Version:  2.0.40 2.2.26 2.4.37 3.1 3.2 3.3 3.4 3.5 3.6 3.7 3.8 3.9 3.10 3.11 3.12 3.13 3.14 3.15 3.16 3.17

Linux/sound/soc/codecs/twl6040.c

  1 /*
  2  * ALSA SoC TWL6040 codec driver
  3  *
  4  * Author:       Misael Lopez Cruz <x0052729@ti.com>
  5  *
  6  * This program is free software; you can redistribute it and/or
  7  * modify it under the terms of the GNU General Public License
  8  * version 2 as published by the Free Software Foundation.
  9  *
 10  * This program is distributed in the hope that it will be useful, but
 11  * WITHOUT ANY WARRANTY; without even the implied warranty of
 12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 13  * General Public License for more details.
 14  *
 15  * You should have received a copy of the GNU General Public License
 16  * along with this program; if not, write to the Free Software
 17  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 18  * 02110-1301 USA
 19  *
 20  */
 21 
 22 #include <linux/module.h>
 23 #include <linux/moduleparam.h>
 24 #include <linux/init.h>
 25 #include <linux/delay.h>
 26 #include <linux/pm.h>
 27 #include <linux/platform_device.h>
 28 #include <linux/slab.h>
 29 #include <linux/mfd/twl6040.h>
 30 
 31 #include <sound/core.h>
 32 #include <sound/pcm.h>
 33 #include <sound/pcm_params.h>
 34 #include <sound/soc.h>
 35 #include <sound/soc-dapm.h>
 36 #include <sound/initval.h>
 37 #include <sound/tlv.h>
 38 
 39 #include "twl6040.h"
 40 
 41 enum twl6040_dai_id {
 42         TWL6040_DAI_LEGACY = 0,
 43         TWL6040_DAI_UL,
 44         TWL6040_DAI_DL1,
 45         TWL6040_DAI_DL2,
 46         TWL6040_DAI_VIB,
 47 };
 48 
 49 #define TWL6040_RATES           SNDRV_PCM_RATE_8000_96000
 50 #define TWL6040_FORMATS (SNDRV_PCM_FMTBIT_S32_LE)
 51 
 52 #define TWL6040_OUTHS_0dB 0x00
 53 #define TWL6040_OUTHS_M30dB 0x0F
 54 #define TWL6040_OUTHF_0dB 0x03
 55 #define TWL6040_OUTHF_M52dB 0x1D
 56 
 57 #define TWL6040_CACHEREGNUM     (TWL6040_REG_STATUS + 1)
 58 
 59 struct twl6040_jack_data {
 60         struct snd_soc_jack *jack;
 61         struct delayed_work work;
 62         int report;
 63 };
 64 
 65 /* codec private data */
 66 struct twl6040_data {
 67         int plug_irq;
 68         int codec_powered;
 69         int pll;
 70         int pll_power_mode;
 71         int hs_power_mode;
 72         int hs_power_mode_locked;
 73         bool dl1_unmuted;
 74         bool dl2_unmuted;
 75         u8 dl12_cache[TWL6040_REG_HFRCTL - TWL6040_REG_HSLCTL + 1];
 76         unsigned int clk_in;
 77         unsigned int sysclk;
 78         struct twl6040_jack_data hs_jack;
 79         struct snd_soc_codec *codec;
 80         struct mutex mutex;
 81 };
 82 
 83 /* set of rates for each pll: low-power and high-performance */
 84 static const unsigned int lp_rates[] = {
 85         8000,
 86         11250,
 87         16000,
 88         22500,
 89         32000,
 90         44100,
 91         48000,
 92         88200,
 93         96000,
 94 };
 95 
 96 static const unsigned int hp_rates[] = {
 97         8000,
 98         16000,
 99         32000,
100         48000,
101         96000,
102 };
103 
104 static const struct snd_pcm_hw_constraint_list sysclk_constraints[] = {
105         { .count = ARRAY_SIZE(lp_rates), .list = lp_rates, },
106         { .count = ARRAY_SIZE(hp_rates), .list = hp_rates, },
107 };
108 
109 static unsigned int twl6040_read(struct snd_soc_codec *codec, unsigned int reg)
110 {
111         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
112         struct twl6040 *twl6040 = codec->control_data;
113         u8 value;
114 
115         if (reg >= TWL6040_CACHEREGNUM)
116                 return -EIO;
117 
118         switch (reg) {
119         case TWL6040_REG_HSLCTL:
120         case TWL6040_REG_HSRCTL:
121         case TWL6040_REG_EARCTL:
122         case TWL6040_REG_HFLCTL:
123         case TWL6040_REG_HFRCTL:
124                 value = priv->dl12_cache[reg - TWL6040_REG_HSLCTL];
125                 break;
126         default:
127                 value = twl6040_reg_read(twl6040, reg);
128                 break;
129         }
130 
131         return value;
132 }
133 
134 static bool twl6040_can_write_to_chip(struct snd_soc_codec *codec,
135                                   unsigned int reg)
136 {
137         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
138 
139         switch (reg) {
140         case TWL6040_REG_HSLCTL:
141         case TWL6040_REG_HSRCTL:
142         case TWL6040_REG_EARCTL:
143                 /* DL1 path */
144                 return priv->dl1_unmuted;
145         case TWL6040_REG_HFLCTL:
146         case TWL6040_REG_HFRCTL:
147                 return priv->dl2_unmuted;
148         default:
149                 return 1;
150         }
151 }
152 
153 static inline void twl6040_update_dl12_cache(struct snd_soc_codec *codec,
154                                              u8 reg, u8 value)
155 {
156         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
157 
158         switch (reg) {
159         case TWL6040_REG_HSLCTL:
160         case TWL6040_REG_HSRCTL:
161         case TWL6040_REG_EARCTL:
162         case TWL6040_REG_HFLCTL:
163         case TWL6040_REG_HFRCTL:
164                 priv->dl12_cache[reg - TWL6040_REG_HSLCTL] = value;
165                 break;
166         default:
167                 break;
168         }
169 }
170 
171 static int twl6040_write(struct snd_soc_codec *codec,
172                         unsigned int reg, unsigned int value)
173 {
174         struct twl6040 *twl6040 = codec->control_data;
175 
176         if (reg >= TWL6040_CACHEREGNUM)
177                 return -EIO;
178 
179         twl6040_update_dl12_cache(codec, reg, value);
180         if (twl6040_can_write_to_chip(codec, reg))
181                 return twl6040_reg_write(twl6040, reg, value);
182         else
183                 return 0;
184 }
185 
186 static void twl6040_init_chip(struct snd_soc_codec *codec)
187 {
188         twl6040_read(codec, TWL6040_REG_TRIM1);
189         twl6040_read(codec, TWL6040_REG_TRIM2);
190         twl6040_read(codec, TWL6040_REG_TRIM3);
191         twl6040_read(codec, TWL6040_REG_HSOTRIM);
192         twl6040_read(codec, TWL6040_REG_HFOTRIM);
193 
194         /* Change chip defaults */
195         /* No imput selected for microphone amplifiers */
196         twl6040_write(codec, TWL6040_REG_MICLCTL, 0x18);
197         twl6040_write(codec, TWL6040_REG_MICRCTL, 0x18);
198 
199         /*
200          * We need to lower the default gain values, so the ramp code
201          * can work correctly for the first playback.
