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ASoC: twl6040: Move PLL selection to codec driver
[deliverable/linux.git] / sound / soc / codecs / twl6040.c
CommitLineData
8ecbabd9
MLC		 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>
8ecbabd9 27#include <linux/platform_device.h>
68b40cc4 28#include <linux/slab.h>
8ecbabd9 29#include <linux/i2c/twl.h>
fb34d3d5 30#include <linux/mfd/twl6040.h>
8ecbabd9
MLC		 31
32#include <sound/core.h>
33#include <sound/pcm.h>
34#include <sound/pcm_params.h>
35#include <sound/soc.h>
8ecbabd9
MLC		 36#include <sound/initval.h>
37#include <sound/tlv.h>
38
39#include "twl6040.h"
40
60ea4cec 41#define TWL6040_RATES SNDRV_PCM_RATE_8000_96000
1bf84759
MOC		 42#define TWL6040_FORMATS (SNDRV_PCM_FMTBIT_S32_LE)
43
44#define TWL6040_OUTHS_0dB 0x00
45#define TWL6040_OUTHS_M30dB 0x0F
46#define TWL6040_OUTHF_0dB 0x03
47#define TWL6040_OUTHF_M52dB 0x1D
48
49#define TWL6040_RAMP_NONE 0
50#define TWL6040_RAMP_UP 1
51#define TWL6040_RAMP_DOWN 2
52
53#define TWL6040_HSL_VOL_MASK 0x0F
54#define TWL6040_HSL_VOL_SHIFT 0
55#define TWL6040_HSR_VOL_MASK 0xF0
56#define TWL6040_HSR_VOL_SHIFT 4
57#define TWL6040_HF_VOL_MASK 0x1F
58#define TWL6040_HF_VOL_SHIFT 0
59
60struct twl6040_output {
61 u16 active;
62 u16 left_vol;
63 u16 right_vol;
64 u16 left_step;
65 u16 right_step;
66 unsigned int step_delay;
67 u16 ramp;
68 u16 mute;
69 struct completion ramp_done;
70};
8ecbabd9 71
a2d2362e
JEC		 72struct twl6040_jack_data {
73 struct snd_soc_jack *jack;
74 int report;
75};
76
8ecbabd9
MLC		 77/* codec private data */
78struct twl6040_data {
2a433b9d 79 int plug_irq;
8ecbabd9
MLC		 80 int codec_powered;
81 int pll;
82 int non_lp;
af958c72 83 int pll_power_mode;
6bba63b6
MLC		 84 int hs_power_mode;
85 int hs_power_mode_locked;
fb34d3d5 86 unsigned int clk_in;
8ecbabd9 87 unsigned int sysclk;
1fbe9952
ACG		 88 u16 hs_left_step;
89 u16 hs_right_step;
90 u16 hf_left_step;
91 u16 hf_right_step;
8ecbabd9 92 struct snd_pcm_hw_constraint_list *sysclk_constraints;
a2d2362e
JEC		 93 struct twl6040_jack_data hs_jack;
94 struct snd_soc_codec *codec;
95 struct workqueue_struct *workqueue;
96 struct delayed_work delayed_work;
97 struct mutex mutex;
1bf84759
MOC		 98 struct twl6040_output headset;
99 struct twl6040_output handsfree;
100 struct workqueue_struct *hf_workqueue;
101 struct workqueue_struct *hs_workqueue;
102 struct delayed_work hs_delayed_work;
103 struct delayed_work hf_delayed_work;
8ecbabd9
MLC		 104};
105
106/*
107 * twl6040 register cache & default register settings
108 */
109static const u8 twl6040_reg[TWL6040_CACHEREGNUM] = {
110 0x00, /* not used 0x00 */
111 0x4B, /* TWL6040_ASICID (ro) 0x01 */
112 0x00, /* TWL6040_ASICREV (ro) 0x02 */
113 0x00, /* TWL6040_INTID 0x03 */
114 0x00, /* TWL6040_INTMR 0x04 */
115 0x00, /* TWL6040_NCPCTRL 0x05 */
116 0x00, /* TWL6040_LDOCTL 0x06 */
117 0x60, /* TWL6040_HPPLLCTL 0x07 */
118 0x00, /* TWL6040_LPPLLCTL 0x08 */
119 0x4A, /* TWL6040_LPPLLDIV 0x09 */
120 0x00, /* TWL6040_AMICBCTL 0x0A */
121 0x00, /* TWL6040_DMICBCTL 0x0B */
122 0x18, /* TWL6040_MICLCTL 0x0C - No input selected on Left Mic */
123 0x18, /* TWL6040_MICRCTL 0x0D - No input selected on Right Mic */
124 0x00, /* TWL6040_MICGAIN 0x0E */
125 0x1B, /* TWL6040_LINEGAIN 0x0F */
126 0x00, /* TWL6040_HSLCTL 0x10 */
127 0x00, /* TWL6040_HSRCTL 0x11 */
128 0x00, /* TWL6040_HSGAIN 0x12 */
129 0x00, /* TWL6040_EARCTL 0x13 */
130 0x00, /* TWL6040_HFLCTL 0x14 */
131 0x00, /* TWL6040_HFLGAIN 0x15 */
132 0x00, /* TWL6040_HFRCTL 0x16 */
133 0x00, /* TWL6040_HFRGAIN 0x17 */
134 0x00, /* TWL6040_VIBCTLL 0x18 */
135 0x00, /* TWL6040_VIBDATL 0x19 */
136 0x00, /* TWL6040_VIBCTLR 0x1A */
137 0x00, /* TWL6040_VIBDATR 0x1B */
138 0x00, /* TWL6040_HKCTL1 0x1C */
139 0x00, /* TWL6040_HKCTL2 0x1D */
140 0x00, /* TWL6040_GPOCTL 0x1E */
141 0x00, /* TWL6040_ALB 0x1F */
142 0x00, /* TWL6040_DLB 0x20 */
143 0x00, /* not used 0x21 */
144 0x00, /* not used 0x22 */
145 0x00, /* not used 0x23 */
146 0x00, /* not used 0x24 */
147 0x00, /* not used 0x25 */
148 0x00, /* not used 0x26 */
149 0x00, /* not used 0x27 */
150 0x00, /* TWL6040_TRIM1 0x28 */
151 0x00, /* TWL6040_TRIM2 0x29 */
152 0x00, /* TWL6040_TRIM3 0x2A */
153 0x00, /* TWL6040_HSOTRIM 0x2B */
154 0x00, /* TWL6040_HFOTRIM 0x2C */
155 0x09, /* TWL6040_ACCCTL 0x2D */
156 0x00, /* TWL6040_STATUS (ro) 0x2E */
157};
158
159/*
160 * twl6040 vio/gnd registers:
161 * registers under vio/gnd supply can be accessed
162 * before the power-up sequence, after NRESPWRON goes high
163 */
164static const int twl6040_vio_reg[TWL6040_VIOREGNUM] = {
165 TWL6040_REG_ASICID,
166 TWL6040_REG_ASICREV,
167 TWL6040_REG_INTID,
168 TWL6040_REG_INTMR,
169 TWL6040_REG_NCPCTL,
170 TWL6040_REG_LDOCTL,
171 TWL6040_REG_AMICBCTL,
172 TWL6040_REG_DMICBCTL,
173 TWL6040_REG_HKCTL1,
174 TWL6040_REG_HKCTL2,
175 TWL6040_REG_GPOCTL,
176 TWL6040_REG_TRIM1,
177 TWL6040_REG_TRIM2,
178 TWL6040_REG_TRIM3,
179 TWL6040_REG_HSOTRIM,
180 TWL6040_REG_HFOTRIM,
181 TWL6040_REG_ACCCTL,
182 TWL6040_REG_STATUS,
183};
184
185/*
186 * twl6040 vdd/vss registers:
187 * registers under vdd/vss supplies can only be accessed
188 * after the power-up sequence
189 */
190static const int twl6040_vdd_reg[TWL6040_VDDREGNUM] = {
191 TWL6040_REG_HPPLLCTL,
192 TWL6040_REG_LPPLLCTL,
193 TWL6040_REG_LPPLLDIV,
194 TWL6040_REG_MICLCTL,
195 TWL6040_REG_MICRCTL,
196 TWL6040_REG_MICGAIN,
197 TWL6040_REG_LINEGAIN,
198 TWL6040_REG_HSLCTL,
199 TWL6040_REG_HSRCTL,
200 TWL6040_REG_HSGAIN,
201 TWL6040_REG_EARCTL,
202 TWL6040_REG_HFLCTL,
203 TWL6040_REG_HFLGAIN,
204 TWL6040_REG_HFRCTL,
205 TWL6040_REG_HFRGAIN,
206 TWL6040_REG_VIBCTLL,
207 TWL6040_REG_VIBDATL,
208 TWL6040_REG_VIBCTLR,
209 TWL6040_REG_VIBDATR,
210 TWL6040_REG_ALB,
211 TWL6040_REG_DLB,
212};
213
af958c72
PU		 214/* set of rates for each pll: low-power and high-performance */
215static unsigned int lp_rates[] = {
