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TOMOYO Linux Cross Reference
Linux/sound/soc/codecs/da7213.c

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  1 /*
  2  * DA7213 ALSA SoC Codec Driver
  3  *
  4  * Copyright (c) 2013 Dialog Semiconductor
  5  *
  6  * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
  7  * Based on DA9055 ALSA SoC codec driver.
  8  *
  9  * This program is free software; you can redistribute  it and/or modify it
 10  * under  the terms of  the GNU General  Public License as published by the
 11  * Free Software Foundation;  either version 2 of the  License, or (at your
 12  * option) any later version.
 13  */
 14 
 15 #include <linux/clk.h>
 16 #include <linux/delay.h>
 17 #include <linux/i2c.h>
 18 #include <linux/regmap.h>
 19 #include <linux/slab.h>
 20 #include <linux/module.h>
 21 #include <sound/pcm.h>
 22 #include <sound/pcm_params.h>
 23 #include <sound/soc.h>
 24 #include <sound/initval.h>
 25 #include <sound/tlv.h>
 26 
 27 #include <sound/da7213.h>
 28 #include "da7213.h"
 29 
 30 
 31 /* Gain and Volume */
 32 static const DECLARE_TLV_DB_RANGE(aux_vol_tlv,
 33         /* -54dB */
 34         0x0, 0x11, TLV_DB_SCALE_ITEM(-5400, 0, 0),
 35         /* -52.5dB to 15dB */
 36         0x12, 0x3f, TLV_DB_SCALE_ITEM(-5250, 150, 0)
 37 );
 38 
 39 static const DECLARE_TLV_DB_RANGE(digital_gain_tlv,
 40         0x0, 0x07, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 1),
 41         /* -78dB to 12dB */
 42         0x08, 0x7f, TLV_DB_SCALE_ITEM(-7800, 75, 0)
 43 );
 44 
 45 static const DECLARE_TLV_DB_RANGE(alc_analog_gain_tlv,
 46         0x0, 0x0, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 1),
 47         /* 0dB to 36dB */
 48         0x01, 0x07, TLV_DB_SCALE_ITEM(0, 600, 0)
 49 );
 50 
 51 static const DECLARE_TLV_DB_SCALE(mic_vol_tlv, -600, 600, 0);
 52 static const DECLARE_TLV_DB_SCALE(mixin_gain_tlv, -450, 150, 0);
 53 static const DECLARE_TLV_DB_SCALE(eq_gain_tlv, -1050, 150, 0);
 54 static const DECLARE_TLV_DB_SCALE(hp_vol_tlv, -5700, 100, 0);
 55 static const DECLARE_TLV_DB_SCALE(lineout_vol_tlv, -4800, 100, 0);
 56 static const DECLARE_TLV_DB_SCALE(alc_threshold_tlv, -9450, 150, 0);
 57 static const DECLARE_TLV_DB_SCALE(alc_gain_tlv, 0, 600, 0);
 58 
 59 /* ADC and DAC voice mode (8kHz) high pass cutoff value */
 60 static const char * const da7213_voice_hpf_corner_txt[] = {
 61         "2.5Hz", "25Hz", "50Hz", "100Hz", "150Hz", "200Hz", "300Hz", "400Hz"
 62 };
 63 
 64 static SOC_ENUM_SINGLE_DECL(da7213_dac_voice_hpf_corner,
 65                             DA7213_DAC_FILTERS1,
 66                             DA7213_VOICE_HPF_CORNER_SHIFT,
 67                             da7213_voice_hpf_corner_txt);
 68 
 69 static SOC_ENUM_SINGLE_DECL(da7213_adc_voice_hpf_corner,
 70                             DA7213_ADC_FILTERS1,
 71                             DA7213_VOICE_HPF_CORNER_SHIFT,
 72                             da7213_voice_hpf_corner_txt);
 73 
 74 /* ADC and DAC high pass filter cutoff value */
 75 static const char * const da7213_audio_hpf_corner_txt[] = {
 76         "Fs/24000", "Fs/12000", "Fs/6000", "Fs/3000"
 77 };
 78 
 79 static SOC_ENUM_SINGLE_DECL(da7213_dac_audio_hpf_corner,
 80                             DA7213_DAC_FILTERS1
 81                             , DA7213_AUDIO_HPF_CORNER_SHIFT,
 82                             da7213_audio_hpf_corner_txt);
 83 
 84 static SOC_ENUM_SINGLE_DECL(da7213_adc_audio_hpf_corner,
 85                             DA7213_ADC_FILTERS1,
 86                             DA7213_AUDIO_HPF_CORNER_SHIFT,
 87                             da7213_audio_hpf_corner_txt);
 88 
 89 /* Gain ramping rate value */
 90 static const char * const da7213_gain_ramp_rate_txt[] = {
 91         "nominal rate * 8", "nominal rate * 16", "nominal rate / 16",
 92         "nominal rate / 32"
 93 };
 94 
 95 static SOC_ENUM_SINGLE_DECL(da7213_gain_ramp_rate,
 96                             DA7213_GAIN_RAMP_CTRL,
 97                             DA7213_GAIN_RAMP_RATE_SHIFT,
 98                             da7213_gain_ramp_rate_txt);
 99 
100 /* DAC noise gate setup time value */
101 static const char * const da7213_dac_ng_setup_time_txt[] = {
102         "256 samples", "512 samples", "1024 samples", "2048 samples"
103 };
104 
105 static SOC_ENUM_SINGLE_DECL(da7213_dac_ng_setup_time,
106                             DA7213_DAC_NG_SETUP_TIME,
107                             DA7213_DAC_NG_SETUP_TIME_SHIFT,
108                             da7213_dac_ng_setup_time_txt);
109 
110 /* DAC noise gate rampup rate value */
111 static const char * const da7213_dac_ng_rampup_txt[] = {
112         "0.02 ms/dB", "0.16 ms/dB"
113 };
114 
115 static SOC_ENUM_SINGLE_DECL(da7213_dac_ng_rampup_rate,
116                             DA7213_DAC_NG_SETUP_TIME,
117                             DA7213_DAC_NG_RAMPUP_RATE_SHIFT,
118                             da7213_dac_ng_rampup_txt);
119 
120 /* DAC noise gate rampdown rate value */
121 static const char * const da7213_dac_ng_rampdown_txt[] = {
122         "0.64 ms/dB", "20.48 ms/dB"
123 };
124 
125 static SOC_ENUM_SINGLE_DECL(da7213_dac_ng_rampdown_rate,
126                             DA7213_DAC_NG_SETUP_TIME,
127                             DA7213_DAC_NG_RAMPDN_RATE_SHIFT,
128                             da7213_dac_ng_rampdown_txt);
129 
130 /* DAC soft mute rate value */
131 static const char * const da7213_dac_soft_mute_rate_txt[] = {
132         "1", "2", "4", "8", "16", "32", "64"
133 };
134 
135 static SOC_ENUM_SINGLE_DECL(da7213_dac_soft_mute_rate,
136                             DA7213_DAC_FILTERS5,
137                             DA7213_DAC_SOFTMUTE_RATE_SHIFT,
138                             da7213_dac_soft_mute_rate_txt);
139 
140 /* ALC Attack Rate select */
141 static const char * const da7213_alc_attack_rate_txt[] = {
142         "44/fs", "88/fs", "176/fs", "352/fs", "704/fs", "1408/fs", "2816/fs",
143         "5632/fs", "11264/fs", "22528/fs", "45056/fs", "90112/fs", "180224/fs"
144 };
145 
146 static SOC_ENUM_SINGLE_DECL(da7213_alc_attack_rate,
147                             DA7213_ALC_CTRL2,
148                             DA7213_ALC_ATTACK_SHIFT,
149                             da7213_alc_attack_rate_txt);
150 
151 /* ALC Release Rate select */
152 static const char * const da7213_alc_release_rate_txt[] = {
153         "176/fs", "352/fs", "704/fs", "1408/fs", "2816/fs", "5632/fs",
154         "11264/fs", "22528/fs", "45056/fs", "90112/fs", "180224/fs"
155 };
156 
157 static SOC_ENUM_SINGLE_DECL(da7213_alc_release_rate,
158                             DA7213_ALC_CTRL2,
159                             DA7213_ALC_RELEASE_SHIFT,
160                             da7213_alc_release_rate_txt);
161 
162 /* ALC Hold Time select */
163 static const char * const da7213_alc_hold_time_txt[] = {
164         "62/fs", "124/fs", "248/fs", "496/fs", "992/fs", "1984/fs", "3968/fs",
165         "7936/fs", "15872/fs", "31744/fs", "63488/fs", "126976/fs",
166         "253952/fs", "507904/fs", "1015808/fs", "2031616/fs"
167 };
168 
169 static SOC_ENUM_SINGLE_DECL(da7213_alc_hold_time,
170                             DA7213_ALC_CTRL3,
171                             DA7213_ALC_HOLD_SHIFT,
172                             da7213_alc_hold_time_txt);
173 
174 /* ALC Input Signal Tracking rate select */
175 static const char * const da7213_alc_integ_rate_txt[] = {
176         "1/4", "1/16", "1/256", "1/65536"
177 };
178 
179 static SOC_ENUM_SINGLE_DECL(da7213_alc_integ_attack_rate,
180                             DA7213_ALC_CTRL3,
181                             DA7213_ALC_INTEG_ATTACK_SHIFT,
182                             da7213_alc_integ_rate_txt);
183 
184 static SOC_ENUM_SINGLE_DECL(da7213_alc_integ_release_rate,
185                             DA7213_ALC_CTRL3,
186                             DA7213_ALC_INTEG_RELEASE_SHIFT,
187                             da7213_alc_integ_rate_txt);
188 
189 
190 /*
191  * Control Functions
192  */
193 
194 static int da7213_get_alc_data(struct snd_soc_codec *codec, u8 reg_val)
195 {
196         int mid_data, top_data;
197         int sum = 0;
198         u8 iteration;
199 
200         for (iteration = 0; iteration < DA7213_ALC_AVG_ITERATIONS;
201              iteration++) {
202                 /* Select the left or right channel and capture data */
203                 snd_soc_write(codec, DA7213_ALC_CIC_OP_LVL_CTRL, reg_val);
204 
205                 /* Select middle 8 bits for read back from data register */
206                 snd_soc_write(codec, DA7213_ALC_CIC_OP_LVL_CTRL,
207                               reg_val | DA7213_ALC_DATA_MIDDLE);
208                 mid_data = snd_soc_read(codec, DA7213_ALC_CIC_OP_LVL_DATA);
209 
210                 /* Select top 8 bits for read back from data register */
211                 snd_soc_write(codec, DA7213_ALC_CIC_OP_LVL_CTRL,
212                               reg_val | DA7213_ALC_DATA_TOP);
213                 top_data = snd_soc_read(codec, DA7213_ALC_CIC_OP_LVL_DATA);
214 
215                 sum += ((mid_data << 8) | (top_data << 16));
216         }
217 
218         return sum / DA7213_ALC_AVG_ITERATIONS;
219 }
220 
221 static void da7213_alc_calib_man(struct snd_soc_codec *codec)
222 {
223         u8 reg_val;
224         int avg_left_data, avg_right_data, offset_l, offset_r;
225 
226         /* Calculate average for Left and Right data */
227         /* Left Data */
228         avg_left_data = da7213_get_alc_data(codec,
229                         DA7213_ALC_CIC_OP_CHANNEL_LEFT);
230         /* Right Data */
231         avg_right_data = da7213_get_alc_data(codec,
232                          DA7213_ALC_CIC_OP_CHANNEL_RIGHT);
233 
234         /* Calculate DC offset */
235         offset_l = -avg_left_data;
236         offset_r = -avg_right_data;
237 
238         reg_val = (offset_l & DA7213_ALC_OFFSET_15_8) >> 8;
239         snd_soc_write(codec, DA7213_ALC_OFFSET_MAN_M_L, reg_val);
240         reg_val = (offset_l & DA7213_ALC_OFFSET_19_16) >> 16;
241         snd_soc_write(codec, DA7213_ALC_OFFSET_MAN_U_L, reg_val);
242 
243         reg_val = (offset_r & DA7213_ALC_OFFSET_15_8) >> 8;
244         snd_soc_write(codec, DA7213_ALC_OFFSET_MAN_M_R, reg_val);
245         reg_val = (offset_r & DA7213_ALC_OFFSET_19_16) >> 16;
