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7
8#include <linux/delay.h>
9#include <linux/gpio/consumer.h>
10#include <linux/i2c.h>
11#include <linux/module.h>
12#include <linux/of_device.h>
13#include <linux/of_gpio.h>
14#include <linux/pm_runtime.h>
15#include <linux/regulator/consumer.h>
16#include <linux/slab.h>
17#include <sound/initval.h>
18#include <sound/pcm_params.h>
19#include <sound/soc.h>
20#include <sound/soc-dapm.h>
21#include <sound/tlv.h>
22
23#include "ak4458.h"
24
25#define AK4458_NUM_SUPPLIES 2
26static const char *ak4458_supply_names[AK4458_NUM_SUPPLIES] = {
27 "DVDD",
28 "AVDD",
29};
30
31enum ak4458_type {
32 AK4458 = 0,
33 AK4497 = 1,
34};
35
36struct ak4458_drvdata {
37 struct snd_soc_dai_driver *dai_drv;
38 const struct snd_soc_component_driver *comp_drv;
39 enum ak4458_type type;
40};
41
42
43struct ak4458_priv {
44 struct regulator_bulk_data supplies[AK4458_NUM_SUPPLIES];
45 const struct ak4458_drvdata *drvdata;
46 struct device *dev;
47 struct regmap *regmap;
48 struct gpio_desc *reset_gpiod;
49 struct gpio_desc *mute_gpiod;
50 int digfil;
51 int fs;
52 int fmt;
53 int slots;
54 int slot_width;
55 u32 dsd_path;
56};
57
58static const struct reg_default ak4458_reg_defaults[] = {
59 { 0x00, 0x0C },
60 { 0x01, 0x22 },
61 { 0x02, 0x00 },
62 { 0x03, 0xFF },
63 { 0x04, 0xFF },
64 { 0x05, 0x00 },
65 { 0x06, 0x00 },
66 { 0x07, 0x03 },
67 { 0x08, 0x00 },
68 { 0x09, 0x00 },
69 { 0x0A, 0x0D },
70 { 0x0B, 0x0C },
71 { 0x0C, 0x00 },
72 { 0x0D, 0x00 },
73 { 0x0E, 0x50 },
74 { 0x0F, 0xFF },
75 { 0x10, 0xFF },
76 { 0x11, 0xFF },
77 { 0x12, 0xFF },
78 { 0x13, 0xFF },
79 { 0x14, 0xFF },
80};
81
82
83
84
85
86static DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
87
88
89
90
91
92
93
94
95static const char * const ak4458_dem_select_texts[] = {
96 "44.1kHz", "OFF", "48kHz", "32kHz"
97};
98
99
100
101
102
103
104
105
106
107static const char * const ak4458_digfil_select_texts[] = {
108 "Sharp Roll-Off Filter",
109 "Slow Roll-Off Filter",
110 "Short delay Sharp Roll-Off Filter",
111 "Short delay Slow Roll-Off Filter",
112 "Super Slow Roll-Off Filter"
113};
114
115
116
117
118
119
120static const char * const ak4458_dzfb_select_texts[] = {"H", "L"};
121
122
123
124
125
126
127
128
129static const char * const ak4458_sc_select_texts[] = {
130 "Sound Mode 0", "Sound Mode 1", "Sound Mode 2"
131};
132
133
134static const char * const ak4458_fir_select_texts[] = {
135 "Mode 0", "Mode 1", "Mode 2", "Mode 3",
136 "Mode 4", "Mode 5", "Mode 6", "Mode 7",
137};
138
139
140static const char * const ak4458_ats_select_texts[] = {
141 "4080/fs", "2040/fs", "510/fs", "255/fs",
142};
143
144
