2 * ALSA SoC TWL6040 codec driver
4 * Author: Misael Lopez Cruz <x0052729@ti.com>
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.
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.
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
22 #include <linux/module.h>
23 #include <linux/moduleparam.h>
24 #include <linux/init.h>
25 #include <linux/delay.h>
27 #include <linux/platform_device.h>
28 #include <linux/slab.h>
29 #include <linux/i2c/twl.h>
30 #include <linux/mfd/twl6040.h>
32 #include <sound/core.h>
33 #include <sound/pcm.h>
34 #include <sound/pcm_params.h>
35 #include <sound/soc.h>
36 #include <sound/initval.h>
37 #include <sound/tlv.h>
41 #define TWL6040_RATES SNDRV_PCM_RATE_8000_96000
42 #define TWL6040_FORMATS (SNDRV_PCM_FMTBIT_S32_LE)
44 #define TWL6040_OUTHS_0dB 0x00
45 #define TWL6040_OUTHS_M30dB 0x0F
46 #define TWL6040_OUTHF_0dB 0x03
47 #define TWL6040_OUTHF_M52dB 0x1D
49 #define TWL6040_RAMP_NONE 0
50 #define TWL6040_RAMP_UP 1
51 #define TWL6040_RAMP_DOWN 2
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
60 struct twl6040_output {
66 unsigned int step_delay;
69 struct completion ramp_done;
72 struct twl6040_jack_data {
73 struct snd_soc_jack *jack;
77 /* codec private data */
84 struct snd_pcm_hw_constraint_list *sysclk_constraints;
85 struct twl6040_jack_data hs_jack;
86 struct snd_soc_codec *codec;
87 struct workqueue_struct *workqueue;
88 struct delayed_work delayed_work;
90 struct twl6040_output headset;
91 struct twl6040_output handsfree;
92 struct workqueue_struct *hf_workqueue;
93 struct workqueue_struct *hs_workqueue;
94 struct delayed_work hs_delayed_work;
95 struct delayed_work hf_delayed_work;
99 * twl6040 register cache & default register settings
101 static const u8 twl6040_reg[TWL6040_CACHEREGNUM] = {
102 0x00, /* not used 0x00 */
103 0x4B, /* TWL6040_ASICID (ro) 0x01 */
104 0x00, /* TWL6040_ASICREV (ro) 0x02 */
105 0x00, /* TWL6040_INTID 0x03 */
106 0x00, /* TWL6040_INTMR 0x04 */
107 0x00, /* TWL6040_NCPCTRL 0x05 */
108 0x00, /* TWL6040_LDOCTL 0x06 */
109 0x60, /* TWL6040_HPPLLCTL 0x07 */
110 0x00, /* TWL6040_LPPLLCTL 0x08 */
111 0x4A, /* TWL6040_LPPLLDIV 0x09 */
112 0x00, /* TWL6040_AMICBCTL 0x0A */
113 0x00, /* TWL6040_DMICBCTL 0x0B */
114 0x18, /* TWL6040_MICLCTL 0x0C - No input selected on Left Mic */
115 0x18, /* TWL6040_MICRCTL 0x0D - No input selected on Right Mic */
116 0x00, /* TWL6040_MICGAIN 0x0E */
117 0x1B, /* TWL6040_LINEGAIN 0x0F */
118 0x00, /* TWL6040_HSLCTL 0x10 */
119 0x00, /* TWL6040_HSRCTL 0x11 */
120 0x00, /* TWL6040_HSGAIN 0x12 */
121 0x00, /* TWL6040_EARCTL 0x13 */
122 0x00, /* TWL6040_HFLCTL 0x14 */
123 0x00, /* TWL6040_HFLGAIN 0x15 */
124 0x00, /* TWL6040_HFRCTL 0x16 */
125 0x00, /* TWL6040_HFRGAIN 0x17 */
126 0x00, /* TWL6040_VIBCTLL 0x18 */
127 0x00, /* TWL6040_VIBDATL 0x19 */
128 0x00, /* TWL6040_VIBCTLR 0x1A */
129 0x00, /* TWL6040_VIBDATR 0x1B */
130 0x00, /* TWL6040_HKCTL1 0x1C */
131 0x00, /* TWL6040_HKCTL2 0x1D */
132 0x00, /* TWL6040_GPOCTL 0x1E */
133 0x00, /* TWL6040_ALB 0x1F */
134 0x00, /* TWL6040_DLB 0x20 */
135 0x00, /* not used 0x21 */
136 0x00, /* not used 0x22 */
137 0x00, /* not used 0x23 */
138 0x00, /* not used 0x24 */
139 0x00, /* not used 0x25 */
140 0x00, /* not used 0x26 */
141 0x00, /* not used 0x27 */
142 0x00, /* TWL6040_TRIM1 0x28 */
143 0x00, /* TWL6040_TRIM2 0x29 */
144 0x00, /* TWL6040_TRIM3 0x2A */
145 0x00, /* TWL6040_HSOTRIM 0x2B */
146 0x00, /* TWL6040_HFOTRIM 0x2C */
147 0x09, /* TWL6040_ACCCTL 0x2D */
148 0x00, /* TWL6040_STATUS (ro) 0x2E */
152 * twl6040 vio/gnd registers:
153 * registers under vio/gnd supply can be accessed
154 * before the power-up sequence, after NRESPWRON goes high
156 static const int twl6040_vio_reg[TWL6040_VIOREGNUM] = {
163 TWL6040_REG_AMICBCTL,
164 TWL6040_REG_DMICBCTL,
178 * twl6040 vdd/vss registers:
179 * registers under vdd/vss supplies can only be accessed
180 * after the power-up sequence
182 static const int twl6040_vdd_reg[TWL6040_VDDREGNUM] = {
183 TWL6040_REG_HPPLLCTL,
184 TWL6040_REG_LPPLLCTL,
185 TWL6040_REG_LPPLLDIV,
189 TWL6040_REG_LINEGAIN,
207 * read twl6040 register cache
209 static inline unsigned int twl6040_read_reg_cache(struct snd_soc_codec *codec,
212 u8 *cache = codec->reg_cache;
214 if (reg >= TWL6040_CACHEREGNUM)
221 * write twl6040 register cache
223 static inline void twl6040_write_reg_cache(struct snd_soc_codec *codec,
226 u8 *cache = codec->reg_cache;
228 if (reg >= TWL6040_CACHEREGNUM)
234 * read from twl6040 hardware register
236 static int twl6040_read_reg_volatile(struct snd_soc_codec *codec,
