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ASoC: twl6040: Set default gains to minimun value
[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/i2c.h>
28 #include <linux/gpio.h>
29 #include <linux/platform_device.h>
30 #include <linux/slab.h>
31 #include <linux/i2c/twl.h>
32
33 #include <sound/core.h>
34 #include <sound/pcm.h>
35 #include <sound/pcm_params.h>
36 #include <sound/soc.h>
37 #include <sound/initval.h>
38 #include <sound/tlv.h>
39
40 #include "twl6040.h"
41
42 #define TWL6040_RATES SNDRV_PCM_RATE_8000_96000
43 #define TWL6040_FORMATS (SNDRV_PCM_FMTBIT_S32_LE)
44
45 struct twl6040_jack_data {
46 struct snd_soc_jack *jack;
47 int report;
48 };
49
50 /* codec private data */
51 struct twl6040_data {
52 int audpwron;
53 int naudint;
54 int codec_powered;
55 int pll;
56 int non_lp;
57 unsigned int sysclk;
58 struct snd_pcm_hw_constraint_list *sysclk_constraints;
59 struct completion ready;
60 struct twl6040_jack_data hs_jack;
61 struct snd_soc_codec *codec;
62 struct workqueue_struct *workqueue;
63 struct delayed_work delayed_work;
64 struct mutex mutex;
65 };
66
67 /*
68 * twl6040 register cache & default register settings
69 */
70 static const u8 twl6040_reg[TWL6040_CACHEREGNUM] = {
71 0x00, /* not used 0x00 */
72 0x4B, /* TWL6040_ASICID (ro) 0x01 */
73 0x00, /* TWL6040_ASICREV (ro) 0x02 */
74 0x00, /* TWL6040_INTID 0x03 */
75 0x00, /* TWL6040_INTMR 0x04 */
76 0x00, /* TWL6040_NCPCTRL 0x05 */
77 0x00, /* TWL6040_LDOCTL 0x06 */
78 0x60, /* TWL6040_HPPLLCTL 0x07 */
79 0x00, /* TWL6040_LPPLLCTL 0x08 */
80 0x4A, /* TWL6040_LPPLLDIV 0x09 */
81 0x00, /* TWL6040_AMICBCTL 0x0A */
82 0x00, /* TWL6040_DMICBCTL 0x0B */
83 0x18, /* TWL6040_MICLCTL 0x0C - No input selected on Left Mic */
84 0x18, /* TWL6040_MICRCTL 0x0D - No input selected on Right Mic */
85 0x00, /* TWL6040_MICGAIN 0x0E */
86 0x1B, /* TWL6040_LINEGAIN 0x0F */
87 0x00, /* TWL6040_HSLCTL 0x10 */
88 0x00, /* TWL6040_HSRCTL 0x11 */
89 0x00, /* TWL6040_HSGAIN 0x12 */
90 0x00, /* TWL6040_EARCTL 0x13 */
91 0x00, /* TWL6040_HFLCTL 0x14 */
92 0x00, /* TWL6040_HFLGAIN 0x15 */
93 0x00, /* TWL6040_HFRCTL 0x16 */
94 0x00, /* TWL6040_HFRGAIN 0x17 */
95 0x00, /* TWL6040_VIBCTLL 0x18 */
96 0x00, /* TWL6040_VIBDATL 0x19 */
97 0x00, /* TWL6040_VIBCTLR 0x1A */
98 0x00, /* TWL6040_VIBDATR 0x1B */
99 0x00, /* TWL6040_HKCTL1 0x1C */
100 0x00, /* TWL6040_HKCTL2 0x1D */
101 0x00, /* TWL6040_GPOCTL 0x1E */
102 0x00, /* TWL6040_ALB 0x1F */
103 0x00, /* TWL6040_DLB 0x20 */
104 0x00, /* not used 0x21 */
105 0x00, /* not used 0x22 */
106 0x00, /* not used 0x23 */
107 0x00, /* not used 0x24 */
108 0x00, /* not used 0x25 */
109 0x00, /* not used 0x26 */
110 0x00, /* not used 0x27 */
111 0x00, /* TWL6040_TRIM1 0x28 */
112 0x00, /* TWL6040_TRIM2 0x29 */
113 0x00, /* TWL6040_TRIM3 0x2A */
114 0x00, /* TWL6040_HSOTRIM 0x2B */
115 0x00, /* TWL6040_HFOTRIM 0x2C */
116 0x09, /* TWL6040_ACCCTL 0x2D */
117 0x00, /* TWL6040_STATUS (ro) 0x2E */
118 };
119
120 /*
121 * twl6040 vio/gnd registers:
122 * registers under vio/gnd supply can be accessed
123 * before the power-up sequence, after NRESPWRON goes high
124 */
125 static const int twl6040_vio_reg[TWL6040_VIOREGNUM] = {
126 TWL6040_REG_ASICID,
127 TWL6040_REG_ASICREV,
128 TWL6040_REG_INTID,
129 TWL6040_REG_INTMR,
130 TWL6040_REG_NCPCTL,
131 TWL6040_REG_LDOCTL,
132 TWL6040_REG_AMICBCTL,
133 TWL6040_REG_DMICBCTL,
134 TWL6040_REG_HKCTL1,
135 TWL6040_REG_HKCTL2,
136 TWL6040_REG_GPOCTL,
137 TWL6040_REG_TRIM1,
138 TWL6040_REG_TRIM2,
139 TWL6040_REG_TRIM3,
140 TWL6040_REG_HSOTRIM,
141 TWL6040_REG_HFOTRIM,
142 TWL6040_REG_ACCCTL,
143 TWL6040_REG_STATUS,
144 };
145
146 /*
147 * twl6040 vdd/vss registers:
148 * registers under vdd/vss supplies can only be accessed
149 * after the power-up sequence
150 */
151 static const int twl6040_vdd_reg[TWL6040_VDDREGNUM] = {
152 TWL6040_REG_HPPLLCTL,
153 TWL6040_REG_LPPLLCTL,
154 TWL6040_REG_LPPLLDIV,
155 TWL6040_REG_MICLCTL,
156 TWL6040_REG_MICRCTL,
157 TWL6040_REG_MICGAIN,
158 TWL6040_REG_LINEGAIN,
159 TWL6040_REG_HSLCTL,
160 TWL6040_REG_HSRCTL,
161 TWL6040_REG_HSGAIN,
162 TWL6040_REG_EARCTL,
163 TWL6040_REG_HFLCTL,
164 TWL6040_REG_HFLGAIN,
165 TWL6040_REG_HFRCTL,
166 TWL6040_REG_HFRGAIN,
167 TWL6040_REG_VIBCTLL,
168 TWL6040_REG_VIBDATL,
169 TWL6040_REG_VIBCTLR,
170 TWL6040_REG_VIBDATR,
171 TWL6040_REG_ALB,
172 TWL6040_REG_DLB,
173 };
174
175 /*
176 * read twl6040 register cache
177 */
178 static inline unsigned int twl6040_read_reg_cache(struct snd_soc_codec *codec,
179 unsigned int reg)
180 {
181 u8 *cache = codec->reg_cache;
182
183 if (reg >= TWL6040_CACHEREGNUM)
184 return -EIO;
