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Linux/sound/soc/codecs/twl6040.c

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  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 = snd_soc_dapm_to_codec(w->dapm);
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 = snd_soc_dapm_to_codec(w->dapm);
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 = snd_soc_codec_get_dapm(codec);
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         /* Left HS PDM data routed to Right HSDAC */
610         SOC_SINGLE("Headset Mono to Stereo Playback Switch",
611                 TWL6040_REG_HSRCTL, 7, 1, 0),
612 
613         /* Left HF PDM data routed to Right HFDAC */
614         SOC_SINGLE("Handsfree Mono to Stereo Playback Switch",
615                 TWL6040_REG_HFRCTL, 5, 1, 0),
616 
617         SOC_ENUM_EXT("PLL Selection", twl6040_power_mode_enum,
618                 twl6040_pll_get_enum, twl6040_pll_put_enum),
619 };
620 
621 static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
622         /* Inputs */
623         SND_SOC_DAPM_INPUT("MAINMIC"),
624         SND_SOC_DAPM_INPUT("HSMIC"),
625         SND_SOC_DAPM_INPUT("SUBMIC"),
626         SND_SOC_DAPM_INPUT("AFML"),
627         SND_SOC_DAPM_INPUT("AFMR"),
628 
629         /* Outputs */
630         SND_SOC_DAPM_OUTPUT("HSOL"),
631         SND_SOC_DAPM_OUTPUT("HSOR"),
632         SND_SOC_DAPM_OUTPUT("HFL"),
633         SND_SOC_DAPM_OUTPUT("HFR"),
634         SND_SOC_DAPM_OUTPUT("EP"),
635         SND_SOC_DAPM_OUTPUT("AUXL"),
636         SND_SOC_DAPM_OUTPUT("AUXR"),
637         SND_SOC_DAPM_OUTPUT("VIBRAL"),
638         SND_SOC_DAPM_OUTPUT("VIBRAR"),
639 
640         /* Analog input muxes for the capture amplifiers */
641         SND_SOC_DAPM_MUX("Analog Left Capture Route",
642                         SND_SOC_NOPM, 0, 0, &amicl_control),
643         SND_SOC_DAPM_MUX("Analog Right Capture Route",
644                         SND_SOC_NOPM, 0, 0, &amicr_control),
645 
646         /* Analog capture PGAs */
647         SND_SOC_DAPM_PGA("MicAmpL",
648                         TWL6040_REG_MICLCTL, 0, 0, NULL, 0),
649         SND_SOC_DAPM_PGA("MicAmpR",
650                         TWL6040_REG_MICRCTL, 0, 0, NULL, 0),
651 
652         /* Auxiliary FM PGAs */
653         SND_SOC_DAPM_PGA("AFMAmpL",
654                         TWL6040_REG_MICLCTL, 1, 0, NULL, 0),
655         SND_SOC_DAPM_PGA("AFMAmpR",
656                         TWL6040_REG_MICRCTL, 1, 0, NULL, 0),
657 
658         /* ADCs */
659         SND_SOC_DAPM_ADC("ADC Left", NULL, TWL6040_REG_MICLCTL, 2, 0),
660         SND_SOC_DAPM_ADC("ADC Right", NULL, TWL6040_REG_MICRCTL, 2, 0),
661 
662         /* Microphone bias */
663         SND_SOC_DAPM_SUPPLY("Headset Mic Bias",
664                             TWL6040_REG_AMICBCTL, 0, 0, NULL, 0),
665         SND_SOC_DAPM_SUPPLY("Main Mic Bias",
666                             TWL6040_REG_AMICBCTL, 4, 0, NULL, 0),
667         SND_SOC_DAPM_SUPPLY("Digital Mic1 Bias",
668                             TWL6040_REG_DMICBCTL, 0, 0, NULL, 0),
669         SND_SOC_DAPM_SUPPLY("Digital Mic2 Bias",
670                             TWL6040_REG_DMICBCTL, 4, 0, NULL, 0),
671 
672         /* DACs */
673         SND_SOC_DAPM_DAC("HSDAC Left", NULL, SND_SOC_NOPM, 0, 0),
674         SND_SOC_DAPM_DAC("HSDAC Right", NULL, SND_SOC_NOPM, 0, 0),
675         SND_SOC_DAPM_DAC("HFDAC Left", NULL, TWL6040_REG_HFLCTL, 0, 0),
