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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_read32(component, DA7219_MIC_1_CTRL);
317 
318         /* Save current state of input mixer control register */
319         mixin_ctrl = snd_soc_component_read32(component, DA7219_MIXIN_L_CTRL);
320 
321         /* Save current state of input ADC control register */
322         adc_ctrl = snd_soc_component_read32(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_read32(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_read32(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_read32(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_read32(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_rates = 1,
1696         .symmetric_channels = 1,
1697         .symmetric_samplebits = 1,
1698 };
1699 
1700 
1701 /*
1702  * DT/ACPI
1703  */
1704 
1705 static const struct of_device_id da7219_of_match[] = {
1706         { .compatible = "dlg,da7219", },
1707         { }
1708 };
1709 MODULE_DEVICE_TABLE(of, da7219_of_match);
1710 
1711 static const struct acpi_device_id da7219_acpi_match[] = {
1712         { .id = "DLGS7219", },
1713         { }
1714 };
1715 MODULE_DEVICE_TABLE(acpi, da7219_acpi_match);
1716 
1717 static enum da7219_micbias_voltage
1718         da7219_fw_micbias_lvl(struct device *dev, u32 val)
1719 {
1720         switch (val) {
1721         case 1600:
1722                 return DA7219_MICBIAS_1_6V;
1723         case 1800:
1724                 return DA7219_MICBIAS_1_8V;
1725         case 2000:
1726                 return DA7219_MICBIAS_2_0V;
1727         case 2200:
1728                 return DA7219_MICBIAS_2_2V;
1729         case 2400:
1730                 return DA7219_MICBIAS_2_4V;
1731         case 2600:
1732                 return DA7219_MICBIAS_2_6V;
1733         default:
1734                 dev_warn(dev, "Invalid micbias level");
1735                 return DA7219_MICBIAS_2_2V;
1736         }
1737 }
1738 
1739 static enum da7219_mic_amp_in_sel
1740         da7219_fw_mic_amp_in_sel(struct device *dev, const char *str)
1741 {
1742         if (!strcmp(str, "diff")) {
1743                 return DA7219_MIC_AMP_IN_SEL_DIFF;
1744         } else if (!strcmp(str, "se_p")) {
1745                 return DA7219_MIC_AMP_IN_SEL_SE_P;
1746         } else if (!strcmp(str, "se_n")) {
1747                 return DA7219_MIC_AMP_IN_SEL_SE_N;
1748         } else {
1749                 dev_warn(dev, "Invalid mic input type selection");
1750                 return DA7219_MIC_AMP_IN_SEL_DIFF;
1751         }
1752 }
1753 
1754 static struct da7219_pdata *da7219_fw_to_pdata(struct snd_soc_component *component)
1755 {
1756         struct device *dev = component->dev;
1757         struct da7219_pdata *pdata;
1758         const char *of_str;
1759         u32 of_val32;
1760 
1761         pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
1762         if (!pdata)
1763                 return NULL;
1764 
1765         pdata->wakeup_source = device_property_read_bool(dev, "wakeup-source");
1766 
1767         pdata->dai_clk_names[DA7219_DAI_WCLK_IDX] = "da7219-dai-wclk";
1768         pdata->dai_clk_names[DA7219_DAI_BCLK_IDX] = "da7219-dai-bclk";
1769         if (device_property_read_string_array(dev, "clock-output-names",
1770                                               pdata->dai_clk_names,
1771                                               DA7219_DAI_NUM_CLKS) < 0)
1772                 dev_warn(dev, "Using default DAI clk names: %s, %s\n",
1773                          pdata->dai_clk_names[DA7219_DAI_WCLK_IDX],
1774                          pdata->dai_clk_names[DA7219_DAI_BCLK_IDX]);
1775 
1776         if (device_property_read_u32(dev, "dlg,micbias-lvl", &of_val32) >= 0)
1777                 pdata->micbias_lvl = da7219_fw_micbias_lvl(dev, of_val32);
1778         else
1779                 pdata->micbias_lvl = DA7219_MICBIAS_2_2V;
1780 
1781         if (!device_property_read_string(dev, "dlg,mic-amp-in-sel", &of_str))
1782                 pdata->mic_amp_in_sel = da7219_fw_mic_amp_in_sel(dev, of_str);
1783         else
1784                 pdata->mic_amp_in_sel = DA7219_MIC_AMP_IN_SEL_DIFF;
1785 
1786         return pdata;
1787 }
1788 
1789 
1790 /*
1791  * Codec driver functions
1792  */
1793 
1794 static int da7219_set_bias_level(struct snd_soc_component *component,
1795                                  enum snd_soc_bias_level level)
1796 {
1797         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
1798         int ret;
1799 
1800         switch (level) {
1801         case SND_SOC_BIAS_ON:
1802                 break;
1803         case SND_SOC_BIAS_PREPARE:
1804                 /* Enable MCLK for transition to ON state */
1805                 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_STANDBY) {
1806                         if (da7219->mclk) {
1807                                 ret = clk_prepare_enable(da7219->mclk);
1808                                 if (ret) {
1809                                         dev_err(component->dev,
1810                                                 "Failed to enable mclk\n");
1811                                         return ret;
1812                                 }