246         snd_soc_write(codec, DA7213_ALC_OFFSET_MAN_U_R, reg_val);
247 
248         /* Enable analog/digital gain mode & offset cancellation */
249         snd_soc_update_bits(codec, DA7213_ALC_CTRL1,
250                             DA7213_ALC_OFFSET_EN | DA7213_ALC_SYNC_MODE,
251                             DA7213_ALC_OFFSET_EN | DA7213_ALC_SYNC_MODE);
252 }
253 
254 static void da7213_alc_calib_auto(struct snd_soc_codec *codec)
255 {
256         u8 alc_ctrl1;
257 
258         /* Begin auto calibration and wait for completion */
259         snd_soc_update_bits(codec, DA7213_ALC_CTRL1, DA7213_ALC_AUTO_CALIB_EN,
260                             DA7213_ALC_AUTO_CALIB_EN);
261         do {
262                 alc_ctrl1 = snd_soc_read(codec, DA7213_ALC_CTRL1);
263         } while (alc_ctrl1 & DA7213_ALC_AUTO_CALIB_EN);
264 
265         /* If auto calibration fails, fall back to digital gain only mode */
266         if (alc_ctrl1 & DA7213_ALC_CALIB_OVERFLOW) {
267                 dev_warn(codec->dev,
268                          "ALC auto calibration failed with overflow\n");
269                 snd_soc_update_bits(codec, DA7213_ALC_CTRL1,
270                                     DA7213_ALC_OFFSET_EN | DA7213_ALC_SYNC_MODE,
271                                     0);
272         } else {
273                 /* Enable analog/digital gain mode & offset cancellation */
274                 snd_soc_update_bits(codec, DA7213_ALC_CTRL1,
275                                     DA7213_ALC_OFFSET_EN | DA7213_ALC_SYNC_MODE,
276                                     DA7213_ALC_OFFSET_EN | DA7213_ALC_SYNC_MODE);
277         }
278 
279 }
280 
281 static void da7213_alc_calib(struct snd_soc_codec *codec)
282 {
283         struct da7213_priv *da7213 = snd_soc_codec_get_drvdata(codec);
284         u8 adc_l_ctrl, adc_r_ctrl;
285         u8 mixin_l_sel, mixin_r_sel;
286         u8 mic_1_ctrl, mic_2_ctrl;
287 
288         /* Save current values from ADC control registers */
289         adc_l_ctrl = snd_soc_read(codec, DA7213_ADC_L_CTRL);
290         adc_r_ctrl = snd_soc_read(codec, DA7213_ADC_R_CTRL);
291 
292         /* Save current values from MIXIN_L/R_SELECT registers */
293         mixin_l_sel = snd_soc_read(codec, DA7213_MIXIN_L_SELECT);
294         mixin_r_sel = snd_soc_read(codec, DA7213_MIXIN_R_SELECT);
295 
296         /* Save current values from MIC control registers */
297         mic_1_ctrl = snd_soc_read(codec, DA7213_MIC_1_CTRL);
298         mic_2_ctrl = snd_soc_read(codec, DA7213_MIC_2_CTRL);
299 
300         /* Enable ADC Left and Right */
301         snd_soc_update_bits(codec, DA7213_ADC_L_CTRL, DA7213_ADC_EN,
302                             DA7213_ADC_EN);
303         snd_soc_update_bits(codec, DA7213_ADC_R_CTRL, DA7213_ADC_EN,
304                             DA7213_ADC_EN);
305 
306         /* Enable MIC paths */
307         snd_soc_update_bits(codec, DA7213_MIXIN_L_SELECT,
308                             DA7213_MIXIN_L_MIX_SELECT_MIC_1 |
309                             DA7213_MIXIN_L_MIX_SELECT_MIC_2,
310                             DA7213_MIXIN_L_MIX_SELECT_MIC_1 |
311                             DA7213_MIXIN_L_MIX_SELECT_MIC_2);
312         snd_soc_update_bits(codec, DA7213_MIXIN_R_SELECT,
313                             DA7213_MIXIN_R_MIX_SELECT_MIC_2 |
314                             DA7213_MIXIN_R_MIX_SELECT_MIC_1,
315                             DA7213_MIXIN_R_MIX_SELECT_MIC_2 |
316                             DA7213_MIXIN_R_MIX_SELECT_MIC_1);
317 
318         /* Mute MIC PGAs */
319         snd_soc_update_bits(codec, DA7213_MIC_1_CTRL, DA7213_MUTE_EN,
320                             DA7213_MUTE_EN);
321         snd_soc_update_bits(codec, DA7213_MIC_2_CTRL, DA7213_MUTE_EN,
322                             DA7213_MUTE_EN);
323 
324         /* Perform calibration */
325         if (da7213->alc_calib_auto)
326                 da7213_alc_calib_auto(codec);
327         else
328                 da7213_alc_calib_man(codec);
329 
330         /* Restore MIXIN_L/R_SELECT registers to their original states */
331         snd_soc_write(codec, DA7213_MIXIN_L_SELECT, mixin_l_sel);
332         snd_soc_write(codec, DA7213_MIXIN_R_SELECT, mixin_r_sel);
333 
334         /* Restore ADC control registers to their original states */
335         snd_soc_write(codec, DA7213_ADC_L_CTRL, adc_l_ctrl);
336         snd_soc_write(codec, DA7213_ADC_R_CTRL, adc_r_ctrl);
337 
338         /* Restore original values of MIC control registers */
339         snd_soc_write(codec, DA7213_MIC_1_CTRL, mic_1_ctrl);
340         snd_soc_write(codec, DA7213_MIC_2_CTRL, mic_2_ctrl);
341 }
342 
343 static int da7213_put_mixin_gain(struct snd_kcontrol *kcontrol,
344                                 struct snd_ctl_elem_value *ucontrol)
345 {
346         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
347         struct da7213_priv *da7213 = snd_soc_codec_get_drvdata(codec);
348         int ret;
349 
350         ret = snd_soc_put_volsw_2r(kcontrol, ucontrol);
351 
352         /* If ALC in operation, make sure calibrated offsets are updated */
353         if ((!ret) && (da7213->alc_en))
354                 da7213_alc_calib(codec);
355 
356         return ret;
357 }
358 
359 static int da7213_put_alc_sw(struct snd_kcontrol *kcontrol,
360                             struct snd_ctl_elem_value *ucontrol)
361 {
362         struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
363         struct da7213_priv *da7213 = snd_soc_codec_get_drvdata(codec);
364 
365         /* Force ALC offset calibration if enabling ALC */
366         if (ucontrol->value.integer.value[0] ||
367             ucontrol->value.integer.value[1]) {
368                 if (!da7213->alc_en) {
369                         da7213_alc_calib(codec);
370                         da7213->alc_en = true;
371                 }
372         } else {
373                 da7213->alc_en = false;
374         }
375 
376         return snd_soc_put_volsw(kcontrol, ucontrol);
377 }
378 
379 
380 /*
381  * KControls
382  */
383 
384 static const struct snd_kcontrol_new da7213_snd_controls[] = {
385 
386         /* Volume controls */
387         SOC_SINGLE_TLV("Mic 1 Volume", DA7213_MIC_1_GAIN,
388                        DA7213_MIC_AMP_GAIN_SHIFT, DA7213_MIC_AMP_GAIN_MAX,
389                        DA7213_NO_INVERT, mic_vol_tlv),
390         SOC_SINGLE_TLV("Mic 2 Volume", DA7213_MIC_2_GAIN,
391                        DA7213_MIC_AMP_GAIN_SHIFT, DA7213_MIC_AMP_GAIN_MAX,
392                        DA7213_NO_INVERT, mic_vol_tlv),
393         SOC_DOUBLE_R_TLV("Aux Volume", DA7213_AUX_L_GAIN, DA7213_AUX_R_GAIN,
394                          DA7213_AUX_AMP_GAIN_SHIFT, DA7213_AUX_AMP_GAIN_MAX,
395                          DA7213_NO_INVERT, aux_vol_tlv),
396         SOC_DOUBLE_R_EXT_TLV("Mixin PGA Volume", DA7213_MIXIN_L_GAIN,
397                              DA7213_MIXIN_R_GAIN, DA7213_MIXIN_AMP_GAIN_SHIFT,
398                              DA7213_MIXIN_AMP_GAIN_MAX, DA7213_NO_INVERT,
399                              snd_soc_get_volsw_2r, da7213_put_mixin_gain,
400                              mixin_gain_tlv),
401         SOC_DOUBLE_R_TLV("ADC Volume", DA7213_ADC_L_GAIN, DA7213_ADC_R_GAIN,
402                          DA7213_ADC_AMP_GAIN_SHIFT, DA7213_ADC_AMP_GAIN_MAX,
403                          DA7213_NO_INVERT, digital_gain_tlv),
404         SOC_DOUBLE_R_TLV("DAC Volume", DA7213_DAC_L_GAIN, DA7213_DAC_R_GAIN,
405                          DA7213_DAC_AMP_GAIN_SHIFT, DA7213_DAC_AMP_GAIN_MAX,
406                          DA7213_NO_INVERT, digital_gain_tlv),
407         SOC_DOUBLE_R_TLV("Headphone Volume", DA7213_HP_L_GAIN, DA7213_HP_R_GAIN,
408                          DA7213_HP_AMP_GAIN_SHIFT, DA7213_HP_AMP_GAIN_MAX,
409                          DA7213_NO_INVERT, hp_vol_tlv),
410         SOC_SINGLE_TLV("Lineout Volume", DA7213_LINE_GAIN,
411                        DA7213_LINE_AMP_GAIN_SHIFT, DA7213_LINE_AMP_GAIN_MAX,
412                        DA7213_NO_INVERT, lineout_vol_tlv),
413 
414         /* DAC Equalizer controls */
415         SOC_SINGLE("DAC EQ Switch", DA7213_DAC_FILTERS4, DA7213_DAC_EQ_EN_SHIFT,
416                    DA7213_DAC_EQ_EN_MAX, DA7213_NO_INVERT),
417         SOC_SINGLE_TLV("DAC EQ1 Volume", DA7213_DAC_FILTERS2,
418                        DA7213_DAC_EQ_BAND1_SHIFT, DA7213_DAC_EQ_BAND_MAX,
419                        DA7213_NO_INVERT, eq_gain_tlv),
420         SOC_SINGLE_TLV("DAC EQ2 Volume", DA7213_DAC_FILTERS2,
421                        DA7213_DAC_EQ_BAND2_SHIFT, DA7213_DAC_EQ_BAND_MAX,
422                        DA7213_NO_INVERT, eq_gain_tlv),
423         SOC_SINGLE_TLV("DAC EQ3 Volume", DA7213_DAC_FILTERS3,
424                        DA7213_DAC_EQ_BAND3_SHIFT, DA7213_DAC_EQ_BAND_MAX,
425                        DA7213_NO_INVERT, eq_gain_tlv),
426         SOC_SINGLE_TLV("DAC EQ4 Volume", DA7213_DAC_FILTERS3,
427                        DA7213_DAC_EQ_BAND4_SHIFT, DA7213_DAC_EQ_BAND_MAX,
428                        DA7213_NO_INVERT, eq_gain_tlv),
429         SOC_SINGLE_TLV("DAC EQ5 Volume", DA7213_DAC_FILTERS4,
430                        DA7213_DAC_EQ_BAND5_SHIFT, DA7213_DAC_EQ_BAND_MAX,
431                        DA7213_NO_INVERT, eq_gain_tlv),
432 
433         /* High Pass Filter and Voice Mode controls */
434         SOC_SINGLE("ADC HPF Switch", DA7213_ADC_FILTERS1, DA7213_HPF_EN_SHIFT,
435                    DA7213_HPF_EN_MAX, DA7213_NO_INVERT),
436         SOC_ENUM("ADC HPF Cutoff", da7213_adc_audio_hpf_corner),
437         SOC_SINGLE("ADC Voice Mode Switch", DA7213_ADC_FILTERS1,
438                    DA7213_VOICE_EN_SHIFT, DA7213_VOICE_EN_MAX,
439                    DA7213_NO_INVERT),
440         SOC_ENUM("ADC Voice Cutoff", da7213_adc_voice_hpf_corner),
441 
442         SOC_SINGLE("DAC HPF Switch", DA7213_DAC_FILTERS1, DA7213_HPF_EN_SHIFT,
443                    DA7213_HPF_EN_MAX, DA7213_NO_INVERT),
444         SOC_ENUM("DAC HPF Cutoff", da7213_dac_audio_hpf_corner),
445         SOC_SINGLE("DAC Voice Mode Switch", DA7213_DAC_FILTERS1,
446                    DA7213_VOICE_EN_SHIFT, DA7213_VOICE_EN_MAX,
447                    DA7213_NO_INVERT),
448         SOC_ENUM("DAC Voice Cutoff", da7213_dac_voice_hpf_corner),
449 
450         /* Mute controls */
451         SOC_SINGLE("Mic 1 Switch", DA7213_MIC_1_CTRL, DA7213_MUTE_EN_SHIFT,
