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TOMOYO Linux Cross Reference
Linux/sound/soc/codecs/da7219.c

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  1 // SPDX-License-Identifier: GPL-2.0-or-later
  2 /*
  3  * da7219.c - DA7219 ALSA SoC Codec Driver
  4  *
  5  * Copyright (c) 2015 Dialog Semiconductor
  6  *
  7  * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
  8  */
  9 
 10 #include <linux/acpi.h>
 11 #include <linux/clk.h>
 12 #include <linux/clkdev.h>
 13 #include <linux/clk-provider.h>
 14 #include <linux/i2c.h>
 15 #include <linux/of_device.h>
 16 #include <linux/property.h>
 17 #include <linux/regmap.h>
 18 #include <linux/slab.h>
 19 #include <linux/pm.h>
 20 #include <linux/module.h>
 21 #include <linux/delay.h>
 22 #include <linux/regulator/consumer.h>
 23 #include <sound/pcm.h>
 24 #include <sound/pcm_params.h>
 25 #include <sound/soc.h>
 26 #include <sound/soc-dapm.h>
 27 #include <sound/initval.h>
 28 #include <sound/tlv.h>
 29 #include <asm/div64.h>
 30 
 31 #include <sound/da7219.h>
 32 #include "da7219.h"
 33 #include "da7219-aad.h"
 34 
 35 
 36 /*
 37  * TLVs and Enums
 38  */
 39 
 40 /* Input TLVs */
 41 static const DECLARE_TLV_DB_SCALE(da7219_mic_gain_tlv, -600, 600, 0);
 42 static const DECLARE_TLV_DB_SCALE(da7219_mixin_gain_tlv, -450, 150, 0);
 43 static const DECLARE_TLV_DB_SCALE(da7219_adc_dig_gain_tlv, -8325, 75, 0);
 44 static const DECLARE_TLV_DB_SCALE(da7219_alc_threshold_tlv, -9450, 150, 0);
 45 static const DECLARE_TLV_DB_SCALE(da7219_alc_gain_tlv, 0, 600, 0);
 46 static const DECLARE_TLV_DB_SCALE(da7219_alc_ana_gain_tlv, 0, 600, 0);
 47 static const DECLARE_TLV_DB_SCALE(da7219_sidetone_gain_tlv, -4200, 300, 0);
 48 static const DECLARE_TLV_DB_SCALE(da7219_tonegen_gain_tlv, -4500, 300, 0);
 49 
 50 /* Output TLVs */
 51 static const DECLARE_TLV_DB_SCALE(da7219_dac_eq_band_tlv, -1050, 150, 0);
 52 
 53 static const DECLARE_TLV_DB_RANGE(da7219_dac_dig_gain_tlv,
 54         0x0, 0x07, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 1),
 55         /* -77.25dB to 12dB */
 56         0x08, 0x7f, TLV_DB_SCALE_ITEM(-7725, 75, 0)
 57 );
 58 
 59 static const DECLARE_TLV_DB_SCALE(da7219_dac_ng_threshold_tlv, -10200, 600, 0);
 60 static const DECLARE_TLV_DB_SCALE(da7219_hp_gain_tlv, -5700, 100, 0);
 61 
 62 /* Input Enums */
 63 static const char * const da7219_alc_attack_rate_txt[] = {
 64         "7.33/fs", "14.66/fs", "29.32/fs", "58.64/fs", "117.3/fs", "234.6/fs",
 65         "469.1/fs", "938.2/fs", "1876/fs", "3753/fs", "7506/fs", "15012/fs",
 66         "30024/fs"
 67 };
 68 
 69 static const struct soc_enum da7219_alc_attack_rate =
 70         SOC_ENUM_SINGLE(DA7219_ALC_CTRL2, DA7219_ALC_ATTACK_SHIFT,
 71                         DA7219_ALC_ATTACK_MAX, da7219_alc_attack_rate_txt);
 72 
 73 static const char * const da7219_alc_release_rate_txt[] = {
 74         "28.66/fs", "57.33/fs", "114.6/fs", "229.3/fs", "458.6/fs", "917.1/fs",
 75         "1834/fs", "3668/fs", "7337/fs", "14674/fs", "29348/fs"
 76 };
 77 
 78 static const struct soc_enum da7219_alc_release_rate =
 79         SOC_ENUM_SINGLE(DA7219_ALC_CTRL2, DA7219_ALC_RELEASE_SHIFT,
 80                         DA7219_ALC_RELEASE_MAX, da7219_alc_release_rate_txt);
 81 
 82 static const char * const da7219_alc_hold_time_txt[] = {
 83         "62/fs", "124/fs", "248/fs", "496/fs", "992/fs", "1984/fs", "3968/fs",
 84         "7936/fs", "15872/fs", "31744/fs", "63488/fs", "126976/fs",
 85         "253952/fs", "507904/fs", "1015808/fs", "2031616/fs"
 86 };
 87 
 88 static const struct soc_enum da7219_alc_hold_time =
 89         SOC_ENUM_SINGLE(DA7219_ALC_CTRL3, DA7219_ALC_HOLD_SHIFT,
 90                         DA7219_ALC_HOLD_MAX, da7219_alc_hold_time_txt);
 91 
 92 static const char * const da7219_alc_env_rate_txt[] = {
 93         "1/4", "1/16", "1/256", "1/65536"
 94 };
 95 
 96 static const struct soc_enum da7219_alc_env_attack_rate =
 97         SOC_ENUM_SINGLE(DA7219_ALC_CTRL3, DA7219_ALC_INTEG_ATTACK_SHIFT,
 98                         DA7219_ALC_INTEG_MAX, da7219_alc_env_rate_txt);
 99 
100 static const struct soc_enum da7219_alc_env_release_rate =
101         SOC_ENUM_SINGLE(DA7219_ALC_CTRL3, DA7219_ALC_INTEG_RELEASE_SHIFT,
102                         DA7219_ALC_INTEG_MAX, da7219_alc_env_rate_txt);
103 
104 static const char * const da7219_alc_anticlip_step_txt[] = {
105         "0.034dB/fs", "0.068dB/fs", "0.136dB/fs", "0.272dB/fs"
106 };
107 
108 static const struct soc_enum da7219_alc_anticlip_step =
109         SOC_ENUM_SINGLE(DA7219_ALC_ANTICLIP_CTRL,
110                         DA7219_ALC_ANTICLIP_STEP_SHIFT,
111                         DA7219_ALC_ANTICLIP_STEP_MAX,
112                         da7219_alc_anticlip_step_txt);
113 
114 /* Input/Output Enums */
115 static const char * const da7219_gain_ramp_rate_txt[] = {
116         "Nominal Rate * 8", "Nominal Rate", "Nominal Rate / 8",
117         "Nominal Rate / 16"
118 };
119 
120 static const struct soc_enum da7219_gain_ramp_rate =
121         SOC_ENUM_SINGLE(DA7219_GAIN_RAMP_CTRL, DA7219_GAIN_RAMP_RATE_SHIFT,
122                         DA7219_GAIN_RAMP_RATE_MAX, da7219_gain_ramp_rate_txt);
123 
124 static const char * const da7219_hpf_mode_txt[] = {
125         "Disabled", "Audio", "Voice"
126 };
127 
128 static const unsigned int da7219_hpf_mode_val[] = {
129         DA7219_HPF_DISABLED, DA7219_HPF_AUDIO_EN, DA7219_HPF_VOICE_EN,
130 };
131 
132 static const struct soc_enum da7219_adc_hpf_mode =
133         SOC_VALUE_ENUM_SINGLE(DA7219_ADC_FILTERS1, DA7219_HPF_MODE_SHIFT,
134                               DA7219_HPF_MODE_MASK, DA7219_HPF_MODE_MAX,
135                               da7219_hpf_mode_txt, da7219_hpf_mode_val);
136 
137 static const struct soc_enum da7219_dac_hpf_mode =
138         SOC_VALUE_ENUM_SINGLE(DA7219_DAC_FILTERS1, DA7219_HPF_MODE_SHIFT,
139                               DA7219_HPF_MODE_MASK, DA7219_HPF_MODE_MAX,
140                               da7219_hpf_mode_txt, da7219_hpf_mode_val);
141 
142 static const char * const da7219_audio_hpf_corner_txt[] = {
143         "2Hz", "4Hz", "8Hz", "16Hz"
144 };
145 
146 static const struct soc_enum da7219_adc_audio_hpf_corner =
147         SOC_ENUM_SINGLE(DA7219_ADC_FILTERS1,
148                         DA7219_ADC_AUDIO_HPF_CORNER_SHIFT,
149                         DA7219_AUDIO_HPF_CORNER_MAX,
150                         da7219_audio_hpf_corner_txt);
151 
152 static const struct soc_enum da7219_dac_audio_hpf_corner =
153         SOC_ENUM_SINGLE(DA7219_DAC_FILTERS1,
154                         DA7219_DAC_AUDIO_HPF_CORNER_SHIFT,
155                         DA7219_AUDIO_HPF_CORNER_MAX,
156                         da7219_audio_hpf_corner_txt);
157 
158 static const char * const da7219_voice_hpf_corner_txt[] = {
159         "2.5Hz", "25Hz", "50Hz", "100Hz", "150Hz", "200Hz", "300Hz", "400Hz"
160 };
161 
162 static const struct soc_enum da7219_adc_voice_hpf_corner =
163         SOC_ENUM_SINGLE(DA7219_ADC_FILTERS1,
164                         DA7219_ADC_VOICE_HPF_CORNER_SHIFT,
165                         DA7219_VOICE_HPF_CORNER_MAX,
166                         da7219_voice_hpf_corner_txt);
167 
168 static const struct soc_enum da7219_dac_voice_hpf_corner =
169         SOC_ENUM_SINGLE(DA7219_DAC_FILTERS1,
170                         DA7219_DAC_VOICE_HPF_CORNER_SHIFT,
171                         DA7219_VOICE_HPF_CORNER_MAX,
172                         da7219_voice_hpf_corner_txt);
173 
174 static const char * const da7219_tonegen_dtmf_key_txt[] = {
175         "", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D",
176         "*", "#"
177 };
178 
179 static const struct soc_enum da7219_tonegen_dtmf_key =
180         SOC_ENUM_SINGLE(DA7219_TONE_GEN_CFG1, DA7219_DTMF_REG_SHIFT,
181                         DA7219_DTMF_REG_MAX, da7219_tonegen_dtmf_key_txt);
182 
183 static const char * const da7219_tonegen_swg_sel_txt[] = {
184         "Sum", "SWG1", "SWG2", "SWG1_1-Cos"
185 };
186 
187 static const struct soc_enum da7219_tonegen_swg_sel =
188         SOC_ENUM_SINGLE(DA7219_TONE_GEN_CFG2, DA7219_SWG_SEL_SHIFT,
189                         DA7219_SWG_SEL_MAX, da7219_tonegen_swg_sel_txt);
190 
191 /* Output Enums */
192 static const char * const da7219_dac_softmute_rate_txt[] = {
193         "1 Sample", "2 Samples", "4 Samples", "8 Samples", "16 Samples",
194         "32 Samples", "64 Samples"
195 };
196 
197 static const struct soc_enum da7219_dac_softmute_rate =
198         SOC_ENUM_SINGLE(DA7219_DAC_FILTERS5, DA7219_DAC_SOFTMUTE_RATE_SHIFT,
199                         DA7219_DAC_SOFTMUTE_RATE_MAX,
200                         da7219_dac_softmute_rate_txt);
201 
202 static const char * const da7219_dac_ng_setup_time_txt[] = {
203         "256 Samples", "512 Samples", "1024 Samples", "2048 Samples"
204 };
205 
206 static const struct soc_enum da7219_dac_ng_setup_time =
207         SOC_ENUM_SINGLE(DA7219_DAC_NG_SETUP_TIME,
208                         DA7219_DAC_NG_SETUP_TIME_SHIFT,
209                         DA7219_DAC_NG_SETUP_TIME_MAX,
210                         da7219_dac_ng_setup_time_txt);
211 
212 static const char * const da7219_dac_ng_rampup_txt[] = {
213         "0.22ms/dB", "0.0138ms/dB"
214 };
215 
216 static const struct soc_enum da7219_dac_ng_rampup_rate =
217         SOC_ENUM_SINGLE(DA7219_DAC_NG_SETUP_TIME,
218                         DA7219_DAC_NG_RAMPUP_RATE_SHIFT,
219                         DA7219_DAC_NG_RAMP_RATE_MAX,
220                         da7219_dac_ng_rampup_txt);
221 
222 static const char * const da7219_dac_ng_rampdown_txt[] = {
223         "0.88ms/dB", "14.08ms/dB"
224 };
225 
226 static const struct soc_enum da7219_dac_ng_rampdown_rate =
227         SOC_ENUM_SINGLE(DA7219_DAC_NG_SETUP_TIME,
228                         DA7219_DAC_NG_RAMPDN_RATE_SHIFT,
229                         DA7219_DAC_NG_RAMP_RATE_MAX,
230                         da7219_dac_ng_rampdown_txt);
231 
232 
233 static const char * const da7219_cp_track_mode_txt[] = {
234         "Largest Volume", "DAC Volume", "Signal Magnitude"
235 };
236 
237 static const unsigned int da7219_cp_track_mode_val[] = {
238         DA7219_CP_MCHANGE_LARGEST_VOL, DA7219_CP_MCHANGE_DAC_VOL,
239         DA7219_CP_MCHANGE_SIG_MAG
240 };
241 
242 static const struct soc_enum da7219_cp_track_mode =
243         SOC_VALUE_ENUM_SINGLE(DA7219_CP_CTRL, DA7219_CP_MCHANGE_SHIFT,
244                               DA7219_CP_MCHANGE_REL_MASK, DA7219_CP_MCHANGE_MAX,
245                               da7219_cp_track_mode_txt,
246                               da7219_cp_track_mode_val);
247 
248 
249 /*
250  * Control Functions
251  */
252 
253 /* Locked Kcontrol calls */
254 static int da7219_volsw_locked_get(struct snd_kcontrol *kcontrol,
255                                    struct snd_ctl_elem_value *ucontrol)
256 {
257         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
258         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
259         int ret;
260 
261         mutex_lock(&da7219->ctrl_lock);
262         ret = snd_soc_get_volsw(kcontrol, ucontrol);
263         mutex_unlock(&da7219->ctrl_lock);
264 
265         return ret;
266 }
267 
268 static int da7219_volsw_locked_put(struct snd_kcontrol *kcontrol,
269                                    struct snd_ctl_elem_value *ucontrol)
270 {
271         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
272         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
273         int ret;
274 
275         mutex_lock(&da7219->ctrl_lock);
276         ret = snd_soc_put_volsw(kcontrol, ucontrol);
277         mutex_unlock(&da7219->ctrl_lock);
278 
279         return ret;
280 }
281 
282 static int da7219_enum_locked_get(struct snd_kcontrol *kcontrol,
283                                 struct snd_ctl_elem_value *ucontrol)
284 {
285         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
286         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
287         int ret;
288 
289         mutex_lock(&da7219->ctrl_lock);
290         ret = snd_soc_get_enum_double(kcontrol, ucontrol);
291         mutex_unlock(&da7219->ctrl_lock);
292 
293         return ret;
294 }
295 
296 static int da7219_enum_locked_put(struct snd_kcontrol *kcontrol,
297                                 struct snd_ctl_elem_value *ucontrol)
298 {
299         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
300         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
301         int ret;
302 
303         mutex_lock(&da7219->ctrl_lock);
304         ret = snd_soc_put_enum_double(kcontrol, ucontrol);
305         mutex_unlock(&da7219->ctrl_lock);
306 
307         return ret;
308 }
309 
310 /* ALC */
311 static void da7219_alc_calib(struct snd_soc_component *component)
312 {
313         u8 mic_ctrl, mixin_ctrl, adc_ctrl, calib_ctrl;
314 
315         /* Save current state of mic control register */
316         mic_ctrl = snd_soc_component_read(component, DA7219_MIC_1_CTRL);
317 
318         /* Save current state of input mixer control register */
319         mixin_ctrl = snd_soc_component_read(component, DA7219_MIXIN_L_CTRL);
320 
321         /* Save current state of input ADC control register */
322         adc_ctrl = snd_soc_component_read(component, DA7219_ADC_L_CTRL);
323 
324         /* Enable then Mute MIC PGAs */
325         snd_soc_component_update_bits(component, DA7219_MIC_1_CTRL, DA7219_MIC_1_AMP_EN_MASK,
326                             DA7219_MIC_1_AMP_EN_MASK);
327         snd_soc_component_update_bits(component, DA7219_MIC_1_CTRL,
328                             DA7219_MIC_1_AMP_MUTE_EN_MASK,
329                             DA7219_MIC_1_AMP_MUTE_EN_MASK);
330 
331         /* Enable input mixers unmuted */
332         snd_soc_component_update_bits(component, DA7219_MIXIN_L_CTRL,
333                             DA7219_MIXIN_L_AMP_EN_MASK |
334                             DA7219_MIXIN_L_AMP_MUTE_EN_MASK,
335                             DA7219_MIXIN_L_AMP_EN_MASK);
336 
337         /* Enable input filters unmuted */
338         snd_soc_component_update_bits(component, DA7219_ADC_L_CTRL,
339                             DA7219_ADC_L_MUTE_EN_MASK | DA7219_ADC_L_EN_MASK,
340                             DA7219_ADC_L_EN_MASK);
341 
342         /* Perform auto calibration */
343         snd_soc_component_update_bits(component, DA7219_ALC_CTRL1,
344                             DA7219_ALC_AUTO_CALIB_EN_MASK,
345                             DA7219_ALC_AUTO_CALIB_EN_MASK);
346         do {
347                 calib_ctrl = snd_soc_component_read(component, DA7219_ALC_CTRL1);
348         } while (calib_ctrl & DA7219_ALC_AUTO_CALIB_EN_MASK);
349 
350         /* If auto calibration fails, disable DC offset, hybrid ALC */
351         if (calib_ctrl & DA7219_ALC_CALIB_OVERFLOW_MASK) {
352                 dev_warn(component->dev,
353                          "ALC auto calibration failed with overflow\n");
354                 snd_soc_component_update_bits(component, DA7219_ALC_CTRL1,
355                                     DA7219_ALC_OFFSET_EN_MASK |
356                                     DA7219_ALC_SYNC_MODE_MASK, 0);
357         } else {
358                 /* Enable DC offset cancellation, hybrid mode */
359                 snd_soc_component_update_bits(component, DA7219_ALC_CTRL1,
360                                     DA7219_ALC_OFFSET_EN_MASK |
361                                     DA7219_ALC_SYNC_MODE_MASK,
362                                     DA7219_ALC_OFFSET_EN_MASK |
363                                     DA7219_ALC_SYNC_MODE_MASK);
364         }
365 
366         /* Restore input filter control register to original state */
367         snd_soc_component_write(component, DA7219_ADC_L_CTRL, adc_ctrl);
368 
369         /* Restore input mixer control registers to original state */
370         snd_soc_component_write(component, DA7219_MIXIN_L_CTRL, mixin_ctrl);
371 
372         /* Restore MIC control registers to original states */
373         snd_soc_component_write(component, DA7219_MIC_1_CTRL, mic_ctrl);
374 }
375 
376 static int da7219_mixin_gain_put(struct snd_kcontrol *kcontrol,
377                                  struct snd_ctl_elem_value *ucontrol)
378 {
379         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
380         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
381         int ret;
382 
383         ret = snd_soc_put_volsw(kcontrol, ucontrol);
384 
385         /*
386          * If ALC in operation and value of control has been updated,
387          * make sure calibrated offsets are updated.