145static const char * const ak4458_dif_select_texts[] = {"32fs,48fs", "64fs",};
146
147static const struct soc_enum ak4458_dac1_dem_enum =
148 SOC_ENUM_SINGLE(AK4458_01_CONTROL2, 1,
149 ARRAY_SIZE(ak4458_dem_select_texts),
150 ak4458_dem_select_texts);
151static const struct soc_enum ak4458_dac2_dem_enum =
152 SOC_ENUM_SINGLE(AK4458_0A_CONTROL6, 0,
153 ARRAY_SIZE(ak4458_dem_select_texts),
154 ak4458_dem_select_texts);
155static const struct soc_enum ak4458_dac3_dem_enum =
156 SOC_ENUM_SINGLE(AK4458_0E_CONTROL10, 4,
157 ARRAY_SIZE(ak4458_dem_select_texts),
158 ak4458_dem_select_texts);
159static const struct soc_enum ak4458_dac4_dem_enum =
160 SOC_ENUM_SINGLE(AK4458_0E_CONTROL10, 6,
161 ARRAY_SIZE(ak4458_dem_select_texts),
162 ak4458_dem_select_texts);
163static const struct soc_enum ak4458_digfil_enum =
164 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(ak4458_digfil_select_texts),
165 ak4458_digfil_select_texts);
166static const struct soc_enum ak4458_dzfb_enum =
167 SOC_ENUM_SINGLE(AK4458_02_CONTROL3, 2,
168 ARRAY_SIZE(ak4458_dzfb_select_texts),
169 ak4458_dzfb_select_texts);
170static const struct soc_enum ak4458_sm_enum =
171 SOC_ENUM_SINGLE(AK4458_08_SOUND_CONTROL, 0,
172 ARRAY_SIZE(ak4458_sc_select_texts),
173 ak4458_sc_select_texts);
174static const struct soc_enum ak4458_fir_enum =
175 SOC_ENUM_SINGLE(AK4458_0C_CONTROL8, 0,
176 ARRAY_SIZE(ak4458_fir_select_texts),
177 ak4458_fir_select_texts);
178static const struct soc_enum ak4458_ats_enum =
179 SOC_ENUM_SINGLE(AK4458_0B_CONTROL7, 6,
180 ARRAY_SIZE(ak4458_ats_select_texts),
181 ak4458_ats_select_texts);
182static const struct soc_enum ak4458_dif_enum =
183 SOC_ENUM_SINGLE(AK4458_00_CONTROL1, 3,
184 ARRAY_SIZE(ak4458_dif_select_texts),
185 ak4458_dif_select_texts);
186
187static int get_digfil(struct snd_kcontrol *kcontrol,
188 struct snd_ctl_elem_value *ucontrol)
189{
190 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
191 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
192
193 ucontrol->value.enumerated.item[0] = ak4458->digfil;
194
195 return 0;
196}
197
198static int set_digfil(struct snd_kcontrol *kcontrol,
199 struct snd_ctl_elem_value *ucontrol)
200{
201 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
202 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
203 int num;
204
205 num = ucontrol->value.enumerated.item[0];
206 if (num > 4)
207 return -EINVAL;
208
209 ak4458->digfil = num;
210
211
212 snd_soc_component_update_bits(component, AK4458_01_CONTROL2,
213 AK4458_SD_MASK,
214 ((ak4458->digfil & 0x02) << 4));
215
216
217 snd_soc_component_update_bits(component, AK4458_02_CONTROL3,
218 AK4458_SLOW_MASK,
219 (ak4458->digfil & 0x01));
220
221