202          * This reduces the pop noise heard at the first playback.
203          */
204         twl6040_write(codec, TWL6040_REG_HSGAIN, 0xff);
205         twl6040_write(codec, TWL6040_REG_EARCTL, 0x1e);
206         twl6040_write(codec, TWL6040_REG_HFLGAIN, 0x1d);
207         twl6040_write(codec, TWL6040_REG_HFRGAIN, 0x1d);
208         twl6040_write(codec, TWL6040_REG_LINEGAIN, 0);
209 }
210 
211 /* set headset dac and driver power mode */
212 static int headset_power_mode(struct snd_soc_codec *codec, int high_perf)
213 {
214         int hslctl, hsrctl;
215         int mask = TWL6040_HSDRVMODE | TWL6040_HSDACMODE;
216 
217         hslctl = twl6040_read(codec, TWL6040_REG_HSLCTL);
218         hsrctl = twl6040_read(codec, TWL6040_REG_HSRCTL);
219 
220         if (high_perf) {
221                 hslctl &= ~mask;
222                 hsrctl &= ~mask;
223         } else {
224                 hslctl |= mask;
225                 hsrctl |= mask;
226         }
227 
228         twl6040_write(codec, TWL6040_REG_HSLCTL, hslctl);
229         twl6040_write(codec, TWL6040_REG_HSRCTL, hsrctl);
230 
231         return 0;
232 }
233 
234 static int twl6040_hs_dac_event(struct snd_soc_dapm_widget *w,
235                         struct snd_kcontrol *kcontrol, int event)
236 {
237         struct snd_soc_codec *codec = w->codec;
238         u8 hslctl, hsrctl;
239 
240         /*
241          * Workaround for Headset DC offset caused pop noise:
242          * Both HS DAC need to be turned on (before the HS driver) and off at
243          * the same time.
244          */
245         hslctl = twl6040_read(codec, TWL6040_REG_HSLCTL);
246         hsrctl = twl6040_read(codec, TWL6040_REG_HSRCTL);
247         if (SND_SOC_DAPM_EVENT_ON(event)) {
248                 hslctl |= TWL6040_HSDACENA;
249                 hsrctl |= TWL6040_HSDACENA;
250         } else {
251                 hslctl &= ~TWL6040_HSDACENA;
252                 hsrctl &= ~TWL6040_HSDACENA;
253         }
254         twl6040_write(codec, TWL6040_REG_HSLCTL, hslctl);
255         twl6040_write(codec, TWL6040_REG_HSRCTL, hsrctl);
256 
257         msleep(1);
258         return 0;
259 }
260 
261 static int twl6040_ep_drv_event(struct snd_soc_dapm_widget *w,
262                         struct snd_kcontrol *kcontrol, int event)
263 {
264         struct snd_soc_codec *codec = w->codec;
265         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
266         int ret = 0;
267 
268         if (SND_SOC_DAPM_EVENT_ON(event)) {
269                 /* Earphone doesn't support low power mode */
270                 priv->hs_power_mode_locked = 1;
271                 ret = headset_power_mode(codec, 1);
272         } else {
273                 priv->hs_power_mode_locked = 0;
274                 ret = headset_power_mode(codec, priv->hs_power_mode);
275         }
276 
277         msleep(1);
278 
279         return ret;
280 }
281 
282 static void twl6040_hs_jack_report(struct snd_soc_codec *codec,
283                                    struct snd_soc_jack *jack, int report)
284 {
285         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
286         int status;
287 
288         mutex_lock(&priv->mutex);
289 
290         /* Sync status */
291         status = twl6040_read(codec, TWL6040_REG_STATUS);
292         if (status & TWL6040_PLUGCOMP)
293                 snd_soc_jack_report(jack, report, report);
294         else
295                 snd_soc_jack_report(jack, 0, report);
296 
297         mutex_unlock(&priv->mutex);
298 }
299 
300 void twl6040_hs_jack_detect(struct snd_soc_codec *codec,
301                                 struct snd_soc_jack *jack, int report)
302 {
303         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
304         struct twl6040_jack_data *hs_jack = &priv->hs_jack;
305 
306         hs_jack->jack = jack;
307         hs_jack->report = report;
308 
309         twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
310 }
311 EXPORT_SYMBOL_GPL(twl6040_hs_jack_detect);
312 
313 static void twl6040_accessory_work(struct work_struct *work)
314 {
315         struct twl6040_data *priv = container_of(work,
316                                         struct twl6040_data, hs_jack.work.work);
317         struct snd_soc_codec *codec = priv->codec;
318         struct twl6040_jack_data *hs_jack = &priv->hs_jack;
319 
320         twl6040_hs_jack_report(codec, hs_jack->jack, hs_jack->report);
321 }
322 
323 /* audio interrupt handler */
324 static irqreturn_t twl6040_audio_handler(int irq, void *data)
325 {
326         struct snd_soc_codec *codec = data;
327         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
328 
329         queue_delayed_work(system_power_efficient_wq,
330                            &priv->hs_jack.work, msecs_to_jiffies(200));
331 
332         return IRQ_HANDLED;
333 }
334 
335 static int twl6040_soc_dapm_put_vibra_enum(struct snd_kcontrol *kcontrol,
336         struct snd_ctl_elem_value *ucontrol)
337 {
338         struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol);
339         struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
340         unsigned int val;
341 
342         /* Do not allow changes while Input/FF efect is running */
343         val = twl6040_read(codec, e->reg);
344         if (val & TWL6040_VIBENA && !(val & TWL6040_VIBSEL))
345                 return -EBUSY;
346 
347         return snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
348 }
349 
350 /*
351  * MICATT volume control:
352  * from -6 to 0 dB in 6 dB steps
353  */
354 static DECLARE_TLV_DB_SCALE(mic_preamp_tlv, -600, 600, 0);
355 
356 /*
357  * MICGAIN volume control:
358  * from 6 to 30 dB in 6 dB steps
359  */
360 static DECLARE_TLV_DB_SCALE(mic_amp_tlv, 600, 600, 0);
361 
362 /*
363  * AFMGAIN volume control:
364  * from -18 to 24 dB in 6 dB steps
365  */
366 static DECLARE_TLV_DB_SCALE(afm_amp_tlv, -1800, 600, 0);
367 
368 /*
369  * HSGAIN volume control:
370  * from -30 to 0 dB in 2 dB steps
371  */
372 static DECLARE_TLV_DB_SCALE(hs_tlv, -3000, 200, 0);
373 
374 /*
375  * HFGAIN volume control:
376  * from -52 to 6 dB in 2 dB steps
377  */
378 static DECLARE_TLV_DB_SCALE(hf_tlv, -5200, 200, 0);
379 
380 /*
381  * EPGAIN volume control:
382  * from -24 to 6 dB in 2 dB steps
383  */
384 static DECLARE_TLV_DB_SCALE(ep_tlv, -2400, 200, 0);
385 
386 /* Left analog microphone selection */
387 static const char *twl6040_amicl_texts[] =
388         {"Headset Mic", "Main Mic", "Aux/FM Left", "Off"};
389 
390 /* Right analog microphone selection */
391 static const char *twl6040_amicr_texts[] =
392         {"Headset Mic", "Sub Mic", "Aux/FM Right", "Off"};
393 
394 static const struct soc_enum twl6040_enum[] = {
395         SOC_ENUM_SINGLE(TWL6040_REG_MICLCTL, 3,
396                         ARRAY_SIZE(twl6040_amicl_texts), twl6040_amicl_texts),
397         SOC_ENUM_SINGLE(TWL6040_REG_MICRCTL, 3,
398                         ARRAY_SIZE(twl6040_amicr_texts), twl6040_amicr_texts),
399 };
400 
401 static const char *twl6040_hs_texts[] = {
402         "Off", "HS DAC", "Line-In amp"
403 };
404 
405 static const struct soc_enum twl6040_hs_enum[] = {
406         SOC_ENUM_SINGLE(TWL6040_REG_HSLCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
407                         twl6040_hs_texts),
408         SOC_ENUM_SINGLE(TWL6040_REG_HSRCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
409                         twl6040_hs_texts),
410 };
411 
412 static const char *twl6040_hf_texts[] = {
413         "Off", "HF DAC", "Line-In amp"
414 };
415 
416 static const struct soc_enum twl6040_hf_enum[] = {
417         SOC_ENUM_SINGLE(TWL6040_REG_HFLCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
418                         twl6040_hf_texts),
419         SOC_ENUM_SINGLE(TWL6040_REG_HFRCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
420                         twl6040_hf_texts),
421 };
422 
423 static const char *twl6040_vibrapath_texts[] = {
424         "Input FF", "Audio PDM"
425 };
426 
427 static const struct soc_enum twl6040_vibra_enum[] = {
428         SOC_ENUM_SINGLE(TWL6040_REG_VIBCTLL, 1,
429                         ARRAY_SIZE(twl6040_vibrapath_texts),
430                         twl6040_vibrapath_texts),
431         SOC_ENUM_SINGLE(TWL6040_REG_VIBCTLR, 1,
432                         ARRAY_SIZE(twl6040_vibrapath_texts),
433                         twl6040_vibrapath_texts),
434 };
435 
436 static const struct snd_kcontrol_new amicl_control =
437         SOC_DAPM_ENUM("Route", twl6040_enum[0]);
438 
439 static const struct snd_kcontrol_new amicr_control =
440         SOC_DAPM_ENUM("Route", twl6040_enum[1]);
441 
442 /* Headset DAC playback switches */
443 static const struct snd_kcontrol_new hsl_mux_controls =
444         SOC_DAPM_ENUM("Route", twl6040_hs_enum[0]);
445 
446 static const struct snd_kcontrol_new hsr_mux_controls =
447         SOC_DAPM_ENUM("Route", twl6040_hs_enum[1]);
448 
449 /* Handsfree DAC playback switches */
450 static const struct snd_kcontrol_new hfl_mux_controls =
451         SOC_DAPM_ENUM("Route", twl6040_hf_enum[0]);
452 
453 static const struct snd_kcontrol_new hfr_mux_controls =
454         SOC_DAPM_ENUM("Route", twl6040_hf_enum[1]);
455 
456 static const struct snd_kcontrol_new ep_path_enable_control =
457         SOC_DAPM_SINGLE_VIRT("Switch", 1);
458 
459 static const struct snd_kcontrol_new auxl_switch_control =
460         SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFLCTL, 6, 1, 0);
461 
462 static const struct snd_kcontrol_new auxr_switch_control =
463         SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFRCTL, 6, 1, 0);
464 
465 /* Vibra playback switches */
466 static const struct snd_kcontrol_new vibral_mux_controls =
467         SOC_DAPM_ENUM_EXT("Route", twl6040_vibra_enum[0],
468                 snd_soc_dapm_get_enum_double,
469                 twl6040_soc_dapm_put_vibra_enum);
470 
471 static const struct snd_kcontrol_new vibrar_mux_controls =
472         SOC_DAPM_ENUM_EXT("Route", twl6040_vibra_enum[1],
473                 snd_soc_dapm_get_enum_double,
474                 twl6040_soc_dapm_put_vibra_enum);
475 
476 /* Headset power mode */
477 static const char *twl6040_power_mode_texts[] = {
478         "Low-Power", "High-Performance",
479 };
480 
481 static SOC_ENUM_SINGLE_EXT_DECL(twl6040_power_mode_enum,
482                                 twl6040_power_mode_texts);
483 
484 static int twl6040_headset_power_get_enum(struct snd_kcontrol *kcontrol,
485         struct snd_ctl_elem_value *ucontrol)
486 {
487         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
488         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
489 
490         ucontrol->value.enumerated.item[0] = priv->hs_power_mode;
491 
492         return 0;
493 }
494 
495 static int twl6040_headset_power_put_enum(struct snd_kcontrol *kcontrol,
496         struct snd_ctl_elem_value *ucontrol)
497 {
498         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
