xref: /openbmc/linux/sound/soc/codecs/da7219.c (revision bbecb07f)
1 /*
2  * da7219.c - DA7219 ALSA SoC Codec Driver
3  *
4  * Copyright (c) 2015 Dialog Semiconductor
5  *
6  * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
7  *
8  * This program is free software; you can redistribute  it and/or modify it
9  * under  the terms of  the GNU General  Public License as published by the
10  * Free Software Foundation;  either version 2 of the  License, or (at your
11  * option) any later version.
12  */
13 
14 #include <linux/acpi.h>
15 #include <linux/clk.h>
16 #include <linux/i2c.h>
17 #include <linux/of_device.h>
18 #include <linux/property.h>
19 #include <linux/regmap.h>
20 #include <linux/slab.h>
21 #include <linux/pm.h>
22 #include <linux/module.h>
23 #include <linux/delay.h>
24 #include <linux/regulator/consumer.h>
25 #include <sound/pcm.h>
26 #include <sound/pcm_params.h>
27 #include <sound/soc.h>
28 #include <sound/soc-dapm.h>
29 #include <sound/initval.h>
30 #include <sound/tlv.h>
31 #include <asm/div64.h>
32 
33 #include <sound/da7219.h>
34 #include "da7219.h"
35 #include "da7219-aad.h"
36 
37 
38 /*
39  * TLVs and Enums
40  */
41 
42 /* Input TLVs */
43 static const DECLARE_TLV_DB_SCALE(da7219_mic_gain_tlv, -600, 600, 0);
44 static const DECLARE_TLV_DB_SCALE(da7219_mixin_gain_tlv, -450, 150, 0);
45 static const DECLARE_TLV_DB_SCALE(da7219_adc_dig_gain_tlv, -8325, 75, 0);
46 static const DECLARE_TLV_DB_SCALE(da7219_alc_threshold_tlv, -9450, 150, 0);
47 static const DECLARE_TLV_DB_SCALE(da7219_alc_gain_tlv, 0, 600, 0);
48 static const DECLARE_TLV_DB_SCALE(da7219_alc_ana_gain_tlv, 0, 600, 0);
49 static const DECLARE_TLV_DB_SCALE(da7219_sidetone_gain_tlv, -4200, 300, 0);
50 static const DECLARE_TLV_DB_SCALE(da7219_tonegen_gain_tlv, -4500, 300, 0);
51 
52 /* Output TLVs */
53 static const DECLARE_TLV_DB_SCALE(da7219_dac_eq_band_tlv, -1050, 150, 0);
54 
55 static const DECLARE_TLV_DB_RANGE(da7219_dac_dig_gain_tlv,
56 	0x0, 0x07, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 1),
57 	/* -77.25dB to 12dB */
58 	0x08, 0x7f, TLV_DB_SCALE_ITEM(-7725, 75, 0)
59 );
60 
61 static const DECLARE_TLV_DB_SCALE(da7219_dac_ng_threshold_tlv, -10200, 600, 0);
62 static const DECLARE_TLV_DB_SCALE(da7219_hp_gain_tlv, -5700, 100, 0);
63 
64 /* Input Enums */
65 static const char * const da7219_alc_attack_rate_txt[] = {
66 	"7.33/fs", "14.66/fs", "29.32/fs", "58.64/fs", "117.3/fs", "234.6/fs",
67 	"469.1/fs", "938.2/fs", "1876/fs", "3753/fs", "7506/fs", "15012/fs",
68 	"30024/fs"
69 };
70 
71 static const struct soc_enum da7219_alc_attack_rate =
72 	SOC_ENUM_SINGLE(DA7219_ALC_CTRL2, DA7219_ALC_ATTACK_SHIFT,
73 			DA7219_ALC_ATTACK_MAX, da7219_alc_attack_rate_txt);
74 
75 static const char * const da7219_alc_release_rate_txt[] = {
76 	"28.66/fs", "57.33/fs", "114.6/fs", "229.3/fs", "458.6/fs", "917.1/fs",
77 	"1834/fs", "3668/fs", "7337/fs", "14674/fs", "29348/fs"
78 };
79 
80 static const struct soc_enum da7219_alc_release_rate =
81 	SOC_ENUM_SINGLE(DA7219_ALC_CTRL2, DA7219_ALC_RELEASE_SHIFT,
82 			DA7219_ALC_RELEASE_MAX, da7219_alc_release_rate_txt);
83 
84 static const char * const da7219_alc_hold_time_txt[] = {
85 	"62/fs", "124/fs", "248/fs", "496/fs", "992/fs", "1984/fs", "3968/fs",
86 	"7936/fs", "15872/fs", "31744/fs", "63488/fs", "126976/fs",
87 	"253952/fs", "507904/fs", "1015808/fs", "2031616/fs"
88 };
89 
90 static const struct soc_enum da7219_alc_hold_time =
91 	SOC_ENUM_SINGLE(DA7219_ALC_CTRL3, DA7219_ALC_HOLD_SHIFT,
92 			DA7219_ALC_HOLD_MAX, da7219_alc_hold_time_txt);
93 
94 static const char * const da7219_alc_env_rate_txt[] = {
95 	"1/4", "1/16", "1/256", "1/65536"
96 };
97 
98 static const struct soc_enum da7219_alc_env_attack_rate =
99 	SOC_ENUM_SINGLE(DA7219_ALC_CTRL3, DA7219_ALC_INTEG_ATTACK_SHIFT,
100 			DA7219_ALC_INTEG_MAX, da7219_alc_env_rate_txt);
101 
102 static const struct soc_enum da7219_alc_env_release_rate =
103 	SOC_ENUM_SINGLE(DA7219_ALC_CTRL3, DA7219_ALC_INTEG_RELEASE_SHIFT,
104 			DA7219_ALC_INTEG_MAX, da7219_alc_env_rate_txt);
105 
106 static const char * const da7219_alc_anticlip_step_txt[] = {
107 	"0.034dB/fs", "0.068dB/fs", "0.136dB/fs", "0.272dB/fs"
108 };
109 
110 static const struct soc_enum da7219_alc_anticlip_step =
111 	SOC_ENUM_SINGLE(DA7219_ALC_ANTICLIP_CTRL,
112 			DA7219_ALC_ANTICLIP_STEP_SHIFT,
113 			DA7219_ALC_ANTICLIP_STEP_MAX,
114 			da7219_alc_anticlip_step_txt);
115 
116 /* Input/Output Enums */
117 static const char * const da7219_gain_ramp_rate_txt[] = {
118 	"Nominal Rate * 8", "Nominal Rate", "Nominal Rate / 8",
119 	"Nominal Rate / 16"
120 };
121 
122 static const struct soc_enum da7219_gain_ramp_rate =
123 	SOC_ENUM_SINGLE(DA7219_GAIN_RAMP_CTRL, DA7219_GAIN_RAMP_RATE_SHIFT,
124 			DA7219_GAIN_RAMP_RATE_MAX, da7219_gain_ramp_rate_txt);
125 
126 static const char * const da7219_hpf_mode_txt[] = {
127 	"Disabled", "Audio", "Voice"
128 };
129 
130 static const unsigned int da7219_hpf_mode_val[] = {
131 	DA7219_HPF_DISABLED, DA7219_HPF_AUDIO_EN, DA7219_HPF_VOICE_EN,
132 };
133 
134 static const struct soc_enum da7219_adc_hpf_mode =
135 	SOC_VALUE_ENUM_SINGLE(DA7219_ADC_FILTERS1, DA7219_HPF_MODE_SHIFT,
136 			      DA7219_HPF_MODE_MASK, DA7219_HPF_MODE_MAX,
137 			      da7219_hpf_mode_txt, da7219_hpf_mode_val);
138 
139 static const struct soc_enum da7219_dac_hpf_mode =
140 	SOC_VALUE_ENUM_SINGLE(DA7219_DAC_FILTERS1, DA7219_HPF_MODE_SHIFT,
141 			      DA7219_HPF_MODE_MASK, DA7219_HPF_MODE_MAX,
142 			      da7219_hpf_mode_txt, da7219_hpf_mode_val);
143 
144 static const char * const da7219_audio_hpf_corner_txt[] = {
145 	"2Hz", "4Hz", "8Hz", "16Hz"
146 };
147 
148 static const struct soc_enum da7219_adc_audio_hpf_corner =
149 	SOC_ENUM_SINGLE(DA7219_ADC_FILTERS1,
150 			DA7219_ADC_AUDIO_HPF_CORNER_SHIFT,
151 			DA7219_AUDIO_HPF_CORNER_MAX,
152 			da7219_audio_hpf_corner_txt);
153 
154 static const struct soc_enum da7219_dac_audio_hpf_corner =
155 	SOC_ENUM_SINGLE(DA7219_DAC_FILTERS1,
156 			DA7219_DAC_AUDIO_HPF_CORNER_SHIFT,
157 			DA7219_AUDIO_HPF_CORNER_MAX,
158 			da7219_audio_hpf_corner_txt);
159 
160 static const char * const da7219_voice_hpf_corner_txt[] = {
161 	"2.5Hz", "25Hz", "50Hz", "100Hz", "150Hz", "200Hz", "300Hz", "400Hz"
162 };
163 
164 static const struct soc_enum da7219_adc_voice_hpf_corner =
165 	SOC_ENUM_SINGLE(DA7219_ADC_FILTERS1,
166 			DA7219_ADC_VOICE_HPF_CORNER_SHIFT,
167 			DA7219_VOICE_HPF_CORNER_MAX,
168 			da7219_voice_hpf_corner_txt);
169 
170 static const struct soc_enum da7219_dac_voice_hpf_corner =
171 	SOC_ENUM_SINGLE(DA7219_DAC_FILTERS1,
172 			DA7219_DAC_VOICE_HPF_CORNER_SHIFT,
173 			DA7219_VOICE_HPF_CORNER_MAX,
174 			da7219_voice_hpf_corner_txt);
175 
176 static const char * const da7219_tonegen_dtmf_key_txt[] = {
177 	"0", "1", "2", "3", "4", "5", "6", "7", "8", "9", "A", "B", "C", "D",
178 	"*", "#"
179 };
180 
181 static const struct soc_enum da7219_tonegen_dtmf_key =
182 	SOC_ENUM_SINGLE(DA7219_TONE_GEN_CFG1, DA7219_DTMF_REG_SHIFT,
183 			DA7219_DTMF_REG_MAX, da7219_tonegen_dtmf_key_txt);
184 
185 static const char * const da7219_tonegen_swg_sel_txt[] = {
186 	"Sum", "SWG1", "SWG2", "SWG1_1-Cos"
187 };
188 
189 static const struct soc_enum da7219_tonegen_swg_sel =
190 	SOC_ENUM_SINGLE(DA7219_TONE_GEN_CFG2, DA7219_SWG_SEL_SHIFT,
191 			DA7219_SWG_SEL_MAX, da7219_tonegen_swg_sel_txt);
192 
193 /* Output Enums */
194 static const char * const da7219_dac_softmute_rate_txt[] = {
195 	"1 Sample", "2 Samples", "4 Samples", "8 Samples", "16 Samples",
196 	"32 Samples", "64 Samples"
197 };
198 
199 static const struct soc_enum da7219_dac_softmute_rate =
200 	SOC_ENUM_SINGLE(DA7219_DAC_FILTERS5, DA7219_DAC_SOFTMUTE_RATE_SHIFT,
201 			DA7219_DAC_SOFTMUTE_RATE_MAX,
202 			da7219_dac_softmute_rate_txt);
203 
204 static const char * const da7219_dac_ng_setup_time_txt[] = {
205 	"256 Samples", "512 Samples", "1024 Samples", "2048 Samples"
206 };
207 
208 static const struct soc_enum da7219_dac_ng_setup_time =
209 	SOC_ENUM_SINGLE(DA7219_DAC_NG_SETUP_TIME,
210 			DA7219_DAC_NG_SETUP_TIME_SHIFT,
211 			DA7219_DAC_NG_SETUP_TIME_MAX,
212 			da7219_dac_ng_setup_time_txt);
213 
214 static const char * const da7219_dac_ng_rampup_txt[] = {
215 	"0.22ms/dB", "0.0138ms/dB"
216 };
217 
218 static const struct soc_enum da7219_dac_ng_rampup_rate =
219 	SOC_ENUM_SINGLE(DA7219_DAC_NG_SETUP_TIME,
220 			DA7219_DAC_NG_RAMPUP_RATE_SHIFT,
221 			DA7219_DAC_NG_RAMP_RATE_MAX,
222 			da7219_dac_ng_rampup_txt);
223 
224 static const char * const da7219_dac_ng_rampdown_txt[] = {
225 	"0.88ms/dB", "14.08ms/dB"
226 };
227 
228 static const struct soc_enum da7219_dac_ng_rampdown_rate =
229 	SOC_ENUM_SINGLE(DA7219_DAC_NG_SETUP_TIME,
230 			DA7219_DAC_NG_RAMPDN_RATE_SHIFT,
231 			DA7219_DAC_NG_RAMP_RATE_MAX,
232 			da7219_dac_ng_rampdown_txt);
233 
234 
235 static const char * const da7219_cp_track_mode_txt[] = {
236 	"Largest Volume", "DAC Volume", "Signal Magnitude"
237 };
238 
239 static const unsigned int da7219_cp_track_mode_val[] = {
240 	DA7219_CP_MCHANGE_LARGEST_VOL, DA7219_CP_MCHANGE_DAC_VOL,
241 	DA7219_CP_MCHANGE_SIG_MAG
242 };
243 
244 static const struct soc_enum da7219_cp_track_mode =
245 	SOC_VALUE_ENUM_SINGLE(DA7219_CP_CTRL, DA7219_CP_MCHANGE_SHIFT,