676         SND_SOC_DAPM_DAC("HFDAC Right", NULL, TWL6040_REG_HFRCTL, 0, 0),
677         /* Virtual DAC for vibra path (DL4 channel) */
678         SND_SOC_DAPM_DAC("VIBRA DAC", NULL, SND_SOC_NOPM, 0, 0),
679 
680         SND_SOC_DAPM_MUX("Handsfree Left Playback",
681                         SND_SOC_NOPM, 0, 0, &hfl_mux_controls),
682         SND_SOC_DAPM_MUX("Handsfree Right Playback",
683                         SND_SOC_NOPM, 0, 0, &hfr_mux_controls),
684         /* Analog playback Muxes */
685         SND_SOC_DAPM_MUX("Headset Left Playback",
686                         SND_SOC_NOPM, 0, 0, &hsl_mux_controls),
687         SND_SOC_DAPM_MUX("Headset Right Playback",
688                         SND_SOC_NOPM, 0, 0, &hsr_mux_controls),
689 
690         SND_SOC_DAPM_MUX("Vibra Left Playback", SND_SOC_NOPM, 0, 0,
691                         &vibral_mux_controls),
692         SND_SOC_DAPM_MUX("Vibra Right Playback", SND_SOC_NOPM, 0, 0,
693                         &vibrar_mux_controls),
694 
695         SND_SOC_DAPM_SWITCH("Earphone Playback", SND_SOC_NOPM, 0, 0,
696                         &ep_path_enable_control),
697         SND_SOC_DAPM_SWITCH("AUXL Playback", SND_SOC_NOPM, 0, 0,
698                         &auxl_switch_control),
699         SND_SOC_DAPM_SWITCH("AUXR Playback", SND_SOC_NOPM, 0, 0,
700                         &auxr_switch_control),
701 
702         /* Analog playback drivers */
703         SND_SOC_DAPM_OUT_DRV("HF Left Driver",
704                         TWL6040_REG_HFLCTL, 4, 0, NULL, 0),
705         SND_SOC_DAPM_OUT_DRV("HF Right Driver",
706                         TWL6040_REG_HFRCTL, 4, 0, NULL, 0),
707         SND_SOC_DAPM_OUT_DRV("HS Left Driver",
708                         TWL6040_REG_HSLCTL, 2, 0, NULL, 0),
709         SND_SOC_DAPM_OUT_DRV("HS Right Driver",
710                         TWL6040_REG_HSRCTL, 2, 0, NULL, 0),
711         SND_SOC_DAPM_OUT_DRV_E("Earphone Driver",
712                         TWL6040_REG_EARCTL, 0, 0, NULL, 0,
713                         twl6040_ep_drv_event,
714                         SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
715         SND_SOC_DAPM_OUT_DRV("Vibra Left Driver",
716                         TWL6040_REG_VIBCTLL, 0, 0, NULL, 0),
717         SND_SOC_DAPM_OUT_DRV("Vibra Right Driver",
718                         TWL6040_REG_VIBCTLR, 0, 0, NULL, 0),
719 
720         SND_SOC_DAPM_SUPPLY("Vibra Left Control", TWL6040_REG_VIBCTLL, 2, 0,
721                             NULL, 0),
722         SND_SOC_DAPM_SUPPLY("Vibra Right Control", TWL6040_REG_VIBCTLR, 2, 0,
723                             NULL, 0),
724         SND_SOC_DAPM_SUPPLY_S("HSDAC Power", 1, SND_SOC_NOPM, 0, 0,
725                               twl6040_hs_dac_event,
726                               SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
727 
728         /* Analog playback PGAs */
729         SND_SOC_DAPM_PGA("HF Left PGA",
730                         TWL6040_REG_HFLCTL, 1, 0, NULL, 0),
731         SND_SOC_DAPM_PGA("HF Right PGA",
732                         TWL6040_REG_HFRCTL, 1, 0, NULL, 0),
733 
734 };
735 
736 static const struct snd_soc_dapm_route intercon[] = {
737         /* Stream -> DAC mapping */
738         {"HSDAC Left", NULL, "Legacy Playback"},
739         {"HSDAC Left", NULL, "Headset Playback"},
740         {"HSDAC Right", NULL, "Legacy Playback"},
741         {"HSDAC Right", NULL, "Headset Playback"},
742 