499         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
500         int high_perf = ucontrol->value.enumerated.item[0];
501         int ret = 0;
502 
503         if (!priv->hs_power_mode_locked)
504                 ret = headset_power_mode(codec, high_perf);
505 
506         if (!ret)
507                 priv->hs_power_mode = high_perf;
508 
509         return ret;
510 }
511 
512 static int twl6040_pll_get_enum(struct snd_kcontrol *kcontrol,
513         struct snd_ctl_elem_value *ucontrol)
514 {
515         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
516         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
517 
518         ucontrol->value.enumerated.item[0] = priv->pll_power_mode;
519 
520         return 0;
521 }
522 
523 static int twl6040_pll_put_enum(struct snd_kcontrol *kcontrol,
524         struct snd_ctl_elem_value *ucontrol)
525 {
526         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
527         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
528 
529         priv->pll_power_mode = ucontrol->value.enumerated.item[0];
530 
531         return 0;
532 }
533 
534 int twl6040_get_dl1_gain(struct snd_soc_codec *codec)
535 {
536         struct snd_soc_dapm_context *dapm = &codec->dapm;
537 
538         if (snd_soc_dapm_get_pin_status(dapm, "EP"))
539                 return -1; /* -1dB */
540 
541         if (snd_soc_dapm_get_pin_status(dapm, "HSOR") ||
542                 snd_soc_dapm_get_pin_status(dapm, "HSOL")) {
543 
544                 u8 val = snd_soc_read(codec, TWL6040_REG_HSLCTL);
545                 if (val & TWL6040_HSDACMODE)
546                         /* HSDACL in LP mode */
547                         return -8; /* -8dB */
548                 else
549                         /* HSDACL in HP mode */
550                         return -1; /* -1dB */
551         }
552         return 0; /* 0dB */
553 }
554 EXPORT_SYMBOL_GPL(twl6040_get_dl1_gain);
555 
556 int twl6040_get_clk_id(struct snd_soc_codec *codec)
557 {
558         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
559 
560         return priv->pll_power_mode;
561 }
562 EXPORT_SYMBOL_GPL(twl6040_get_clk_id);
563 
564 int twl6040_get_trim_value(struct snd_soc_codec *codec, enum twl6040_trim trim)
565 {
566         if (unlikely(trim >= TWL6040_TRIM_INVAL))
567                 return -EINVAL;
568 
569         return twl6040_read(codec, TWL6040_REG_TRIM1 + trim);
570 }
571 EXPORT_SYMBOL_GPL(twl6040_get_trim_value);
572 
573 int twl6040_get_hs_step_size(struct snd_soc_codec *codec)
574 {
575         struct twl6040 *twl6040 = codec->control_data;
576 
577         if (twl6040_get_revid(twl6040) < TWL6040_REV_ES1_3)
578                 /* For ES under ES_1.3 HS step is 2 mV */
579                 return 2;
580         else
581                 /* For ES_1.3 HS step is 1 mV */
582                 return 1;
583 }
584 EXPORT_SYMBOL_GPL(twl6040_get_hs_step_size);
585 
586 static const struct snd_kcontrol_new twl6040_snd_controls[] = {
587         /* Capture gains */
588         SOC_DOUBLE_TLV("Capture Preamplifier Volume",
589                 TWL6040_REG_MICGAIN, 6, 7, 1, 1, mic_preamp_tlv),
590         SOC_DOUBLE_TLV("Capture Volume",
591                 TWL6040_REG_MICGAIN, 0, 3, 4, 0, mic_amp_tlv),
592 
593         /* AFM gains */
594         SOC_DOUBLE_TLV("Aux FM Volume",
595                 TWL6040_REG_LINEGAIN, 0, 3, 7, 0, afm_amp_tlv),
596 
597         /* Playback gains */
598         SOC_DOUBLE_TLV("Headset Playback Volume",
599                 TWL6040_REG_HSGAIN, 0, 4, 0xF, 1, hs_tlv),
600         SOC_DOUBLE_R_TLV("Handsfree Playback Volume",
601                 TWL6040_REG_HFLGAIN, TWL6040_REG_HFRGAIN, 0, 0x1D, 1, hf_tlv),
602         SOC_SINGLE_TLV("Earphone Playback Volume",
603                 TWL6040_REG_EARCTL, 1, 0xF, 1, ep_tlv),
604 
605         SOC_ENUM_EXT("Headset Power Mode", twl6040_power_mode_enum,
606                 twl6040_headset_power_get_enum,
607                 twl6040_headset_power_put_enum),
608 
609         SOC_ENUM_EXT("PLL Selection", twl6040_power_mode_enum,
610                 twl6040_pll_get_enum, twl6040_pll_put_enum),
611 };
612 
613 static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
614         /* Inputs */
615         SND_SOC_DAPM_INPUT("MAINMIC"),
616         SND_SOC_DAPM_INPUT("HSMIC"),
617         SND_SOC_DAPM_INPUT("SUBMIC"),
618         SND_SOC_DAPM_INPUT("AFML"),
619         SND_SOC_DAPM_INPUT("AFMR"),
620 
621         /* Outputs */
622         SND_SOC_DAPM_OUTPUT("HSOL"),
623         SND_SOC_DAPM_OUTPUT("HSOR"),
624         SND_SOC_DAPM_OUTPUT("HFL"),
625         SND_SOC_DAPM_OUTPUT("HFR"),
626         SND_SOC_DAPM_OUTPUT("EP"),
627         SND_SOC_DAPM_OUTPUT("AUXL"),
628         SND_SOC_DAPM_OUTPUT("AUXR"),
629         SND_SOC_DAPM_OUTPUT("VIBRAL"),
630         SND_SOC_DAPM_OUTPUT("VIBRAR"),
631 
632         /* Analog input muxes for the capture amplifiers */
633         SND_SOC_DAPM_MUX("Analog Left Capture Route",
634                         SND_SOC_NOPM, 0, 0, &amicl_control),
635         SND_SOC_DAPM_MUX("Analog Right Capture Route",
636                         SND_SOC_NOPM, 0, 0, &amicr_control),
637 
638         /* Analog capture PGAs */
639         SND_SOC_DAPM_PGA("MicAmpL",
640                         TWL6040_REG_MICLCTL, 0, 0, NULL, 0),
641         SND_SOC_DAPM_PGA("MicAmpR",
642                         TWL6040_REG_MICRCTL, 0, 0, NULL, 0),
643 
644         /* Auxiliary FM PGAs */