185
186 return cache[reg];
187 }
188
189 /*
190 * write twl6040 register cache
191 */
192 static inline void twl6040_write_reg_cache(struct snd_soc_codec *codec,
193 u8 reg, u8 value)
194 {
195 u8 *cache = codec->reg_cache;
196
197 if (reg >= TWL6040_CACHEREGNUM)
198 return;
199 cache[reg] = value;
200 }
201
202 /*
203 * read from twl6040 hardware register
204 */
205 static int twl6040_read_reg_volatile(struct snd_soc_codec *codec,
206 unsigned int reg)
207 {
208 u8 value;
209
210 if (reg >= TWL6040_CACHEREGNUM)
211 return -EIO;
212
213 twl_i2c_read_u8(TWL_MODULE_AUDIO_VOICE, &value, reg);
214 twl6040_write_reg_cache(codec, reg, value);
215
216 return value;
217 }
218
219 /*
220 * write to the twl6040 register space
221 */
222 static int twl6040_write(struct snd_soc_codec *codec,
223 unsigned int reg, unsigned int value)
224 {
225 if (reg >= TWL6040_CACHEREGNUM)
226 return -EIO;
227
228 twl6040_write_reg_cache(codec, reg, value);
229 return twl_i2c_write_u8(TWL_MODULE_AUDIO_VOICE, value, reg);
230 }
231
232 static void twl6040_init_vio_regs(struct snd_soc_codec *codec)
233 {
234 u8 *cache = codec->reg_cache;
235 int reg, i;
236
237 /* allow registers to be accessed by i2c */
238 twl6040_write(codec, TWL6040_REG_ACCCTL, cache[TWL6040_REG_ACCCTL]);
239
240 for (i = 0; i < TWL6040_VIOREGNUM; i++) {
241 reg = twl6040_vio_reg[i];
242 /* skip read-only registers (ASICID, ASICREV, STATUS) */
243 switch (reg) {
244 case TWL6040_REG_ASICID:
245 case TWL6040_REG_ASICREV:
246 case TWL6040_REG_STATUS:
247 continue;
248 default:
249 break;
250 }
251 twl6040_write(codec, reg, cache[reg]);
252 }
253 }
254
255 static void twl6040_init_vdd_regs(struct snd_soc_codec *codec)
256 {
257 u8 *cache = codec->reg_cache;
258 int reg, i;
259
260 for (i = 0; i < TWL6040_VDDREGNUM; i++) {
261 reg = twl6040_vdd_reg[i];
262 twl6040_write(codec, reg, cache[reg]);
263 }
264 }
265
266 /* twl6040 codec manual power-up sequence */
267 static void twl6040_power_up(struct snd_soc_codec *codec)
268 {
269 u8 ncpctl, ldoctl, lppllctl, accctl;
270
271 ncpctl = twl6040_read_reg_cache(codec, TWL6040_REG_NCPCTL);
272 ldoctl = twl6040_read_reg_cache(codec, TWL6040_REG_LDOCTL);
273 lppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_LPPLLCTL);
274 accctl = twl6040_read_reg_cache(codec, TWL6040_REG_ACCCTL);
275
276 /* enable reference system */
277 ldoctl |= TWL6040_REFENA;
278 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
279 msleep(10);
280 /* enable internal oscillator */
281 ldoctl |= TWL6040_OSCENA;
282 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
283 udelay(10);
284 /* enable high-side ldo */
285 ldoctl |= TWL6040_HSLDOENA;
286 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
287 udelay(244);
288 /* enable negative charge pump */
289 ncpctl |= TWL6040_NCPENA | TWL6040_NCPOPEN;
290 twl6040_write(codec, TWL6040_REG_NCPCTL, ncpctl);
291 udelay(488);
292 /* enable low-side ldo */
293 ldoctl |= TWL6040_LSLDOENA;
294 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
295 udelay(244);
296 /* enable low-power pll */
297 lppllctl |= TWL6040_LPLLENA;
298 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
299 /* reset state machine */
300 accctl |= TWL6040_RESETSPLIT;
301 twl6040_write(codec, TWL6040_REG_ACCCTL, accctl);
302 mdelay(5);
303 accctl &= ~TWL6040_RESETSPLIT;
304 twl6040_write(codec, TWL6040_REG_ACCCTL, accctl);
305 /* disable internal oscillator */
306 ldoctl &= ~TWL6040_OSCENA;
307 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
308 }
309
310 /* twl6040 codec manual power-down sequence */
311 static void twl6040_power_down(struct snd_soc_codec *codec)
312 {
313 u8 ncpctl, ldoctl, lppllctl, accctl;
314
315 ncpctl = twl6040_read_reg_cache(codec, TWL6040_REG_NCPCTL);
316 ldoctl = twl6040_read_reg_cache(codec, TWL6040_REG_LDOCTL);
317 lppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_LPPLLCTL);
318 accctl = twl6040_read_reg_cache(codec, TWL6040_REG_ACCCTL);
319
320 /* enable internal oscillator */
321 ldoctl |= TWL6040_OSCENA;
322 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
323 udelay(10);
324 /* disable low-power pll */
325 lppllctl &= ~TWL6040_LPLLENA;
326 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
327 /* disable low-side ldo */
328 ldoctl &= ~TWL6040_LSLDOENA;
329 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
330 udelay(244);
331 /* disable negative charge pump */
332 ncpctl &= ~(TWL6040_NCPENA | TWL6040_NCPOPEN);
333 twl6040_write(codec, TWL6040_REG_NCPCTL, ncpctl);
334 udelay(488);
335 /* disable high-side ldo */
336 ldoctl &= ~TWL6040_HSLDOENA;
