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Linux/sound/soc/codecs/twl6040.c

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  1 // SPDX-License-Identifier: GPL-2.0-only
  2 /*
  3  * ALSA SoC TWL6040 codec driver
  4  *
  5  * Author:       Misael Lopez Cruz <x0052729@ti.com>
  6  */
  7 
  8 #include <linux/module.h>
  9 #include <linux/moduleparam.h>
 10 #include <linux/init.h>
 11 #include <linux/delay.h>
 12 #include <linux/pm.h>
 13 #include <linux/platform_device.h>
 14 #include <linux/slab.h>
 15 #include <linux/mfd/twl6040.h>
 16 
 17 #include <sound/core.h>
 18 #include <sound/pcm.h>
 19 #include <sound/pcm_params.h>
 20 #include <sound/soc.h>
 21 #include <sound/soc-dapm.h>
 22 #include <sound/initval.h>
 23 #include <sound/tlv.h>
 24 
 25 #include "twl6040.h"
 26 
 27 enum twl6040_dai_id {
 28         TWL6040_DAI_LEGACY = 0,
 29         TWL6040_DAI_UL,
 30         TWL6040_DAI_DL1,
 31         TWL6040_DAI_DL2,
 32         TWL6040_DAI_VIB,
 33 };
 34 
 35 #define TWL6040_RATES           SNDRV_PCM_RATE_8000_96000
 36 #define TWL6040_FORMATS (SNDRV_PCM_FMTBIT_S32_LE)
 37 
 38 #define TWL6040_OUTHS_0dB 0x00
 39 #define TWL6040_OUTHS_M30dB 0x0F
 40 #define TWL6040_OUTHF_0dB 0x03
 41 #define TWL6040_OUTHF_M52dB 0x1D
 42 
 43 #define TWL6040_CACHEREGNUM     (TWL6040_REG_STATUS + 1)
 44 
 45 struct twl6040_jack_data {
 46         struct snd_soc_jack *jack;
 47         struct delayed_work work;
 48         int report;
 49 };
 50 
 51 /* codec private data */
 52 struct twl6040_data {
 53         int plug_irq;
 54         int codec_powered;
 55         int pll;
 56         int pll_power_mode;
 57         int hs_power_mode;
 58         int hs_power_mode_locked;
 59         bool dl1_unmuted;
 60         bool dl2_unmuted;
 61         u8 dl12_cache[TWL6040_REG_HFRCTL - TWL6040_REG_HSLCTL + 1];
 62         unsigned int clk_in;
 63         unsigned int sysclk;
 64         struct twl6040_jack_data hs_jack;
 65         struct snd_soc_component *component;
 66         struct mutex mutex;
 67 };
 68 
 69 /* set of rates for each pll: low-power and high-performance */
 70 static const unsigned int lp_rates[] = {
 71         8000,
 72         11250,
 73         16000,
 74         22500,
 75         32000,
 76         44100,
 77         48000,
 78         88200,
 79         96000,
 80 };
 81 
 82 static const unsigned int hp_rates[] = {
 83         8000,
 84         16000,
 85         32000,
 86         48000,
 87         96000,
 88 };
 89 
 90 static const struct snd_pcm_hw_constraint_list sysclk_constraints[] = {
 91         { .count = ARRAY_SIZE(lp_rates), .list = lp_rates, },
 92         { .count = ARRAY_SIZE(hp_rates), .list = hp_rates, },
 93 };
 94 
 95 #define to_twl6040(component)   dev_get_drvdata((component)->dev->parent)
 96 
 97 static unsigned int twl6040_read(struct snd_soc_component *component, unsigned int reg)
 98 {
 99         struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
100         struct twl6040 *twl6040 = to_twl6040(component);
101         u8 value;
102 
103         if (reg >= TWL6040_CACHEREGNUM)
104                 return -EIO;
105 
106         switch (reg) {
107         case TWL6040_REG_HSLCTL:
108         case TWL6040_REG_HSRCTL:
109         case TWL6040_REG_EARCTL:
110         case TWL6040_REG_HFLCTL:
111         case TWL6040_REG_HFRCTL:
112                 value = priv->dl12_cache[reg - TWL6040_REG_HSLCTL];
113                 break;
114         default:
115                 value = twl6040_reg_read(twl6040, reg);
116                 break;
117         }
118 
119         return value;
120 }
121 
122 static bool twl6040_can_write_to_chip(struct snd_soc_component *component,
123                                   unsigned int reg)
124 {
125         struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
126 
127         switch (reg) {
128         case TWL6040_REG_HSLCTL:
129         case TWL6040_REG_HSRCTL:
130         case TWL6040_REG_EARCTL:
131                 /* DL1 path */
132                 return priv->dl1_unmuted;
133         case TWL6040_REG_HFLCTL:
134         case TWL6040_REG_HFRCTL:
135                 return priv->dl2_unmuted;
136         default:
137                 return true;
138         }
139 }
140 
141 static inline void twl6040_update_dl12_cache(struct snd_soc_component *component,
142                                              u8 reg, u8 value)
143 {
144         struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
145 
146         switch (reg) {
147         case TWL6040_REG_HSLCTL:
148         case TWL6040_REG_HSRCTL:
149         case TWL6040_REG_EARCTL:
150         case TWL6040_REG_HFLCTL:
151         case TWL6040_REG_HFRCTL:
152                 priv->dl12_cache[reg - TWL6040_REG_HSLCTL] = value;
153                 break;
154         default:
155                 break;
156         }
157 }
158 
159 static int twl6040_write(struct snd_soc_component *component,
160                         unsigned int reg, unsigned int value)
161 {
162         struct twl6040 *twl6040 = to_twl6040(component);
163 
164         if (reg >= TWL6040_CACHEREGNUM)
165                 return -EIO;
166 
167         twl6040_update_dl12_cache(component, reg, value);
168         if (twl6040_can_write_to_chip(component, reg))
169                 return twl6040_reg_write(twl6040, reg, value);
170         else
171                 return 0;
172 }
173 
174 static void twl6040_init_chip(struct snd_soc_component *component)
175 {
176         twl6040_read(component, TWL6040_REG_TRIM1);
177         twl6040_read(component, TWL6040_REG_TRIM2);
178         twl6040_read(component, TWL6040_REG_TRIM3);
179         twl6040_read(component, TWL6040_REG_HSOTRIM);
180         twl6040_read(component, TWL6040_REG_HFOTRIM);
181 
182         /* Change chip defaults */
183         /* No imput selected for microphone amplifiers */
184         twl6040_write(component, TWL6040_REG_MICLCTL, 0x18);
185         twl6040_write(component, TWL6040_REG_MICRCTL, 0x18);
186 
187         /*
188          * We need to lower the default gain values, so the ramp code
189          * can work correctly for the first playback.