388          */
389         if ((ret == 1) && (da7219->alc_en))
390                 da7219_alc_calib(component);
391 
392         return ret;
393 }
394 
395 static int da7219_alc_sw_put(struct snd_kcontrol *kcontrol,
396                              struct snd_ctl_elem_value *ucontrol)
397 {
398         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
399         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
400 
401 
402         /* Force ALC offset calibration if enabling ALC */
403         if ((ucontrol->value.integer.value[0]) && (!da7219->alc_en)) {
404                 da7219_alc_calib(component);
405                 da7219->alc_en = true;
406         } else {
407                 da7219->alc_en = false;
408         }
409 
410         return snd_soc_put_volsw(kcontrol, ucontrol);
411 }
412 
413 /* ToneGen */
414 static int da7219_tonegen_freq_get(struct snd_kcontrol *kcontrol,
415                                    struct snd_ctl_elem_value *ucontrol)
416 {
417         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
418         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
419         struct soc_mixer_control *mixer_ctrl =
420                 (struct soc_mixer_control *) kcontrol->private_value;
421         unsigned int reg = mixer_ctrl->reg;
422         __le16 val;
423         int ret;
424 
425         mutex_lock(&da7219->ctrl_lock);
426         ret = regmap_raw_read(da7219->regmap, reg, &val, sizeof(val));
427         mutex_unlock(&da7219->ctrl_lock);
428 
429         if (ret)
430                 return ret;
431 
432         /*
433          * Frequency value spans two 8-bit registers, lower then upper byte.
434          * Therefore we need to convert to host endianness here.
435          */
436         ucontrol->value.integer.value[0] = le16_to_cpu(val);
437 
438         return 0;
439 }
440 
441 static int da7219_tonegen_freq_put(struct snd_kcontrol *kcontrol,
442                                    struct snd_ctl_elem_value *ucontrol)
443 {
444         struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
445         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
446         struct soc_mixer_control *mixer_ctrl =
447                 (struct soc_mixer_control *) kcontrol->private_value;
448         unsigned int reg = mixer_ctrl->reg;
449         __le16 val;
450         int ret;
451 
452         /*
453          * Frequency value spans two 8-bit registers, lower then upper byte.
454          * Therefore we need to convert to little endian here to align with
455          * HW registers.
456          */
457         val = cpu_to_le16(ucontrol->value.integer.value[0]);
458 
459         mutex_lock(&da7219->ctrl_lock);
460         ret = regmap_raw_write(da7219->regmap, reg, &val, sizeof(val));
461         mutex_unlock(&da7219->ctrl_lock);
462 
463         return ret;
464 }
465 
466 
467 /*
468  * KControls
469  */
470 
471 static const struct snd_kcontrol_new da7219_snd_controls[] = {
472         /* Mics */
473         SOC_SINGLE_TLV("Mic Volume", DA7219_MIC_1_GAIN,
474                        DA7219_MIC_1_AMP_GAIN_SHIFT, DA7219_MIC_1_AMP_GAIN_MAX,
475                        DA7219_NO_INVERT, da7219_mic_gain_tlv),
476         SOC_SINGLE("Mic Switch", DA7219_MIC_1_CTRL,
477                    DA7219_MIC_1_AMP_MUTE_EN_SHIFT, DA7219_SWITCH_EN_MAX,
478                    DA7219_INVERT),
479 
480         /* Mixer Input */
481         SOC_SINGLE_EXT_TLV("Mixin Volume", DA7219_MIXIN_L_GAIN,
482                            DA7219_MIXIN_L_AMP_GAIN_SHIFT,
483                            DA7219_MIXIN_L_AMP_GAIN_MAX, DA7219_NO_INVERT,
484                            snd_soc_get_volsw, da7219_mixin_gain_put,
485                            da7219_mixin_gain_tlv),
486         SOC_SINGLE("Mixin Switch", DA7219_MIXIN_L_CTRL,
487                    DA7219_MIXIN_L_AMP_MUTE_EN_SHIFT, DA7219_SWITCH_EN_MAX,
488                    DA7219_INVERT),
489         SOC_SINGLE("Mixin Gain Ramp Switch", DA7219_MIXIN_L_CTRL,
490                    DA7219_MIXIN_L_AMP_RAMP_EN_SHIFT, DA7219_SWITCH_EN_MAX,
491                    DA7219_NO_INVERT),
492         SOC_SINGLE("Mixin ZC Gain Switch", DA7219_MIXIN_L_CTRL,
493                    DA7219_MIXIN_L_AMP_ZC_EN_SHIFT, DA7219_SWITCH_EN_MAX,
494                    DA7219_NO_INVERT),
495 
496         /* ADC */
497         SOC_SINGLE_TLV("Capture Digital Volume", DA7219_ADC_L_GAIN,
498                        DA7219_ADC_L_DIGITAL_GAIN_SHIFT,
499                        DA7219_ADC_L_DIGITAL_GAIN_MAX, DA7219_NO_INVERT,
500                        da7219_adc_dig_gain_tlv),
501         SOC_SINGLE("Capture Digital Switch", DA7219_ADC_L_CTRL,
502                    DA7219_ADC_L_MUTE_EN_SHIFT, DA7219_SWITCH_EN_MAX,
503                    DA7219_INVERT),
504         SOC_SINGLE("Capture Digital Gain Ramp Switch", DA7219_ADC_L_CTRL,
505                    DA7219_ADC_L_RAMP_EN_SHIFT, DA7219_SWITCH_EN_MAX,
506                    DA7219_NO_INVERT),
507 
508         /* ALC */
509         SOC_ENUM("ALC Attack Rate", da7219_alc_attack_rate),
510         SOC_ENUM("ALC Release Rate", da7219_alc_release_rate),
511         SOC_ENUM("ALC Hold Time", da7219_alc_hold_time),
512         SOC_ENUM("ALC Envelope Attack Rate", da7219_alc_env_attack_rate),
513         SOC_ENUM("ALC Envelope Release Rate", da7219_alc_env_release_rate),
514         SOC_SINGLE_TLV("ALC Noise Threshold", DA7219_ALC_NOISE,
515                        DA7219_ALC_NOISE_SHIFT, DA7219_ALC_THRESHOLD_MAX,
516                        DA7219_INVERT, da7219_alc_threshold_tlv),
517         SOC_SINGLE_TLV("ALC Min Threshold", DA7219_ALC_TARGET_MIN,
518                        DA7219_ALC_THRESHOLD_MIN_SHIFT, DA7219_ALC_THRESHOLD_MAX,
519                        DA7219_INVERT, da7219_alc_threshold_tlv),
520         SOC_SINGLE_TLV("ALC Max Threshold", DA7219_ALC_TARGET_MAX,
521                        DA7219_ALC_THRESHOLD_MAX_SHIFT, DA7219_ALC_THRESHOLD_MAX,
522                        DA7219_INVERT, da7219_alc_threshold_tlv),
523         SOC_SINGLE_TLV("ALC Max Attenuation", DA7219_ALC_GAIN_LIMITS,
524                        DA7219_ALC_ATTEN_MAX_SHIFT, DA7219_ALC_ATTEN_GAIN_MAX,
525                        DA7219_NO_INVERT, da7219_alc_gain_tlv),
526         SOC_SINGLE_TLV("ALC Max Volume", DA7219_ALC_GAIN_LIMITS,
527                        DA7219_ALC_GAIN_MAX_SHIFT, DA7219_ALC_ATTEN_GAIN_MAX,
528                        DA7219_NO_INVERT, da7219_alc_gain_tlv),
529         SOC_SINGLE_RANGE_TLV("ALC Min Analog Volume", DA7219_ALC_ANA_GAIN_LIMITS,
530                              DA7219_ALC_ANA_GAIN_MIN_SHIFT,
531                              DA7219_ALC_ANA_GAIN_MIN, DA7219_ALC_ANA_GAIN_MAX,
532                              DA7219_NO_INVERT, da7219_alc_ana_gain_tlv),
533         SOC_SINGLE_RANGE_TLV("ALC Max Analog Volume", DA7219_ALC_ANA_GAIN_LIMITS,
534                              DA7219_ALC_ANA_GAIN_MAX_SHIFT,
535                              DA7219_ALC_ANA_GAIN_MIN, DA7219_ALC_ANA_GAIN_MAX,
536                              DA7219_NO_INVERT, da7219_alc_ana_gain_tlv),
537         SOC_ENUM("ALC Anticlip Step", da7219_alc_anticlip_step),
538         SOC_SINGLE("ALC Anticlip Switch", DA7219_ALC_ANTICLIP_CTRL,
539                    DA7219_ALC_ANTIPCLIP_EN_SHIFT, DA7219_SWITCH_EN_MAX,
540                    DA7219_NO_INVERT),
541         SOC_SINGLE_EXT("ALC Switch", DA7219_ALC_CTRL1, DA7219_ALC_EN_SHIFT,
542                        DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT,
543                        snd_soc_get_volsw, da7219_alc_sw_put),
544 
545         /* Input High-Pass Filters */
546         SOC_ENUM("ADC HPF Mode", da7219_adc_hpf_mode),
547         SOC_ENUM("ADC HPF Corner Audio", da7219_adc_audio_hpf_corner),
548         SOC_ENUM("ADC HPF Corner Voice", da7219_adc_voice_hpf_corner),
549 
550         /* Sidetone Filter */
551         SOC_SINGLE_TLV("Sidetone Volume", DA7219_SIDETONE_GAIN,
552                        DA7219_SIDETONE_GAIN_SHIFT, DA7219_SIDETONE_GAIN_MAX,
553                        DA7219_NO_INVERT, da7219_sidetone_gain_tlv),
554         SOC_SINGLE("Sidetone Switch", DA7219_SIDETONE_CTRL,
555                    DA7219_SIDETONE_MUTE_EN_SHIFT, DA7219_SWITCH_EN_MAX,
556                    DA7219_INVERT),
557 
558         /* Tone Generator */
559         SOC_SINGLE_EXT_TLV("ToneGen Volume", DA7219_TONE_GEN_CFG2,
560                            DA7219_TONE_GEN_GAIN_SHIFT, DA7219_TONE_GEN_GAIN_MAX,
561                            DA7219_NO_INVERT, da7219_volsw_locked_get,
562                            da7219_volsw_locked_put, da7219_tonegen_gain_tlv),
563         SOC_ENUM_EXT("ToneGen DTMF Key", da7219_tonegen_dtmf_key,
564                      da7219_enum_locked_get, da7219_enum_locked_put),
565         SOC_SINGLE_EXT("ToneGen DTMF Switch", DA7219_TONE_GEN_CFG1,
566                        DA7219_DTMF_EN_SHIFT, DA7219_SWITCH_EN_MAX,
567                        DA7219_NO_INVERT, da7219_volsw_locked_get,
568                        da7219_volsw_locked_put),
569         SOC_ENUM_EXT("ToneGen Sinewave Gen Type", da7219_tonegen_swg_sel,
570                      da7219_enum_locked_get, da7219_enum_locked_put),
571         SOC_SINGLE_EXT("ToneGen Sinewave1 Freq", DA7219_TONE_GEN_FREQ1_L,
572                        DA7219_FREQ1_L_SHIFT, DA7219_FREQ_MAX, DA7219_NO_INVERT,
573                        da7219_tonegen_freq_get, da7219_tonegen_freq_put),
574         SOC_SINGLE_EXT("ToneGen Sinewave2 Freq", DA7219_TONE_GEN_FREQ2_L,
575                        DA7219_FREQ2_L_SHIFT, DA7219_FREQ_MAX, DA7219_NO_INVERT,
576                        da7219_tonegen_freq_get, da7219_tonegen_freq_put),
577         SOC_SINGLE_EXT("ToneGen On Time", DA7219_TONE_GEN_ON_PER,
578                        DA7219_BEEP_ON_PER_SHIFT, DA7219_BEEP_ON_OFF_MAX,
579                        DA7219_NO_INVERT, da7219_volsw_locked_get,
580                        da7219_volsw_locked_put),
581         SOC_SINGLE("ToneGen Off Time", DA7219_TONE_GEN_OFF_PER,
582                    DA7219_BEEP_OFF_PER_SHIFT, DA7219_BEEP_ON_OFF_MAX,
