /* Playback gains */
679 SOC_DOUBLE_TLV("Headset Playback Volume",
680 TWL6040_REG_HSGAIN, 0, 4, 0xF, 1, hs_tlv),
681 SOC_DOUBLE_R_TLV("Handsfree Playback Volume",
682 TWL6040_REG_HFLGAIN, TWL6040_REG_HFRGAIN, 0, 0x1D, 1, hf_tlv),
683 SOC_SINGLE_TLV("Earphone Playback Volume",
684 TWL6040_REG_EARCTL, 1, 0xF, 1, ep_tlv),
685
686 SOC_ENUM_EXT("Headset Power Mode", twl6040_power_mode_enum,
687 twl6040_headset_power_get_enum,
688 twl6040_headset_power_put_enum),
689
690 SOC_ENUM_EXT("PLL Selection", twl6040_power_mode_enum,
691 twl6040_pll_get_enum, twl6040_pll_put_enum),
692 };
693
694 static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
695 /* Inputs */
696 SND_SOC_DAPM_INPUT("MAINMIC"),
697 SND_SOC_DAPM_INPUT("HSMIC"),
698 SND_SOC_DAPM_INPUT("SUBMIC"),
699 SND_SOC_DAPM_INPUT("AFML"),
700 SND_SOC_DAPM_INPUT("AFMR"),
701
702 /* Outputs */
703 SND_SOC_DAPM_OUTPUT("HSOL"),
704 SND_SOC_DAPM_OUTPUT("HSOR"),
705 SND_SOC_DAPM_OUTPUT("HFL"),
706 SND_SOC_DAPM_OUTPUT("HFR"),
707 SND_SOC_DAPM_OUTPUT("EP"),
708 SND_SOC_DAPM_OUTPUT("AUXL"),
709 SND_SOC_DAPM_OUTPUT("AUXR"),
710 SND_SOC_DAPM_OUTPUT("VIBRAL"),
711 SND_SOC_DAPM_OUTPUT("VIBRAR"),
712
713 /* Analog input muxes for the capture amplifiers */
714 SND_SOC_DAPM_MUX("Analog Left Capture Route",
715 SND_SOC_NOPM, 0, 0, &amicl_control),
716 SND_SOC_DAPM_MUX("Analog Right Capture Route",
717 SND_SOC_NOPM, 0, 0, &amicr_control),
718
719 /* Analog capture PGAs */
720 SND_SOC_DAPM_PGA("MicAmpL",
721 TWL6040_REG_MICLCTL, 0, 0, NULL, 0),
722 SND_SOC_DAPM_PGA("MicAmpR",
723 TWL6040_REG_MICRCTL, 0, 0, NULL, 0),
724
725 /* Auxiliary FM PGAs */
726 SND_SOC_DAPM_PGA("AFMAmpL",
727 TWL6040_REG_MICLCTL, 1, 0, NULL, 0),
728 SND_SOC_DAPM_PGA("AFMAmpR",
729 TWL6040_REG_MICRCTL, 1, 0, NULL, 0),
730
731 /* ADCs */
732 SND_SOC_DAPM_ADC("ADC Left", NULL, TWL6040_REG_MICLCTL, 2, 0),
733 SND_SOC_DAPM_ADC("ADC Right", NULL, TWL6040_REG_MICRCTL, 2, 0),
734
735 /* Microphone bias */
736 SND_SOC_DAPM_SUPPLY("Headset Mic Bias",
737 TWL6040_REG_AMICBCTL, 0, 0, NULL, 0),
738 SND_SOC_DAPM_SUPPLY("Main Mic Bias",
739 TWL6040_REG_AMICBCTL, 4, 0, NULL, 0),
740 SND_SOC_DAPM_SUPPLY("Digital Mic1 Bias",
741 TWL6040_REG_DMICBCTL, 0, 0, NULL, 0),
742 SND_SOC_DAPM_SUPPLY("Digital Mic2 Bias",
743 TWL6040_REG_DMICBCTL, 4, 0, NULL, 0),
744
745 /* DACs */
746 SND_SOC_DAPM_DAC("HSDAC Left", NULL, SND_SOC_NOPM, 0, 0),
747 SND_SOC_DAPM_DAC("HSDAC Right", NULL, SND_SOC_NOPM, 0, 0),
748 SND_SOC_DAPM_DAC("HFDAC Left", NULL, TWL6040_REG_HFLCTL, 0, 0),
749 SND_SOC_DAPM_DAC("HFDAC Right", NULL, TWL6040_REG_HFRCTL, 0, 0),
750 /* Virtual DAC for vibra path (DL4 channel) */
751 SND_SOC_DAPM_DAC("VIBRA DAC", NULL, SND_SOC_NOPM, 0, 0),
752
753 SND_SOC_DAPM_MUX("Handsfree Left Playback",
754 SND_SOC_NOPM, 0, 0, &hfl_mux_controls),