190          * This reduces the pop noise heard at the first playback.
191          */
192         twl6040_write(component, TWL6040_REG_HSGAIN, 0xff);
193         twl6040_write(component, TWL6040_REG_EARCTL, 0x1e);
194         twl6040_write(component, TWL6040_REG_HFLGAIN, 0x1d);
195         twl6040_write(component, TWL6040_REG_HFRGAIN, 0x1d);
196         twl6040_write(component, TWL6040_REG_LINEGAIN, 0);
197 }
198 
199 /* set headset dac and driver power mode */
200 static int headset_power_mode(struct snd_soc_component *component, int high_perf)
201 {
202         int hslctl, hsrctl;
203         int mask = TWL6040_HSDRVMODE | TWL6040_HSDACMODE;
204 
205         hslctl = twl6040_read(component, TWL6040_REG_HSLCTL);
206         hsrctl = twl6040_read(component, TWL6040_REG_HSRCTL);
207 
208         if (high_perf) {
209                 hslctl &= ~mask;
210                 hsrctl &= ~mask;
211         } else {
212                 hslctl |= mask;
213                 hsrctl |= mask;
214         }
215 
216         twl6040_write(component, TWL6040_REG_HSLCTL, hslctl);
217         twl6040_write(component, TWL6040_REG_HSRCTL, hsrctl);
218 
219         return 0;
220 }
221 
222 static int twl6040_hs_dac_event(struct snd_soc_dapm_widget *w,
223                         struct snd_kcontrol *kcontrol, int event)
224 {
225         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
226         u8 hslctl, hsrctl;
227 
228         /*
229          * Workaround for Headset DC offset caused pop noise:
230          * Both HS DAC need to be turned on (before the HS driver) and off at
231          * the same time.
232          */
233         hslctl = twl6040_read(component, TWL6040_REG_HSLCTL);
234         hsrctl = twl6040_read(component, TWL6040_REG_HSRCTL);
235         if (SND_SOC_DAPM_EVENT_ON(event)) {
236                 hslctl |= TWL6040_HSDACENA;
237                 hsrctl |= TWL6040_HSDACENA;
238         } else {
239                 hslctl &= ~TWL6040_HSDACENA;
240                 hsrctl &= ~TWL6040_HSDACENA;
241         }
242         twl6040_write(component, TWL6040_REG_HSLCTL, hslctl);
243         twl6040_write(component, TWL6040_REG_HSRCTL, hsrctl);
244 
245         msleep(1);
246         return 0;
247 }
248 
249 static int twl6040_ep_drv_event(struct snd_soc_dapm_widget *w,
250                         struct snd_kcontrol *kcontrol, int event)
251 {
252         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
253         struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
254         int ret = 0;
255 
256         if (SND_SOC_DAPM_EVENT_ON(event)) {
257                 /* Earphone doesn't support low power mode */
258                 priv->hs_power_mode_locked = 1;
259                 ret = headset_power_mode(component, 1);
260         } else {
261                 priv->hs_power_mode_locked = 0;
262                 ret = headset_power_mode(component, priv->hs_power_mode);
263         }
264 
265         msleep(1);
266 
267         return ret;
268 }
269 
270 static void twl6040_hs_jack_report(struct snd_soc_component *component,
271                                    struct snd_soc_jack *jack, int report)
272 {
273         struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
274         int status;
275 
276         mutex_lock(&priv->mutex);
277 
278         /* Sync status */
279         status = twl6040_read(component, TWL6040_REG_STATUS);
280         if (status & TWL6040_PLUGCOMP)
281                 snd_soc_jack_report(jack, report, report);
282         else
283                 snd_soc_jack_report(jack, 0, report);
284 
285         mutex_unlock(&priv->mutex);
286 }
287 
288 void twl6040_hs_jack_detect(struct snd_soc_component *component,
289                                 struct snd_soc_jack *jack, int report)
290 {
291         struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
292         struct twl6040_jack_data *hs_jack = &priv->hs_jack;
293 
294         hs_jack->jack = jack;
295         hs_jack->report = report;
296 
297         twl6040_hs_jack_report(component, hs_jack->jack, hs_jack->report);
298 }
299 EXPORT_SYMBOL_GPL(twl6040_hs_jack_detect);
300 
301 static void twl6040_accessory_work(struct work_struct *work)
302 {
303         struct twl6040_data *priv = container_of(work,
304                                         struct twl6040_data, hs_jack.work.work);
305         struct snd_soc_component *component = priv->component;
306         struct twl6040_jack_data *hs_jack = &priv->hs_jack;
307 
308         twl6040_hs_jack_report(component, hs_jack->jack, hs_jack->report);
309 }
310 
311 /* audio interrupt handler */
312 static irqreturn_t twl6040_audio_handler(int irq, void *data)
313 {
314         struct snd_soc_component *component = data;
315         struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
316 
317         queue_delayed_work(system_power_efficient_wq,
318                            &priv->hs_jack.work, msecs_to_jiffies(200));
319 
320         return IRQ_HANDLED;
321 }
322 
323 static int twl6040_soc_dapm_put_vibra_enum(struct snd_kcontrol *kcontrol,
324         struct snd_ctl_elem_value *ucontrol)
325 {
326         struct snd_soc_component *component = snd_soc_dapm_kcontrol_component(kcontrol);
327         struct soc_enum *e = (struct soc_enum *)kcontrol->private_value;
328         unsigned int val;
329 
330         /* Do not allow changes while Input/FF efect is running */