246 			      DA7219_CP_MCHANGE_REL_MASK, DA7219_CP_MCHANGE_MAX,
247 			      da7219_cp_track_mode_txt,
248 			      da7219_cp_track_mode_val);
249 
250 
251 /*
252  * Control Functions
253  */
254 
255 /* Locked Kcontrol calls */
256 static int da7219_volsw_locked_get(struct snd_kcontrol *kcontrol,
257 				   struct snd_ctl_elem_value *ucontrol)
258 {
259 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
260 	struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
261 	int ret;
262 
263 	mutex_lock(&da7219->ctrl_lock);
264 	ret = snd_soc_get_volsw(kcontrol, ucontrol);
265 	mutex_unlock(&da7219->ctrl_lock);
266 
267 	return ret;
268 }
269 
270 static int da7219_volsw_locked_put(struct snd_kcontrol *kcontrol,
271 				   struct snd_ctl_elem_value *ucontrol)
272 {
273 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
274 	struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
275 	int ret;
276 
277 	mutex_lock(&da7219->ctrl_lock);
278 	ret = snd_soc_put_volsw(kcontrol, ucontrol);
279 	mutex_unlock(&da7219->ctrl_lock);
280 
281 	return ret;
282 }
283 
284 static int da7219_enum_locked_get(struct snd_kcontrol *kcontrol,
285 				struct snd_ctl_elem_value *ucontrol)
286 {
287 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
288 	struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
289 	int ret;
290 
291 	mutex_lock(&da7219->ctrl_lock);
292 	ret = snd_soc_get_enum_double(kcontrol, ucontrol);
293 	mutex_unlock(&da7219->ctrl_lock);
294 
295 	return ret;
296 }
297 
298 static int da7219_enum_locked_put(struct snd_kcontrol *kcontrol,
299 				struct snd_ctl_elem_value *ucontrol)
300 {
301 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
302 	struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
303 	int ret;
304 
305 	mutex_lock(&da7219->ctrl_lock);
306 	ret = snd_soc_put_enum_double(kcontrol, ucontrol);
307 	mutex_unlock(&da7219->ctrl_lock);
308 
309 	return ret;
310 }
311 
312 /* ALC */
313 static void da7219_alc_calib(struct snd_soc_codec *codec)
314 {
315 	u8 mic_ctrl, mixin_ctrl, adc_ctrl, calib_ctrl;
316 
317 	/* Save current state of mic control register */
318 	mic_ctrl = snd_soc_read(codec, DA7219_MIC_1_CTRL);
319 
320 	/* Save current state of input mixer control register */
321 	mixin_ctrl = snd_soc_read(codec, DA7219_MIXIN_L_CTRL);
322 
323 	/* Save current state of input ADC control register */
324 	adc_ctrl = snd_soc_read(codec, DA7219_ADC_L_CTRL);
325 
326 	/* Enable then Mute MIC PGAs */
327 	snd_soc_update_bits(codec, DA7219_MIC_1_CTRL, DA7219_MIC_1_AMP_EN_MASK,
328 			    DA7219_MIC_1_AMP_EN_MASK);
329 	snd_soc_update_bits(codec, DA7219_MIC_1_CTRL,
330 			    DA7219_MIC_1_AMP_MUTE_EN_MASK,
331 			    DA7219_MIC_1_AMP_MUTE_EN_MASK);
332 
333 	/* Enable input mixers unmuted */
334 	snd_soc_update_bits(codec, DA7219_MIXIN_L_CTRL,
335 			    DA7219_MIXIN_L_AMP_EN_MASK |
336 			    DA7219_MIXIN_L_AMP_MUTE_EN_MASK,
337 			    DA7219_MIXIN_L_AMP_EN_MASK);
338 
339 	/* Enable input filters unmuted */
340 	snd_soc_update_bits(codec, DA7219_ADC_L_CTRL,
341 			    DA7219_ADC_L_MUTE_EN_MASK | DA7219_ADC_L_EN_MASK,
342 			    DA7219_ADC_L_EN_MASK);
343 
344 	/* Perform auto calibration */
345 	snd_soc_update_bits(codec, DA7219_ALC_CTRL1,
346 			    DA7219_ALC_AUTO_CALIB_EN_MASK,
347 			    DA7219_ALC_AUTO_CALIB_EN_MASK);
348 	do {
349 		calib_ctrl = snd_soc_read(codec, DA7219_ALC_CTRL1);
350 	} while (calib_ctrl & DA7219_ALC_AUTO_CALIB_EN_MASK);
351 
352 	/* If auto calibration fails, disable DC offset, hybrid ALC */
353 	if (calib_ctrl & DA7219_ALC_CALIB_OVERFLOW_MASK) {
354 		dev_warn(codec->dev,
355 			 "ALC auto calibration failed with overflow\n");
356 		snd_soc_update_bits(codec, DA7219_ALC_CTRL1,
357 				    DA7219_ALC_OFFSET_EN_MASK |
358 				    DA7219_ALC_SYNC_MODE_MASK, 0);
359 	} else {
360 		/* Enable DC offset cancellation, hybrid mode */
361 		snd_soc_update_bits(codec, DA7219_ALC_CTRL1,
362 				    DA7219_ALC_OFFSET_EN_MASK |
363 				    DA7219_ALC_SYNC_MODE_MASK,
364 				    DA7219_ALC_OFFSET_EN_MASK |
365 				    DA7219_ALC_SYNC_MODE_MASK);
366 	}
367 
368 	/* Restore input filter control register to original state */
369 	snd_soc_write(codec, DA7219_ADC_L_CTRL, adc_ctrl);
370 
371 	/* Restore input mixer control registers to original state */
372 	snd_soc_write(codec, DA7219_MIXIN_L_CTRL, mixin_ctrl);
373 
374 	/* Restore MIC control registers to original states */
375 	snd_soc_write(codec, DA7219_MIC_1_CTRL, mic_ctrl);
376 }
377 
378 static int da7219_mixin_gain_put(struct snd_kcontrol *kcontrol,
379 				 struct snd_ctl_elem_value *ucontrol)
380 {
381 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
382 	struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
383 	int ret;
384 
385 	ret = snd_soc_put_volsw(kcontrol, ucontrol);
386 
387 	/*
388 	 * If ALC in operation and value of control has been updated,
389 	 * make sure calibrated offsets are updated.
390 	 */
391 	if ((ret == 1) && (da7219->alc_en))
392 		da7219_alc_calib(codec);
393 
394 	return ret;
395 }
396 
397 static int da7219_alc_sw_put(struct snd_kcontrol *kcontrol,
398 			     struct snd_ctl_elem_value *ucontrol)
399 {
400 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
401 	struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
402 
403 
404 	/* Force ALC offset calibration if enabling ALC */
405 	if ((ucontrol->value.integer.value[0]) && (!da7219->alc_en)) {
406 		da7219_alc_calib(codec);
407 		da7219->alc_en = true;
408 	} else {
409 		da7219->alc_en = false;
410 	}
411 
412 	return snd_soc_put_volsw(kcontrol, ucontrol);
413 }
414 
415 /* ToneGen */
416 static int da7219_tonegen_freq_get(struct snd_kcontrol *kcontrol,
417 				   struct snd_ctl_elem_value *ucontrol)
418 {
419 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
420 	struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
421 	struct soc_mixer_control *mixer_ctrl =
422 		(struct soc_mixer_control *) kcontrol->private_value;
423 	unsigned int reg = mixer_ctrl->reg;
424 	u16 val;
425 	int ret;
426 
427 	mutex_lock(&da7219->ctrl_lock);
428 	ret = regmap_raw_read(da7219->regmap, reg, &val, sizeof(val));
429 	mutex_unlock(&da7219->ctrl_lock);
430 
431 	if (ret)
432 		return ret;
433 
434 	/*
435 	 * Frequency value spans two 8-bit registers, lower then upper byte.
436 	 * Therefore we need to convert to host endianness here.
437 	 */
438 	ucontrol->value.integer.value[0] = le16_to_cpu(val);
439 
440 	return 0;
441 }
442 
443 static int da7219_tonegen_freq_put(struct snd_kcontrol *kcontrol,
444 				   struct snd_ctl_elem_value *ucontrol)
445 {
446 	struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
447 	struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
448 	struct soc_mixer_control *mixer_ctrl =
449 		(struct soc_mixer_control *) kcontrol->private_value;
450 	unsigned int reg = mixer_ctrl->reg;
451 	u16 val;
452 	int ret;
453 
454 	/*
455 	 * Frequency value spans two 8-bit registers, lower then upper byte.
456 	 * Therefore we need to convert to little endian here to align with
457 	 * HW registers.
458 	 */
459 	val = cpu_to_le16(ucontrol->value.integer.value[0]);
460 
461 	mutex_lock(&da7219->ctrl_lock);
462 	ret = regmap_raw_write(da7219->regmap, reg, &val, sizeof(val));
463 	mutex_unlock(&da7219->ctrl_lock);
464 
465 	return ret;
466 }
467 
468 
469 /*
470  * KControls
471  */
472 
473 static const struct snd_kcontrol_new da7219_snd_controls[] = {
474 	/* Mics */
475 	SOC_SINGLE_TLV("Mic Volume", DA7219_MIC_1_GAIN,
476 		       DA7219_MIC_1_AMP_GAIN_SHIFT, DA7219_MIC_1_AMP_GAIN_MAX,
477 		       DA7219_NO_INVERT, da7219_mic_gain_tlv),
478 	SOC_SINGLE("Mic Switch", DA7219_MIC_1_CTRL,
479 		   DA7219_MIC_1_AMP_MUTE_EN_SHIFT, DA7219_SWITCH_EN_MAX,
480 		   DA7219_INVERT),
481 
482 	/* Mixer Input */
483 	SOC_SINGLE_EXT_TLV("Mixin Volume", DA7219_MIXIN_L_GAIN,
484 			   DA7219_MIXIN_L_AMP_GAIN_SHIFT,
485 			   DA7219_MIXIN_L_AMP_GAIN_MAX, DA7219_NO_INVERT,
486 			   snd_soc_get_volsw, da7219_mixin_gain_put,
487 			   da7219_mixin_gain_tlv),
488 	SOC_SINGLE("Mixin Switch", DA7219_MIXIN_L_CTRL,
489 		   DA7219_MIXIN_L_AMP_MUTE_EN_SHIFT, DA7219_SWITCH_EN_MAX,
490 		   DA7219_INVERT),
491 	SOC_SINGLE("Mixin Gain Ramp Switch", DA7219_MIXIN_L_CTRL,
492 		   DA7219_MIXIN_L_AMP_RAMP_EN_SHIFT, DA7219_SWITCH_EN_MAX,
493 		   DA7219_NO_INVERT),
494 	SOC_SINGLE("Mixin ZC Gain Switch", DA7219_MIXIN_L_CTRL,
495 		   DA7219_MIXIN_L_AMP_ZC_EN_SHIFT, DA7219_SWITCH_EN_MAX,
496 		   DA7219_NO_INVERT),
497 
498 	/* ADC */
499 	SOC_SINGLE_TLV("Capture Digital Volume", DA7219_ADC_L_GAIN,
500 		       DA7219_ADC_L_DIGITAL_GAIN_SHIFT,
501 		       DA7219_ADC_L_DIGITAL_GAIN_MAX, DA7219_NO_INVERT,
502 		       da7219_adc_dig_gain_tlv),
503 	SOC_SINGLE("Capture Digital Switch", DA7219_ADC_L_CTRL,
504 		   DA7219_ADC_L_MUTE_EN_SHIFT, DA7219_SWITCH_EN_MAX,
505 		   DA7219_INVERT),
506 	SOC_SINGLE("Capture Digital Gain Ramp Switch", DA7219_ADC_L_CTRL,
507 		   DA7219_ADC_L_RAMP_EN_SHIFT, DA7219_SWITCH_EN_MAX,
508 		   DA7219_NO_INVERT),
509 
510 	/* ALC */
511 	SOC_ENUM("ALC Attack Rate", da7219_alc_attack_rate),
512 	SOC_ENUM("ALC Release Rate", da7219_alc_release_rate),