583                    DA7219_NO_INVERT),
584 
585         /* Gain ramping */
586         SOC_ENUM("Gain Ramp Rate", da7219_gain_ramp_rate),
587 
588         /* DAC High-Pass Filter */
589         SOC_ENUM_EXT("DAC HPF Mode", da7219_dac_hpf_mode,
590                      da7219_enum_locked_get, da7219_enum_locked_put),
591         SOC_ENUM("DAC HPF Corner Audio", da7219_dac_audio_hpf_corner),
592         SOC_ENUM("DAC HPF Corner Voice", da7219_dac_voice_hpf_corner),
593 
594         /* DAC 5-Band Equaliser */
595         SOC_SINGLE_TLV("DAC EQ Band1 Volume", DA7219_DAC_FILTERS2,
596                        DA7219_DAC_EQ_BAND1_SHIFT, DA7219_DAC_EQ_BAND_MAX,
597                        DA7219_NO_INVERT, da7219_dac_eq_band_tlv),
598         SOC_SINGLE_TLV("DAC EQ Band2 Volume", DA7219_DAC_FILTERS2,
599                        DA7219_DAC_EQ_BAND2_SHIFT, DA7219_DAC_EQ_BAND_MAX,
600                        DA7219_NO_INVERT, da7219_dac_eq_band_tlv),
601         SOC_SINGLE_TLV("DAC EQ Band3 Volume", DA7219_DAC_FILTERS3,
602                        DA7219_DAC_EQ_BAND3_SHIFT, DA7219_DAC_EQ_BAND_MAX,
603                        DA7219_NO_INVERT, da7219_dac_eq_band_tlv),
604         SOC_SINGLE_TLV("DAC EQ Band4 Volume", DA7219_DAC_FILTERS3,
605                        DA7219_DAC_EQ_BAND4_SHIFT, DA7219_DAC_EQ_BAND_MAX,
606                        DA7219_NO_INVERT, da7219_dac_eq_band_tlv),
607         SOC_SINGLE_TLV("DAC EQ Band5 Volume", DA7219_DAC_FILTERS4,
608                        DA7219_DAC_EQ_BAND5_SHIFT, DA7219_DAC_EQ_BAND_MAX,
609                        DA7219_NO_INVERT, da7219_dac_eq_band_tlv),
610         SOC_SINGLE_EXT("DAC EQ Switch", DA7219_DAC_FILTERS4,
611                        DA7219_DAC_EQ_EN_SHIFT, DA7219_SWITCH_EN_MAX,
612                        DA7219_NO_INVERT, da7219_volsw_locked_get,
613                        da7219_volsw_locked_put),
614 
615         /* DAC Softmute */
616         SOC_ENUM("DAC Soft Mute Rate", da7219_dac_softmute_rate),
617         SOC_SINGLE_EXT("DAC Soft Mute Switch", DA7219_DAC_FILTERS5,
618                        DA7219_DAC_SOFTMUTE_EN_SHIFT, DA7219_SWITCH_EN_MAX,
619                        DA7219_NO_INVERT, da7219_volsw_locked_get,
620                        da7219_volsw_locked_put),
621 
622         /* DAC Noise Gate */
623         SOC_ENUM("DAC NG Setup Time", da7219_dac_ng_setup_time),
624         SOC_ENUM("DAC NG Rampup Rate", da7219_dac_ng_rampup_rate),
625         SOC_ENUM("DAC NG Rampdown Rate", da7219_dac_ng_rampdown_rate),
626         SOC_SINGLE_TLV("DAC NG Off Threshold", DA7219_DAC_NG_OFF_THRESH,
627                        DA7219_DAC_NG_OFF_THRESHOLD_SHIFT,
628                        DA7219_DAC_NG_THRESHOLD_MAX, DA7219_NO_INVERT,
629                        da7219_dac_ng_threshold_tlv),
630         SOC_SINGLE_TLV("DAC NG On Threshold", DA7219_DAC_NG_ON_THRESH,
631                        DA7219_DAC_NG_ON_THRESHOLD_SHIFT,
632                        DA7219_DAC_NG_THRESHOLD_MAX, DA7219_NO_INVERT,
633                        da7219_dac_ng_threshold_tlv),
634         SOC_SINGLE("DAC NG Switch", DA7219_DAC_NG_CTRL, DA7219_DAC_NG_EN_SHIFT,
635                    DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),
636 
637         /* DACs */
638         SOC_DOUBLE_R_EXT_TLV("Playback Digital Volume", DA7219_DAC_L_GAIN,
639                              DA7219_DAC_R_GAIN, DA7219_DAC_L_DIGITAL_GAIN_SHIFT,
640                              DA7219_DAC_DIGITAL_GAIN_MAX, DA7219_NO_INVERT,
641                              da7219_volsw_locked_get, da7219_volsw_locked_put,
642                              da7219_dac_dig_gain_tlv),
643         SOC_DOUBLE_R_EXT("Playback Digital Switch", DA7219_DAC_L_CTRL,
644                          DA7219_DAC_R_CTRL, DA7219_DAC_L_MUTE_EN_SHIFT,
645                          DA7219_SWITCH_EN_MAX, DA7219_INVERT,
646                          da7219_volsw_locked_get, da7219_volsw_locked_put),
647         SOC_DOUBLE_R("Playback Digital Gain Ramp Switch", DA7219_DAC_L_CTRL,
648                      DA7219_DAC_R_CTRL, DA7219_DAC_L_RAMP_EN_SHIFT,
649                      DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),
650 
651         /* CP */
652         SOC_ENUM("Charge Pump Track Mode", da7219_cp_track_mode),
653         SOC_SINGLE("Charge Pump Threshold", DA7219_CP_VOL_THRESHOLD1,
654                    DA7219_CP_THRESH_VDD2_SHIFT, DA7219_CP_THRESH_VDD2_MAX,
655                    DA7219_NO_INVERT),
656 
657         /* Headphones */
658         SOC_DOUBLE_R_EXT_TLV("Headphone Volume", DA7219_HP_L_GAIN,
659                              DA7219_HP_R_GAIN, DA7219_HP_L_AMP_GAIN_SHIFT,
660                              DA7219_HP_AMP_GAIN_MAX, DA7219_NO_INVERT,
661                              da7219_volsw_locked_get, da7219_volsw_locked_put,
662                              da7219_hp_gain_tlv),
663         SOC_DOUBLE_R_EXT("Headphone Switch", DA7219_HP_L_CTRL, DA7219_HP_R_CTRL,
664                          DA7219_HP_L_AMP_MUTE_EN_SHIFT, DA7219_SWITCH_EN_MAX,
665                          DA7219_INVERT, da7219_volsw_locked_get,
666                          da7219_volsw_locked_put),
667         SOC_DOUBLE_R("Headphone Gain Ramp Switch", DA7219_HP_L_CTRL,
668                      DA7219_HP_R_CTRL, DA7219_HP_L_AMP_RAMP_EN_SHIFT,
669                      DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),
670         SOC_DOUBLE_R("Headphone ZC Gain Switch", DA7219_HP_L_CTRL,
671                      DA7219_HP_R_CTRL, DA7219_HP_L_AMP_ZC_EN_SHIFT,
672                      DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),
673 };
674 
675 
676 /*
677  * DAPM Mux Controls
678  */
679 
680 static const char * const da7219_out_sel_txt[] = {
681         "ADC", "Tone Generator", "DAIL", "DAIR"
682 };
683 
684 static const struct soc_enum da7219_out_dail_sel =
685         SOC_ENUM_SINGLE(DA7219_DIG_ROUTING_DAI,
686                         DA7219_DAI_L_SRC_SHIFT,
687                         DA7219_OUT_SRC_MAX,
688                         da7219_out_sel_txt);
689 
690 static const struct snd_kcontrol_new da7219_out_dail_sel_mux =
691         SOC_DAPM_ENUM("Out DAIL Mux", da7219_out_dail_sel);
692 
693 static const struct soc_enum da7219_out_dair_sel =
694         SOC_ENUM_SINGLE(DA7219_DIG_ROUTING_DAI,
695                         DA7219_DAI_R_SRC_SHIFT,
696                         DA7219_OUT_SRC_MAX,
697                         da7219_out_sel_txt);
698 
699 static const struct snd_kcontrol_new da7219_out_dair_sel_mux =
700         SOC_DAPM_ENUM("Out DAIR Mux", da7219_out_dair_sel);
701 
702 static const struct soc_enum da7219_out_dacl_sel =
703         SOC_ENUM_SINGLE(DA7219_DIG_ROUTING_DAC,
704                         DA7219_DAC_L_SRC_SHIFT,
705                         DA7219_OUT_SRC_MAX,
706                         da7219_out_sel_txt);
707 
708 static const struct snd_kcontrol_new da7219_out_dacl_sel_mux =
709         SOC_DAPM_ENUM("Out DACL Mux", da7219_out_dacl_sel);
710 
711 static const struct soc_enum da7219_out_dacr_sel =
712         SOC_ENUM_SINGLE(DA7219_DIG_ROUTING_DAC,
713                         DA7219_DAC_R_SRC_SHIFT,
714                         DA7219_OUT_SRC_MAX,
715                         da7219_out_sel_txt);
716 
717 static const struct snd_kcontrol_new da7219_out_dacr_sel_mux =
718         SOC_DAPM_ENUM("Out DACR Mux", da7219_out_dacr_sel);
719 
720 
721 /*
722  * DAPM Mixer Controls
723  */
724 
725 static const struct snd_kcontrol_new da7219_mixin_controls[] = {
726         SOC_DAPM_SINGLE("Mic Switch", DA7219_MIXIN_L_SELECT,
727                         DA7219_MIXIN_L_MIX_SELECT_SHIFT,
728                         DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),
729 };
730 
731 static const struct snd_kcontrol_new da7219_mixout_l_controls[] = {
732         SOC_DAPM_SINGLE("DACL Switch", DA7219_MIXOUT_L_SELECT,
733                         DA7219_MIXOUT_L_MIX_SELECT_SHIFT,
734                         DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),
735 };
736 
737 static const struct snd_kcontrol_new da7219_mixout_r_controls[] = {
738         SOC_DAPM_SINGLE("DACR Switch", DA7219_MIXOUT_R_SELECT,
739                         DA7219_MIXOUT_R_MIX_SELECT_SHIFT,
740                         DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),
741 };
742 
743 #define DA7219_DMIX_ST_CTRLS(reg)                                       \
744         SOC_DAPM_SINGLE("Out FilterL Switch", reg,                      \
745                         DA7219_DMIX_ST_SRC_OUTFILT1L_SHIFT,             \
746                         DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),        \
747         SOC_DAPM_SINGLE("Out FilterR Switch", reg,                      \
748                         DA7219_DMIX_ST_SRC_OUTFILT1R_SHIFT,             \
749                         DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),        \
750         SOC_DAPM_SINGLE("Sidetone Switch", reg,                         \
751                         DA7219_DMIX_ST_SRC_SIDETONE_SHIFT,              \
752                         DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT)         \
753 
754 static const struct snd_kcontrol_new da7219_st_out_filtl_mix_controls[] = {
755         DA7219_DMIX_ST_CTRLS(DA7219_DROUTING_ST_OUTFILT_1L),
756 };
757 
758 static const struct snd_kcontrol_new da7219_st_out_filtr_mix_controls[] = {
759         DA7219_DMIX_ST_CTRLS(DA7219_DROUTING_ST_OUTFILT_1R),
760 };
761 
762 
763 /*
764  * DAPM Events
765  */
766 
767 static int da7219_mic_pga_event(struct snd_soc_dapm_widget *w,
768                                 struct snd_kcontrol *kcontrol, int event)
769 {
770         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
771         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
772 
773         switch (event) {
774         case SND_SOC_DAPM_POST_PMU:
775                 if (da7219->micbias_on_event) {
776                         /*
777                          * Delay only for first capture after bias enabled to
778                          * avoid possible DC offset related noise.