331         val = twl6040_read(component, e->reg);
332         if (val & TWL6040_VIBENA && !(val & TWL6040_VIBSEL))
333                 return -EBUSY;
334 
335         return snd_soc_dapm_put_enum_double(kcontrol, ucontrol);
336 }
337 
338 /*
339  * MICATT volume control:
340  * from -6 to 0 dB in 6 dB steps
341  */
342 static DECLARE_TLV_DB_SCALE(mic_preamp_tlv, -600, 600, 0);
343 
344 /*
345  * MICGAIN volume control:
346  * from 6 to 30 dB in 6 dB steps
347  */
348 static DECLARE_TLV_DB_SCALE(mic_amp_tlv, 600, 600, 0);
349 
350 /*
351  * AFMGAIN volume control:
352  * from -18 to 24 dB in 6 dB steps
353  */
354 static DECLARE_TLV_DB_SCALE(afm_amp_tlv, -1800, 600, 0);
355 
356 /*
357  * HSGAIN volume control:
358  * from -30 to 0 dB in 2 dB steps
359  */
360 static DECLARE_TLV_DB_SCALE(hs_tlv, -3000, 200, 0);
361 
362 /*
363  * HFGAIN volume control:
364  * from -52 to 6 dB in 2 dB steps
365  */
366 static DECLARE_TLV_DB_SCALE(hf_tlv, -5200, 200, 0);
367 
368 /*
369  * EPGAIN volume control:
370  * from -24 to 6 dB in 2 dB steps
371  */
372 static DECLARE_TLV_DB_SCALE(ep_tlv, -2400, 200, 0);
373 
374 /* Left analog microphone selection */
375 static const char *twl6040_amicl_texts[] =
376         {"Headset Mic", "Main Mic", "Aux/FM Left", "Off"};
377 
378 /* Right analog microphone selection */
379 static const char *twl6040_amicr_texts[] =
380         {"Headset Mic", "Sub Mic", "Aux/FM Right", "Off"};
381 
382 static const struct soc_enum twl6040_enum[] = {
383         SOC_ENUM_SINGLE(TWL6040_REG_MICLCTL, 3,
384                         ARRAY_SIZE(twl6040_amicl_texts), twl6040_amicl_texts),
385         SOC_ENUM_SINGLE(TWL6040_REG_MICRCTL, 3,
386                         ARRAY_SIZE(twl6040_amicr_texts), twl6040_amicr_texts),
387 };
388 
389 static const char *twl6040_hs_texts[] = {
390         "Off", "HS DAC", "Line-In amp"
391 };
392 
393 static const struct soc_enum twl6040_hs_enum[] = {
394         SOC_ENUM_SINGLE(TWL6040_REG_HSLCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
395                         twl6040_hs_texts),
396         SOC_ENUM_SINGLE(TWL6040_REG_HSRCTL, 5, ARRAY_SIZE(twl6040_hs_texts),
397                         twl6040_hs_texts),
398 };
399 
400 static const char *twl6040_hf_texts[] = {
401         "Off", "HF DAC", "Line-In amp"
402 };
403 
404 static const struct soc_enum twl6040_hf_enum[] = {
405         SOC_ENUM_SINGLE(TWL6040_REG_HFLCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
406                         twl6040_hf_texts),
407         SOC_ENUM_SINGLE(TWL6040_REG_HFRCTL, 2, ARRAY_SIZE(twl6040_hf_texts),
408                         twl6040_hf_texts),
409 };
410 
411 static const char *twl6040_vibrapath_texts[] = {
412         "Input FF", "Audio PDM"
413 };
414 
415 static const struct soc_enum twl6040_vibra_enum[] = {
416         SOC_ENUM_SINGLE(TWL6040_REG_VIBCTLL, 1,
417                         ARRAY_SIZE(twl6040_vibrapath_texts),
418                         twl6040_vibrapath_texts),
419         SOC_ENUM_SINGLE(TWL6040_REG_VIBCTLR, 1,
420                         ARRAY_SIZE(twl6040_vibrapath_texts),
421                         twl6040_vibrapath_texts),
422 };
423 
424 static const struct snd_kcontrol_new amicl_control =
425         SOC_DAPM_ENUM("Route", twl6040_enum[0]);
426 
427 static const struct snd_kcontrol_new amicr_control =
428         SOC_DAPM_ENUM("Route", twl6040_enum[1]);
429 
430 /* Headset DAC playback switches */
431 static const struct snd_kcontrol_new hsl_mux_controls =
432         SOC_DAPM_ENUM("Route", twl6040_hs_enum[0]);
433 
434 static const struct snd_kcontrol_new hsr_mux_controls =
435         SOC_DAPM_ENUM("Route", twl6040_hs_enum[1]);
436 
437 /* Handsfree DAC playback switches */
438 static const struct snd_kcontrol_new hfl_mux_controls =
439         SOC_DAPM_ENUM("Route", twl6040_hf_enum[0]);
440 
441 static const struct snd_kcontrol_new hfr_mux_controls =
442         SOC_DAPM_ENUM("Route", twl6040_hf_enum[1]);
443 
444 static const struct snd_kcontrol_new ep_path_enable_control =
445         SOC_DAPM_SINGLE_VIRT("Switch", 1);
446 
447 static const struct snd_kcontrol_new auxl_switch_control =
448         SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFLCTL, 6, 1, 0);
449 
450 static const struct snd_kcontrol_new auxr_switch_control =
451         SOC_DAPM_SINGLE("Switch", TWL6040_REG_HFRCTL, 6, 1, 0);
452 
453 /* Vibra playback switches */
454 static const struct snd_kcontrol_new vibral_mux_controls =
455         SOC_DAPM_ENUM_EXT("Route", twl6040_vibra_enum[0],
456                 snd_soc_dapm_get_enum_double,
457                 twl6040_soc_dapm_put_vibra_enum);
458 
459 static const struct snd_kcontrol_new vibrar_mux_controls =
460         SOC_DAPM_ENUM_EXT("Route", twl6040_vibra_enum[1],
461                 snd_soc_dapm_get_enum_double,
462                 twl6040_soc_dapm_put_vibra_enum);
463 
464 /* Headset power mode */
465 static const char *twl6040_power_mode_texts[] = {
466         "Low-Power", "High-Performance",
467 };
468 
469 static SOC_ENUM_SINGLE_EXT_DECL(twl6040_power_mode_enum,
470                                 twl6040_power_mode_texts);
471 
472 static int twl6040_headset_power_get_enum(struct snd_kcontrol *kcontrol,
473         struct snd_ctl_elem_value *ucontrol)
474 {
475         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
476         struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