1813                         }
1814                 }
1815 
1816                 break;
1817         case SND_SOC_BIAS_STANDBY:
1818                 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF)
1819                         /* Master bias */
1820                         snd_soc_component_update_bits(component, DA7219_REFERENCES,
1821                                             DA7219_BIAS_EN_MASK,
1822                                             DA7219_BIAS_EN_MASK);
1823 
1824                 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_PREPARE) {
1825                         /* Remove MCLK */
1826                         if (da7219->mclk)
1827                                 clk_disable_unprepare(da7219->mclk);
1828                 }
1829                 break;
1830         case SND_SOC_BIAS_OFF:
1831                 /* Only disable master bias if we're not a wake-up source */
1832                 if (!da7219->wakeup_source)
1833                         snd_soc_component_update_bits(component, DA7219_REFERENCES,
1834                                             DA7219_BIAS_EN_MASK, 0);
1835 
1836                 break;
1837         }
1838 
1839         return 0;
1840 }
1841 
1842 static const char *da7219_supply_names[DA7219_NUM_SUPPLIES] = {
1843         [DA7219_SUPPLY_VDD] = "VDD",
1844         [DA7219_SUPPLY_VDDMIC] = "VDDMIC",
1845         [DA7219_SUPPLY_VDDIO] = "VDDIO",
1846 };
1847 
1848 static int da7219_handle_supplies(struct snd_soc_component *component)
1849 {
1850         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
1851         struct regulator *vddio;
1852         u8 io_voltage_lvl = DA7219_IO_VOLTAGE_LEVEL_2_5V_3_6V;
1853         int i, ret;
1854 
1855         /* Get required supplies */
1856         for (i = 0; i < DA7219_NUM_SUPPLIES; ++i)
1857                 da7219->supplies[i].supply = da7219_supply_names[i];
1858 
1859         ret = devm_regulator_bulk_get(component->dev, DA7219_NUM_SUPPLIES,
1860                                       da7219->supplies);
1861         if (ret) {
1862                 dev_err(component->dev, "Failed to get supplies");
1863                 return ret;
1864         }
1865 
1866         /* Determine VDDIO voltage provided */
1867         vddio = da7219->supplies[DA7219_SUPPLY_VDDIO].consumer;
1868         ret = regulator_get_voltage(vddio);
1869         if (ret < 1200000)
1870                 dev_warn(component->dev, "Invalid VDDIO voltage\n");
1871         else if (ret < 2800000)
1872                 io_voltage_lvl = DA7219_IO_VOLTAGE_LEVEL_1_2V_2_8V;
1873 
1874         /* Enable main supplies */
1875         ret = regulator_bulk_enable(DA7219_NUM_SUPPLIES, da7219->supplies);
1876         if (ret) {
1877                 dev_err(component->dev, "Failed to enable supplies");
1878                 return ret;
1879         }
1880 
1881         /* Ensure device in active mode */
1882         snd_soc_component_write(component, DA7219_SYSTEM_ACTIVE, DA7219_SYSTEM_ACTIVE_MASK);
1883 
1884         /* Update IO voltage level range */
1885         snd_soc_component_write(component, DA7219_IO_CTRL, io_voltage_lvl);
1886 
1887         return 0;
1888 }
1889 
1890 #ifdef CONFIG_COMMON_CLK
1891 static int da7219_wclk_prepare(struct clk_hw *hw)
1892 {
1893         struct da7219_priv *da7219 =
1894                 container_of(hw, struct da7219_priv,
1895                              dai_clks_hw[DA7219_DAI_WCLK_IDX]);
1896         struct snd_soc_component *component = da7219->component;
1897 
1898         if (!da7219->master)
1899                 return -EINVAL;
1900 
1901         snd_soc_component_update_bits(component, DA7219_DAI_CLK_MODE,
1902                                       DA7219_DAI_CLK_EN_MASK,
1903                                       DA7219_DAI_CLK_EN_MASK);
1904 
1905         return 0;
1906 }
1907 
1908 static void da7219_wclk_unprepare(struct clk_hw *hw)
1909 {
1910         struct da7219_priv *da7219 =
1911                 container_of(hw, struct da7219_priv,
1912                              dai_clks_hw[DA7219_DAI_WCLK_IDX]);
1913         struct snd_soc_component *component = da7219->component;
1914 
1915         if (!da7219->master)
1916                 return;
1917 
1918         snd_soc_component_update_bits(component, DA7219_DAI_CLK_MODE,
1919                                       DA7219_DAI_CLK_EN_MASK, 0);
1920 }
1921 
1922 static int da7219_wclk_is_prepared(struct clk_hw *hw)
1923 {
1924         struct da7219_priv *da7219 =
1925                 container_of(hw, struct da7219_priv,
1926                              dai_clks_hw[DA7219_DAI_WCLK_IDX]);
1927         struct snd_soc_component *component = da7219->component;
1928         u8 clk_reg;
1929 
1930         if (!da7219->master)
1931                 return -EINVAL;
1932 
1933         clk_reg = snd_soc_component_read32(component, DA7219_DAI_CLK_MODE);
1934 
1935         return !!(clk_reg & DA7219_DAI_CLK_EN_MASK);
1936 }
1937 
1938 static unsigned long da7219_wclk_recalc_rate(struct clk_hw *hw,
1939                                              unsigned long parent_rate)
1940 {
1941         struct da7219_priv *da7219 =
1942                 container_of(hw, struct da7219_priv,