239 struct twl6040 *twl6040 = codec->control_data;
242 if (reg >= TWL6040_CACHEREGNUM)
245 value = twl6040_reg_read(twl6040, reg);
246 twl6040_write_reg_cache(codec, reg, value);
252 * write to the twl6040 register space
254 static int twl6040_write(struct snd_soc_codec *codec,
255 unsigned int reg, unsigned int value)
257 struct twl6040 *twl6040 = codec->control_data;
259 if (reg >= TWL6040_CACHEREGNUM)
262 twl6040_write_reg_cache(codec, reg, value);
263 return twl6040_reg_write(twl6040, reg, value);
266 static void twl6040_init_vio_regs(struct snd_soc_codec *codec)
268 u8 *cache = codec->reg_cache;
271 for (i = 0; i < TWL6040_VIOREGNUM; i++) {
272 reg = twl6040_vio_reg[i];
274 * skip read-only registers (ASICID, ASICREV, STATUS)
275 * and registers shared among MFD children
278 case TWL6040_REG_ASICID:
279 case TWL6040_REG_ASICREV:
280 case TWL6040_REG_INTID:
281 case TWL6040_REG_INTMR:
282 case TWL6040_REG_NCPCTL:
283 case TWL6040_REG_LDOCTL:
284 case TWL6040_REG_GPOCTL:
285 case TWL6040_REG_ACCCTL:
286 case TWL6040_REG_STATUS:
291 twl6040_write(codec, reg, cache[reg]);
295 static void twl6040_init_vdd_regs(struct snd_soc_codec *codec)
297 u8 *cache = codec->reg_cache;
300 for (i = 0; i < TWL6040_VDDREGNUM; i++) {
301 reg = twl6040_vdd_reg[i];
302 /* skip vibra and PLL registers */
304 case TWL6040_REG_VIBCTLL:
305 case TWL6040_REG_VIBDATL:
306 case TWL6040_REG_VIBCTLR:
307 case TWL6040_REG_VIBDATR:
308 case TWL6040_REG_HPPLLCTL:
309 case TWL6040_REG_LPPLLCTL:
310 case TWL6040_REG_LPPLLDIV:
316 twl6040_write(codec, reg, cache[reg]);
321 * Ramp HS PGA volume to minimise pops at stream startup and shutdown.
323 static inline int twl6040_hs_ramp_step(struct snd_soc_codec *codec,
324 unsigned int left_step, unsigned int right_step)
327 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
328 struct twl6040_output *headset = &priv->headset;
329 int left_complete = 0, right_complete = 0;
333 left_step = (left_step > 0xF) ? 0xF : left_step;
334 reg = twl6040_read_reg_cache(codec, TWL6040_REG_HSGAIN);
335 val = (~reg & TWL6040_HSL_VOL_MASK);
337 if (headset->ramp == TWL6040_RAMP_UP) {
339 if (val < headset->left_vol) {
341 reg &= ~TWL6040_HSL_VOL_MASK;
342 twl6040_write(codec, TWL6040_REG_HSGAIN,
343 (reg | (~val & TWL6040_HSL_VOL_MASK)));
347 } else if (headset->ramp == TWL6040_RAMP_DOWN) {
351 reg &= ~TWL6040_HSL_VOL_MASK;
352 twl6040_write(codec, TWL6040_REG_HSGAIN, reg |
353 (~val & TWL6040_HSL_VOL_MASK));
360 right_step = (right_step > 0xF) ? 0xF : right_step;
361 reg = twl6040_read_reg_cache(codec, TWL6040_REG_HSGAIN);
362 val = (~reg & TWL6040_HSR_VOL_MASK) >> TWL6040_HSR_VOL_SHIFT;
364 if (headset->ramp == TWL6040_RAMP_UP) {
366 if (val < headset->right_vol) {
368 reg &= ~TWL6040_HSR_VOL_MASK;
369 twl6040_write(codec, TWL6040_REG_HSGAIN,
370 (reg | (~val << TWL6040_HSR_VOL_SHIFT)));
374 } else if (headset->ramp == TWL6040_RAMP_DOWN) {
378 reg &= ~TWL6040_HSR_VOL_MASK;
379 twl6040_write(codec, TWL6040_REG_HSGAIN,
380 reg | (~val << TWL6040_HSR_VOL_SHIFT));
386 return left_complete & right_complete;
390 * Ramp HF PGA volume to minimise pops at stream startup and shutdown.
392 static inline int twl6040_hf_ramp_step(struct snd_soc_codec *codec,
393 unsigned int left_step, unsigned int right_step)
395 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
396 struct twl6040_output *handsfree = &priv->handsfree;
397 int left_complete = 0, right_complete = 0;
401 left_step = (left_step > 0x1D) ? 0x1D : left_step;
402 reg = twl6040_read_reg_cache(codec, TWL6040_REG_HFLGAIN);
404 val = (reg & TWL6040_HF_VOL_MASK);
405 if (handsfree->ramp == TWL6040_RAMP_UP) {
407 if (val < handsfree->left_vol) {
409 reg &= ~TWL6040_HF_VOL_MASK;
410 twl6040_write(codec, TWL6040_REG_HFLGAIN,
415 } else if (handsfree->ramp == TWL6040_RAMP_DOWN) {
419 reg &= ~TWL6040_HF_VOL_MASK;
420 twl6040_write(codec, TWL6040_REG_HFLGAIN,
428 right_step = (right_step > 0x1D) ? 0x1D : right_step;
429 reg = twl6040_read_reg_cache(codec, TWL6040_REG_HFRGAIN);
431 val = (reg & TWL6040_HF_VOL_MASK);
432 if (handsfree->ramp == TWL6040_RAMP_UP) {
434 if (val < handsfree->right_vol) {
436 reg &= ~TWL6040_HF_VOL_MASK;
437 twl6040_write(codec, TWL6040_REG_HFRGAIN,
442 } else if (handsfree->ramp == TWL6040_RAMP_DOWN) {
446 reg &= ~TWL6040_HF_VOL_MASK;
447 twl6040_write(codec, TWL6040_REG_HFRGAIN,
452 return left_complete & right_complete;
456 * This work ramps both output PGAs at stream start/stop time to
457 * minimise pop associated with DAPM power switching.