477 
478         ucontrol->value.enumerated.item[0] = priv->hs_power_mode;
479 
480         return 0;
481 }
482 
483 static int twl6040_headset_power_put_enum(struct snd_kcontrol *kcontrol,
484         struct snd_ctl_elem_value *ucontrol)
485 {
486         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
487         struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
488         int high_perf = ucontrol->value.enumerated.item[0];
489         int ret = 0;
490 
491         if (!priv->hs_power_mode_locked)
492                 ret = headset_power_mode(component, high_perf);
493 
494         if (!ret)
495                 priv->hs_power_mode = high_perf;
496 
497         return ret;
498 }
499 
500 static int twl6040_pll_get_enum(struct snd_kcontrol *kcontrol,
501         struct snd_ctl_elem_value *ucontrol)
502 {
503         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
504         struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
505 
506         ucontrol->value.enumerated.item[0] = priv->pll_power_mode;
507 
508         return 0;
509 }
510 
511 static int twl6040_pll_put_enum(struct snd_kcontrol *kcontrol,
512         struct snd_ctl_elem_value *ucontrol)
513 {
514         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
515         struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
516 
517         priv->pll_power_mode = ucontrol->value.enumerated.item[0];
518 
519         return 0;
520 }
521 
522 int twl6040_get_dl1_gain(struct snd_soc_component *component)
523 {
524         struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
525 
526         if (snd_soc_dapm_get_pin_status(dapm, "EP"))
527                 return -1; /* -1dB */
528 
529         if (snd_soc_dapm_get_pin_status(dapm, "HSOR") ||
530                 snd_soc_dapm_get_pin_status(dapm, "HSOL")) {
531 
532                 u8 val = twl6040_read(component, TWL6040_REG_HSLCTL);
533                 if (val & TWL6040_HSDACMODE)
534                         /* HSDACL in LP mode */
535                         return -8; /* -8dB */
536                 else
537                         /* HSDACL in HP mode */
538                         return -1; /* -1dB */
539         }
540         return 0; /* 0dB */
541 }
542 EXPORT_SYMBOL_GPL(twl6040_get_dl1_gain);
543 
544 int twl6040_get_clk_id(struct snd_soc_component *component)
545 {
546         struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
547 
548         return priv->pll_power_mode;
549 }
550 EXPORT_SYMBOL_GPL(twl6040_get_clk_id);
551 
552 int twl6040_get_trim_value(struct snd_soc_component *component, enum twl6040_trim trim)
553 {
554         if (unlikely(trim >= TWL6040_TRIM_INVAL))
555                 return -EINVAL;
556 
557         return twl6040_read(component, TWL6040_REG_TRIM1 + trim);
558 }
559 EXPORT_SYMBOL_GPL(twl6040_get_trim_value);
560 
561 int twl6040_get_hs_step_size(struct snd_soc_component *component)
562 {
563         struct twl6040 *twl6040 = to_twl6040(component);
564 
565         if (twl6040_get_revid(twl6040) < TWL6040_REV_ES1_3)
566                 /* For ES under ES_1.3 HS step is 2 mV */
567                 return 2;
568         else
569                 /* For ES_1.3 HS step is 1 mV */
570                 return 1;
571 }
572 EXPORT_SYMBOL_GPL(twl6040_get_hs_step_size);
573 
574 static const struct snd_kcontrol_new twl6040_snd_controls[] = {
575         /* Capture gains */
576         SOC_DOUBLE_TLV("Capture Preamplifier Volume",
577                 TWL6040_REG_MICGAIN, 6, 7, 1, 1, mic_preamp_tlv),
578         SOC_DOUBLE_TLV("Capture Volume",
579                 TWL6040_REG_MICGAIN, 0, 3, 4, 0, mic_amp_tlv),
580 
581         /* AFM gains */
582         SOC_DOUBLE_TLV("Aux FM Volume",
583                 TWL6040_REG_LINEGAIN, 0, 3, 7, 0, afm_amp_tlv),
584 
585         /* Playback gains */
586         SOC_DOUBLE_TLV("Headset Playback Volume",
587                 TWL6040_REG_HSGAIN, 0, 4, 0xF, 1, hs_tlv),
588         SOC_DOUBLE_R_TLV("Handsfree Playback Volume",
589                 TWL6040_REG_HFLGAIN, TWL6040_REG_HFRGAIN, 0, 0x1D, 1, hf_tlv),
590         SOC_SINGLE_TLV("Earphone Playback Volume",
591                 TWL6040_REG_EARCTL, 1, 0xF, 1, ep_tlv),
592 
593         SOC_ENUM_EXT("Headset Power Mode", twl6040_power_mode_enum,
594                 twl6040_headset_power_get_enum,
595                 twl6040_headset_power_put_enum),
596 
597         /* Left HS PDM data routed to Right HSDAC */
598         SOC_SINGLE("Headset Mono to Stereo Playback Switch",
599                 TWL6040_REG_HSRCTL, 7, 1, 0),
600 
601         /* Left HF PDM data routed to Right HFDAC */
602         SOC_SINGLE("Handsfree Mono to Stereo Playback Switch",
603                 TWL6040_REG_HFRCTL, 5, 1, 0),
604 
605         SOC_ENUM_EXT("PLL Selection", twl6040_power_mode_enum,
606                 twl6040_pll_get_enum, twl6040_pll_put_enum),
607 };
608 
609 static const struct snd_soc_dapm_widget twl6040_dapm_widgets[] = {
610         /* Inputs */
611         SND_SOC_DAPM_INPUT("MAINMIC"),
612         SND_SOC_DAPM_INPUT("HSMIC"),
613         SND_SOC_DAPM_INPUT("SUBMIC"),
614         SND_SOC_DAPM_INPUT("AFML"),
615         SND_SOC_DAPM_INPUT("AFMR"),
616 
617         /* Outputs */
618         SND_SOC_DAPM_OUTPUT("HSOL"),
619         SND_SOC_DAPM_OUTPUT("HSOR"),
620         SND_SOC_DAPM_OUTPUT("HFL"),
621         SND_SOC_DAPM_OUTPUT("HFR"),