337 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
338 udelay(244);
339 /* disable internal oscillator */
340 ldoctl &= ~TWL6040_OSCENA;
341 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
342 /* disable reference system */
343 ldoctl &= ~TWL6040_REFENA;
344 twl6040_write(codec, TWL6040_REG_LDOCTL, ldoctl);
345 msleep(10);
346 }
347
348 /* set headset dac and driver power mode */
349 static int headset_power_mode(struct snd_soc_codec *codec, int high_perf)
350 {
351 int hslctl, hsrctl;
352 int mask = TWL6040_HSDRVMODEL | TWL6040_HSDACMODEL;
353
354 hslctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSLCTL);
355 hsrctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSRCTL);
356
357 if (high_perf) {
358 hslctl &= ~mask;
359 hsrctl &= ~mask;
360 } else {
361 hslctl |= mask;
362 hsrctl |= mask;
363 }
364
365 twl6040_write(codec, TWL6040_REG_HSLCTL, hslctl);
366 twl6040_write(codec, TWL6040_REG_HSRCTL, hsrctl);
367
368 return 0;
369 }
370
371 static int twl6040_hs_dac_event(struct snd_soc_dapm_widget *w,
372 struct snd_kcontrol *kcontrol, int event)
373 {
374 msleep(1);
375 return 0;
376 }
377
378 static int twl6040_power_mode_event(struct snd_soc_dapm_widget *w,
379 struct snd_kcontrol *kcontrol, int event)
380 {
381 struct snd_soc_codec *codec = w->codec;
382 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
383
384 if (SND_SOC_DAPM_EVENT_ON(event))
385 priv->non_lp++;
386 else
387 priv->non_lp--;
388
389 msleep(1);
390
391 return 0;
392 }
393
394 void twl6040_hs_jack_report(struct snd_soc_codec *codec,
395 struct snd_soc_jack *jack, int report)
396 {
397 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
398 int status;
399
400 mutex_lock(&priv->mutex);
401
402 /* Sync status */
403 status = twl6040_read_reg_volatile(codec, TWL6040_REG_STATUS);
404 if (status & TWL6040_PLUGCOMP)
405 snd_soc_jack_report(jack, report, report);
406 else
407 snd_soc_jack_report(jack, 0, report);
408
409 mutex_unlock(&priv->mutex);
410 }
411
412 void twl6040_hs_jack_detect(struct snd_soc_codec *codec,
413 struct snd_soc_jack *jack, int report)
414 {
415 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
416 struct twl6040_jack_data *hs_jack = &priv->hs_jack;
417
418 hs_jack->jack = jack;
419 hs_jack->report = report;
420
421 twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
422 }
423 EXPORT_SYMBOL_GPL(twl6040_hs_jack_detect);
424
425 static void twl6040_accessory_work(struct work_struct *work)
426 {
427 struct twl6040_data *priv = container_of(work,
428 struct twl6040_data, delayed_work.work);
429 struct snd_soc_codec *codec = priv->codec;
430 struct twl6040_jack_data *hs_jack = &priv->hs_jack;
431
432 twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
433 }
434
435 /* audio interrupt handler */
436 static irqreturn_t twl6040_naudint_handler(int irq, void *data)
437 {
438 struct snd_soc_codec *codec = data;
439 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
440 u8 intid;
441
442 twl_i2c_read_u8(TWL_MODULE_AUDIO_VOICE, &intid, TWL6040_REG_INTID);
443
444 if (intid & TWL6040_THINT)
445 dev_alert(codec->dev, "die temp over-limit detection\n");
446
447 if ((intid & TWL6040_PLUGINT) || (intid & TWL6040_UNPLUGINT))
448 queue_delayed_work(priv->workqueue, &priv->delayed_work,
449 msecs_to_jiffies(200));
450
451 if (intid & TWL6040_HOOKINT)
452 dev_info(codec->dev, "hook detection\n");
453
454 if (intid & TWL6040_HFINT)
455 dev_alert(codec->dev, "hf drivers over current detection\n");
456
457 if (intid & TWL6040_VIBINT)
458 dev_alert(codec->dev, "vib drivers over current detection\n");
459
460 if (intid & TWL6040_READYINT)
461 complete(&priv->ready);
462
463 return IRQ_HANDLED;
464 }
465
466 /*
467 * MICATT volume control:
468 * from -6 to 0 dB in 6 dB steps
469 */
470 static DECLARE_TLV_DB_SCALE(mic_preamp_tlv, -600, 600, 0);
471
472 /*
473 * MICGAIN volume control:
474 * from -6 to 30 dB in 6 dB steps
475 */
476 static DECLARE_TLV_DB_SCALE(mic_amp_tlv, -600, 600, 0);
477
478 /*
479 * AFMGAIN volume control:
480 * from 18 to 24 dB in 6 dB steps
481 */
482 static DECLARE_TLV_DB_SCALE(afm_amp_tlv, 1800, 600, 0);
483
484 /*
485 * HSGAIN volume control:
486 * from -30 to 0 dB in 2 dB steps
487 */
488 static DECLARE_TLV_DB_SCALE(hs_tlv, -3000, 200, 0);
489
490 /*
491 * HFGAIN volume control:
492 * from -52 to 6 dB in 2 dB steps
493 */
494 static DECLARE_TLV_DB_SCALE(hf_tlv, -5200, 200, 0);
495
496 /*
497 * EPGAIN volume control:
498 * from -24 to 6 dB in 2 dB steps
499 */
500 static DECLARE_TLV_DB_SCALE(ep_tlv, -2400, 200, 0);
501
502 /* Left analog microphone selection */
503 static const char *twl6040_amicl_texts[] =