459 static void twl6040_pga_hs_work(struct work_struct *work)
461 struct twl6040_data *priv =
462 container_of(work, struct twl6040_data, hs_delayed_work.work);
463 struct snd_soc_codec *codec = priv->codec;
464 struct twl6040_output *headset = &priv->headset;
465 unsigned int delay = headset->step_delay;
466 int i, headset_complete;
468 /* do we need to ramp at all ? */
469 if (headset->ramp == TWL6040_RAMP_NONE)
472 /* HS PGA volumes have 4 bits of resolution to ramp */
473 for (i = 0; i <= 16; i++) {
474 headset_complete = 1;
475 if (headset->ramp != TWL6040_RAMP_NONE)
476 headset_complete = twl6040_hs_ramp_step(codec,
478 headset->right_step);
480 /* ramp finished ? */
481 if (headset_complete)
485 * TODO: tune: delay is longer over 0dB
486 * as increases are larger.
489 schedule_timeout_interruptible(msecs_to_jiffies(delay +
492 schedule_timeout_interruptible(msecs_to_jiffies(delay));
495 if (headset->ramp == TWL6040_RAMP_DOWN) {
497 complete(&headset->ramp_done);
501 headset->ramp = TWL6040_RAMP_NONE;
504 static void twl6040_pga_hf_work(struct work_struct *work)
506 struct twl6040_data *priv =
507 container_of(work, struct twl6040_data, hf_delayed_work.work);
508 struct snd_soc_codec *codec = priv->codec;
509 struct twl6040_output *handsfree = &priv->handsfree;
510 unsigned int delay = handsfree->step_delay;
511 int i, handsfree_complete;
513 /* do we need to ramp at all ? */
514 if (handsfree->ramp == TWL6040_RAMP_NONE)
517 /* HF PGA volumes have 5 bits of resolution to ramp */
518 for (i = 0; i <= 32; i++) {
519 handsfree_complete = 1;
520 if (handsfree->ramp != TWL6040_RAMP_NONE)
521 handsfree_complete = twl6040_hf_ramp_step(codec,
522 handsfree->left_step,
523 handsfree->right_step);
525 /* ramp finished ? */
526 if (handsfree_complete)
530 * TODO: tune: delay is longer over 0dB
531 * as increases are larger.
534 schedule_timeout_interruptible(msecs_to_jiffies(delay +
537 schedule_timeout_interruptible(msecs_to_jiffies(delay));
541 if (handsfree->ramp == TWL6040_RAMP_DOWN) {
542 handsfree->active = 0;
543 complete(&handsfree->ramp_done);
545 handsfree->active = 1;
546 handsfree->ramp = TWL6040_RAMP_NONE;
549 static int pga_event(struct snd_soc_dapm_widget *w,
550 struct snd_kcontrol *kcontrol, int event)
552 struct snd_soc_codec *codec = w->codec;
553 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
554 struct twl6040_output *out;
555 struct delayed_work *work;
556 struct workqueue_struct *queue;
561 out = &priv->headset;
562 work = &priv->hs_delayed_work;
563 queue = priv->hs_workqueue;
564 out->step_delay = 5; /* 5 ms between volume ramp steps */
567 out = &priv->handsfree;
568 work = &priv->hf_delayed_work;
569 queue = priv->hf_workqueue;
570 out->step_delay = 5; /* 5 ms between volume ramp steps */
571 if (SND_SOC_DAPM_EVENT_ON(event))
581 case SND_SOC_DAPM_POST_PMU:
585 /* don't use volume ramp for power-up */
586 out->left_step = out->left_vol;
587 out->right_step = out->right_vol;
589 if (!delayed_work_pending(work)) {
590 out->ramp = TWL6040_RAMP_UP;
591 queue_delayed_work(queue, work,
592 msecs_to_jiffies(1));
596 case SND_SOC_DAPM_PRE_PMD:
600 if (!delayed_work_pending(work)) {
601 /* use volume ramp for power-down */
604 out->ramp = TWL6040_RAMP_DOWN;
605 INIT_COMPLETION(out->ramp_done);
607 queue_delayed_work(queue, work,
608 msecs_to_jiffies(1));
610 wait_for_completion_timeout(&out->ramp_done,
611 msecs_to_jiffies(2000));
619 /* set headset dac and driver power mode */
620 static int headset_power_mode(struct snd_soc_codec *codec, int high_perf)
623 int mask = TWL6040_HSDRVMODEL | TWL6040_HSDACMODEL;
625 hslctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSLCTL);
626 hsrctl = twl6040_read_reg_cache(codec, TWL6040_REG_HSRCTL);
636 twl6040_write(codec, TWL6040_REG_HSLCTL, hslctl);
637 twl6040_write(codec, TWL6040_REG_HSRCTL, hsrctl);
642 static int twl6040_hs_dac_event(struct snd_soc_dapm_widget *w,
643 struct snd_kcontrol *kcontrol, int event)
649 static int twl6040_power_mode_event(struct snd_soc_dapm_widget *w,
650 struct snd_kcontrol *kcontrol, int event)
652 struct snd_soc_codec *codec = w->codec;
653 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
655 if (SND_SOC_DAPM_EVENT_ON(event))
665 static void twl6040_hs_jack_report(struct snd_soc_codec *codec,
666 struct snd_soc_jack *jack, int report)
668 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
671 mutex_lock(&priv->mutex);
674 status = twl6040_read_reg_volatile(codec, TWL6040_REG_STATUS);
675 if (status & TWL6040_PLUGCOMP)
676 snd_soc_jack_report(jack, report, report);
678 snd_soc_jack_report(jack, 0, report);