622         SND_SOC_DAPM_OUTPUT("EP"),
623         SND_SOC_DAPM_OUTPUT("AUXL"),
624         SND_SOC_DAPM_OUTPUT("AUXR"),
625         SND_SOC_DAPM_OUTPUT("VIBRAL"),
626         SND_SOC_DAPM_OUTPUT("VIBRAR"),
627 
628         /* Analog input muxes for the capture amplifiers */
629         SND_SOC_DAPM_MUX("Analog Left Capture Route",
630                         SND_SOC_NOPM, 0, 0, &amicl_control),
631         SND_SOC_DAPM_MUX("Analog Right Capture Route",
632                         SND_SOC_NOPM, 0, 0, &amicr_control),
633 
634         /* Analog capture PGAs */
635         SND_SOC_DAPM_PGA("MicAmpL",
636                         TWL6040_REG_MICLCTL, 0, 0, NULL, 0),
637         SND_SOC_DAPM_PGA("MicAmpR",
638                         TWL6040_REG_MICRCTL, 0, 0, NULL, 0),
639 
640         /* Auxiliary FM PGAs */
641         SND_SOC_DAPM_PGA("AFMAmpL",
642                         TWL6040_REG_MICLCTL, 1, 0, NULL, 0),
643         SND_SOC_DAPM_PGA("AFMAmpR",
644                         TWL6040_REG_MICRCTL, 1, 0, NULL, 0),
645 
646         /* ADCs */
647         SND_SOC_DAPM_ADC("ADC Left", NULL, TWL6040_REG_MICLCTL, 2, 0),
648         SND_SOC_DAPM_ADC("ADC Right", NULL, TWL6040_REG_MICRCTL, 2, 0),
649 
650         /* Microphone bias */
651         SND_SOC_DAPM_SUPPLY("Headset Mic Bias",
652                             TWL6040_REG_AMICBCTL, 0, 0, NULL, 0),
653         SND_SOC_DAPM_SUPPLY("Main Mic Bias",
654                             TWL6040_REG_AMICBCTL, 4, 0, NULL, 0),
655         SND_SOC_DAPM_SUPPLY("Digital Mic1 Bias",
656                             TWL6040_REG_DMICBCTL, 0, 0, NULL, 0),
657         SND_SOC_DAPM_SUPPLY("Digital Mic2 Bias",
658                             TWL6040_REG_DMICBCTL, 4, 0, NULL, 0),
659 
660         /* DACs */
661         SND_SOC_DAPM_DAC("HSDAC Left", NULL, SND_SOC_NOPM, 0, 0),
662         SND_SOC_DAPM_DAC("HSDAC Right", NULL, SND_SOC_NOPM, 0, 0),
663         SND_SOC_DAPM_DAC("HFDAC Left", NULL, TWL6040_REG_HFLCTL, 0, 0),
664         SND_SOC_DAPM_DAC("HFDAC Right", NULL, TWL6040_REG_HFRCTL, 0, 0),
665         /* Virtual DAC for vibra path (DL4 channel) */
666         SND_SOC_DAPM_DAC("VIBRA DAC", NULL, SND_SOC_NOPM, 0, 0),
667 
668         SND_SOC_DAPM_MUX("Handsfree Left Playback",
669                         SND_SOC_NOPM, 0, 0, &hfl_mux_controls),
670         SND_SOC_DAPM_MUX("Handsfree Right Playback",
671                         SND_SOC_NOPM, 0, 0, &hfr_mux_controls),
672         /* Analog playback Muxes */
673         SND_SOC_DAPM_MUX("Headset Left Playback",
674                         SND_SOC_NOPM, 0, 0, &hsl_mux_controls),
675         SND_SOC_DAPM_MUX("Headset Right Playback",
676                         SND_SOC_NOPM, 0, 0, &hsr_mux_controls),
677 
678         SND_SOC_DAPM_MUX("Vibra Left Playback", SND_SOC_NOPM, 0, 0,
679                         &vibral_mux_controls),
680         SND_SOC_DAPM_MUX("Vibra Right Playback", SND_SOC_NOPM, 0, 0,
681                         &vibrar_mux_controls),
682 
683         SND_SOC_DAPM_SWITCH("Earphone Playback", SND_SOC_NOPM, 0, 0,
684                         &ep_path_enable_control),
685         SND_SOC_DAPM_SWITCH("AUXL Playback", SND_SOC_NOPM, 0, 0,
686                         &auxl_switch_control),
687         SND_SOC_DAPM_SWITCH("AUXR Playback", SND_SOC_NOPM, 0, 0,
688                         &auxr_switch_control),
689 
690         /* Analog playback drivers */
691         SND_SOC_DAPM_OUT_DRV("HF Left Driver",
692                         TWL6040_REG_HFLCTL, 4, 0, NULL, 0),
693         SND_SOC_DAPM_OUT_DRV("HF Right Driver",
694                         TWL6040_REG_HFRCTL, 4, 0, NULL, 0),
695         SND_SOC_DAPM_OUT_DRV("HS Left Driver",
696                         TWL6040_REG_HSLCTL, 2, 0, NULL, 0),
697         SND_SOC_DAPM_OUT_DRV("HS Right Driver",
698                         TWL6040_REG_HSRCTL, 2, 0, NULL, 0),
699         SND_SOC_DAPM_OUT_DRV_E("Earphone Driver",
700                         TWL6040_REG_EARCTL, 0, 0, NULL, 0,
701                         twl6040_ep_drv_event,
702                         SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
703         SND_SOC_DAPM_OUT_DRV("Vibra Left Driver",
704                         TWL6040_REG_VIBCTLL, 0, 0, NULL, 0),
705         SND_SOC_DAPM_OUT_DRV("Vibra Right Driver",
706                         TWL6040_REG_VIBCTLR, 0, 0, NULL, 0),
707 
708         SND_SOC_DAPM_SUPPLY("Vibra Left Control", TWL6040_REG_VIBCTLL, 2, 0,
709                             NULL, 0),
710         SND_SOC_DAPM_SUPPLY("Vibra Right Control", TWL6040_REG_VIBCTLR, 2, 0,
711                             NULL, 0),
712         SND_SOC_DAPM_SUPPLY_S("HSDAC Power", 1, SND_SOC_NOPM, 0, 0,
713                               twl6040_hs_dac_event,
714                               SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
715 
716         /* Analog playback PGAs */
717         SND_SOC_DAPM_PGA("HF Left PGA",
718                         TWL6040_REG_HFLCTL, 1, 0, NULL, 0),
719         SND_SOC_DAPM_PGA("HF Right PGA",
720                         TWL6040_REG_HFRCTL, 1, 0, NULL, 0),
721 
722 };
723 
724 static const struct snd_soc_dapm_route intercon[] = {
725         /* Stream -> DAC mapping */
726         {"HSDAC Left", NULL, "Legacy Playback"},
727         {"HSDAC Left", NULL, "Headset Playback"},
728         {"HSDAC Right", NULL, "Legacy Playback"},
729         {"HSDAC Right", NULL, "Headset Playback"},
730 