645         SND_SOC_DAPM_PGA("AFMAmpL",
646                         TWL6040_REG_MICLCTL, 1, 0, NULL, 0),
647         SND_SOC_DAPM_PGA("AFMAmpR",
648                         TWL6040_REG_MICRCTL, 1, 0, NULL, 0),
649 
650         /* ADCs */
651         SND_SOC_DAPM_ADC("ADC Left", NULL, TWL6040_REG_MICLCTL, 2, 0),
652         SND_SOC_DAPM_ADC("ADC Right", NULL, TWL6040_REG_MICRCTL, 2, 0),
653 
654         /* Microphone bias */
655         SND_SOC_DAPM_SUPPLY("Headset Mic Bias",
656                             TWL6040_REG_AMICBCTL, 0, 0, NULL, 0),
657         SND_SOC_DAPM_SUPPLY("Main Mic Bias",
658                             TWL6040_REG_AMICBCTL, 4, 0, NULL, 0),
659         SND_SOC_DAPM_SUPPLY("Digital Mic1 Bias",
660                             TWL6040_REG_DMICBCTL, 0, 0, NULL, 0),
661         SND_SOC_DAPM_SUPPLY("Digital Mic2 Bias",
662                             TWL6040_REG_DMICBCTL, 4, 0, NULL, 0),
663 
664         /* DACs */
665         SND_SOC_DAPM_DAC("HSDAC Left", NULL, SND_SOC_NOPM, 0, 0),
666         SND_SOC_DAPM_DAC("HSDAC Right", NULL, SND_SOC_NOPM, 0, 0),
667         SND_SOC_DAPM_DAC("HFDAC Left", NULL, TWL6040_REG_HFLCTL, 0, 0),
668         SND_SOC_DAPM_DAC("HFDAC Right", NULL, TWL6040_REG_HFRCTL, 0, 0),
669         /* Virtual DAC for vibra path (DL4 channel) */
670         SND_SOC_DAPM_DAC("VIBRA DAC", NULL, SND_SOC_NOPM, 0, 0),
671 
672         SND_SOC_DAPM_MUX("Handsfree Left Playback",
673                         SND_SOC_NOPM, 0, 0, &hfl_mux_controls),
674         SND_SOC_DAPM_MUX("Handsfree Right Playback",
675                         SND_SOC_NOPM, 0, 0, &hfr_mux_controls),
676         /* Analog playback Muxes */
677         SND_SOC_DAPM_MUX("Headset Left Playback",
678                         SND_SOC_NOPM, 0, 0, &hsl_mux_controls),
679         SND_SOC_DAPM_MUX("Headset Right Playback",
680                         SND_SOC_NOPM, 0, 0, &hsr_mux_controls),
681 
682         SND_SOC_DAPM_MUX("Vibra Left Playback", SND_SOC_NOPM, 0, 0,
683                         &vibral_mux_controls),
684         SND_SOC_DAPM_MUX("Vibra Right Playback", SND_SOC_NOPM, 0, 0,
685                         &vibrar_mux_controls),
686 
687         SND_SOC_DAPM_SWITCH("Earphone Playback", SND_SOC_NOPM, 0, 0,
688                         &ep_path_enable_control),
689         SND_SOC_DAPM_SWITCH("AUXL Playback", SND_SOC_NOPM, 0, 0,
690                         &auxl_switch_control),
691         SND_SOC_DAPM_SWITCH("AUXR Playback", SND_SOC_NOPM, 0, 0,
692                         &auxr_switch_control),
693 
694         /* Analog playback drivers */
695         SND_SOC_DAPM_OUT_DRV("HF Left Driver",
696                         TWL6040_REG_HFLCTL, 4, 0, NULL, 0),
697         SND_SOC_DAPM_OUT_DRV("HF Right Driver",
698                         TWL6040_REG_HFRCTL, 4, 0, NULL, 0),
699         SND_SOC_DAPM_OUT_DRV("HS Left Driver",
700                         TWL6040_REG_HSLCTL, 2, 0, NULL, 0),
701         SND_SOC_DAPM_OUT_DRV("HS Right Driver",
702                         TWL6040_REG_HSRCTL, 2, 0, NULL, 0),
703         SND_SOC_DAPM_OUT_DRV_E("Earphone Driver",
704                         TWL6040_REG_EARCTL, 0, 0, NULL, 0,
705                         twl6040_ep_drv_event,
706                         SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
707         SND_SOC_DAPM_OUT_DRV("Vibra Left Driver",
708                         TWL6040_REG_VIBCTLL, 0, 0, NULL, 0),
709         SND_SOC_DAPM_OUT_DRV("Vibra Right Driver",
710                         TWL6040_REG_VIBCTLR, 0, 0, NULL, 0),
711 
712         SND_SOC_DAPM_SUPPLY("Vibra Left Control", TWL6040_REG_VIBCTLL, 2, 0,
713                             NULL, 0),
714         SND_SOC_DAPM_SUPPLY("Vibra Right Control", TWL6040_REG_VIBCTLR, 2, 0,
715                             NULL, 0),
716         SND_SOC_DAPM_SUPPLY_S("HSDAC Power", 1, SND_SOC_NOPM, 0, 0,
717                               twl6040_hs_dac_event,
718                               SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
719 
720         /* Analog playback PGAs */
721         SND_SOC_DAPM_PGA("HF Left PGA",
722                         TWL6040_REG_HFLCTL, 1, 0, NULL, 0),
723         SND_SOC_DAPM_PGA("HF Right PGA",
724                         TWL6040_REG_HFRCTL, 1, 0, NULL, 0),
725 
726 };
727 
728 static const struct snd_soc_dapm_route intercon[] = {
729         /* Stream -> DAC mapping */
730         {"HSDAC Left", NULL, "Legacy Playback"},
731         {"HSDAC Left", NULL, "Headset Playback"},
732         {"HSDAC Right", NULL, "Legacy Playback"},
733         {"HSDAC Right", NULL, "Headset Playback"},
734 
735         {"HFDAC Left", NULL, "Legacy Playback"},
736         {"HFDAC Left", NULL, "Handsfree Playback"},
737         {"HFDAC Right", NULL, "Legacy Playback"},
738         {"HFDAC Right", NULL, "Handsfree Playback"},
739 
740         {"VIBRA DAC", NULL, "Legacy Playback"},
741         {"VIBRA DAC", NULL, "Vibra Playback"},
742 
743         /* ADC -> Stream mapping */
744         {"Legacy Capture" , NULL, "ADC Left"},
745         {"Capture", NULL, "ADC Left"},
746         {"Legacy Capture", NULL, "ADC Right"},
747         {"Capture" , NULL, "ADC Right"},
748 
749         /* Capture path */
750         {"Analog Left Capture Route", "Headset Mic", "HSMIC"},
751         {"Analog Left Capture Route", "Main Mic", "MAINMIC"},
752         {"Analog Left Capture Route", "Aux/FM Left", "AFML"},
753 
754         {"Analog Right Capture Route", "Headset Mic", "HSMIC"},
755         {"Analog Right Capture Route", "Sub Mic", "SUBMIC"},