513 	SOC_ENUM("ALC Hold Time", da7219_alc_hold_time),
514 	SOC_ENUM("ALC Envelope Attack Rate", da7219_alc_env_attack_rate),
515 	SOC_ENUM("ALC Envelope Release Rate", da7219_alc_env_release_rate),
516 	SOC_SINGLE_TLV("ALC Noise Threshold", DA7219_ALC_NOISE,
517 		       DA7219_ALC_NOISE_SHIFT, DA7219_ALC_THRESHOLD_MAX,
518 		       DA7219_INVERT, da7219_alc_threshold_tlv),
519 	SOC_SINGLE_TLV("ALC Min Threshold", DA7219_ALC_TARGET_MIN,
520 		       DA7219_ALC_THRESHOLD_MIN_SHIFT, DA7219_ALC_THRESHOLD_MAX,
521 		       DA7219_INVERT, da7219_alc_threshold_tlv),
522 	SOC_SINGLE_TLV("ALC Max Threshold", DA7219_ALC_TARGET_MAX,
523 		       DA7219_ALC_THRESHOLD_MAX_SHIFT, DA7219_ALC_THRESHOLD_MAX,
524 		       DA7219_INVERT, da7219_alc_threshold_tlv),
525 	SOC_SINGLE_TLV("ALC Max Attenuation", DA7219_ALC_GAIN_LIMITS,
526 		       DA7219_ALC_ATTEN_MAX_SHIFT, DA7219_ALC_ATTEN_GAIN_MAX,
527 		       DA7219_NO_INVERT, da7219_alc_gain_tlv),
528 	SOC_SINGLE_TLV("ALC Max Volume", DA7219_ALC_GAIN_LIMITS,
529 		       DA7219_ALC_GAIN_MAX_SHIFT, DA7219_ALC_ATTEN_GAIN_MAX,
530 		       DA7219_NO_INVERT, da7219_alc_gain_tlv),
531 	SOC_SINGLE_RANGE_TLV("ALC Min Analog Volume", DA7219_ALC_ANA_GAIN_LIMITS,
532 			     DA7219_ALC_ANA_GAIN_MIN_SHIFT,
533 			     DA7219_ALC_ANA_GAIN_MIN, DA7219_ALC_ANA_GAIN_MAX,
534 			     DA7219_NO_INVERT, da7219_alc_ana_gain_tlv),
535 	SOC_SINGLE_RANGE_TLV("ALC Max Analog Volume", DA7219_ALC_ANA_GAIN_LIMITS,
536 			     DA7219_ALC_ANA_GAIN_MAX_SHIFT,
537 			     DA7219_ALC_ANA_GAIN_MIN, DA7219_ALC_ANA_GAIN_MAX,
538 			     DA7219_NO_INVERT, da7219_alc_ana_gain_tlv),
539 	SOC_ENUM("ALC Anticlip Step", da7219_alc_anticlip_step),
540 	SOC_SINGLE("ALC Anticlip Switch", DA7219_ALC_ANTICLIP_CTRL,
541 		   DA7219_ALC_ANTIPCLIP_EN_SHIFT, DA7219_SWITCH_EN_MAX,
542 		   DA7219_NO_INVERT),
543 	SOC_SINGLE_EXT("ALC Switch", DA7219_ALC_CTRL1, DA7219_ALC_EN_SHIFT,
544 		       DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT,
545 		       snd_soc_get_volsw, da7219_alc_sw_put),
546 
547 	/* Input High-Pass Filters */
548 	SOC_ENUM("ADC HPF Mode", da7219_adc_hpf_mode),
549 	SOC_ENUM("ADC HPF Corner Audio", da7219_adc_audio_hpf_corner),
550 	SOC_ENUM("ADC HPF Corner Voice", da7219_adc_voice_hpf_corner),
551 
552 	/* Sidetone Filter */
553 	SOC_SINGLE_TLV("Sidetone Volume", DA7219_SIDETONE_GAIN,
554 		       DA7219_SIDETONE_GAIN_SHIFT, DA7219_SIDETONE_GAIN_MAX,
555 		       DA7219_NO_INVERT, da7219_sidetone_gain_tlv),
556 	SOC_SINGLE("Sidetone Switch", DA7219_SIDETONE_CTRL,
557 		   DA7219_SIDETONE_MUTE_EN_SHIFT, DA7219_SWITCH_EN_MAX,
558 		   DA7219_INVERT),
559 
560 	/* Tone Generator */
561 	SOC_SINGLE_EXT_TLV("ToneGen Volume", DA7219_TONE_GEN_CFG2,
562 			   DA7219_TONE_GEN_GAIN_SHIFT, DA7219_TONE_GEN_GAIN_MAX,
563 			   DA7219_NO_INVERT, da7219_volsw_locked_get,
564 			   da7219_volsw_locked_put, da7219_tonegen_gain_tlv),
565 	SOC_ENUM_EXT("ToneGen DTMF Key", da7219_tonegen_dtmf_key,
566 		     da7219_enum_locked_get, da7219_enum_locked_put),
567 	SOC_SINGLE_EXT("ToneGen DTMF Switch", DA7219_TONE_GEN_CFG1,
568 		       DA7219_DTMF_EN_SHIFT, DA7219_SWITCH_EN_MAX,
569 		       DA7219_NO_INVERT, da7219_volsw_locked_get,
570 		       da7219_volsw_locked_put),
571 	SOC_ENUM_EXT("ToneGen Sinewave Gen Type", da7219_tonegen_swg_sel,
572 		     da7219_enum_locked_get, da7219_enum_locked_put),
573 	SOC_SINGLE_EXT("ToneGen Sinewave1 Freq", DA7219_TONE_GEN_FREQ1_L,
574 		       DA7219_FREQ1_L_SHIFT, DA7219_FREQ_MAX, DA7219_NO_INVERT,
575 		       da7219_tonegen_freq_get, da7219_tonegen_freq_put),
576 	SOC_SINGLE_EXT("ToneGen Sinewave2 Freq", DA7219_TONE_GEN_FREQ2_L,
577 		       DA7219_FREQ2_L_SHIFT, DA7219_FREQ_MAX, DA7219_NO_INVERT,
578 		       da7219_tonegen_freq_get, da7219_tonegen_freq_put),
579 	SOC_SINGLE_EXT("ToneGen On Time", DA7219_TONE_GEN_ON_PER,
580 		       DA7219_BEEP_ON_PER_SHIFT, DA7219_BEEP_ON_OFF_MAX,
581 		       DA7219_NO_INVERT, da7219_volsw_locked_get,
582 		       da7219_volsw_locked_put),
583 	SOC_SINGLE("ToneGen Off Time", DA7219_TONE_GEN_OFF_PER,
584 		   DA7219_BEEP_OFF_PER_SHIFT, DA7219_BEEP_ON_OFF_MAX,
585 		   DA7219_NO_INVERT),
586 
587 	/* Gain ramping */
588 	SOC_ENUM("Gain Ramp Rate", da7219_gain_ramp_rate),
589 
590 	/* DAC High-Pass Filter */
591 	SOC_ENUM_EXT("DAC HPF Mode", da7219_dac_hpf_mode,
592 		     da7219_enum_locked_get, da7219_enum_locked_put),
593 	SOC_ENUM("DAC HPF Corner Audio", da7219_dac_audio_hpf_corner),
594 	SOC_ENUM("DAC HPF Corner Voice", da7219_dac_voice_hpf_corner),
595 
596 	/* DAC 5-Band Equaliser */
597 	SOC_SINGLE_TLV("DAC EQ Band1 Volume", DA7219_DAC_FILTERS2,
598 		       DA7219_DAC_EQ_BAND1_SHIFT, DA7219_DAC_EQ_BAND_MAX,
599 		       DA7219_NO_INVERT, da7219_dac_eq_band_tlv),
600 	SOC_SINGLE_TLV("DAC EQ Band2 Volume", DA7219_DAC_FILTERS2,
601 		       DA7219_DAC_EQ_BAND2_SHIFT, DA7219_DAC_EQ_BAND_MAX,
602 		       DA7219_NO_INVERT, da7219_dac_eq_band_tlv),
603 	SOC_SINGLE_TLV("DAC EQ Band3 Volume", DA7219_DAC_FILTERS3,
604 		       DA7219_DAC_EQ_BAND3_SHIFT, DA7219_DAC_EQ_BAND_MAX,
605 		       DA7219_NO_INVERT, da7219_dac_eq_band_tlv),
606 	SOC_SINGLE_TLV("DAC EQ Band4 Volume", DA7219_DAC_FILTERS3,
607 		       DA7219_DAC_EQ_BAND4_SHIFT, DA7219_DAC_EQ_BAND_MAX,
608 		       DA7219_NO_INVERT, da7219_dac_eq_band_tlv),
609 	SOC_SINGLE_TLV("DAC EQ Band5 Volume", DA7219_DAC_FILTERS4,
610 		       DA7219_DAC_EQ_BAND5_SHIFT, DA7219_DAC_EQ_BAND_MAX,
611 		       DA7219_NO_INVERT, da7219_dac_eq_band_tlv),
612 	SOC_SINGLE_EXT("DAC EQ Switch", DA7219_DAC_FILTERS4,
613 		       DA7219_DAC_EQ_EN_SHIFT, DA7219_SWITCH_EN_MAX,
614 		       DA7219_NO_INVERT, da7219_volsw_locked_get,
615 		       da7219_volsw_locked_put),
616 
617 	/* DAC Softmute */
618 	SOC_ENUM("DAC Soft Mute Rate", da7219_dac_softmute_rate),
619 	SOC_SINGLE_EXT("DAC Soft Mute Switch", DA7219_DAC_FILTERS5,
620 		       DA7219_DAC_SOFTMUTE_EN_SHIFT, DA7219_SWITCH_EN_MAX,
621 		       DA7219_NO_INVERT, da7219_volsw_locked_get,
622 		       da7219_volsw_locked_put),
623 
624 	/* DAC Noise Gate */
625 	SOC_ENUM("DAC NG Setup Time", da7219_dac_ng_setup_time),
626 	SOC_ENUM("DAC NG Rampup Rate", da7219_dac_ng_rampup_rate),
627 	SOC_ENUM("DAC NG Rampdown Rate", da7219_dac_ng_rampdown_rate),
628 	SOC_SINGLE_TLV("DAC NG Off Threshold", DA7219_DAC_NG_OFF_THRESH,
629 		       DA7219_DAC_NG_OFF_THRESHOLD_SHIFT,
630 		       DA7219_DAC_NG_THRESHOLD_MAX, DA7219_NO_INVERT,
631 		       da7219_dac_ng_threshold_tlv),
632 	SOC_SINGLE_TLV("DAC NG On Threshold", DA7219_DAC_NG_ON_THRESH,
633 		       DA7219_DAC_NG_ON_THRESHOLD_SHIFT,
634 		       DA7219_DAC_NG_THRESHOLD_MAX, DA7219_NO_INVERT,
635 		       da7219_dac_ng_threshold_tlv),
636 	SOC_SINGLE("DAC NG Switch", DA7219_DAC_NG_CTRL, DA7219_DAC_NG_EN_SHIFT,
637 		   DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),
638 
639 	/* DACs */
640 	SOC_DOUBLE_R_EXT_TLV("Playback Digital Volume", DA7219_DAC_L_GAIN,
641 			     DA7219_DAC_R_GAIN, DA7219_DAC_L_DIGITAL_GAIN_SHIFT,
642 			     DA7219_DAC_DIGITAL_GAIN_MAX, DA7219_NO_INVERT,
643 			     da7219_volsw_locked_get, da7219_volsw_locked_put,
644 			     da7219_dac_dig_gain_tlv),
645 	SOC_DOUBLE_R_EXT("Playback Digital Switch", DA7219_DAC_L_CTRL,
646 			 DA7219_DAC_R_CTRL, DA7219_DAC_L_MUTE_EN_SHIFT,
647 			 DA7219_SWITCH_EN_MAX, DA7219_INVERT,
648 			 da7219_volsw_locked_get, da7219_volsw_locked_put),
649 	SOC_DOUBLE_R("Playback Digital Gain Ramp Switch", DA7219_DAC_L_CTRL,
650 		     DA7219_DAC_R_CTRL, DA7219_DAC_L_RAMP_EN_SHIFT,
651 		     DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),
652 
653 	/* CP */
654 	SOC_ENUM("Charge Pump Track Mode", da7219_cp_track_mode),
655 	SOC_SINGLE("Charge Pump Threshold", DA7219_CP_VOL_THRESHOLD1,
656 		   DA7219_CP_THRESH_VDD2_SHIFT, DA7219_CP_THRESH_VDD2_MAX,
657 		   DA7219_NO_INVERT),
658 
659 	/* Headphones */
660 	SOC_DOUBLE_R_EXT_TLV("Headphone Volume", DA7219_HP_L_GAIN,
661 			     DA7219_HP_R_GAIN, DA7219_HP_L_AMP_GAIN_SHIFT,
662 			     DA7219_HP_AMP_GAIN_MAX, DA7219_NO_INVERT,
663 			     da7219_volsw_locked_get, da7219_volsw_locked_put,
664 			     da7219_hp_gain_tlv),
665 	SOC_DOUBLE_R_EXT("Headphone Switch", DA7219_HP_L_CTRL, DA7219_HP_R_CTRL,
666 			 DA7219_HP_L_AMP_MUTE_EN_SHIFT, DA7219_SWITCH_EN_MAX,
667 			 DA7219_INVERT, da7219_volsw_locked_get,
668 			 da7219_volsw_locked_put),
669 	SOC_DOUBLE_R("Headphone Gain Ramp Switch", DA7219_HP_L_CTRL,
670 		     DA7219_HP_R_CTRL, DA7219_HP_L_AMP_RAMP_EN_SHIFT,
671 		     DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),
672 	SOC_DOUBLE_R("Headphone ZC Gain Switch", DA7219_HP_L_CTRL,
673 		     DA7219_HP_R_CTRL, DA7219_HP_L_AMP_ZC_EN_SHIFT,
674 		     DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),
675 };
676 
677 
678 /*
679  * DAPM Mux Controls
680  */
681 
682 static const char * const da7219_out_sel_txt[] = {
683 	"ADC", "Tone Generator", "DAIL", "DAIR"
684 };
685 
686 static const struct soc_enum da7219_out_dail_sel =
687 	SOC_ENUM_SINGLE(DA7219_DIG_ROUTING_DAI,
688 			DA7219_DAI_L_SRC_SHIFT,
689 			DA7219_OUT_SRC_MAX,
690 			da7219_out_sel_txt);
691 
692 static const struct snd_kcontrol_new da7219_out_dail_sel_mux =
693 	SOC_DAPM_ENUM("Out DAIL Mux", da7219_out_dail_sel);