755 SND_SOC_DAPM_MUX("Handsfree Right Playback",
756 SND_SOC_NOPM, 0, 0, &hfr_mux_controls),
757 /* Analog playback Muxes */
758 SND_SOC_DAPM_MUX("Headset Left Playback",
759 SND_SOC_NOPM, 0, 0, &hsl_mux_controls),
760 SND_SOC_DAPM_MUX("Headset Right Playback",
761 SND_SOC_NOPM, 0, 0, &hsr_mux_controls),
762
763 SND_SOC_DAPM_MUX("Vibra Left Playback", SND_SOC_NOPM, 0, 0,
764 &vibral_mux_controls),
765 SND_SOC_DAPM_MUX("Vibra Right Playback", SND_SOC_NOPM, 0, 0,
766 &vibrar_mux_controls),
767
768 SND_SOC_DAPM_SWITCH("Earphone Playback", SND_SOC_NOPM, 0, 0,
769 &ep_path_enable_control),
770 SND_SOC_DAPM_SWITCH("AUXL Playback", SND_SOC_NOPM, 0, 0,
771 &auxl_switch_control),
772 SND_SOC_DAPM_SWITCH("AUXR Playback", SND_SOC_NOPM, 0, 0,
773 &auxr_switch_control),
774
775 /* Analog playback drivers */
776 SND_SOC_DAPM_OUT_DRV("HF Left Driver",
777 TWL6040_REG_HFLCTL, 4, 0, NULL, 0),
778 SND_SOC_DAPM_OUT_DRV("HF Right Driver",
779 TWL6040_REG_HFRCTL, 4, 0, NULL, 0),
780 SND_SOC_DAPM_OUT_DRV("HS Left Driver",
781 TWL6040_REG_HSLCTL, 2, 0, NULL, 0),
782 SND_SOC_DAPM_OUT_DRV("HS Right Driver",
783 TWL6040_REG_HSRCTL, 2, 0, NULL, 0),
784 SND_SOC_DAPM_OUT_DRV_E("Earphone Driver",
785 TWL6040_REG_EARCTL, 0, 0, NULL, 0,
786 twl6040_ep_drv_event,
787 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
788 SND_SOC_DAPM_OUT_DRV("Vibra Left Driver",
789 TWL6040_REG_VIBCTLL, 0, 0, NULL, 0),
790 SND_SOC_DAPM_OUT_DRV("Vibra Right Driver",
791 TWL6040_REG_VIBCTLR, 0, 0, NULL, 0),
792
793 SND_SOC_DAPM_SUPPLY("Vibra Left Control", TWL6040_REG_VIBCTLL, 2, 0,
794 NULL, 0),
795 SND_SOC_DAPM_SUPPLY("Vibra Right Control", TWL6040_REG_VIBCTLR, 2, 0,
796 NULL, 0),
797 SND_SOC_DAPM_SUPPLY_S("HSDAC Power", 1, SND_SOC_NOPM, 0, 0,
798 twl6040_hs_dac_event,
799 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
800
801 /* Analog playback PGAs */
802 SND_SOC_DAPM_PGA("HF Left PGA",
803 TWL6040_REG_HFLCTL, 1, 0, NULL, 0),
804 SND_SOC_DAPM_PGA("HF Right PGA",
805 TWL6040_REG_HFRCTL, 1, 0, NULL, 0),
806
807 };
808
809 static const struct snd_soc_dapm_route intercon[] = {
810 /* Stream -> DAC mapping */
811 {"HSDAC Left", NULL, "Legacy Playback"},
812 {"HSDAC Left", NULL, "Headset Playback"},
813 {"HSDAC Right", NULL, "Legacy Playback"},
814 {"HSDAC Right", NULL, "Headset Playback"},
815
816 {"HFDAC Left", NULL, "Legacy Playback"},
817 {"HFDAC Left", NULL, "Handsfree Playback"},
818 {"HFDAC Right", NULL, "Legacy Playback"},
819 {"HFDAC Right", NULL, "Handsfree Playback"},
820
821 {"VIBRA DAC", NULL, "Legacy Playback"},
822 {"VIBRA DAC", NULL, "Vibra Playback"},
823
824 /* ADC -> Stream mapping */
825 {"Legacy Capture" , NULL, "ADC Left"},
826 {"Capture", NULL, "ADC Left"},
827 {"Legacy Capture", NULL, "ADC Right"},
828 {"Capture" , NULL, "ADC Right"},