452                    DA7213_MUTE_EN_MAX, DA7213_INVERT),
453         SOC_SINGLE("Mic 2 Switch", DA7213_MIC_2_CTRL, DA7213_MUTE_EN_SHIFT,
454                    DA7213_MUTE_EN_MAX, DA7213_INVERT),
455         SOC_DOUBLE_R("Aux Switch", DA7213_AUX_L_CTRL, DA7213_AUX_R_CTRL,
456                      DA7213_MUTE_EN_SHIFT, DA7213_MUTE_EN_MAX, DA7213_INVERT),
457         SOC_DOUBLE_R("Mixin PGA Switch", DA7213_MIXIN_L_CTRL,
458                      DA7213_MIXIN_R_CTRL, DA7213_MUTE_EN_SHIFT,
459                      DA7213_MUTE_EN_MAX, DA7213_INVERT),
460         SOC_DOUBLE_R("ADC Switch", DA7213_ADC_L_CTRL, DA7213_ADC_R_CTRL,
461                      DA7213_MUTE_EN_SHIFT, DA7213_MUTE_EN_MAX, DA7213_INVERT),
462         SOC_DOUBLE_R("Headphone Switch", DA7213_HP_L_CTRL, DA7213_HP_R_CTRL,
463                      DA7213_MUTE_EN_SHIFT, DA7213_MUTE_EN_MAX, DA7213_INVERT),
464         SOC_SINGLE("Lineout Switch", DA7213_LINE_CTRL, DA7213_MUTE_EN_SHIFT,
465                    DA7213_MUTE_EN_MAX, DA7213_INVERT),
466         SOC_SINGLE("DAC Soft Mute Switch", DA7213_DAC_FILTERS5,
467                    DA7213_DAC_SOFTMUTE_EN_SHIFT, DA7213_DAC_SOFTMUTE_EN_MAX,
468                    DA7213_NO_INVERT),
469         SOC_ENUM("DAC Soft Mute Rate", da7213_dac_soft_mute_rate),
470 
471         /* Zero Cross controls */
472         SOC_DOUBLE_R("Aux ZC Switch", DA7213_AUX_L_CTRL, DA7213_AUX_R_CTRL,
473                      DA7213_ZC_EN_SHIFT, DA7213_ZC_EN_MAX, DA7213_NO_INVERT),
474         SOC_DOUBLE_R("Mixin PGA ZC Switch", DA7213_MIXIN_L_CTRL,
475                      DA7213_MIXIN_R_CTRL, DA7213_ZC_EN_SHIFT, DA7213_ZC_EN_MAX,
476                      DA7213_NO_INVERT),
477         SOC_DOUBLE_R("Headphone ZC Switch", DA7213_HP_L_CTRL, DA7213_HP_R_CTRL,
478                      DA7213_ZC_EN_SHIFT, DA7213_ZC_EN_MAX, DA7213_NO_INVERT),
479 
480         /* Gain Ramping controls */
481         SOC_DOUBLE_R("Aux Gain Ramping Switch", DA7213_AUX_L_CTRL,
482                      DA7213_AUX_R_CTRL, DA7213_GAIN_RAMP_EN_SHIFT,
483                      DA7213_GAIN_RAMP_EN_MAX, DA7213_NO_INVERT),
484         SOC_DOUBLE_R("Mixin Gain Ramping Switch", DA7213_MIXIN_L_CTRL,
485                      DA7213_MIXIN_R_CTRL, DA7213_GAIN_RAMP_EN_SHIFT,
486                      DA7213_GAIN_RAMP_EN_MAX, DA7213_NO_INVERT),
487         SOC_DOUBLE_R("ADC Gain Ramping Switch", DA7213_ADC_L_CTRL,
488                      DA7213_ADC_R_CTRL, DA7213_GAIN_RAMP_EN_SHIFT,
489                      DA7213_GAIN_RAMP_EN_MAX, DA7213_NO_INVERT),
490         SOC_DOUBLE_R("DAC Gain Ramping Switch", DA7213_DAC_L_CTRL,
491                      DA7213_DAC_R_CTRL, DA7213_GAIN_RAMP_EN_SHIFT,
492                      DA7213_GAIN_RAMP_EN_MAX, DA7213_NO_INVERT),
493         SOC_DOUBLE_R("Headphone Gain Ramping Switch", DA7213_HP_L_CTRL,
494                      DA7213_HP_R_CTRL, DA7213_GAIN_RAMP_EN_SHIFT,
495                      DA7213_GAIN_RAMP_EN_MAX, DA7213_NO_INVERT),
496         SOC_SINGLE("Lineout Gain Ramping Switch", DA7213_LINE_CTRL,
497                    DA7213_GAIN_RAMP_EN_SHIFT, DA7213_GAIN_RAMP_EN_MAX,
498                    DA7213_NO_INVERT),
499         SOC_ENUM("Gain Ramping Rate", da7213_gain_ramp_rate),
500 
501         /* DAC Noise Gate controls */
502         SOC_SINGLE("DAC NG Switch", DA7213_DAC_NG_CTRL, DA7213_DAC_NG_EN_SHIFT,
503                    DA7213_DAC_NG_EN_MAX, DA7213_NO_INVERT),
504         SOC_ENUM("DAC NG Setup Time", da7213_dac_ng_setup_time),
505         SOC_ENUM("DAC NG Rampup Rate", da7213_dac_ng_rampup_rate),
506         SOC_ENUM("DAC NG Rampdown Rate", da7213_dac_ng_rampdown_rate),
507         SOC_SINGLE("DAC NG OFF Threshold", DA7213_DAC_NG_OFF_THRESHOLD,
508                    DA7213_DAC_NG_THRESHOLD_SHIFT, DA7213_DAC_NG_THRESHOLD_MAX,
509                    DA7213_NO_INVERT),
510         SOC_SINGLE("DAC NG ON Threshold", DA7213_DAC_NG_ON_THRESHOLD,
511                    DA7213_DAC_NG_THRESHOLD_SHIFT, DA7213_DAC_NG_THRESHOLD_MAX,
512                    DA7213_NO_INVERT),
513 
514         /* DAC Routing & Inversion */
515         SOC_DOUBLE("DAC Mono Switch", DA7213_DIG_ROUTING_DAC,
516                    DA7213_DAC_L_MONO_SHIFT, DA7213_DAC_R_MONO_SHIFT,
517                    DA7213_DAC_MONO_MAX, DA7213_NO_INVERT),
518         SOC_DOUBLE("DAC Invert Switch", DA7213_DIG_CTRL, DA7213_DAC_L_INV_SHIFT,
519                    DA7213_DAC_R_INV_SHIFT, DA7213_DAC_INV_MAX,
520                    DA7213_NO_INVERT),
521 
522         /* DMIC controls */
523         SOC_DOUBLE_R("DMIC Switch", DA7213_MIXIN_L_SELECT,
524                      DA7213_MIXIN_R_SELECT, DA7213_DMIC_EN_SHIFT,
525                      DA7213_DMIC_EN_MAX, DA7213_NO_INVERT),
526 
527         /* ALC Controls */
528         SOC_DOUBLE_EXT("ALC Switch", DA7213_ALC_CTRL1, DA7213_ALC_L_EN_SHIFT,
529                        DA7213_ALC_R_EN_SHIFT, DA7213_ALC_EN_MAX,
530                        DA7213_NO_INVERT, snd_soc_get_volsw, da7213_put_alc_sw),
531         SOC_ENUM("ALC Attack Rate", da7213_alc_attack_rate),
532         SOC_ENUM("ALC Release Rate", da7213_alc_release_rate),
533         SOC_ENUM("ALC Hold Time", da7213_alc_hold_time),
534         /*
535          * Rate at which input signal envelope is tracked as the signal gets
536          * larger
537          */
538         SOC_ENUM("ALC Integ Attack Rate", da7213_alc_integ_attack_rate),
539         /*
540          * Rate at which input signal envelope is tracked as the signal gets
541          * smaller
542          */
543         SOC_ENUM("ALC Integ Release Rate", da7213_alc_integ_release_rate),
544         SOC_SINGLE_TLV("ALC Noise Threshold Volume", DA7213_ALC_NOISE,
545                        DA7213_ALC_THRESHOLD_SHIFT, DA7213_ALC_THRESHOLD_MAX,
546                        DA7213_INVERT, alc_threshold_tlv),
547         SOC_SINGLE_TLV("ALC Min Threshold Volume", DA7213_ALC_TARGET_MIN,
548                        DA7213_ALC_THRESHOLD_SHIFT, DA7213_ALC_THRESHOLD_MAX,
549                        DA7213_INVERT, alc_threshold_tlv),
550         SOC_SINGLE_TLV("ALC Max Threshold Volume", DA7213_ALC_TARGET_MAX,
551                        DA7213_ALC_THRESHOLD_SHIFT, DA7213_ALC_THRESHOLD_MAX,
552                        DA7213_INVERT, alc_threshold_tlv),
553         SOC_SINGLE_TLV("ALC Max Attenuation Volume", DA7213_ALC_GAIN_LIMITS,
554                        DA7213_ALC_ATTEN_MAX_SHIFT,
555                        DA7213_ALC_ATTEN_GAIN_MAX_MAX, DA7213_NO_INVERT,
556                        alc_gain_tlv),
557         SOC_SINGLE_TLV("ALC Max Gain Volume", DA7213_ALC_GAIN_LIMITS,
558                        DA7213_ALC_GAIN_MAX_SHIFT, DA7213_ALC_ATTEN_GAIN_MAX_MAX,
559                        DA7213_NO_INVERT, alc_gain_tlv),
560         SOC_SINGLE_TLV("ALC Min Analog Gain Volume", DA7213_ALC_ANA_GAIN_LIMITS,
561                        DA7213_ALC_ANA_GAIN_MIN_SHIFT, DA7213_ALC_ANA_GAIN_MAX,
562                        DA7213_NO_INVERT, alc_analog_gain_tlv),
563         SOC_SINGLE_TLV("ALC Max Analog Gain Volume", DA7213_ALC_ANA_GAIN_LIMITS,
564                        DA7213_ALC_ANA_GAIN_MAX_SHIFT, DA7213_ALC_ANA_GAIN_MAX,
565                        DA7213_NO_INVERT, alc_analog_gain_tlv),
566         SOC_SINGLE("ALC Anticlip Mode Switch", DA7213_ALC_ANTICLIP_CTRL,
567                    DA7213_ALC_ANTICLIP_EN_SHIFT, DA7213_ALC_ANTICLIP_EN_MAX,
568                    DA7213_NO_INVERT),
569         SOC_SINGLE("ALC Anticlip Level", DA7213_ALC_ANTICLIP_LEVEL,
570                    DA7213_ALC_ANTICLIP_LEVEL_SHIFT,
571                    DA7213_ALC_ANTICLIP_LEVEL_MAX, DA7213_NO_INVERT),
572 };
573 
574 
575 /*
576  * DAPM
577  */
578 
579 /*
580  * Enums
581  */
582 
583 /* MIC PGA source select */
584 static const char * const da7213_mic_amp_in_sel_txt[] = {
585         "Differential", "MIC_P", "MIC_N"
586 };
587 
588 static SOC_ENUM_SINGLE_DECL(da7213_mic_1_amp_in_sel,
589                             DA7213_MIC_1_CTRL,
590                             DA7213_MIC_AMP_IN_SEL_SHIFT,
591                             da7213_mic_amp_in_sel_txt);
592 static const struct snd_kcontrol_new da7213_mic_1_amp_in_sel_mux =
593         SOC_DAPM_ENUM("Mic 1 Amp Source MUX", da7213_mic_1_amp_in_sel);
594 
595 static SOC_ENUM_SINGLE_DECL(da7213_mic_2_amp_in_sel,
596                             DA7213_MIC_2_CTRL,
597                             DA7213_MIC_AMP_IN_SEL_SHIFT,
598                             da7213_mic_amp_in_sel_txt);
599 static const struct snd_kcontrol_new da7213_mic_2_amp_in_sel_mux =
600         SOC_DAPM_ENUM("Mic 2 Amp Source MUX", da7213_mic_2_amp_in_sel);
601 
602 /* DAI routing select */
603 static const char * const da7213_dai_src_txt[] = {
604         "ADC Left", "ADC Right", "DAI Input Left", "DAI Input Right"
605 };
606 
607 static SOC_ENUM_SINGLE_DECL(da7213_dai_l_src,
608                             DA7213_DIG_ROUTING_DAI,
609                             DA7213_DAI_L_SRC_SHIFT,
610                             da7213_dai_src_txt);
611 static const struct snd_kcontrol_new da7213_dai_l_src_mux =
612         SOC_DAPM_ENUM("DAI Left Source MUX", da7213_dai_l_src);
613 
614 static SOC_ENUM_SINGLE_DECL(da7213_dai_r_src,
615                             DA7213_DIG_ROUTING_DAI,
616                             DA7213_DAI_R_SRC_SHIFT,
617                             da7213_dai_src_txt);
618 static const struct snd_kcontrol_new da7213_dai_r_src_mux =
619         SOC_DAPM_ENUM("DAI Right Source MUX", da7213_dai_r_src);
620 
621 /* DAC routing select */
622 static const char * const da7213_dac_src_txt[] = {
623         "ADC Output Left", "ADC Output Right", "DAI Input Left",
624         "DAI Input Right"
625 };
626 
627 static SOC_ENUM_SINGLE_DECL(da7213_dac_l_src,
628                             DA7213_DIG_ROUTING_DAC,
629                             DA7213_DAC_L_SRC_SHIFT,
630                             da7213_dac_src_txt);
631 static const struct snd_kcontrol_new da7213_dac_l_src_mux =
632         SOC_DAPM_ENUM("DAC Left Source MUX", da7213_dac_l_src);
633 
634 static SOC_ENUM_SINGLE_DECL(da7213_dac_r_src,
635                             DA7213_DIG_ROUTING_DAC,
636                             DA7213_DAC_R_SRC_SHIFT,
637                             da7213_dac_src_txt);
638 static const struct snd_kcontrol_new da7213_dac_r_src_mux =
639         SOC_DAPM_ENUM("DAC Right Source MUX", da7213_dac_r_src);