680 mutex_unlock(&priv->mutex);
683 void twl6040_hs_jack_detect(struct snd_soc_codec *codec,
684 struct snd_soc_jack *jack, int report)
686 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
687 struct twl6040_jack_data *hs_jack = &priv->hs_jack;
689 hs_jack->jack = jack;
690 hs_jack->report = report;
692 twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
694 EXPORT_SYMBOL_GPL(twl6040_hs_jack_detect);
696 static void twl6040_accessory_work(struct work_struct *work)
698 struct twl6040_data *priv = container_of(work,
699 struct twl6040_data, delayed_work.work);
700 struct snd_soc_codec *codec = priv->codec;
701 struct twl6040_jack_data *hs_jack = &priv->hs_jack;
703 twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
706 /* audio interrupt handler */
707 static irqreturn_t twl6040_audio_handler(int irq, void *data)
709 struct snd_soc_codec *codec = data;
710 struct twl6040 *twl6040 = codec->control_data;
711 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
714 intid = twl6040_reg_read(twl6040, TWL6040_REG_INTID);
716 if ((intid & TWL6040_PLUGINT) || (intid & TWL6040_UNPLUGINT))
717 queue_delayed_work(priv->workqueue, &priv->delayed_work,
718 msecs_to_jiffies(200));
723 static int twl6040_put_volsw(struct snd_kcontrol *kcontrol,
724 struct snd_ctl_elem_value *ucontrol)
726 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
727 struct twl6040_data *twl6040_priv = snd_soc_codec_get_drvdata(codec);
728 struct twl6040_output *out = NULL;
729 struct soc_mixer_control *mc =
730 (struct soc_mixer_control *)kcontrol->private_value;
732 unsigned int reg = mc->reg;
734 /* For HS and HF we shadow the values and only actually write
735 * them out when active in order to ensure the amplifier comes on
736 * as quietly as possible. */
738 case TWL6040_REG_HSGAIN:
739 out = &twl6040_priv->headset;
746 out->left_vol = ucontrol->value.integer.value[0];
747 out->right_vol = ucontrol->value.integer.value[1];
752 ret = snd_soc_put_volsw(kcontrol, ucontrol);
759 static int twl6040_get_volsw(struct snd_kcontrol *kcontrol,
760 struct snd_ctl_elem_value *ucontrol)
762 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
763 struct twl6040_data *twl6040_priv = snd_soc_codec_get_drvdata(codec);
764 struct twl6040_output *out = &twl6040_priv->headset;
765 struct soc_mixer_control *mc =
766 (struct soc_mixer_control *)kcontrol->private_value;
767 unsigned int reg = mc->reg;
770 case TWL6040_REG_HSGAIN:
771 out = &twl6040_priv->headset;
772 ucontrol->value.integer.value[0] = out->left_vol;
773 ucontrol->value.integer.value[1] = out->right_vol;
780 return snd_soc_get_volsw(kcontrol, ucontrol);
783 static int twl6040_put_volsw_2r_vu(struct snd_kcontrol *kcontrol,
784 struct snd_ctl_elem_value *ucontrol)
786 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
787 struct twl6040_data *twl6040_priv = snd_soc_codec_get_drvdata(codec);
788 struct twl6040_output *out = NULL;
789 struct soc_mixer_control *mc =
790 (struct soc_mixer_control *)kcontrol->private_value;
792 unsigned int reg = mc->reg;
794 /* For HS and HF we shadow the values and only actually write
795 * them out when active in order to ensure the amplifier comes on
796 * as quietly as possible. */
798 case TWL6040_REG_HFLGAIN:
799 case TWL6040_REG_HFRGAIN:
800 out = &twl6040_priv->handsfree;
807 out->left_vol = ucontrol->value.integer.value[0];
808 out->right_vol = ucontrol->value.integer.value[1];
813 ret = snd_soc_put_volsw_2r(kcontrol, ucontrol);
820 static int twl6040_get_volsw_2r(struct snd_kcontrol *kcontrol,
821 struct snd_ctl_elem_value *ucontrol)
823 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
824 struct twl6040_data *twl6040_priv = snd_soc_codec_get_drvdata(codec);
825 struct twl6040_output *out = &twl6040_priv->handsfree;
826 struct soc_mixer_control *mc =
827 (struct soc_mixer_control *)kcontrol->private_value;
828 unsigned int reg = mc->reg;
830 /* If these are cached registers use the cache */
832 case TWL6040_REG_HFLGAIN:
833 case TWL6040_REG_HFRGAIN:
834 out = &twl6040_priv->handsfree;
835 ucontrol->value.integer.value[0] = out->left_vol;
836 ucontrol->value.integer.value[1] = out->right_vol;
843 return snd_soc_get_volsw_2r(kcontrol, ucontrol);
846 /* double control with volume update */
847 #define SOC_TWL6040_DOUBLE_TLV(xname, xreg, shift_left, shift_right, xmax,\
849 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
850 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ |\
851 SNDRV_CTL_ELEM_ACCESS_READWRITE,\
852 .tlv.p = (tlv_array), \
853 .info = snd_soc_info_volsw, .get = twl6040_get_volsw, \
854 .put = twl6040_put_volsw, \