779                          */
780                         da7219->micbias_on_event = false;
781                         msleep(da7219->mic_pga_delay);
782                 }
783                 break;
784         default:
785                 break;
786         }
787 
788         return 0;
789 }
790 
791 static int da7219_dai_event(struct snd_soc_dapm_widget *w,
792                             struct snd_kcontrol *kcontrol, int event)
793 {
794         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
795         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
796         struct clk *bclk = da7219->dai_clks[DA7219_DAI_BCLK_IDX];
797         u8 pll_ctrl, pll_status;
798         int i = 0, ret;
799         bool srm_lock = false;
800 
801         switch (event) {
802         case SND_SOC_DAPM_PRE_PMU:
803                 if (da7219->master) {
804                         /* Enable DAI clks for master mode */
805                         if (bclk) {
806                                 ret = clk_prepare_enable(bclk);
807                                 if (ret) {
808                                         dev_err(component->dev,
809                                                 "Failed to enable DAI clks\n");
810                                         return ret;
811                                 }
812                         } else {
813                                 snd_soc_component_update_bits(component,
814                                                               DA7219_DAI_CLK_MODE,
815                                                               DA7219_DAI_CLK_EN_MASK,
816                                                               DA7219_DAI_CLK_EN_MASK);
817                         }
818                 }
819 
820                 /* PC synchronised to DAI */
821                 snd_soc_component_update_bits(component, DA7219_PC_COUNT,
822                                     DA7219_PC_FREERUN_MASK, 0);
823 
824                 /* Slave mode, if SRM not enabled no need for status checks */
825                 pll_ctrl = snd_soc_component_read(component, DA7219_PLL_CTRL);
826                 if ((pll_ctrl & DA7219_PLL_MODE_MASK) != DA7219_PLL_MODE_SRM)
827                         return 0;
828 
829                 /* Check SRM has locked */
830                 do {
831                         pll_status = snd_soc_component_read(component, DA7219_PLL_SRM_STS);
832                         if (pll_status & DA7219_PLL_SRM_STS_SRM_LOCK) {
833                                 srm_lock = true;
834                         } else {
835                                 ++i;
836                                 msleep(50);
837                         }
838                 } while ((i < DA7219_SRM_CHECK_RETRIES) && (!srm_lock));
839 
840                 if (!srm_lock)
841                         dev_warn(component->dev, "SRM failed to lock\n");
842 
843                 return 0;
844         case SND_SOC_DAPM_POST_PMD:
845                 /* PC free-running */
846                 snd_soc_component_update_bits(component, DA7219_PC_COUNT,
847                                     DA7219_PC_FREERUN_MASK,
848                                     DA7219_PC_FREERUN_MASK);
849 
850                 /* Disable DAI clks if in master mode */
851                 if (da7219->master) {
852                         if (bclk)
853                                 clk_disable_unprepare(bclk);
854                         else
855                                 snd_soc_component_update_bits(component,
856                                                               DA7219_DAI_CLK_MODE,
857                                                               DA7219_DAI_CLK_EN_MASK,
858                                                               0);
859                 }
860 
861                 return 0;
862         default:
863                 return -EINVAL;
864         }
865 }
866 
867 static int da7219_settling_event(struct snd_soc_dapm_widget *w,
868                                  struct snd_kcontrol *kcontrol, int event)
869 {
870         switch (event) {
871         case SND_SOC_DAPM_POST_PMU:
872         case SND_SOC_DAPM_POST_PMD:
873                 msleep(DA7219_SETTLING_DELAY);
874                 break;
875         default:
876                 break;
877         }
878 
879         return 0;
880 }
881 
882 static int da7219_mixout_event(struct snd_soc_dapm_widget *w,
883                                struct snd_kcontrol *kcontrol, int event)
884 {
885         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
886         u8 hp_ctrl, min_gain_mask;
887 
888         switch (w->reg) {
889         case DA7219_MIXOUT_L_CTRL:
890                 hp_ctrl = DA7219_HP_L_CTRL;
891                 min_gain_mask = DA7219_HP_L_AMP_MIN_GAIN_EN_MASK;
892                 break;
893         case DA7219_MIXOUT_R_CTRL:
894                 hp_ctrl = DA7219_HP_R_CTRL;
895                 min_gain_mask = DA7219_HP_R_AMP_MIN_GAIN_EN_MASK;
896                 break;
897         default:
898                 return -EINVAL;
899         }
900 
901         switch (event) {
902         case SND_SOC_DAPM_PRE_PMD:
903                 /* Enable minimum gain on HP to avoid pops */
904                 snd_soc_component_update_bits(component, hp_ctrl, min_gain_mask,
905                                     min_gain_mask);
906 
907                 msleep(DA7219_MIN_GAIN_DELAY);
908 
909                 break;
910         case SND_SOC_DAPM_POST_PMU:
911                 /* Remove minimum gain on HP */
912                 snd_soc_component_update_bits(component, hp_ctrl, min_gain_mask, 0);
913 
914                 break;
915         }
916 
917         return 0;
918 }
919 
920 static int da7219_gain_ramp_event(struct snd_soc_dapm_widget *w,
921                                   struct snd_kcontrol *kcontrol, int event)
922 {
923         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
924         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
925 
926         switch (event) {
927         case SND_SOC_DAPM_PRE_PMU:
928         case SND_SOC_DAPM_PRE_PMD:
929                 /* Ensure nominal gain ramping for DAPM sequence */
930                 da7219->gain_ramp_ctrl =
931                         snd_soc_component_read(component, DA7219_GAIN_RAMP_CTRL);
932                 snd_soc_component_write(component, DA7219_GAIN_RAMP_CTRL,
933                               DA7219_GAIN_RAMP_RATE_NOMINAL);
934                 break;
935         case SND_SOC_DAPM_POST_PMU:
936         case SND_SOC_DAPM_POST_PMD:
937                 /* Restore previous gain ramp settings */
938                 snd_soc_component_write(component, DA7219_GAIN_RAMP_CTRL,
939                               da7219->gain_ramp_ctrl);
940                 break;
941         }
942 
943         return 0;
944 }
945 
946 
947 /*
948  * DAPM Widgets
949  */
950 
951 static const struct snd_soc_dapm_widget da7219_dapm_widgets[] = {
952         /* Input Supplies */
953         SND_SOC_DAPM_SUPPLY("Mic Bias", DA7219_MICBIAS_CTRL,
954                             DA7219_MICBIAS1_EN_SHIFT, DA7219_NO_INVERT,
955                             NULL, 0),
956 
957         /* Inputs */
958         SND_SOC_DAPM_INPUT("MIC"),
959 
960         /* Input PGAs */
961         SND_SOC_DAPM_PGA_E("Mic PGA", DA7219_MIC_1_CTRL,
962                            DA7219_MIC_1_AMP_EN_SHIFT, DA7219_NO_INVERT,
963                            NULL, 0, da7219_mic_pga_event, SND_SOC_DAPM_POST_PMU),
964         SND_SOC_DAPM_PGA_E("Mixin PGA", DA7219_MIXIN_L_CTRL,
965                            DA7219_MIXIN_L_AMP_EN_SHIFT, DA7219_NO_INVERT,
966                            NULL, 0, da7219_settling_event, SND_SOC_DAPM_POST_PMU),
967 
968         /* Input Filters */
969         SND_SOC_DAPM_ADC("ADC", NULL, DA7219_ADC_L_CTRL, DA7219_ADC_L_EN_SHIFT,
970                          DA7219_NO_INVERT),
971 
972         /* Tone Generator */
973         SND_SOC_DAPM_SIGGEN("TONE"),
974         SND_SOC_DAPM_PGA("Tone Generator", DA7219_TONE_GEN_CFG1,
975                          DA7219_START_STOPN_SHIFT, DA7219_NO_INVERT, NULL, 0),
976 
977         /* Sidetone Input */
978         SND_SOC_DAPM_ADC("Sidetone Filter", NULL, DA7219_SIDETONE_CTRL,
979                          DA7219_SIDETONE_EN_SHIFT, DA7219_NO_INVERT),
980 
981         /* Input Mixer Supply */
982         SND_SOC_DAPM_SUPPLY("Mixer In Supply", DA7219_MIXIN_L_CTRL,
983                             DA7219_MIXIN_L_MIX_EN_SHIFT, DA7219_NO_INVERT,
984                             NULL, 0),
985 
986         /* Input Mixer */
987         SND_SOC_DAPM_MIXER("Mixer In", SND_SOC_NOPM, 0, 0,
988                            da7219_mixin_controls,
989                            ARRAY_SIZE(da7219_mixin_controls)),
990 
991         /* Input Muxes */
992         SND_SOC_DAPM_MUX("Out DAIL Mux", SND_SOC_NOPM, 0, 0,
993                          &da7219_out_dail_sel_mux),
994         SND_SOC_DAPM_MUX("Out DAIR Mux", SND_SOC_NOPM, 0, 0,
995                          &da7219_out_dair_sel_mux),
996 
997         /* DAI Supply */
998         SND_SOC_DAPM_SUPPLY("DAI", DA7219_DAI_CTRL, DA7219_DAI_EN_SHIFT,
999                             DA7219_NO_INVERT, da7219_dai_event,
1000                             SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
1001 
1002         /* DAI */
1003         SND_SOC_DAPM_AIF_OUT("DAIOUT", "Capture", 0, DA7219_DAI_TDM_CTRL,
1004                              DA7219_DAI_OE_SHIFT, DA7219_NO_INVERT),
1005         SND_SOC_DAPM_AIF_IN("DAIIN", "Playback", 0, SND_SOC_NOPM, 0, 0),
1006 
1007         /* Output Muxes */
1008         SND_SOC_DAPM_MUX("Out DACL Mux", SND_SOC_NOPM, 0, 0,
1009                          &da7219_out_dacl_sel_mux),
1010         SND_SOC_DAPM_MUX("Out DACR Mux", SND_SOC_NOPM, 0, 0,
1011                          &da7219_out_dacr_sel_mux),
1012 
1013         /* Output Mixers */
1014         SND_SOC_DAPM_MIXER("Mixer Out FilterL", SND_SOC_NOPM, 0, 0,
1015                            da7219_mixout_l_controls,
1016                            ARRAY_SIZE(da7219_mixout_l_controls)),
1017         SND_SOC_DAPM_MIXER("Mixer Out FilterR", SND_SOC_NOPM, 0, 0,
1018                            da7219_mixout_r_controls,
1019                            ARRAY_SIZE(da7219_mixout_r_controls)),
1020 
1021         /* Sidetone Mixers */
1022         SND_SOC_DAPM_MIXER("ST Mixer Out FilterL", SND_SOC_NOPM, 0, 0,
1023                            da7219_st_out_filtl_mix_controls,
1024                            ARRAY_SIZE(da7219_st_out_filtl_mix_controls)),
1025         SND_SOC_DAPM_MIXER("ST Mixer Out FilterR", SND_SOC_NOPM, 0,
1026                            0, da7219_st_out_filtr_mix_controls,
1027                            ARRAY_SIZE(da7219_st_out_filtr_mix_controls)),
1028 
1029         /* DACs */
1030         SND_SOC_DAPM_DAC_E("DACL", NULL, DA7219_DAC_L_CTRL,
1031                            DA7219_DAC_L_EN_SHIFT, DA7219_NO_INVERT,
1032                            da7219_settling_event,
1033                            SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1034         SND_SOC_DAPM_DAC_E("DACR", NULL, DA7219_DAC_R_CTRL,
1035                            DA7219_DAC_R_EN_SHIFT, DA7219_NO_INVERT,
1036                            da7219_settling_event,
1037                            SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1038 
1039         /* Output PGAs */
1040         SND_SOC_DAPM_PGA_E("Mixout Left PGA", DA7219_MIXOUT_L_CTRL,
1041                            DA7219_MIXOUT_L_AMP_EN_SHIFT, DA7219_NO_INVERT,
1042                            NULL, 0, da7219_mixout_event,
1043                            SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
1044         SND_SOC_DAPM_PGA_E("Mixout Right PGA", DA7219_MIXOUT_R_CTRL,
1045                            DA7219_MIXOUT_R_AMP_EN_SHIFT, DA7219_NO_INVERT,
1046                            NULL, 0, da7219_mixout_event,
1047                            SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
1048         SND_SOC_DAPM_SUPPLY_S("Headphone Left PGA", 1, DA7219_HP_L_CTRL,
1049                               DA7219_HP_L_AMP_EN_SHIFT, DA7219_NO_INVERT,
1050                               da7219_settling_event,
1051                               SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1052         SND_SOC_DAPM_SUPPLY_S("Headphone Right PGA", 1, DA7219_HP_R_CTRL,
1053                               DA7219_HP_R_AMP_EN_SHIFT, DA7219_NO_INVERT,
1054                               da7219_settling_event,
1055                               SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1056 
1057         /* Output Supplies */
1058         SND_SOC_DAPM_SUPPLY_S("Charge Pump", 0, DA7219_CP_CTRL,
1059                               DA7219_CP_EN_SHIFT, DA7219_NO_INVERT,
1060                               da7219_settling_event,
1061                               SND_SOC_DAPM_POST_PMU),
1062 
1063         /* Outputs */
1064         SND_SOC_DAPM_OUTPUT("HPL"),
1065         SND_SOC_DAPM_OUTPUT("HPR"),
1066 
1067         /* Pre/Post Power */
1068         SND_SOC_DAPM_PRE("Pre Power Gain Ramp", da7219_gain_ramp_event),
1069         SND_SOC_DAPM_POST("Post Power Gain Ramp", da7219_gain_ramp_event),
1070 };
1071 
1072 
1073 /*
1074  * DAPM Mux Routes
1075  */
1076 
1077 #define DA7219_OUT_DAI_MUX_ROUTES(name)                 \
1078         {name, "ADC", "Mixer In"},                      \
1079         {name, "Tone Generator", "Tone Generator"},     \
1080         {name, "DAIL", "DAIOUT"},                       \
1081         {name, "DAIR", "DAIOUT"}
1082 
1083 #define DA7219_OUT_DAC_MUX_ROUTES(name)                 \
1084         {name, "ADC", "Mixer In"},                      \
1085         {name, "Tone Generator", "Tone Generator"},             \
1086         {name, "DAIL", "DAIIN"},                        \
1087         {name, "DAIR", "DAIIN"}
1088 
1089 /*
1090  * DAPM Mixer Routes
1091  */
1092 
1093 #define DA7219_DMIX_ST_ROUTES(name)                             \
1094         {name, "Out FilterL Switch", "Mixer Out FilterL"},      \
1095         {name, "Out FilterR Switch", "Mixer Out FilterR"},      \
1096         {name, "Sidetone Switch", "Sidetone Filter"}
1097 
1098 
1099 /*
1100  * DAPM audio route definition
1101  */
1102 
1103 static const struct snd_soc_dapm_route da7219_audio_map[] = {
1104         /* Input paths */
1105         {"MIC", NULL, "Mic Bias"},
1106         {"Mic PGA", NULL, "MIC"},
1107         {"Mixin PGA", NULL, "Mic PGA"},
1108         {"ADC", NULL, "Mixin PGA"},
1109 
1110         {"Mixer In", NULL, "Mixer In Supply"},
1111         {"Mixer In", "Mic Switch", "ADC"},
1112 
1113         {"Sidetone Filter", NULL, "Mixer In"},
1114 
1115         {"Tone Generator", NULL, "TONE"},
1116 
1117         DA7219_OUT_DAI_MUX_ROUTES("Out DAIL Mux"),
1118         DA7219_OUT_DAI_MUX_ROUTES("Out DAIR Mux"),
1119 
1120         {"DAIOUT", NULL, "Out DAIL Mux"},
1121         {"DAIOUT", NULL, "Out DAIR Mux"},
1122         {"DAIOUT", NULL, "DAI"},
1123 
1124         /* Output paths */
1125         {"DAIIN", NULL, "DAI"},
1126 
1127         DA7219_OUT_DAC_MUX_ROUTES("Out DACL Mux"),
1128         DA7219_OUT_DAC_MUX_ROUTES("Out DACR Mux"),
1129 
1130         {"Mixer Out FilterL", "DACL Switch", "Out DACL Mux"},
1131         {"Mixer Out FilterR", "DACR Switch", "Out DACR Mux"},
1132 
1133         DA7219_DMIX_ST_ROUTES("ST Mixer Out FilterL"),
1134         DA7219_DMIX_ST_ROUTES("ST Mixer Out FilterR"),
1135 
1136         {"DACL", NULL, "ST Mixer Out FilterL"},
1137         {"DACR", NULL, "ST Mixer Out FilterR"},
1138 
1139         {"Mixout Left PGA", NULL, "DACL"},
1140         {"Mixout Right PGA", NULL, "DACR"},
1141 
1142         {"HPL", NULL, "Mixout Left PGA"},
1143         {"HPR", NULL, "Mixout Right PGA"},
1144 
1145         {"HPL", NULL, "Headphone Left PGA"},
1146         {"HPR", NULL, "Headphone Right PGA"},
1147 
1148         {"HPL", NULL, "Charge Pump"},
1149         {"HPR", NULL, "Charge Pump"},
1150 };
1151 
1152 
1153 /*
1154  * DAI operations
1155  */
1156 
1157 static int da7219_set_dai_sysclk(struct snd_soc_dai *codec_dai,
1158                                  int clk_id, unsigned int freq, int dir)
1159 {
1160         struct snd_soc_component *component = codec_dai->component;
1161         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
1162         int ret = 0;
1163 
1164         if ((da7219->clk_src == clk_id) && (da7219->mclk_rate == freq))
1165                 return 0;
1166 
1167         if ((freq < 2000000) || (freq > 54000000)) {
1168                 dev_err(codec_dai->dev, "Unsupported MCLK value %d\n",
1169                         freq);
1170                 return -EINVAL;
1171         }
1172 
1173         mutex_lock(&da7219->pll_lock);
1174 
1175         switch (clk_id) {
1176         case DA7219_CLKSRC_MCLK_SQR:
1177                 snd_soc_component_update_bits(component, DA7219_PLL_CTRL,
1178                                     DA7219_PLL_MCLK_SQR_EN_MASK,
1179                                     DA7219_PLL_MCLK_SQR_EN_MASK);
1180                 break;
1181         case DA7219_CLKSRC_MCLK:
1182                 snd_soc_component_update_bits(component, DA7219_PLL_CTRL,
1183                                     DA7219_PLL_MCLK_SQR_EN_MASK, 0);
1184                 break;
1185         default:
1186                 dev_err(codec_dai->dev, "Unknown clock source %d\n", clk_id);
1187                 mutex_unlock(&da7219->pll_lock);
1188                 return -EINVAL;
1189         }
1190 
1191         da7219->clk_src = clk_id;
1192 
1193         if (da7219->mclk) {
1194                 freq = clk_round_rate(da7219->mclk, freq);
1195                 ret = clk_set_rate(da7219->mclk, freq);
1196                 if (ret) {
1197                         dev_err(codec_dai->dev, "Failed to set clock rate %d\n",
1198                                 freq);
1199                         mutex_unlock(&da7219->pll_lock);
1200                         return ret;
1201                 }
1202         }
1203 
1204         da7219->mclk_rate = freq;
1205 
1206         mutex_unlock(&da7219->pll_lock);
1207 
1208         return 0;
1209 }
1210 
1211 int da7219_set_pll(struct snd_soc_component *component, int source, unsigned int fout)
1212 {
1213         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
1214 
1215         u8 pll_ctrl, indiv_bits, indiv;
1216         u8 pll_frac_top, pll_frac_bot, pll_integer;
1217         u32 freq_ref;
1218         u64 frac_div;
1219 
1220         /* Verify 2MHz - 54MHz MCLK provided, and set input divider */
1221         if (da7219->mclk_rate < 2000000) {
1222                 dev_err(component->dev, "PLL input clock %d below valid range\n",
1223                         da7219->mclk_rate);
1224                 return -EINVAL;
1225         } else if (da7219->mclk_rate <= 4500000) {
1226                 indiv_bits = DA7219_PLL_INDIV_2_TO_4_5_MHZ;
1227                 indiv = DA7219_PLL_INDIV_2_TO_4_5_MHZ_VAL;
1228         } else if (da7219->mclk_rate <= 9000000) {
1229                 indiv_bits = DA7219_PLL_INDIV_4_5_TO_9_MHZ;
1230                 indiv = DA7219_PLL_INDIV_4_5_TO_9_MHZ_VAL;
1231         } else if (da7219->mclk_rate <= 18000000) {
1232                 indiv_bits = DA7219_PLL_INDIV_9_TO_18_MHZ;
1233                 indiv = DA7219_PLL_INDIV_9_TO_18_MHZ_VAL;
1234         } else if (da7219->mclk_rate <= 36000000) {
1235                 indiv_bits = DA7219_PLL_INDIV_18_TO_36_MHZ;
1236                 indiv = DA7219_PLL_INDIV_18_TO_36_MHZ_VAL;
1237         } else if (da7219->mclk_rate <= 54000000) {
1238                 indiv_bits = DA7219_PLL_INDIV_36_TO_54_MHZ;
1239                 indiv = DA7219_PLL_INDIV_36_TO_54_MHZ_VAL;
1240         } else {
1241                 dev_err(component->dev, "PLL input clock %d above valid range\n",
1242                         da7219->mclk_rate);
1243                 return -EINVAL;
1244         }
1245         freq_ref = (da7219->mclk_rate / indiv);
1246         pll_ctrl = indiv_bits;
1247 
1248         /* Configure PLL */
1249         switch (source) {
1250         case DA7219_SYSCLK_MCLK:
1251                 pll_ctrl |= DA7219_PLL_MODE_BYPASS;
1252                 snd_soc_component_update_bits(component, DA7219_PLL_CTRL,
1253                                     DA7219_PLL_INDIV_MASK |
1254                                     DA7219_PLL_MODE_MASK, pll_ctrl);
1255                 return 0;
1256         case DA7219_SYSCLK_PLL:
1257                 pll_ctrl |= DA7219_PLL_MODE_NORMAL;
1258                 break;
1259         case DA7219_SYSCLK_PLL_SRM:
1260                 pll_ctrl |= DA7219_PLL_MODE_SRM;
1261                 break;
1262         default:
1263                 dev_err(component->dev, "Invalid PLL config\n");
1264                 return -EINVAL;
1265         }
1266 
1267         /* Calculate dividers for PLL */
1268         pll_integer = fout / freq_ref;
1269         frac_div = (u64)(fout % freq_ref) * 8192ULL;
1270         do_div(frac_div, freq_ref);
1271         pll_frac_top = (frac_div >> DA7219_BYTE_SHIFT) & DA7219_BYTE_MASK;
1272         pll_frac_bot = (frac_div) & DA7219_BYTE_MASK;
1273 
1274         /* Write PLL config & dividers */
1275         snd_soc_component_write(component, DA7219_PLL_FRAC_TOP, pll_frac_top);
1276         snd_soc_component_write(component, DA7219_PLL_FRAC_BOT, pll_frac_bot);
1277         snd_soc_component_write(component, DA7219_PLL_INTEGER, pll_integer);
1278         snd_soc_component_update_bits(component, DA7219_PLL_CTRL,
1279                             DA7219_PLL_INDIV_MASK | DA7219_PLL_MODE_MASK,
1280                             pll_ctrl);
1281 
1282         return 0;
1283 }
1284 
1285 static int da7219_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
1286                               int source, unsigned int fref, unsigned int fout)
1287 {
1288         struct snd_soc_component *component = codec_dai->component;
1289         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
1290         int ret;
1291 
1292         mutex_lock(&da7219->pll_lock);
1293         ret = da7219_set_pll(component, source, fout);
1294         mutex_unlock(&da7219->pll_lock);
1295 
1296         return ret;
1297 }
1298 
1299 static int da7219_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
1300 {
1301         struct snd_soc_component *component = codec_dai->component;
1302         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
1303         u8 dai_clk_mode = 0, dai_ctrl = 0;
1304 
1305         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1306         case SND_SOC_DAIFMT_CBM_CFM:
1307                 da7219->master = true;
1308                 break;
1309         case SND_SOC_DAIFMT_CBS_CFS:
1310                 da7219->master = false;
1311                 break;
1312         default:
1313                 return -EINVAL;
1314         }
1315 
1316         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1317         case SND_SOC_DAIFMT_I2S:
1318         case SND_SOC_DAIFMT_LEFT_J:
1319         case SND_SOC_DAIFMT_RIGHT_J:
1320                 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1321                 case SND_SOC_DAIFMT_NB_NF:
1322                         break;
1323                 case SND_SOC_DAIFMT_NB_IF:
1324                         dai_clk_mode |= DA7219_DAI_WCLK_POL_INV;
1325                         break;
1326                 case SND_SOC_DAIFMT_IB_NF:
1327                         dai_clk_mode |= DA7219_DAI_CLK_POL_INV;
1328                         break;
1329                 case SND_SOC_DAIFMT_IB_IF:
1330                         dai_clk_mode |= DA7219_DAI_WCLK_POL_INV |
1331                                         DA7219_DAI_CLK_POL_INV;
1332                         break;
1333                 default:
1334                         return -EINVAL;
1335                 }
1336                 break;
1337         case SND_SOC_DAIFMT_DSP_B:
1338                 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1339                 case SND_SOC_DAIFMT_NB_NF:
1340                         dai_clk_mode |= DA7219_DAI_CLK_POL_INV;
1341                         break;
1342                 case SND_SOC_DAIFMT_NB_IF:
1343                         dai_clk_mode |= DA7219_DAI_WCLK_POL_INV |
1344                                         DA7219_DAI_CLK_POL_INV;
1345                         break;
1346                 case SND_SOC_DAIFMT_IB_NF:
1347                         break;
1348                 case SND_SOC_DAIFMT_IB_IF:
1349                         dai_clk_mode |= DA7219_DAI_WCLK_POL_INV;
1350                         break;
1351                 default:
1352                         return -EINVAL;
1353                 }
1354                 break;
1355         default:
1356                 return -EINVAL;
1357         }
1358 
1359         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1360         case SND_SOC_DAIFMT_I2S:
1361                 dai_ctrl |= DA7219_DAI_FORMAT_I2S;
1362                 break;
1363         case SND_SOC_DAIFMT_LEFT_J:
1364                 dai_ctrl |= DA7219_DAI_FORMAT_LEFT_J;
1365                 break;
1366         case SND_SOC_DAIFMT_RIGHT_J:
1367                 dai_ctrl |= DA7219_DAI_FORMAT_RIGHT_J;
1368                 break;
1369         case SND_SOC_DAIFMT_DSP_B:
1370                 dai_ctrl |= DA7219_DAI_FORMAT_DSP;
1371                 break;
1372         default:
1373                 return -EINVAL;
1374         }
1375 
1376         snd_soc_component_update_bits(component, DA7219_DAI_CLK_MODE,
1377                             DA7219_DAI_CLK_POL_MASK | DA7219_DAI_WCLK_POL_MASK,
1378                             dai_clk_mode);
1379         snd_soc_component_update_bits(component, DA7219_DAI_CTRL, DA7219_DAI_FORMAT_MASK,
1380                             dai_ctrl);
1381 
1382         return 0;
1383 }
1384 
1385 static int da7219_set_bclks_per_wclk(struct snd_soc_component *component,
1386                                      unsigned long factor)
1387 {
1388         u8 bclks_per_wclk;
1389 
1390         switch (factor) {
1391         case 32:
1392                 bclks_per_wclk = DA7219_DAI_BCLKS_PER_WCLK_32;
1393                 break;
1394         case 64:
1395                 bclks_per_wclk = DA7219_DAI_BCLKS_PER_WCLK_64;
1396                 break;
1397         case 128:
1398                 bclks_per_wclk = DA7219_DAI_BCLKS_PER_WCLK_128;
1399                 break;
1400         case 256:
1401                 bclks_per_wclk = DA7219_DAI_BCLKS_PER_WCLK_256;
1402                 break;
1403         default:
1404                 return -EINVAL;
1405         }
1406 
1407         snd_soc_component_update_bits(component, DA7219_DAI_CLK_MODE,
1408                                       DA7219_DAI_BCLKS_PER_WCLK_MASK,
1409                                       bclks_per_wclk);
1410 
1411         return 0;
1412 }
1413 
1414 static int da7219_set_dai_tdm_slot(struct snd_soc_dai *dai,
1415                                    unsigned int tx_mask, unsigned int rx_mask,
1416                                    int slots, int slot_width)
1417 {
1418         struct snd_soc_component *component = dai->component;
1419         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
1420         struct clk *wclk = da7219->dai_clks[DA7219_DAI_WCLK_IDX];
1421         struct clk *bclk = da7219->dai_clks[DA7219_DAI_BCLK_IDX];
1422         unsigned int ch_mask;
1423         unsigned long sr, bclk_rate;
1424         u8 slot_offset;
1425         u16 offset;
1426         __le16 dai_offset;
1427         u32 frame_size;
1428         int ret;
1429 
1430         /* No channels enabled so disable TDM */
1431         if (!tx_mask) {
1432                 snd_soc_component_update_bits(component, DA7219_DAI_TDM_CTRL,
1433                                     DA7219_DAI_TDM_CH_EN_MASK |
1434                                     DA7219_DAI_TDM_MODE_EN_MASK, 0);
1435                 da7219->tdm_en = false;
1436                 return 0;
1437         }
1438 
1439         /* Check we have valid slots */
1440         slot_offset = ffs(tx_mask) - 1;
1441         ch_mask = (tx_mask >> slot_offset);
1442         if (fls(ch_mask) > DA7219_DAI_TDM_MAX_SLOTS) {
1443                 dev_err(component->dev,
1444                         "Invalid number of slots, max = %d\n",
1445                         DA7219_DAI_TDM_MAX_SLOTS);
1446                 return -EINVAL;
1447         }
1448 
1449         /*
1450          * Ensure we have a valid offset into the frame, based on slot width
1451          * and slot offset of first slot we're interested in.
1452          */
1453         offset = slot_offset * slot_width;
1454         if (offset > DA7219_DAI_OFFSET_MAX) {
1455                 dev_err(component->dev, "Invalid frame offset %d\n", offset);
1456                 return -EINVAL;
1457         }
1458 
1459         /*
1460          * If we're master, calculate & validate frame size based on slot info
1461          * provided as we have a limited set of rates available.
1462          */
1463         if (da7219->master) {
1464                 frame_size = slots * slot_width;
1465 
1466                 if (bclk) {
1467                         sr = clk_get_rate(wclk);
1468                         bclk_rate = sr * frame_size;
1469                         ret = clk_set_rate(bclk, bclk_rate);
1470                         if (ret) {
1471                                 dev_err(component->dev,
1472                                         "Failed to set TDM BCLK rate %lu: %d\n",
1473                                         bclk_rate, ret);
1474                                 return ret;
1475                         }
1476                 } else {
1477                         ret = da7219_set_bclks_per_wclk(component, frame_size);
1478                         if (ret) {
1479                                 dev_err(component->dev,
1480                                         "Failed to set TDM BCLKs per WCLK %d: %d\n",
1481                                         frame_size, ret);
1482                                 return ret;
1483                         }
1484                 }
1485         }
1486 
1487         dai_offset = cpu_to_le16(offset);
1488         regmap_bulk_write(da7219->regmap, DA7219_DAI_OFFSET_LOWER,
1489                           &dai_offset, sizeof(dai_offset));
1490 
1491         snd_soc_component_update_bits(component, DA7219_DAI_TDM_CTRL,
1492                             DA7219_DAI_TDM_CH_EN_MASK |
1493                             DA7219_DAI_TDM_MODE_EN_MASK,
1494                             (ch_mask << DA7219_DAI_TDM_CH_EN_SHIFT) |
1495                             DA7219_DAI_TDM_MODE_EN_MASK);
1496 
1497         da7219->tdm_en = true;
1498 
1499         return 0;
1500 }
1501 
1502 static int da7219_set_sr(struct snd_soc_component *component,
1503                          unsigned long rate)
1504 {
1505         u8 fs;
1506 
1507         switch (rate) {
1508         case 8000:
1509                 fs = DA7219_SR_8000;
1510                 break;
1511         case 11025:
1512                 fs = DA7219_SR_11025;
1513                 break;
1514         case 12000:
1515                 fs = DA7219_SR_12000;
1516                 break;
1517         case 16000:
1518                 fs = DA7219_SR_16000;
1519                 break;
1520         case 22050:
1521                 fs = DA7219_SR_22050;
1522                 break;
1523         case 24000:
1524                 fs = DA7219_SR_24000;
1525                 break;
1526         case 32000:
1527                 fs = DA7219_SR_32000;
1528                 break;
1529         case 44100:
1530                 fs = DA7219_SR_44100;
1531                 break;
1532         case 48000:
1533                 fs = DA7219_SR_48000;
1534                 break;
1535         case 88200:
1536                 fs = DA7219_SR_88200;
1537                 break;
1538         case 96000:
1539                 fs = DA7219_SR_96000;
1540                 break;
1541         default:
1542                 return -EINVAL;
1543         }
1544 
1545         snd_soc_component_write(component, DA7219_SR, fs);
1546 
1547         return 0;
1548 }
1549 
1550 static int da7219_hw_params(struct snd_pcm_substream *substream,
1551                             struct snd_pcm_hw_params *params,
1552                             struct snd_soc_dai *dai)
1553 {
1554         struct snd_soc_component *component = dai->component;
1555         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
1556         struct clk *wclk = da7219->dai_clks[DA7219_DAI_WCLK_IDX];
1557         struct clk *bclk = da7219->dai_clks[DA7219_DAI_BCLK_IDX];
1558         u8 dai_ctrl = 0;
1559         unsigned int channels;
1560         unsigned long sr, bclk_rate;
1561         int word_len = params_width(params);
1562         int frame_size, ret;
1563 
1564         switch (word_len) {
1565         case 16:
1566                 dai_ctrl |= DA7219_DAI_WORD_LENGTH_S16_LE;
1567                 break;
1568         case 20:
1569                 dai_ctrl |= DA7219_DAI_WORD_LENGTH_S20_LE;
1570                 break;
1571         case 24:
1572                 dai_ctrl |= DA7219_DAI_WORD_LENGTH_S24_LE;
1573                 break;
1574         case 32:
1575                 dai_ctrl |= DA7219_DAI_WORD_LENGTH_S32_LE;
1576                 break;
1577         default:
1578                 return -EINVAL;
1579         }
1580 
1581         channels = params_channels(params);
1582         if ((channels < 1) || (channels > DA7219_DAI_CH_NUM_MAX)) {
1583                 dev_err(component->dev,
1584                         "Invalid number of channels, only 1 to %d supported\n",
1585                         DA7219_DAI_CH_NUM_MAX);
1586                 return -EINVAL;
1587         }
1588         dai_ctrl |= channels << DA7219_DAI_CH_NUM_SHIFT;
1589 
1590         sr = params_rate(params);
1591         if (da7219->master && wclk) {
1592                 ret = clk_set_rate(wclk, sr);
1593                 if (ret) {
1594                         dev_err(component->dev,
1595                                 "Failed to set WCLK SR %lu: %d\n", sr, ret);
1596                         return ret;
1597                 }
1598         } else {
1599                 ret = da7219_set_sr(component, sr);
1600                 if (ret) {
1601                         dev_err(component->dev,
1602                                 "Failed to set SR %lu: %d\n", sr, ret);
1603                         return ret;
1604                 }
1605         }
1606 
1607         /*
1608          * If we're master, then we have a limited set of BCLK rates we
1609          * support. For slave mode this isn't the case and the codec can detect
1610          * the BCLK rate automatically.