640 
641 /*
642  * Mixer Controls
643  */
644 
645 /* Mixin Left */
646 static const struct snd_kcontrol_new da7213_dapm_mixinl_controls[] = {
647         SOC_DAPM_SINGLE("Aux Left Switch", DA7213_MIXIN_L_SELECT,
648                         DA7213_MIXIN_L_MIX_SELECT_AUX_L_SHIFT,
649                         DA7213_MIXIN_L_MIX_SELECT_MAX, DA7213_NO_INVERT),
650         SOC_DAPM_SINGLE("Mic 1 Switch", DA7213_MIXIN_L_SELECT,
651                         DA7213_MIXIN_L_MIX_SELECT_MIC_1_SHIFT,
652                         DA7213_MIXIN_L_MIX_SELECT_MAX, DA7213_NO_INVERT),
653         SOC_DAPM_SINGLE("Mic 2 Switch", DA7213_MIXIN_L_SELECT,
654                         DA7213_MIXIN_L_MIX_SELECT_MIC_2_SHIFT,
655                         DA7213_MIXIN_L_MIX_SELECT_MAX, DA7213_NO_INVERT),
656         SOC_DAPM_SINGLE("Mixin Right Switch", DA7213_MIXIN_L_SELECT,
657                         DA7213_MIXIN_L_MIX_SELECT_MIXIN_R_SHIFT,
658                         DA7213_MIXIN_L_MIX_SELECT_MAX, DA7213_NO_INVERT),
659 };
660 
661 /* Mixin Right */
662 static const struct snd_kcontrol_new da7213_dapm_mixinr_controls[] = {
663         SOC_DAPM_SINGLE("Aux Right Switch", DA7213_MIXIN_R_SELECT,
664                         DA7213_MIXIN_R_MIX_SELECT_AUX_R_SHIFT,
665                         DA7213_MIXIN_R_MIX_SELECT_MAX, DA7213_NO_INVERT),
666         SOC_DAPM_SINGLE("Mic 2 Switch", DA7213_MIXIN_R_SELECT,
667                         DA7213_MIXIN_R_MIX_SELECT_MIC_2_SHIFT,
668                         DA7213_MIXIN_R_MIX_SELECT_MAX, DA7213_NO_INVERT),
669         SOC_DAPM_SINGLE("Mic 1 Switch", DA7213_MIXIN_R_SELECT,
670                         DA7213_MIXIN_R_MIX_SELECT_MIC_1_SHIFT,
671                         DA7213_MIXIN_R_MIX_SELECT_MAX, DA7213_NO_INVERT),
672         SOC_DAPM_SINGLE("Mixin Left Switch", DA7213_MIXIN_R_SELECT,
673                         DA7213_MIXIN_R_MIX_SELECT_MIXIN_L_SHIFT,
674                         DA7213_MIXIN_R_MIX_SELECT_MAX, DA7213_NO_INVERT),
675 };
676 
677 /* Mixout Left */
678 static const struct snd_kcontrol_new da7213_dapm_mixoutl_controls[] = {
679         SOC_DAPM_SINGLE("Aux Left Switch", DA7213_MIXOUT_L_SELECT,
680                         DA7213_MIXOUT_L_MIX_SELECT_AUX_L_SHIFT,
681                         DA7213_MIXOUT_L_MIX_SELECT_MAX, DA7213_NO_INVERT),
682         SOC_DAPM_SINGLE("Mixin Left Switch", DA7213_MIXOUT_L_SELECT,
683                         DA7213_MIXOUT_L_MIX_SELECT_MIXIN_L_SHIFT,
684                         DA7213_MIXOUT_L_MIX_SELECT_MAX, DA7213_NO_INVERT),
685         SOC_DAPM_SINGLE("Mixin Right Switch", DA7213_MIXOUT_L_SELECT,
686                         DA7213_MIXOUT_L_MIX_SELECT_MIXIN_R_SHIFT,
687                         DA7213_MIXOUT_L_MIX_SELECT_MAX, DA7213_NO_INVERT),
688         SOC_DAPM_SINGLE("DAC Left Switch", DA7213_MIXOUT_L_SELECT,
689                         DA7213_MIXOUT_L_MIX_SELECT_DAC_L_SHIFT,
690                         DA7213_MIXOUT_L_MIX_SELECT_MAX, DA7213_NO_INVERT),
691         SOC_DAPM_SINGLE("Aux Left Invert Switch", DA7213_MIXOUT_L_SELECT,
692                         DA7213_MIXOUT_L_MIX_SELECT_AUX_L_INVERTED_SHIFT,
693                         DA7213_MIXOUT_L_MIX_SELECT_MAX, DA7213_NO_INVERT),
694         SOC_DAPM_SINGLE("Mixin Left Invert Switch", DA7213_MIXOUT_L_SELECT,
695                         DA7213_MIXOUT_L_MIX_SELECT_MIXIN_L_INVERTED_SHIFT,
696                         DA7213_MIXOUT_L_MIX_SELECT_MAX, DA7213_NO_INVERT),
697         SOC_DAPM_SINGLE("Mixin Right Invert Switch", DA7213_MIXOUT_L_SELECT,
698                         DA7213_MIXOUT_L_MIX_SELECT_MIXIN_R_INVERTED_SHIFT,
699                         DA7213_MIXOUT_L_MIX_SELECT_MAX, DA7213_NO_INVERT),
700 };
701 
702 /* Mixout Right */
703 static const struct snd_kcontrol_new da7213_dapm_mixoutr_controls[] = {
704         SOC_DAPM_SINGLE("Aux Right Switch", DA7213_MIXOUT_R_SELECT,
705                         DA7213_MIXOUT_R_MIX_SELECT_AUX_R_SHIFT,
706                         DA7213_MIXOUT_R_MIX_SELECT_MAX, DA7213_NO_INVERT),
707         SOC_DAPM_SINGLE("Mixin Right Switch", DA7213_MIXOUT_R_SELECT,
708                         DA7213_MIXOUT_R_MIX_SELECT_MIXIN_R_SHIFT,
709                         DA7213_MIXOUT_R_MIX_SELECT_MAX, DA7213_NO_INVERT),
710         SOC_DAPM_SINGLE("Mixin Left Switch", DA7213_MIXOUT_R_SELECT,
711                         DA7213_MIXOUT_R_MIX_SELECT_MIXIN_L_SHIFT,
712                         DA7213_MIXOUT_R_MIX_SELECT_MAX, DA7213_NO_INVERT),
713         SOC_DAPM_SINGLE("DAC Right Switch", DA7213_MIXOUT_R_SELECT,
714                         DA7213_MIXOUT_R_MIX_SELECT_DAC_R_SHIFT,
715                         DA7213_MIXOUT_R_MIX_SELECT_MAX, DA7213_NO_INVERT),
716         SOC_DAPM_SINGLE("Aux Right Invert Switch", DA7213_MIXOUT_R_SELECT,
717                         DA7213_MIXOUT_R_MIX_SELECT_AUX_R_INVERTED_SHIFT,
718                         DA7213_MIXOUT_R_MIX_SELECT_MAX, DA7213_NO_INVERT),
719         SOC_DAPM_SINGLE("Mixin Right Invert Switch", DA7213_MIXOUT_R_SELECT,
720                         DA7213_MIXOUT_R_MIX_SELECT_MIXIN_R_INVERTED_SHIFT,
721                         DA7213_MIXOUT_R_MIX_SELECT_MAX, DA7213_NO_INVERT),
722         SOC_DAPM_SINGLE("Mixin Left Invert Switch", DA7213_MIXOUT_R_SELECT,
723                         DA7213_MIXOUT_R_MIX_SELECT_MIXIN_L_INVERTED_SHIFT,
724                         DA7213_MIXOUT_R_MIX_SELECT_MAX, DA7213_NO_INVERT),
725 };
726 
727 
728 /*
729  * DAPM Events
730  */
731 
732 static int da7213_dai_event(struct snd_soc_dapm_widget *w,
733                             struct snd_kcontrol *kcontrol, int event)
734 {
735         struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
736         struct da7213_priv *da7213 = snd_soc_codec_get_drvdata(codec);
737         u8 pll_ctrl, pll_status;
738         int i = 0;
739         bool srm_lock = false;
740 
741         switch (event) {
742         case SND_SOC_DAPM_PRE_PMU:
743                 /* Enable DAI clks for master mode */
744                 if (da7213->master)
745                         snd_soc_update_bits(codec, DA7213_DAI_CLK_MODE,
746                                             DA7213_DAI_CLK_EN_MASK,
747                                             DA7213_DAI_CLK_EN_MASK);
748 
749                 /* PC synchronised to DAI */
750                 snd_soc_update_bits(codec, DA7213_PC_COUNT,
751                                     DA7213_PC_FREERUN_MASK, 0);
752 
753                 /* Slave mode, if SRM not enabled no need for status checks */
754                 pll_ctrl = snd_soc_read(codec, DA7213_PLL_CTRL);
755                 if (!(pll_ctrl & DA7213_PLL_SRM_EN))
756                         return 0;
757 
758                 /* Check SRM has locked */
759                 do {
760                         pll_status = snd_soc_read(codec, DA7213_PLL_STATUS);
761                         if (pll_status & DA7219_PLL_SRM_LOCK) {
762                                 srm_lock = true;
763                         } else {
764                                 ++i;
765                                 msleep(50);
766                         }
767                 } while ((i < DA7213_SRM_CHECK_RETRIES) & (!srm_lock));
768 
769                 if (!srm_lock)
770                         dev_warn(codec->dev, "SRM failed to lock\n");
771 
772                 return 0;
773         case SND_SOC_DAPM_POST_PMD:
774                 /* PC free-running */
775                 snd_soc_update_bits(codec, DA7213_PC_COUNT,
776                                     DA7213_PC_FREERUN_MASK,
777                                     DA7213_PC_FREERUN_MASK);
778 
779                 /* Disable DAI clks if in master mode */
780                 if (da7213->master)
781                         snd_soc_update_bits(codec, DA7213_DAI_CLK_MODE,
782                                             DA7213_DAI_CLK_EN_MASK, 0);
783                 return 0;
784         default:
785                 return -EINVAL;
786         }
787 }
788 
789 
790 /*
791  * DAPM widgets
792  */
793 
794 static const struct snd_soc_dapm_widget da7213_dapm_widgets[] = {
795         /*
796          * Input & Output
797          */
798 
799         /* Use a supply here as this controls both input & output DAIs */
800         SND_SOC_DAPM_SUPPLY("DAI", DA7213_DAI_CTRL, DA7213_DAI_EN_SHIFT,
801                             DA7213_NO_INVERT, da7213_dai_event,
802                             SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
803 
804         /*
805          * Input
806          */
807 
808         /* Input Lines */
809         SND_SOC_DAPM_INPUT("MIC1"),
810         SND_SOC_DAPM_INPUT("MIC2"),
811         SND_SOC_DAPM_INPUT("AUXL"),
812         SND_SOC_DAPM_INPUT("AUXR"),
813 
814         /* MUXs for Mic PGA source selection */
815         SND_SOC_DAPM_MUX("Mic 1 Amp Source MUX", SND_SOC_NOPM, 0, 0,
816                          &da7213_mic_1_amp_in_sel_mux),
817         SND_SOC_DAPM_MUX("Mic 2 Amp Source MUX", SND_SOC_NOPM, 0, 0,
818                          &da7213_mic_2_amp_in_sel_mux),
819 
820         /* Input PGAs */
821         SND_SOC_DAPM_PGA("Mic 1 PGA", DA7213_MIC_1_CTRL, DA7213_AMP_EN_SHIFT,
822                          DA7213_NO_INVERT, NULL, 0),
823         SND_SOC_DAPM_PGA("Mic 2 PGA", DA7213_MIC_2_CTRL, DA7213_AMP_EN_SHIFT,
824                          DA7213_NO_INVERT, NULL, 0),
825         SND_SOC_DAPM_PGA("Aux Left PGA", DA7213_AUX_L_CTRL, DA7213_AMP_EN_SHIFT,
826                          DA7213_NO_INVERT, NULL, 0),
827         SND_SOC_DAPM_PGA("Aux Right PGA", DA7213_AUX_R_CTRL,
828                          DA7213_AMP_EN_SHIFT, DA7213_NO_INVERT, NULL, 0),
829         SND_SOC_DAPM_PGA("Mixin Left PGA", DA7213_MIXIN_L_CTRL,
830                          DA7213_AMP_EN_SHIFT, DA7213_NO_INVERT, NULL, 0),
831         SND_SOC_DAPM_PGA("Mixin Right PGA", DA7213_MIXIN_R_CTRL,
832                          DA7213_AMP_EN_SHIFT, DA7213_NO_INVERT, NULL, 0),
833 
834         /* Mic Biases */
835         SND_SOC_DAPM_SUPPLY("Mic Bias 1", DA7213_MICBIAS_CTRL,
836                             DA7213_MICBIAS1_EN_SHIFT, DA7213_NO_INVERT,
837                             NULL, 0),
838         SND_SOC_DAPM_SUPPLY("Mic Bias 2", DA7213_MICBIAS_CTRL,
839                             DA7213_MICBIAS2_EN_SHIFT, DA7213_NO_INVERT,