855 .private_value = (unsigned long)&(struct soc_mixer_control) \
856 {.reg = xreg, .shift = shift_left, .rshift = shift_right,\
857 .max = xmax, .platform_max = xmax, .invert = xinvert} }
859 /* double control with volume update */
860 #define SOC_TWL6040_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax,\
862 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname),\
863 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
864 SNDRV_CTL_ELEM_ACCESS_READWRITE | \
865 SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
866 .tlv.p = (tlv_array), \
867 .info = snd_soc_info_volsw_2r, \
868 .get = twl6040_get_volsw_2r, .put = twl6040_put_volsw_2r_vu, \
869 .private_value = (unsigned long)&(struct soc_mixer_control) \
870 {.reg = reg_left, .rreg = reg_right, .shift = xshift, \
871 .rshift = xshift, .max = xmax, .invert = xinvert}, }
874 * MICATT volume control:
875 * from -6 to 0 dB in 6 dB steps
877 static DECLARE_TLV_DB_SCALE(mic_preamp_tlv, -600, 600, 0);
880 * MICGAIN volume control:
881 * from -6 to 30 dB in 6 dB steps
883 static DECLARE_TLV_DB_SCALE(mic_amp_tlv, -600, 600, 0);
886 * AFMGAIN volume control:
887 * from -18 to 24 dB in 6 dB steps
889 static DECLARE_TLV_DB_SCALE(afm_amp_tlv, -1800, 600, 0);
892 * HSGAIN volume control:
893 * from -30 to 0 dB in 2 dB steps
895 static DECLARE_TLV_DB_SCALE(hs_tlv, -3000, 200, 0);
898 * HFGAIN volume control:
899 * from -52 to 6 dB in 2 dB steps
901 static DECLARE_TLV_DB_SCALE(hf_tlv, -5200, 200, 0);
904 * EPGAIN volume control:
905 * from -24 to 6 dB in 2 dB steps
907 static DECLARE_TLV_DB_SCALE(ep_tlv, -2400, 200, 0);
909 /* Left analog microphone selection */
910 static const char *twl6040_amicl_texts[] =
911 {"Headset Mic", "Main Mic", "Aux/FM Left", "Off"};
913 /* Right analog microphone selection */
914 static const char *twl6040_amicr_texts[] =
915 {"Headset Mic", "Sub Mic", "Aux/FM Right", "Off"};
917 static const struct soc_enum twl6040_enum[] = {
918 SOC_ENUM_SINGLE(TWL6040_REG_MICLCTL, 3, 4, twl6040_amicl_texts),
919 SOC_ENUM_SINGLE(TWL6040_REG_MICRCTL, 3, 4, twl6040_amicr_texts),
922 static const char *twl6040_hs_texts[] = {
923 "Off", "HS DAC", "Line-In amp"
926 static const struct soc_enum twl6040_hs_enum[] = {
927 SOC_ENUM_SINGLE(TWL6040_REG_HSLCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
929 SOC_ENUM_SINGLE(TWL6040_REG_HSRCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
933 static const char *twl6040_hf_texts[] = {
934 "Off", "HF DAC", "Line-In amp"
937 static const struct soc_enum twl6040_hf_enum[] = {
938 SOC_ENUM_SINGLE(TWL6040_REG_HFLCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
940 SOC_ENUM_SINGLE(TWL6040_REG_HFRCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
944 static const struct snd_kcontrol_new amicl_control =
945 SOC_DAPM_ENUM("Route", twl6040_enum[0]);
947 static const struct snd_kcontrol_new amicr_control =
948 SOC_DAPM_ENUM("Route", twl6040_enum[1]);
950 /* Headset DAC playback switches */
951 static const struct snd_kcontrol_new hsl_mux_controls =
952 SOC_DAPM_ENUM("Route", twl6040_hs_enum[0]);
954 static const struct snd_kcontrol_new hsr_mux_controls =
955 SOC_DAPM_ENUM("Route", twl6040_hs_enum[1]);
957 /* Handsfree DAC playback switches */
958 static const struct snd_kcontrol_new hfl_mux_controls =
959 SOC_DAPM_ENUM("Route", twl6040_hf_enum[0]);
961 static const struct snd_kcontrol_new hfr_mux_controls =
962 SOC_DAPM_ENUM("Route", twl6040_hf_enum[1]);
964 static const struct snd_kcontrol_new ep_driver_switch_controls =
965 SOC_DAPM_SINGLE("Switch", TWL6040_REG_EARCTL, 0, 1, 0);
967 static const struct snd_kcontrol_new twl6040_snd_controls[] = {
969 SOC_DOUBLE_TLV("Capture Preamplifier Volume",
970 TWL6040_REG_MICGAIN, 6, 7, 1, 1, mic_preamp_tlv),
971 SOC_DOUBLE_TLV("Capture Volume",
972 TWL6040_REG_MICGAIN, 0, 3, 4, 0, mic_amp_tlv),
975 SOC_DOUBLE_TLV("Aux FM Volume",
976 TWL6040_REG_LINEGAIN, 0, 3, 7, 0, afm_amp_tlv),
979 SOC_TWL6040_DOUBLE_TLV("Headset Playback Volume",
980 TWL6040_REG_HSGAIN, 0, 4, 0xF, 1, hs_tlv),
981 SOC_TWL6040_DOUBLE_R_TLV("Handsfree Playback Volume",
982 TWL6040_REG_HFLGAIN, TWL6040_REG_HFRGAIN, 0, 0x1D, 1, hf_tlv),
983 SOC_SINGLE_TLV("Earphone Playback Volume",
984 TWL6040_REG_EARCTL, 1, 0xF, 1, ep_tlv),
987 static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
989 SND_SOC_DAPM_INPUT("MAINMIC"),
990 SND_SOC_DAPM_INPUT("HSMIC"),
991 SND_SOC_DAPM_INPUT("SUBMIC"),
992 SND_SOC_DAPM_INPUT("AFML"),
993 SND_SOC_DAPM_INPUT("AFMR"),
996 SND_SOC_DAPM_OUTPUT("HSOL"),
997 SND_SOC_DAPM_OUTPUT("HSOR"),
998 SND_SOC_DAPM_OUTPUT("HFL"),
999 SND_SOC_DAPM_OUTPUT("HFR"),
1000 SND_SOC_DAPM_OUTPUT("EP"),