504 {"Headset Mic", "Main Mic", "Aux/FM Left", "Off"};
505
506 /* Right analog microphone selection */
507 static const char *twl6040_amicr_texts[] =
508 {"Headset Mic", "Sub Mic", "Aux/FM Right", "Off"};
509
510 static const struct soc_enum twl6040_enum[] = {
511 SOC_ENUM_SINGLE(TWL6040_REG_MICLCTL, 3, 4, twl6040_amicl_texts),
512 SOC_ENUM_SINGLE(TWL6040_REG_MICRCTL, 3, 4, twl6040_amicr_texts),
513 };
514
515 static const char *twl6040_hs_texts[] = {
516 "Off", "HS DAC", "Line-In amp"
517 };
518
519 static const struct soc_enum twl6040_hs_enum[] = {
520 SOC_ENUM_SINGLE(TWL6040_REG_HSLCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
521 twl6040_hs_texts),
522 SOC_ENUM_SINGLE(TWL6040_REG_HSRCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
523 twl6040_hs_texts),
524 };
525
526 static const char *twl6040_hf_texts[] = {
527 "Off", "HF DAC", "Line-In amp"
528 };
529
530 static const struct soc_enum twl6040_hf_enum[] = {
531 SOC_ENUM_SINGLE(TWL6040_REG_HFLCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
532 twl6040_hf_texts),
533 SOC_ENUM_SINGLE(TWL6040_REG_HFRCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
534 twl6040_hf_texts),
535 };
536
537 static const struct snd_kcontrol_new amicl_control =
538 SOC_DAPM_ENUM("Route", twl6040_enum[0]);
539
540 static const struct snd_kcontrol_new amicr_control =
541 SOC_DAPM_ENUM("Route", twl6040_enum[1]);
542
543 /* Headset DAC playback switches */
544 static const struct snd_kcontrol_new hsl_mux_controls =
545 SOC_DAPM_ENUM("Route", twl6040_hs_enum[0]);
546
547 static const struct snd_kcontrol_new hsr_mux_controls =
548 SOC_DAPM_ENUM("Route", twl6040_hs_enum[1]);
549
550 /* Handsfree DAC playback switches */
551 static const struct snd_kcontrol_new hfl_mux_controls =
552 SOC_DAPM_ENUM("Route", twl6040_hf_enum[0]);
553
554 static const struct snd_kcontrol_new hfr_mux_controls =
555 SOC_DAPM_ENUM("Route", twl6040_hf_enum[1]);
556
557 static const struct snd_kcontrol_new ep_driver_switch_controls =
558 SOC_DAPM_SINGLE("Switch", TWL6040_REG_EARCTL, 0, 1, 0);
559
560 static const struct snd_kcontrol_new twl6040_snd_controls[] = {
561 /* Capture gains */
562 SOC_DOUBLE_TLV("Capture Preamplifier Volume",
563 TWL6040_REG_MICGAIN, 6, 7, 1, 1, mic_preamp_tlv),
564 SOC_DOUBLE_TLV("Capture Volume",
565 TWL6040_REG_MICGAIN, 0, 3, 4, 0, mic_amp_tlv),
566
567 /* AFM gains */
568 SOC_DOUBLE_TLV("Aux FM Volume",
569 TWL6040_REG_LINEGAIN, 0, 4, 0xF, 0, afm_amp_tlv),
570
571 /* Playback gains */
572 SOC_DOUBLE_TLV("Headset Playback Volume",
573 TWL6040_REG_HSGAIN, 0, 4, 0xF, 1, hs_tlv),
574 SOC_DOUBLE_R_TLV("Handsfree Playback Volume",
575 TWL6040_REG_HFLGAIN, TWL6040_REG_HFRGAIN, 0, 0x1D, 1, hf_tlv),
576 SOC_SINGLE_TLV("Earphone Playback Volume",
577 TWL6040_REG_EARCTL, 1, 0xF, 1, ep_tlv),
578 };
579
580 static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
581 /* Inputs */
582 SND_SOC_DAPM_INPUT("MAINMIC"),
583 SND_SOC_DAPM_INPUT("HSMIC"),
584 SND_SOC_DAPM_INPUT("SUBMIC"),
585 SND_SOC_DAPM_INPUT("AFML"),
586 SND_SOC_DAPM_INPUT("AFMR"),
587
588 /* Outputs */
589 SND_SOC_DAPM_OUTPUT("HSOL"),
590 SND_SOC_DAPM_OUTPUT("HSOR"),
591 SND_SOC_DAPM_OUTPUT("HFL"),
592 SND_SOC_DAPM_OUTPUT("HFR"),
593 SND_SOC_DAPM_OUTPUT("EP"),
594
595 /* Analog input muxes for the capture amplifiers */
596 SND_SOC_DAPM_MUX("Analog Left Capture Route",
597 SND_SOC_NOPM, 0, 0, &amicl_control),
598 SND_SOC_DAPM_MUX("Analog Right Capture Route",
599 SND_SOC_NOPM, 0, 0, &amicr_control),
600
601 /* Analog capture PGAs */
602 SND_SOC_DAPM_PGA("MicAmpL",
603 TWL6040_REG_MICLCTL, 0, 0, NULL, 0),
604 SND_SOC_DAPM_PGA("MicAmpR",
605 TWL6040_REG_MICRCTL, 0, 0, NULL, 0),
606
607 /* Auxiliary FM PGAs */
608 SND_SOC_DAPM_PGA("AFMAmpL",
609 TWL6040_REG_MICLCTL, 1, 0, NULL, 0),
610 SND_SOC_DAPM_PGA("AFMAmpR",
611 TWL6040_REG_MICRCTL, 1, 0, NULL, 0),
612
613 /* ADCs */
614 SND_SOC_DAPM_ADC("ADC Left", "Left Front Capture",
615 TWL6040_REG_MICLCTL, 2, 0),
616 SND_SOC_DAPM_ADC("ADC Right", "Right Front Capture",
617 TWL6040_REG_MICRCTL, 2, 0),
618
619 /* Microphone bias */
620 SND_SOC_DAPM_MICBIAS("Headset Mic Bias",
621 TWL6040_REG_AMICBCTL, 0, 0),
622 SND_SOC_DAPM_MICBIAS("Main Mic Bias",
623 TWL6040_REG_AMICBCTL, 4, 0),
624 SND_SOC_DAPM_MICBIAS("Digital Mic1 Bias",
625 TWL6040_REG_DMICBCTL, 0, 0),
626 SND_SOC_DAPM_MICBIAS("Digital Mic2 Bias",
627 TWL6040_REG_DMICBCTL, 4, 0),
628
629 /* DACs */
630 SND_SOC_DAPM_DAC_E("HSDAC Left", "Headset Playback",
631 TWL6040_REG_HSLCTL, 0, 0,
632 twl6040_hs_dac_event,
633 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