1943                              dai_clks_hw[DA7219_DAI_WCLK_IDX]);
1944         struct snd_soc_component *component = da7219->component;
1945         u8 fs = snd_soc_component_read32(component, DA7219_SR);
1946 
1947         switch (fs & DA7219_SR_MASK) {
1948         case DA7219_SR_8000:
1949                 return 8000;
1950         case DA7219_SR_11025:
1951                 return 11025;
1952         case DA7219_SR_12000:
1953                 return 12000;
1954         case DA7219_SR_16000:
1955                 return 16000;
1956         case DA7219_SR_22050:
1957                 return 22050;
1958         case DA7219_SR_24000:
1959                 return 24000;
1960         case DA7219_SR_32000:
1961                 return 32000;
1962         case DA7219_SR_44100:
1963                 return 44100;
1964         case DA7219_SR_48000:
1965                 return 48000;
1966         case DA7219_SR_88200:
1967                 return 88200;
1968         case DA7219_SR_96000:
1969                 return 96000;
1970         default:
1971                 return 0;
1972         }
1973 }
1974 
1975 static long da7219_wclk_round_rate(struct clk_hw *hw, unsigned long rate,
1976                                    unsigned long *parent_rate)
1977 {
1978         struct da7219_priv *da7219 =
1979                 container_of(hw, struct da7219_priv,
1980                              dai_clks_hw[DA7219_DAI_WCLK_IDX]);
1981 
1982         if (!da7219->master)
1983                 return -EINVAL;
1984 
1985         if (rate < 11025)
1986                 return 8000;
1987         else if (rate < 12000)
1988                 return 11025;
1989         else if (rate < 16000)
1990                 return 12000;
1991         else if (rate < 22050)
1992                 return 16000;
1993         else if (rate < 24000)
1994                 return 22050;
1995         else if (rate < 32000)
1996                 return 24000;
1997         else if (rate < 44100)
1998                 return 32000;
1999         else if (rate < 48000)
2000                 return 44100;
2001         else if (rate < 88200)
2002                 return 48000;
2003         else if (rate < 96000)
2004                 return 88200;
2005         else
2006                 return 96000;
2007 }
2008 
2009 static int da7219_wclk_set_rate(struct clk_hw *hw, unsigned long rate,
2010                                 unsigned long parent_rate)
2011 {
2012         struct da7219_priv *da7219 =
2013                 container_of(hw, struct da7219_priv,
2014                              dai_clks_hw[DA7219_DAI_WCLK_IDX]);
2015         struct snd_soc_component *component = da7219->component;
2016 
2017         if (!da7219->master)
2018                 return -EINVAL;
2019 
2020         return da7219_set_sr(component, rate);
2021 }
2022 
2023 static unsigned long da7219_bclk_recalc_rate(struct clk_hw *hw,
2024                                              unsigned long parent_rate)
2025 {
2026         struct da7219_priv *da7219 =
2027                 container_of(hw, struct da7219_priv,
2028                              dai_clks_hw[DA7219_DAI_BCLK_IDX]);
2029         struct snd_soc_component *component = da7219->component;
2030         u8 bclks_per_wclk = snd_soc_component_read32(component,
2031                                                      DA7219_DAI_CLK_MODE);
2032 
2033         switch (bclks_per_wclk & DA7219_DAI_BCLKS_PER_WCLK_MASK) {
2034         case DA7219_DAI_BCLKS_PER_WCLK_32:
2035                 return parent_rate * 32;
2036         case DA7219_DAI_BCLKS_PER_WCLK_64:
2037                 return parent_rate * 64;
2038         case DA7219_DAI_BCLKS_PER_WCLK_128:
2039                 return parent_rate * 128;
2040         case DA7219_DAI_BCLKS_PER_WCLK_256:
2041                 return parent_rate * 256;
2042         default:
2043                 return 0;
2044         }
2045 }
2046 
2047 static unsigned long da7219_bclk_get_factor(unsigned long rate,
2048                                             unsigned long parent_rate)
2049 {
2050         unsigned long factor;
2051 
2052         factor = rate / parent_rate;
2053         if (factor < 64)
2054                 return 32;
2055         else if (factor < 128)
2056                 return 64;
2057         else if (factor < 256)
2058                 return 128;
2059         else
2060                 return 256;
2061 }
2062 
2063 static long da7219_bclk_round_rate(struct clk_hw *hw, unsigned long rate,
2064                                    unsigned long *parent_rate)
2065 {
2066         struct da7219_priv *da7219 =
2067                 container_of(hw, struct da7219_priv,
2068                              dai_clks_hw[DA7219_DAI_BCLK_IDX]);
2069         unsigned long factor;
2070 
2071         if (!*parent_rate || !da7219->master)
2072                 return -EINVAL;
2073 
2074         /*
2075          * We don't allow changing the parent rate as some BCLK rates can be
2076          * derived from multiple parent WCLK rates (BCLK rates are set as a
2077          * multiplier of WCLK in HW). We just do some rounding down based on the
2078          * parent WCLK rate set and find the appropriate multiplier of BCLK to
2079          * get the rounded down BCLK value.