222 snd_soc_component_update_bits(component, AK4458_05_CONTROL4,
223 AK4458_SSLOW_MASK,
224 ((ak4458->digfil & 0x04) >> 2));
225
226 return 0;
227}
228
229static const struct snd_kcontrol_new ak4458_snd_controls[] = {
230 SOC_DOUBLE_R_TLV("DAC1 Playback Volume", AK4458_03_LCHATT,
231 AK4458_04_RCHATT, 0, 0xFF, 0, dac_tlv),
232 SOC_DOUBLE_R_TLV("DAC2 Playback Volume", AK4458_0F_L2CHATT,
233 AK4458_10_R2CHATT, 0, 0xFF, 0, dac_tlv),
234 SOC_DOUBLE_R_TLV("DAC3 Playback Volume", AK4458_11_L3CHATT,
235 AK4458_12_R3CHATT, 0, 0xFF, 0, dac_tlv),
236 SOC_DOUBLE_R_TLV("DAC4 Playback Volume", AK4458_13_L4CHATT,
237 AK4458_14_R4CHATT, 0, 0xFF, 0, dac_tlv),
238 SOC_ENUM("AK4458 De-emphasis Response DAC1", ak4458_dac1_dem_enum),
239 SOC_ENUM("AK4458 De-emphasis Response DAC2", ak4458_dac2_dem_enum),
240 SOC_ENUM("AK4458 De-emphasis Response DAC3", ak4458_dac3_dem_enum),
241 SOC_ENUM("AK4458 De-emphasis Response DAC4", ak4458_dac4_dem_enum),
242 SOC_ENUM_EXT("AK4458 Digital Filter Setting", ak4458_digfil_enum,
243 get_digfil, set_digfil),
244 SOC_ENUM("AK4458 Inverting Enable of DZFB", ak4458_dzfb_enum),
245 SOC_ENUM("AK4458 Sound Mode", ak4458_sm_enum),
246 SOC_ENUM("AK4458 FIR Filter Mode Setting", ak4458_fir_enum),
247 SOC_ENUM("AK4458 Attenuation transition Time Setting",
248 ak4458_ats_enum),
249 SOC_ENUM("AK4458 BICK fs Setting", ak4458_dif_enum),
250};
251
252
253static const struct snd_soc_dapm_widget ak4458_dapm_widgets[] = {
254 SND_SOC_DAPM_DAC("AK4458 DAC1", NULL, AK4458_0A_CONTROL6, 2, 0),
255 SND_SOC_DAPM_AIF_IN("AK4458 SDTI", "Playback", 0, SND_SOC_NOPM, 0, 0),
256 SND_SOC_DAPM_OUTPUT("AK4458 AOUTA"),
257
258 SND_SOC_DAPM_DAC("AK4458 DAC2", NULL, AK4458_0A_CONTROL6, 3, 0),
259 SND_SOC_DAPM_OUTPUT("AK4458 AOUTB"),
260
261 SND_SOC_DAPM_DAC("AK4458 DAC3", NULL, AK4458_0B_CONTROL7, 2, 0),
262 SND_SOC_DAPM_OUTPUT("AK4458 AOUTC"),
263
264 SND_SOC_DAPM_DAC("AK4458 DAC4", NULL, AK4458_0B_CONTROL7, 3, 0),
265 SND_SOC_DAPM_OUTPUT("AK4458 AOUTD"),
266};
267
268static const struct snd_soc_dapm_route ak4458_intercon[] = {
269 {"AK4458 DAC1", NULL, "AK4458 SDTI"},
270 {"AK4458 AOUTA", NULL, "AK4458 DAC1"},
271
272 {"AK4458 DAC2", NULL, "AK4458 SDTI"},
273 {"AK4458 AOUTB", NULL, "AK4458 DAC2"},
274
275 {"AK4458 DAC3", NULL, "AK4458 SDTI"},
276 {"AK4458 AOUTC", NULL, "AK4458 DAC3"},
277
278 {"AK4458 DAC4", NULL, "AK4458 SDTI"},
279 {"AK4458 AOUTD", NULL, "AK4458 DAC4"},
280};
281
282
283static const struct snd_kcontrol_new ak4497_snd_controls[] = {
284 SOC_DOUBLE_R_TLV("DAC Playback Volume", AK4458_03_LCHATT,
285 AK4458_04_RCHATT, 0, 0xFF, 0, dac_tlv),
286 SOC_ENUM("AK4497 De-emphasis Response DAC", ak4458_dac1_dem_enum),