840                             NULL, 0),
841 
842         /* Input Mixers */
843         SND_SOC_DAPM_MIXER("Mixin Left", SND_SOC_NOPM, 0, 0,
844                            &da7213_dapm_mixinl_controls[0],
845                            ARRAY_SIZE(da7213_dapm_mixinl_controls)),
846         SND_SOC_DAPM_MIXER("Mixin Right", SND_SOC_NOPM, 0, 0,
847                            &da7213_dapm_mixinr_controls[0],
848                            ARRAY_SIZE(da7213_dapm_mixinr_controls)),
849 
850         /* ADCs */
851         SND_SOC_DAPM_ADC("ADC Left", NULL, DA7213_ADC_L_CTRL,
852                          DA7213_ADC_EN_SHIFT, DA7213_NO_INVERT),
853         SND_SOC_DAPM_ADC("ADC Right", NULL, DA7213_ADC_R_CTRL,
854                          DA7213_ADC_EN_SHIFT, DA7213_NO_INVERT),
855 
856         /* DAI */
857         SND_SOC_DAPM_MUX("DAI Left Source MUX", SND_SOC_NOPM, 0, 0,
858                          &da7213_dai_l_src_mux),
859         SND_SOC_DAPM_MUX("DAI Right Source MUX", SND_SOC_NOPM, 0, 0,
860                          &da7213_dai_r_src_mux),
861         SND_SOC_DAPM_AIF_OUT("DAIOUTL", "Capture", 0, SND_SOC_NOPM, 0, 0),
862         SND_SOC_DAPM_AIF_OUT("DAIOUTR", "Capture", 1, SND_SOC_NOPM, 0, 0),
863 
864         /*
865          * Output
866          */
867 
868         /* DAI */
869         SND_SOC_DAPM_AIF_IN("DAIINL", "Playback", 0, SND_SOC_NOPM, 0, 0),
870         SND_SOC_DAPM_AIF_IN("DAIINR", "Playback", 1, SND_SOC_NOPM, 0, 0),
871         SND_SOC_DAPM_MUX("DAC Left Source MUX", SND_SOC_NOPM, 0, 0,
872                          &da7213_dac_l_src_mux),
873         SND_SOC_DAPM_MUX("DAC Right Source MUX", SND_SOC_NOPM, 0, 0,
874                          &da7213_dac_r_src_mux),
875 
876         /* DACs */
877         SND_SOC_DAPM_DAC("DAC Left", NULL, DA7213_DAC_L_CTRL,
878                          DA7213_DAC_EN_SHIFT, DA7213_NO_INVERT),
879         SND_SOC_DAPM_DAC("DAC Right", NULL, DA7213_DAC_R_CTRL,
880                          DA7213_DAC_EN_SHIFT, DA7213_NO_INVERT),
881 
882         /* Output Mixers */
883         SND_SOC_DAPM_MIXER("Mixout Left", SND_SOC_NOPM, 0, 0,
884                            &da7213_dapm_mixoutl_controls[0],
885                            ARRAY_SIZE(da7213_dapm_mixoutl_controls)),
886         SND_SOC_DAPM_MIXER("Mixout Right", SND_SOC_NOPM, 0, 0,
887                            &da7213_dapm_mixoutr_controls[0],
888                            ARRAY_SIZE(da7213_dapm_mixoutr_controls)),
889 
890         /* Output PGAs */
891         SND_SOC_DAPM_PGA("Mixout Left PGA", DA7213_MIXOUT_L_CTRL,
892                          DA7213_AMP_EN_SHIFT, DA7213_NO_INVERT, NULL, 0),
893         SND_SOC_DAPM_PGA("Mixout Right PGA", DA7213_MIXOUT_R_CTRL,
894                          DA7213_AMP_EN_SHIFT, DA7213_NO_INVERT, NULL, 0),
895         SND_SOC_DAPM_PGA("Lineout PGA", DA7213_LINE_CTRL, DA7213_AMP_EN_SHIFT,
896                          DA7213_NO_INVERT, NULL, 0),
897         SND_SOC_DAPM_PGA("Headphone Left PGA", DA7213_HP_L_CTRL,
898                          DA7213_AMP_EN_SHIFT, DA7213_NO_INVERT, NULL, 0),
899         SND_SOC_DAPM_PGA("Headphone Right PGA", DA7213_HP_R_CTRL,
900                          DA7213_AMP_EN_SHIFT, DA7213_NO_INVERT, NULL, 0),
901 
902         /* Charge Pump */
903         SND_SOC_DAPM_SUPPLY("Charge Pump", DA7213_CP_CTRL, DA7213_CP_EN_SHIFT,
904                             DA7213_NO_INVERT, NULL, 0),
905 
906         /* Output Lines */
907         SND_SOC_DAPM_OUTPUT("HPL"),
908         SND_SOC_DAPM_OUTPUT("HPR"),
909         SND_SOC_DAPM_OUTPUT("LINE"),
910 };
911 
912 
913 /*
914  * DAPM audio route definition
915  */
916 
917 static const struct snd_soc_dapm_route da7213_audio_map[] = {
918         /* Dest       Connecting Widget    source */
919 
920         /* Input path */
921         {"MIC1", NULL, "Mic Bias 1"},
922         {"MIC2", NULL, "Mic Bias 2"},
923 
924         {"Mic 1 Amp Source MUX", "Differential", "MIC1"},
925         {"Mic 1 Amp Source MUX", "MIC_P", "MIC1"},
926         {"Mic 1 Amp Source MUX", "MIC_N", "MIC1"},
927 
928         {"Mic 2 Amp Source MUX", "Differential", "MIC2"},
929         {"Mic 2 Amp Source MUX", "MIC_P", "MIC2"},
930         {"Mic 2 Amp Source MUX", "MIC_N", "MIC2"},
931 
932         {"Mic 1 PGA", NULL, "Mic 1 Amp Source MUX"},
933         {"Mic 2 PGA", NULL, "Mic 2 Amp Source MUX"},
934 
935         {"Aux Left PGA", NULL, "AUXL"},
936         {"Aux Right PGA", NULL, "AUXR"},
937 
938         {"Mixin Left", "Aux Left Switch", "Aux Left PGA"},
939         {"Mixin Left", "Mic 1 Switch", "Mic 1 PGA"},
940         {"Mixin Left", "Mic 2 Switch", "Mic 2 PGA"},
941         {"Mixin Left", "Mixin Right Switch", "Mixin Right PGA"},
942 
943         {"Mixin Right", "Aux Right Switch", "Aux Right PGA"},
944         {"Mixin Right", "Mic 2 Switch", "Mic 2 PGA"},
945         {"Mixin Right", "Mic 1 Switch", "Mic 1 PGA"},
946         {"Mixin Right", "Mixin Left Switch", "Mixin Left PGA"},
947 
948         {"Mixin Left PGA", NULL, "Mixin Left"},
949         {"ADC Left", NULL, "Mixin Left PGA"},
950 
951         {"Mixin Right PGA", NULL, "Mixin Right"},
952         {"ADC Right", NULL, "Mixin Right PGA"},
953 
954         {"DAI Left Source MUX", "ADC Left", "ADC Left"},
955         {"DAI Left Source MUX", "ADC Right", "ADC Right"},
956         {"DAI Left Source MUX", "DAI Input Left", "DAIINL"},
957         {"DAI Left Source MUX", "DAI Input Right", "DAIINR"},
958 
959         {"DAI Right Source MUX", "ADC Left", "ADC Left"},
960         {"DAI Right Source MUX", "ADC Right", "ADC Right"},
961         {"DAI Right Source MUX", "DAI Input Left", "DAIINL"},
962         {"DAI Right Source MUX", "DAI Input Right", "DAIINR"},
963 
964         {"DAIOUTL", NULL, "DAI Left Source MUX"},
965         {"DAIOUTR", NULL, "DAI Right Source MUX"},
966 
967         {"DAIOUTL", NULL, "DAI"},
968         {"DAIOUTR", NULL, "DAI"},
969 
970         /* Output path */
971         {"DAIINL", NULL, "DAI"},
972         {"DAIINR", NULL, "DAI"},
973 
974         {"DAC Left Source MUX", "ADC Output Left", "ADC Left"},
975         {"DAC Left Source MUX", "ADC Output Right", "ADC Right"},
976         {"DAC Left Source MUX", "DAI Input Left", "DAIINL"},
977         {"DAC Left Source MUX", "DAI Input Right", "DAIINR"},
978 
979         {"DAC Right Source MUX", "ADC Output Left", "ADC Left"},
980         {"DAC Right Source MUX", "ADC Output Right", "ADC Right"},
981         {"DAC Right Source MUX", "DAI Input Left", "DAIINL"},
982         {"DAC Right Source MUX", "DAI Input Right", "DAIINR"},
983 
984         {"DAC Left", NULL, "DAC Left Source MUX"},
985         {"DAC Right", NULL, "DAC Right Source MUX"},
986 
987         {"Mixout Left", "Aux Left Switch", "Aux Left PGA"},
988         {"Mixout Left", "Mixin Left Switch", "Mixin Left PGA"},
989         {"Mixout Left", "Mixin Right Switch", "Mixin Right PGA"},
990         {"Mixout Left", "DAC Left Switch", "DAC Left"},
991         {"Mixout Left", "Aux Left Invert Switch", "Aux Left PGA"},
992         {"Mixout Left", "Mixin Left Invert Switch", "Mixin Left PGA"},
993         {"Mixout Left", "Mixin Right Invert Switch", "Mixin Right PGA"},
994 
995         {"Mixout Right", "Aux Right Switch", "Aux Right PGA"},
996         {"Mixout Right", "Mixin Right Switch", "Mixin Right PGA"},
997         {"Mixout Right", "Mixin Left Switch", "Mixin Left PGA"},
998         {"Mixout Right", "DAC Right Switch", "DAC Right"},
999         {"Mixout Right", "Aux Right Invert Switch", "Aux Right PGA"},
1000         {"Mixout Right", "Mixin Right Invert Switch", "Mixin Right PGA"},
1001         {"Mixout Right", "Mixin Left Invert Switch", "Mixin Left PGA"},
1002 
1003         {"Mixout Left PGA", NULL, "Mixout Left"},
1004         {"Mixout Right PGA", NULL, "Mixout Right"},
1005 
1006         {"Headphone Left PGA", NULL, "Mixout Left PGA"},
1007         {"Headphone Left PGA", NULL, "Charge Pump"},
1008         {"HPL", NULL, "Headphone Left PGA"},
1009 
1010         {"Headphone Right PGA", NULL, "Mixout Right PGA"},
1011         {"Headphone Right PGA", NULL, "Charge Pump"},
1012         {"HPR", NULL, "Headphone Right PGA"},
1013 
1014         {"Lineout PGA", NULL, "Mixout Right PGA"},
1015         {"LINE", NULL, "Lineout PGA"},
1016 };
1017 
1018 static const struct reg_default da7213_reg_defaults[] = {
1019         { DA7213_DIG_ROUTING_DAI, 0x10 },
1020         { DA7213_SR, 0x0A },
1021         { DA7213_REFERENCES, 0x80 },
1022         { DA7213_PLL_FRAC_TOP, 0x00 },
1023         { DA7213_PLL_FRAC_BOT, 0x00 },
1024         { DA7213_PLL_INTEGER, 0x20 },
1025         { DA7213_PLL_CTRL, 0x0C },
1026         { DA7213_DAI_CLK_MODE, 0x01 },
1027         { DA7213_DAI_CTRL, 0x08 },
1028         { DA7213_DIG_ROUTING_DAC, 0x32 },
1029         { DA7213_AUX_L_GAIN, 0x35 },
1030         { DA7213_AUX_R_GAIN, 0x35 },
1031         { DA7213_MIXIN_L_SELECT, 0x00 },
1032         { DA7213_MIXIN_R_SELECT, 0x00 },
1033         { DA7213_MIXIN_L_GAIN, 0x03 },
1034         { DA7213_MIXIN_R_GAIN, 0x03 },
1035         { DA7213_ADC_L_GAIN, 0x6F },
1036         { DA7213_ADC_R_GAIN, 0x6F },
1037         { DA7213_ADC_FILTERS1, 0x80 },
1038         { DA7213_MIC_1_GAIN, 0x01 },
1039         { DA7213_MIC_2_GAIN, 0x01 },
1040         { DA7213_DAC_FILTERS5, 0x00 },
1041         { DA7213_DAC_FILTERS2, 0x88 },
1042         { DA7213_DAC_FILTERS3, 0x88 },
1043         { DA7213_DAC_FILTERS4, 0x08 },
1044         { DA7213_DAC_FILTERS1, 0x80 },
1045         { DA7213_DAC_L_GAIN, 0x6F },
1046         { DA7213_DAC_R_GAIN, 0x6F },
1047         { DA7213_CP_CTRL, 0x61 },
1048         { DA7213_HP_L_GAIN, 0x39 },
1049         { DA7213_HP_R_GAIN, 0x39 },
1050         { DA7213_LINE_GAIN, 0x30 },
1051         { DA7213_MIXOUT_L_SELECT, 0x00 },
1052         { DA7213_MIXOUT_R_SELECT, 0x00 },
1053         { DA7213_SYSTEM_MODES_INPUT, 0x00 },
1054         { DA7213_SYSTEM_MODES_OUTPUT, 0x00 },
1055         { DA7213_AUX_L_CTRL, 0x44 },
1056         { DA7213_AUX_R_CTRL, 0x44 },
1057         { DA7213_MICBIAS_CTRL, 0x11 },
1058         { DA7213_MIC_1_CTRL, 0x40 },
1059         { DA7213_MIC_2_CTRL, 0x40 },
1060         { DA7213_MIXIN_L_CTRL, 0x40 },
1061         { DA7213_MIXIN_R_CTRL, 0x40 },
1062         { DA7213_ADC_L_CTRL, 0x40 },
1063         { DA7213_ADC_R_CTRL, 0x40 },
1064         { DA7213_DAC_L_CTRL, 0x48 },
1065         { DA7213_DAC_R_CTRL, 0x40 },