743         {"HFDAC Left", NULL, "Legacy Playback"},
744         {"HFDAC Left", NULL, "Handsfree Playback"},
745         {"HFDAC Right", NULL, "Legacy Playback"},
746         {"HFDAC Right", NULL, "Handsfree Playback"},
747 
748         {"VIBRA DAC", NULL, "Legacy Playback"},
749         {"VIBRA DAC", NULL, "Vibra Playback"},
750 
751         /* ADC -> Stream mapping */
752         {"Legacy Capture" , NULL, "ADC Left"},
753         {"Capture", NULL, "ADC Left"},
754         {"Legacy Capture", NULL, "ADC Right"},
755         {"Capture" , NULL, "ADC Right"},
756 
757         /* Capture path */
758         {"Analog Left Capture Route", "Headset Mic", "HSMIC"},
759         {"Analog Left Capture Route", "Main Mic", "MAINMIC"},
760         {"Analog Left Capture Route", "Aux/FM Left", "AFML"},
761 
762         {"Analog Right Capture Route", "Headset Mic", "HSMIC"},
763         {"Analog Right Capture Route", "Sub Mic", "SUBMIC"},
764         {"Analog Right Capture Route", "Aux/FM Right", "AFMR"},
765 
766         {"MicAmpL", NULL, "Analog Left Capture Route"},
767         {"MicAmpR", NULL, "Analog Right Capture Route"},
768 
769         {"ADC Left", NULL, "MicAmpL"},
770         {"ADC Right", NULL, "MicAmpR"},
771 
772         /* AFM path */
773         {"AFMAmpL", NULL, "AFML"},
774         {"AFMAmpR", NULL, "AFMR"},
775 
776         {"HSDAC Left", NULL, "HSDAC Power"},
777         {"HSDAC Right", NULL, "HSDAC Power"},
778 
779         {"Headset Left Playback", "HS DAC", "HSDAC Left"},
780         {"Headset Left Playback", "Line-In amp", "AFMAmpL"},
781 
782         {"Headset Right Playback", "HS DAC", "HSDAC Right"},
783         {"Headset Right Playback", "Line-In amp", "AFMAmpR"},
784 
785         {"HS Left Driver", NULL, "Headset Left Playback"},
786         {"HS Right Driver", NULL, "Headset Right Playback"},
787 
788         {"HSOL", NULL, "HS Left Driver"},
789         {"HSOR", NULL, "HS Right Driver"},
790 
791         /* Earphone playback path */
792         {"Earphone Playback", "Switch", "HSDAC Left"},
793         {"Earphone Driver", NULL, "Earphone Playback"},
794         {"EP", NULL, "Earphone Driver"},
795 
796         {"Handsfree Left Playback", "HF DAC", "HFDAC Left"},
797         {"Handsfree Left Playback", "Line-In amp", "AFMAmpL"},
798 
799         {"Handsfree Right Playback", "HF DAC", "HFDAC Right"},
800         {"Handsfree Right Playback", "Line-In amp", "AFMAmpR"},
801 
802         {"HF Left PGA", NULL, "Handsfree Left Playback"},
803         {"HF Right PGA", NULL, "Handsfree Right Playback"},
804 
805         {"HF Left Driver", NULL, "HF Left PGA"},
806         {"HF Right Driver", NULL, "HF Right PGA"},
807 
808         {"HFL", NULL, "HF Left Driver"},
809         {"HFR", NULL, "HF Right Driver"},
810 
811         {"AUXL Playback", "Switch", "HF Left PGA"},
812         {"AUXR Playback", "Switch", "HF Right PGA"},
813 
814         {"AUXL", NULL, "AUXL Playback"},
815         {"AUXR", NULL, "AUXR Playback"},
816 
817         /* Vibrator paths */
818         {"Vibra Left Playback", "Audio PDM", "VIBRA DAC"},
819         {"Vibra Right Playback", "Audio PDM", "VIBRA DAC"},
820 
821         {"Vibra Left Driver", NULL, "Vibra Left Playback"},
822         {"Vibra Right Driver", NULL, "Vibra Right Playback"},
823         {"Vibra Left Driver", NULL, "Vibra Left Control"},
824         {"Vibra Right Driver", NULL, "Vibra Right Control"},
825 
826         {"VIBRAL", NULL, "Vibra Left Driver"},