731         {"HFDAC Left", NULL, "Legacy Playback"},
732         {"HFDAC Left", NULL, "Handsfree Playback"},
733         {"HFDAC Right", NULL, "Legacy Playback"},
734         {"HFDAC Right", NULL, "Handsfree Playback"},
735 
736         {"VIBRA DAC", NULL, "Legacy Playback"},
737         {"VIBRA DAC", NULL, "Vibra Playback"},
738 
739         /* ADC -> Stream mapping */
740         {"Legacy Capture" , NULL, "ADC Left"},
741         {"Capture", NULL, "ADC Left"},
742         {"Legacy Capture", NULL, "ADC Right"},
743         {"Capture" , NULL, "ADC Right"},
744 
745         /* Capture path */
746         {"Analog Left Capture Route", "Headset Mic", "HSMIC"},
747         {"Analog Left Capture Route", "Main Mic", "MAINMIC"},
748         {"Analog Left Capture Route", "Aux/FM Left", "AFML"},
749 
750         {"Analog Right Capture Route", "Headset Mic", "HSMIC"},
751         {"Analog Right Capture Route", "Sub Mic", "SUBMIC"},
752         {"Analog Right Capture Route", "Aux/FM Right", "AFMR"},
753 
754         {"MicAmpL", NULL, "Analog Left Capture Route"},
755         {"MicAmpR", NULL, "Analog Right Capture Route"},
756 
757         {"ADC Left", NULL, "MicAmpL"},
758         {"ADC Right", NULL, "MicAmpR"},
759 
760         /* AFM path */
761         {"AFMAmpL", NULL, "AFML"},
762         {"AFMAmpR", NULL, "AFMR"},
763 
764         {"HSDAC Left", NULL, "HSDAC Power"},
765         {"HSDAC Right", NULL, "HSDAC Power"},
766 
767         {"Headset Left Playback", "HS DAC", "HSDAC Left"},
768         {"Headset Left Playback", "Line-In amp", "AFMAmpL"},
769 
770         {"Headset Right Playback", "HS DAC", "HSDAC Right"},
771         {"Headset Right Playback", "Line-In amp", "AFMAmpR"},
772 
773         {"HS Left Driver", NULL, "Headset Left Playback"},
774         {"HS Right Driver", NULL, "Headset Right Playback"},
775 
776         {"HSOL", NULL, "HS Left Driver"},
777         {"HSOR", NULL, "HS Right Driver"},
778 
779         /* Earphone playback path */
780         {"Earphone Playback", "Switch", "HSDAC Left"},
781         {"Earphone Driver", NULL, "Earphone Playback"},
782         {"EP", NULL, "Earphone Driver"},
783 
784         {"Handsfree Left Playback", "HF DAC", "HFDAC Left"},
785         {"Handsfree Left Playback", "Line-In amp", "AFMAmpL"},
786 
787         {"Handsfree Right Playback", "HF DAC", "HFDAC Right"},
788         {"Handsfree Right Playback", "Line-In amp", "AFMAmpR"},
789 
790         {"HF Left PGA", NULL, "Handsfree Left Playback"},
791         {"HF Right PGA", NULL, "Handsfree Right Playback"},
792 
793         {"HF Left Driver", NULL, "HF Left PGA"},
794         {"HF Right Driver", NULL, "HF Right PGA"},
795 
796         {"HFL", NULL, "HF Left Driver"},
797         {"HFR", NULL, "HF Right Driver"},
798 
799         {"AUXL Playback", "Switch", "HF Left PGA"},
800         {"AUXR Playback", "Switch", "HF Right PGA"},
801 
802         {"AUXL", NULL, "AUXL Playback"},
803         {"AUXR", NULL, "AUXR Playback"},
804 
805         /* Vibrator paths */
806         {"Vibra Left Playback", "Audio PDM", "VIBRA DAC"},
807         {"Vibra Right Playback", "Audio PDM", "VIBRA DAC"},
808 
809         {"Vibra Left Driver", NULL, "Vibra Left Playback"},
810         {"Vibra Right Driver", NULL, "Vibra Right Playback"},
811         {"Vibra Left Driver", NULL, "Vibra Left Control"},
812         {"Vibra Right Driver", NULL, "Vibra Right Control"},
813 
814         {"VIBRAL", NULL, "Vibra Left Driver"},
815         {"VIBRAR", NULL, "Vibra Right Driver"},
816 };
817 
818 static int twl6040_set_bias_level(struct snd_soc_component *component,
819                                 enum snd_soc_bias_level level)
820 {
821         struct twl6040 *twl6040 = to_twl6040(component);
822         struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
823         int ret = 0;
824 
825         switch (level) {
826         case SND_SOC_BIAS_ON:
827                 break;
828         case SND_SOC_BIAS_PREPARE:
829                 break;
830         case SND_SOC_BIAS_STANDBY:
831                 if (priv->codec_powered) {
832                         /* Select low power PLL in standby */
833                         ret = twl6040_set_pll(twl6040, TWL6040_SYSCLK_SEL_LPPLL,
834                                               32768, 19200000);
835                         break;
836                 }
837 
838                 ret = twl6040_power(twl6040, 1);
839                 if (ret)
840                         break;
841 
842                 priv->codec_powered = 1;
843 
844                 /* Set external boost GPO */
845                 twl6040_write(component, 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         return ret;
857 }
858 
859 static int twl6040_startup(struct snd_pcm_substream *substream,
860                         struct snd_soc_dai *dai)
861 {
862         struct snd_soc_component *component = dai->component;
863         struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
864 
865         snd_pcm_hw_constraint_list(substream->runtime, 0,
866                                 SNDRV_PCM_HW_PARAM_RATE,
867                                 &sysclk_constraints[priv->pll_power_mode]);
868 
869         return 0;
870 }
871 
872 static int twl6040_hw_params(struct snd_pcm_substream *substream,
873                         struct snd_pcm_hw_params *params,
874                         struct snd_soc_dai *dai)