1066         { DA7213_HP_L_CTRL, 0x41 },
1067         { DA7213_HP_R_CTRL, 0x40 },
1068         { DA7213_LINE_CTRL, 0x40 },
1069         { DA7213_MIXOUT_L_CTRL, 0x10 },
1070         { DA7213_MIXOUT_R_CTRL, 0x10 },
1071         { DA7213_LDO_CTRL, 0x00 },
1072         { DA7213_IO_CTRL, 0x00 },
1073         { DA7213_GAIN_RAMP_CTRL, 0x00},
1074         { DA7213_MIC_CONFIG, 0x00 },
1075         { DA7213_PC_COUNT, 0x00 },
1076         { DA7213_CP_VOL_THRESHOLD1, 0x32 },
1077         { DA7213_CP_DELAY, 0x95 },
1078         { DA7213_CP_DETECTOR, 0x00 },
1079         { DA7213_DAI_OFFSET, 0x00 },
1080         { DA7213_DIG_CTRL, 0x00 },
1081         { DA7213_ALC_CTRL2, 0x00 },
1082         { DA7213_ALC_CTRL3, 0x00 },
1083         { DA7213_ALC_NOISE, 0x3F },
1084         { DA7213_ALC_TARGET_MIN, 0x3F },
1085         { DA7213_ALC_TARGET_MAX, 0x00 },
1086         { DA7213_ALC_GAIN_LIMITS, 0xFF },
1087         { DA7213_ALC_ANA_GAIN_LIMITS, 0x71 },
1088         { DA7213_ALC_ANTICLIP_CTRL, 0x00 },
1089         { DA7213_ALC_ANTICLIP_LEVEL, 0x00 },
1090         { DA7213_ALC_OFFSET_MAN_M_L, 0x00 },
1091         { DA7213_ALC_OFFSET_MAN_U_L, 0x00 },
1092         { DA7213_ALC_OFFSET_MAN_M_R, 0x00 },
1093         { DA7213_ALC_OFFSET_MAN_U_R, 0x00 },
1094         { DA7213_ALC_CIC_OP_LVL_CTRL, 0x00 },
1095         { DA7213_DAC_NG_SETUP_TIME, 0x00 },
1096         { DA7213_DAC_NG_OFF_THRESHOLD, 0x00 },
1097         { DA7213_DAC_NG_ON_THRESHOLD, 0x00 },
1098         { DA7213_DAC_NG_CTRL, 0x00 },
1099 };
1100 
1101 static bool da7213_volatile_register(struct device *dev, unsigned int reg)
1102 {
1103         switch (reg) {
1104         case DA7213_STATUS1:
1105         case DA7213_PLL_STATUS:
1106         case DA7213_AUX_L_GAIN_STATUS:
1107         case DA7213_AUX_R_GAIN_STATUS:
1108         case DA7213_MIC_1_GAIN_STATUS:
1109         case DA7213_MIC_2_GAIN_STATUS:
1110         case DA7213_MIXIN_L_GAIN_STATUS:
1111         case DA7213_MIXIN_R_GAIN_STATUS:
1112         case DA7213_ADC_L_GAIN_STATUS:
1113         case DA7213_ADC_R_GAIN_STATUS:
1114         case DA7213_DAC_L_GAIN_STATUS:
1115         case DA7213_DAC_R_GAIN_STATUS:
1116         case DA7213_HP_L_GAIN_STATUS:
1117         case DA7213_HP_R_GAIN_STATUS:
1118         case DA7213_LINE_GAIN_STATUS:
1119         case DA7213_ALC_CTRL1:
1120         case DA7213_ALC_OFFSET_AUTO_M_L:
1121         case DA7213_ALC_OFFSET_AUTO_U_L:
1122         case DA7213_ALC_OFFSET_AUTO_M_R:
1123         case DA7213_ALC_OFFSET_AUTO_U_R:
1124         case DA7213_ALC_CIC_OP_LVL_DATA:
1125                 return 1;
1126         default:
1127                 return 0;
1128         }
1129 }
1130 
1131 static int da7213_hw_params(struct snd_pcm_substream *substream,
1132                             struct snd_pcm_hw_params *params,
1133                             struct snd_soc_dai *dai)
1134 {
1135         struct snd_soc_codec *codec = dai->codec;
1136         u8 dai_ctrl = 0;
1137         u8 fs;
1138 
1139         /* Set DAI format */
1140         switch (params_width(params)) {
1141         case 16:
1142                 dai_ctrl |= DA7213_DAI_WORD_LENGTH_S16_LE;
1143                 break;
1144         case 20:
1145                 dai_ctrl |= DA7213_DAI_WORD_LENGTH_S20_LE;
1146                 break;
1147         case 24:
1148                 dai_ctrl |= DA7213_DAI_WORD_LENGTH_S24_LE;
1149                 break;
1150         case 32:
1151                 dai_ctrl |= DA7213_DAI_WORD_LENGTH_S32_LE;
1152                 break;
1153         default:
1154                 return -EINVAL;
1155         }
1156 
1157         /* Set sampling rate */
1158         switch (params_rate(params)) {
1159         case 8000:
1160                 fs = DA7213_SR_8000;
1161                 break;
1162         case 11025:
1163                 fs = DA7213_SR_11025;
1164                 break;
1165         case 12000:
1166                 fs = DA7213_SR_12000;
1167                 break;
1168         case 16000:
1169                 fs = DA7213_SR_16000;
1170                 break;
1171         case 22050:
1172                 fs = DA7213_SR_22050;
1173                 break;
1174         case 32000:
1175                 fs = DA7213_SR_32000;
1176                 break;
1177         case 44100:
1178                 fs = DA7213_SR_44100;
1179                 break;
1180         case 48000:
1181                 fs = DA7213_SR_48000;
1182                 break;
1183         case 88200:
1184                 fs = DA7213_SR_88200;
1185                 break;
1186         case 96000:
1187                 fs = DA7213_SR_96000;
1188                 break;
1189         default:
1190                 return -EINVAL;
1191         }
1192 
1193         snd_soc_update_bits(codec, DA7213_DAI_CTRL, DA7213_DAI_WORD_LENGTH_MASK,
1194                             dai_ctrl);
1195         snd_soc_write(codec, DA7213_SR, fs);
1196 
1197         return 0;
1198 }
1199 
1200 static int da7213_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
1201 {
1202         struct snd_soc_codec *codec = codec_dai->codec;
1203         struct da7213_priv *da7213 = snd_soc_codec_get_drvdata(codec);
1204         u8 dai_clk_mode = 0, dai_ctrl = 0;
1205 
1206         /* Set master/slave mode */
1207         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1208         case SND_SOC_DAIFMT_CBM_CFM:
1209                 da7213->master = true;
1210                 break;
1211         case SND_SOC_DAIFMT_CBS_CFS:
1212                 da7213->master = false;
1213                 break;
1214         default:
1215                 return -EINVAL;
1216         }
1217 
1218         /* Set clock normal/inverted */
1219         switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1220         case SND_SOC_DAIFMT_NB_NF:
1221                 break;
1222         case SND_SOC_DAIFMT_NB_IF:
1223                 dai_clk_mode |= DA7213_DAI_WCLK_POL_INV;
1224                 break;
1225         case SND_SOC_DAIFMT_IB_NF:
1226                 dai_clk_mode |= DA7213_DAI_CLK_POL_INV;
1227                 break;
1228         case SND_SOC_DAIFMT_IB_IF:
1229                 dai_clk_mode |= DA7213_DAI_WCLK_POL_INV | DA7213_DAI_CLK_POL_INV;
1230                 break;
1231         default:
1232                 return -EINVAL;
1233         }
1234 
1235         /* Only I2S is supported */
1236         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1237         case SND_SOC_DAIFMT_I2S:
1238                 dai_ctrl |= DA7213_DAI_FORMAT_I2S_MODE;
1239                 break;
1240         case SND_SOC_DAIFMT_LEFT_J:
1241                 dai_ctrl |= DA7213_DAI_FORMAT_LEFT_J;
1242                 break;
1243         case SND_SOC_DAIFMT_RIGHT_J:
1244                 dai_ctrl |= DA7213_DAI_FORMAT_RIGHT_J;
1245                 break;
1246         default:
1247                 return -EINVAL;
1248         }
1249 
1250         /* By default only 32 BCLK per WCLK is supported */
1251         dai_clk_mode |= DA7213_DAI_BCLKS_PER_WCLK_32;
1252 
1253         snd_soc_write(codec, DA7213_DAI_CLK_MODE, dai_clk_mode);
1254         snd_soc_update_bits(codec, DA7213_DAI_CTRL, DA7213_DAI_FORMAT_MASK,
1255                             dai_ctrl);
1256 
1257         return 0;
1258 }
1259 
1260 static int da7213_mute(struct snd_soc_dai *dai, int mute)
1261 {
1262         struct snd_soc_codec *codec = dai->codec;
1263 
1264         if (mute) {
1265                 snd_soc_update_bits(codec, DA7213_DAC_L_CTRL,
1266                                     DA7213_MUTE_EN, DA7213_MUTE_EN);
1267                 snd_soc_update_bits(codec, DA7213_DAC_R_CTRL,
1268                                     DA7213_MUTE_EN, DA7213_MUTE_EN);
1269         } else {
1270                 snd_soc_update_bits(codec, DA7213_DAC_L_CTRL,
1271                                     DA7213_MUTE_EN, 0);
1272                 snd_soc_update_bits(codec, DA7213_DAC_R_CTRL,
1273                                     DA7213_MUTE_EN, 0);
1274         }
1275 
1276         return 0;
1277 }
1278 
1279 #define DA7213_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1280                         SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
1281 
1282 static int da7213_set_dai_sysclk(struct snd_soc_dai *codec_dai,
1283                                  int clk_id, unsigned int freq, int dir)
1284 {
1285         struct snd_soc_codec *codec = codec_dai->codec;
1286         struct da7213_priv *da7213 = snd_soc_codec_get_drvdata(codec);
1287         int ret = 0;
1288 
1289         if ((da7213->clk_src == clk_id) && (da7213->mclk_rate == freq))
1290                 return 0;
1291 
1292         if (((freq < 5000000) && (freq != 32768)) || (freq > 54000000)) {
1293                 dev_err(codec_dai->dev, "Unsupported MCLK value %d\n",
1294                         freq);
1295                 return -EINVAL;
1296         }
1297 
1298         switch (clk_id) {
1299         case DA7213_CLKSRC_MCLK:
1300                 da7213->mclk_squarer_en = false;
1301                 break;
1302         case DA7213_CLKSRC_MCLK_SQR:
1303                 da7213->mclk_squarer_en = true;
1304                 break;
1305         default:
1306                 dev_err(codec_dai->dev, "Unknown clock source %d\n", clk_id);
1307                 return -EINVAL;
1308         }
1309 
1310         da7213->clk_src = clk_id;
1311 
1312         if (da7213->mclk) {
1313                 freq = clk_round_rate(da7213->mclk, freq);
1314                 ret = clk_set_rate(da7213->mclk, freq);
1315                 if (ret) {
1316                         dev_err(codec_dai->dev, "Failed to set clock rate %d\n",
1317                                 freq);
1318                         return ret;
1319                 }
1320         }
1321 
1322         da7213->mclk_rate = freq;
1323 
1324         return 0;
1325 }
1326 
1327 /* Supported PLL input frequencies are 5MHz - 54MHz. */
1328 static int da7213_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
1329                               int source, unsigned int fref, unsigned int fout)
1330 {
1331         struct snd_soc_codec *codec = codec_dai->codec;
1332         struct da7213_priv *da7213 = snd_soc_codec_get_drvdata(codec);
1333 
1334         u8 pll_ctrl, indiv_bits, indiv;
1335         u8 pll_frac_top, pll_frac_bot, pll_integer;
1336         u32 freq_ref;