827         {"VIBRAR", NULL, "Vibra Right Driver"},
828 };
829 
830 static int twl6040_set_bias_level(struct snd_soc_codec *codec,
831                                 enum snd_soc_bias_level level)
832 {
833         struct twl6040 *twl6040 = codec->control_data;
834         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
835         int ret = 0;
836 
837         switch (level) {
838         case SND_SOC_BIAS_ON:
839                 break;
840         case SND_SOC_BIAS_PREPARE:
841                 break;
842         case SND_SOC_BIAS_STANDBY:
843                 if (priv->codec_powered) {
844                         /* Select low power PLL in standby */
845                         ret = twl6040_set_pll(twl6040, TWL6040_SYSCLK_SEL_LPPLL,
846                                               32768, 19200000);
847                         break;
848                 }
849 
850                 ret = twl6040_power(twl6040, 1);
851                 if (ret)
852                         break;
853 
854                 priv->codec_powered = 1;
855 
856                 /* Set external boost GPO */
857                 twl6040_write(codec, TWL6040_REG_GPOCTL, 0x02);
858                 break;
859         case SND_SOC_BIAS_OFF:
860                 if (!priv->codec_powered)
861                         break;
862 
863                 twl6040_power(twl6040, 0);
864                 priv->codec_powered = 0;
865                 break;
866         }
867 
868         return ret;
869 }
870 
871 static int twl6040_startup(struct snd_pcm_substream *substream,
872                         struct snd_soc_dai *dai)
873 {
874         struct snd_soc_codec *codec = dai->codec;
875         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
876 
877         snd_pcm_hw_constraint_list(substream->runtime, 0,
878                                 SNDRV_PCM_HW_PARAM_RATE,
879                                 &sysclk_constraints[priv->pll_power_mode]);
880 
881         return 0;
882 }
883 
884 static int twl6040_hw_params(struct snd_pcm_substream *substream,
885                         struct snd_pcm_hw_params *params,
886                         struct snd_soc_dai *dai)
887 {
888         struct snd_soc_codec *codec = dai->codec;
889         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
890         int rate;
891 
892         rate = params_rate(params);
893         switch (rate) {
894         case 11250:
895         case 22500:
896         case 44100:
897         case 88200:
898                 /* These rates are not supported when HPPLL is in use */
899                 if (unlikely(priv->pll == TWL6040_SYSCLK_SEL_HPPLL)) {
900                         dev_err(codec->dev, "HPPLL does not support rate %d\n",
901                                 rate);
902                         return -EINVAL;
903                 }
904                 priv->sysclk = 17640000;
905                 break;
906         case 8000:
907         case 16000:
908         case 32000:
909         case 48000:
910         case 96000:
911                 priv->sysclk = 19200000;
912                 break;
913         default:
914                 dev_err(codec->dev, "unsupported rate %d\n", rate);
915                 return -EINVAL;
916         }
917 
918         return 0;
919 }
920 
921 static int twl6040_prepare(struct snd_pcm_substream *substream,
922                         struct snd_soc_dai *dai)
923 {