694 
695 static const struct soc_enum da7219_out_dair_sel =
696 	SOC_ENUM_SINGLE(DA7219_DIG_ROUTING_DAI,
697 			DA7219_DAI_R_SRC_SHIFT,
698 			DA7219_OUT_SRC_MAX,
699 			da7219_out_sel_txt);
700 
701 static const struct snd_kcontrol_new da7219_out_dair_sel_mux =
702 	SOC_DAPM_ENUM("Out DAIR Mux", da7219_out_dair_sel);
703 
704 static const struct soc_enum da7219_out_dacl_sel =
705 	SOC_ENUM_SINGLE(DA7219_DIG_ROUTING_DAC,
706 			DA7219_DAC_L_SRC_SHIFT,
707 			DA7219_OUT_SRC_MAX,
708 			da7219_out_sel_txt);
709 
710 static const struct snd_kcontrol_new da7219_out_dacl_sel_mux =
711 	SOC_DAPM_ENUM("Out DACL Mux", da7219_out_dacl_sel);
712 
713 static const struct soc_enum da7219_out_dacr_sel =
714 	SOC_ENUM_SINGLE(DA7219_DIG_ROUTING_DAC,
715 			DA7219_DAC_R_SRC_SHIFT,
716 			DA7219_OUT_SRC_MAX,
717 			da7219_out_sel_txt);
718 
719 static const struct snd_kcontrol_new da7219_out_dacr_sel_mux =
720 	SOC_DAPM_ENUM("Out DACR Mux", da7219_out_dacr_sel);
721 
722 
723 /*
724  * DAPM Mixer Controls
725  */
726 
727 static const struct snd_kcontrol_new da7219_mixin_controls[] = {
728 	SOC_DAPM_SINGLE("Mic Switch", DA7219_MIXIN_L_SELECT,
729 			DA7219_MIXIN_L_MIX_SELECT_SHIFT,
730 			DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),
731 };
732 
733 static const struct snd_kcontrol_new da7219_mixout_l_controls[] = {
734 	SOC_DAPM_SINGLE("DACL Switch", DA7219_MIXOUT_L_SELECT,
735 			DA7219_MIXOUT_L_MIX_SELECT_SHIFT,
736 			DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),
737 };
738 
739 static const struct snd_kcontrol_new da7219_mixout_r_controls[] = {
740 	SOC_DAPM_SINGLE("DACR Switch", DA7219_MIXOUT_R_SELECT,
741 			DA7219_MIXOUT_R_MIX_SELECT_SHIFT,
742 			DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),
743 };
744 
745 #define DA7219_DMIX_ST_CTRLS(reg)					\
746 	SOC_DAPM_SINGLE("Out FilterL Switch", reg,			\
747 			DA7219_DMIX_ST_SRC_OUTFILT1L_SHIFT,		\
748 			DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),	\
749 	SOC_DAPM_SINGLE("Out FilterR Switch", reg,			\
750 			DA7219_DMIX_ST_SRC_OUTFILT1R_SHIFT,		\
751 			DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT),	\
752 	SOC_DAPM_SINGLE("Sidetone Switch", reg,				\
753 			DA7219_DMIX_ST_SRC_SIDETONE_SHIFT,		\
754 			DA7219_SWITCH_EN_MAX, DA7219_NO_INVERT)		\
755 
756 static const struct snd_kcontrol_new da7219_st_out_filtl_mix_controls[] = {
757 	DA7219_DMIX_ST_CTRLS(DA7219_DROUTING_ST_OUTFILT_1L),
758 };
759 
760 static const struct snd_kcontrol_new da7219_st_out_filtr_mix_controls[] = {
761 	DA7219_DMIX_ST_CTRLS(DA7219_DROUTING_ST_OUTFILT_1R),
762 };
763 
764 
765 /*
766  * DAPM Events
767  */
768 
769 static int da7219_dai_event(struct snd_soc_dapm_widget *w,
770 			    struct snd_kcontrol *kcontrol, int event)
771 {
772 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
773 	struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
774 	u8 pll_ctrl, pll_status;
775 	int i = 0;
776 	bool srm_lock = false;
777 
778 	switch (event) {
779 	case SND_SOC_DAPM_PRE_PMU:
780 		if (da7219->master)
781 			/* Enable DAI clks for master mode */
782 			snd_soc_update_bits(codec, DA7219_DAI_CLK_MODE,
783 					    DA7219_DAI_CLK_EN_MASK,
784 					    DA7219_DAI_CLK_EN_MASK);
785 
786 		/* PC synchronised to DAI */
787 		snd_soc_update_bits(codec, DA7219_PC_COUNT,
788 				    DA7219_PC_FREERUN_MASK, 0);
789 
790 		/* Slave mode, if SRM not enabled no need for status checks */
791 		pll_ctrl = snd_soc_read(codec, DA7219_PLL_CTRL);
792 		if ((pll_ctrl & DA7219_PLL_MODE_MASK) != DA7219_PLL_MODE_SRM)
793 			return 0;
794 
795 		/* Check SRM has locked */
796 		do {
797 			pll_status = snd_soc_read(codec, DA7219_PLL_SRM_STS);
798 			if (pll_status & DA7219_PLL_SRM_STS_SRM_LOCK) {
799 				srm_lock = true;
800 			} else {
801 				++i;
802 				msleep(50);
803 			}
804 		} while ((i < DA7219_SRM_CHECK_RETRIES) & (!srm_lock));
805 
806 		if (!srm_lock)
807 			dev_warn(codec->dev, "SRM failed to lock\n");
808 
809 		return 0;
810 	case SND_SOC_DAPM_POST_PMD:
811 		/* PC free-running */
812 		snd_soc_update_bits(codec, DA7219_PC_COUNT,
813 				    DA7219_PC_FREERUN_MASK,
814 				    DA7219_PC_FREERUN_MASK);
815 
816 		/* Disable DAI clks if in master mode */
817 		if (da7219->master)
818 			snd_soc_update_bits(codec, DA7219_DAI_CLK_MODE,
819 					    DA7219_DAI_CLK_EN_MASK, 0);
820 		return 0;
821 	default:
822 		return -EINVAL;
823 	}
824 }
825 
826 static int da7219_settling_event(struct snd_soc_dapm_widget *w,
827 				 struct snd_kcontrol *kcontrol, int event)
828 {
829 	switch (event) {
830 	case SND_SOC_DAPM_POST_PMU:
831 	case SND_SOC_DAPM_POST_PMD:
832 		msleep(DA7219_SETTLING_DELAY);
833 		break;
834 	default:
835 		break;
836 	}
837 
838 	return 0;
839 }
840 
841 static int da7219_mixout_event(struct snd_soc_dapm_widget *w,
842 			       struct snd_kcontrol *kcontrol, int event)
843 {
844 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
845 	u8 hp_ctrl, min_gain_mask;
846 
847 	switch (w->reg) {
848 	case DA7219_MIXOUT_L_CTRL:
849 		hp_ctrl = DA7219_HP_L_CTRL;
850 		min_gain_mask = DA7219_HP_L_AMP_MIN_GAIN_EN_MASK;
851 		break;
852 	case DA7219_MIXOUT_R_CTRL:
853 		hp_ctrl = DA7219_HP_R_CTRL;
854 		min_gain_mask = DA7219_HP_R_AMP_MIN_GAIN_EN_MASK;
855 		break;
856 	default:
857 		return -EINVAL;
858 	}
859 
860 	switch (event) {
861 	case SND_SOC_DAPM_PRE_PMD:
862 		/* Enable minimum gain on HP to avoid pops */
863 		snd_soc_update_bits(codec, hp_ctrl, min_gain_mask,
864 				    min_gain_mask);
865 
866 		msleep(DA7219_MIN_GAIN_DELAY);
867 
868 		break;
869 	case SND_SOC_DAPM_POST_PMU:
870 		/* Remove minimum gain on HP */
871 		snd_soc_update_bits(codec, hp_ctrl, min_gain_mask, 0);
872 
873 		break;
874 	}
875 
876 	return 0;
877 }
878 
879 static int da7219_gain_ramp_event(struct snd_soc_dapm_widget *w,
880 				  struct snd_kcontrol *kcontrol, int event)
881 {
882 	struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
883 	struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
884 
885 	switch (event) {
886 	case SND_SOC_DAPM_PRE_PMU:
887 	case SND_SOC_DAPM_PRE_PMD:
888 		/* Ensure nominal gain ramping for DAPM sequence */
889 		da7219->gain_ramp_ctrl =
890 			snd_soc_read(codec, DA7219_GAIN_RAMP_CTRL);
891 		snd_soc_write(codec, DA7219_GAIN_RAMP_CTRL,
892 			      DA7219_GAIN_RAMP_RATE_NOMINAL);
893 		break;
894 	case SND_SOC_DAPM_POST_PMU:
895 	case SND_SOC_DAPM_POST_PMD:
896 		/* Restore previous gain ramp settings */
897 		snd_soc_write(codec, DA7219_GAIN_RAMP_CTRL,
898 			      da7219->gain_ramp_ctrl);
899 		break;
900 	}
901 
902 	return 0;
903 }
904 
905 
906 /*
907  * DAPM Widgets
908  */
909 
910 static const struct snd_soc_dapm_widget da7219_dapm_widgets[] = {
911 	/* Input Supplies */
912 	SND_SOC_DAPM_SUPPLY("Mic Bias", DA7219_MICBIAS_CTRL,
913 			    DA7219_MICBIAS1_EN_SHIFT, DA7219_NO_INVERT,
914 			    NULL, 0),
915 
916 	/* Inputs */
917 	SND_SOC_DAPM_INPUT("MIC"),
918 
919 	/* Input PGAs */
920 	SND_SOC_DAPM_PGA("Mic PGA", DA7219_MIC_1_CTRL,
921 			 DA7219_MIC_1_AMP_EN_SHIFT, DA7219_NO_INVERT,
922 			 NULL, 0),
923 	SND_SOC_DAPM_PGA("Mixin PGA", DA7219_MIXIN_L_CTRL,
924 			 DA7219_MIXIN_L_AMP_EN_SHIFT, DA7219_NO_INVERT,
925 			 NULL, 0),
926 
927 	/* Input Filters */
928 	SND_SOC_DAPM_ADC("ADC", NULL, DA7219_ADC_L_CTRL, DA7219_ADC_L_EN_SHIFT,
929 			 DA7219_NO_INVERT),
930 
931 	/* Tone Generator */
932 	SND_SOC_DAPM_SIGGEN("TONE"),
933 	SND_SOC_DAPM_PGA("Tone Generator", DA7219_TONE_GEN_CFG1,
934 			 DA7219_START_STOPN_SHIFT, DA7219_NO_INVERT, NULL, 0),
935 
936 	/* Sidetone Input */
937 	SND_SOC_DAPM_ADC("Sidetone Filter", NULL, DA7219_SIDETONE_CTRL,
938 			 DA7219_SIDETONE_EN_SHIFT, DA7219_NO_INVERT),
939 
940 	/* Input Mixer Supply */
941 	SND_SOC_DAPM_SUPPLY("Mixer In Supply", DA7219_MIXIN_L_CTRL,
942 			    DA7219_MIXIN_L_MIX_EN_SHIFT, DA7219_NO_INVERT,
943 			    NULL, 0),
944 
945 	/* Input Mixer */
946 	SND_SOC_DAPM_MIXER("Mixer In", SND_SOC_NOPM, 0, 0,
947 			   da7219_mixin_controls,
948 			   ARRAY_SIZE(da7219_mixin_controls)),
949 
950 	/* Input Muxes */
951 	SND_SOC_DAPM_MUX("Out DAIL Mux", SND_SOC_NOPM, 0, 0,
952 			 &da7219_out_dail_sel_mux),
953 	SND_SOC_DAPM_MUX("Out DAIR Mux", SND_SOC_NOPM, 0, 0,
954 			 &da7219_out_dair_sel_mux),
955 
956 	/* DAI Supply */
957 	SND_SOC_DAPM_SUPPLY("DAI", DA7219_DAI_CTRL, DA7219_DAI_EN_SHIFT,
958 			    DA7219_NO_INVERT, da7219_dai_event,
959 			    SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
960 
961 	/* DAI */
962 	SND_SOC_DAPM_AIF_OUT("DAIOUT", "Capture", 0, DA7219_DAI_TDM_CTRL,
963 			     DA7219_DAI_OE_SHIFT, DA7219_NO_INVERT),
964 	SND_SOC_DAPM_AIF_IN("DAIIN", "Playback", 0, SND_SOC_NOPM, 0, 0),
965 
966 	/* Output Muxes */
967 	SND_SOC_DAPM_MUX("Out DACL Mux", SND_SOC_NOPM, 0, 0,
968 			 &da7219_out_dacl_sel_mux),
969 	SND_SOC_DAPM_MUX("Out DACR Mux", SND_SOC_NOPM, 0, 0,
970 			 &da7219_out_dacr_sel_mux),
971 
972 	/* Output Mixers */
973 	SND_SOC_DAPM_MIXER("Mixer Out FilterL", SND_SOC_NOPM, 0, 0,
974 			   da7219_mixout_l_controls,
975 			   ARRAY_SIZE(da7219_mixout_l_controls)),
976 	SND_SOC_DAPM_MIXER("Mixer Out FilterR", SND_SOC_NOPM, 0, 0,
977 			   da7219_mixout_r_controls,
978 			   ARRAY_SIZE(da7219_mixout_r_controls)),