1002 /* Analog input muxes for the capture amplifiers */
1003 SND_SOC_DAPM_MUX("Analog Left Capture Route",
1004 SND_SOC_NOPM, 0, 0, &amicl_control),
1005 SND_SOC_DAPM_MUX("Analog Right Capture Route",
1006 SND_SOC_NOPM, 0, 0, &amicr_control),
1008 /* Analog capture PGAs */
1009 SND_SOC_DAPM_PGA("MicAmpL",
1010 TWL6040_REG_MICLCTL, 0, 0, NULL, 0),
1011 SND_SOC_DAPM_PGA("MicAmpR",
1012 TWL6040_REG_MICRCTL, 0, 0, NULL, 0),
1014 /* Auxiliary FM PGAs */
1015 SND_SOC_DAPM_PGA("AFMAmpL",
1016 TWL6040_REG_MICLCTL, 1, 0, NULL, 0),
1017 SND_SOC_DAPM_PGA("AFMAmpR",
1018 TWL6040_REG_MICRCTL, 1, 0, NULL, 0),
1021 SND_SOC_DAPM_ADC("ADC Left", "Left Front Capture",
1022 TWL6040_REG_MICLCTL, 2, 0),
1023 SND_SOC_DAPM_ADC("ADC Right", "Right Front Capture",
1024 TWL6040_REG_MICRCTL, 2, 0),
1026 /* Microphone bias */
1027 SND_SOC_DAPM_MICBIAS("Headset Mic Bias",
1028 TWL6040_REG_AMICBCTL, 0, 0),
1029 SND_SOC_DAPM_MICBIAS("Main Mic Bias",
1030 TWL6040_REG_AMICBCTL, 4, 0),
1031 SND_SOC_DAPM_MICBIAS("Digital Mic1 Bias",
1032 TWL6040_REG_DMICBCTL, 0, 0),
1033 SND_SOC_DAPM_MICBIAS("Digital Mic2 Bias",
1034 TWL6040_REG_DMICBCTL, 4, 0),
1037 SND_SOC_DAPM_DAC_E("HSDAC Left", "Headset Playback",
1038 TWL6040_REG_HSLCTL, 0, 0,
1039 twl6040_hs_dac_event,
1040 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1041 SND_SOC_DAPM_DAC_E("HSDAC Right", "Headset Playback",
1042 TWL6040_REG_HSRCTL, 0, 0,
1043 twl6040_hs_dac_event,
1044 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1045 SND_SOC_DAPM_DAC_E("HFDAC Left", "Handsfree Playback",
1046 TWL6040_REG_HFLCTL, 0, 0,
1047 twl6040_power_mode_event,
1048 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1049 SND_SOC_DAPM_DAC_E("HFDAC Right", "Handsfree Playback",
1050 TWL6040_REG_HFRCTL, 0, 0,
1051 twl6040_power_mode_event,
1052 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1054 SND_SOC_DAPM_MUX("HF Left Playback",
1055 SND_SOC_NOPM, 0, 0, &hfl_mux_controls),
1056 SND_SOC_DAPM_MUX("HF Right Playback",
1057 SND_SOC_NOPM, 0, 0, &hfr_mux_controls),
1058 /* Analog playback Muxes */
1059 SND_SOC_DAPM_MUX("HS Left Playback",
1060 SND_SOC_NOPM, 0, 0, &hsl_mux_controls),
1061 SND_SOC_DAPM_MUX("HS Right Playback",
1062 SND_SOC_NOPM, 0, 0, &hsr_mux_controls),
1064 /* Analog playback drivers */
1065 SND_SOC_DAPM_OUT_DRV_E("Handsfree Left Driver",
1066 TWL6040_REG_HFLCTL, 4, 0, NULL, 0,
1068 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
1069 SND_SOC_DAPM_OUT_DRV_E("Handsfree Right Driver",
1070 TWL6040_REG_HFRCTL, 4, 0, NULL, 0,
1072 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
1073 SND_SOC_DAPM_OUT_DRV_E("Headset Left Driver",
1074 TWL6040_REG_HSLCTL, 2, 0, NULL, 0,
1076 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
1077 SND_SOC_DAPM_OUT_DRV_E("Headset Right Driver",
1078 TWL6040_REG_HSRCTL, 2, 0, NULL, 0,
1080 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
1081 SND_SOC_DAPM_SWITCH_E("Earphone Driver",
1082 SND_SOC_NOPM, 0, 0, &ep_driver_switch_controls,
1083 twl6040_power_mode_event,
1084 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1086 /* Analog playback PGAs */
1087 SND_SOC_DAPM_PGA("HFDAC Left PGA",
1088 TWL6040_REG_HFLCTL, 1, 0, NULL, 0),
1089 SND_SOC_DAPM_PGA("HFDAC Right PGA",
1090 TWL6040_REG_HFRCTL, 1, 0, NULL, 0),
1094 static const struct snd_soc_dapm_route intercon[] = {
1096 {"Analog Left Capture Route", "Headset Mic", "HSMIC"},
1097 {"Analog Left Capture Route", "Main Mic", "MAINMIC"},
1098 {"Analog Left Capture Route", "Aux/FM Left", "AFML"},
1100 {"Analog Right Capture Route", "Headset Mic", "HSMIC"},
1101 {"Analog Right Capture Route", "Sub Mic", "SUBMIC"},
1102 {"Analog Right Capture Route", "Aux/FM Right", "AFMR"},
1104 {"MicAmpL", NULL, "Analog Left Capture Route"},
1105 {"MicAmpR", NULL, "Analog Right Capture Route"},
1107 {"ADC Left", NULL, "MicAmpL"},
1108 {"ADC Right", NULL, "MicAmpR"},
1111 {"AFMAmpL", "NULL", "AFML"},
1112 {"AFMAmpR", "NULL", "AFMR"},
1114 {"HS Left Playback", "HS DAC", "HSDAC Left"},
1115 {"HS Left Playback", "Line-In amp", "AFMAmpL"},
1117 {"HS Right Playback", "HS DAC", "HSDAC Right"},
1118 {"HS Right Playback", "Line-In amp", "AFMAmpR"},
1120 {"Headset Left Driver", "NULL", "HS Left Playback"},
1121 {"Headset Right Driver", "NULL", "HS Right Playback"},
1123 {"HSOL", NULL, "Headset Left Driver"},
1124 {"HSOR", NULL, "Headset Right Driver"},
1126 /* Earphone playback path */
1127 {"Earphone Driver", "Switch", "HSDAC Left"},
1128 {"EP", NULL, "Earphone Driver"},
1130 {"HF Left Playback", "HF DAC", "HFDAC Left"},
1131 {"HF Left Playback", "Line-In amp", "AFMAmpL"},
1133 {"HF Right Playback", "HF DAC", "HFDAC Right"},