2080          */
2081         factor = da7219_bclk_get_factor(rate, *parent_rate);
2082 
2083         return *parent_rate * factor;
2084 }
2085 
2086 static int da7219_bclk_set_rate(struct clk_hw *hw, unsigned long rate,
2087                                 unsigned long parent_rate)
2088 {
2089         struct da7219_priv *da7219 =
2090                 container_of(hw, struct da7219_priv,
2091                              dai_clks_hw[DA7219_DAI_BCLK_IDX]);
2092         struct snd_soc_component *component = da7219->component;
2093         unsigned long factor;
2094 
2095         if (!da7219->master)
2096                 return -EINVAL;
2097 
2098         factor = da7219_bclk_get_factor(rate, parent_rate);
2099 
2100         return da7219_set_bclks_per_wclk(component, factor);
2101 }
2102 
2103 static const struct clk_ops da7219_dai_clk_ops[DA7219_DAI_NUM_CLKS] = {
2104         [DA7219_DAI_WCLK_IDX] = {
2105                 .prepare = da7219_wclk_prepare,
2106                 .unprepare = da7219_wclk_unprepare,
2107                 .is_prepared = da7219_wclk_is_prepared,
2108                 .recalc_rate = da7219_wclk_recalc_rate,
2109                 .round_rate = da7219_wclk_round_rate,
2110                 .set_rate = da7219_wclk_set_rate,
2111         },
2112         [DA7219_DAI_BCLK_IDX] = {
2113                 .recalc_rate = da7219_bclk_recalc_rate,
2114                 .round_rate = da7219_bclk_round_rate,
2115                 .set_rate = da7219_bclk_set_rate,
2116         },
2117 };
2118 
2119 static int da7219_register_dai_clks(struct snd_soc_component *component)
2120 {
2121         struct device *dev = component->dev;
2122         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
2123         struct da7219_pdata *pdata = da7219->pdata;
2124         const char *parent_name;
2125         int i, ret;
2126 
2127         for (i = 0; i < DA7219_DAI_NUM_CLKS; ++i) {
2128                 struct clk_init_data init = {};
2129                 struct clk *dai_clk;
2130                 struct clk_lookup *dai_clk_lookup;
2131                 struct clk_hw *dai_clk_hw = &da7219->dai_clks_hw[i];
2132 
2133                 switch (i) {
2134                 case DA7219_DAI_WCLK_IDX:
2135                         /*
2136                          * If we can, make MCLK the parent of WCLK to ensure
2137                          * it's enabled as required.
2138                          */
2139                         if (da7219->mclk) {
2140                                 parent_name = __clk_get_name(da7219->mclk);
2141                                 init.parent_names = &parent_name;
2142                                 init.num_parents = 1;
2143                         } else {
2144                                 init.parent_names = NULL;
2145                                 init.num_parents = 0;
2146                         }
2147                         break;
2148                 case DA7219_DAI_BCLK_IDX:
2149                         /* Make WCLK the parent of BCLK */
2150                         parent_name = __clk_get_name(da7219->dai_clks[DA7219_DAI_WCLK_IDX]);
2151                         init.parent_names = &parent_name;
2152                         init.num_parents = 1;
2153                         break;
2154                 default:
2155                         dev_err(dev, "Invalid clock index\n");
2156                         ret = -EINVAL;
2157                         goto err;
2158                 }
2159 
2160                 init.name = pdata->dai_clk_names[i];
2161                 init.ops = &da7219_dai_clk_ops[i];
2162                 init.flags = CLK_GET_RATE_NOCACHE | CLK_SET_RATE_GATE;
2163                 dai_clk_hw->init = &init;
2164 
2165                 dai_clk = devm_clk_register(dev, dai_clk_hw);
2166                 if (IS_ERR(dai_clk)) {
2167                         dev_warn(dev, "Failed to register %s: %ld\n",
2168                                  init.name, PTR_ERR(dai_clk));
2169                         ret = PTR_ERR(dai_clk);
2170                         goto err;
2171                 }
2172                 da7219->dai_clks[i] = dai_clk;
2173 
2174                 /* If we're using DT, then register as provider accordingly */
2175                 if (dev->of_node) {
2176                         devm_of_clk_add_hw_provider(dev, of_clk_hw_simple_get,
2177                                                     dai_clk_hw);
2178                 } else {
2179                         dai_clk_lookup = clkdev_create(dai_clk, init.name,
2180                                                        "%s", dev_name(dev));
2181                         if (!dai_clk_lookup) {
2182                                 ret = -ENOMEM;
2183                                 goto err;
2184                         } else {
2185                                 da7219->dai_clks_lookup[i] = dai_clk_lookup;
2186                         }
2187                 }
2188         }
2189 
2190         return 0;
2191 
2192 err:
2193         do {
2194                 if (da7219->dai_clks_lookup[i])
2195                         clkdev_drop(da7219->dai_clks_lookup[i]);
2196         } while (i-- > 0);
2197 
2198         return ret;
2199 }
2200 #else
2201 static inline int da7219_register_dai_clks(struct snd_soc_component *component)
2202 {
2203         return 0;
2204 }
2205 #endif /* CONFIG_COMMON_CLK */
2206 
2207 static void da7219_handle_pdata(struct snd_soc_component *component)
2208 {
2209         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
2210         struct da7219_pdata *pdata = da7219->pdata;
2211 
2212         if (pdata) {
2213                 u8 micbias_lvl = 0;
2214 
2215                 da7219->wakeup_source = pdata->wakeup_source;
2216 
2217                 /* Mic Bias voltages */
2218                 switch (pdata->micbias_lvl) {
2219                 case DA7219_MICBIAS_1_6V:
2220                 case DA7219_MICBIAS_1_8V:
2221                 case DA7219_MICBIAS_2_0V:
2222                 case DA7219_MICBIAS_2_2V:
2223                 case DA7219_MICBIAS_2_4V:
2224                 case DA7219_MICBIAS_2_6V:
2225                         micbias_lvl |= (pdata->micbias_lvl <<
2226                                         DA7219_MICBIAS1_LEVEL_SHIFT);
2227                         break;
2228                 }
2229 
2230                 snd_soc_component_write(component, DA7219_MICBIAS_CTRL, micbias_lvl);
2231 
2232                 /*
2233                  * Calculate delay required to compensate for DC offset in
2234                  * Mic PGA, based on Mic Bias voltage.