756         {"Analog Right Capture Route", "Aux/FM Right", "AFMR"},
757 
758         {"MicAmpL", NULL, "Analog Left Capture Route"},
759         {"MicAmpR", NULL, "Analog Right Capture Route"},
760 
761         {"ADC Left", NULL, "MicAmpL"},
762         {"ADC Right", NULL, "MicAmpR"},
763 
764         /* AFM path */
765         {"AFMAmpL", NULL, "AFML"},
766         {"AFMAmpR", NULL, "AFMR"},
767 
768         {"HSDAC Left", NULL, "HSDAC Power"},
769         {"HSDAC Right", NULL, "HSDAC Power"},
770 
771         {"Headset Left Playback", "HS DAC", "HSDAC Left"},
772         {"Headset Left Playback", "Line-In amp", "AFMAmpL"},
773 
774         {"Headset Right Playback", "HS DAC", "HSDAC Right"},
775         {"Headset Right Playback", "Line-In amp", "AFMAmpR"},
776 
777         {"HS Left Driver", NULL, "Headset Left Playback"},
778         {"HS Right Driver", NULL, "Headset Right Playback"},
779 
780         {"HSOL", NULL, "HS Left Driver"},
781         {"HSOR", NULL, "HS Right Driver"},
782 
783         /* Earphone playback path */
784         {"Earphone Playback", "Switch", "HSDAC Left"},
785         {"Earphone Driver", NULL, "Earphone Playback"},
786         {"EP", NULL, "Earphone Driver"},
787 
788         {"Handsfree Left Playback", "HF DAC", "HFDAC Left"},
789         {"Handsfree Left Playback", "Line-In amp", "AFMAmpL"},
790 
791         {"Handsfree Right Playback", "HF DAC", "HFDAC Right"},
792         {"Handsfree Right Playback", "Line-In amp", "AFMAmpR"},
793 
794         {"HF Left PGA", NULL, "Handsfree Left Playback"},
795         {"HF Right PGA", NULL, "Handsfree Right Playback"},
796 
797         {"HF Left Driver", NULL, "HF Left PGA"},
798         {"HF Right Driver", NULL, "HF Right PGA"},
799 
800         {"HFL", NULL, "HF Left Driver"},
801         {"HFR", NULL, "HF Right Driver"},
802 
803         {"AUXL Playback", "Switch", "HF Left PGA"},
804         {"AUXR Playback", "Switch", "HF Right PGA"},
805 
806         {"AUXL", NULL, "AUXL Playback"},
807         {"AUXR", NULL, "AUXR Playback"},
808 
809         /* Vibrator paths */
810         {"Vibra Left Playback", "Audio PDM", "VIBRA DAC"},
811         {"Vibra Right Playback", "Audio PDM", "VIBRA DAC"},
812 
813         {"Vibra Left Driver", NULL, "Vibra Left Playback"},
814         {"Vibra Right Driver", NULL, "Vibra Right Playback"},
815         {"Vibra Left Driver", NULL, "Vibra Left Control"},
816         {"Vibra Right Driver", NULL, "Vibra Right Control"},
817 
818         {"VIBRAL", NULL, "Vibra Left Driver"},
819         {"VIBRAR", NULL, "Vibra Right Driver"},
820 };
821 
822 static int twl6040_set_bias_level(struct snd_soc_codec *codec,
823                                 enum snd_soc_bias_level level)
824 {
825         struct twl6040 *twl6040 = codec->control_data;
826         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
827         int ret;
828 
829         switch (level) {
830         case SND_SOC_BIAS_ON:
831                 break;
832         case SND_SOC_BIAS_PREPARE:
833                 break;
834         case SND_SOC_BIAS_STANDBY:
835                 if (priv->codec_powered)
836                         break;
837 
838                 ret = twl6040_power(twl6040, 1);
839                 if (ret)
840                         return ret;
841 
842                 priv->codec_powered = 1;
843 
844                 /* Set external boost GPO */
845                 twl6040_write(codec, TWL6040_REG_GPOCTL, 0x02);
846                 break;
847         case SND_SOC_BIAS_OFF:
848                 if (!priv->codec_powered)
849                         break;
850 
851                 twl6040_power(twl6040, 0);
852                 priv->codec_powered = 0;
853                 break;
854         }
855 
856         codec->dapm.bias_level = level;
857 
858         return 0;
859 }
860 
861 static int twl6040_startup(struct snd_pcm_substream *substream,
862                         struct snd_soc_dai *dai)
863 {
864         struct snd_soc_codec *codec = dai->codec;
865         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
866 
867         snd_pcm_hw_constraint_list(substream->runtime, 0,
868                                 SNDRV_PCM_HW_PARAM_RATE,
869                                 &sysclk_constraints[priv->pll_power_mode]);
870 
871         return 0;
872 }
873 
874 static int twl6040_hw_params(struct snd_pcm_substream *substream,
875                         struct snd_pcm_hw_params *params,
876                         struct snd_soc_dai *dai)
877 {
878         struct snd_soc_codec *codec = dai->codec;
879         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
880         int rate;
881 
882         rate = params_rate(params);
883         switch (rate) {
884         case 11250:
885         case 22500:
886         case 44100:
887         case 88200:
888                 /* These rates are not supported when HPPLL is in use */
889                 if (unlikely(priv->pll == TWL6040_SYSCLK_SEL_HPPLL)) {
890                         dev_err(codec->dev, "HPPLL does not support rate %d\n",
891                                 rate);
892                         return -EINVAL;
893                 }
894                 priv->sysclk = 17640000;
895                 break;
896         case 8000:
897         case 16000:
898         case 32000:
899         case 48000:
900         case 96000:
901                 priv->sysclk = 19200000;
902                 break;
903         default:
904                 dev_err(codec->dev, "unsupported rate %d\n", rate);
905                 return -EINVAL;
906         }
907 
908         return 0;
909 }
910 
911 static int twl6040_prepare(struct snd_pcm_substream *substream,
912                         struct snd_soc_dai *dai)
913 {
914         struct snd_soc_codec *codec = dai->codec;
915         struct twl6040 *twl6040 = codec->control_data;
916         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
917         int ret;
918 
919         if (!priv->sysclk) {
920                 dev_err(codec->dev,
921                         "no mclk configured, call set_sysclk() on init\n");
922                 return -EINVAL;
923         }
924 
925         ret = twl6040_set_pll(twl6040, priv->pll, priv->clk_in, priv->sysclk);
926         if (ret) {
927                 dev_err(codec->dev, "Can not set PLL (%d)\n", ret);
928                 return -EPERM;
929         }
930 
931         return 0;
932 }
933 
934 static int twl6040_set_dai_sysclk(struct snd_soc_dai *codec_dai,
935                 int clk_id, unsigned int freq, int dir)
936 {
937         struct snd_soc_codec *codec = codec_dai->codec;
938         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
939 
940         switch (clk_id) {
941         case TWL6040_SYSCLK_SEL_LPPLL:
942         case TWL6040_SYSCLK_SEL_HPPLL:
943                 priv->pll = clk_id;
944                 priv->clk_in = freq;
945                 break;
946         default:
947                 dev_err(codec->dev, "unknown clk_id %d\n", clk_id);
948                 return -EINVAL;
949         }
950 
951         return 0;
952 }
953 
954 static void twl6040_mute_path(struct snd_soc_codec *codec, enum twl6040_dai_id id,
955                              int mute)
956 {
957         struct twl6040 *twl6040 = codec->control_data;
958         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
959         int hslctl, hsrctl, earctl;
960         int hflctl, hfrctl;
961 
962         switch (id) {
963         case TWL6040_DAI_DL1:
964                 hslctl = twl6040_read(codec, TWL6040_REG_HSLCTL);
965                 hsrctl = twl6040_read(codec, TWL6040_REG_HSRCTL);
966                 earctl = twl6040_read(codec, TWL6040_REG_EARCTL);
967 
968                 if (mute) {
969                         /* Power down drivers and DACs */
970                         earctl &= ~0x01;
971                         hslctl &= ~(TWL6040_HSDRVENA | TWL6040_HSDACENA);
972                         hsrctl &= ~(TWL6040_HSDRVENA | TWL6040_HSDACENA);
973 
974                 }
975 
976                 twl6040_reg_write(twl6040, TWL6040_REG_EARCTL, earctl);
977                 twl6040_reg_write(twl6040, TWL6040_REG_HSLCTL, hslctl);
978                 twl6040_reg_write(twl6040, TWL6040_REG_HSRCTL, hsrctl);
979                 priv->dl1_unmuted = !mute;
980                 break;
981         case TWL6040_DAI_DL2:
982                 hflctl = twl6040_read(codec, TWL6040_REG_HFLCTL);
983                 hfrctl = twl6040_read(codec, TWL6040_REG_HFRCTL);
984 
985                 if (mute) {
986                         /* Power down drivers and DACs */
987                         hflctl &= ~(TWL6040_HFDACENA | TWL6040_HFPGAENA |
988                                     TWL6040_HFDRVENA);
989                         hfrctl &= ~(TWL6040_HFDACENA | TWL6040_HFPGAENA |
990                                     TWL6040_HFDRVENA);
991                 }
992 
993                 twl6040_reg_write(twl6040, TWL6040_REG_HFLCTL, hflctl);
994                 twl6040_reg_write(twl6040, TWL6040_REG_HFRCTL, hfrctl);
995                 priv->dl2_unmuted = !mute;
996                 break;
997         default:
998                 break;
999         }
1000 }
1001 
1002 static int twl6040_digital_mute(struct snd_soc_dai *dai, int mute)
1003 {
1004         switch (dai->id) {
1005         case TWL6040_DAI_LEGACY:
1006                 twl6040_mute_path(dai->codec, TWL6040_DAI_DL1, mute);
1007                 twl6040_mute_path(dai->codec, TWL6040_DAI_DL2, mute);
1008                 break;
1009         case TWL6040_DAI_DL1:
1010         case TWL6040_DAI_DL2:
1011                 twl6040_mute_path(dai->codec, dai->id, mute);
1012                 break;
1013         default:
1014                 break;
1015         }
1016 
1017         return 0;
1018 }
1019 
1020 static const struct snd_soc_dai_ops twl6040_dai_ops = {
1021         .startup        = twl6040_startup,
1022         .hw_params      = twl6040_hw_params,
1023         .prepare        = twl6040_prepare,
1024         .set_sysclk     = twl6040_set_dai_sysclk,
1025         .digital_mute   = twl6040_digital_mute,
1026 };
1027 
1028 static struct snd_soc_dai_driver twl6040_dai[] = {
1029 {
1030         .name = "twl6040-legacy",
1031         .id = TWL6040_DAI_LEGACY,
1032         .playback = {
1033                 .stream_name = "Legacy Playback",
1034                 .channels_min = 1,
1035                 .channels_max = 5,
1036                 .rates = TWL6040_RATES,
1037                 .formats = TWL6040_FORMATS,
1038         },
1039         .capture = {
1040                 .stream_name = "Legacy Capture",
1041                 .channels_min = 1,
1042                 .channels_max = 2,
1043                 .rates = TWL6040_RATES,
1044                 .formats = TWL6040_FORMATS,
1045         },
1046         .ops = &twl6040_dai_ops,
1047 },
1048 {
1049         .name = "twl6040-ul",
1050         .id = TWL6040_DAI_UL,