979 
980 	/* Sidetone Mixers */
981 	SND_SOC_DAPM_MIXER("ST Mixer Out FilterL", SND_SOC_NOPM, 0, 0,
982 			   da7219_st_out_filtl_mix_controls,
983 			   ARRAY_SIZE(da7219_st_out_filtl_mix_controls)),
984 	SND_SOC_DAPM_MIXER("ST Mixer Out FilterR", SND_SOC_NOPM, 0,
985 			   0, da7219_st_out_filtr_mix_controls,
986 			   ARRAY_SIZE(da7219_st_out_filtr_mix_controls)),
987 
988 	/* DACs */
989 	SND_SOC_DAPM_DAC_E("DACL", NULL, DA7219_DAC_L_CTRL,
990 			   DA7219_DAC_L_EN_SHIFT, DA7219_NO_INVERT,
991 			   da7219_settling_event,
992 			   SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
993 	SND_SOC_DAPM_DAC_E("DACR", NULL, DA7219_DAC_R_CTRL,
994 			   DA7219_DAC_R_EN_SHIFT, DA7219_NO_INVERT,
995 			   da7219_settling_event,
996 			   SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
997 
998 	/* Output PGAs */
999 	SND_SOC_DAPM_PGA_E("Mixout Left PGA", DA7219_MIXOUT_L_CTRL,
1000 			   DA7219_MIXOUT_L_AMP_EN_SHIFT, DA7219_NO_INVERT,
1001 			   NULL, 0, da7219_mixout_event,
1002 			   SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
1003 	SND_SOC_DAPM_PGA_E("Mixout Right PGA", DA7219_MIXOUT_R_CTRL,
1004 			   DA7219_MIXOUT_R_AMP_EN_SHIFT, DA7219_NO_INVERT,
1005 			   NULL, 0, da7219_mixout_event,
1006 			   SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
1007 	SND_SOC_DAPM_SUPPLY_S("Headphone Left PGA", 1, DA7219_HP_L_CTRL,
1008 			      DA7219_HP_L_AMP_EN_SHIFT, DA7219_NO_INVERT,
1009 			      da7219_settling_event,
1010 			      SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1011 	SND_SOC_DAPM_SUPPLY_S("Headphone Right PGA", 1, DA7219_HP_R_CTRL,
1012 			      DA7219_HP_R_AMP_EN_SHIFT, DA7219_NO_INVERT,
1013 			      da7219_settling_event,
1014 			      SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_POST_PMD),
1015 
1016 	/* Output Supplies */
1017 	SND_SOC_DAPM_SUPPLY_S("Charge Pump", 0, DA7219_CP_CTRL,
1018 			      DA7219_CP_EN_SHIFT, DA7219_NO_INVERT,
1019 			      da7219_settling_event,
1020 			      SND_SOC_DAPM_POST_PMU),
1021 
1022 	/* Outputs */
1023 	SND_SOC_DAPM_OUTPUT("HPL"),
1024 	SND_SOC_DAPM_OUTPUT("HPR"),
1025 
1026 	/* Pre/Post Power */
1027 	SND_SOC_DAPM_PRE("Pre Power Gain Ramp", da7219_gain_ramp_event),
1028 	SND_SOC_DAPM_POST("Post Power Gain Ramp", da7219_gain_ramp_event),
1029 };
1030 
1031 
1032 /*
1033  * DAPM Mux Routes
1034  */
1035 
1036 #define DA7219_OUT_DAI_MUX_ROUTES(name)			\
1037 	{name, "ADC", "Mixer In"},			\
1038 	{name, "Tone Generator", "Tone Generator"},	\
1039 	{name, "DAIL", "DAIOUT"},			\
1040 	{name, "DAIR", "DAIOUT"}
1041 
1042 #define DA7219_OUT_DAC_MUX_ROUTES(name)			\
1043 	{name, "ADC", "Mixer In"},			\
1044 	{name, "Tone Generator", "Tone Generator"},		\
1045 	{name, "DAIL", "DAIIN"},			\
1046 	{name, "DAIR", "DAIIN"}
1047 
1048 /*
1049  * DAPM Mixer Routes
1050  */
1051 
1052 #define DA7219_DMIX_ST_ROUTES(name)				\
1053 	{name, "Out FilterL Switch", "Mixer Out FilterL"},	\
1054 	{name, "Out FilterR Switch", "Mixer Out FilterR"},	\
1055 	{name, "Sidetone Switch", "Sidetone Filter"}
1056 
1057 
1058 /*
1059  * DAPM audio route definition
1060  */
1061 
1062 static const struct snd_soc_dapm_route da7219_audio_map[] = {
1063 	/* Input paths */
1064 	{"MIC", NULL, "Mic Bias"},
1065 	{"Mic PGA", NULL, "MIC"},
1066 	{"Mixin PGA", NULL, "Mic PGA"},
1067 	{"ADC", NULL, "Mixin PGA"},
1068 
1069 	{"Mixer In", NULL, "Mixer In Supply"},
1070 	{"Mixer In", "Mic Switch", "ADC"},
1071 
1072 	{"Sidetone Filter", NULL, "Mixer In"},
1073 
1074 	{"Tone Generator", NULL, "TONE"},
1075 
1076 	DA7219_OUT_DAI_MUX_ROUTES("Out DAIL Mux"),
1077 	DA7219_OUT_DAI_MUX_ROUTES("Out DAIR Mux"),
1078 
1079 	{"DAIOUT", NULL, "Out DAIL Mux"},
1080 	{"DAIOUT", NULL, "Out DAIR Mux"},
1081 	{"DAIOUT", NULL, "DAI"},
1082 
1083 	/* Output paths */
1084 	{"DAIIN", NULL, "DAI"},
1085 
1086 	DA7219_OUT_DAC_MUX_ROUTES("Out DACL Mux"),
1087 	DA7219_OUT_DAC_MUX_ROUTES("Out DACR Mux"),
1088 
1089 	{"Mixer Out FilterL", "DACL Switch", "Out DACL Mux"},
1090 	{"Mixer Out FilterR", "DACR Switch", "Out DACR Mux"},
1091 
1092 	DA7219_DMIX_ST_ROUTES("ST Mixer Out FilterL"),
1093 	DA7219_DMIX_ST_ROUTES("ST Mixer Out FilterR"),
1094 
1095 	{"DACL", NULL, "ST Mixer Out FilterL"},
1096 	{"DACR", NULL, "ST Mixer Out FilterR"},
1097 
1098 	{"Mixout Left PGA", NULL, "DACL"},
1099 	{"Mixout Right PGA", NULL, "DACR"},
1100 
1101 	{"HPL", NULL, "Mixout Left PGA"},
1102 	{"HPR", NULL, "Mixout Right PGA"},
1103 
1104 	{"HPL", NULL, "Headphone Left PGA"},
1105 	{"HPR", NULL, "Headphone Right PGA"},
1106 
1107 	{"HPL", NULL, "Charge Pump"},
1108 	{"HPR", NULL, "Charge Pump"},
1109 };
1110 
1111 
1112 /*
1113  * DAI operations
1114  */
1115 
1116 static int da7219_set_dai_sysclk(struct snd_soc_dai *codec_dai,
1117 				 int clk_id, unsigned int freq, int dir)
1118 {
1119 	struct snd_soc_codec *codec = codec_dai->codec;
1120 	struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
1121 	int ret = 0;
1122 
1123 	if ((da7219->clk_src == clk_id) && (da7219->mclk_rate == freq))
1124 		return 0;
1125 
1126 	if ((freq < 2000000) || (freq > 54000000)) {
1127 		dev_err(codec_dai->dev, "Unsupported MCLK value %d\n",
1128 			freq);
1129 		return -EINVAL;
1130 	}
1131 
1132 	mutex_lock(&da7219->pll_lock);
1133 
1134 	switch (clk_id) {
1135 	case DA7219_CLKSRC_MCLK_SQR:
1136 		snd_soc_update_bits(codec, DA7219_PLL_CTRL,
1137 				    DA7219_PLL_MCLK_SQR_EN_MASK,
1138 				    DA7219_PLL_MCLK_SQR_EN_MASK);
1139 		break;
1140 	case DA7219_CLKSRC_MCLK:
1141 		snd_soc_update_bits(codec, DA7219_PLL_CTRL,
1142 				    DA7219_PLL_MCLK_SQR_EN_MASK, 0);
1143 		break;
1144 	default:
1145 		dev_err(codec_dai->dev, "Unknown clock source %d\n", clk_id);
1146 		mutex_unlock(&da7219->pll_lock);
1147 		return -EINVAL;
1148 	}
1149 
1150 	da7219->clk_src = clk_id;
1151 
1152 	if (da7219->mclk) {
1153 		freq = clk_round_rate(da7219->mclk, freq);
1154 		ret = clk_set_rate(da7219->mclk, freq);
1155 		if (ret) {
1156 			dev_err(codec_dai->dev, "Failed to set clock rate %d\n",
1157 				freq);
1158 			mutex_unlock(&da7219->pll_lock);
1159 			return ret;
1160 		}
1161 	}
1162 
1163 	da7219->mclk_rate = freq;
1164 
1165 	mutex_unlock(&da7219->pll_lock);
1166 
1167 	return 0;
1168 }
1169 
1170 int da7219_set_pll(struct snd_soc_codec *codec, int source, unsigned int fout)
1171 {
1172 	struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
1173 
1174 	u8 pll_ctrl, indiv_bits, indiv;
1175 	u8 pll_frac_top, pll_frac_bot, pll_integer;
1176 	u32 freq_ref;
1177 	u64 frac_div;
1178 
1179 	/* Verify 2MHz - 54MHz MCLK provided, and set input divider */
1180 	if (da7219->mclk_rate < 2000000) {
1181 		dev_err(codec->dev, "PLL input clock %d below valid range\n",
1182 			da7219->mclk_rate);
1183 		return -EINVAL;
1184 	} else if (da7219->mclk_rate <= 4500000) {
1185 		indiv_bits = DA7219_PLL_INDIV_2_TO_4_5_MHZ;
1186 		indiv = DA7219_PLL_INDIV_2_TO_4_5_MHZ_VAL;
1187 	} else if (da7219->mclk_rate <= 9000000) {
1188 		indiv_bits = DA7219_PLL_INDIV_4_5_TO_9_MHZ;
1189 		indiv = DA7219_PLL_INDIV_4_5_TO_9_MHZ_VAL;
1190 	} else if (da7219->mclk_rate <= 18000000) {
1191 		indiv_bits = DA7219_PLL_INDIV_9_TO_18_MHZ;
1192 		indiv = DA7219_PLL_INDIV_9_TO_18_MHZ_VAL;
1193 	} else if (da7219->mclk_rate <= 36000000) {
1194 		indiv_bits = DA7219_PLL_INDIV_18_TO_36_MHZ;
1195 		indiv = DA7219_PLL_INDIV_18_TO_36_MHZ_VAL;
1196 	} else if (da7219->mclk_rate <= 54000000) {
1197 		indiv_bits = DA7219_PLL_INDIV_36_TO_54_MHZ;
1198 		indiv = DA7219_PLL_INDIV_36_TO_54_MHZ_VAL;
1199 	} else {
1200 		dev_err(codec->dev, "PLL input clock %d above valid range\n",
1201 			da7219->mclk_rate);
1202 		return -EINVAL;
1203 	}
1204 	freq_ref = (da7219->mclk_rate / indiv);
1205 	pll_ctrl = indiv_bits;
1206 
1207 	/* Configure PLL */
1208 	switch (source) {
1209 	case DA7219_SYSCLK_MCLK:
1210 		pll_ctrl |= DA7219_PLL_MODE_BYPASS;
1211 		snd_soc_update_bits(codec, DA7219_PLL_CTRL,
1212 				    DA7219_PLL_INDIV_MASK |
1213 				    DA7219_PLL_MODE_MASK, pll_ctrl);
1214 		return 0;
1215 	case DA7219_SYSCLK_PLL:
1216 		pll_ctrl |= DA7219_PLL_MODE_NORMAL;
1217 		break;
1218 	case DA7219_SYSCLK_PLL_SRM:
1219 		pll_ctrl |= DA7219_PLL_MODE_SRM;
1220 		break;
1221 	default:
1222 		dev_err(codec->dev, "Invalid PLL config\n");
1223 		return -EINVAL;
1224 	}
1225 
1226 	/* Calculate dividers for PLL */
1227 	pll_integer = fout / freq_ref;
1228 	frac_div = (u64)(fout % freq_ref) * 8192ULL;
1229 	do_div(frac_div, freq_ref);
1230 	pll_frac_top = (frac_div >> DA7219_BYTE_SHIFT) & DA7219_BYTE_MASK;
1231 	pll_frac_bot = (frac_div) & DA7219_BYTE_MASK;
1232 
1233 	/* Write PLL config & dividers */
1234 	snd_soc_write(codec, DA7219_PLL_FRAC_TOP, pll_frac_top);
1235 	snd_soc_write(codec, DA7219_PLL_FRAC_BOT, pll_frac_bot);
1236 	snd_soc_write(codec, DA7219_PLL_INTEGER, pll_integer);
1237 	snd_soc_update_bits(codec, DA7219_PLL_CTRL,
1238 			    DA7219_PLL_INDIV_MASK | DA7219_PLL_MODE_MASK,
1239 			    pll_ctrl);
1240 
1241 	return 0;
1242 }
1243 
1244 static int da7219_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
1245 			      int source, unsigned int fref, unsigned int fout)
1246 {
1247 	struct snd_soc_codec *codec = codec_dai->codec;