1611          */
1612         if (da7219->master && !da7219->tdm_en) {
1613                 if ((word_len * DA7219_DAI_CH_NUM_MAX) <= 32)
1614                         frame_size = 32;
1615                 else
1616                         frame_size = 64;
1617 
1618                 if (bclk) {
1619                         bclk_rate = frame_size * sr;
1620                         /*
1621                          * Rounding the rate here avoids failure trying to set a
1622                          * new rate on an already enabled bclk. In that
1623                          * instance this will just set the same rate as is
1624                          * currently in use, and so should continue without
1625                          * problem, as long as the BCLK rate is suitable for the
1626                          * desired frame size.
1627                          */
1628                         bclk_rate = clk_round_rate(bclk, bclk_rate);
1629                         if ((bclk_rate / sr) < frame_size) {
1630                                 dev_err(component->dev,
1631                                         "BCLK rate mismatch against frame size");
1632                                 return -EINVAL;
1633                         }
1634 
1635                         ret = clk_set_rate(bclk, bclk_rate);
1636                         if (ret) {
1637                                 dev_err(component->dev,
1638                                         "Failed to set BCLK rate %lu: %d\n",
1639                                         bclk_rate, ret);
1640                                 return ret;
1641                         }
1642                 } else {
1643                         ret = da7219_set_bclks_per_wclk(component, frame_size);
1644                         if (ret) {
1645                                 dev_err(component->dev,
1646                                         "Failed to set BCLKs per WCLK %d: %d\n",
1647                                         frame_size, ret);
1648                                 return ret;
1649                         }
1650                 }
1651         }
1652 
1653         snd_soc_component_update_bits(component, DA7219_DAI_CTRL,
1654                             DA7219_DAI_WORD_LENGTH_MASK |
1655                             DA7219_DAI_CH_NUM_MASK,
1656                             dai_ctrl);
1657 
1658         return 0;
1659 }
1660 
1661 static const struct snd_soc_dai_ops da7219_dai_ops = {
1662         .hw_params      = da7219_hw_params,
1663         .set_sysclk     = da7219_set_dai_sysclk,
1664         .set_pll        = da7219_set_dai_pll,
1665         .set_fmt        = da7219_set_dai_fmt,
1666         .set_tdm_slot   = da7219_set_dai_tdm_slot,
1667 };
1668 
1669 #define DA7219_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1670                         SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
1671 
1672 #define DA7219_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
1673                       SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
1674                       SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
1675                       SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\
1676                       SNDRV_PCM_RATE_96000)
1677 
1678 static struct snd_soc_dai_driver da7219_dai = {
1679         .name = "da7219-hifi",
1680         .playback = {
1681                 .stream_name = "Playback",
1682                 .channels_min = 1,
1683                 .channels_max = DA7219_DAI_CH_NUM_MAX,
1684                 .rates = DA7219_RATES,
1685                 .formats = DA7219_FORMATS,
1686         },
1687         .capture = {
1688                 .stream_name = "Capture",
1689                 .channels_min = 1,
1690                 .channels_max = DA7219_DAI_CH_NUM_MAX,
1691                 .rates = DA7219_RATES,
1692                 .formats = DA7219_FORMATS,
1693         },
1694         .ops = &da7219_dai_ops,
1695         .symmetric_rate = 1,
1696         .symmetric_channels = 1,
1697         .symmetric_sample_bits = 1,
1698 };
1699 
1700 
1701 /*
1702  * DT/ACPI
1703  */
1704 
1705 #ifdef CONFIG_OF
1706 static const struct of_device_id da7219_of_match[] = {
1707         { .compatible = "dlg,da7219", },
1708         { }
1709 };
1710 MODULE_DEVICE_TABLE(of, da7219_of_match);
1711 #endif
1712 
1713 #ifdef CONFIG_ACPI
1714 static const struct acpi_device_id da7219_acpi_match[] = {
1715         { .id = "DLGS7219", },
1716         { }
1717 };
1718 MODULE_DEVICE_TABLE(acpi, da7219_acpi_match);
1719 #endif
1720 
1721 static enum da7219_micbias_voltage
1722         da7219_fw_micbias_lvl(struct device *dev, u32 val)
1723 {
1724         switch (val) {
1725         case 1600:
1726                 return DA7219_MICBIAS_1_6V;
1727         case 1800:
1728                 return DA7219_MICBIAS_1_8V;
1729         case 2000:
1730                 return DA7219_MICBIAS_2_0V;
1731         case 2200:
1732                 return DA7219_MICBIAS_2_2V;
1733         case 2400:
1734                 return DA7219_MICBIAS_2_4V;
1735         case 2600:
1736                 return DA7219_MICBIAS_2_6V;
1737         default:
1738                 dev_warn(dev, "Invalid micbias level");
1739                 return DA7219_MICBIAS_2_2V;
1740         }
1741 }
1742 
1743 static enum da7219_mic_amp_in_sel
1744         da7219_fw_mic_amp_in_sel(struct device *dev, const char *str)
1745 {
1746         if (!strcmp(str, "diff")) {
1747                 return DA7219_MIC_AMP_IN_SEL_DIFF;
1748         } else if (!strcmp(str, "se_p")) {
1749                 return DA7219_MIC_AMP_IN_SEL_SE_P;
1750         } else if (!strcmp(str, "se_n")) {
1751                 return DA7219_MIC_AMP_IN_SEL_SE_N;
1752         } else {
1753                 dev_warn(dev, "Invalid mic input type selection");
1754                 return DA7219_MIC_AMP_IN_SEL_DIFF;
1755         }
1756 }
1757 
1758 static struct da7219_pdata *da7219_fw_to_pdata(struct device *dev)
1759 {
1760         struct da7219_pdata *pdata;
1761         const char *of_str;
1762         u32 of_val32;
1763 
1764         pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
1765         if (!pdata)
1766                 return NULL;
1767 
1768         pdata->wakeup_source = device_property_read_bool(dev, "wakeup-source");
1769 
1770         pdata->dai_clk_names[DA7219_DAI_WCLK_IDX] = "da7219-dai-wclk";
1771         pdata->dai_clk_names[DA7219_DAI_BCLK_IDX] = "da7219-dai-bclk";
1772         if (device_property_read_string_array(dev, "clock-output-names",
1773                                               pdata->dai_clk_names,
1774                                               DA7219_DAI_NUM_CLKS) < 0)
1775                 dev_warn(dev, "Using default DAI clk names: %s, %s\n",
1776                          pdata->dai_clk_names[DA7219_DAI_WCLK_IDX],
1777                          pdata->dai_clk_names[DA7219_DAI_BCLK_IDX]);
1778 
1779         if (device_property_read_u32(dev, "dlg,micbias-lvl", &of_val32) >= 0)
1780                 pdata->micbias_lvl = da7219_fw_micbias_lvl(dev, of_val32);
1781         else
1782                 pdata->micbias_lvl = DA7219_MICBIAS_2_2V;
1783 
1784         if (!device_property_read_string(dev, "dlg,mic-amp-in-sel", &of_str))
1785                 pdata->mic_amp_in_sel = da7219_fw_mic_amp_in_sel(dev, of_str);
1786         else
1787                 pdata->mic_amp_in_sel = DA7219_MIC_AMP_IN_SEL_DIFF;
1788 
1789         return pdata;
1790 }
1791 
1792 
1793 /*
1794  * Codec driver functions
1795  */
1796 
1797 static int da7219_set_bias_level(struct snd_soc_component *component,
1798                                  enum snd_soc_bias_level level)
1799 {
1800         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
1801         int ret;
1802 
1803         switch (level) {
1804         case SND_SOC_BIAS_ON:
1805                 break;
1806         case SND_SOC_BIAS_PREPARE:
1807                 /* Enable MCLK for transition to ON state */
1808                 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_STANDBY) {
1809                         if (da7219->mclk) {
1810                                 ret = clk_prepare_enable(da7219->mclk);
1811                                 if (ret) {
1812                                         dev_err(component->dev,
1813                                                 "Failed to enable mclk\n");
1814                                         return ret;
1815                                 }
1816                         }
1817                 }
1818 
1819                 break;
1820         case SND_SOC_BIAS_STANDBY:
1821                 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF)
1822                         /* Master bias */
1823                         snd_soc_component_update_bits(component, DA7219_REFERENCES,
1824                                             DA7219_BIAS_EN_MASK,
1825                                             DA7219_BIAS_EN_MASK);
1826 
1827                 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_PREPARE) {
1828                         /* Remove MCLK */
1829                         if (da7219->mclk)
1830                                 clk_disable_unprepare(da7219->mclk);
1831                 }
1832                 break;
1833         case SND_SOC_BIAS_OFF:
1834                 /* Only disable master bias if we're not a wake-up source */
1835                 if (!da7219->wakeup_source)
1836                         snd_soc_component_update_bits(component, DA7219_REFERENCES,
1837                                             DA7219_BIAS_EN_MASK, 0);
1838 
1839                 break;
1840         }
1841 
1842         return 0;
1843 }
1844 
1845 static const char *da7219_supply_names[DA7219_NUM_SUPPLIES] = {
1846         [DA7219_SUPPLY_VDD] = "VDD",
1847         [DA7219_SUPPLY_VDDMIC] = "VDDMIC",
1848         [DA7219_SUPPLY_VDDIO] = "VDDIO",
1849 };
1850 
1851 static int da7219_handle_supplies(struct snd_soc_component *component,
1852                                   u8 *io_voltage_lvl)
1853 {
1854         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
1855         struct regulator *vddio;
1856         int i, ret;
1857 
1858         /* Get required supplies */
1859         for (i = 0; i < DA7219_NUM_SUPPLIES; ++i)
1860                 da7219->supplies[i].supply = da7219_supply_names[i];
1861 
1862         ret = regulator_bulk_get(component->dev, DA7219_NUM_SUPPLIES,
1863                                  da7219->supplies);
1864         if (ret) {
1865                 dev_err(component->dev, "Failed to get supplies");
1866                 return ret;
1867         }
1868 
1869         /* Default to upper range */
1870         *io_voltage_lvl = DA7219_IO_VOLTAGE_LEVEL_2_5V_3_6V;
1871 
1872         /* Determine VDDIO voltage provided */
1873         vddio = da7219->supplies[DA7219_SUPPLY_VDDIO].consumer;
1874         ret = regulator_get_voltage(vddio);
1875         if (ret < 1200000)
1876                 dev_warn(component->dev, "Invalid VDDIO voltage\n");
1877         else if (ret < 2800000)
1878                 *io_voltage_lvl = DA7219_IO_VOLTAGE_LEVEL_1_2V_2_8V;
1879 
1880         /* Enable main supplies */
1881         ret = regulator_bulk_enable(DA7219_NUM_SUPPLIES, da7219->supplies);
1882         if (ret) {
1883                 dev_err(component->dev, "Failed to enable supplies");
1884                 regulator_bulk_free(DA7219_NUM_SUPPLIES, da7219->supplies);
1885                 return ret;
1886         }
1887 
1888         return 0;
1889 }
1890 
1891 #ifdef CONFIG_COMMON_CLK
1892 static int da7219_wclk_prepare(struct clk_hw *hw)
1893 {
1894         struct da7219_priv *da7219 =
1895                 container_of(hw, struct da7219_priv,
1896                              dai_clks_hw[DA7219_DAI_WCLK_IDX]);
1897         struct snd_soc_component *component = da7219->component;
1898 
1899         if (!da7219->master)
1900                 return -EINVAL;
1901 
1902         snd_soc_component_update_bits(component, DA7219_DAI_CLK_MODE,
1903                                       DA7219_DAI_CLK_EN_MASK,
1904                                       DA7219_DAI_CLK_EN_MASK);
1905 
1906         return 0;
1907 }
1908 
1909 static void da7219_wclk_unprepare(struct clk_hw *hw)
1910 {
1911         struct da7219_priv *da7219 =
1912                 container_of(hw, struct da7219_priv,
1913                              dai_clks_hw[DA7219_DAI_WCLK_IDX]);
1914         struct snd_soc_component *component = da7219->component;
1915 
1916         if (!da7219->master)
1917                 return;
1918 
1919         snd_soc_component_update_bits(component, DA7219_DAI_CLK_MODE,
1920                                       DA7219_DAI_CLK_EN_MASK, 0);
1921 }
1922 
1923 static int da7219_wclk_is_prepared(struct clk_hw *hw)
1924 {
1925         struct da7219_priv *da7219 =
1926                 container_of(hw, struct da7219_priv,
1927                              dai_clks_hw[DA7219_DAI_WCLK_IDX]);
1928         struct snd_soc_component *component = da7219->component;
1929         u8 clk_reg;
1930 
1931         if (!da7219->master)
1932                 return -EINVAL;
1933 
1934         clk_reg = snd_soc_component_read(component, DA7219_DAI_CLK_MODE);
1935 
1936         return !!(clk_reg & DA7219_DAI_CLK_EN_MASK);
1937 }
1938 
1939 static unsigned long da7219_wclk_recalc_rate(struct clk_hw *hw,
1940                                              unsigned long parent_rate)
1941 {
1942         struct da7219_priv *da7219 =
1943                 container_of(hw, struct da7219_priv,
1944                              dai_clks_hw[DA7219_DAI_WCLK_IDX]);
1945         struct snd_soc_component *component = da7219->component;
1946         u8 fs = snd_soc_component_read(component, DA7219_SR);
1947 
1948         switch (fs & DA7219_SR_MASK) {
1949         case DA7219_SR_8000:
1950                 return 8000;
1951         case DA7219_SR_11025:
1952                 return 11025;
1953         case DA7219_SR_12000:
1954                 return 12000;
1955         case DA7219_SR_16000:
1956                 return 16000;
1957         case DA7219_SR_22050:
1958                 return 22050;
1959         case DA7219_SR_24000:
1960                 return 24000;
1961         case DA7219_SR_32000:
1962                 return 32000;
1963         case DA7219_SR_44100:
1964                 return 44100;
1965         case DA7219_SR_48000:
1966                 return 48000;
1967         case DA7219_SR_88200:
1968                 return 88200;
1969         case DA7219_SR_96000:
1970                 return 96000;
1971         default:
1972                 return 0;
1973         }
1974 }
1975 
1976 static long da7219_wclk_round_rate(struct clk_hw *hw, unsigned long rate,
1977                                    unsigned long *parent_rate)
1978 {
1979         struct da7219_priv *da7219 =
1980                 container_of(hw, struct da7219_priv,
1981                              dai_clks_hw[DA7219_DAI_WCLK_IDX]);
1982 
1983         if (!da7219->master)
1984                 return -EINVAL;
1985 
1986         if (rate < 11025)
1987                 return 8000;
1988         else if (rate < 12000)
1989                 return 11025;
1990         else if (rate < 16000)
1991                 return 12000;
1992         else if (rate < 22050)
1993                 return 16000;
1994         else if (rate < 24000)
1995                 return 22050;
1996         else if (rate < 32000)
1997                 return 24000;
1998         else if (rate < 44100)
1999                 return 32000;
2000         else if (rate < 48000)
2001                 return 44100;
2002         else if (rate < 88200)
2003                 return 48000;
2004         else if (rate < 96000)
2005                 return 88200;
2006         else
2007                 return 96000;
2008 }
2009 
2010 static int da7219_wclk_set_rate(struct clk_hw *hw, unsigned long rate,
2011                                 unsigned long parent_rate)
2012 {
2013         struct da7219_priv *da7219 =
2014                 container_of(hw, struct da7219_priv,
2015                              dai_clks_hw[DA7219_DAI_WCLK_IDX]);
2016         struct snd_soc_component *component = da7219->component;
2017 
2018         if (!da7219->master)
2019                 return -EINVAL;
2020 
2021         return da7219_set_sr(component, rate);
2022 }
2023 
2024 static unsigned long da7219_bclk_recalc_rate(struct clk_hw *hw,
2025                                              unsigned long parent_rate)
2026 {
2027         struct da7219_priv *da7219 =
2028                 container_of(hw, struct da7219_priv,
2029                              dai_clks_hw[DA7219_DAI_BCLK_IDX]);
2030         struct snd_soc_component *component = da7219->component;
2031         u8 bclks_per_wclk = snd_soc_component_read(component,
2032                                                      DA7219_DAI_CLK_MODE);
2033 
2034         switch (bclks_per_wclk & DA7219_DAI_BCLKS_PER_WCLK_MASK) {
2035         case DA7219_DAI_BCLKS_PER_WCLK_32:
2036                 return parent_rate * 32;
2037         case DA7219_DAI_BCLKS_PER_WCLK_64:
2038                 return parent_rate * 64;
2039         case DA7219_DAI_BCLKS_PER_WCLK_128:
2040                 return parent_rate * 128;
2041         case DA7219_DAI_BCLKS_PER_WCLK_256:
2042                 return parent_rate * 256;
2043         default:
2044                 return 0;
2045         }
2046 }
2047 
2048 static unsigned long da7219_bclk_get_factor(unsigned long rate,
2049                                             unsigned long parent_rate)
2050 {
2051         unsigned long factor;
2052 
2053         factor = rate / parent_rate;
2054         if (factor < 64)
2055                 return 32;
2056         else if (factor < 128)
2057                 return 64;
2058         else if (factor < 256)
2059                 return 128;
2060         else
2061                 return 256;
2062 }
2063 
2064 static long da7219_bclk_round_rate(struct clk_hw *hw, unsigned long rate,
2065                                    unsigned long *parent_rate)
2066 {
2067         struct da7219_priv *da7219 =
2068                 container_of(hw, struct da7219_priv,
2069                              dai_clks_hw[DA7219_DAI_BCLK_IDX]);
2070         unsigned long factor;
2071 
2072         if (!*parent_rate || !da7219->master)
2073                 return -EINVAL;
2074 
2075         /*
2076          * We don't allow changing the parent rate as some BCLK rates can be
2077          * derived from multiple parent WCLK rates (BCLK rates are set as a
2078          * multiplier of WCLK in HW). We just do some rounding down based on the
2079          * parent WCLK rate set and find the appropriate multiplier of BCLK to
2080          * get the rounded down BCLK value.