634 SND_SOC_DAPM_DAC_E("HSDAC Right", "Headset Playback",
635 TWL6040_REG_HSRCTL, 0, 0,
636 twl6040_hs_dac_event,
637 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
638 SND_SOC_DAPM_DAC_E("HFDAC Left", "Handsfree Playback",
639 TWL6040_REG_HFLCTL, 0, 0,
640 twl6040_power_mode_event,
641 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
642 SND_SOC_DAPM_DAC_E("HFDAC Right", "Handsfree Playback",
643 TWL6040_REG_HFRCTL, 0, 0,
644 twl6040_power_mode_event,
645 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
646
647 SND_SOC_DAPM_MUX("HF Left Playback",
648 SND_SOC_NOPM, 0, 0, &hfl_mux_controls),
649 SND_SOC_DAPM_MUX("HF Right Playback",
650 SND_SOC_NOPM, 0, 0, &hfr_mux_controls),
651 /* Analog playback Muxes */
652 SND_SOC_DAPM_MUX("HS Left Playback",
653 SND_SOC_NOPM, 0, 0, &hsl_mux_controls),
654 SND_SOC_DAPM_MUX("HS Right Playback",
655 SND_SOC_NOPM, 0, 0, &hsr_mux_controls),
656
657 /* Analog playback drivers */
658 SND_SOC_DAPM_PGA_E("Handsfree Left Driver",
659 TWL6040_REG_HFLCTL, 4, 0, NULL, 0,
660 twl6040_power_mode_event,
661 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
662 SND_SOC_DAPM_PGA_E("Handsfree Right Driver",
663 TWL6040_REG_HFRCTL, 4, 0, NULL, 0,
664 twl6040_power_mode_event,
665 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
666 SND_SOC_DAPM_PGA("Headset Left Driver",
667 TWL6040_REG_HSLCTL, 2, 0, NULL, 0),
668 SND_SOC_DAPM_PGA("Headset Right Driver",
669 TWL6040_REG_HSRCTL, 2, 0, NULL, 0),
670 SND_SOC_DAPM_SWITCH_E("Earphone Driver",
671 SND_SOC_NOPM, 0, 0, &ep_driver_switch_controls,
672 twl6040_power_mode_event,
673 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
674
675 /* Analog playback PGAs */
676 SND_SOC_DAPM_PGA("HFDAC Left PGA",
677 TWL6040_REG_HFLCTL, 1, 0, NULL, 0),
678 SND_SOC_DAPM_PGA("HFDAC Right PGA",
679 TWL6040_REG_HFRCTL, 1, 0, NULL, 0),
680
681 };
682
683 static const struct snd_soc_dapm_route intercon[] = {
684 /* Capture path */
685 {"Analog Left Capture Route", "Headset Mic", "HSMIC"},
686 {"Analog Left Capture Route", "Main Mic", "MAINMIC"},
687 {"Analog Left Capture Route", "Aux/FM Left", "AFML"},
688
689 {"Analog Right Capture Route", "Headset Mic", "HSMIC"},
690 {"Analog Right Capture Route", "Sub Mic", "SUBMIC"},
691 {"Analog Right Capture Route", "Aux/FM Right", "AFMR"},
692
693 {"MicAmpL", NULL, "Analog Left Capture Route"},
694 {"MicAmpR", NULL, "Analog Right Capture Route"},
695
696 {"ADC Left", NULL, "MicAmpL"},
697 {"ADC Right", NULL, "MicAmpR"},
698
699 /* AFM path */
700 {"AFMAmpL", "NULL", "AFML"},
701 {"AFMAmpR", "NULL", "AFMR"},
702
703 {"HS Left Playback", "HS DAC", "HSDAC Left"},
704 {"HS Left Playback", "Line-In amp", "AFMAmpL"},
705
706 {"HS Right Playback", "HS DAC", "HSDAC Right"},
707 {"HS Right Playback", "Line-In amp", "AFMAmpR"},
708
709 {"Headset Left Driver", "NULL", "HS Left Playback"},
710 {"Headset Right Driver", "NULL", "HS Right Playback"},
711
712 {"HSOL", NULL, "Headset Left Driver"},
713 {"HSOR", NULL, "Headset Right Driver"},
714
715 /* Earphone playback path */
716 {"Earphone Driver", "Switch", "HSDAC Left"},
717 {"EP", NULL, "Earphone Driver"},
718
719 {"HF Left Playback", "HF DAC", "HFDAC Left"},
720 {"HF Left Playback", "Line-In amp", "AFMAmpL"},
721
722 {"HF Right Playback", "HF DAC", "HFDAC Right"},
723 {"HF Right Playback", "Line-In amp", "AFMAmpR"},
724
725 {"HFDAC Left PGA", NULL, "HF Left Playback"},
726 {"HFDAC Right PGA", NULL, "HF Right Playback"},
727
728 {"Handsfree Left Driver", "Switch", "HFDAC Left PGA"},
729 {"Handsfree Right Driver", "Switch", "HFDAC Right PGA"},
730
731 {"HFL", NULL, "Handsfree Left Driver"},
732 {"HFR", NULL, "Handsfree Right Driver"},
733 };
734
735 static int twl6040_add_widgets(struct snd_soc_codec *codec)
736 {
737 struct snd_soc_dapm_context *dapm = &codec->dapm;
738
739 snd_soc_dapm_new_controls(dapm, twl6040_dapm_widgets,
740 ARRAY_SIZE(twl6040_dapm_widgets));
741 snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon));
742 snd_soc_dapm_new_widgets(dapm);
743
744 return 0;
745 }
746
747 static int twl6040_power_up_completion(struct snd_soc_codec *codec,
748 int naudint)
749 {
750 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
751 int time_left;
752 u8 intid;
753
754 time_left = wait_for_completion_timeout(&priv->ready,
755 msecs_to_jiffies(144));
756
757 if (!time_left) {
758 twl_i2c_read_u8(TWL_MODULE_AUDIO_VOICE, &intid,
759 TWL6040_REG_INTID);
760 if (!(intid & TWL6040_READYINT)) {
761 dev_err(codec->dev, "timeout waiting for READYINT\n");
762 return -ETIMEDOUT;
763 }
764 }
765
766 priv->codec_powered = 1;
767
768 return 0;
769 }
770