924         struct snd_soc_codec *codec = dai->codec;
925         struct twl6040 *twl6040 = codec->control_data;
926         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
927         int ret;
928 
929         if (!priv->sysclk) {
930                 dev_err(codec->dev,
931                         "no mclk configured, call set_sysclk() on init\n");
932                 return -EINVAL;
933         }
934 
935         ret = twl6040_set_pll(twl6040, priv->pll, priv->clk_in, priv->sysclk);
936         if (ret) {
937                 dev_err(codec->dev, "Can not set PLL (%d)\n", ret);
938                 return -EPERM;
939         }
940 
941         return 0;
942 }
943 
944 static int twl6040_set_dai_sysclk(struct snd_soc_dai *codec_dai,
945                 int clk_id, unsigned int freq, int dir)
946 {
947         struct snd_soc_codec *codec = codec_dai->codec;
948         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
949 
950         switch (clk_id) {
951         case TWL6040_SYSCLK_SEL_LPPLL:
952         case TWL6040_SYSCLK_SEL_HPPLL:
953                 priv->pll = clk_id;
954                 priv->clk_in = freq;
955                 break;
956         default:
957                 dev_err(codec->dev, "unknown clk_id %d\n", clk_id);
958                 return -EINVAL;
959         }
960 
961         return 0;
962 }
963 
964 static void twl6040_mute_path(struct snd_soc_codec *codec, enum twl6040_dai_id id,
965                              int mute)
966 {
967         struct twl6040 *twl6040 = codec->control_data;
968         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
969         int hslctl, hsrctl, earctl;
970         int hflctl, hfrctl;
971 
972         switch (id) {
973         case TWL6040_DAI_DL1:
974                 hslctl = twl6040_read(codec, TWL6040_REG_HSLCTL);
975                 hsrctl = twl6040_read(codec, TWL6040_REG_HSRCTL);
976                 earctl = twl6040_read(codec, TWL6040_REG_EARCTL);
977 
978                 if (mute) {
979                         /* Power down drivers and DACs */
980                         earctl &= ~0x01;
981                         hslctl &= ~(TWL6040_HSDRVENA | TWL6040_HSDACENA);
982                         hsrctl &= ~(TWL6040_HSDRVENA | TWL6040_HSDACENA);
983 
984                 }
985 
986                 twl6040_reg_write(twl6040, TWL6040_REG_EARCTL, earctl);
987                 twl6040_reg_write(twl6040, TWL6040_REG_HSLCTL, hslctl);
988                 twl6040_reg_write(twl6040, TWL6040_REG_HSRCTL, hsrctl);
989                 priv->dl1_unmuted = !mute;
990                 break;
991         case TWL6040_DAI_DL2:
992                 hflctl = twl6040_read(codec, TWL6040_REG_HFLCTL);
993                 hfrctl = twl6040_read(codec, TWL6040_REG_HFRCTL);
994 
995                 if (mute) {
996                         /* Power down drivers and DACs */
997                         hflctl &= ~(TWL6040_HFDACENA | TWL6040_HFPGAENA |
998                                     TWL6040_HFDRVENA | TWL6040_HFSWENA);
999                         hfrctl &= ~(TWL6040_HFDACENA | TWL6040_HFPGAENA |
1000                                     TWL6040_HFDRVENA | TWL6040_HFSWENA);
1001                 }
1002 
1003                 twl6040_reg_write(twl6040, TWL6040_REG_HFLCTL, hflctl);
1004                 twl6040_reg_write(twl6040, TWL6040_REG_HFRCTL, hfrctl);
1005                 priv->dl2_unmuted = !mute;
1006                 break;