1248 	struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
1249 	int ret;
1250 
1251 	mutex_lock(&da7219->pll_lock);
1252 	ret = da7219_set_pll(codec, source, fout);
1253 	mutex_unlock(&da7219->pll_lock);
1254 
1255 	return ret;
1256 }
1257 
1258 static int da7219_set_dai_fmt(struct snd_soc_dai *codec_dai, unsigned int fmt)
1259 {
1260 	struct snd_soc_codec *codec = codec_dai->codec;
1261 	struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
1262 	u8 dai_clk_mode = 0, dai_ctrl = 0;
1263 
1264 	switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1265 	case SND_SOC_DAIFMT_CBM_CFM:
1266 		da7219->master = true;
1267 		break;
1268 	case SND_SOC_DAIFMT_CBS_CFS:
1269 		da7219->master = false;
1270 		break;
1271 	default:
1272 		return -EINVAL;
1273 	}
1274 
1275 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1276 	case SND_SOC_DAIFMT_I2S:
1277 	case SND_SOC_DAIFMT_LEFT_J:
1278 	case SND_SOC_DAIFMT_RIGHT_J:
1279 		switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1280 		case SND_SOC_DAIFMT_NB_NF:
1281 			break;
1282 		case SND_SOC_DAIFMT_NB_IF:
1283 			dai_clk_mode |= DA7219_DAI_WCLK_POL_INV;
1284 			break;
1285 		case SND_SOC_DAIFMT_IB_NF:
1286 			dai_clk_mode |= DA7219_DAI_CLK_POL_INV;
1287 			break;
1288 		case SND_SOC_DAIFMT_IB_IF:
1289 			dai_clk_mode |= DA7219_DAI_WCLK_POL_INV |
1290 					DA7219_DAI_CLK_POL_INV;
1291 			break;
1292 		default:
1293 			return -EINVAL;
1294 		}
1295 		break;
1296 	case SND_SOC_DAIFMT_DSP_B:
1297 		switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1298 		case SND_SOC_DAIFMT_NB_NF:
1299 			dai_clk_mode |= DA7219_DAI_CLK_POL_INV;
1300 			break;
1301 		case SND_SOC_DAIFMT_NB_IF:
1302 			dai_clk_mode |= DA7219_DAI_WCLK_POL_INV |
1303 					DA7219_DAI_CLK_POL_INV;
1304 			break;
1305 		case SND_SOC_DAIFMT_IB_NF:
1306 			break;
1307 		case SND_SOC_DAIFMT_IB_IF:
1308 			dai_clk_mode |= DA7219_DAI_WCLK_POL_INV;
1309 			break;
1310 		default:
1311 			return -EINVAL;
1312 		}
1313 		break;
1314 	default:
1315 		return -EINVAL;
1316 	}
1317 
1318 	switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1319 	case SND_SOC_DAIFMT_I2S:
1320 		dai_ctrl |= DA7219_DAI_FORMAT_I2S;
1321 		break;
1322 	case SND_SOC_DAIFMT_LEFT_J:
1323 		dai_ctrl |= DA7219_DAI_FORMAT_LEFT_J;
1324 		break;
1325 	case SND_SOC_DAIFMT_RIGHT_J:
1326 		dai_ctrl |= DA7219_DAI_FORMAT_RIGHT_J;
1327 		break;
1328 	case SND_SOC_DAIFMT_DSP_B:
1329 		dai_ctrl |= DA7219_DAI_FORMAT_DSP;
1330 		break;
1331 	default:
1332 		return -EINVAL;
1333 	}
1334 
1335 	/* By default 64 BCLKs per WCLK is supported */
1336 	dai_clk_mode |= DA7219_DAI_BCLKS_PER_WCLK_64;
1337 
1338 	snd_soc_update_bits(codec, DA7219_DAI_CLK_MODE,
1339 			    DA7219_DAI_BCLKS_PER_WCLK_MASK |
1340 			    DA7219_DAI_CLK_POL_MASK | DA7219_DAI_WCLK_POL_MASK,
1341 			    dai_clk_mode);
1342 	snd_soc_update_bits(codec, DA7219_DAI_CTRL, DA7219_DAI_FORMAT_MASK,
1343 			    dai_ctrl);
1344 
1345 	return 0;
1346 }
1347 
1348 static int da7219_set_dai_tdm_slot(struct snd_soc_dai *dai,
1349 				   unsigned int tx_mask, unsigned int rx_mask,
1350 				   int slots, int slot_width)
1351 {
1352 	struct snd_soc_codec *codec = dai->codec;
1353 	struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
1354 	u8 dai_bclks_per_wclk;
1355 	u16 offset;
1356 	u32 frame_size;
1357 
1358 	/* No channels enabled so disable TDM, revert to 64-bit frames */
1359 	if (!tx_mask) {
1360 		snd_soc_update_bits(codec, DA7219_DAI_TDM_CTRL,
1361 				    DA7219_DAI_TDM_CH_EN_MASK |
1362 				    DA7219_DAI_TDM_MODE_EN_MASK, 0);
1363 		snd_soc_update_bits(codec, DA7219_DAI_CLK_MODE,
1364 				    DA7219_DAI_BCLKS_PER_WCLK_MASK,
1365 				    DA7219_DAI_BCLKS_PER_WCLK_64);
1366 		return 0;
1367 	}
1368 
1369 	/* Check we have valid slots */
1370 	if (fls(tx_mask) > DA7219_DAI_TDM_MAX_SLOTS) {
1371 		dev_err(codec->dev, "Invalid number of slots, max = %d\n",
1372 			DA7219_DAI_TDM_MAX_SLOTS);
1373 		return -EINVAL;
1374 	}
1375 
1376 	/* Check we have a valid offset given */
1377 	if (rx_mask > DA7219_DAI_OFFSET_MAX) {
1378 		dev_err(codec->dev, "Invalid slot offset, max = %d\n",
1379 			DA7219_DAI_OFFSET_MAX);
1380 		return -EINVAL;
1381 	}
1382 
1383 	/* Calculate & validate frame size based on slot info provided. */
1384 	frame_size = slots * slot_width;
1385 	switch (frame_size) {
1386 	case 32:
1387 		dai_bclks_per_wclk = DA7219_DAI_BCLKS_PER_WCLK_32;
1388 		break;
1389 	case 64:
1390 		dai_bclks_per_wclk = DA7219_DAI_BCLKS_PER_WCLK_64;
1391 		break;
1392 	case 128:
1393 		dai_bclks_per_wclk = DA7219_DAI_BCLKS_PER_WCLK_128;
1394 		break;
1395 	case 256:
1396 		dai_bclks_per_wclk = DA7219_DAI_BCLKS_PER_WCLK_256;
1397 		break;
1398 	default:
1399 		dev_err(codec->dev, "Invalid frame size %d\n", frame_size);
1400 		return -EINVAL;
1401 	}
1402 
1403 	snd_soc_update_bits(codec, DA7219_DAI_CLK_MODE,
1404 			    DA7219_DAI_BCLKS_PER_WCLK_MASK,
1405 			    dai_bclks_per_wclk);
1406 
1407 	offset = cpu_to_le16(rx_mask);
1408 	regmap_bulk_write(da7219->regmap, DA7219_DAI_OFFSET_LOWER,
1409 			  &offset, sizeof(offset));
1410 
1411 	snd_soc_update_bits(codec, DA7219_DAI_TDM_CTRL,
1412 			    DA7219_DAI_TDM_CH_EN_MASK |
1413 			    DA7219_DAI_TDM_MODE_EN_MASK,
1414 			    (tx_mask << DA7219_DAI_TDM_CH_EN_SHIFT) |
1415 			    DA7219_DAI_TDM_MODE_EN_MASK);
1416 
1417 	return 0;
1418 }
1419 
1420 static int da7219_hw_params(struct snd_pcm_substream *substream,
1421 			    struct snd_pcm_hw_params *params,
1422 			    struct snd_soc_dai *dai)
1423 {
1424 	struct snd_soc_codec *codec = dai->codec;
1425 	u8 dai_ctrl = 0, fs;
1426 	unsigned int channels;
1427 
1428 	switch (params_width(params)) {
1429 	case 16:
1430 		dai_ctrl |= DA7219_DAI_WORD_LENGTH_S16_LE;
1431 		break;
1432 	case 20:
1433 		dai_ctrl |= DA7219_DAI_WORD_LENGTH_S20_LE;
1434 		break;
1435 	case 24:
1436 		dai_ctrl |= DA7219_DAI_WORD_LENGTH_S24_LE;
1437 		break;
1438 	case 32:
1439 		dai_ctrl |= DA7219_DAI_WORD_LENGTH_S32_LE;
1440 		break;
1441 	default:
1442 		return -EINVAL;
1443 	}
1444 
1445 	channels = params_channels(params);
1446 	if ((channels < 1) || (channels > DA7219_DAI_CH_NUM_MAX)) {
1447 		dev_err(codec->dev,
1448 			"Invalid number of channels, only 1 to %d supported\n",
1449 			DA7219_DAI_CH_NUM_MAX);
1450 		return -EINVAL;
1451 	}
1452 	dai_ctrl |= channels << DA7219_DAI_CH_NUM_SHIFT;
1453 
1454 	switch (params_rate(params)) {
1455 	case 8000:
1456 		fs = DA7219_SR_8000;
1457 		break;
1458 	case 11025:
1459 		fs = DA7219_SR_11025;
1460 		break;
1461 	case 12000:
1462 		fs = DA7219_SR_12000;
1463 		break;
1464 	case 16000:
1465 		fs = DA7219_SR_16000;
1466 		break;
1467 	case 22050:
1468 		fs = DA7219_SR_22050;
1469 		break;
1470 	case 24000:
1471 		fs = DA7219_SR_24000;
1472 		break;
1473 	case 32000:
1474 		fs = DA7219_SR_32000;
1475 		break;
1476 	case 44100:
1477 		fs = DA7219_SR_44100;
1478 		break;
1479 	case 48000:
1480 		fs = DA7219_SR_48000;
1481 		break;
1482 	case 88200:
1483 		fs = DA7219_SR_88200;
1484 		break;
1485 	case 96000:
1486 		fs = DA7219_SR_96000;
1487 		break;
1488 	default:
1489 		return -EINVAL;
1490 	}
1491 
1492 	snd_soc_update_bits(codec, DA7219_DAI_CTRL,
1493 			    DA7219_DAI_WORD_LENGTH_MASK |
1494 			    DA7219_DAI_CH_NUM_MASK,
1495 			    dai_ctrl);
1496 	snd_soc_write(codec, DA7219_SR, fs);
1497 
1498 	return 0;
1499 }
1500 
1501 static const struct snd_soc_dai_ops da7219_dai_ops = {
1502 	.hw_params	= da7219_hw_params,
1503 	.set_sysclk	= da7219_set_dai_sysclk,
1504 	.set_pll	= da7219_set_dai_pll,
1505 	.set_fmt	= da7219_set_dai_fmt,
1506 	.set_tdm_slot	= da7219_set_dai_tdm_slot,
1507 };
1508 
1509 #define DA7219_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1510 			SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
1511 
1512 static struct snd_soc_dai_driver da7219_dai = {
1513 	.name = "da7219-hifi",
1514 	.playback = {
1515 		.stream_name = "Playback",
1516 		.channels_min = 1,
1517 		.channels_max = DA7219_DAI_CH_NUM_MAX,
1518 		.rates = SNDRV_PCM_RATE_8000_96000,
1519 		.formats = DA7219_FORMATS,
1520 	},
1521 	.capture = {
1522 		.stream_name = "Capture",
1523 		.channels_min = 1,
1524 		.channels_max = DA7219_DAI_CH_NUM_MAX,
1525 		.rates = SNDRV_PCM_RATE_8000_96000,
1526 		.formats = DA7219_FORMATS,
1527 	},
1528 	.ops = &da7219_dai_ops,
1529 	.symmetric_rates = 1,
1530 	.symmetric_channels = 1,
1531 	.symmetric_samplebits = 1,
1532 };
1533 
1534 
1535 /*
1536  * DT/ACPI
1537  */
1538 
1539 static const struct of_device_id da7219_of_match[] = {
1540 	{ .compatible = "dlg,da7219", },
1541 	{ }
1542 };
1543 MODULE_DEVICE_TABLE(of, da7219_of_match);
1544 
1545 static const struct acpi_device_id da7219_acpi_match[] = {
1546 	{ .id = "DLGS7219", },
1547 	{ }
1548 };
1549 MODULE_DEVICE_TABLE(acpi, da7219_acpi_match);
1550 
1551 static enum da7219_micbias_voltage
1552 	da7219_fw_micbias_lvl(struct device *dev, u32 val)
1553 {
1554 	switch (val) {
1555 	case 1600:
1556 		return DA7219_MICBIAS_1_6V;
1557 	case 1800:
1558 		return DA7219_MICBIAS_1_8V;
1559 	case 2000:
1560 		return DA7219_MICBIAS_2_0V;
1561 	case 2200:
1562 		return DA7219_MICBIAS_2_2V;
1563 	case 2400:
1564 		return DA7219_MICBIAS_2_4V;
1565 	case 2600:
1566 		return DA7219_MICBIAS_2_6V;