771 static int twl6040_set_bias_level(struct snd_soc_codec *codec,
772 enum snd_soc_bias_level level)
773 {
774 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
775 int audpwron = priv->audpwron;
776 int naudint = priv->naudint;
777 int ret;
778
779 switch (level) {
780 case SND_SOC_BIAS_ON:
781 break;
782 case SND_SOC_BIAS_PREPARE:
783 break;
784 case SND_SOC_BIAS_STANDBY:
785 if (priv->codec_powered)
786 break;
787
788 if (gpio_is_valid(audpwron)) {
789 /* use AUDPWRON line */
790 gpio_set_value(audpwron, 1);
791
792 /* wait for power-up completion */
793 ret = twl6040_power_up_completion(codec, naudint);
794 if (ret)
795 return ret;
796
797 /* sync registers updated during power-up sequence */
798 twl6040_read_reg_volatile(codec, TWL6040_REG_NCPCTL);
799 twl6040_read_reg_volatile(codec, TWL6040_REG_LDOCTL);
800 twl6040_read_reg_volatile(codec, TWL6040_REG_LPPLLCTL);
801 } else {
802 /* use manual power-up sequence */
803 twl6040_power_up(codec);
804 priv->codec_powered = 1;
805 }
806
807 /* initialize vdd/vss registers with reg_cache */
808 twl6040_init_vdd_regs(codec);
809
810 /* Set external boost GPO */
811 twl6040_write(codec, TWL6040_REG_GPOCTL, 0x02);
812
813 /* Set initial minimal gain values */
814 twl6040_write(codec, TWL6040_REG_HSGAIN, 0xFF);
815 twl6040_write(codec, TWL6040_REG_EARCTL, 0x1E);
816 twl6040_write(codec, TWL6040_REG_HFLGAIN, 0x1D);
817 twl6040_write(codec, TWL6040_REG_HFRGAIN, 0x1D);
818 break;
819 case SND_SOC_BIAS_OFF:
820 if (!priv->codec_powered)
821 break;
822
823 if (gpio_is_valid(audpwron)) {
824 /* use AUDPWRON line */
825 gpio_set_value(audpwron, 0);
826
827 /* power-down sequence latency */
828 udelay(500);
829
830 /* sync registers updated during power-down sequence */
831 twl6040_read_reg_volatile(codec, TWL6040_REG_NCPCTL);
832 twl6040_read_reg_volatile(codec, TWL6040_REG_LDOCTL);
833 twl6040_write_reg_cache(codec, TWL6040_REG_LPPLLCTL,
834 0x00);
835 } else {
836 /* use manual power-down sequence */
837 twl6040_power_down(codec);
838 }
839
840 priv->codec_powered = 0;
841 break;
842 }
843
844 codec->dapm.bias_level = level;
845
846 return 0;
847 }
848
849 /* set of rates for each pll: low-power and high-performance */
850
851 static unsigned int lp_rates[] = {
852 88200,
853 96000,
854 };
855
856 static struct snd_pcm_hw_constraint_list lp_constraints = {
857 .count = ARRAY_SIZE(lp_rates),
858 .list = lp_rates,
859 };
860
861 static unsigned int hp_rates[] = {
862 96000,
863 };
864
865 static struct snd_pcm_hw_constraint_list hp_constraints = {
866 .count = ARRAY_SIZE(hp_rates),
867 .list = hp_rates,
868 };
869
870 static int twl6040_startup(struct snd_pcm_substream *substream,
871 struct snd_soc_dai *dai)
872 {
873 struct snd_soc_pcm_runtime *rtd = substream->private_data;
874 struct snd_soc_codec *codec = rtd->codec;
875 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
876
877 snd_pcm_hw_constraint_list(substream->runtime, 0,
878 SNDRV_PCM_HW_PARAM_RATE,
879 priv->sysclk_constraints);
880
881 return 0;
882 }
883
884 static int twl6040_hw_params(struct snd_pcm_substream *substream,
885 struct snd_pcm_hw_params *params,
886 struct snd_soc_dai *dai)
887 {
888 struct snd_soc_pcm_runtime *rtd = substream->private_data;
889 struct snd_soc_codec *codec = rtd->codec;
890 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
891 u8 lppllctl;
892 int rate;
893
894 /* nothing to do for high-perf pll, it supports only 48 kHz */
895 if (priv->pll == TWL6040_HPPLL_ID)
896 return 0;
897
898 lppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_LPPLLCTL);
899
900 rate = params_rate(params);
901 switch (rate) {
902 case 11250:
903 case 22500:
904 case 44100:
905 case 88200:
906 lppllctl |= TWL6040_LPLLFIN;
907 priv->sysclk = 17640000;
908 break;
909 case 8000:
910 case 16000:
911 case 32000:
912 case 48000:
913 case 96000:
914 lppllctl &= ~TWL6040_LPLLFIN;
915 priv->sysclk = 19200000;
916 break;
917 default:
918 dev_err(codec->dev, "unsupported rate %d\n", rate);
919 return -EINVAL;
920 }
921
922 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
923
924 return 0;
925 }
926
927 static int twl6040_prepare(struct snd_pcm_substream *substream,
928 struct snd_soc_dai *dai)
929 {
930 struct snd_soc_pcm_runtime *rtd = substream->private_data;
931 struct snd_soc_codec *codec = rtd->codec;
932 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
933
934 if (!priv->sysclk) {
935 dev_err(codec->dev,
936 "no mclk configured, call set_sysclk() on init\n");
937 return -EINVAL;
938 }
939
940 /*
941 * capture is not supported at 17.64 MHz,
942 * it's reserved for headset low-power playback scenario