216 8000,
217 11250,
218 16000,
219 22500,
220 32000,
221 44100,
222 48000,
223 88200,
224 96000,
225};
226
227static struct snd_pcm_hw_constraint_list lp_constraints = {
228 .count = ARRAY_SIZE(lp_rates),
229 .list = lp_rates,
230};
231
232static unsigned int hp_rates[] = {
233 8000,
234 16000,
235 32000,
236 48000,
237 96000,
238};
239
240static struct snd_pcm_hw_constraint_list hp_constraints = {
241 .count = ARRAY_SIZE(hp_rates),
242 .list = hp_rates,
243};
244
8ecbabd9
MLC		 245/*
246 * read twl6040 register cache
247 */
248static inline unsigned int twl6040_read_reg_cache(struct snd_soc_codec *codec,
249 unsigned int reg)
250{
251 u8 *cache = codec->reg_cache;
252
253 if (reg >= TWL6040_CACHEREGNUM)
254 return -EIO;
255
256 return cache[reg];
257}
258
259/*
260 * write twl6040 register cache
261 */
262static inline void twl6040_write_reg_cache(struct snd_soc_codec *codec,
263 u8 reg, u8 value)
264{
265 u8 *cache = codec->reg_cache;
266
267 if (reg >= TWL6040_CACHEREGNUM)
268 return;
269 cache[reg] = value;
270}
271
272/*
273 * read from twl6040 hardware register
274 */
275static int twl6040_read_reg_volatile(struct snd_soc_codec *codec,
276 unsigned int reg)
277{
fb34d3d5 278 struct twl6040 *twl6040 = codec->control_data;
8ecbabd9
MLC		 279 u8 value;
280
281 if (reg >= TWL6040_CACHEREGNUM)
282 return -EIO;
283
fb34d3d5 284 value = twl6040_reg_read(twl6040, reg);
8ecbabd9
MLC		 285 twl6040_write_reg_cache(codec, reg, value);
286
287 return value;
288}
289
290/*
291 * write to the twl6040 register space
292 */
293static int twl6040_write(struct snd_soc_codec *codec,
294 unsigned int reg, unsigned int value)
295{
fb34d3d5
MLC		 296 struct twl6040 *twl6040 = codec->control_data;
297
8ecbabd9
MLC		 298 if (reg >= TWL6040_CACHEREGNUM)
299 return -EIO;
300
301 twl6040_write_reg_cache(codec, reg, value);
fb34d3d5 302 return twl6040_reg_write(twl6040, reg, value);
8ecbabd9
MLC		 303}
304
305static void twl6040_init_vio_regs(struct snd_soc_codec *codec)
306{
307 u8 *cache = codec->reg_cache;
308 int reg, i;
309
8ecbabd9
MLC		 310 for (i = 0; i < TWL6040_VIOREGNUM; i++) {
311 reg = twl6040_vio_reg[i];
fb34d3d5
MLC		 312 /*
313 * skip read-only registers (ASICID, ASICREV, STATUS)
314 * and registers shared among MFD children
315 */
8ecbabd9
MLC		 316 switch (reg) {
317 case TWL6040_REG_ASICID:
318 case TWL6040_REG_ASICREV:
fb34d3d5
MLC		 319 case TWL6040_REG_INTID:
320 case TWL6040_REG_INTMR:
321 case TWL6040_REG_NCPCTL:
322 case TWL6040_REG_LDOCTL:
323 case TWL6040_REG_GPOCTL:
324 case TWL6040_REG_ACCCTL:
8ecbabd9
MLC		 325 case TWL6040_REG_STATUS:
326 continue;
327 default:
328 break;
329 }
330 twl6040_write(codec, reg, cache[reg]);
331 }
332}
333
334static void twl6040_init_vdd_regs(struct snd_soc_codec *codec)
335{
336 u8 *cache = codec->reg_cache;
337 int reg, i;
338
339 for (i = 0; i < TWL6040_VDDREGNUM; i++) {
340 reg = twl6040_vdd_reg[i];
fb34d3d5
MLC		 341 /* skip vibra and PLL registers */
342 switch (reg) {
343 case TWL6040_REG_VIBCTLL:
344 case TWL6040_REG_VIBDATL:
345 case TWL6040_REG_VIBCTLR:
346 case TWL6040_REG_VIBDATR:
347 case TWL6040_REG_HPPLLCTL:
348 case TWL6040_REG_LPPLLCTL:
349 case TWL6040_REG_LPPLLDIV:
350 continue;
351 default:
352 break;
353 }
354
8ecbabd9
MLC		 355 twl6040_write(codec, reg, cache[reg]);
356 }
357}
358
1bf84759
MOC		 359/*
360 * Ramp HS PGA volume to minimise pops at stream startup and shutdown.
361 */
362static inline int twl6040_hs_ramp_step(struct snd_soc_codec *codec,
363 unsigned int left_step, unsigned int right_step)
364{
365
366 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
367 struct twl6040_output *headset = &priv->headset;
368 int left_complete = 0, right_complete = 0;
369 u8 reg, val;
370
371 /* left channel */
372 left_step = (left_step > 0xF) ? 0xF : left_step;
373 reg = twl6040_read_reg_cache(codec, TWL6040_REG_HSGAIN);
374 val = (~reg & TWL6040_HSL_VOL_MASK);
375
376 if (headset->ramp == TWL6040_RAMP_UP) {
377 /* ramp step up */
378 if (val < headset->left_vol) {
1fbe9952
ACG		 379 if (val + left_step > headset->left_vol)
380 val = headset->left_vol;
381 else
382 val += left_step;
383
1bf84759
MOC		 384 reg &= ~TWL6040_HSL_VOL_MASK;
385 twl6040_write(codec, TWL6040_REG_HSGAIN,
386 (reg | (~val & TWL6040_HSL_VOL_MASK)));
387 } else {
388 left_complete = 1;
389 }
390 } else if (headset->ramp == TWL6040_RAMP_DOWN) {
391 /* ramp step down */
392 if (val > 0x0) {
1fbe9952
ACG		 393 if ((int)val - (int)left_step < 0)
394 val = 0;
395 else
396 val -= left_step;
397
1bf84759
MOC		 398 reg &= ~TWL6040_HSL_VOL_MASK;
399 twl6040_write(codec, TWL6040_REG_HSGAIN, reg |
400 (~val & TWL6040_HSL_VOL_MASK));
401 } else {
402 left_complete = 1;
403 }
404 }
405
406 /* right channel */
407 right_step = (right_step > 0xF) ? 0xF : right_step;
408 reg = twl6040_read_reg_cache(codec, TWL6040_REG_HSGAIN);
409 val = (~reg & TWL6040_HSR_VOL_MASK) >> TWL6040_HSR_VOL_SHIFT;
410
411 if (headset->ramp == TWL6040_RAMP_UP) {
412 /* ramp step up */
413 if (val < headset->right_vol) {
1fbe9952
ACG		 414 if (val + right_step > headset->right_vol)
415 val = headset->right_vol;
416 else
417 val += right_step;
418
1bf84759
MOC		 419 reg &= ~TWL6040_HSR_VOL_MASK;
420 twl6040_write(codec, TWL6040_REG_HSGAIN,
421 (reg | (~val << TWL6040_HSR_VOL_SHIFT)));
422 } else {
423 right_complete = 1;
424 }
425 } else if (headset->ramp == TWL6040_RAMP_DOWN) {
426 /* ramp step down */
427 if (val > 0x0) {
1fbe9952
ACG		 428 if ((int)val - (int)right_step < 0)
429 val = 0;
430 else
431 val -= right_step;
432
1bf84759
MOC		 433 reg &= ~TWL6040_HSR_VOL_MASK;
434 twl6040_write(codec, TWL6040_REG_HSGAIN,
435 reg | (~val << TWL6040_HSR_VOL_SHIFT));
436 } else {
437 right_complete = 1;
438 }
439 }
440
441 return left_complete & right_complete;
442}
443
444/*
445 * Ramp HF PGA volume to minimise pops at stream startup and shutdown.