2081          */
2082         factor = da7219_bclk_get_factor(rate, *parent_rate);
2083 
2084         return *parent_rate * factor;
2085 }
2086 
2087 static int da7219_bclk_set_rate(struct clk_hw *hw, unsigned long rate,
2088                                 unsigned long parent_rate)
2089 {
2090         struct da7219_priv *da7219 =
2091                 container_of(hw, struct da7219_priv,
2092                              dai_clks_hw[DA7219_DAI_BCLK_IDX]);
2093         struct snd_soc_component *component = da7219->component;
2094         unsigned long factor;
2095 
2096         if (!da7219->master)
2097                 return -EINVAL;
2098 
2099         factor = da7219_bclk_get_factor(rate, parent_rate);
2100 
2101         return da7219_set_bclks_per_wclk(component, factor);
2102 }
2103 
2104 static const struct clk_ops da7219_dai_clk_ops[DA7219_DAI_NUM_CLKS] = {
2105         [DA7219_DAI_WCLK_IDX] = {
2106                 .prepare = da7219_wclk_prepare,
2107                 .unprepare = da7219_wclk_unprepare,
2108                 .is_prepared = da7219_wclk_is_prepared,
2109                 .recalc_rate = da7219_wclk_recalc_rate,
2110                 .round_rate = da7219_wclk_round_rate,
2111                 .set_rate = da7219_wclk_set_rate,
2112         },
2113         [DA7219_DAI_BCLK_IDX] = {
2114                 .recalc_rate = da7219_bclk_recalc_rate,
2115                 .round_rate = da7219_bclk_round_rate,
2116                 .set_rate = da7219_bclk_set_rate,
2117         },
2118 };
2119 
2120 static int da7219_register_dai_clks(struct snd_soc_component *component)
2121 {
2122         struct device *dev = component->dev;
2123         struct device_node *np = dev->of_node;
2124         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
2125         struct da7219_pdata *pdata = da7219->pdata;
2126         const char *parent_name;
2127         struct clk_hw_onecell_data *clk_data;
2128         int i, ret;
2129 
2130         /* For DT platforms allocate onecell data for clock registration */
2131         if (np) {
2132                 clk_data = kzalloc(struct_size(clk_data, hws, DA7219_DAI_NUM_CLKS),
2133                                    GFP_KERNEL);
2134                 if (!clk_data)
2135                         return -ENOMEM;
2136 
2137                 clk_data->num = DA7219_DAI_NUM_CLKS;
2138                 da7219->clk_hw_data = clk_data;
2139         }
2140 
2141         for (i = 0; i < DA7219_DAI_NUM_CLKS; ++i) {
2142                 struct clk_init_data init = {};
2143                 struct clk_lookup *dai_clk_lookup;
2144                 struct clk_hw *dai_clk_hw = &da7219->dai_clks_hw[i];
2145 
2146                 switch (i) {
2147                 case DA7219_DAI_WCLK_IDX:
2148                         /*
2149                          * If we can, make MCLK the parent of WCLK to ensure
2150                          * it's enabled as required.
2151                          */
2152                         if (da7219->mclk) {
2153                                 parent_name = __clk_get_name(da7219->mclk);
2154                                 init.parent_names = &parent_name;
2155                                 init.num_parents = 1;
2156                         } else {
2157                                 init.parent_names = NULL;
2158                                 init.num_parents = 0;
2159                         }
2160                         break;
2161                 case DA7219_DAI_BCLK_IDX:
2162                         /* Make WCLK the parent of BCLK */
2163                         parent_name = __clk_get_name(da7219->dai_clks[DA7219_DAI_WCLK_IDX]);
2164                         init.parent_names = &parent_name;
2165                         init.num_parents = 1;
2166                         break;
2167                 default:
2168                         dev_err(dev, "Invalid clock index\n");
2169                         ret = -EINVAL;
2170                         goto err;
2171                 }
2172 
2173                 init.name = pdata->dai_clk_names[i];
2174                 init.ops = &da7219_dai_clk_ops[i];
2175                 init.flags = CLK_GET_RATE_NOCACHE | CLK_SET_RATE_GATE;
2176                 dai_clk_hw->init = &init;
2177 
2178                 ret = clk_hw_register(dev, dai_clk_hw);
2179                 if (ret) {
2180                         dev_warn(dev, "Failed to register %s: %d\n", init.name,
2181                                  ret);
2182                         goto err;
2183                 }
2184                 da7219->dai_clks[i] = dai_clk_hw->clk;
2185 
2186                 /* For DT setup onecell data, otherwise create lookup */
2187                 if (np) {
2188                         da7219->clk_hw_data->hws[i] = dai_clk_hw;
2189                 } else {
2190                         dai_clk_lookup = clkdev_hw_create(dai_clk_hw, init.name,
2191                                                           "%s", dev_name(dev));
2192                         if (!dai_clk_lookup) {
2193                                 ret = -ENOMEM;
2194                                 goto err;
2195                         } else {
2196                                 da7219->dai_clks_lookup[i] = dai_clk_lookup;
2197                         }
2198                 }
2199         }
2200 
2201         /* If we're using DT, then register as provider accordingly */
2202         if (np) {
2203                 ret = of_clk_add_hw_provider(dev->of_node, of_clk_hw_onecell_get,
2204                                              da7219->clk_hw_data);
2205                 if (ret) {
2206                         dev_err(dev, "Failed to register clock provider\n");
2207                         goto err;
2208                 }
2209         }
2210 
2211         return 0;
2212 
2213 err:
2214         do {
2215                 if (da7219->dai_clks_lookup[i])
2216                         clkdev_drop(da7219->dai_clks_lookup[i]);
2217 
2218                 clk_hw_unregister(&da7219->dai_clks_hw[i]);
2219         } while (i-- > 0);
2220 
2221         if (np)
2222                 kfree(da7219->clk_hw_data);
2223 
2224         return ret;
2225 }
2226 
2227 static void da7219_free_dai_clks(struct snd_soc_component *component)
2228 {
2229         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
2230         struct device_node *np = component->dev->of_node;
2231         int i;
2232 
2233         if (np)
2234                 of_clk_del_provider(np);
2235 
2236         for (i = DA7219_DAI_NUM_CLKS - 1; i >= 0; --i) {
2237                 if (da7219->dai_clks_lookup[i])
2238                         clkdev_drop(da7219->dai_clks_lookup[i]);
2239 
2240                 clk_hw_unregister(&da7219->dai_clks_hw[i]);
2241         }
2242 
2243         if (np)
2244                 kfree(da7219->clk_hw_data);
2245 }
2246 #else
2247 static inline int da7219_register_dai_clks(struct snd_soc_component *component)
2248 {
2249         return 0;
2250 }
2251 
2252 static void da7219_free_dai_clks(struct snd_soc_component *component) {}
2253 #endif /* CONFIG_COMMON_CLK */
2254 
2255 static void da7219_handle_pdata(struct snd_soc_component *component)
2256 {
2257         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
2258         struct da7219_pdata *pdata = da7219->pdata;
2259 
2260         if (pdata) {
2261                 u8 micbias_lvl = 0;
2262 
2263                 da7219->wakeup_source = pdata->wakeup_source;
2264 
2265                 /* Mic Bias voltages */
2266                 switch (pdata->micbias_lvl) {
2267                 case DA7219_MICBIAS_1_6V:
2268                 case DA7219_MICBIAS_1_8V:
2269                 case DA7219_MICBIAS_2_0V:
2270                 case DA7219_MICBIAS_2_2V:
2271                 case DA7219_MICBIAS_2_4V:
2272                 case DA7219_MICBIAS_2_6V:
2273                         micbias_lvl |= (pdata->micbias_lvl <<
2274                                         DA7219_MICBIAS1_LEVEL_SHIFT);
2275                         break;
2276                 }
2277 
2278                 snd_soc_component_write(component, DA7219_MICBIAS_CTRL, micbias_lvl);
2279 
2280                 /*
2281                  * Calculate delay required to compensate for DC offset in
2282                  * Mic PGA, based on Mic Bias voltage.
2283                  */
2284                 da7219->mic_pga_delay =  DA7219_MIC_PGA_BASE_DELAY +
2285                                         (pdata->micbias_lvl *
2286                                          DA7219_MIC_PGA_OFFSET_DELAY);
2287 
2288                 /* Mic */
2289                 switch (pdata->mic_amp_in_sel) {
2290                 case DA7219_MIC_AMP_IN_SEL_DIFF:
2291                 case DA7219_MIC_AMP_IN_SEL_SE_P:
2292                 case DA7219_MIC_AMP_IN_SEL_SE_N:
2293                         snd_soc_component_write(component, DA7219_MIC_1_SELECT,
2294                                       pdata->mic_amp_in_sel);
2295                         break;
2296                 }
2297         }
2298 }
2299 
2300 
2301 /*
2302  * Regmap configs
2303  */
2304 
2305 static struct reg_default da7219_reg_defaults[] = {
2306         { DA7219_MIC_1_SELECT, 0x00 },
2307         { DA7219_CIF_TIMEOUT_CTRL, 0x01 },
2308         { DA7219_SR_24_48, 0x00 },
2309         { DA7219_SR, 0x0A },
2310         { DA7219_CIF_I2C_ADDR_CFG, 0x02 },
2311         { DA7219_PLL_CTRL, 0x10 },
2312         { DA7219_PLL_FRAC_TOP, 0x00 },
2313         { DA7219_PLL_FRAC_BOT, 0x00 },
2314         { DA7219_PLL_INTEGER, 0x20 },
2315         { DA7219_DIG_ROUTING_DAI, 0x10 },
2316         { DA7219_DAI_CLK_MODE, 0x01 },
2317         { DA7219_DAI_CTRL, 0x28 },
2318         { DA7219_DAI_TDM_CTRL, 0x40 },
2319         { DA7219_DIG_ROUTING_DAC, 0x32 },
2320         { DA7219_DAI_OFFSET_LOWER, 0x00 },
2321         { DA7219_DAI_OFFSET_UPPER, 0x00 },
2322         { DA7219_REFERENCES, 0x08 },
2323         { DA7219_MIXIN_L_SELECT, 0x00 },
2324         { DA7219_MIXIN_L_GAIN, 0x03 },
2325         { DA7219_ADC_L_GAIN, 0x6F },
2326         { DA7219_ADC_FILTERS1, 0x80 },
2327         { DA7219_MIC_1_GAIN, 0x01 },
2328         { DA7219_SIDETONE_CTRL, 0x40 },
2329         { DA7219_SIDETONE_GAIN, 0x0E },
2330         { DA7219_DROUTING_ST_OUTFILT_1L, 0x01 },
2331         { DA7219_DROUTING_ST_OUTFILT_1R, 0x02 },
2332         { DA7219_DAC_FILTERS5, 0x00 },
2333         { DA7219_DAC_FILTERS2, 0x88 },
2334         { DA7219_DAC_FILTERS3, 0x88 },
2335         { DA7219_DAC_FILTERS4, 0x08 },
2336         { DA7219_DAC_FILTERS1, 0x80 },
2337         { DA7219_DAC_L_GAIN, 0x6F },
2338         { DA7219_DAC_R_GAIN, 0x6F },
2339         { DA7219_CP_CTRL, 0x20 },
2340         { DA7219_HP_L_GAIN, 0x39 },
2341         { DA7219_HP_R_GAIN, 0x39 },
2342         { DA7219_MIXOUT_L_SELECT, 0x00 },
2343         { DA7219_MIXOUT_R_SELECT, 0x00 },
2344         { DA7219_MICBIAS_CTRL, 0x03 },
2345         { DA7219_MIC_1_CTRL, 0x40 },
2346         { DA7219_MIXIN_L_CTRL, 0x40 },
2347         { DA7219_ADC_L_CTRL, 0x40 },
2348         { DA7219_DAC_L_CTRL, 0x40 },
2349         { DA7219_DAC_R_CTRL, 0x40 },
2350         { DA7219_HP_L_CTRL, 0x40 },
2351         { DA7219_HP_R_CTRL, 0x40 },
2352         { DA7219_MIXOUT_L_CTRL, 0x10 },
2353         { DA7219_MIXOUT_R_CTRL, 0x10 },
2354         { DA7219_CHIP_ID1, 0x23 },
2355         { DA7219_CHIP_ID2, 0x93 },
2356         { DA7219_IO_CTRL, 0x00 },
2357         { DA7219_GAIN_RAMP_CTRL, 0x00 },
2358         { DA7219_PC_COUNT, 0x02 },
2359         { DA7219_CP_VOL_THRESHOLD1, 0x0E },
2360         { DA7219_DIG_CTRL, 0x00 },
2361         { DA7219_ALC_CTRL2, 0x00 },
2362         { DA7219_ALC_CTRL3, 0x00 },
2363         { DA7219_ALC_NOISE, 0x3F },
2364         { DA7219_ALC_TARGET_MIN, 0x3F },
2365         { DA7219_ALC_TARGET_MAX, 0x00 },
2366         { DA7219_ALC_GAIN_LIMITS, 0xFF },
2367         { DA7219_ALC_ANA_GAIN_LIMITS, 0x71 },
2368         { DA7219_ALC_ANTICLIP_CTRL, 0x00 },
2369         { DA7219_ALC_ANTICLIP_LEVEL, 0x00 },
2370         { DA7219_DAC_NG_SETUP_TIME, 0x00 },
2371         { DA7219_DAC_NG_OFF_THRESH, 0x00 },
2372         { DA7219_DAC_NG_ON_THRESH, 0x00 },
2373         { DA7219_DAC_NG_CTRL, 0x00 },
2374         { DA7219_TONE_GEN_CFG1, 0x00 },
2375         { DA7219_TONE_GEN_CFG2, 0x00 },
2376         { DA7219_TONE_GEN_CYCLES, 0x00 },
2377         { DA7219_TONE_GEN_FREQ1_L, 0x55 },
2378         { DA7219_TONE_GEN_FREQ1_U, 0x15 },
2379         { DA7219_TONE_GEN_FREQ2_L, 0x00 },
2380         { DA7219_TONE_GEN_FREQ2_U, 0x40 },
2381         { DA7219_TONE_GEN_ON_PER, 0x02 },
2382         { DA7219_TONE_GEN_OFF_PER, 0x01 },
2383         { DA7219_ACCDET_IRQ_MASK_A, 0x00 },
2384         { DA7219_ACCDET_IRQ_MASK_B, 0x00 },
2385         { DA7219_ACCDET_CONFIG_1, 0xD6 },
2386         { DA7219_ACCDET_CONFIG_2, 0x34 },
2387         { DA7219_ACCDET_CONFIG_3, 0x0A },
2388         { DA7219_ACCDET_CONFIG_4, 0x16 },
2389         { DA7219_ACCDET_CONFIG_5, 0x21 },
2390         { DA7219_ACCDET_CONFIG_6, 0x3E },
2391         { DA7219_ACCDET_CONFIG_7, 0x01 },
2392         { DA7219_SYSTEM_ACTIVE, 0x00 },