875 {
876         struct snd_soc_component *component = dai->component;
877         struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
878         int rate;
879 
880         rate = params_rate(params);
881         switch (rate) {
882         case 11250:
883         case 22500:
884         case 44100:
885         case 88200:
886                 /* These rates are not supported when HPPLL is in use */
887                 if (unlikely(priv->pll == TWL6040_SYSCLK_SEL_HPPLL)) {
888                         dev_err(component->dev, "HPPLL does not support rate %d\n",
889                                 rate);
890                         return -EINVAL;
891                 }
892                 priv->sysclk = 17640000;
893                 break;
894         case 8000:
895         case 16000:
896         case 32000:
897         case 48000:
898         case 96000:
899                 priv->sysclk = 19200000;
900                 break;
901         default:
902                 dev_err(component->dev, "unsupported rate %d\n", rate);
903                 return -EINVAL;
904         }
905 
906         return 0;
907 }
908 
909 static int twl6040_prepare(struct snd_pcm_substream *substream,
910                         struct snd_soc_dai *dai)
911 {
912         struct snd_soc_component *component = dai->component;
913         struct twl6040 *twl6040 = to_twl6040(component);
914         struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
915         int ret;
916 
917         if (!priv->sysclk) {
918                 dev_err(component->dev,
919                         "no mclk configured, call set_sysclk() on init\n");
920                 return -EINVAL;
921         }
922 
923         ret = twl6040_set_pll(twl6040, priv->pll, priv->clk_in, priv->sysclk);
924         if (ret) {
925                 dev_err(component->dev, "Can not set PLL (%d)\n", ret);
926                 return -EPERM;
927         }
928 
929         return 0;
930 }
931 
932 static int twl6040_set_dai_sysclk(struct snd_soc_dai *codec_dai,
933                 int clk_id, unsigned int freq, int dir)
934 {
935         struct snd_soc_component *component = codec_dai->component;
936         struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
937 
938         switch (clk_id) {
939         case TWL6040_SYSCLK_SEL_LPPLL:
940         case TWL6040_SYSCLK_SEL_HPPLL:
941                 priv->pll = clk_id;
942                 priv->clk_in = freq;
943                 break;
944         default:
945                 dev_err(component->dev, "unknown clk_id %d\n", clk_id);
946                 return -EINVAL;
947         }
948 
949         return 0;
950 }
951 
952 static void twl6040_mute_path(struct snd_soc_component *component, enum twl6040_dai_id id,
953                              int mute)
954 {
955         struct twl6040 *twl6040 = to_twl6040(component);
956         struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
957         int hslctl, hsrctl, earctl;
958         int hflctl, hfrctl;
959 
960         switch (id) {
961         case TWL6040_DAI_DL1:
962                 hslctl = twl6040_read(component, TWL6040_REG_HSLCTL);
963                 hsrctl = twl6040_read(component, TWL6040_REG_HSRCTL);
964                 earctl = twl6040_read(component, TWL6040_REG_EARCTL);
965 
966                 if (mute) {
967                         /* Power down drivers and DACs */
968                         earctl &= ~0x01;
969                         hslctl &= ~(TWL6040_HSDRVENA | TWL6040_HSDACENA);
970                         hsrctl &= ~(TWL6040_HSDRVENA | TWL6040_HSDACENA);
971 
972                 }
973 
974                 twl6040_reg_write(twl6040, TWL6040_REG_EARCTL, earctl);
975                 twl6040_reg_write(twl6040, TWL6040_REG_HSLCTL, hslctl);
976                 twl6040_reg_write(twl6040, TWL6040_REG_HSRCTL, hsrctl);
977                 priv->dl1_unmuted = !mute;
978                 break;
979         case TWL6040_DAI_DL2:
980                 hflctl = twl6040_read(component, TWL6040_REG_HFLCTL);
981                 hfrctl = twl6040_read(component, TWL6040_REG_HFRCTL);
982 
983                 if (mute) {
984                         /* Power down drivers and DACs */
985                         hflctl &= ~(TWL6040_HFDACENA | TWL6040_HFPGAENA |
986                                     TWL6040_HFDRVENA | TWL6040_HFSWENA);
987                         hfrctl &= ~(TWL6040_HFDACENA | TWL6040_HFPGAENA |
988                                     TWL6040_HFDRVENA | TWL6040_HFSWENA);
989                 }
990 
991                 twl6040_reg_write(twl6040, TWL6040_REG_HFLCTL, hflctl);
992                 twl6040_reg_write(twl6040, TWL6040_REG_HFRCTL, hfrctl);
993                 priv->dl2_unmuted = !mute;
994                 break;
995         default:
996                 break;
997         }
998 }
999 
1000 static int twl6040_digital_mute(struct snd_soc_dai *dai, int mute)
1001 {
1002         switch (dai->id) {
1003         case TWL6040_DAI_LEGACY:
1004                 twl6040_mute_path(dai->component, TWL6040_DAI_DL1, mute);
1005                 twl6040_mute_path(dai->component, TWL6040_DAI_DL2, mute);
1006                 break;
1007         case TWL6040_DAI_DL1:
1008         case TWL6040_DAI_DL2:
1009                 twl6040_mute_path(dai->component, dai->id, mute);
1010                 break;
1011         default:
1012                 break;
1013         }