446 */
447static inline int twl6040_hf_ramp_step(struct snd_soc_codec *codec,
448 unsigned int left_step, unsigned int right_step)
449{
450 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
451 struct twl6040_output *handsfree = &priv->handsfree;
452 int left_complete = 0, right_complete = 0;
453 u16 reg, val;
454
455 /* left channel */
456 left_step = (left_step > 0x1D) ? 0x1D : left_step;
457 reg = twl6040_read_reg_cache(codec, TWL6040_REG_HFLGAIN);
458 reg = 0x1D - reg;
459 val = (reg & TWL6040_HF_VOL_MASK);
460 if (handsfree->ramp == TWL6040_RAMP_UP) {
461 /* ramp step up */
462 if (val < handsfree->left_vol) {
1fbe9952
ACG		 463 if (val + left_step > handsfree->left_vol)
464 val = handsfree->left_vol;
465 else
466 val += left_step;
467
1bf84759
MOC		 468 reg &= ~TWL6040_HF_VOL_MASK;
469 twl6040_write(codec, TWL6040_REG_HFLGAIN,
470 reg | (0x1D - val));
471 } else {
472 left_complete = 1;
473 }
474 } else if (handsfree->ramp == TWL6040_RAMP_DOWN) {
475 /* ramp step down */
476 if (val > 0) {
1fbe9952
ACG		 477 if ((int)val - (int)left_step < 0)
478 val = 0;
479 else
480 val -= left_step;
481
1bf84759
MOC		 482 reg &= ~TWL6040_HF_VOL_MASK;
483 twl6040_write(codec, TWL6040_REG_HFLGAIN,
484 reg | (0x1D - val));
485 } else {
486 left_complete = 1;
487 }
488 }
489
490 /* right channel */
491 right_step = (right_step > 0x1D) ? 0x1D : right_step;
492 reg = twl6040_read_reg_cache(codec, TWL6040_REG_HFRGAIN);
493 reg = 0x1D - reg;
494 val = (reg & TWL6040_HF_VOL_MASK);
495 if (handsfree->ramp == TWL6040_RAMP_UP) {
496 /* ramp step up */
497 if (val < handsfree->right_vol) {
1fbe9952
ACG		 498 if (val + right_step > handsfree->right_vol)
499 val = handsfree->right_vol;
500 else
501 val += right_step;
502
1bf84759
MOC		 503 reg &= ~TWL6040_HF_VOL_MASK;
504 twl6040_write(codec, TWL6040_REG_HFRGAIN,
505 reg | (0x1D - val));
506 } else {
507 right_complete = 1;
508 }
509 } else if (handsfree->ramp == TWL6040_RAMP_DOWN) {
510 /* ramp step down */
511 if (val > 0) {
1fbe9952
ACG		 512 if ((int)val - (int)right_step < 0)
513 val = 0;
514 else
515 val -= right_step;
516
1bf84759
MOC		 517 reg &= ~TWL6040_HF_VOL_MASK;
518 twl6040_write(codec, TWL6040_REG_HFRGAIN,
519 reg | (0x1D - val));
520 }
521 }
522
523 return left_complete & right_complete;
524}
525
526/*
527 * This work ramps both output PGAs at stream start/stop time to
528 * minimise pop associated with DAPM power switching.
529 */
530static void twl6040_pga_hs_work(struct work_struct *work)
531{
532 struct twl6040_data *priv =
533 container_of(work, struct twl6040_data, hs_delayed_work.work);
534 struct snd_soc_codec *codec = priv->codec;
535 struct twl6040_output *headset = &priv->headset;
536 unsigned int delay = headset->step_delay;
537 int i, headset_complete;
538
539 /* do we need to ramp at all ? */
540 if (headset->ramp == TWL6040_RAMP_NONE)
541 return;
542
543 /* HS PGA volumes have 4 bits of resolution to ramp */
544 for (i = 0; i <= 16; i++) {
1fbe9952
ACG		 545 headset_complete = twl6040_hs_ramp_step(codec,
546 headset->left_step,
547 headset->right_step);
1bf84759
MOC		 548
549 /* ramp finished ? */
550 if (headset_complete)
551 break;
552
553 /*
554 * TODO: tune: delay is longer over 0dB
555 * as increases are larger.
556 */
557 if (i >= 8)
558 schedule_timeout_interruptible(msecs_to_jiffies(delay +
559 (delay >> 1)));
560 else
561 schedule_timeout_interruptible(msecs_to_jiffies(delay));
562 }
563
564 if (headset->ramp == TWL6040_RAMP_DOWN) {
565 headset->active = 0;
566 complete(&headset->ramp_done);
567 } else {
568 headset->active = 1;
569 }
570 headset->ramp = TWL6040_RAMP_NONE;
571}
572
573static void twl6040_pga_hf_work(struct work_struct *work)
574{
575 struct twl6040_data *priv =
576 container_of(work, struct twl6040_data, hf_delayed_work.work);
577 struct snd_soc_codec *codec = priv->codec;
578 struct twl6040_output *handsfree = &priv->handsfree;
579 unsigned int delay = handsfree->step_delay;
580 int i, handsfree_complete;
581
582 /* do we need to ramp at all ? */
583 if (handsfree->ramp == TWL6040_RAMP_NONE)
584 return;
585
586 /* HF PGA volumes have 5 bits of resolution to ramp */
587 for (i = 0; i <= 32; i++) {
1fbe9952
ACG		 588 handsfree_complete = twl6040_hf_ramp_step(codec,
589 handsfree->left_step,
590 handsfree->right_step);
1bf84759
MOC		 591
592 /* ramp finished ? */
593 if (handsfree_complete)
594 break;
595
596 /*
597 * TODO: tune: delay is longer over 0dB
598 * as increases are larger.
599 */
600 if (i >= 16)
601 schedule_timeout_interruptible(msecs_to_jiffies(delay +
602 (delay >> 1)));
603 else
604 schedule_timeout_interruptible(msecs_to_jiffies(delay));
605 }
606
607
608 if (handsfree->ramp == TWL6040_RAMP_DOWN) {
609 handsfree->active = 0;
610 complete(&handsfree->ramp_done);
611 } else
612 handsfree->active = 1;
613 handsfree->ramp = TWL6040_RAMP_NONE;
614}
615
616static int pga_event(struct snd_soc_dapm_widget *w,
617 struct snd_kcontrol *kcontrol, int event)
618{
619 struct snd_soc_codec *codec = w->codec;
620 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
621 struct twl6040_output *out;
622 struct delayed_work *work;
623 struct workqueue_struct *queue;
624
625 switch (w->shift) {
626 case 2:
627 case 3:
628 out = &priv->headset;
629 work = &priv->hs_delayed_work;
630 queue = priv->hs_workqueue;
1fbe9952
ACG		 631 out->left_step = priv->hs_left_step;
632 out->right_step = priv->hs_right_step;
1bf84759
MOC		 633 out->step_delay = 5; /* 5 ms between volume ramp steps */
634 break;
635 case 4:
636 out = &priv->handsfree;
637 work = &priv->hf_delayed_work;
638 queue = priv->hf_workqueue;
1fbe9952
ACG		 639 out->left_step = priv->hf_left_step;
640 out->right_step = priv->hf_right_step;
1bf84759
MOC		 641 out->step_delay = 5; /* 5 ms between volume ramp steps */
642 if (SND_SOC_DAPM_EVENT_ON(event))
643 priv->non_lp++;
644 else
645 priv->non_lp--;
646 break;
647 default:
648 return -1;
649 }
650
651 switch (event) {
652 case SND_SOC_DAPM_POST_PMU:
653 if (out->active)
654 break;
655
656 /* don't use volume ramp for power-up */
657 out->left_step = out->left_vol;
658 out->right_step = out->right_vol;
659
660 if (!delayed_work_pending(work)) {
661 out->ramp = TWL6040_RAMP_UP;
662 queue_delayed_work(queue, work,
663 msecs_to_jiffies(1));
664 }
665 break;
666
667 case SND_SOC_DAPM_PRE_PMD:
668 if (!out->active)
669 break;
670
671 if (!delayed_work_pending(work)) {
672 /* use volume ramp for power-down */
1bf84759
MOC		 673 out->ramp = TWL6040_RAMP_DOWN;
674 INIT_COMPLETION(out->ramp_done);
675
676 queue_delayed_work(queue, work,
677 msecs_to_jiffies(1));
678
679 wait_for_completion_timeout(&out->ramp_done,
680 msecs_to_jiffies(2000));
681 }
682 break;
683 }
684
685 return 0;
686}
687
8ecbabd9
MLC		 688/* set headset dac and driver power mode */
689static int headset_power_mode(struct snd_soc_codec *codec, int high_perf)
690{
691 int hslctl, hsrctl;