829
830 /* Capture path */
831 {"Analog Left Capture Route", "Headset Mic", "HSMIC"},
832 {"Analog Left Capture Route", "Main Mic", "MAINMIC"},
833 {"Analog Left Capture Route", "Aux/FM Left", "AFML"},
834
835 {"Analog Right Capture Route", "Headset Mic", "HSMIC"},
836 {"Analog Right Capture Route", "Sub Mic", "SUBMIC"},
837 {"Analog Right Capture Route", "Aux/FM Right", "AFMR"},
838
839 {"MicAmpL", NULL, "Analog Left Capture Route"},
840 {"MicAmpR", NULL, "Analog Right Capture Route"},
841
842 {"ADC Left", NULL, "MicAmpL"},
843 {"ADC Right", NULL, "MicAmpR"},
844
845 /* AFM path */
846 {"AFMAmpL", NULL, "AFML"},
847 {"AFMAmpR", NULL, "AFMR"},
848
849 {"HSDAC Left", NULL, "HSDAC Power"},
850 {"HSDAC Right", NULL, "HSDAC Power"},
851
852 {"Headset Left Playback", "HS DAC", "HSDAC Left"},
853 {"Headset Left Playback", "Line-In amp", "AFMAmpL"},
854
855 {"Headset Right Playback", "HS DAC", "HSDAC Right"},
856 {"Headset Right Playback", "Line-In amp", "AFMAmpR"},
857
858 {"HS Left Driver", NULL, "Headset Left Playback"},
859 {"HS Right Driver", NULL, "Headset Right Playback"},
860
861 {"HSOL", NULL, "HS Left Driver"},
862 {"HSOR", NULL, "HS Right Driver"},
863
864 /* Earphone playback path */
865 {"Earphone Playback", "Switch", "HSDAC Left"},
866 {"Earphone Driver", NULL, "Earphone Playback"},
867 {"EP", NULL, "Earphone Driver"},
868
869 {"Handsfree Left Playback", "HF DAC", "HFDAC Left"},
870 {"Handsfree Left Playback", "Line-In amp", "AFMAmpL"},
871
872 {"Handsfree Right Playback", "HF DAC", "HFDAC Right"},
873 {"Handsfree Right Playback", "Line-In amp", "AFMAmpR"},
874
875 {"HF Left PGA", NULL, "Handsfree Left Playback"},
876 {"HF Right PGA", NULL, "Handsfree Right Playback"},
877
878 {"HF Left Driver", NULL, "HF Left PGA"},
879 {"HF Right Driver", NULL, "HF Right PGA"},
880
881 {"HFL", NULL, "HF Left Driver"},
882 {"HFR", NULL, "HF Right Driver"},
883
884 {"AUXL Playback", "Switch", "HF Left PGA"},
885 {"AUXR Playback", "Switch", "HF Right PGA"},
886
887 {"AUXL", NULL, "AUXL Playback"},
888 {"AUXR", NULL, "AUXR Playback"},
889
890 /* Vibrator paths */
891 {"Vibra Left Playback", "Audio PDM", "VIBRA DAC"},
892 {"Vibra Right Playback", "Audio PDM", "VIBRA DAC"},
893
894 {"Vibra Left Driver", NULL, "Vibra Left Playback"},
895 {"Vibra Right Driver", NULL, "Vibra Right Playback"},
896 {"Vibra Left Driver", NULL, "Vibra Left Control"},
897 {"Vibra Right Driver", NULL, "Vibra Right Control"},
898
899 {"VIBRAL", NULL, "Vibra Left Driver"},
900 {"VIBRAR", NULL, "Vibra Right Driver"},
901 };
902
903 static int twl6040_set_bias_level(struct snd_soc_codec *codec,
904 enum snd_soc_bias_level level)
905 {
906 struct twl6040 *twl6040 = codec->control_data;
907 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
908 int ret;