2235                  */
2236                 da7219->mic_pga_delay =  DA7219_MIC_PGA_BASE_DELAY +
2237                                         (pdata->micbias_lvl *
2238                                          DA7219_MIC_PGA_OFFSET_DELAY);
2239 
2240                 /* Mic */
2241                 switch (pdata->mic_amp_in_sel) {
2242                 case DA7219_MIC_AMP_IN_SEL_DIFF:
2243                 case DA7219_MIC_AMP_IN_SEL_SE_P:
2244                 case DA7219_MIC_AMP_IN_SEL_SE_N:
2245                         snd_soc_component_write(component, DA7219_MIC_1_SELECT,
2246                                       pdata->mic_amp_in_sel);
2247                         break;
2248                 }
2249         }
2250 }
2251 
2252 static struct reg_sequence da7219_rev_aa_patch[] = {
2253         { DA7219_REFERENCES, 0x08 },
2254 };
2255 
2256 static int da7219_probe(struct snd_soc_component *component)
2257 {
2258         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
2259         unsigned int rev;
2260         int ret;
2261 
2262         da7219->component = component;
2263         mutex_init(&da7219->ctrl_lock);
2264         mutex_init(&da7219->pll_lock);
2265 
2266         /* Regulator configuration */
2267         ret = da7219_handle_supplies(component);
2268         if (ret)
2269                 return ret;
2270 
2271         ret = regmap_read(da7219->regmap, DA7219_CHIP_REVISION, &rev);
2272         if (ret) {
2273                 dev_err(component->dev, "Failed to read chip revision: %d\n", ret);
2274                 goto err_disable_reg;
2275         }
2276 
2277         switch (rev & DA7219_CHIP_MINOR_MASK) {
2278         case 0:
2279                 ret = regmap_register_patch(da7219->regmap, da7219_rev_aa_patch,
2280                                             ARRAY_SIZE(da7219_rev_aa_patch));
2281                 if (ret) {
2282                         dev_err(component->dev, "Failed to register AA patch: %d\n",
2283                                 ret);
2284                         goto err_disable_reg;
2285                 }
2286                 break;
2287         default:
2288                 break;
2289         }
2290 
2291         /* Handle DT/ACPI/Platform data */
2292         da7219->pdata = dev_get_platdata(component->dev);
2293         if (!da7219->pdata)
2294                 da7219->pdata = da7219_fw_to_pdata(component);
2295 
2296         da7219_handle_pdata(component);
2297 
2298         /* Check if MCLK provided */
2299         da7219->mclk = devm_clk_get(component->dev, "mclk");
2300         if (IS_ERR(da7219->mclk)) {
2301                 if (PTR_ERR(da7219->mclk) != -ENOENT) {
2302                         ret = PTR_ERR(da7219->mclk);
2303                         goto err_disable_reg;
2304                 } else {
2305                         da7219->mclk = NULL;
2306                 }
2307         }
2308 
2309         /* Register CCF DAI clock control */
2310         ret = da7219_register_dai_clks(component);
2311         if (ret)
2312                 return ret;
2313 
2314         /* Default PC counter to free-running */
2315         snd_soc_component_update_bits(component, DA7219_PC_COUNT, DA7219_PC_FREERUN_MASK,
2316                             DA7219_PC_FREERUN_MASK);
2317 
2318         /* Default gain ramping */
2319         snd_soc_component_update_bits(component, DA7219_MIXIN_L_CTRL,
2320                             DA7219_MIXIN_L_AMP_RAMP_EN_MASK,
2321                             DA7219_MIXIN_L_AMP_RAMP_EN_MASK);
2322         snd_soc_component_update_bits(component, DA7219_ADC_L_CTRL, DA7219_ADC_L_RAMP_EN_MASK,
2323                             DA7219_ADC_L_RAMP_EN_MASK);
2324         snd_soc_component_update_bits(component, DA7219_DAC_L_CTRL, DA7219_DAC_L_RAMP_EN_MASK,
2325                             DA7219_DAC_L_RAMP_EN_MASK);
2326         snd_soc_component_update_bits(component, DA7219_DAC_R_CTRL, DA7219_DAC_R_RAMP_EN_MASK,
2327                             DA7219_DAC_R_RAMP_EN_MASK);
2328         snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
2329                             DA7219_HP_L_AMP_RAMP_EN_MASK,
2330                             DA7219_HP_L_AMP_RAMP_EN_MASK);
2331         snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
2332                             DA7219_HP_R_AMP_RAMP_EN_MASK,