692 int mask = TWL6040_HSDRVMODEL | TWL6040_HSDACMODEL;
693
694 hslctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSLCTL);
695 hsrctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSRCTL);
696
697 if (high_perf) {
698 hslctl &= ~mask;
699 hsrctl &= ~mask;
700 } else {
701 hslctl |= mask;
702 hsrctl |= mask;
703 }
704
705 twl6040_write(codec, TWL6040_REG_HSLCTL, hslctl);
706 twl6040_write(codec, TWL6040_REG_HSRCTL, hsrctl);
707
708 return 0;
709}
710
0fad4ed7
JEC		 711static int twl6040_hs_dac_event(struct snd_soc_dapm_widget *w,
712 struct snd_kcontrol *kcontrol, int event)
713{
714 msleep(1);
715 return 0;
716}
717
8ecbabd9
MLC		 718static int twl6040_power_mode_event(struct snd_soc_dapm_widget *w,
719 struct snd_kcontrol *kcontrol, int event)
720{
721 struct snd_soc_codec *codec = w->codec;
d4a8ca24 722 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
6bba63b6 723 int ret = 0;
8ecbabd9 724
6bba63b6 725 if (SND_SOC_DAPM_EVENT_ON(event)) {
8ecbabd9 726 priv->non_lp++;
6bba63b6
MLC		 727 if (!strcmp(w->name, "Earphone Driver")) {
728 /* Earphone doesn't support low power mode */
729 priv->hs_power_mode_locked = 1;
730 ret = headset_power_mode(codec, 1);
731 }
732 } else {
8ecbabd9 733 priv->non_lp--;
6bba63b6
MLC		 734 if (!strcmp(w->name, "Earphone Driver")) {
735 priv->hs_power_mode_locked = 0;
736 ret = headset_power_mode(codec, priv->hs_power_mode);
737 }
738 }
8ecbabd9 739
0fad4ed7
JEC		 740 msleep(1);
741
6bba63b6 742 return ret;
8ecbabd9
MLC		 743}
744
64ed9836
MB		 745static void twl6040_hs_jack_report(struct snd_soc_codec *codec,
746 struct snd_soc_jack *jack, int report)
a2d2362e
JEC		 747{
748 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
749 int status;
750
751 mutex_lock(&priv->mutex);
752
753 /* Sync status */
754 status = twl6040_read_reg_volatile(codec, TWL6040_REG_STATUS);
755 if (status & TWL6040_PLUGCOMP)
756 snd_soc_jack_report(jack, report, report);
757 else
758 snd_soc_jack_report(jack, 0, report);
759
760 mutex_unlock(&priv->mutex);
761}
762
763void twl6040_hs_jack_detect(struct snd_soc_codec *codec,
764 struct snd_soc_jack *jack, int report)
765{
766 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
767 struct twl6040_jack_data *hs_jack = &priv->hs_jack;
768
769 hs_jack->jack = jack;
770 hs_jack->report = report;
771
772 twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
773}
774EXPORT_SYMBOL_GPL(twl6040_hs_jack_detect);
775
776static void twl6040_accessory_work(struct work_struct *work)
777{
778 struct twl6040_data *priv = container_of(work,
779 struct twl6040_data, delayed_work.work);
780 struct snd_soc_codec *codec = priv->codec;
781 struct twl6040_jack_data *hs_jack = &priv->hs_jack;
782
783 twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
784}
785
8ecbabd9 786/* audio interrupt handler */
fb34d3d5 787static irqreturn_t twl6040_audio_handler(int irq, void *data)
8ecbabd9
MLC		 788{
789 struct snd_soc_codec *codec = data;
fb34d3d5 790 struct twl6040 *twl6040 = codec->control_data;
d4a8ca24 791 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
8ecbabd9
MLC		 792 u8 intid;
793
fb34d3d5 794 intid = twl6040_reg_read(twl6040, TWL6040_REG_INTID);
cf370a5a
OM		 795
796 if ((intid & TWL6040_PLUGINT) || (intid & TWL6040_UNPLUGINT))
a2d2362e
JEC		 797 queue_delayed_work(priv->workqueue, &priv->delayed_work,
798 msecs_to_jiffies(200));
cf370a5a 799
8ecbabd9
MLC		 800 return IRQ_HANDLED;
801}
802
1bf84759
MOC		 803static int twl6040_put_volsw(struct snd_kcontrol *kcontrol,
804 struct snd_ctl_elem_value *ucontrol)
805{
806 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
807 struct twl6040_data *twl6040_priv = snd_soc_codec_get_drvdata(codec);
808 struct twl6040_output *out = NULL;
809 struct soc_mixer_control *mc =
810 (struct soc_mixer_control *)kcontrol->private_value;
811 int ret;
812 unsigned int reg = mc->reg;
813
814 /* For HS and HF we shadow the values and only actually write
815 * them out when active in order to ensure the amplifier comes on
816 * as quietly as possible. */
817 switch (reg) {
818 case TWL6040_REG_HSGAIN:
819 out = &twl6040_priv->headset;
820 break;
821 default:
822 break;
823 }
824
825 if (out) {
826 out->left_vol = ucontrol->value.integer.value[0];
827 out->right_vol = ucontrol->value.integer.value[1];
828 if (!out->active)
829 return 1;
830 }
831
832 ret = snd_soc_put_volsw(kcontrol, ucontrol);
833 if (ret < 0)
834 return ret;
835
836 return 1;
837}
838
839static int twl6040_get_volsw(struct snd_kcontrol *kcontrol,
840 struct snd_ctl_elem_value *ucontrol)
841{
842 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
843 struct twl6040_data *twl6040_priv = snd_soc_codec_get_drvdata(codec);
844 struct twl6040_output *out = &twl6040_priv->headset;
845 struct soc_mixer_control *mc =
846 (struct soc_mixer_control *)kcontrol->private_value;
847 unsigned int reg = mc->reg;
848
849 switch (reg) {
850 case TWL6040_REG_HSGAIN:
851 out = &twl6040_priv->headset;
852 ucontrol->value.integer.value[0] = out->left_vol;
853 ucontrol->value.integer.value[1] = out->right_vol;
854 return 0;
855
856 default:
857 break;
858 }
859
860 return snd_soc_get_volsw(kcontrol, ucontrol);
861}
862
863static int twl6040_put_volsw_2r_vu(struct snd_kcontrol *kcontrol,
864 struct snd_ctl_elem_value *ucontrol)
865{
866 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
867 struct twl6040_data *twl6040_priv = snd_soc_codec_get_drvdata(codec);
868 struct twl6040_output *out = NULL;
869 struct soc_mixer_control *mc =
870 (struct soc_mixer_control *)kcontrol->private_value;
871 int ret;
872 unsigned int reg = mc->reg;
873
874 /* For HS and HF we shadow the values and only actually write
875 * them out when active in order to ensure the amplifier comes on
876 * as quietly as possible. */
877 switch (reg) {
878 case TWL6040_REG_HFLGAIN:
879 case TWL6040_REG_HFRGAIN:
880 out = &twl6040_priv->handsfree;
881 break;
882 default:
883 break;
884 }
885
886 if (out) {
887 out->left_vol = ucontrol->value.integer.value[0];
888 out->right_vol = ucontrol->value.integer.value[1];
889 if (!out->active)
890 return 1;
891 }
892
893 ret = snd_soc_put_volsw_2r(kcontrol, ucontrol);
894 if (ret < 0)
895 return ret;
896
897 return 1;
898}
899
900static int twl6040_get_volsw_2r(struct snd_kcontrol *kcontrol,
901 struct snd_ctl_elem_value *ucontrol)
902{
903 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
904 struct twl6040_data *twl6040_priv = snd_soc_codec_get_drvdata(codec);
905 struct twl6040_output *out = &twl6040_priv->handsfree;
906 struct soc_mixer_control *mc =
907 (struct soc_mixer_control *)kcontrol->private_value;
908 unsigned int reg = mc->reg;
909
910 /* If these are cached registers use the cache */
911 switch (reg) {
912 case TWL6040_REG_HFLGAIN:
913 case TWL6040_REG_HFRGAIN:
914 out = &twl6040_priv->handsfree;
915 ucontrol->value.integer.value[0] = out->left_vol;
916 ucontrol->value.integer.value[1] = out->right_vol;
917 return 0;
918