1007         default:
1008                 break;
1009         }
1010 }
1011 
1012 static int twl6040_digital_mute(struct snd_soc_dai *dai, int mute)
1013 {
1014         switch (dai->id) {
1015         case TWL6040_DAI_LEGACY:
1016                 twl6040_mute_path(dai->codec, TWL6040_DAI_DL1, mute);
1017                 twl6040_mute_path(dai->codec, TWL6040_DAI_DL2, mute);
1018                 break;
1019         case TWL6040_DAI_DL1:
1020         case TWL6040_DAI_DL2:
1021                 twl6040_mute_path(dai->codec, dai->id, mute);
1022                 break;
1023         default:
1024                 break;
1025         }
1026 
1027         return 0;
1028 }
1029 
1030 static const struct snd_soc_dai_ops twl6040_dai_ops = {
1031         .startup        = twl6040_startup,
1032         .hw_params      = twl6040_hw_params,
1033         .prepare        = twl6040_prepare,
1034         .set_sysclk     = twl6040_set_dai_sysclk,
1035         .digital_mute   = twl6040_digital_mute,
1036 };
1037 
1038 static struct snd_soc_dai_driver twl6040_dai[] = {
1039 {
1040         .name = "twl6040-legacy",
1041         .id = TWL6040_DAI_LEGACY,
1042         .playback = {
1043                 .stream_name = "Legacy Playback",
1044                 .channels_min = 1,
1045                 .channels_max = 5,
1046                 .rates = TWL6040_RATES,
1047                 .formats = TWL6040_FORMATS,
1048         },
1049         .capture = {
1050                 .stream_name = "Legacy Capture",
1051                 .channels_min = 1,
1052                 .channels_max = 2,
1053                 .rates = TWL6040_RATES,
1054                 .formats = TWL6040_FORMATS,
1055         },
1056         .ops = &twl6040_dai_ops,
1057 },
1058 {
1059         .name = "twl6040-ul",
1060         .id = TWL6040_DAI_UL,
1061         .capture = {
1062                 .stream_name = "Capture",
1063                 .channels_min = 1,
1064                 .channels_max = 2,
1065                 .rates = TWL6040_RATES,
1066                 .formats = TWL6040_FORMATS,
1067         },
1068         .ops = &twl6040_dai_ops,
1069 },
1070 {
1071         .name = "twl6040-dl1",
1072         .id = TWL6040_DAI_DL1,
1073         .playback = {
1074                 .stream_name = "Headset Playback",
1075                 .channels_min = 1,
1076                 .channels_max = 2,
1077                 .rates = TWL6040_RATES,
1078                 .formats = TWL6040_FORMATS,
1079         },
1080         .ops = &twl6040_dai_ops,
1081 },
1082 {
1083         .name = "twl6040-dl2",
1084         .id = TWL6040_DAI_DL2,
1085         .playback = {
1086                 .stream_name = "Handsfree Playback",
1087                 .channels_min = 1,
1088                 .channels_max = 2,
1089                 .rates = TWL6040_RATES,
1090                 .formats = TWL6040_FORMATS,
1091         },
1092         .ops = &twl6040_dai_ops,
1093 },
1094 {
1095         .name = "twl6040-vib",
1096         .id = TWL6040_DAI_VIB,
1097         .playback = {
1098                 .stream_name = "Vibra Playback",
1099                 .channels_min = 1,
1100                 .channels_max = 1,
1101                 .rates = SNDRV_PCM_RATE_CONTINUOUS,
1102                 .formats = TWL6040_FORMATS,
1103         },
1104         .ops = &twl6040_dai_ops,
1105 },
1106 };
1107 
1108 static int twl6040_probe(struct snd_soc_codec *codec)
1109 {
1110         struct twl6040_data *priv;