943 */
944 if ((priv->sysclk == 17640000) &&
945 substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
946 dev_err(codec->dev,
947 "capture mode is not supported at %dHz\n",
948 priv->sysclk);
949 return -EINVAL;
950 }
951
952 if ((priv->sysclk == 17640000) && priv->non_lp) {
953 dev_err(codec->dev,
954 "some enabled paths aren't supported at %dHz\n",
955 priv->sysclk);
956 return -EPERM;
957 }
958 return 0;
959 }
960
961 static int twl6040_set_dai_sysclk(struct snd_soc_dai *codec_dai,
962 int clk_id, unsigned int freq, int dir)
963 {
964 struct snd_soc_codec *codec = codec_dai->codec;
965 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
966 u8 hppllctl, lppllctl;
967
968 hppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_HPPLLCTL);
969 lppllctl = twl6040_read_reg_cache(codec, TWL6040_REG_LPPLLCTL);
970
971 switch (clk_id) {
972 case TWL6040_SYSCLK_SEL_LPPLL:
973 switch (freq) {
974 case 32768:
975 /* headset dac and driver must be in low-power mode */
976 headset_power_mode(codec, 0);
977
978 /* clk32k input requires low-power pll */
979 lppllctl |= TWL6040_LPLLENA;
980 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
981 mdelay(5);
982 lppllctl &= ~TWL6040_HPLLSEL;
983 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
984 hppllctl &= ~TWL6040_HPLLENA;
985 twl6040_write(codec, TWL6040_REG_HPPLLCTL, hppllctl);
986 break;
987 default:
988 dev_err(codec->dev, "unknown mclk freq %d\n", freq);
989 return -EINVAL;
990 }
991
992 /* lppll divider */
993 switch (priv->sysclk) {
994 case 17640000:
995 lppllctl |= TWL6040_LPLLFIN;
996 break;
997 case 19200000:
998 lppllctl &= ~TWL6040_LPLLFIN;
999 break;
1000 default:
1001 /* sysclk not yet configured */
1002 lppllctl &= ~TWL6040_LPLLFIN;
1003 priv->sysclk = 19200000;
1004 break;
1005 }
1006
1007 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
1008
1009 priv->pll = TWL6040_LPPLL_ID;
1010 priv->sysclk_constraints = &lp_constraints;
1011 break;
1012 case TWL6040_SYSCLK_SEL_HPPLL:
1013 hppllctl &= ~TWL6040_MCLK_MSK;
1014
1015 switch (freq) {
1016 case 12000000:
1017 /* mclk input, pll enabled */
1018 hppllctl |= TWL6040_MCLK_12000KHZ |
1019 TWL6040_HPLLSQRBP |
1020 TWL6040_HPLLENA;
1021 break;
1022 case 19200000:
1023 /* mclk input, pll disabled */
1024 hppllctl |= TWL6040_MCLK_19200KHZ |
1025 TWL6040_HPLLSQRENA |
1026 TWL6040_HPLLBP;
1027 break;
1028 case 26000000:
1029 /* mclk input, pll enabled */
1030 hppllctl |= TWL6040_MCLK_26000KHZ |
1031 TWL6040_HPLLSQRBP |
1032 TWL6040_HPLLENA;
1033 break;
1034 case 38400000:
1035 /* clk slicer, pll disabled */
1036 hppllctl |= TWL6040_MCLK_38400KHZ |
1037 TWL6040_HPLLSQRENA |
1038 TWL6040_HPLLBP;
1039 break;
1040 default:
1041 dev_err(codec->dev, "unknown mclk freq %d\n", freq);
1042 return -EINVAL;
1043 }
1044
1045 /* headset dac and driver must be in high-performance mode */
1046 headset_power_mode(codec, 1);
1047
1048 twl6040_write(codec, TWL6040_REG_HPPLLCTL, hppllctl);
1049 udelay(500);
1050 lppllctl |= TWL6040_HPLLSEL;
1051 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
1052 lppllctl &= ~TWL6040_LPLLENA;
1053 twl6040_write(codec, TWL6040_REG_LPPLLCTL, lppllctl);
1054
1055 /* high-performance pll can provide only 19.2 MHz */
1056 priv->pll = TWL6040_HPPLL_ID;
1057 priv->sysclk = 19200000;
1058 priv->sysclk_constraints = &hp_constraints;
1059 break;
1060 default:
1061 dev_err(codec->dev, "unknown clk_id %d\n", clk_id);
1062 return -EINVAL;
1063 }
1064
1065 return 0;
1066 }
1067
1068 static struct snd_soc_dai_ops twl6040_dai_ops = {
1069 .startup = twl6040_startup,
1070 .hw_params = twl6040_hw_params,
1071 .prepare = twl6040_prepare,
1072 .set_sysclk = twl6040_set_dai_sysclk,
1073 };
1074
1075 static struct snd_soc_dai_driver twl6040_dai = {
1076 .name = "twl6040-hifi",
1077 .playback = {
1078 .stream_name = "Playback",
1079 .channels_min = 1,
1080 .channels_max = 4,
1081 .rates = TWL6040_RATES,
1082 .formats = TWL6040_FORMATS,
1083 },
1084 .capture = {
1085 .stream_name = "Capture",
1086 .channels_min = 1,
1087 .channels_max = 2,
1088 .rates = TWL6040_RATES,
1089 .formats = TWL6040_FORMATS,
1090 },
1091 .ops = &twl6040_dai_ops,
1092 };
1093
1094 #ifdef CONFIG_PM
1095 static int twl6040_suspend(struct snd_soc_codec *codec, pm_message_t state)
1096 {
1097 twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1098
1099 return 0;
1100 }
1101
1102 static int twl6040_resume(struct snd_soc_codec *codec)
1103 {
1104 twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1105 twl6040_set_bias_level(codec, codec->dapm.suspend_bias_level);
1106
1107 return 0;
1108 }
1109 #else