919 default:
920 break;
921 }
922
923 return snd_soc_get_volsw_2r(kcontrol, ucontrol);
924}
925
926/* double control with volume update */
927#define SOC_TWL6040_DOUBLE_TLV(xname, xreg, shift_left, shift_right, xmax,\
928 xinvert, tlv_array)\
929{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
930 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
931 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
932 .tlv.p = (tlv_array), \
933 .info = snd_soc_info_volsw, .get = twl6040_get_volsw, \
934 .put = twl6040_put_volsw, \
935 .private_value = (unsigned long)&(struct soc_mixer_control) \
936 {.reg = xreg, .shift = shift_left, .rshift = shift_right,\
937 .max = xmax, .platform_max = xmax, .invert = xinvert} }
938
939/* double control with volume update */
940#define SOC_TWL6040_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax,\
941 xinvert, tlv_array)\
942{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
943 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
944 SNDRV_CTL_ELEM_ACCESS_READWRITE | \
945 SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
946 .tlv.p = (tlv_array), \
947 .info = snd_soc_info_volsw_2r, \
948 .get = twl6040_get_volsw_2r, .put = twl6040_put_volsw_2r_vu, \
949 .private_value = (unsigned long)&(struct soc_mixer_control) \
950 {.reg = reg_left, .rreg = reg_right, .shift = xshift, \
951 .rshift = xshift, .max = xmax, .invert = xinvert}, }
952
8ecbabd9
MLC		 953/*
954 * MICATT volume control:
955 * from -6 to 0 dB in 6 dB steps
956 */
957static DECLARE_TLV_DB_SCALE(mic_preamp_tlv, -600, 600, 0);
958
959/*
960 * MICGAIN volume control:
9020808b 961 * from -6 to 30 dB in 6 dB steps
8ecbabd9 962 */
9020808b 963static DECLARE_TLV_DB_SCALE(mic_amp_tlv, -600, 600, 0);
8ecbabd9 964
370a0314
JEC		 965/*
966 * AFMGAIN volume control:
1f71a3ba 967 * from -18 to 24 dB in 6 dB steps
370a0314 968 */
1f71a3ba 969static DECLARE_TLV_DB_SCALE(afm_amp_tlv, -1800, 600, 0);
370a0314 970
8ecbabd9
MLC		 971/*
972 * HSGAIN volume control:
973 * from -30 to 0 dB in 2 dB steps
974 */
975static DECLARE_TLV_DB_SCALE(hs_tlv, -3000, 200, 0);
976
977/*
978 * HFGAIN volume control:
979 * from -52 to 6 dB in 2 dB steps
980 */
981static DECLARE_TLV_DB_SCALE(hf_tlv, -5200, 200, 0);
982
871a05a7
JEC		 983/*
984 * EPGAIN volume control:
985 * from -24 to 6 dB in 2 dB steps
986 */
987static DECLARE_TLV_DB_SCALE(ep_tlv, -2400, 200, 0);
988
8ecbabd9
MLC		 989/* Left analog microphone selection */
990static const char *twl6040_amicl_texts[] =
991 {"Headset Mic", "Main Mic", "Aux/FM Left", "Off"};
992
993/* Right analog microphone selection */
994static const char *twl6040_amicr_texts[] =
995 {"Headset Mic", "Sub Mic", "Aux/FM Right", "Off"};
996
997static const struct soc_enum twl6040_enum[] = {
cb973d78
FM		 998 SOC_ENUM_SINGLE(TWL6040_REG_MICLCTL, 3, 4, twl6040_amicl_texts),
999 SOC_ENUM_SINGLE(TWL6040_REG_MICRCTL, 3, 4, twl6040_amicr_texts),
8ecbabd9
MLC		 1000};
1001
370a0314
JEC		 1002static const char *twl6040_hs_texts[] = {
1003 "Off", "HS DAC", "Line-In amp"
1004};
1005
1006static const struct soc_enum twl6040_hs_enum[] = {
1007 SOC_ENUM_SINGLE(TWL6040_REG_HSLCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
1008 twl6040_hs_texts),
1009 SOC_ENUM_SINGLE(TWL6040_REG_HSRCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
1010 twl6040_hs_texts),
1011};
1012
1013static const char *twl6040_hf_texts[] = {
1014 "Off", "HF DAC", "Line-In amp"
1015};
1016
1017static const struct soc_enum twl6040_hf_enum[] = {
1018 SOC_ENUM_SINGLE(TWL6040_REG_HFLCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
1019 twl6040_hf_texts),
1020 SOC_ENUM_SINGLE(TWL6040_REG_HFRCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
1021 twl6040_hf_texts),
1022};
1023
8ecbabd9
MLC		 1024static const struct snd_kcontrol_new amicl_control =
1025 SOC_DAPM_ENUM("Route", twl6040_enum[0]);
1026
1027static const struct snd_kcontrol_new amicr_control =
1028 SOC_DAPM_ENUM("Route", twl6040_enum[1]);
1029
1030/* Headset DAC playback switches */
370a0314
JEC		 1031static const struct snd_kcontrol_new hsl_mux_controls =
1032 SOC_DAPM_ENUM("Route", twl6040_hs_enum[0]);
8ecbabd9 1033
370a0314
JEC		 1034static const struct snd_kcontrol_new hsr_mux_controls =
1035 SOC_DAPM_ENUM("Route", twl6040_hs_enum[1]);
8ecbabd9
MLC		 1036
1037/* Handsfree DAC playback switches */
370a0314
JEC		 1038static const struct snd_kcontrol_new hfl_mux_controls =
1039 SOC_DAPM_ENUM("Route", twl6040_hf_enum[0]);
8ecbabd9 1040
370a0314
JEC		 1041static const struct snd_kcontrol_new hfr_mux_controls =
1042 SOC_DAPM_ENUM("Route", twl6040_hf_enum[1]);
8ecbabd9 1043
871a05a7
JEC		 1044static const struct snd_kcontrol_new ep_driver_switch_controls =
1045 SOC_DAPM_SINGLE("Switch", TWL6040_REG_EARCTL, 0, 1, 0);
1046
6bba63b6 1047/* Headset power mode */
7cca6067 1048static const char *twl6040_power_mode_texts[] = {
6bba63b6
MLC		 1049 "Low-Power", "High-Perfomance",
1050};
1051
7cca6067
PU		 1052static const struct soc_enum twl6040_power_mode_enum =
1053 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(twl6040_power_mode_texts),
1054 twl6040_power_mode_texts);
6bba63b6
MLC		 1055
1056static int twl6040_headset_power_get_enum(struct snd_kcontrol *kcontrol,
1057 struct snd_ctl_elem_value *ucontrol)
1058{
1059 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
1060 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1061
1062 ucontrol->value.enumerated.item[0] = priv->hs_power_mode;
1063
1064 return 0;
1065}
1066
1067static int twl6040_headset_power_put_enum(struct snd_kcontrol *kcontrol,
1068 struct snd_ctl_elem_value *ucontrol)
1069{
1070 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
1071 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1072 int high_perf = ucontrol->value.enumerated.item[0];
1073 int ret = 0;
1074
1075 if (!priv->hs_power_mode_locked)
1076 ret = headset_power_mode(codec, high_perf);
1077
1078 if (!ret)
1079 priv->hs_power_mode = high_perf;
1080
1081 return ret;
1082}
1083
af958c72
PU		 1084static int twl6040_pll_get_enum(struct snd_kcontrol *kcontrol,
1085 struct snd_ctl_elem_value *ucontrol)
1086{
1087 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
1088 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1089
1090 ucontrol->value.enumerated.item[0] = priv->pll_power_mode;
1091
1092 return 0;
1093}
1094
1095static int twl6040_pll_put_enum(struct snd_kcontrol *kcontrol,
1096 struct snd_ctl_elem_value *ucontrol)
1097{
1098 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
1099 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1100
1101 priv->pll_power_mode = ucontrol->value.enumerated.item[0];
1102 if (priv->pll_power_mode)
1103 priv->sysclk_constraints = &hp_constraints;
1104 else
1105 priv->sysclk_constraints = &lp_constraints;
1106
1107 return 0;
1108}
1109
1110int twl6040_get_clk_id(struct snd_soc_codec *codec)
1111{
1112 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1113