1014 
1015         return 0;
1016 }
1017 
1018 static const struct snd_soc_dai_ops twl6040_dai_ops = {
1019         .startup        = twl6040_startup,
1020         .hw_params      = twl6040_hw_params,
1021         .prepare        = twl6040_prepare,
1022         .set_sysclk     = twl6040_set_dai_sysclk,
1023         .digital_mute   = twl6040_digital_mute,
1024 };
1025 
1026 static struct snd_soc_dai_driver twl6040_dai[] = {
1027 {
1028         .name = "twl6040-legacy",
1029         .id = TWL6040_DAI_LEGACY,
1030         .playback = {
1031                 .stream_name = "Legacy Playback",
1032                 .channels_min = 1,
1033                 .channels_max = 5,
1034                 .rates = TWL6040_RATES,
1035                 .formats = TWL6040_FORMATS,
1036         },
1037         .capture = {
1038                 .stream_name = "Legacy Capture",
1039                 .channels_min = 1,
1040                 .channels_max = 2,
1041                 .rates = TWL6040_RATES,
1042                 .formats = TWL6040_FORMATS,
1043         },
1044         .ops = &twl6040_dai_ops,
1045 },
1046 {
1047         .name = "twl6040-ul",
1048         .id = TWL6040_DAI_UL,
1049         .capture = {
1050                 .stream_name = "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-dl1",
1060         .id = TWL6040_DAI_DL1,
1061         .playback = {
1062                 .stream_name = "Headset Playback",
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-dl2",
1072         .id = TWL6040_DAI_DL2,
1073         .playback = {
1074                 .stream_name = "Handsfree 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-vib",
1084         .id = TWL6040_DAI_VIB,
1085         .playback = {
1086                 .stream_name = "Vibra Playback",
1087                 .channels_min = 1,
1088                 .channels_max = 1,
1089                 .rates = SNDRV_PCM_RATE_CONTINUOUS,
1090                 .formats = TWL6040_FORMATS,
1091         },
1092         .ops = &twl6040_dai_ops,
1093 },
1094 };
1095 
1096 static int twl6040_probe(struct snd_soc_component *component)
1097 {
1098         struct twl6040_data *priv;
1099         struct platform_device *pdev = to_platform_device(component->dev);
1100         int ret = 0;
1101 
1102         priv = devm_kzalloc(component->dev, sizeof(*priv), GFP_KERNEL);
1103         if (priv == NULL)
1104                 return -ENOMEM;
1105 
1106         snd_soc_component_set_drvdata(component, priv);
1107 
1108         priv->component = component;
1109 
1110         priv->plug_irq = platform_get_irq(pdev, 0);
1111         if (priv->plug_irq < 0) {
1112                 dev_err(component->dev, "invalid irq: %d\n", priv->plug_irq);
1113                 return priv->plug_irq;
1114         }
1115 
1116         INIT_DELAYED_WORK(&priv->hs_jack.work, twl6040_accessory_work);
1117 
1118         mutex_init(&priv->mutex);
1119 
1120         ret = request_threaded_irq(priv->plug_irq, NULL,
1121                                         twl6040_audio_handler,
1122                                         IRQF_NO_SUSPEND | IRQF_ONESHOT,
1123                                         "twl6040_irq_plug", component);
1124         if (ret) {
1125                 dev_err(component->dev, "PLUG IRQ request failed: %d\n", ret);
1126                 return ret;
1127         }
1128 
1129         snd_soc_component_force_bias_level(component, SND_SOC_BIAS_STANDBY);
1130         twl6040_init_chip(component);
1131 
1132         return 0;
1133 }
1134 
1135 static void twl6040_remove(struct snd_soc_component *component)
1136 {
1137         struct twl6040_data *priv = snd_soc_component_get_drvdata(component);
1138 
1139         free_irq(priv->plug_irq, component);
1140 }
1141 
1142 static const struct snd_soc_component_driver soc_component_dev_twl6040 = {
1143         .probe                  = twl6040_probe,
1144         .remove                 = twl6040_remove,
1145         .read                   = twl6040_read,
1146         .write                  = twl6040_write,
1147         .set_bias_level         = twl6040_set_bias_level,
1148         .controls               = twl6040_snd_controls,
1149         .num_controls           = ARRAY_SIZE(twl6040_snd_controls),
1150         .dapm_widgets           = twl6040_dapm_widgets,
1151         .num_dapm_widgets       = ARRAY_SIZE(twl6040_dapm_widgets),
1152         .dapm_routes            = intercon,
1153         .num_dapm_routes        = ARRAY_SIZE(intercon),
1154         .suspend_bias_off       = 1,
1155         .idle_bias_on           = 1,
1156         .endianness             = 1,
1157         .non_legacy_dai_naming  = 1,
1158 };
1159 
1160 static int twl6040_codec_probe(struct platform_device *pdev)
1161 {
1162         return devm_snd_soc_register_component(&pdev->dev,
1163                                       &soc_component_dev_twl6040,
1164                                       twl6040_dai, ARRAY_SIZE(twl6040_dai));
1165 }
1166 
1167 static struct platform_driver twl6040_codec_driver = {
1168         .driver = {
1169                 .name = "twl6040-codec",
1170         },
1171         .probe = twl6040_codec_probe,
1172 };
1173 
1174 module_platform_driver(twl6040_codec_driver);
1175 
1176 MODULE_DESCRIPTION("ASoC TWL6040 codec driver");
1177 MODULE_AUTHOR("Misael Lopez Cruz");
1178 MODULE_LICENSE("GPL");
1179 

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