1111         struct twl6040 *twl6040 = dev_get_drvdata(codec->dev->parent);
1112         struct platform_device *pdev = to_platform_device(codec->dev);
1113         int ret = 0;
1114 
1115         priv = devm_kzalloc(codec->dev, sizeof(*priv), GFP_KERNEL);
1116         if (priv == NULL)
1117                 return -ENOMEM;
1118 
1119         snd_soc_codec_set_drvdata(codec, priv);
1120 
1121         priv->codec = codec;
1122         codec->control_data = twl6040;
1123 
1124         priv->plug_irq = platform_get_irq(pdev, 0);
1125         if (priv->plug_irq < 0) {
1126                 dev_err(codec->dev, "invalid irq: %d\n", priv->plug_irq);
1127                 return priv->plug_irq;
1128         }
1129 
1130         INIT_DELAYED_WORK(&priv->hs_jack.work, twl6040_accessory_work);
1131 
1132         mutex_init(&priv->mutex);
1133 
1134         ret = request_threaded_irq(priv->plug_irq, NULL,
1135                                         twl6040_audio_handler,
1136                                         IRQF_NO_SUSPEND | IRQF_ONESHOT,
1137                                         "twl6040_irq_plug", codec);
1138         if (ret) {
1139                 dev_err(codec->dev, "PLUG IRQ request failed: %d\n", ret);
1140                 return ret;
1141         }
1142 
1143         snd_soc_codec_force_bias_level(codec, SND_SOC_BIAS_STANDBY);
1144         twl6040_init_chip(codec);
1145 
1146         return 0;
1147 }
1148 
1149 static int twl6040_remove(struct snd_soc_codec *codec)
1150 {
1151         struct twl6040_data *priv = snd_soc_codec_get_drvdata(codec);
1152 
1153         free_irq(priv->plug_irq, codec);
1154 
1155         return 0;
1156 }
1157 
1158 static const struct snd_soc_codec_driver soc_codec_dev_twl6040 = {
1159         .probe = twl6040_probe,
1160         .remove = twl6040_remove,
1161         .read = twl6040_read,
1162         .write = twl6040_write,
1163         .set_bias_level = twl6040_set_bias_level,
1164         .suspend_bias_off = true,
1165         .ignore_pmdown_time = true,
1166 
1167         .component_driver = {
1168                 .controls               = twl6040_snd_controls,
1169                 .num_controls           = ARRAY_SIZE(twl6040_snd_controls),
1170                 .dapm_widgets           = twl6040_dapm_widgets,
1171                 .num_dapm_widgets       = ARRAY_SIZE(twl6040_dapm_widgets),
1172                 .dapm_routes            = intercon,
1173                 .num_dapm_routes        = ARRAY_SIZE(intercon),
1174         },
1175 };
1176 
1177 static int twl6040_codec_probe(struct platform_device *pdev)
1178 {
1179         return snd_soc_register_codec(&pdev->dev, &soc_codec_dev_twl6040,
1180                                       twl6040_dai, ARRAY_SIZE(twl6040_dai));
1181 }
1182 
1183 static int twl6040_codec_remove(struct platform_device *pdev)
1184 {
1185         snd_soc_unregister_codec(&pdev->dev);
1186         return 0;
1187 }
1188 
1189 static struct platform_driver twl6040_codec_driver = {
1190         .driver = {
1191                 .name = "twl6040-codec",
1192         },
1193         .probe = twl6040_codec_probe,
1194         .remove = twl6040_codec_remove,
1195 };
1196 
1197 module_platform_driver(twl6040_codec_driver);
1198 
1199 MODULE_DESCRIPTION("ASoC TWL6040 codec driver");
1200 MODULE_AUTHOR("Misael Lopez Cruz");
1201 MODULE_LICENSE("GPL");
1202 

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