1337         u64 frac_div;
1338 
1339         /* Reset PLL configuration */
1340         snd_soc_write(codec, DA7213_PLL_CTRL, 0);
1341 
1342         pll_ctrl = 0;
1343 
1344         /* Workout input divider based on MCLK rate */
1345         if (da7213->mclk_rate == 32768) {
1346                 /* 32KHz PLL Mode */
1347                 indiv_bits = DA7213_PLL_INDIV_9_TO_18_MHZ;
1348                 indiv = DA7213_PLL_INDIV_9_TO_18_MHZ_VAL;
1349                 freq_ref = 3750000;
1350                 pll_ctrl |= DA7213_PLL_32K_MODE;
1351         } else {
1352                 /* 5 - 54MHz MCLK */
1353                 if (da7213->mclk_rate < 5000000) {
1354                         goto pll_err;
1355                 } else if (da7213->mclk_rate <= 9000000) {
1356                         indiv_bits = DA7213_PLL_INDIV_5_TO_9_MHZ;
1357                         indiv = DA7213_PLL_INDIV_5_TO_9_MHZ_VAL;
1358                 } else if (da7213->mclk_rate <= 18000000) {
1359                         indiv_bits = DA7213_PLL_INDIV_9_TO_18_MHZ;
1360                         indiv = DA7213_PLL_INDIV_9_TO_18_MHZ_VAL;
1361                 } else if (da7213->mclk_rate <= 36000000) {
1362                         indiv_bits = DA7213_PLL_INDIV_18_TO_36_MHZ;
1363                         indiv = DA7213_PLL_INDIV_18_TO_36_MHZ_VAL;
1364                 } else if (da7213->mclk_rate <= 54000000) {
1365                         indiv_bits = DA7213_PLL_INDIV_36_TO_54_MHZ;
1366                         indiv = DA7213_PLL_INDIV_36_TO_54_MHZ_VAL;
1367                 } else {
1368                         goto pll_err;
1369                 }
1370                 freq_ref = (da7213->mclk_rate / indiv);
1371         }
1372 
1373         pll_ctrl |= indiv_bits;
1374 
1375         /* PLL Bypass mode */
1376         if (source == DA7213_SYSCLK_MCLK) {
1377                 snd_soc_write(codec, DA7213_PLL_CTRL, pll_ctrl);
1378                 return 0;
1379         }
1380 
1381         /*
1382          * If Codec is slave and SRM enabled,
1383          * freq_out is (98304000 + 90316800)/2 = 94310400
1384          */
1385         if (!da7213->master && da7213->srm_en) {
1386                 fout = DA7213_PLL_FREQ_OUT_94310400;
1387                 pll_ctrl |= DA7213_PLL_SRM_EN;
1388         }
1389 
1390         /* Enable MCLK squarer if required */
1391         if (da7213->mclk_squarer_en)
1392                 pll_ctrl |= DA7213_PLL_MCLK_SQR_EN;
1393 
1394         /* Calculate dividers for PLL */
1395         pll_integer = fout / freq_ref;
1396         frac_div = (u64)(fout % freq_ref) * 8192ULL;
1397         do_div(frac_div, freq_ref);
1398         pll_frac_top = (frac_div >> DA7213_BYTE_SHIFT) & DA7213_BYTE_MASK;
1399         pll_frac_bot = (frac_div) & DA7213_BYTE_MASK;
1400 
1401         /* Write PLL dividers */
1402         snd_soc_write(codec, DA7213_PLL_FRAC_TOP, pll_frac_top);
1403         snd_soc_write(codec, DA7213_PLL_FRAC_BOT, pll_frac_bot);
1404         snd_soc_write(codec, DA7213_PLL_INTEGER, pll_integer);
1405 
1406         /* Enable PLL */
1407         pll_ctrl |= DA7213_PLL_EN;
1408         snd_soc_write(codec, DA7213_PLL_CTRL, pll_ctrl);
1409 
1410         return 0;
1411 
1412 pll_err:
1413         dev_err(codec_dai->dev, "Unsupported PLL input frequency %d\n",
1414                 da7213->mclk_rate);
1415         return -EINVAL;
1416 }
1417 
1418 /* DAI operations */
1419 static const struct snd_soc_dai_ops da7213_dai_ops = {
1420         .hw_params      = da7213_hw_params,
1421         .set_fmt        = da7213_set_dai_fmt,
1422         .set_sysclk     = da7213_set_dai_sysclk,
1423         .set_pll        = da7213_set_dai_pll,
1424         .digital_mute   = da7213_mute,
1425 };
1426 
1427 static struct snd_soc_dai_driver da7213_dai = {
1428         .name = "da7213-hifi",
1429         /* Playback Capabilities */
1430         .playback = {
1431                 .stream_name = "Playback",
1432                 .channels_min = 1,
1433                 .channels_max = 2,
1434                 .rates = SNDRV_PCM_RATE_8000_96000,
1435                 .formats = DA7213_FORMATS,
1436         },
1437         /* Capture Capabilities */
1438         .capture = {
1439                 .stream_name = "Capture",
1440                 .channels_min = 1,
1441                 .channels_max = 2,
1442                 .rates = SNDRV_PCM_RATE_8000_96000,
1443                 .formats = DA7213_FORMATS,
1444         },
1445         .ops = &da7213_dai_ops,
1446         .symmetric_rates = 1,
1447 };
1448 
1449 static int da7213_set_bias_level(struct snd_soc_codec *codec,
1450                                  enum snd_soc_bias_level level)
1451 {
1452         struct da7213_priv *da7213 = snd_soc_codec_get_drvdata(codec);
1453         int ret;
1454 
1455         switch (level) {
1456         case SND_SOC_BIAS_ON:
1457         case SND_SOC_BIAS_PREPARE:
1458                 break;
1459         case SND_SOC_BIAS_STANDBY:
1460                 if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
1461                         /* MCLK */
1462                         if (da7213->mclk) {
1463                                 ret = clk_prepare_enable(da7213->mclk);
1464                                 if (ret) {
1465                                         dev_err(codec->dev,
1466                                                 "Failed to enable mclk\n");
1467                                         return ret;
1468                                 }
1469                         }
1470 
1471                         /* Enable VMID reference & master bias */
1472                         snd_soc_update_bits(codec, DA7213_REFERENCES,
1473                                             DA7213_VMID_EN | DA7213_BIAS_EN,
1474                                             DA7213_VMID_EN | DA7213_BIAS_EN);
1475                 }
1476                 break;
1477         case SND_SOC_BIAS_OFF:
1478                 /* Disable VMID reference & master bias */
1479                 snd_soc_update_bits(codec, DA7213_REFERENCES,
1480                                     DA7213_VMID_EN | DA7213_BIAS_EN, 0);
1481 
1482                 /* MCLK */
1483                 if (da7213->mclk)
1484                         clk_disable_unprepare(da7213->mclk);
1485                 break;
1486         }
1487         return 0;
1488 }
1489 
1490 /* DT */
1491 static const struct of_device_id da7213_of_match[] = {
1492         { .compatible = "dlg,da7213", },
1493         { }
1494 };
1495 MODULE_DEVICE_TABLE(of, da7213_of_match);
1496 
1497 static enum da7213_micbias_voltage
1498         da7213_of_micbias_lvl(struct snd_soc_codec *codec, u32 val)
1499 {
1500         switch (val) {
1501         case 1600:
1502                 return DA7213_MICBIAS_1_6V;
1503         case 2200:
1504                 return DA7213_MICBIAS_2_2V;
1505         case 2500:
1506                 return DA7213_MICBIAS_2_5V;
1507         case 3000:
1508                 return DA7213_MICBIAS_3_0V;
1509         default:
1510                 dev_warn(codec->dev, "Invalid micbias level\n");
1511                 return DA7213_MICBIAS_2_2V;
1512         }
1513 }
1514 
1515 static enum da7213_dmic_data_sel
1516         da7213_of_dmic_data_sel(struct snd_soc_codec *codec, const char *str)
1517 {
1518         if (!strcmp(str, "lrise_rfall")) {
1519                 return DA7213_DMIC_DATA_LRISE_RFALL;
1520         } else if (!strcmp(str, "lfall_rrise")) {
1521                 return DA7213_DMIC_DATA_LFALL_RRISE;
1522         } else {
1523                 dev_warn(codec->dev, "Invalid DMIC data select type\n");
1524                 return DA7213_DMIC_DATA_LRISE_RFALL;
1525         }
1526 }
1527 
1528 static enum da7213_dmic_samplephase
1529         da7213_of_dmic_samplephase(struct snd_soc_codec *codec, const char *str)
1530 {
1531         if (!strcmp(str, "on_clkedge")) {
1532                 return DA7213_DMIC_SAMPLE_ON_CLKEDGE;
1533         } else if (!strcmp(str, "between_clkedge")) {
1534                 return DA7213_DMIC_SAMPLE_BETWEEN_CLKEDGE;
1535         } else {
1536                 dev_warn(codec->dev, "Invalid DMIC sample phase\n");
1537                 return DA7213_DMIC_SAMPLE_ON_CLKEDGE;
1538         }
1539 }
1540 
1541 static enum da7213_dmic_clk_rate
1542         da7213_of_dmic_clkrate(struct snd_soc_codec *codec, u32 val)
1543 {
1544         switch (val) {
1545         case 1500000:
1546                 return DA7213_DMIC_CLK_1_5MHZ;
1547         case 3000000:
1548                 return DA7213_DMIC_CLK_3_0MHZ;
1549         default:
1550                 dev_warn(codec->dev, "Invalid DMIC clock rate\n");
1551                 return DA7213_DMIC_CLK_1_5MHZ;
1552         }
1553 }
1554 
1555 static struct da7213_platform_data
1556         *da7213_of_to_pdata(struct snd_soc_codec *codec)
1557 {
1558         struct device_node *np = codec->dev->of_node;
1559         struct da7213_platform_data *pdata;
1560         const char *of_str;
1561         u32 of_val32;
1562 
1563         pdata = devm_kzalloc(codec->dev, sizeof(*pdata), GFP_KERNEL);
1564         if (!pdata) {
1565                 dev_warn(codec->dev, "Failed to allocate memory for pdata\n");
1566                 return NULL;
1567         }
1568 
1569         if (of_property_read_u32(np, "dlg,micbias1-lvl", &of_val32) >= 0)
1570                 pdata->micbias1_lvl = da7213_of_micbias_lvl(codec, of_val32);
1571         else
1572                 pdata->micbias1_lvl = DA7213_MICBIAS_2_2V;
1573 
1574         if (of_property_read_u32(np, "dlg,micbias2-lvl", &of_val32) >= 0)
1575                 pdata->micbias2_lvl = da7213_of_micbias_lvl(codec, of_val32);
1576         else
1577                 pdata->micbias2_lvl = DA7213_MICBIAS_2_2V;
1578 
1579         if (!of_property_read_string(np, "dlg,dmic-data-sel", &of_str))
1580                 pdata->dmic_data_sel = da7213_of_dmic_data_sel(codec, of_str);
1581         else
1582                 pdata->dmic_data_sel = DA7213_DMIC_DATA_LRISE_RFALL;
1583 
1584         if (!of_property_read_string(np, "dlg,dmic-samplephase", &of_str))
1585                 pdata->dmic_samplephase =
1586                         da7213_of_dmic_samplephase(codec, of_str);
1587         else
1588                 pdata->dmic_samplephase = DA7213_DMIC_SAMPLE_ON_CLKEDGE;
1589 