287 SOC_ENUM_EXT("AK4497 Digital Filter Setting", ak4458_digfil_enum,
288 get_digfil, set_digfil),
289 SOC_ENUM("AK4497 Inverting Enable of DZFB", ak4458_dzfb_enum),
290 SOC_ENUM("AK4497 Sound Mode", ak4458_sm_enum),
291 SOC_ENUM("AK4497 Attenuation transition Time Setting",
292 ak4458_ats_enum),
293};
294
295
296static const struct snd_soc_dapm_widget ak4497_dapm_widgets[] = {
297 SND_SOC_DAPM_DAC("AK4497 DAC", NULL, AK4458_0A_CONTROL6, 2, 0),
298 SND_SOC_DAPM_AIF_IN("AK4497 SDTI", "Playback", 0, SND_SOC_NOPM, 0, 0),
299 SND_SOC_DAPM_OUTPUT("AK4497 AOUT"),
300};
301
302
303static const struct snd_soc_dapm_route ak4497_intercon[] = {
304 {"AK4497 DAC", NULL, "AK4497 SDTI"},
305 {"AK4497 AOUT", NULL, "AK4497 DAC"},
306
307};
308
309static int ak4458_get_tdm_mode(struct ak4458_priv *ak4458)
310{
311 switch (ak4458->slots * ak4458->slot_width) {
312 case 128:
313 return 1;
314 case 256:
315 return 2;
316 case 512:
317 return 3;
318 default:
319 return 0;
320 }
321}
322
323static int ak4458_rstn_control(struct snd_soc_component *component, int bit)
324{
325 int ret;
326
327 if (bit)
328 ret = snd_soc_component_update_bits(component,
329 AK4458_00_CONTROL1,
330 AK4458_RSTN_MASK,
331 0x1);
332 else
333 ret = snd_soc_component_update_bits(component,
334 AK4458_00_CONTROL1,
335 AK4458_RSTN_MASK,
336 0x0);
337 if (ret < 0)
338 return ret;
339
340 return 0;
341}
342
343static int ak4458_hw_params(struct snd_pcm_substream *substream,
344 struct snd_pcm_hw_params *params,
345 struct snd_soc_dai *dai)
346{
347 struct snd_soc_component *component = dai->component;
348 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
349 int pcm_width = max(params_physical_width(params), ak4458->slot_width);
350 u8 format, dsdsel0, dsdsel1, dchn;
351 int nfs1, dsd_bclk, ret, channels, channels_max;
352
353 nfs1 = params_rate(params);
354 ak4458->fs = nfs1;
355
356
357 channels = params_channels(params);
358 channels_max = dai->driver->playback.channels_max;
359
360 switch (params_format(params)) {
361 case SNDRV_PCM_FORMAT_DSD_U8:
362 case SNDRV_PCM_FORMAT_DSD_U16_LE:
363 case SNDRV_PCM_FORMAT_DSD_U16_BE:
364 case SNDRV_PCM_FORMAT_DSD_U32_LE:
365 case SNDRV_PCM_FORMAT_DSD_U32_BE:
366 dsd_bclk = nfs1 * params_physical_width(params);
367 switch (dsd_bclk) {
368 case 2822400:
369 dsdsel0 = 0;
370 dsdsel1 = 0;
371 break;
372 case 5644800:
373 dsdsel0 = 1;
374 dsdsel1 = 0;
375 break;
376 case 11289600:
377 dsdsel0 = 0;
378 dsdsel1 = 1;
379 break;
380 case 22579200:
381 if (ak4458->drvdata->type == AK4497) {
382 dsdsel0 = 1;
383 dsdsel1 = 1;
384 } else {
385 dev_err(dai->dev, "DSD512 not supported.\n");
386 return -EINVAL;
387 }
388 break;
389 default:
390 dev_err(dai->dev, "Unsupported dsd bclk.\n");
391 return -EINVAL;
392 }
393
394 snd_soc_component_update_bits(component, AK4458_06_DSD1,
395 AK4458_DSDSEL_MASK, dsdsel0);
396 snd_soc_component_update_bits(component, AK4458_09_DSD2,
397 AK4458_DSDSEL_MASK, dsdsel1);
398 break;
399 }
400
401
402 snd_soc_component_update_bits(component, AK4458_00_CONTROL1, 0x80, 0x80);
403
404 switch (pcm_width) {
405 case 16:
406 if (ak4458->fmt == SND_SOC_DAIFMT_I2S)
407 format = AK4458_DIF_24BIT_I2S;
408 else
409 format = AK4458_DIF_16BIT_LSB;
410 break;
411 case 32:
412 switch (ak4458->fmt) {
413 case SND_SOC_DAIFMT_I2S:
414 format = AK4458_DIF_32BIT_I2S;
415 break;
416 case SND_SOC_DAIFMT_LEFT_J:
417 format = AK4458_DIF_32BIT_MSB;
418 break;
419 case SND_SOC_DAIFMT_RIGHT_J:
420 format = AK4458_DIF_32BIT_LSB;
421 break;
422 case SND_SOC_DAIFMT_DSP_B:
423 format = AK4458_DIF_32BIT_MSB;
424 break;
425 case SND_SOC_DAIFMT_PDM:
426 format = AK4458_DIF_32BIT_MSB;
427 break;
428 default:
429 return -EINVAL;
430 }
431 break;
432 default:
433 return -EINVAL;
434 }
435
436 snd_soc_component_update_bits(component, AK4458_00_CONTROL1,
437 AK4458_DIF_MASK, format);
438
439
440
441
442
443 dchn = ak4458_get_tdm_mode(ak4458) &&
444 (ak4458->fmt == SND_SOC_DAIFMT_DSP_B) &&
445 (channels > channels_max) ? AK4458_DCHAIN_MASK : 0;
446
447 snd_soc_component_update_bits(component, AK4458_0B_CONTROL7,
448 AK4458_DCHAIN_MASK, dchn);
449
450 ret = ak4458_rstn_control(component, 0);
451 if (ret)
452 return ret;
453
454 ret = ak4458_rstn_control(component, 1);
455 if (ret)
456 return ret;
457
458 return 0;
459}
460
461static int ak4458_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
462{
463 struct snd_soc_component *component = dai->component;
464 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
465 int ret;
466
467 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
468 case SND_SOC_DAIFMT_CBS_CFS:
469 break;
470 case SND_SOC_DAIFMT_CBM_CFM:
471 case SND_SOC_DAIFMT_CBS_CFM:
472 case SND_SOC_DAIFMT_CBM_CFS:
473 default:
474 dev_err(component->dev, "Master mode unsupported\n");
475 return -EINVAL;
476 }
477
478 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
479 case SND_SOC_DAIFMT_I2S:
480 case SND_SOC_DAIFMT_LEFT_J:
481 case SND_SOC_DAIFMT_RIGHT_J:
482 case SND_SOC_DAIFMT_DSP_B:
483 case SND_SOC_DAIFMT_PDM:
484 ak4458->fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
485 break;
486 default:
487 dev_err(component->dev, "Audio format 0x%02X unsupported\n",
488 fmt & SND_SOC_DAIFMT_FORMAT_MASK);
489 return -EINVAL;
490 }
491
492
493 snd_soc_component_update_bits(component, AK4458_02_CONTROL3,
494 AK4458_DP_MASK,
495 ak4458->fmt == SND_SOC_DAIFMT_PDM ?