1567 	default:
1568 		dev_warn(dev, "Invalid micbias level");
1569 		return DA7219_MICBIAS_2_2V;
1570 	}
1571 }
1572 
1573 static enum da7219_mic_amp_in_sel
1574 	da7219_fw_mic_amp_in_sel(struct device *dev, const char *str)
1575 {
1576 	if (!strcmp(str, "diff")) {
1577 		return DA7219_MIC_AMP_IN_SEL_DIFF;
1578 	} else if (!strcmp(str, "se_p")) {
1579 		return DA7219_MIC_AMP_IN_SEL_SE_P;
1580 	} else if (!strcmp(str, "se_n")) {
1581 		return DA7219_MIC_AMP_IN_SEL_SE_N;
1582 	} else {
1583 		dev_warn(dev, "Invalid mic input type selection");
1584 		return DA7219_MIC_AMP_IN_SEL_DIFF;
1585 	}
1586 }
1587 
1588 static struct da7219_pdata *da7219_fw_to_pdata(struct snd_soc_codec *codec)
1589 {
1590 	struct device *dev = codec->dev;
1591 	struct da7219_pdata *pdata;
1592 	const char *of_str;
1593 	u32 of_val32;
1594 
1595 	pdata = devm_kzalloc(dev, sizeof(*pdata), GFP_KERNEL);
1596 	if (!pdata)
1597 		return NULL;
1598 
1599 	pdata->wakeup_source = device_property_read_bool(dev, "wakeup-source");
1600 
1601 	if (device_property_read_u32(dev, "dlg,micbias-lvl", &of_val32) >= 0)
1602 		pdata->micbias_lvl = da7219_fw_micbias_lvl(dev, of_val32);
1603 	else
1604 		pdata->micbias_lvl = DA7219_MICBIAS_2_2V;
1605 
1606 	if (!device_property_read_string(dev, "dlg,mic-amp-in-sel", &of_str))
1607 		pdata->mic_amp_in_sel = da7219_fw_mic_amp_in_sel(dev, of_str);
1608 	else
1609 		pdata->mic_amp_in_sel = DA7219_MIC_AMP_IN_SEL_DIFF;
1610 
1611 	return pdata;
1612 }
1613 
1614 
1615 /*
1616  * Codec driver functions
1617  */
1618 
1619 static int da7219_set_bias_level(struct snd_soc_codec *codec,
1620 				 enum snd_soc_bias_level level)
1621 {
1622 	struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
1623 	int ret;
1624 
1625 	switch (level) {
1626 	case SND_SOC_BIAS_ON:
1627 		break;
1628 	case SND_SOC_BIAS_PREPARE:
1629 		/* Enable MCLK for transition to ON state */
1630 		if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_STANDBY) {
1631 			if (da7219->mclk) {
1632 				ret = clk_prepare_enable(da7219->mclk);
1633 				if (ret) {
1634 					dev_err(codec->dev,
1635 						"Failed to enable mclk\n");
1636 					return ret;
1637 				}
1638 			}
1639 		}
1640 
1641 		break;
1642 	case SND_SOC_BIAS_STANDBY:
1643 		if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF)
1644 			/* Master bias */
1645 			snd_soc_update_bits(codec, DA7219_REFERENCES,
1646 					    DA7219_BIAS_EN_MASK,
1647 					    DA7219_BIAS_EN_MASK);
1648 
1649 		if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_PREPARE) {
1650 			/* Remove MCLK */
1651 			if (da7219->mclk)
1652 				clk_disable_unprepare(da7219->mclk);
1653 		}
1654 		break;
1655 	case SND_SOC_BIAS_OFF:
1656 		/* Only disable master bias if we're not a wake-up source */
1657 		if (!da7219->wakeup_source)
1658 			snd_soc_update_bits(codec, DA7219_REFERENCES,
1659 					    DA7219_BIAS_EN_MASK, 0);
1660 
1661 		break;
1662 	}
1663 
1664 	return 0;
1665 }
1666 
1667 static const char *da7219_supply_names[DA7219_NUM_SUPPLIES] = {
1668 	[DA7219_SUPPLY_VDD] = "VDD",
1669 	[DA7219_SUPPLY_VDDMIC] = "VDDMIC",
1670 	[DA7219_SUPPLY_VDDIO] = "VDDIO",
1671 };
1672 
1673 static int da7219_handle_supplies(struct snd_soc_codec *codec)
1674 {
1675 	struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
1676 	struct regulator *vddio;
1677 	u8 io_voltage_lvl = DA7219_IO_VOLTAGE_LEVEL_2_5V_3_6V;
1678 	int i, ret;
1679 
1680 	/* Get required supplies */
1681 	for (i = 0; i < DA7219_NUM_SUPPLIES; ++i)
1682 		da7219->supplies[i].supply = da7219_supply_names[i];
1683 
1684 	ret = devm_regulator_bulk_get(codec->dev, DA7219_NUM_SUPPLIES,
1685 				      da7219->supplies);
1686 	if (ret) {
1687 		dev_err(codec->dev, "Failed to get supplies");
1688 		return ret;
1689 	}
1690 
1691 	/* Determine VDDIO voltage provided */
1692 	vddio = da7219->supplies[DA7219_SUPPLY_VDDIO].consumer;
1693 	ret = regulator_get_voltage(vddio);
1694 	if (ret < 1200000)
1695 		dev_warn(codec->dev, "Invalid VDDIO voltage\n");
1696 	else if (ret < 2800000)
1697 		io_voltage_lvl = DA7219_IO_VOLTAGE_LEVEL_1_2V_2_8V;
1698 
1699 	/* Enable main supplies */
1700 	ret = regulator_bulk_enable(DA7219_NUM_SUPPLIES, da7219->supplies);
1701 	if (ret) {
1702 		dev_err(codec->dev, "Failed to enable supplies");
1703 		return ret;
1704 	}
1705 
1706 	/* Ensure device in active mode */
1707 	snd_soc_write(codec, DA7219_SYSTEM_ACTIVE, DA7219_SYSTEM_ACTIVE_MASK);
1708 
1709 	/* Update IO voltage level range */
1710 	snd_soc_write(codec, DA7219_IO_CTRL, io_voltage_lvl);
1711 
1712 	return 0;
1713 }
1714 
1715 static void da7219_handle_pdata(struct snd_soc_codec *codec)
1716 {
1717 	struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
1718 	struct da7219_pdata *pdata = da7219->pdata;
1719 
1720 	if (pdata) {
1721 		u8 micbias_lvl = 0;
1722 
1723 		da7219->wakeup_source = pdata->wakeup_source;
1724 
1725 		/* Mic Bias voltages */
1726 		switch (pdata->micbias_lvl) {
1727 		case DA7219_MICBIAS_1_6V:
1728 		case DA7219_MICBIAS_1_8V:
1729 		case DA7219_MICBIAS_2_0V:
1730 		case DA7219_MICBIAS_2_2V:
1731 		case DA7219_MICBIAS_2_4V:
1732 		case DA7219_MICBIAS_2_6V:
1733 			micbias_lvl |= (pdata->micbias_lvl <<
1734 					DA7219_MICBIAS1_LEVEL_SHIFT);
1735 			break;
1736 		}
1737 
1738 		snd_soc_write(codec, DA7219_MICBIAS_CTRL, micbias_lvl);
1739 
1740 		/* Mic */
1741 		switch (pdata->mic_amp_in_sel) {
1742 		case DA7219_MIC_AMP_IN_SEL_DIFF:
1743 		case DA7219_MIC_AMP_IN_SEL_SE_P:
1744 		case DA7219_MIC_AMP_IN_SEL_SE_N:
1745 			snd_soc_write(codec, DA7219_MIC_1_SELECT,
1746 				      pdata->mic_amp_in_sel);
1747 			break;
1748 		}
1749 	}
1750 }
1751 
1752 static struct reg_sequence da7219_rev_aa_patch[] = {
1753 	{ DA7219_REFERENCES, 0x08 },
1754 };
1755 
1756 static int da7219_probe(struct snd_soc_codec *codec)
1757 {
1758 	struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
1759 	unsigned int rev;
1760 	int ret;
1761 
1762 	mutex_init(&da7219->ctrl_lock);
1763 	mutex_init(&da7219->pll_lock);
1764 
1765 	/* Regulator configuration */
1766 	ret = da7219_handle_supplies(codec);
1767 	if (ret)
1768 		return ret;
1769 
1770 	ret = regmap_read(da7219->regmap, DA7219_CHIP_REVISION, &rev);
1771 	if (ret) {
1772 		dev_err(codec->dev, "Failed to read chip revision: %d\n", ret);
1773 		goto err_disable_reg;
1774 	}
1775 
1776 	switch (rev & DA7219_CHIP_MINOR_MASK) {
1777 	case 0:
1778 		ret = regmap_register_patch(da7219->regmap, da7219_rev_aa_patch,
1779 					    ARRAY_SIZE(da7219_rev_aa_patch));
1780 		if (ret) {
1781 			dev_err(codec->dev, "Failed to register AA patch: %d\n",
1782 				ret);
1783 			goto err_disable_reg;
1784 		}
1785 		break;
1786 	default:
1787 		break;
1788 	}
1789 
1790 	/* Handle DT/ACPI/Platform data */
1791 	da7219->pdata = dev_get_platdata(codec->dev);
1792 	if (!da7219->pdata)
1793 		da7219->pdata = da7219_fw_to_pdata(codec);
1794 
1795 	da7219_handle_pdata(codec);
1796 
1797 	/* Check if MCLK provided */
1798 	da7219->mclk = devm_clk_get(codec->dev, "mclk");
1799 	if (IS_ERR(da7219->mclk)) {
1800 		if (PTR_ERR(da7219->mclk) != -ENOENT) {
1801 			ret = PTR_ERR(da7219->mclk);
1802 			goto err_disable_reg;
1803 		} else {
1804 			da7219->mclk = NULL;
1805 		}
1806 	}
1807 
1808 	/* Default PC counter to free-running */
1809 	snd_soc_update_bits(codec, DA7219_PC_COUNT, DA7219_PC_FREERUN_MASK,
1810 			    DA7219_PC_FREERUN_MASK);
1811 
1812 	/* Default gain ramping */
1813 	snd_soc_update_bits(codec, DA7219_MIXIN_L_CTRL,
1814 			    DA7219_MIXIN_L_AMP_RAMP_EN_MASK,
1815 			    DA7219_MIXIN_L_AMP_RAMP_EN_MASK);
1816 	snd_soc_update_bits(codec, DA7219_ADC_L_CTRL, DA7219_ADC_L_RAMP_EN_MASK,
1817 			    DA7219_ADC_L_RAMP_EN_MASK);
1818 	snd_soc_update_bits(codec, DA7219_DAC_L_CTRL, DA7219_DAC_L_RAMP_EN_MASK,
1819 			    DA7219_DAC_L_RAMP_EN_MASK);
1820 	snd_soc_update_bits(codec, DA7219_DAC_R_CTRL, DA7219_DAC_R_RAMP_EN_MASK,
1821 			    DA7219_DAC_R_RAMP_EN_MASK);
1822 	snd_soc_update_bits(codec, DA7219_HP_L_CTRL,
1823 			    DA7219_HP_L_AMP_RAMP_EN_MASK,
1824 			    DA7219_HP_L_AMP_RAMP_EN_MASK);
1825 	snd_soc_update_bits(codec, DA7219_HP_R_CTRL,
1826 			    DA7219_HP_R_AMP_RAMP_EN_MASK,
1827 			    DA7219_HP_R_AMP_RAMP_EN_MASK);
1828 
1829 	/* Default minimum gain on HP to avoid pops during DAPM sequencing */
1830 	snd_soc_update_bits(codec, DA7219_HP_L_CTRL,
1831 			    DA7219_HP_L_AMP_MIN_GAIN_EN_MASK,
1832 			    DA7219_HP_L_AMP_MIN_GAIN_EN_MASK);
1833 	snd_soc_update_bits(codec, DA7219_HP_R_CTRL,
1834 			    DA7219_HP_R_AMP_MIN_GAIN_EN_MASK,
1835 			    DA7219_HP_R_AMP_MIN_GAIN_EN_MASK);
1836 
1837 	/* Default infinite tone gen, start/stop by Kcontrol */
1838 	snd_soc_write(codec, DA7219_TONE_GEN_CYCLES, DA7219_BEEP_CYCLES_MASK);
1839 
1840 	/* Initialise AAD block */
1841 	ret = da7219_aad_init(codec);
1842 	if (ret)
1843 		goto err_disable_reg;
1844 
1845 	return 0;
1846 
1847 err_disable_reg:
1848 	regulator_bulk_disable(DA7219_NUM_SUPPLIES, da7219->supplies);
1849 
1850 	return ret;
1851 }
1852 
1853 static int da7219_remove(struct snd_soc_codec *codec)
1854 {
1855 	struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
1856 
1857 	da7219_aad_exit(codec);
1858 
1859 	/* Supplies */