909
910 switch (level) {
911 case SND_SOC_BIAS_ON:
912 break;
913 case SND_SOC_BIAS_PREPARE:
914 break;
915 case SND_SOC_BIAS_STANDBY:
916 if (priv->codec_powered)
917 break;
918
919 ret = twl6040_power(twl6040, 1);
920 if (ret)
921 return ret;
922
923 priv->codec_powered = 1;
924
925 twl6040_restore_regs(codec);
926
927 /* Set external boost GPO */
928 twl6040_write(codec, TWL6040_REG_GPOCTL, 0x02);
929 break;
930 case SND_SOC_BIAS_OFF:
931 if (!priv->codec_powered)
932 break;
933
934 twl6040_power(twl6040, 0);
935 priv->codec_powered = 0;
936 break;
937 }
938
939 codec->dapm.bias_level = level;
940
941 return 0;
942 }
943
944 static int twl6040_startup(struct snd_pcm_substream *substream,
945 struct snd_soc_dai *dai)
946 {
947 struct snd_soc_codec *codec = dai->codec;
948 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
949
950 snd_pcm_hw_constraint_list(substream->runtime, 0,
951 SNDRV_PCM_HW_PARAM_RATE,
952 &sysclk_constraints[priv->pll_power_mode]);
953
954 return 0;
955 }
956
957 static int twl6040_hw_params(struct snd_pcm_substream *substream,
958 struct snd_pcm_hw_params *params,
959 struct snd_soc_dai *dai)
960 {
961 struct snd_soc_codec *codec = dai->codec;
962 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
963 int rate;
964
965 rate = params_rate(params);
966 switch (rate) {
967 case 11250:
968 case 22500:
969 case 44100:
970 case 88200:
971 /* These rates are not supported when HPPLL is in use */
972 if (unlikely(priv->pll == TWL6040_SYSCLK_SEL_HPPLL)) {
973 dev_err(codec->dev, "HPPLL does not support rate %d\n",
974 rate);
975 return -EINVAL;
976 }
977 priv->sysclk = 17640000;
978 break;
979 case 8000:
980 case 16000:
981 case 32000:
982 case 48000:
983 case 96000:
984 priv->sysclk = 19200000;
985 break;
986 default:
987 dev_err(codec->dev, "unsupported rate %d\n", rate);
988 return -EINVAL;
989 }
990
991 return 0;
992 }
993
994 static int twl6040_prepare(struct snd_pcm_substream *substream,
995 struct snd_soc_dai *dai)
996 {
997 struct snd_soc_codec *codec = dai->codec;
998 struct twl6040 *twl6040 = codec->control_data;
999 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1000 int ret;
1001
1002 if (!priv->sysclk) {
1003 dev_err(codec->dev,
1004 "no mclk configured, call set_sysclk() on init\n");
1005 return -EINVAL;
1006 }
1007
1008 ret = twl6040_set_pll(twl6040, priv->pll, priv->clk_in, priv->sysclk);
1009 if (ret) {
1010 dev_err(codec->dev, "Can not set PLL (%d)\n", ret);
1011 return -EPERM;
1012 }
1013
1014 return 0;
1015 }
1016
1017 static int twl6040_set_dai_sysclk(struct snd_soc_dai *codec_dai,
1018 int clk_id, unsigned int freq, int dir)
1019 {
1020 struct snd_soc_codec *codec = codec_dai->codec;
1021 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1022
1023 switch (clk_id) {