1114 if (priv->pll_power_mode)
1115 return TWL6040_SYSCLK_SEL_HPPLL;
1116 else
1117 return TWL6040_SYSCLK_SEL_LPPLL;
1118}
1119EXPORT_SYMBOL_GPL(twl6040_get_clk_id);
1120
8ecbabd9
MLC		 1121static const struct snd_kcontrol_new twl6040_snd_controls[] = {
1122 /* Capture gains */
1123 SOC_DOUBLE_TLV("Capture Preamplifier Volume",
1124 TWL6040_REG_MICGAIN, 6, 7, 1, 1, mic_preamp_tlv),
1125 SOC_DOUBLE_TLV("Capture Volume",
1126 TWL6040_REG_MICGAIN, 0, 3, 4, 0, mic_amp_tlv),
1127
370a0314
JEC		 1128 /* AFM gains */
1129 SOC_DOUBLE_TLV("Aux FM Volume",
1f71a3ba 1130 TWL6040_REG_LINEGAIN, 0, 3, 7, 0, afm_amp_tlv),
370a0314 1131
8ecbabd9 1132 /* Playback gains */
1bf84759 1133 SOC_TWL6040_DOUBLE_TLV("Headset Playback Volume",
8ecbabd9 1134 TWL6040_REG_HSGAIN, 0, 4, 0xF, 1, hs_tlv),
1bf84759 1135 SOC_TWL6040_DOUBLE_R_TLV("Handsfree Playback Volume",
8ecbabd9 1136 TWL6040_REG_HFLGAIN, TWL6040_REG_HFRGAIN, 0, 0x1D, 1, hf_tlv),
871a05a7
JEC		 1137 SOC_SINGLE_TLV("Earphone Playback Volume",
1138 TWL6040_REG_EARCTL, 1, 0xF, 1, ep_tlv),
6bba63b6 1139
7cca6067 1140 SOC_ENUM_EXT("Headset Power Mode", twl6040_power_mode_enum,
6bba63b6
MLC		 1141 twl6040_headset_power_get_enum,
1142 twl6040_headset_power_put_enum),
af958c72
PU		 1143
1144 SOC_ENUM_EXT("PLL Selection", twl6040_power_mode_enum,
1145 twl6040_pll_get_enum, twl6040_pll_put_enum),
8ecbabd9
MLC		 1146};
1147
1148static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
1149 /* Inputs */
1150 SND_SOC_DAPM_INPUT("MAINMIC"),
1151 SND_SOC_DAPM_INPUT("HSMIC"),
1152 SND_SOC_DAPM_INPUT("SUBMIC"),
1153 SND_SOC_DAPM_INPUT("AFML"),
1154 SND_SOC_DAPM_INPUT("AFMR"),
1155
1156 /* Outputs */
1157 SND_SOC_DAPM_OUTPUT("HSOL"),
1158 SND_SOC_DAPM_OUTPUT("HSOR"),
1159 SND_SOC_DAPM_OUTPUT("HFL"),
1160 SND_SOC_DAPM_OUTPUT("HFR"),
871a05a7 1161 SND_SOC_DAPM_OUTPUT("EP"),
8ecbabd9
MLC		 1162
1163 /* Analog input muxes for the capture amplifiers */
1164 SND_SOC_DAPM_MUX("Analog Left Capture Route",
1165 SND_SOC_NOPM, 0, 0, &amicl_control),
1166 SND_SOC_DAPM_MUX("Analog Right Capture Route",
1167 SND_SOC_NOPM, 0, 0, &amicr_control),
1168
1169 /* Analog capture PGAs */
1170 SND_SOC_DAPM_PGA("MicAmpL",
1171 TWL6040_REG_MICLCTL, 0, 0, NULL, 0),
1172 SND_SOC_DAPM_PGA("MicAmpR",
1173 TWL6040_REG_MICRCTL, 0, 0, NULL, 0),
1174
370a0314
JEC		 1175 /* Auxiliary FM PGAs */
1176 SND_SOC_DAPM_PGA("AFMAmpL",
1177 TWL6040_REG_MICLCTL, 1, 0, NULL, 0),
1178 SND_SOC_DAPM_PGA("AFMAmpR",
1179 TWL6040_REG_MICRCTL, 1, 0, NULL, 0),
1180
8ecbabd9
MLC		 1181 /* ADCs */
1182 SND_SOC_DAPM_ADC("ADC Left", "Left Front Capture",
1183 TWL6040_REG_MICLCTL, 2, 0),
1184 SND_SOC_DAPM_ADC("ADC Right", "Right Front Capture",
1185 TWL6040_REG_MICRCTL, 2, 0),
1186
1187 /* Microphone bias */
1188 SND_SOC_DAPM_MICBIAS("Headset Mic Bias",
1189 TWL6040_REG_AMICBCTL, 0, 0),
1190 SND_SOC_DAPM_MICBIAS("Main Mic Bias",
1191 TWL6040_REG_AMICBCTL, 4, 0),
1192 SND_SOC_DAPM_MICBIAS("Digital Mic1 Bias",
1193 TWL6040_REG_DMICBCTL, 0, 0),
1194 SND_SOC_DAPM_MICBIAS("Digital Mic2 Bias",
1195 TWL6040_REG_DMICBCTL, 4, 0),
1196
1197 /* DACs */
0fad4ed7
JEC		 1198 SND_SOC_DAPM_DAC_E("HSDAC Left", "Headset Playback",
1199 TWL6040_REG_HSLCTL, 0, 0,
1200 twl6040_hs_dac_event,
1201 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1202 SND_SOC_DAPM_DAC_E("HSDAC Right", "Headset Playback",
1203 TWL6040_REG_HSRCTL, 0, 0,
1204 twl6040_hs_dac_event,
1205 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
8ecbabd9
MLC		 1206 SND_SOC_DAPM_DAC_E("HFDAC Left", "Handsfree Playback",
1207 TWL6040_REG_HFLCTL, 0, 0,
1208 twl6040_power_mode_event,
1209 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1210 SND_SOC_DAPM_DAC_E("HFDAC Right", "Handsfree Playback",
1211 TWL6040_REG_HFRCTL, 0, 0,
1212 twl6040_power_mode_event,
1213 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1214
370a0314
JEC		 1215 SND_SOC_DAPM_MUX("HF Left Playback",
1216 SND_SOC_NOPM, 0, 0, &hfl_mux_controls),
1217 SND_SOC_DAPM_MUX("HF Right Playback",
1218 SND_SOC_NOPM, 0, 0, &hfr_mux_controls),
1219 /* Analog playback Muxes */
1220 SND_SOC_DAPM_MUX("HS Left Playback",
1221 SND_SOC_NOPM, 0, 0, &hsl_mux_controls),
1222 SND_SOC_DAPM_MUX("HS Right Playback",
1223 SND_SOC_NOPM, 0, 0, &hsr_mux_controls),
8ecbabd9 1224
0fad4ed7 1225 /* Analog playback drivers */
f769bdf2 1226 SND_SOC_DAPM_OUT_DRV_E("Handsfree Left Driver",
0fad4ed7 1227 TWL6040_REG_HFLCTL, 4, 0, NULL, 0,
1bf84759
MOC		 1228 pga_event,
1229 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
f769bdf2 1230 SND_SOC_DAPM_OUT_DRV_E("Handsfree Right Driver",
0fad4ed7 1231 TWL6040_REG_HFRCTL, 4, 0, NULL, 0,
1bf84759
MOC		 1232 pga_event,
1233 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
f769bdf2 1234 SND_SOC_DAPM_OUT_DRV_E("Headset Left Driver",
1bf84759
MOC		 1235 TWL6040_REG_HSLCTL, 2, 0, NULL, 0,
1236 pga_event,
1237 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
f769bdf2 1238 SND_SOC_DAPM_OUT_DRV_E("Headset Right Driver",
1bf84759
MOC		 1239 TWL6040_REG_HSRCTL, 2, 0, NULL, 0,
1240 pga_event,
1241 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
871a05a7
JEC		 1242 SND_SOC_DAPM_SWITCH_E("Earphone Driver",
1243 SND_SOC_NOPM, 0, 0, &ep_driver_switch_controls,
1244 twl6040_power_mode_event,
1245 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
8ecbabd9
MLC		 1246
1247 /* Analog playback PGAs */
1248 SND_SOC_DAPM_PGA("HFDAC Left PGA",
1249 TWL6040_REG_HFLCTL, 1, 0, NULL, 0),
1250 SND_SOC_DAPM_PGA("HFDAC Right PGA",
1251 TWL6040_REG_HFRCTL, 1, 0, NULL, 0),
1252
1253};
1254
1255static const struct snd_soc_dapm_route intercon[] = {
1256 /* Capture path */
1257 {"Analog Left Capture Route", "Headset Mic", "HSMIC"},
1258 {"Analog Left Capture Route", "Main Mic", "MAINMIC"},
1259 {"Analog Left Capture Route", "Aux/FM Left", "AFML"},
1260
1261 {"Analog Right Capture Route", "Headset Mic", "HSMIC"},
1262 {"Analog Right Capture Route", "Sub Mic", "SUBMIC"},
1263 {"Analog Right Capture Route", "Aux/FM Right", "AFMR"},
1264
1265 {"MicAmpL", NULL, "Analog Left Capture Route"},
1266 {"MicAmpR", NULL, "Analog Right Capture Route"},
1267
1268 {"ADC Left", NULL, "MicAmpL"},
1269 {"ADC Right", NULL, "MicAmpR"},
1270
370a0314
JEC		 1271 /* AFM path */
1272 {"AFMAmpL", "NULL", "AFML"},
1273 {"AFMAmpR", "NULL", "AFMR"},
1274
1275 {"HS Left Playback", "HS DAC", "HSDAC Left"},
1276 {"HS Left Playback", "Line-In amp", "AFMAmpL"},
8ecbabd9 1277
370a0314
JEC		 1278 {"HS Right Playback", "HS DAC", "HSDAC Right"},
1279 {"HS Right Playback", "Line-In amp", "AFMAmpR"},
1280
1281 {"Headset Left Driver", "NULL", "HS Left Playback"},
1282 {"Headset Right Driver", "NULL", "HS Right Playback"},
8ecbabd9
MLC		 1283
1284 {"HSOL", NULL, "Headset Left Driver"},
1285 {"HSOR", NULL, "Headset Right Driver"},
1286
871a05a7
JEC		 1287 /* Earphone playback path */
1288 {"Earphone Driver", "Switch", "HSDAC Left"},
1289 {"EP", NULL, "Earphone Driver"},
1290
370a0314