1110 #define twl6040_suspend NULL
1111 #define twl6040_resume NULL
1112 #endif
1113
1114 static int twl6040_probe(struct snd_soc_codec *codec)
1115 {
1116 struct twl4030_codec_data *twl_codec = codec->dev->platform_data;
1117 struct twl6040_data *priv;
1118 int audpwron, naudint;
1119 int ret = 0;
1120 u8 icrev, intmr = TWL6040_ALLINT_MSK;
1121
1122 priv = kzalloc(sizeof(struct twl6040_data), GFP_KERNEL);
1123 if (priv == NULL)
1124 return -ENOMEM;
1125 snd_soc_codec_set_drvdata(codec, priv);
1126
1127 priv->codec = codec;
1128
1129 twl_i2c_read_u8(TWL_MODULE_AUDIO_VOICE, &icrev, TWL6040_REG_ASICREV);
1130
1131 if (twl_codec && (icrev > 0))
1132 audpwron = twl_codec->audpwron_gpio;
1133 else
1134 audpwron = -EINVAL;
1135
1136 if (twl_codec)
1137 naudint = twl_codec->naudint_irq;
1138 else
1139 naudint = 0;
1140
1141 priv->audpwron = audpwron;
1142 priv->naudint = naudint;
1143 priv->workqueue = create_singlethread_workqueue("twl6040-codec");
1144
1145 if (!priv->workqueue)
1146 goto work_err;
1147
1148 INIT_DELAYED_WORK(&priv->delayed_work, twl6040_accessory_work);
1149
1150 mutex_init(&priv->mutex);
1151
1152 init_completion(&priv->ready);
1153
1154 if (gpio_is_valid(audpwron)) {
1155 ret = gpio_request(audpwron, "audpwron");
1156 if (ret)
1157 goto gpio1_err;
1158
1159 ret = gpio_direction_output(audpwron, 0);
1160 if (ret)
1161 goto gpio2_err;
1162
1163 priv->codec_powered = 0;
1164
1165 /* enable only codec ready interrupt */
1166 intmr &= ~(TWL6040_READYMSK | TWL6040_PLUGMSK);
1167
1168 /* reset interrupt status to allow correct power up sequence */
1169 twl6040_read_reg_volatile(codec, TWL6040_REG_INTID);
1170 }
1171 twl6040_write(codec, TWL6040_REG_INTMR, intmr);
1172
1173 if (naudint) {
1174 /* audio interrupt */
1175 ret = request_threaded_irq(naudint, NULL,
1176 twl6040_naudint_handler,
1177 IRQF_TRIGGER_LOW | IRQF_ONESHOT,
1178 "twl6040_codec", codec);
1179 if (ret)
1180 goto gpio2_err;
1181 }
1182
1183 /* init vio registers */
1184 twl6040_init_vio_regs(codec);
1185
1186 /* power on device */
1187 ret = twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1188 if (ret)
1189 goto irq_err;
1190
1191 snd_soc_add_controls(codec, twl6040_snd_controls,
1192 ARRAY_SIZE(twl6040_snd_controls));
1193 twl6040_add_widgets(codec);
1194
1195 return 0;
1196
1197 irq_err:
1198 if (naudint)
1199 free_irq(naudint, codec);
1200 gpio2_err:
1201 if (gpio_is_valid(audpwron))
1202 gpio_free(audpwron);
1203 gpio1_err:
1204 destroy_workqueue(priv->workqueue);
1205 work_err:
1206 kfree(priv);
1207 return ret;
1208 }
1209
1210 static int twl6040_remove(struct snd_soc_codec *codec)
1211 {
1212 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1213 int audpwron = priv->audpwron;
1214 int naudint = priv->naudint;
1215
1216 twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1217
1218 if (gpio_is_valid(audpwron))
1219 gpio_free(audpwron);
1220
1221 if (naudint)
1222 free_irq(naudint, codec);
1223
1224 destroy_workqueue(priv->workqueue);
1225 kfree(priv);
1226
1227 return 0;
1228 }
1229
1230 static struct snd_soc_codec_driver soc_codec_dev_twl6040 = {
1231 .probe = twl6040_probe,
1232 .remove = twl6040_remove,
1233 .suspend = twl6040_suspend,
1234 .resume = twl6040_resume,
1235 .read = twl6040_read_reg_cache,
1236 .write = twl6040_write,
1237 .set_bias_level = twl6040_set_bias_level,
1238 .reg_cache_size = ARRAY_SIZE(twl6040_reg),
1239 .reg_word_size = sizeof(u8),
1240 .reg_cache_default = twl6040_reg,
1241 };
1242
1243 static int __devinit twl6040_codec_probe(struct platform_device *pdev)
1244 {
1245 return snd_soc_register_codec(&pdev->dev,
1246 &soc_codec_dev_twl6040, &twl6040_dai, 1);
1247 }
1248
1249 static int __devexit twl6040_codec_remove(struct platform_device *pdev)
1250 {
1251 snd_soc_unregister_codec(&pdev->dev);
1252 return 0;
1253 }
1254
1255 static struct platform_driver twl6040_codec_driver = {
1256 .driver = {
1257 .name = "twl6040-codec",
1258 .owner = THIS_MODULE,
1259 },
1260 .probe = twl6040_codec_probe,
1261 .remove = __devexit_p(twl6040_codec_remove),
1262 };
1263
1264 static int __init twl6040_codec_init(void)
1265 {
1266 return platform_driver_register(&twl6040_codec_driver);
1267 }
1268 module_init(twl6040_codec_init);
1269
1270 static void __exit twl6040_codec_exit(void)
1271 {
1272 platform_driver_unregister(&twl6040_codec_driver);
1273 }
1274 module_exit(twl6040_codec_exit);
1275
1276 MODULE_DESCRIPTION("ASoC TWL6040 codec driver");
1277 MODULE_AUTHOR("Misael Lopez Cruz");
1278 MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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