1024 case TWL6040_SYSCLK_SEL_LPPLL:
1025 case TWL6040_SYSCLK_SEL_HPPLL:
1026 priv->pll = clk_id;
1027 priv->clk_in = freq;
1028 break;
1029 default:
1030 dev_err(codec->dev, "unknown clk_id %d\n", clk_id);
1031 return -EINVAL;
1032 }
1033
1034 return 0;
1035 }
1036
1037 static const struct snd_soc_dai_ops twl6040_dai_ops = {
1038 .startup = twl6040_startup,
1039 .hw_params = twl6040_hw_params,
1040 .prepare = twl6040_prepare,
1041 .set_sysclk = twl6040_set_dai_sysclk,
1042 };
1043
1044 static struct snd_soc_dai_driver twl6040_dai[] = {
1045 {
1046 .name = "twl6040-legacy",
1047 .id = TWL6040_DAI_LEGACY,
1048 .playback = {
1049 .stream_name = "Legacy Playback",
1050 .channels_min = 1,
1051 .channels_max = 5,
1052 .rates = TWL6040_RATES,
1053 .formats = TWL6040_FORMATS,
1054 },
1055 .capture = {
1056 .stream_name = "Legacy Capture",
1057 .channels_min = 1,
1058 .channels_max = 2,
1059 .rates = TWL6040_RATES,
1060 .formats = TWL6040_FORMATS,
1061 },
1062 .ops = &twl6040_dai_ops,
1063 },
1064 {
1065 .name = "twl6040-ul",
1066 .id = TWL6040_DAI_UL,
1067 .capture = {
1068 .stream_name = "Capture",
1069 .channels_min = 1,
1070 .channels_max = 2,
1071 .rates = TWL6040_RATES,
1072 .formats = TWL6040_FORMATS,
1073 },
1074 .ops = &twl6040_dai_ops,
1075 },
1076 {
1077 .name = "twl6040-dl1",
1078 .id = TWL6040_DAI_DL1,
1079 .playback = {
1080 .stream_name = "Headset Playback",
1081 .channels_min = 1,
1082 .channels_max = 2,
1083 .rates = TWL6040_RATES,
1084 .formats = TWL6040_FORMATS,
1085 },
1086 .ops = &twl6040_dai_ops,
1087 },
1088 {
1089 .name = "twl6040-dl2",
1090 .id = TWL6040_DAI_DL2,
1091 .playback = {
1092 .stream_name = "Handsfree Playback",
1093 .channels_min = 1,
1094 .channels_max = 2,
1095 .rates = TWL6040_RATES,
1096 .formats = TWL6040_FORMATS,
1097 },
1098 .ops = &twl6040_dai_ops,
1099 },
1100 {
1101 .name = "twl6040-vib",
1102 .id = TWL6040_DAI_VIB,
1103 .playback = {
1104 .stream_name = "Vibra Playback",
1105 .channels_min = 1,
1106 .channels_max = 1,
1107 .rates = SNDRV_PCM_RATE_CONTINUOUS,
1108 .formats = TWL6040_FORMATS,
1109 },
1110 .ops = &twl6040_dai_ops,
1111 },
1112 };
1113
1114 #ifdef CONFIG_PM
1115 static int twl6040_suspend(struct snd_soc_codec *codec)
1116 {
1117 twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1118
1119 return 0;
1120 }
1121
1122 static int twl6040_resume(struct snd_soc_codec *codec)
1123 {
1124 twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1125
1126 return 0;
1127 }
1128 #else
1129 #define twl6040_suspend NULL
1130 #define twl6040_resume NULL
1131 #endif
1132
1133 static int twl6040_probe(struct snd_soc_codec *codec)
1134 {
1135 struct twl6040_data *priv;
1136 struct platform_device *pdev = container_of(codec->dev,
1137 struct platform_device, dev);
1138 int ret = 0;