496 AK4458_DP_MASK : 0);
497
498 ret = ak4458_rstn_control(component, 0);
499 if (ret)
500 return ret;
501
502 ret = ak4458_rstn_control(component, 1);
503 if (ret)
504 return ret;
505
506 return 0;
507}
508
509static const int att_speed[] = { 4080, 2040, 510, 255 };
510
511static int ak4458_set_dai_mute(struct snd_soc_dai *dai, int mute, int direction)
512{
513 struct snd_soc_component *component = dai->component;
514 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
515 int nfs, ndt, reg;
516 int ats;
517
518 nfs = ak4458->fs;
519
520 reg = snd_soc_component_read(component, AK4458_0B_CONTROL7);
521 ats = (reg & AK4458_ATS_MASK) >> AK4458_ATS_SHIFT;
522
523 ndt = att_speed[ats] / (nfs / 1000);
524
525 if (mute) {
526 snd_soc_component_update_bits(component, AK4458_01_CONTROL2, 0x01, 1);
527 mdelay(ndt);
528 if (ak4458->mute_gpiod)
529 gpiod_set_value_cansleep(ak4458->mute_gpiod, 1);
530 } else {
531 if (ak4458->mute_gpiod)
532 gpiod_set_value_cansleep(ak4458->mute_gpiod, 0);
533 snd_soc_component_update_bits(component, AK4458_01_CONTROL2, 0x01, 0);
534 mdelay(ndt);
535 }
536
537 return 0;
538}
539
540static int ak4458_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
541 unsigned int rx_mask, int slots, int slot_width)
542{
543 struct snd_soc_component *component = dai->component;
544 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
545 int mode;
546
547 ak4458->slots = slots;
548 ak4458->slot_width = slot_width;
549
550 mode = ak4458_get_tdm_mode(ak4458) << AK4458_MODE_SHIFT;
551
552 snd_soc_component_update_bits(component, AK4458_0A_CONTROL6,
553 AK4458_MODE_MASK,
554 mode);
555
556 return 0;
557}
558
559#define AK4458_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
560 SNDRV_PCM_FMTBIT_S24_LE |\
561 SNDRV_PCM_FMTBIT_S32_LE |\
562 SNDRV_PCM_FMTBIT_DSD_U8 |\
563 SNDRV_PCM_FMTBIT_DSD_U16_LE |\
564 SNDRV_PCM_FMTBIT_DSD_U32_LE)
565
566static const unsigned int ak4458_rates[] = {
567 8000, 11025, 16000, 22050,
568 32000, 44100, 48000, 88200,
569 96000, 176400, 192000, 352800,
570 384000, 705600, 768000, 1411200,
571 2822400,
572};
573
574static const struct snd_pcm_hw_constraint_list ak4458_rate_constraints = {
575 .count = ARRAY_SIZE(ak4458_rates),
576 .list = ak4458_rates,
577};
578
579static int ak4458_startup(struct snd_pcm_substream *substream,
580 struct snd_soc_dai *dai)
581{
582 int ret;
583
584 ret = snd_pcm_hw_constraint_list(substream->runtime, 0,
585 SNDRV_PCM_HW_PARAM_RATE,
586 &ak4458_rate_constraints);
587
588 return ret;
589}
590
591static const struct snd_soc_dai_ops ak4458_dai_ops = {
592 .startup = ak4458_startup,
593 .hw_params = ak4458_hw_params,
594 .set_fmt = ak4458_set_dai_fmt,
595 .mute_stream = ak4458_set_dai_mute,
596 .set_tdm_slot = ak4458_set_tdm_slot,
597 .no_capture_mute = 1,
598};
599
600static struct snd_soc_dai_driver ak4458_dai = {
601 .name = "ak4458-aif",
602 .playback = {
603 .stream_name = "Playback",
604 .channels_min = 1,
605 .channels_max = 8,
606 .rates = SNDRV_PCM_RATE_KNOT,
607 .formats = AK4458_FORMATS,
608 },
609 .ops = &ak4458_dai_ops,
610};
611
612static struct snd_soc_dai_driver ak4497_dai = {
613 .name = "ak4497-aif",
614 .playback = {
615 .stream_name = "Playback",
616 .channels_min = 1,
617 .channels_max = 2,
618 .rates = SNDRV_PCM_RATE_KNOT,
619 .formats = AK4458_FORMATS,
620 },