1134 {"HF Right Playback", "Line-In amp", "AFMAmpR"},
1136 {"HFDAC Left PGA", NULL, "HF Left Playback"},
1137 {"HFDAC Right PGA", NULL, "HF Right Playback"},
1139 {"Handsfree Left Driver", "Switch", "HFDAC Left PGA"},
1140 {"Handsfree Right Driver", "Switch", "HFDAC Right PGA"},
1142 {"HFL", NULL, "Handsfree Left Driver"},
1143 {"HFR", NULL, "Handsfree Right Driver"},
1146 static int twl6040_add_widgets(struct snd_soc_codec *codec)
1148 struct snd_soc_dapm_context *dapm = &codec->dapm;
1150 snd_soc_dapm_new_controls(dapm, twl6040_dapm_widgets,
1151 ARRAY_SIZE(twl6040_dapm_widgets));
1152 snd_soc_dapm_add_routes(dapm, intercon, ARRAY_SIZE(intercon));
1153 snd_soc_dapm_new_widgets(dapm);
1158 static int twl6040_set_bias_level(struct snd_soc_codec *codec,
1159 enum snd_soc_bias_level level)
1161 struct twl6040 *twl6040 = codec->control_data;
1162 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1166 case SND_SOC_BIAS_ON:
1168 case SND_SOC_BIAS_PREPARE:
1170 case SND_SOC_BIAS_STANDBY:
1171 if (priv->codec_powered)
1174 ret = twl6040_power(twl6040, 1);
1178 priv->codec_powered = 1;
1180 /* initialize vdd/vss registers with reg_cache */
1181 twl6040_init_vdd_regs(codec);
1183 /* Set external boost GPO */
1184 twl6040_write(codec, TWL6040_REG_GPOCTL, 0x02);
1186 case SND_SOC_BIAS_OFF:
1187 if (!priv->codec_powered)
1190 twl6040_power(twl6040, 0);
1191 priv->codec_powered = 0;
1195 /* get PLL and sysclk after power transition */
1196 priv->pll = twl6040_get_pll(twl6040);
1197 priv->sysclk = twl6040_get_sysclk(twl6040);
1198 codec->dapm.bias_level = level;
1203 /* set of rates for each pll: low-power and high-performance */
1205 static unsigned int lp_rates[] = {
1217 static struct snd_pcm_hw_constraint_list lp_constraints = {
1218 .count = ARRAY_SIZE(lp_rates),
1222 static unsigned int hp_rates[] = {
1230 static struct snd_pcm_hw_constraint_list hp_constraints = {
1231 .count = ARRAY_SIZE(hp_rates),
1235 static int twl6040_startup(struct snd_pcm_substream *substream,
1236 struct snd_soc_dai *dai)
1238 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1239 struct snd_soc_codec *codec = rtd->codec;
1240 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1242 snd_pcm_hw_constraint_list(substream->runtime, 0,
1243 SNDRV_PCM_HW_PARAM_RATE,
1244 priv->sysclk_constraints);
1249 static int twl6040_hw_params(struct snd_pcm_substream *substream,
1250 struct snd_pcm_hw_params *params,
1251 struct snd_soc_dai *dai)
1253 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1254 struct snd_soc_codec *codec = rtd->codec;
1255 struct twl6040 *twl6040 = codec->control_data;
1256 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1257 unsigned int sysclk;
1260 /* nothing to do for high-perf pll, it supports only 48 kHz */
1261 if (priv->pll == TWL6040_HPPLL_ID)
1264 rate = params_rate(params);
1280 dev_err(codec->dev, "unsupported rate %d\n", rate);
1284 ret = twl6040_set_pll(twl6040, TWL6040_LPPLL_ID, priv->clk_in, sysclk);
1288 priv->sysclk = twl6040_get_sysclk(twl6040);
1293 static int twl6040_prepare(struct snd_pcm_substream *substream,
1294 struct snd_soc_dai *dai)
1296 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1297 struct snd_soc_codec *codec = rtd->codec;
1298 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1300 if (!priv->sysclk) {
1302 "no mclk configured, call set_sysclk() on init\n");
1307 * capture is not supported at 17.64 MHz,
1308 * it's reserved for headset low-power playback scenario
1310 if ((priv->sysclk == 17640000) &&
1311 substream->stream == SNDRV_PCM_STREAM_CAPTURE) {
1313 "capture mode is not supported at %dHz\n",
1318 if ((priv->sysclk == 17640000) && priv->non_lp) {
1320 "some enabled paths aren't supported at %dHz\n",
1327 static int twl6040_set_dai_sysclk(struct snd_soc_dai *codec_dai,
1328 int clk_id, unsigned int freq, int dir)
1330 struct snd_soc_codec *codec = codec_dai->codec;
1331 struct twl6040 *twl6040 = codec->control_data;
1332 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1336 case TWL6040_SYSCLK_SEL_LPPLL:
1337 ret = twl6040_set_pll(twl6040, TWL6040_LPPLL_ID,
1338 freq, priv->sysclk);
1342 headset_power_mode(codec, 0);
1343 priv->sysclk_constraints = &lp_constraints;
1345 case TWL6040_SYSCLK_SEL_HPPLL:
1346 ret = twl6040_set_pll(twl6040, TWL6040_HPPLL_ID,
1347 freq, priv->sysclk);
1351 headset_power_mode(codec, 1);
1352 priv->sysclk_constraints = &hp_constraints;
1355 dev_err(codec->dev, "unknown clk_id %d\n", clk_id);
1359 priv->pll = twl6040_get_pll(twl6040);
1360 priv->clk_in = freq;
1361 priv->sysclk = twl6040_get_sysclk(twl6040);
1366 static struct snd_soc_dai_ops twl6040_dai_ops = {