JEC		 1291 {"HF Left Playback", "HF DAC", "HFDAC Left"},
1292 {"HF Left Playback", "Line-In amp", "AFMAmpL"},
1293
1294 {"HF Right Playback", "HF DAC", "HFDAC Right"},
1295 {"HF Right Playback", "Line-In amp", "AFMAmpR"},
8ecbabd9 1296
370a0314
JEC		 1297 {"HFDAC Left PGA", NULL, "HF Left Playback"},
1298 {"HFDAC Right PGA", NULL, "HF Right Playback"},
8ecbabd9
MLC		 1299
1300 {"Handsfree Left Driver", "Switch", "HFDAC Left PGA"},
1301 {"Handsfree Right Driver", "Switch", "HFDAC Right PGA"},
1302
1303 {"HFL", NULL, "Handsfree Left Driver"},
1304 {"HFR", NULL, "Handsfree Right Driver"},
1305};
1306
1307static int twl6040_add_widgets(struct snd_soc_codec *codec)
1308{
ce6120cc 1309 struct snd_soc_dapm_context *dapm = &codec->dapm;
8ecbabd9 1310
ce6120cc
LG		 1311 snd_soc_dapm_new_controls(dapm, twl6040_dapm_widgets,
1312 ARRAY_SIZE(twl6040_dapm_widgets));
1313 snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon));
1314 snd_soc_dapm_new_widgets(dapm);
8ecbabd9
MLC		 1315
1316 return 0;
1317}
1318
8ecbabd9
MLC		 1319static int twl6040_set_bias_level(struct snd_soc_codec *codec,
1320 enum snd_soc_bias_level level)
1321{
fb34d3d5 1322 struct twl6040 *twl6040 = codec->control_data;
d4a8ca24 1323 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
8ecbabd9
MLC		 1324 int ret;
1325
1326 switch (level) {
1327 case SND_SOC_BIAS_ON:
1328 break;
1329 case SND_SOC_BIAS_PREPARE:
1330 break;
1331 case SND_SOC_BIAS_STANDBY:
1332 if (priv->codec_powered)
1333 break;
1334
fb34d3d5
MLC		 1335 ret = twl6040_power(twl6040, 1);
1336 if (ret)
1337 return ret;
8ecbabd9 1338
fb34d3d5 1339 priv->codec_powered = 1;
8ecbabd9
MLC		 1340
1341 /* initialize vdd/vss registers with reg_cache */
1342 twl6040_init_vdd_regs(codec);
65b7cecc
OM		 1343
1344 /* Set external boost GPO */
1345 twl6040_write(codec, TWL6040_REG_GPOCTL, 0x02);
8ecbabd9
MLC		 1346 break;
1347 case SND_SOC_BIAS_OFF:
1348 if (!priv->codec_powered)
1349 break;
1350
fb34d3d5 1351 twl6040_power(twl6040, 0);
8ecbabd9
MLC		 1352 priv->codec_powered = 0;
1353 break;
1354 }
1355
fb34d3d5
MLC		 1356 /* get PLL and sysclk after power transition */
1357 priv->pll = twl6040_get_pll(twl6040);
1358 priv->sysclk = twl6040_get_sysclk(twl6040);
ce6120cc 1359 codec->dapm.bias_level = level;
8ecbabd9
MLC		 1360
1361 return 0;
1362}
1363
8ecbabd9
MLC		 1364static int twl6040_startup(struct snd_pcm_substream *substream,
1365 struct snd_soc_dai *dai)
1366{
1367 struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad 1368 struct snd_soc_codec *codec = rtd->codec;
d4a8ca24 1369 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
8ecbabd9 1370
8ecbabd9
MLC		 1371 snd_pcm_hw_constraint_list(substream->runtime, 0,
1372 SNDRV_PCM_HW_PARAM_RATE,
1373 priv->sysclk_constraints);
1374
1375 return 0;
1376}
1377
1378static int twl6040_hw_params(struct snd_pcm_substream *substream,
1379 struct snd_pcm_hw_params *params,
1380 struct snd_soc_dai *dai)
1381{
1382 struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad 1383 struct snd_soc_codec *codec = rtd->codec;
fb34d3d5 1384 struct twl6040 *twl6040 = codec->control_data;
d4a8ca24 1385 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
fb34d3d5
MLC		 1386 unsigned int sysclk;
1387 int rate, ret;
8ecbabd9
MLC		 1388
1389 /* nothing to do for high-perf pll, it supports only 48 kHz */
1390 if (priv->pll == TWL6040_HPPLL_ID)
1391 return 0;
1392
8ecbabd9
MLC		 1393 rate = params_rate(params);
1394 switch (rate) {
60ea4cec
OM		 1395 case 11250:
1396 case 22500:
1397 case 44100:
8ecbabd9 1398 case 88200:
fb34d3d5 1399 sysclk = 17640000;
8ecbabd9 1400 break;
60ea4cec
OM		 1401 case 8000:
1402 case 16000:
1403 case 32000:
1404 case 48000:
8ecbabd9 1405 case 96000:
fb34d3d5 1406 sysclk = 19200000;
8ecbabd9
MLC		 1407 break;
1408 default:
1409 dev_err(codec->dev, "unsupported rate %d\n", rate);
1410 return -EINVAL;
1411 }
1412
fb34d3d5
MLC		 1413 ret = twl6040_set_pll(twl6040, TWL6040_LPPLL_ID, priv->clk_in, sysclk);
1414 if (ret)
1415 return ret;
1416
1417 priv->sysclk = twl6040_get_sysclk(twl6040);
8ecbabd9
MLC		 1418
1419 return 0;
1420}
1421
4e624d06
OM		 1422static int twl6040_prepare(struct snd_pcm_substream *substream,
1423 struct snd_soc_dai *dai)
8ecbabd9
MLC		 1424{
1425 struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad 1426 struct snd_soc_codec *codec = rtd->codec;
d4a8ca24 1427 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
8ecbabd9 1428
4e624d06
OM		 1429 if (!priv->sysclk) {
1430 dev_err(codec->dev,
1431 "no mclk configured, call set_sysclk() on init\n");
1432 return -EINVAL;
1433 }
1434
1435 /*
1436 * capture is not supported at 17.64 MHz,
1437 * it's reserved for headset low-power playback scenario
1438 */
1439 if ((priv->sysclk == 17640000) &&
1440 substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
1441 dev_err(codec->dev,
1442 "capture mode is not supported at %dHz\n",
1443 priv->sysclk);
1444 return -EINVAL;
1445 }
1446
1447 if ((priv->sysclk == 17640000) && priv->non_lp) {
8ecbabd9
MLC		 1448 dev_err(codec->dev,
1449 "some enabled paths aren't supported at %dHz\n",
1450 priv->sysclk);
1451 return -EPERM;
8ecbabd9 1452 }
8ecbabd9
MLC		 1453 return 0;
1454}
1455
1456static int twl6040_set_dai_sysclk(struct snd_soc_dai *codec_dai,
1457 int clk_id, unsigned int freq, int dir)
1458{
1459 struct snd_soc_codec *codec = codec_dai->codec;
fb34d3d5 1460 struct twl6040 *twl6040 = codec->control_data;
d4a8ca24 1461 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
fb34d3d5 1462 int ret = 0;
8ecbabd9
MLC		 1463
1464 switch (clk_id) {
1465 case TWL6040_SYSCLK_SEL_LPPLL:
fb34d3d5
MLC		 1466 ret = twl6040_set_pll(twl6040, TWL6040_LPPLL_ID,
1467 freq, priv->sysclk);
1468 if (ret)
1469 return ret;
8ecbabd9
MLC		 1470 break;
1471 case TWL6040_SYSCLK_SEL_HPPLL:
fb34d3d5
MLC		 1472 ret = twl6040_set_pll(twl6040, TWL6040_HPPLL_ID,
1473 freq, priv->sysclk);
1474 if (ret)
1475 return ret;
8ecbabd9
MLC		 1476 break;
1477 default:
1478 dev_err(codec->dev, "unknown clk_id %d\n", clk_id);
1479 return -EINVAL;
1480 }
1481
fb34d3d5
MLC		 1482 priv->pll = twl6040_get_pll(twl6040);
1483 priv->clk_in = freq;
1484 priv->sysclk = twl6040_get_sysclk(twl6040);
1485
8ecbabd9
MLC		 1486 return 0;
1487}
1488
1489static struct snd_soc_dai_ops twl6040_dai_ops = {
1490 .startup = twl6040_startup,
1491 .hw_params = twl6040_hw_params,
4e624d06 1492 .prepare = twl6040_prepare,
8ecbabd9
MLC		 1493 .set_sysclk = twl6040_set_dai_sysclk,
1494};
1495
6510bdc3
LG		 1496static struct snd_soc_dai_driver twl6040_dai[] = {
1497{
1498 .name = "twl6040-ul",
1499 .capture = {
1500 .stream_name = "Capture",
1501 .channels_min = 1,
1502 .channels_max = 2,
1503 .rates = TWL6040_RATES,
1504 .formats = TWL6040_FORMATS,
1505 },
1506 .ops = &twl6040_dai_ops,
1507},
1508{
1509 .name = "twl6040-dl1",
8ecbabd9 1510 .playback = {
6510bdc3 1511 .stream_name = "Headset Playback",
8ecbabd9 1512 .channels_min = 1,
6510bdc3 1513 .channels_max = 2,