621 .ops = &ak4458_dai_ops,
622};
623
624static void ak4458_reset(struct ak4458_priv *ak4458, bool active)
625{
626 if (ak4458->reset_gpiod) {
627 gpiod_set_value_cansleep(ak4458->reset_gpiod, active);
628 usleep_range(1000, 2000);
629 }
630}
631
632static int ak4458_init(struct snd_soc_component *component)
633{
634 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
635 int ret;
636
637
638 if (ak4458->mute_gpiod)
639 gpiod_set_value_cansleep(ak4458->mute_gpiod, 1);
640
641 ak4458_reset(ak4458, false);
642
643 ret = snd_soc_component_update_bits(component, AK4458_00_CONTROL1,
644 0x80, 0x80);
645 if (ret < 0)
646 return ret;
647
648 if (ak4458->drvdata->type == AK4497) {
649 ret = snd_soc_component_update_bits(component, AK4458_09_DSD2,
650 0x4, (ak4458->dsd_path << 2));
651 if (ret < 0)
652 return ret;
653 }
654
655 return ak4458_rstn_control(component, 1);
656}
657
658static int ak4458_probe(struct snd_soc_component *component)
659{
660 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
661
662 ak4458->fs = 48000;
663
664 return ak4458_init(component);
665}
666
667static void ak4458_remove(struct snd_soc_component *component)
668{
669 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
670
671 ak4458_reset(ak4458, true);
672}
673
674#ifdef CONFIG_PM
675static int __maybe_unused ak4458_runtime_suspend(struct device *dev)
676{
677 struct ak4458_priv *ak4458 = dev_get_drvdata(dev);
678
679 regcache_cache_only(ak4458->regmap, true);
680
681 ak4458_reset(ak4458, true);
682
683 if (ak4458->mute_gpiod)
684 gpiod_set_value_cansleep(ak4458->mute_gpiod, 0);
685
686 regulator_bulk_disable(ARRAY_SIZE(ak4458->supplies),
687 ak4458->supplies);
688 return 0;
689}
690
691static int __maybe_unused ak4458_runtime_resume(struct device *dev)
692{
693 struct ak4458_priv *ak4458 = dev_get_drvdata(dev);
694 int ret;
695
696 ret = regulator_bulk_enable(ARRAY_SIZE(ak4458->supplies),
697 ak4458->supplies);
698 if (ret != 0) {
699 dev_err(ak4458->dev, "Failed to enable supplies: %d\n", ret);
700 return ret;
701 }
702
703 if (ak4458->mute_gpiod)
704 gpiod_set_value_cansleep(ak4458->mute_gpiod, 1);
705
706 ak4458_reset(ak4458, true);
707 ak4458_reset(ak4458, false);
708
709 regcache_cache_only(ak4458->regmap, false);
710 regcache_mark_dirty(ak4458->regmap);
711
712 return regcache_sync(ak4458->regmap);
713}
714#endif
715
716static const struct snd_soc_component_driver soc_codec_dev_ak4458 = {
717 .probe = ak4458_probe,
718 .remove = ak4458_remove,
719 .controls = ak4458_snd_controls,
720 .num_controls = ARRAY_SIZE(ak4458_snd_controls),
721 .dapm_widgets = ak4458_dapm_widgets,
722 .num_dapm_widgets = ARRAY_SIZE(ak4458_dapm_widgets),
723 .dapm_routes = ak4458_intercon,
724 .num_dapm_routes = ARRAY_SIZE(ak4458_intercon),
725 .idle_bias_on = 1,
726 .use_pmdown_time = 1,
727 .endianness = 1,
728 .non_legacy_dai_naming = 1,
729};
730
731static const struct snd_soc_component_driver soc_codec_dev_ak4497 = {
732 .probe = ak4458_probe,
733 .remove = ak4458_remove,
734 .controls = ak4497_snd_controls,
735 .num_controls = ARRAY_SIZE(ak4497_snd_controls),
736 .dapm_widgets = ak4497_dapm_widgets,
737 .num_dapm_widgets = ARRAY_SIZE(ak4497_dapm_widgets),
738 .dapm_routes = ak4497_intercon,
739 .num_dapm_routes = ARRAY_SIZE(ak4497_intercon),
740 .idle_bias_on = 1,
741 .use_pmdown_time = 1,