1051         .capture = {
1052                 .stream_name = "Capture",
1053                 .channels_min = 1,
1054                 .channels_max = 2,
1055                 .rates = TWL6040_RATES,
1056                 .formats = TWL6040_FORMATS,
1057         },
1058         .ops = &twl6040_dai_ops,
1059 },
1060 {
1061         .name = "twl6040-dl1",
1062         .id = TWL6040_DAI_DL1,
1063         .playback = {
1064                 .stream_name = "Headset Playback",
1065                 .channels_min = 1,
1066                 .channels_max = 2,
1067                 .rates = TWL6040_RATES,
1068                 .formats = TWL6040_FORMATS,
1069         },
1070         .ops = &twl6040_dai_ops,
1071 },
1072 {
1073         .name = "twl6040-dl2",
1074         .id = TWL6040_DAI_DL2,
1075         .playback = {
1076                 .stream_name = "Handsfree Playback",
1077                 .channels_min = 1,
1078                 .channels_max = 2,
1079                 .rates = TWL6040_RATES,
1080                 .formats = TWL6040_FORMATS,
1081         },
1082         .ops = &twl6040_dai_ops,
1083 },
1084 {
1085         .name = "twl6040-vib",
1086         .id = TWL6040_DAI_VIB,
1087         .playback = {
1088                 .stream_name = "Vibra Playback",
1089                 .channels_min = 1,
1090                 .channels_max = 1,
1091                 .rates = SNDRV_PCM_RATE_CONTINUOUS,
1092                 .formats = TWL6040_FORMATS,
1093         },
1094         .ops = &twl6040_dai_ops,
1095 },
1096 };
1097 
1098 #ifdef CONFIG_PM
1099 static int twl6040_suspend(struct snd_soc_codec *codec)
1100 {
1101         twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1102 
1103         return 0;
1104 }
1105 
1106 static int twl6040_resume(struct snd_soc_codec *codec)
1107 {
1108         twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1109 
1110         return 0;
1111 }
1112 #else
1113 #define twl6040_suspend NULL
1114 #define twl6040_resume NULL
1115 #endif
1116 
1117 static int twl6040_probe(struct snd_soc_codec *codec)
1118 {
1119         struct twl6040_data *priv;
1120         struct twl6040 *twl6040 = dev_get_drvdata(codec->dev->parent);
1121         struct platform_device *pdev = container_of(codec->dev,
1122                                                    struct platform_device, dev);
1123         int ret = 0;
1124 
1125         priv = devm_kzalloc(codec->dev, sizeof(*priv), GFP_KERNEL);
1126         if (priv == NULL)
1127                 return -ENOMEM;
1128 
1129         snd_soc_codec_set_drvdata(codec, priv);
1130 
1131         priv->codec = codec;
1132         codec->control_data = twl6040;
1133 
1134         priv->plug_irq = platform_get_irq(pdev, 0);
1135         if (priv->plug_irq < 0) {
1136                 dev_err(codec->dev, "invalid irq\n");
1137                 return -EINVAL;
1138         }
1139 
1140         INIT_DELAYED_WORK(&priv->hs_jack.work, twl6040_accessory_work);
1141 
1142         mutex_init(&priv->mutex);
1143 
1144         ret = request_threaded_irq(priv->plug_irq, NULL,
1145                                         twl6040_audio_handler, IRQF_NO_SUSPEND,
1146                                         "twl6040_irq_plug", codec);
1147         if (ret) {
1148                 dev_err(codec->dev, "PLUG IRQ request failed: %d\n", ret);
1149                 return ret;
1150         }
1151 
1152         twl6040_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1153         twl6040_init_chip(codec);
1154 
1155         return 0;
1156 }
1157 
1158 static int twl6040_remove(struct snd_soc_codec *codec)
1159 {
1160         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1161 
1162         free_irq(priv->plug_irq, codec);
1163         twl6040_set_bias_level(codec, SND_SOC_BIAS_OFF);
1164 
1165         return 0;
1166 }
1167 
1168 static struct snd_soc_codec_driver soc_codec_dev_twl6040 = {
1169         .probe = twl6040_probe,
1170         .remove = twl6040_remove,
1171         .suspend = twl6040_suspend,
1172         .resume = twl6040_resume,
1173         .read = twl6040_read,
1174         .write = twl6040_write,
1175         .set_bias_level = twl6040_set_bias_level,
1176         .ignore_pmdown_time = true,
1177 
1178         .controls = twl6040_snd_controls,
1179         .num_controls = ARRAY_SIZE(twl6040_snd_controls),
1180         .dapm_widgets = twl6040_dapm_widgets,
1181         .num_dapm_widgets = ARRAY_SIZE(twl6040_dapm_widgets),
1182         .dapm_routes = intercon,
1183         .num_dapm_routes = ARRAY_SIZE(intercon),
1184 };
1185 
1186 static int twl6040_codec_probe(struct platform_device *pdev)
1187 {
1188         return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_twl6040,
1189                                       twl6040_dai, ARRAY_SIZE(twl6040_dai));
1190 }
1191 
1192 static int twl6040_codec_remove(struct platform_device *pdev)
1193 {
1194         snd_soc_unregister_codec(&pdev->dev);
1195         return 0;
1196 }
1197 
1198 static struct platform_driver twl6040_codec_driver = {
1199         .driver = {
1200                 .name = "twl6040-codec",
1201                 .owner = THIS_MODULE,
1202         },
1203         .probe = twl6040_codec_probe,
1204         .remove = twl6040_codec_remove,
1205 };
1206 
1207 module_platform_driver(twl6040_codec_driver);
1208 
1209 MODULE_DESCRIPTION("ASoC TWL6040 codec driver");
1210 MODULE_AUTHOR("Misael Lopez Cruz");
1211 MODULE_LICENSE("GPL");
1212 

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