1367 .startup = twl6040_startup,
1368 .hw_params = twl6040_hw_params,
1369 .prepare = twl6040_prepare,
1370 .set_sysclk = twl6040_set_dai_sysclk,
1373 static struct snd_soc_dai_driver twl6040_dai[] = {
1375 .name = "twl6040-ul",
1377 .stream_name = "Capture",
1380 .rates = TWL6040_RATES,
1381 .formats = TWL6040_FORMATS,
1383 .ops = &twl6040_dai_ops,
1386 .name = "twl6040-dl1",
1388 .stream_name = "Headset Playback",
1391 .rates = TWL6040_RATES,
1392 .formats = TWL6040_FORMATS,
1394 .ops = &twl6040_dai_ops,
1397 .name = "twl6040-dl2",
1399 .stream_name = "Handsfree Playback",
1402 .rates = TWL6040_RATES,
1403 .formats = TWL6040_FORMATS,
1405 .ops = &twl6040_dai_ops,
1408 .name = "twl6040-vib",
1410 .stream_name = "Vibra Playback",
1413 .rates = SNDRV_PCM_RATE_CONTINUOUS,
1414 .formats = TWL6040_FORMATS,
1416 .ops = &twl6040_dai_ops,
1421 static int twl6040_suspend(struct snd_soc_codec *codec, pm_message_t state)
1423 twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1428 static int twl6040_resume(struct snd_soc_codec *codec)
1430 twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1431 twl6040_set_bias_level(codec, codec->dapm.suspend_bias_level);
1436 #define twl6040_suspend NULL
1437 #define twl6040_resume NULL
1440 static int twl6040_probe(struct snd_soc_codec *codec)
1442 struct twl6040_data *priv;
1445 priv = kzalloc(sizeof(struct twl6040_data), GFP_KERNEL);
1448 snd_soc_codec_set_drvdata(codec, priv);
1450 priv->codec = codec;
1451 codec->control_data = dev_get_drvdata(codec->dev->parent);
1453 priv->workqueue = create_singlethread_workqueue("twl6040-codec");
1454 if (!priv->workqueue) {
1459 INIT_DELAYED_WORK(&priv->delayed_work, twl6040_accessory_work);
1461 mutex_init(&priv->mutex);
1463 init_completion(&priv->headset.ramp_done);
1464 init_completion(&priv->handsfree.ramp_done);
1466 priv->hf_workqueue = create_singlethread_workqueue("twl6040-hf");
1467 if (priv->hf_workqueue == NULL) {
1471 priv->hs_workqueue = create_singlethread_workqueue("twl6040-hs");
1472 if (priv->hs_workqueue == NULL) {
1477 INIT_DELAYED_WORK(&priv->hs_delayed_work, twl6040_pga_hs_work);
1478 INIT_DELAYED_WORK(&priv->hf_delayed_work, twl6040_pga_hf_work);
1480 ret = twl6040_request_irq(codec->control_data, TWL6040_IRQ_PLUG,
1481 twl6040_audio_handler, 0,
1482 "twl6040_irq_plug", codec);
1484 dev_err(codec->dev, "PLUG IRQ request failed: %d\n", ret);
1488 /* init vio registers */
1489 twl6040_init_vio_regs(codec);
1491 /* power on device */
1492 ret = twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1496 snd_soc_add_controls(codec, twl6040_snd_controls,
1497 ARRAY_SIZE(twl6040_snd_controls));
1498 twl6040_add_widgets(codec);
1503 twl6040_free_irq(codec->control_data, TWL6040_IRQ_PLUG, codec);
1505 destroy_workqueue(priv->hs_workqueue);
1507 destroy_workqueue(priv->hf_workqueue);
1509 destroy_workqueue(priv->workqueue);
1515 static int twl6040_remove(struct snd_soc_codec *codec)
1517 struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1519 twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1520 twl6040_free_irq(codec->control_data, TWL6040_IRQ_PLUG, codec);
1521 destroy_workqueue(priv->workqueue);
1522 destroy_workqueue(priv->hf_workqueue);
1523 destroy_workqueue(priv->hs_workqueue);
1529 static struct snd_soc_codec_driver soc_codec_dev_twl6040 = {
1530 .probe = twl6040_probe,
1531 .remove = twl6040_remove,
1532 .suspend = twl6040_suspend,
1533 .resume = twl6040_resume,
1534 .read = twl6040_read_reg_cache,
1535 .write = twl6040_write,
1536 .set_bias_level = twl6040_set_bias_level,
1537 .reg_cache_size = ARRAY_SIZE(twl6040_reg),
1538 .reg_word_size = sizeof(u8),
1539 .reg_cache_default = twl6040_reg,
1542 static int __devinit twl6040_codec_probe(struct platform_device *pdev)
1544 return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_twl6040,
1545 twl6040_dai, ARRAY_SIZE(twl6040_dai));
1548 static int __devexit twl6040_codec_remove(struct platform_device *pdev)
1550 snd_soc_unregister_codec(&pdev->dev);
1554 static struct platform_driver twl6040_codec_driver = {
1556 .name = "twl6040-codec",
1557 .owner = THIS_MODULE,
1559 .probe = twl6040_codec_probe,
1560 .remove = __devexit_p(twl6040_codec_remove),
1563 static int __init twl6040_codec_init(void)
1565 return platform_driver_register(&twl6040_codec_driver);
1567 module_init(twl6040_codec_init);
1569 static void __exit twl6040_codec_exit(void)
1571 platform_driver_unregister(&twl6040_codec_driver);
1573 module_exit(twl6040_codec_exit);
1575 MODULE_DESCRIPTION("ASoC TWL6040 codec driver");
1576 MODULE_AUTHOR("Misael Lopez Cruz");
1577 MODULE_LICENSE("GPL");