742 .endianness = 1,
743 .non_legacy_dai_naming = 1,
744};
745
746static const struct regmap_config ak4458_regmap = {
747 .reg_bits = 8,
748 .val_bits = 8,
749
750 .max_register = AK4458_14_R4CHATT,
751 .reg_defaults = ak4458_reg_defaults,
752 .num_reg_defaults = ARRAY_SIZE(ak4458_reg_defaults),
753 .cache_type = REGCACHE_RBTREE,
754};
755
756static const struct ak4458_drvdata ak4458_drvdata = {
757 .dai_drv = &ak4458_dai,
758 .comp_drv = &soc_codec_dev_ak4458,
759 .type = AK4458,
760};
761
762static const struct ak4458_drvdata ak4497_drvdata = {
763 .dai_drv = &ak4497_dai,
764 .comp_drv = &soc_codec_dev_ak4497,
765 .type = AK4497,
766};
767
768static const struct dev_pm_ops ak4458_pm = {
769 SET_RUNTIME_PM_OPS(ak4458_runtime_suspend, ak4458_runtime_resume, NULL)
770 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
771 pm_runtime_force_resume)
772};
773
774static int ak4458_i2c_probe(struct i2c_client *i2c)
775{
776 struct ak4458_priv *ak4458;
777 int ret, i;
778
779 ak4458 = devm_kzalloc(&i2c->dev, sizeof(*ak4458), GFP_KERNEL);
780 if (!ak4458)
781 return -ENOMEM;
782
783 ak4458->regmap = devm_regmap_init_i2c(i2c, &ak4458_regmap);
784 if (IS_ERR(ak4458->regmap))
785 return PTR_ERR(ak4458->regmap);
786
787 i2c_set_clientdata(i2c, ak4458);
788 ak4458->dev = &i2c->dev;
789
790 ak4458->drvdata = of_device_get_match_data(&i2c->dev);
791
792 ak4458->reset_gpiod = devm_gpiod_get_optional(ak4458->dev, "reset",
793 GPIOD_OUT_LOW);
794 if (IS_ERR(ak4458->reset_gpiod))
795 return PTR_ERR(ak4458->reset_gpiod);
796
797 ak4458->mute_gpiod = devm_gpiod_get_optional(ak4458->dev, "mute",
798 GPIOD_OUT_LOW);
799 if (IS_ERR(ak4458->mute_gpiod))
800 return PTR_ERR(ak4458->mute_gpiod);
801
802
803 of_property_read_u32(i2c->dev.of_node, "dsd-path", &ak4458->dsd_path);
804
805 for (i = 0; i < ARRAY_SIZE(ak4458->supplies); i++)
806 ak4458->supplies[i].supply = ak4458_supply_names[i];
807
808 ret = devm_regulator_bulk_get(ak4458->dev, ARRAY_SIZE(ak4458->supplies),
809 ak4458->supplies);
810 if (ret != 0) {
811 dev_err(ak4458->dev, "Failed to request supplies: %d\n", ret);
812 return ret;
813 }
814
815 ret = devm_snd_soc_register_component(ak4458->dev,
816 ak4458->drvdata->comp_drv,
817 ak4458->drvdata->dai_drv, 1);
818 if (ret < 0) {
819 dev_err(ak4458->dev, "Failed to register CODEC: %d\n", ret);
820 return ret;
821 }
822
823 pm_runtime_enable(&i2c->dev);
824 regcache_cache_only(ak4458->regmap, true);
825
826 return 0;
827}
828
829static int ak4458_i2c_remove(struct i2c_client *i2c)
830{
831 pm_runtime_disable(&i2c->dev);
832
833 return 0;
834}
835
836static const struct of_device_id ak4458_of_match[] = {
837 { .compatible = "asahi-kasei,ak4458", .data = &ak4458_drvdata},
838 { .compatible = "asahi-kasei,ak4497", .data = &ak4497_drvdata},
839 { },
840};
841MODULE_DEVICE_TABLE(of, ak4458_of_match);
842
843static struct i2c_driver ak4458_i2c_driver = {
844 .driver = {
845 .name = "ak4458",
846 .pm = &ak4458_pm,
847 .of_match_table = ak4458_of_match,
848 },
849 .probe_new = ak4458_i2c_probe,
850 .remove = ak4458_i2c_remove,
851};
852
853module_i2c_driver(ak4458_i2c_driver);
854
855MODULE_AUTHOR("Junichi Wakasugi <wakasugi.jb@om.asahi-kasei.co.jp>");
856MODULE_AUTHOR("Mihai Serban <mihai.serban@nxp.com>");
857MODULE_DESCRIPTION("ASoC AK4458 DAC driver");
858MODULE_LICENSE("GPL v2");
859