8ecbabd9
MLC		 1514 .rates = TWL6040_RATES,
1515 .formats = TWL6040_FORMATS,
1516 },
6510bdc3
LG		 1517 .ops = &twl6040_dai_ops,
1518},
1519{
1520 .name = "twl6040-dl2",
1521 .playback = {
1522 .stream_name = "Handsfree Playback",
8ecbabd9
MLC		 1523 .channels_min = 1,
1524 .channels_max = 2,
1525 .rates = TWL6040_RATES,
1526 .formats = TWL6040_FORMATS,
1527 },
1528 .ops = &twl6040_dai_ops,
6510bdc3
LG		 1529},
1530{
1531 .name = "twl6040-vib",
1532 .playback = {
1533 .stream_name = "Vibra Playback",
1534 .channels_min = 2,
1535 .channels_max = 2,
1536 .rates = SNDRV_PCM_RATE_CONTINUOUS,
1537 .formats = TWL6040_FORMATS,
1538 },
1539 .ops = &twl6040_dai_ops,
1540},
8ecbabd9 1541};
8ecbabd9
MLC		 1542
1543#ifdef CONFIG_PM
f0fba2ad 1544static int twl6040_suspend(struct snd_soc_codec *codec, pm_message_t state)
8ecbabd9 1545{
8ecbabd9
MLC		 1546 twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1547
1548 return 0;
1549}
1550
f0fba2ad 1551static int twl6040_resume(struct snd_soc_codec *codec)
8ecbabd9 1552{
8ecbabd9 1553 twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
6c311041 1554 twl6040_set_bias_level(codec, codec->dapm.suspend_bias_level);
8ecbabd9
MLC		 1555
1556 return 0;
1557}
1558#else
1559#define twl6040_suspend NULL
1560#define twl6040_resume NULL
1561#endif
1562
f0fba2ad 1563static int twl6040_probe(struct snd_soc_codec *codec)
8ecbabd9 1564{
8ecbabd9 1565 struct twl6040_data *priv;
1fbe9952 1566 struct twl4030_codec_data *pdata = dev_get_platdata(codec->dev);
2a433b9d
PU		 1567 struct platform_device *pdev = container_of(codec->dev,
1568 struct platform_device, dev);
8ecbabd9
MLC		 1569 int ret = 0;
1570
1571 priv = kzalloc(sizeof(struct twl6040_data), GFP_KERNEL);
1572 if (priv == NULL)
1573 return -ENOMEM;
f0fba2ad 1574 snd_soc_codec_set_drvdata(codec, priv);
8ecbabd9 1575
a2d2362e 1576 priv->codec = codec;
fb34d3d5 1577 codec->control_data = dev_get_drvdata(codec->dev->parent);
a2d2362e 1578
1fbe9952
ACG		 1579 if (pdata && pdata->hs_left_step && pdata->hs_right_step) {
1580 priv->hs_left_step = pdata->hs_left_step;
1581 priv->hs_right_step = pdata->hs_right_step;
1582 } else {
1583 priv->hs_left_step = 1;
1584 priv->hs_right_step = 1;
1585 }
1586
1587 if (pdata && pdata->hf_left_step && pdata->hf_right_step) {
1588 priv->hf_left_step = pdata->hf_left_step;
1589 priv->hf_right_step = pdata->hf_right_step;
1590 } else {
1591 priv->hf_left_step = 1;
1592 priv->hf_right_step = 1;
1593 }
1594
2a433b9d
PU		 1595 priv->plug_irq = platform_get_irq(pdev, 0);
1596 if (priv->plug_irq < 0) {
1597 dev_err(codec->dev, "invalid irq\n");
1598 ret = -EINVAL;
1599 goto work_err;
1600 }
1601
af958c72 1602 priv->sysclk_constraints = &lp_constraints;
a2d2362e 1603 priv->workqueue = create_singlethread_workqueue("twl6040-codec");
19aab08d
AL		 1604 if (!priv->workqueue) {
1605 ret = -ENOMEM;
a2d2362e 1606 goto work_err;
19aab08d 1607 }
a2d2362e
JEC		 1608
1609 INIT_DELAYED_WORK(&priv->delayed_work, twl6040_accessory_work);
1610
1611 mutex_init(&priv->mutex);
8ecbabd9 1612
1bf84759
MOC		 1613 init_completion(&priv->headset.ramp_done);
1614 init_completion(&priv->handsfree.ramp_done);
8ecbabd9 1615
1bf84759
MOC		 1616 priv->hf_workqueue = create_singlethread_workqueue("twl6040-hf");
1617 if (priv->hf_workqueue == NULL) {
1618 ret = -ENOMEM;
fb34d3d5 1619 goto hfwq_err;
1bf84759
MOC		 1620 }
1621 priv->hs_workqueue = create_singlethread_workqueue("twl6040-hs");
1622 if (priv->hs_workqueue == NULL) {
1623 ret = -ENOMEM;
fb34d3d5 1624 goto hswq_err;
1bf84759
MOC		 1625 }
1626
1627 INIT_DELAYED_WORK(&priv->hs_delayed_work, twl6040_pga_hs_work);
1628 INIT_DELAYED_WORK(&priv->hf_delayed_work, twl6040_pga_hf_work);
1629
2a433b9d
PU		 1630 ret = request_threaded_irq(priv->plug_irq, NULL, twl6040_audio_handler,
1631 0, "twl6040_irq_plug", codec);
fb34d3d5
MLC		 1632 if (ret) {
1633 dev_err(codec->dev, "PLUG IRQ request failed: %d\n", ret);
1634 goto plugirq_err;
1635 }
1636
1637 /* init vio registers */
1638 twl6040_init_vio_regs(codec);
1639
8ecbabd9
MLC		 1640 /* power on device */
1641 ret = twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1642 if (ret)
1bf84759 1643 goto bias_err;
8ecbabd9 1644
f0fba2ad
LG		 1645 snd_soc_add_controls(codec, twl6040_snd_controls,
1646 ARRAY_SIZE(twl6040_snd_controls));
1647 twl6040_add_widgets(codec);
8ecbabd9
MLC		 1648
1649 return 0;
1650
1bf84759 1651bias_err:
2a433b9d 1652 free_irq(priv->plug_irq, codec);
fb34d3d5 1653plugirq_err:
1bf84759 1654 destroy_workqueue(priv->hs_workqueue);
fb34d3d5 1655hswq_err:
1bf84759 1656 destroy_workqueue(priv->hf_workqueue);
fb34d3d5 1657hfwq_err:
a2d2362e
JEC		 1658 destroy_workqueue(priv->workqueue);
1659work_err:
8ecbabd9
MLC		 1660 kfree(priv);
1661 return ret;
1662}
1663
f0fba2ad 1664static int twl6040_remove(struct snd_soc_codec *codec)
8ecbabd9 1665{
f0fba2ad 1666 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
8ecbabd9 1667
f0fba2ad 1668 twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
2a433b9d 1669 free_irq(priv->plug_irq, codec);
a2d2362e 1670 destroy_workqueue(priv->workqueue);
1bf84759
MOC		 1671 destroy_workqueue(priv->hf_workqueue);
1672 destroy_workqueue(priv->hs_workqueue);
f0fba2ad 1673 kfree(priv);
8ecbabd9 1674
f0fba2ad
LG		 1675 return 0;
1676}
8ecbabd9 1677
f0fba2ad
LG		 1678static struct snd_soc_codec_driver soc_codec_dev_twl6040 = {
1679 .probe = twl6040_probe,
1680 .remove = twl6040_remove,
1681 .suspend = twl6040_suspend,
1682 .resume = twl6040_resume,
1683 .read = twl6040_read_reg_cache,
1684 .write = twl6040_write,
1685 .set_bias_level = twl6040_set_bias_level,
1686 .reg_cache_size = ARRAY_SIZE(twl6040_reg),
1687 .reg_word_size = sizeof(u8),
1688 .reg_cache_default = twl6040_reg,
1689};
1690
1691static int __devinit twl6040_codec_probe(struct platform_device *pdev)
1692{
6510bdc3
LG		 1693 return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_twl6040,
1694 twl6040_dai, ARRAY_SIZE(twl6040_dai));
f0fba2ad
LG		 1695}
1696
1697static int __devexit twl6040_codec_remove(struct platform_device *pdev)
1698{
1699 snd_soc_unregister_codec(&pdev->dev);
8ecbabd9
MLC		 1700 return 0;
1701}
1702
1703static struct platform_driver twl6040_codec_driver = {
1704 .driver = {
f0fba2ad 1705 .name = "twl6040-codec",
8ecbabd9
MLC		 1706 .owner = THIS_MODULE,
1707 },
1708 .probe = twl6040_codec_probe,
1709 .remove = __devexit_p(twl6040_codec_remove),
1710};
1711
1712static int __init twl6040_codec_init(void)
1713{
1714 return platform_driver_register(&twl6040_codec_driver);
1715}
1716module_init(twl6040_codec_init);
1717
1718static void __exit twl6040_codec_exit(void)
1719{
1720 platform_driver_unregister(&twl6040_codec_driver);
1721}
1722module_exit(twl6040_codec_exit);
1723
1724MODULE_DESCRIPTION("ASoC TWL6040 codec driver");
1725MODULE_AUTHOR("Misael Lopez Cruz");
1726MODULE_LICENSE("GPL");
Linux kernel - Deliverables
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