1590         if (of_property_read_u32(np, "dlg,dmic-clkrate", &of_val32) >= 0)
1591                 pdata->dmic_clk_rate = da7213_of_dmic_clkrate(codec, of_val32);
1592         else
1593                 pdata->dmic_clk_rate = DA7213_DMIC_CLK_3_0MHZ;
1594 
1595         return pdata;
1596 }
1597 
1598 
1599 static int da7213_probe(struct snd_soc_codec *codec)
1600 {
1601         struct da7213_priv *da7213 = snd_soc_codec_get_drvdata(codec);
1602 
1603         /* Default to using ALC auto offset calibration mode. */
1604         snd_soc_update_bits(codec, DA7213_ALC_CTRL1,
1605                             DA7213_ALC_CALIB_MODE_MAN, 0);
1606         da7213->alc_calib_auto = true;
1607 
1608         /* Default to using SRM for slave mode */
1609         da7213->srm_en = true;
1610 
1611         /* Default PC counter to free-running */
1612         snd_soc_update_bits(codec, DA7213_PC_COUNT, DA7213_PC_FREERUN_MASK,
1613                             DA7213_PC_FREERUN_MASK);
1614 
1615         /* Enable all Gain Ramps */
1616         snd_soc_update_bits(codec, DA7213_AUX_L_CTRL,
1617                             DA7213_GAIN_RAMP_EN, DA7213_GAIN_RAMP_EN);
1618         snd_soc_update_bits(codec, DA7213_AUX_R_CTRL,
1619                             DA7213_GAIN_RAMP_EN, DA7213_GAIN_RAMP_EN);
1620         snd_soc_update_bits(codec, DA7213_MIXIN_L_CTRL,
1621                             DA7213_GAIN_RAMP_EN, DA7213_GAIN_RAMP_EN);
1622         snd_soc_update_bits(codec, DA7213_MIXIN_R_CTRL,
1623                             DA7213_GAIN_RAMP_EN, DA7213_GAIN_RAMP_EN);
1624         snd_soc_update_bits(codec, DA7213_ADC_L_CTRL,
1625                             DA7213_GAIN_RAMP_EN, DA7213_GAIN_RAMP_EN);
1626         snd_soc_update_bits(codec, DA7213_ADC_R_CTRL,
1627                             DA7213_GAIN_RAMP_EN, DA7213_GAIN_RAMP_EN);
1628         snd_soc_update_bits(codec, DA7213_DAC_L_CTRL,
1629                             DA7213_GAIN_RAMP_EN, DA7213_GAIN_RAMP_EN);
1630         snd_soc_update_bits(codec, DA7213_DAC_R_CTRL,
1631                             DA7213_GAIN_RAMP_EN, DA7213_GAIN_RAMP_EN);
1632         snd_soc_update_bits(codec, DA7213_HP_L_CTRL,
1633                             DA7213_GAIN_RAMP_EN, DA7213_GAIN_RAMP_EN);
1634         snd_soc_update_bits(codec, DA7213_HP_R_CTRL,
1635                             DA7213_GAIN_RAMP_EN, DA7213_GAIN_RAMP_EN);
1636         snd_soc_update_bits(codec, DA7213_LINE_CTRL,
1637                             DA7213_GAIN_RAMP_EN, DA7213_GAIN_RAMP_EN);
1638 
1639         /*
1640          * There are two separate control bits for input and output mixers as
1641          * well as headphone and line outs.
1642          * One to enable corresponding amplifier and other to enable its
1643          * output. As amplifier bits are related to power control, they are
1644          * being managed by DAPM while other (non power related) bits are
1645          * enabled here
1646          */
1647         snd_soc_update_bits(codec, DA7213_MIXIN_L_CTRL,
1648                             DA7213_MIXIN_MIX_EN, DA7213_MIXIN_MIX_EN);
1649         snd_soc_update_bits(codec, DA7213_MIXIN_R_CTRL,
1650                             DA7213_MIXIN_MIX_EN, DA7213_MIXIN_MIX_EN);
1651 
1652         snd_soc_update_bits(codec, DA7213_MIXOUT_L_CTRL,
1653                             DA7213_MIXOUT_MIX_EN, DA7213_MIXOUT_MIX_EN);
1654         snd_soc_update_bits(codec, DA7213_MIXOUT_R_CTRL,
1655                             DA7213_MIXOUT_MIX_EN, DA7213_MIXOUT_MIX_EN);
1656 
1657         snd_soc_update_bits(codec, DA7213_HP_L_CTRL,
1658                             DA7213_HP_AMP_OE, DA7213_HP_AMP_OE);
1659         snd_soc_update_bits(codec, DA7213_HP_R_CTRL,
1660                             DA7213_HP_AMP_OE, DA7213_HP_AMP_OE);
1661 
1662         snd_soc_update_bits(codec, DA7213_LINE_CTRL,
1663                             DA7213_LINE_AMP_OE, DA7213_LINE_AMP_OE);
1664 
1665         /* Handle DT/Platform data */
1666         if (codec->dev->of_node)
1667                 da7213->pdata = da7213_of_to_pdata(codec);
1668         else
1669                 da7213->pdata = dev_get_platdata(codec->dev);
1670 
1671         /* Set platform data values */
1672         if (da7213->pdata) {
1673                 struct da7213_platform_data *pdata = da7213->pdata;
1674                 u8 micbias_lvl = 0, dmic_cfg = 0;
1675 
1676                 /* Set Mic Bias voltages */
1677                 switch (pdata->micbias1_lvl) {
1678                 case DA7213_MICBIAS_1_6V:
1679                 case DA7213_MICBIAS_2_2V:
1680                 case DA7213_MICBIAS_2_5V:
1681                 case DA7213_MICBIAS_3_0V:
1682                         micbias_lvl |= (pdata->micbias1_lvl <<
1683                                         DA7213_MICBIAS1_LEVEL_SHIFT);
1684                         break;
1685                 }
1686                 switch (pdata->micbias2_lvl) {
1687                 case DA7213_MICBIAS_1_6V:
1688                 case DA7213_MICBIAS_2_2V:
1689                 case DA7213_MICBIAS_2_5V:
1690                 case DA7213_MICBIAS_3_0V:
1691                         micbias_lvl |= (pdata->micbias2_lvl <<
1692                                          DA7213_MICBIAS2_LEVEL_SHIFT);
1693                         break;
1694                 }
1695                 snd_soc_update_bits(codec, DA7213_MICBIAS_CTRL,
1696                                     DA7213_MICBIAS1_LEVEL_MASK |
1697                                     DA7213_MICBIAS2_LEVEL_MASK, micbias_lvl);
1698 
1699                 /* Set DMIC configuration */
1700                 switch (pdata->dmic_data_sel) {
1701                 case DA7213_DMIC_DATA_LFALL_RRISE:
1702                 case DA7213_DMIC_DATA_LRISE_RFALL:
1703                         dmic_cfg |= (pdata->dmic_data_sel <<
1704                                      DA7213_DMIC_DATA_SEL_SHIFT);
1705                         break;
1706                 }
1707                 switch (pdata->dmic_samplephase) {
1708                 case DA7213_DMIC_SAMPLE_ON_CLKEDGE:
1709                 case DA7213_DMIC_SAMPLE_BETWEEN_CLKEDGE:
1710                         dmic_cfg |= (pdata->dmic_samplephase <<
1711                                      DA7213_DMIC_SAMPLEPHASE_SHIFT);
1712                         break;
1713                 }
1714                 switch (pdata->dmic_clk_rate) {
1715                 case DA7213_DMIC_CLK_3_0MHZ:
1716                 case DA7213_DMIC_CLK_1_5MHZ:
1717                         dmic_cfg |= (pdata->dmic_clk_rate <<
1718                                      DA7213_DMIC_CLK_RATE_SHIFT);
1719                         break;
1720                 }
1721                 snd_soc_update_bits(codec, DA7213_MIC_CONFIG,
1722                                     DA7213_DMIC_DATA_SEL_MASK |
1723                                     DA7213_DMIC_SAMPLEPHASE_MASK |
1724                                     DA7213_DMIC_CLK_RATE_MASK, dmic_cfg);
1725         }
1726 
1727         /* Check if MCLK provided */
1728         da7213->mclk = devm_clk_get(codec->dev, "mclk");
1729         if (IS_ERR(da7213->mclk)) {
1730                 if (PTR_ERR(da7213->mclk) != -ENOENT)
1731                         return PTR_ERR(da7213->mclk);
1732                 else
1733                         da7213->mclk = NULL;
1734         }
1735 
1736         return 0;
1737 }
1738 
1739 static struct snd_soc_codec_driver soc_codec_dev_da7213 = {
1740         .probe                  = da7213_probe,
1741         .set_bias_level         = da7213_set_bias_level,
1742 
1743         .controls               = da7213_snd_controls,
1744         .num_controls           = ARRAY_SIZE(da7213_snd_controls),
1745 
1746         .dapm_widgets           = da7213_dapm_widgets,
1747         .num_dapm_widgets       = ARRAY_SIZE(da7213_dapm_widgets),
1748         .dapm_routes            = da7213_audio_map,
1749         .num_dapm_routes        = ARRAY_SIZE(da7213_audio_map),
1750 };
1751 
1752 static const struct regmap_config da7213_regmap_config = {
1753         .reg_bits = 8,
1754         .val_bits = 8,
1755 
1756         .reg_defaults = da7213_reg_defaults,
1757         .num_reg_defaults = ARRAY_SIZE(da7213_reg_defaults),
1758         .volatile_reg = da7213_volatile_register,
1759         .cache_type = REGCACHE_RBTREE,
1760 };
1761 
1762 static int da7213_i2c_probe(struct i2c_client *i2c,
1763                             const struct i2c_device_id *id)
1764 {
1765         struct da7213_priv *da7213;
1766         int ret;
1767 
1768         da7213 = devm_kzalloc(&i2c->dev, sizeof(struct da7213_priv),
1769                               GFP_KERNEL);
1770         if (!da7213)
1771                 return -ENOMEM;
1772 
1773         i2c_set_clientdata(i2c, da7213);
1774 
1775         da7213->regmap = devm_regmap_init_i2c(i2c, &da7213_regmap_config);
1776         if (IS_ERR(da7213->regmap)) {
1777                 ret = PTR_ERR(da7213->regmap);
1778                 dev_err(&i2c->dev, "regmap_init() failed: %d\n", ret);
1779                 return ret;
1780         }
1781 
1782         ret = snd_soc_register_codec(&i2c->dev,
1783                         &soc_codec_dev_da7213, &da7213_dai, 1);
1784         if (ret < 0) {
1785                 dev_err(&i2c->dev, "Failed to register da7213 codec: %d\n",
1786                         ret);
1787         }
1788         return ret;
1789 }
1790 
1791 static int da7213_remove(struct i2c_client *client)
1792 {
1793         snd_soc_unregister_codec(&client->dev);
1794         return 0;
1795 }
1796 
1797 static const struct i2c_device_id da7213_i2c_id[] = {
1798         { "da7213", 0 },
1799         { }
1800 };
1801 MODULE_DEVICE_TABLE(i2c, da7213_i2c_id);
1802 
1803 /* I2C codec control layer */
1804 static struct i2c_driver da7213_i2c_driver = {
1805         .driver = {
1806                 .name = "da7213",
1807                 .of_match_table = of_match_ptr(da7213_of_match),
1808         },
1809         .probe          = da7213_i2c_probe,
1810         .remove         = da7213_remove,
1811         .id_table       = da7213_i2c_id,
1812 };
1813 
1814 module_i2c_driver(da7213_i2c_driver);
1815 
1816 MODULE_DESCRIPTION("ASoC DA7213 Codec driver");
1817 MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com>");
1818 MODULE_LICENSE("GPL");
1819 

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