2333                             DA7219_HP_R_AMP_RAMP_EN_MASK);
2334 
2335         /* Default minimum gain on HP to avoid pops during DAPM sequencing */
2336         snd_soc_component_update_bits(component, DA7219_HP_L_CTRL,
2337                             DA7219_HP_L_AMP_MIN_GAIN_EN_MASK,
2338                             DA7219_HP_L_AMP_MIN_GAIN_EN_MASK);
2339         snd_soc_component_update_bits(component, DA7219_HP_R_CTRL,
2340                             DA7219_HP_R_AMP_MIN_GAIN_EN_MASK,
2341                             DA7219_HP_R_AMP_MIN_GAIN_EN_MASK);
2342 
2343         /* Default infinite tone gen, start/stop by Kcontrol */
2344         snd_soc_component_write(component, DA7219_TONE_GEN_CYCLES, DA7219_BEEP_CYCLES_MASK);
2345 
2346         /* Initialise AAD block */
2347         ret = da7219_aad_init(component);
2348         if (ret)
2349                 goto err_disable_reg;
2350 
2351         return 0;
2352 
2353 err_disable_reg:
2354         regulator_bulk_disable(DA7219_NUM_SUPPLIES, da7219->supplies);
2355 
2356         return ret;
2357 }
2358 
2359 static void da7219_remove(struct snd_soc_component *component)
2360 {
2361         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
2362 #ifdef CONFIG_COMMON_CLK
2363         int i;
2364 #endif
2365 
2366         da7219_aad_exit(component);
2367 
2368 #ifdef CONFIG_COMMON_CLK
2369         for (i = DA7219_DAI_NUM_CLKS - 1; i >= 0; --i) {
2370                 if (da7219->dai_clks_lookup[i])
2371                         clkdev_drop(da7219->dai_clks_lookup[i]);
2372         }
2373 #endif
2374 
2375         /* Supplies */
2376         regulator_bulk_disable(DA7219_NUM_SUPPLIES, da7219->supplies);
2377 }
2378 
2379 #ifdef CONFIG_PM
2380 static int da7219_suspend(struct snd_soc_component *component)
2381 {
2382         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
2383 
2384         /* Suspend AAD if we're not a wake-up source */
2385         if (!da7219->wakeup_source)
2386                 da7219_aad_suspend(component);
2387 
2388         snd_soc_component_force_bias_level(component, SND_SOC_BIAS_OFF);
2389 
2390         return 0;
2391 }
2392 
2393 static int da7219_resume(struct snd_soc_component *component)
2394 {
2395         struct da7219_priv *da7219 = snd_soc_component_get_drvdata(component);
2396 
2397         snd_soc_component_force_bias_level(component, SND_SOC_BIAS_STANDBY);
2398 
2399         /* Resume AAD if previously suspended */
2400         if (!da7219->wakeup_source)
2401                 da7219_aad_resume(component);
2402 
2403         return 0;
2404 }
2405 #else
2406 #define da7219_suspend NULL
2407 #define da7219_resume NULL
2408 #endif
2409 
2410 static const struct snd_soc_component_driver soc_component_dev_da7219 = {
2411         .probe                  = da7219_probe,
2412         .remove                 = da7219_remove,
2413         .suspend                = da7219_suspend,
2414         .resume                 = da7219_resume,
2415         .set_bias_level         = da7219_set_bias_level,
2416         .controls               = da7219_snd_controls,
2417         .num_controls           = ARRAY_SIZE(da7219_snd_controls),
2418         .dapm_widgets           = da7219_dapm_widgets,
2419         .num_dapm_widgets       = ARRAY_SIZE(da7219_dapm_widgets),
2420         .dapm_routes            = da7219_audio_map,
2421         .num_dapm_routes        = ARRAY_SIZE(da7219_audio_map),
2422         .idle_bias_on           = 1,
2423         .use_pmdown_time        = 1,
2424         .endianness             = 1,
2425         .non_legacy_dai_naming  = 1,
2426 };
2427 
2428 
2429 /*
2430  * Regmap configs
2431  */
2432 
2433 static struct reg_default da7219_reg_defaults[] = {
2434         { DA7219_MIC_1_SELECT, 0x00 },
2435         { DA7219_CIF_TIMEOUT_CTRL, 0x01 },
2436         { DA7219_SR_24_48, 0x00 },
2437         { DA7219_SR, 0x0A },
2438         { DA7219_CIF_I2C_ADDR_CFG, 0x02 },
2439         { DA7219_PLL_CTRL, 0x10 },
2440         { DA7219_PLL_FRAC_TOP, 0x00 },
2441         { DA7219_PLL_FRAC_BOT, 0x00 },
2442         { DA7219_PLL_INTEGER, 0x20 },
2443         { DA7219_DIG_ROUTING_DAI, 0x10 },
2444         { DA7219_DAI_CLK_MODE, 0x01 },
2445         { DA7219_DAI_CTRL, 0x28 },
2446         { DA7219_DAI_TDM_CTRL, 0x40 },