1139
1140 priv = devm_kzalloc(codec->dev, sizeof(*priv), GFP_KERNEL);
1141 if (priv == NULL)
1142 return -ENOMEM;
1143
1144 snd_soc_codec_set_drvdata(codec, priv);
1145
1146 priv->codec = codec;
1147 codec->control_data = dev_get_drvdata(codec->dev->parent);
1148
1149 priv->plug_irq = platform_get_irq(pdev, 0);
1150 if (priv->plug_irq < 0) {
1151 dev_err(codec->dev, "invalid irq\n");
1152 return -EINVAL;
1153 }
1154
1155 INIT_DELAYED_WORK(&priv->hs_jack.work, twl6040_accessory_work);
1156
1157 mutex_init(&priv->mutex);
1158
1159 ret = request_threaded_irq(priv->plug_irq, NULL,
1160 twl6040_audio_handler, IRQF_NO_SUSPEND,
1161 "twl6040_irq_plug", codec);
1162 if (ret) {
1163 dev_err(codec->dev, "PLUG IRQ request failed: %d\n", ret);
1164 return ret;
1165 }
1166
1167 twl6040_init_chip(codec);
1168
1169 /* power on device */
1170 return twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1171 }
1172
1173 static int twl6040_remove(struct snd_soc_codec *codec)
1174 {
1175 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1176
1177 free_irq(priv->plug_irq, codec);
1178 twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1179
1180 return 0;
1181 }
1182
1183 static struct snd_soc_codec_driver soc_codec_dev_twl6040 = {
1184 .probe = twl6040_probe,
1185 .remove = twl6040_remove,
1186 .suspend = twl6040_suspend,
1187 .resume = twl6040_resume,
1188 .read = twl6040_read_reg_cache,
1189 .write = twl6040_write,
1190 .set_bias_level = twl6040_set_bias_level,
1191 .reg_cache_size = ARRAY_SIZE(twl6040_reg),
1192 .reg_word_size = sizeof(u8),
1193 .reg_cache_default = twl6040_reg,
1194 .ignore_pmdown_time = true,
1195
1196 .controls = twl6040_snd_controls,
1197 .num_controls = ARRAY_SIZE(twl6040_snd_controls),
1198 .dapm_widgets = twl6040_dapm_widgets,
1199 .num_dapm_widgets = ARRAY_SIZE(twl6040_dapm_widgets),
1200 .dapm_routes = intercon,
1201 .num_dapm_routes = ARRAY_SIZE(intercon),
1202 };
1203
1204 static int twl6040_codec_probe(struct platform_device *pdev)
1205 {
1206 return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_twl6040,
1207 twl6040_dai, ARRAY_SIZE(twl6040_dai));
1208 }
1209
1210 static int twl6040_codec_remove(struct platform_device *pdev)
1211 {
1212 snd_soc_unregister_codec(&pdev->dev);
1213 return 0;
1214 }
1215
1216 static struct platform_driver twl6040_codec_driver = {
1217 .driver = {
1218 .name = "twl6040-codec",
1219 .owner = THIS_MODULE,
1220 },
1221 .probe = twl6040_codec_probe,
1222 .remove = twl6040_codec_remove,
1223 };
1224
1225 module_platform_driver(twl6040_codec_driver);
1226
1227 MODULE_DESCRIPTION("ASoC TWL6040 codec driver");
1228 MODULE_AUTHOR("Misael Lopez Cruz");
1229 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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