2393 };
2394 
2395 static bool da7219_volatile_register(struct device *dev, unsigned int reg)
2396 {
2397         switch (reg) {
2398         case DA7219_MIC_1_GAIN_STATUS:
2399         case DA7219_MIXIN_L_GAIN_STATUS:
2400         case DA7219_ADC_L_GAIN_STATUS:
2401         case DA7219_DAC_L_GAIN_STATUS:
2402         case DA7219_DAC_R_GAIN_STATUS:
2403         case DA7219_HP_L_GAIN_STATUS:
2404         case DA7219_HP_R_GAIN_STATUS:
2405         case DA7219_CIF_CTRL:
2406         case DA7219_PLL_SRM_STS:
2407         case DA7219_ALC_CTRL1:
2408         case DA7219_SYSTEM_MODES_INPUT:
2409         case DA7219_SYSTEM_MODES_OUTPUT:
2410         case DA7219_ALC_OFFSET_AUTO_M_L:
2411         case DA7219_ALC_OFFSET_AUTO_U_L:
2412         case DA7219_TONE_GEN_CFG1:
2413         case DA7219_ACCDET_STATUS_A:
2414         case DA7219_ACCDET_STATUS_B:
2415         case DA7219_ACCDET_IRQ_EVENT_A:
2416         case DA7219_ACCDET_IRQ_EVENT_B:
2417         case DA7219_ACCDET_CONFIG_8:
2418         case DA7219_SYSTEM_STATUS:
2419                 return true;
2420         default:
2421                 return false;
2422         }
2423 }
2424 
2425 static const struct regmap_config da7219_regmap_config = {
2426         .reg_bits = 8,
2427         .val_bits = 8,
2428 
2429         .max_register = DA7219_SYSTEM_ACTIVE,
2430         .reg_defaults = da7219_reg_defaults,
2431         .num_reg_defaults = ARRAY_SIZE(da7219_reg_defaults),
2432         .volatile_reg = da7219_volatile_register,
2433         .cache_type = REGCACHE_RBTREE,
2434 };
2435 
2436 static struct reg_sequence da7219_rev_aa_patch[] = {
2437         { DA7219_REFERENCES, 0x08 },
2438 };
2439 
2440 static int da7219_probe(struct snd_soc_component *component)
2441 {
2442         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
2443         unsigned int system_active, system_status, rev;
2444         u8 io_voltage_lvl;
2445         int i, ret;
2446 
2447         da7219->component = component;
2448         mutex_init(&da7219->ctrl_lock);
2449         mutex_init(&da7219->pll_lock);
2450 
2451         /* Regulator configuration */
2452         ret = da7219_handle_supplies(component, &io_voltage_lvl);
2453         if (ret)
2454                 return ret;
2455 
2456         regcache_cache_bypass(da7219->regmap, true);
2457 
2458         /* Disable audio paths if still active from previous start */
2459         regmap_read(da7219->regmap, DA7219_SYSTEM_ACTIVE, &system_active);
2460         if (system_active) {
2461                 regmap_write(da7219->regmap, DA7219_GAIN_RAMP_CTRL,
2462                              DA7219_GAIN_RAMP_RATE_NOMINAL);
2463                 regmap_write(da7219->regmap, DA7219_SYSTEM_MODES_INPUT, 0x00);
2464                 regmap_write(da7219->regmap, DA7219_SYSTEM_MODES_OUTPUT, 0x01);
2465 
2466                 for (i = 0; i < DA7219_SYS_STAT_CHECK_RETRIES; ++i) {
2467                         regmap_read(da7219->regmap, DA7219_SYSTEM_STATUS,
2468                                     &system_status);
2469                         if (!system_status)
2470                                 break;
2471 
2472                         msleep(DA7219_SYS_STAT_CHECK_DELAY);
2473                 }
2474         }
2475 
2476         /* Soft reset component */
2477         regmap_write_bits(da7219->regmap, DA7219_ACCDET_CONFIG_1,
2478                           DA7219_ACCDET_EN_MASK, 0);
2479         regmap_write_bits(da7219->regmap, DA7219_CIF_CTRL,
2480                           DA7219_CIF_REG_SOFT_RESET_MASK,
2481                           DA7219_CIF_REG_SOFT_RESET_MASK);
2482         regmap_write_bits(da7219->regmap, DA7219_SYSTEM_ACTIVE,
2483                           DA7219_SYSTEM_ACTIVE_MASK, 0);
2484         regmap_write_bits(da7219->regmap, DA7219_SYSTEM_ACTIVE,
2485                           DA7219_SYSTEM_ACTIVE_MASK, 1);
2486 
2487         regcache_cache_bypass(da7219->regmap, false);
2488         regmap_reinit_cache(da7219->regmap, &da7219_regmap_config);
2489 
2490         /* Update IO voltage level range based on supply level */
2491         snd_soc_component_write(component, DA7219_IO_CTRL, io_voltage_lvl);
2492 
2493         ret = regmap_read(da7219->regmap, DA7219_CHIP_REVISION, &rev);
2494         if (ret) {
2495                 dev_err(component->dev, "Failed to read chip revision: %d\n", ret);
2496                 goto err_disable_reg;
2497         }
2498 
2499         switch (rev & DA7219_CHIP_MINOR_MASK) {
2500         case 0:
2501                 ret = regmap_register_patch(da7219->regmap, da7219_rev_aa_patch,
2502                                             ARRAY_SIZE(da7219_rev_aa_patch));
2503                 if (ret) {
2504                         dev_err(component->dev, "Failed to register AA patch: %d\n",
2505                                 ret);
2506                         goto err_disable_reg;
2507                 }
2508                 break;
2509         default:
2510                 break;
2511         }
2512 
2513         /* Handle DT/ACPI/Platform data */
2514         da7219_handle_pdata(component);
2515 
2516         /* Check if MCLK provided */
2517         da7219->mclk = clk_get(component->dev, "mclk");
2518         if (IS_ERR(da7219->mclk)) {
2519                 if (PTR_ERR(da7219->mclk) != -ENOENT) {
2520                         ret = PTR_ERR(da7219->mclk);
2521                         goto err_disable_reg;
2522                 } else {
2523                         da7219->mclk = NULL;
2524                 }
2525         }
2526 
2527         /* Register CCF DAI clock control */
2528         ret = da7219_register_dai_clks(component);
2529         if (ret)
2530                 goto err_put_clk;
2531 
2532         /* Default PC counter to free-running */
2533         snd_soc_component_update_bits(component, DA7219_PC_COUNT, DA7219_PC_FREERUN_MASK,
2534                             DA7219_PC_FREERUN_MASK);
2535 
2536         /* Default gain ramping */
2537         snd_soc_component_update_bits(component, DA7219_MIXIN_L_CTRL,
2538                             DA7219_MIXIN_L_AMP_RAMP_EN_MASK,
2539                             DA7219_MIXIN_L_AMP_RAMP_EN_MASK);
2540         snd_soc_component_update_bits(component, DA7219_ADC_L_CTRL, DA7219_ADC_L_RAMP_EN_MASK,
2541                             DA7219_ADC_L_RAMP_EN_MASK);
2542         snd_soc_component_update_bits(component, DA7219_DAC_L_CTRL, DA7219_DAC_L_RAMP_EN_MASK,
2543                             DA7219_DAC_L_RAMP_EN_MASK);
2544         snd_soc_component_update_bits(component, DA7219_DAC_R_CTRL, DA7219_DAC_R_RAMP_EN_MASK,
2545                             DA7219_DAC_R_RAMP_EN_MASK);
2546         snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
2547                             DA7219_HP_L_AMP_RAMP_EN_MASK,
2548                             DA7219_HP_L_AMP_RAMP_EN_MASK);
2549         snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
2550                             DA7219_HP_R_AMP_RAMP_EN_MASK,
2551                             DA7219_HP_R_AMP_RAMP_EN_MASK);
2552 
2553         /* Default minimum gain on HP to avoid pops during DAPM sequencing */
2554         snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
2555                             DA7219_HP_L_AMP_MIN_GAIN_EN_MASK,
2556                             DA7219_HP_L_AMP_MIN_GAIN_EN_MASK);
2557         snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
2558                             DA7219_HP_R_AMP_MIN_GAIN_EN_MASK,
2559                             DA7219_HP_R_AMP_MIN_GAIN_EN_MASK);
2560 
2561         /* Default infinite tone gen, start/stop by Kcontrol */
2562         snd_soc_component_write(component, DA7219_TONE_GEN_CYCLES, DA7219_BEEP_CYCLES_MASK);
2563 
2564         /* Initialise AAD block */
2565         ret = da7219_aad_init(component);
2566         if (ret)
2567                 goto err_free_dai_clks;
2568 
2569         return 0;
2570 
2571 err_free_dai_clks:
2572         da7219_free_dai_clks(component);
2573 
2574 err_put_clk:
2575         clk_put(da7219->mclk);
2576 
2577 err_disable_reg:
2578         regulator_bulk_disable(DA7219_NUM_SUPPLIES, da7219->supplies);
2579         regulator_bulk_free(DA7219_NUM_SUPPLIES, da7219->supplies);
2580 
2581         return ret;
2582 }
2583 
2584 static void da7219_remove(struct snd_soc_component *component)
2585 {
2586         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
2587 
2588         da7219_aad_exit(component);
2589 
2590         da7219_free_dai_clks(component);
2591         clk_put(da7219->mclk);
2592 
2593         /* Supplies */
2594         regulator_bulk_disable(DA7219_NUM_SUPPLIES, da7219->supplies);
2595         regulator_bulk_free(DA7219_NUM_SUPPLIES, da7219->supplies);
2596 }
2597 
2598 #ifdef CONFIG_PM
2599 static int da7219_suspend(struct snd_soc_component *component)
2600 {
2601         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
2602 
2603         /* Suspend AAD if we're not a wake-up source */
2604         if (!da7219->wakeup_source)
2605                 da7219_aad_suspend(component);
2606 
2607         snd_soc_component_force_bias_level(component, SND_SOC_BIAS_OFF);
2608 
2609         return 0;
2610 }
2611 
2612 static int da7219_resume(struct snd_soc_component *component)
2613 {
2614         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
2615 
2616         snd_soc_component_force_bias_level(component, SND_SOC_BIAS_STANDBY);
2617 
2618         /* Resume AAD if previously suspended */
2619         if (!da7219->wakeup_source)
2620                 da7219_aad_resume(component);
2621 
2622         return 0;
2623 }
2624 #else
2625 #define da7219_suspend NULL
2626 #define da7219_resume NULL
2627 #endif
2628 
2629 static const struct snd_soc_component_driver soc_component_dev_da7219 = {
2630         .probe                  = da7219_probe,
2631         .remove                 = da7219_remove,
2632         .suspend                = da7219_suspend,
2633         .resume                 = da7219_resume,
2634         .set_bias_level         = da7219_set_bias_level,
2635         .controls               = da7219_snd_controls,
2636         .num_controls           = ARRAY_SIZE(da7219_snd_controls),
2637         .dapm_widgets           = da7219_dapm_widgets,
2638         .num_dapm_widgets       = ARRAY_SIZE(da7219_dapm_widgets),
2639         .dapm_routes            = da7219_audio_map,
2640         .num_dapm_routes        = ARRAY_SIZE(da7219_audio_map),
2641         .idle_bias_on           = 1,
2642         .use_pmdown_time        = 1,
2643         .endianness             = 1,
2644         .non_legacy_dai_naming  = 1,
2645 };
2646 
2647 
2648 /*
2649  * I2C layer
2650  */
2651 
2652 static int da7219_i2c_probe(struct i2c_client *i2c,
2653                             const struct i2c_device_id *id)
2654 {
2655         struct device *dev = &i2c->dev;
2656         struct da7219_priv *da7219;
2657         int ret;
2658 
2659         da7219 = devm_kzalloc(dev, sizeof(struct da7219_priv),
2660                               GFP_KERNEL);
2661         if (!da7219)
2662                 return -ENOMEM;
2663 
2664         i2c_set_clientdata(i2c, da7219);
2665 
2666         da7219->regmap = devm_regmap_init_i2c(i2c, &da7219_regmap_config);
2667         if (IS_ERR(da7219->regmap)) {
2668                 ret = PTR_ERR(da7219->regmap);
2669                 dev_err(dev, "regmap_init() failed: %d\n", ret);
2670                 return ret;
2671         }
2672 
2673         /* Retrieve DT/ACPI/Platform data */
2674         da7219->pdata = dev_get_platdata(dev);
2675         if (!da7219->pdata)
2676                 da7219->pdata = da7219_fw_to_pdata(dev);
2677 
2678         /* AAD */
2679         ret = da7219_aad_probe(i2c);
2680         if (ret)
2681                 return ret;
2682 
2683         ret = devm_snd_soc_register_component(dev, &soc_component_dev_da7219,
2684                                               &da7219_dai, 1);
2685         if (ret < 0) {
2686                 dev_err(dev, "Failed to register da7219 component: %d\n", ret);
2687         }
2688         return ret;
2689 }
2690 
2691 static int da7219_i2c_remove(struct i2c_client *client)
2692 {
2693         return 0;
2694 }
2695 
2696 static const struct i2c_device_id da7219_i2c_id[] = {
2697         { "da7219", },
2698         { }
2699 };
2700 MODULE_DEVICE_TABLE(i2c, da7219_i2c_id);
2701 
2702 static struct i2c_driver da7219_i2c_driver = {
2703         .driver = {
2704                 .name = "da7219",
2705                 .of_match_table = of_match_ptr(da7219_of_match),
2706                 .acpi_match_table = ACPI_PTR(da7219_acpi_match),
2707         },
2708         .probe          = da7219_i2c_probe,
2709         .remove         = da7219_i2c_remove,
2710         .id_table       = da7219_i2c_id,
2711 };
2712 
2713 module_i2c_driver(da7219_i2c_driver);
2714 
2715 MODULE_DESCRIPTION("ASoC DA7219 Codec Driver");
2716 MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com>");
2717 MODULE_LICENSE("GPL");
2718 

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