2447         { DA7219_DIG_ROUTING_DAC, 0x32 },
2448         { DA7219_DAI_OFFSET_LOWER, 0x00 },
2449         { DA7219_DAI_OFFSET_UPPER, 0x00 },
2450         { DA7219_REFERENCES, 0x08 },
2451         { DA7219_MIXIN_L_SELECT, 0x00 },
2452         { DA7219_MIXIN_L_GAIN, 0x03 },
2453         { DA7219_ADC_L_GAIN, 0x6F },
2454         { DA7219_ADC_FILTERS1, 0x80 },
2455         { DA7219_MIC_1_GAIN, 0x01 },
2456         { DA7219_SIDETONE_CTRL, 0x40 },
2457         { DA7219_SIDETONE_GAIN, 0x0E },
2458         { DA7219_DROUTING_ST_OUTFILT_1L, 0x01 },
2459         { DA7219_DROUTING_ST_OUTFILT_1R, 0x02 },
2460         { DA7219_DAC_FILTERS5, 0x00 },
2461         { DA7219_DAC_FILTERS2, 0x88 },
2462         { DA7219_DAC_FILTERS3, 0x88 },
2463         { DA7219_DAC_FILTERS4, 0x08 },
2464         { DA7219_DAC_FILTERS1, 0x80 },
2465         { DA7219_DAC_L_GAIN, 0x6F },
2466         { DA7219_DAC_R_GAIN, 0x6F },
2467         { DA7219_CP_CTRL, 0x20 },
2468         { DA7219_HP_L_GAIN, 0x39 },
2469         { DA7219_HP_R_GAIN, 0x39 },
2470         { DA7219_MIXOUT_L_SELECT, 0x00 },
2471         { DA7219_MIXOUT_R_SELECT, 0x00 },
2472         { DA7219_MICBIAS_CTRL, 0x03 },
2473         { DA7219_MIC_1_CTRL, 0x40 },
2474         { DA7219_MIXIN_L_CTRL, 0x40 },
2475         { DA7219_ADC_L_CTRL, 0x40 },
2476         { DA7219_DAC_L_CTRL, 0x40 },
2477         { DA7219_DAC_R_CTRL, 0x40 },
2478         { DA7219_HP_L_CTRL, 0x40 },
2479         { DA7219_HP_R_CTRL, 0x40 },
2480         { DA7219_MIXOUT_L_CTRL, 0x10 },
2481         { DA7219_MIXOUT_R_CTRL, 0x10 },
2482         { DA7219_CHIP_ID1, 0x23 },
2483         { DA7219_CHIP_ID2, 0x93 },
2484         { DA7219_IO_CTRL, 0x00 },
2485         { DA7219_GAIN_RAMP_CTRL, 0x00 },
2486         { DA7219_PC_COUNT, 0x02 },
2487         { DA7219_CP_VOL_THRESHOLD1, 0x0E },
2488         { DA7219_DIG_CTRL, 0x00 },
2489         { DA7219_ALC_CTRL2, 0x00 },
2490         { DA7219_ALC_CTRL3, 0x00 },
2491         { DA7219_ALC_NOISE, 0x3F },
2492         { DA7219_ALC_TARGET_MIN, 0x3F },
2493         { DA7219_ALC_TARGET_MAX, 0x00 },
2494         { DA7219_ALC_GAIN_LIMITS, 0xFF },
2495         { DA7219_ALC_ANA_GAIN_LIMITS, 0x71 },
2496         { DA7219_ALC_ANTICLIP_CTRL, 0x00 },
2497         { DA7219_ALC_ANTICLIP_LEVEL, 0x00 },
2498         { DA7219_DAC_NG_SETUP_TIME, 0x00 },
2499         { DA7219_DAC_NG_OFF_THRESH, 0x00 },
2500         { DA7219_DAC_NG_ON_THRESH, 0x00 },
2501         { DA7219_DAC_NG_CTRL, 0x00 },
2502         { DA7219_TONE_GEN_CFG1, 0x00 },
2503         { DA7219_TONE_GEN_CFG2, 0x00 },
2504         { DA7219_TONE_GEN_CYCLES, 0x00 },
2505         { DA7219_TONE_GEN_FREQ1_L, 0x55 },
2506         { DA7219_TONE_GEN_FREQ1_U, 0x15 },
2507         { DA7219_TONE_GEN_FREQ2_L, 0x00 },
2508         { DA7219_TONE_GEN_FREQ2_U, 0x40 },
2509         { DA7219_TONE_GEN_ON_PER, 0x02 },
2510         { DA7219_TONE_GEN_OFF_PER, 0x01 },
2511         { DA7219_ACCDET_IRQ_MASK_A, 0x00 },
2512         { DA7219_ACCDET_IRQ_MASK_B, 0x00 },
2513         { DA7219_ACCDET_CONFIG_1, 0xD6 },
2514         { DA7219_ACCDET_CONFIG_2, 0x34 },
2515         { DA7219_ACCDET_CONFIG_3, 0x0A },
2516         { DA7219_ACCDET_CONFIG_4, 0x16 },
2517         { DA7219_ACCDET_CONFIG_5, 0x21 },
2518         { DA7219_ACCDET_CONFIG_6, 0x3E },
2519         { DA7219_ACCDET_CONFIG_7, 0x01 },
2520         { DA7219_SYSTEM_ACTIVE, 0x00 },
2521 };
2522 
2523 static bool da7219_volatile_register(struct device *dev, unsigned int reg)
2524 {
2525         switch (reg) {
2526         case DA7219_MIC_1_GAIN_STATUS:
2527         case DA7219_MIXIN_L_GAIN_STATUS:
2528         case DA7219_ADC_L_GAIN_STATUS:
2529         case DA7219_DAC_L_GAIN_STATUS:
2530         case DA7219_DAC_R_GAIN_STATUS:
2531         case DA7219_HP_L_GAIN_STATUS:
2532         case DA7219_HP_R_GAIN_STATUS:
2533         case DA7219_CIF_CTRL:
2534         case DA7219_PLL_SRM_STS:
2535         case DA7219_ALC_CTRL1:
2536         case DA7219_SYSTEM_MODES_INPUT:
2537         case DA7219_SYSTEM_MODES_OUTPUT:
2538         case DA7219_ALC_OFFSET_AUTO_M_L:
2539         case DA7219_ALC_OFFSET_AUTO_U_L:
2540         case DA7219_TONE_GEN_CFG1:
2541         case DA7219_ACCDET_STATUS_A:
2542         case DA7219_ACCDET_STATUS_B:
2543         case DA7219_ACCDET_IRQ_EVENT_A:
2544         case DA7219_ACCDET_IRQ_EVENT_B:
2545         case DA7219_ACCDET_CONFIG_8:
2546         case DA7219_SYSTEM_STATUS:
2547                 return true;
2548         default:
2549                 return false;
2550         }
2551 }
2552 
2553 static const struct regmap_config da7219_regmap_config = {
2554         .reg_bits = 8,
2555         .val_bits = 8,
2556 
2557         .max_register = DA7219_SYSTEM_ACTIVE,
2558         .reg_defaults = da7219_reg_defaults,
2559         .num_reg_defaults = ARRAY_SIZE(da7219_reg_defaults),
2560         .volatile_reg = da7219_volatile_register,
2561         .cache_type = REGCACHE_RBTREE,
2562 };
2563 
2564 
2565 /*
2566  * I2C layer
2567  */
2568 
2569 static int da7219_i2c_probe(struct i2c_client *i2c,
2570                             const struct i2c_device_id *id)
2571 {
2572         struct da7219_priv *da7219;
2573         unsigned int system_active, system_status;
2574         int i, ret;
2575 
2576         da7219 = devm_kzalloc(&i2c->dev, sizeof(struct da7219_priv),
2577                               GFP_KERNEL);
2578         if (!da7219)
2579                 return -ENOMEM;
2580 
2581         i2c_set_clientdata(i2c, da7219);
2582 
2583         da7219->regmap = devm_regmap_init_i2c(i2c, &da7219_regmap_config);
2584         if (IS_ERR(da7219->regmap)) {
2585                 ret = PTR_ERR(da7219->regmap);
2586                 dev_err(&i2c->dev, "regmap_init() failed: %d\n", ret);
2587                 return ret;
2588         }
2589 
2590         regcache_cache_bypass(da7219->regmap, true);
2591 
2592         /* Disable audio paths if still active from previous start */
2593         regmap_read(da7219->regmap, DA7219_SYSTEM_ACTIVE, &system_active);
2594         if (system_active) {
2595                 regmap_write(da7219->regmap, DA7219_GAIN_RAMP_CTRL,
2596                              DA7219_GAIN_RAMP_RATE_NOMINAL);
2597                 regmap_write(da7219->regmap, DA7219_SYSTEM_MODES_INPUT, 0x00);
2598                 regmap_write(da7219->regmap, DA7219_SYSTEM_MODES_OUTPUT, 0x01);
2599 
2600                 for (i = 0; i < DA7219_SYS_STAT_CHECK_RETRIES; ++i) {
2601                         regmap_read(da7219->regmap, DA7219_SYSTEM_STATUS,
2602                                     &system_status);
2603                         if (!system_status)
2604                                 break;
2605 
2606                         msleep(DA7219_SYS_STAT_CHECK_DELAY);
2607                 }
2608         }
2609 
2610         /* Soft reset component */
2611         regmap_write_bits(da7219->regmap, DA7219_ACCDET_CONFIG_1,
2612                           DA7219_ACCDET_EN_MASK, 0);
2613         regmap_write_bits(da7219->regmap, DA7219_CIF_CTRL,
2614                           DA7219_CIF_REG_SOFT_RESET_MASK,
2615                           DA7219_CIF_REG_SOFT_RESET_MASK);
2616         regmap_write_bits(da7219->regmap, DA7219_SYSTEM_ACTIVE,
2617                           DA7219_SYSTEM_ACTIVE_MASK, 0);
2618 
2619         regcache_cache_bypass(da7219->regmap, false);
2620 
2621         ret = devm_snd_soc_register_component(&i2c->dev,
2622                                      &soc_component_dev_da7219,
2623                                      &da7219_dai, 1);
2624         if (ret < 0) {
2625                 dev_err(&i2c->dev, "Failed to register da7219 component: %d\n",
2626                         ret);
2627         }
2628         return ret;
2629 }
2630 
2631 static int da7219_i2c_remove(struct i2c_client *client)
2632 {
2633         return 0;
2634 }
2635 
2636 static const struct i2c_device_id da7219_i2c_id[] = {
2637         { "da7219", },
2638         { }
2639 };
2640 MODULE_DEVICE_TABLE(i2c, da7219_i2c_id);
2641 
2642 static struct i2c_driver da7219_i2c_driver = {
2643         .driver = {
2644                 .name = "da7219",
2645                 .of_match_table = of_match_ptr(da7219_of_match),
2646                 .acpi_match_table = ACPI_PTR(da7219_acpi_match),
2647         },
2648         .probe          = da7219_i2c_probe,
2649         .remove         = da7219_i2c_remove,
2650         .id_table       = da7219_i2c_id,
2651 };
2652 
2653 module_i2c_driver(da7219_i2c_driver);
2654 
2655 MODULE_DESCRIPTION("ASoC DA7219 Codec Driver");
2656 MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com>");
2657 MODULE_LICENSE("GPL");
2658 

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