1860 	return regulator_bulk_disable(DA7219_NUM_SUPPLIES, da7219->supplies);
1861 }
1862 
1863 #ifdef CONFIG_PM
1864 static int da7219_suspend(struct snd_soc_codec *codec)
1865 {
1866 	struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
1867 
1868 	/* Suspend AAD if we're not a wake-up source */
1869 	if (!da7219->wakeup_source)
1870 		da7219_aad_suspend(codec);
1871 
1872 	snd_soc_codec_force_bias_level(codec, SND_SOC_BIAS_OFF);
1873 
1874 	return 0;
1875 }
1876 
1877 static int da7219_resume(struct snd_soc_codec *codec)
1878 {
1879 	struct da7219_priv *da7219 = snd_soc_codec_get_drvdata(codec);
1880 
1881 	snd_soc_codec_force_bias_level(codec, SND_SOC_BIAS_STANDBY);
1882 
1883 	/* Resume AAD if previously suspended */
1884 	if (!da7219->wakeup_source)
1885 		da7219_aad_resume(codec);
1886 
1887 	return 0;
1888 }
1889 #else
1890 #define da7219_suspend NULL
1891 #define da7219_resume NULL
1892 #endif
1893 
1894 static const struct snd_soc_codec_driver soc_codec_dev_da7219 = {
1895 	.probe			= da7219_probe,
1896 	.remove			= da7219_remove,
1897 	.suspend		= da7219_suspend,
1898 	.resume			= da7219_resume,
1899 	.set_bias_level		= da7219_set_bias_level,
1900 
1901 	.component_driver = {
1902 		.controls		= da7219_snd_controls,
1903 		.num_controls		= ARRAY_SIZE(da7219_snd_controls),
1904 		.dapm_widgets		= da7219_dapm_widgets,
1905 		.num_dapm_widgets	= ARRAY_SIZE(da7219_dapm_widgets),
1906 		.dapm_routes		= da7219_audio_map,
1907 		.num_dapm_routes	= ARRAY_SIZE(da7219_audio_map),
1908 	},
1909 };
1910 
1911 
1912 /*
1913  * Regmap configs
1914  */
1915 
1916 static struct reg_default da7219_reg_defaults[] = {
1917 	{ DA7219_MIC_1_SELECT, 0x00 },
1918 	{ DA7219_CIF_TIMEOUT_CTRL, 0x01 },
1919 	{ DA7219_SR_24_48, 0x00 },
1920 	{ DA7219_SR, 0x0A },
1921 	{ DA7219_CIF_I2C_ADDR_CFG, 0x02 },
1922 	{ DA7219_PLL_CTRL, 0x10 },
1923 	{ DA7219_PLL_FRAC_TOP, 0x00 },
1924 	{ DA7219_PLL_FRAC_BOT, 0x00 },
1925 	{ DA7219_PLL_INTEGER, 0x20 },
1926 	{ DA7219_DIG_ROUTING_DAI, 0x10 },
1927 	{ DA7219_DAI_CLK_MODE, 0x01 },
1928 	{ DA7219_DAI_CTRL, 0x28 },
1929 	{ DA7219_DAI_TDM_CTRL, 0x40 },
1930 	{ DA7219_DIG_ROUTING_DAC, 0x32 },
1931 	{ DA7219_DAI_OFFSET_LOWER, 0x00 },
1932 	{ DA7219_DAI_OFFSET_UPPER, 0x00 },
1933 	{ DA7219_REFERENCES, 0x08 },
1934 	{ DA7219_MIXIN_L_SELECT, 0x00 },
1935 	{ DA7219_MIXIN_L_GAIN, 0x03 },
1936 	{ DA7219_ADC_L_GAIN, 0x6F },
1937 	{ DA7219_ADC_FILTERS1, 0x80 },
1938 	{ DA7219_MIC_1_GAIN, 0x01 },
1939 	{ DA7219_SIDETONE_CTRL, 0x40 },
1940 	{ DA7219_SIDETONE_GAIN, 0x0E },
1941 	{ DA7219_DROUTING_ST_OUTFILT_1L, 0x01 },
1942 	{ DA7219_DROUTING_ST_OUTFILT_1R, 0x02 },
1943 	{ DA7219_DAC_FILTERS5, 0x00 },
1944 	{ DA7219_DAC_FILTERS2, 0x88 },
1945 	{ DA7219_DAC_FILTERS3, 0x88 },
1946 	{ DA7219_DAC_FILTERS4, 0x08 },
1947 	{ DA7219_DAC_FILTERS1, 0x80 },
1948 	{ DA7219_DAC_L_GAIN, 0x6F },
1949 	{ DA7219_DAC_R_GAIN, 0x6F },
1950 	{ DA7219_CP_CTRL, 0x20 },
1951 	{ DA7219_HP_L_GAIN, 0x39 },
1952 	{ DA7219_HP_R_GAIN, 0x39 },
1953 	{ DA7219_MIXOUT_L_SELECT, 0x00 },
1954 	{ DA7219_MIXOUT_R_SELECT, 0x00 },
1955 	{ DA7219_MICBIAS_CTRL, 0x03 },
1956 	{ DA7219_MIC_1_CTRL, 0x40 },
1957 	{ DA7219_MIXIN_L_CTRL, 0x40 },
1958 	{ DA7219_ADC_L_CTRL, 0x40 },
1959 	{ DA7219_DAC_L_CTRL, 0x40 },
1960 	{ DA7219_DAC_R_CTRL, 0x40 },
1961 	{ DA7219_HP_L_CTRL, 0x40 },
1962 	{ DA7219_HP_R_CTRL, 0x40 },
1963 	{ DA7219_MIXOUT_L_CTRL, 0x10 },
1964 	{ DA7219_MIXOUT_R_CTRL, 0x10 },
1965 	{ DA7219_CHIP_ID1, 0x23 },
1966 	{ DA7219_CHIP_ID2, 0x93 },
1967 	{ DA7219_IO_CTRL, 0x00 },
1968 	{ DA7219_GAIN_RAMP_CTRL, 0x00 },
1969 	{ DA7219_PC_COUNT, 0x02 },
1970 	{ DA7219_CP_VOL_THRESHOLD1, 0x0E },
1971 	{ DA7219_DIG_CTRL, 0x00 },
1972 	{ DA7219_ALC_CTRL2, 0x00 },
1973 	{ DA7219_ALC_CTRL3, 0x00 },
1974 	{ DA7219_ALC_NOISE, 0x3F },
1975 	{ DA7219_ALC_TARGET_MIN, 0x3F },
1976 	{ DA7219_ALC_TARGET_MAX, 0x00 },
1977 	{ DA7219_ALC_GAIN_LIMITS, 0xFF },
1978 	{ DA7219_ALC_ANA_GAIN_LIMITS, 0x71 },
1979 	{ DA7219_ALC_ANTICLIP_CTRL, 0x00 },
1980 	{ DA7219_ALC_ANTICLIP_LEVEL, 0x00 },
1981 	{ DA7219_DAC_NG_SETUP_TIME, 0x00 },
1982 	{ DA7219_DAC_NG_OFF_THRESH, 0x00 },
1983 	{ DA7219_DAC_NG_ON_THRESH, 0x00 },
1984 	{ DA7219_DAC_NG_CTRL, 0x00 },
1985 	{ DA7219_TONE_GEN_CFG1, 0x00 },
1986 	{ DA7219_TONE_GEN_CFG2, 0x00 },
1987 	{ DA7219_TONE_GEN_CYCLES, 0x00 },
1988 	{ DA7219_TONE_GEN_FREQ1_L, 0x55 },
1989 	{ DA7219_TONE_GEN_FREQ1_U, 0x15 },
1990 	{ DA7219_TONE_GEN_FREQ2_L, 0x00 },
1991 	{ DA7219_TONE_GEN_FREQ2_U, 0x40 },
1992 	{ DA7219_TONE_GEN_ON_PER, 0x02 },
1993 	{ DA7219_TONE_GEN_OFF_PER, 0x01 },
1994 	{ DA7219_ACCDET_IRQ_MASK_A, 0x00 },
1995 	{ DA7219_ACCDET_IRQ_MASK_B, 0x00 },
1996 	{ DA7219_ACCDET_CONFIG_1, 0xD6 },
1997 	{ DA7219_ACCDET_CONFIG_2, 0x34 },
1998 	{ DA7219_ACCDET_CONFIG_3, 0x0A },
1999 	{ DA7219_ACCDET_CONFIG_4, 0x16 },
2000 	{ DA7219_ACCDET_CONFIG_5, 0x21 },
2001 	{ DA7219_ACCDET_CONFIG_6, 0x3E },
2002 	{ DA7219_ACCDET_CONFIG_7, 0x01 },
2003 	{ DA7219_SYSTEM_ACTIVE, 0x00 },
2004 };
2005 
2006 static bool da7219_volatile_register(struct device *dev, unsigned int reg)
2007 {
2008 	switch (reg) {
2009 	case DA7219_MIC_1_GAIN_STATUS:
2010 	case DA7219_MIXIN_L_GAIN_STATUS:
2011 	case DA7219_ADC_L_GAIN_STATUS:
2012 	case DA7219_DAC_L_GAIN_STATUS:
2013 	case DA7219_DAC_R_GAIN_STATUS:
2014 	case DA7219_HP_L_GAIN_STATUS:
2015 	case DA7219_HP_R_GAIN_STATUS:
2016 	case DA7219_CIF_CTRL:
2017 	case DA7219_PLL_SRM_STS:
2018 	case DA7219_ALC_CTRL1:
2019 	case DA7219_SYSTEM_MODES_INPUT:
2020 	case DA7219_SYSTEM_MODES_OUTPUT:
2021 	case DA7219_ALC_OFFSET_AUTO_M_L:
2022 	case DA7219_ALC_OFFSET_AUTO_U_L:
2023 	case DA7219_TONE_GEN_CFG1:
2024 	case DA7219_ACCDET_STATUS_A:
2025 	case DA7219_ACCDET_STATUS_B:
2026 	case DA7219_ACCDET_IRQ_EVENT_A:
2027 	case DA7219_ACCDET_IRQ_EVENT_B:
2028 	case DA7219_ACCDET_CONFIG_8:
2029 	case DA7219_SYSTEM_STATUS:
2030 		return 1;
2031 	default:
2032 		return 0;
2033 	}
2034 }
2035 
2036 static const struct regmap_config da7219_regmap_config = {
2037 	.reg_bits = 8,
2038 	.val_bits = 8,
2039 
2040 	.max_register = DA7219_SYSTEM_ACTIVE,
2041 	.reg_defaults = da7219_reg_defaults,
2042 	.num_reg_defaults = ARRAY_SIZE(da7219_reg_defaults),
2043 	.volatile_reg = da7219_volatile_register,
2044 	.cache_type = REGCACHE_RBTREE,
2045 };
2046 
2047 
2048 /*
2049  * I2C layer
2050  */
2051 
2052 static int da7219_i2c_probe(struct i2c_client *i2c,
2053 			    const struct i2c_device_id *id)
2054 {
2055 	struct da7219_priv *da7219;
2056 	unsigned int system_active, system_status;
2057 	int i, ret;
2058 
2059 	da7219 = devm_kzalloc(&i2c->dev, sizeof(struct da7219_priv),
2060 			      GFP_KERNEL);
2061 	if (!da7219)
2062 		return -ENOMEM;
2063 
2064 	i2c_set_clientdata(i2c, da7219);
2065 
2066 	da7219->regmap = devm_regmap_init_i2c(i2c, &da7219_regmap_config);
2067 	if (IS_ERR(da7219->regmap)) {
2068 		ret = PTR_ERR(da7219->regmap);
2069 		dev_err(&i2c->dev, "regmap_init() failed: %d\n", ret);
2070 		return ret;
2071 	}
2072 
2073 	regcache_cache_bypass(da7219->regmap, true);
2074 
2075 	/* Disable audio paths if still active from previous start */
2076 	regmap_read(da7219->regmap, DA7219_SYSTEM_ACTIVE, &system_active);
2077 	if (system_active) {
2078 		regmap_write(da7219->regmap, DA7219_GAIN_RAMP_CTRL,
2079 			     DA7219_GAIN_RAMP_RATE_NOMINAL);
2080 		regmap_write(da7219->regmap, DA7219_SYSTEM_MODES_INPUT, 0x00);
2081 		regmap_write(da7219->regmap, DA7219_SYSTEM_MODES_OUTPUT, 0x01);
2082 
2083 		for (i = 0; i < DA7219_SYS_STAT_CHECK_RETRIES; ++i) {
2084 			regmap_read(da7219->regmap, DA7219_SYSTEM_STATUS,
2085 				    &system_status);
2086 			if (!system_status)
2087 				break;
2088 
2089 			msleep(DA7219_SYS_STAT_CHECK_DELAY);
2090 		}
2091 	}
2092 
2093 	/* Soft reset codec */
2094 	regmap_write_bits(da7219->regmap, DA7219_ACCDET_CONFIG_1,
2095 			  DA7219_ACCDET_EN_MASK, 0);
2096 	regmap_write_bits(da7219->regmap, DA7219_CIF_CTRL,
2097 			  DA7219_CIF_REG_SOFT_RESET_MASK,
2098 			  DA7219_CIF_REG_SOFT_RESET_MASK);
2099 	regmap_write_bits(da7219->regmap, DA7219_SYSTEM_ACTIVE,
2100 			  DA7219_SYSTEM_ACTIVE_MASK, 0);
2101 
2102 	regcache_cache_bypass(da7219->regmap, false);
2103 
2104 	ret = snd_soc_register_codec(&i2c->dev, &soc_codec_dev_da7219,
2105 				     &da7219_dai, 1);
2106 	if (ret < 0) {
2107 		dev_err(&i2c->dev, "Failed to register da7219 codec: %d\n",
2108 			ret);
2109 	}
2110 	return ret;
2111 }
2112 
2113 static int da7219_i2c_remove(struct i2c_client *client)
2114 {
2115 	snd_soc_unregister_codec(&client->dev);
2116 	return 0;
2117 }
2118 
2119 static const struct i2c_device_id da7219_i2c_id[] = {
2120 	{ "da7219", },
2121 	{ }
2122 };
2123 MODULE_DEVICE_TABLE(i2c, da7219_i2c_id);
2124 
2125 static struct i2c_driver da7219_i2c_driver = {
2126 	.driver = {
2127 		.name = "da7219",
2128 		.of_match_table = of_match_ptr(da7219_of_match),
2129 		.acpi_match_table = ACPI_PTR(da7219_acpi_match),
2130 	},
2131 	.probe		= da7219_i2c_probe,
2132 	.remove		= da7219_i2c_remove,
2133 	.id_table	= da7219_i2c_id,
2134 };
2135 
2136 module_i2c_driver(da7219_i2c_driver);
2137 
2138 MODULE_DESCRIPTION("ASoC DA7219 Codec Driver");
2139 MODULE_AUTHOR("Adam Thomson <Adam.Thomson.Opensource@diasemi.com>");
2140 MODULE_LICENSE("GPL");
2141