1 // SPDX-License-Identifier: GPL-2.0
3 // Audio driver for AK4458 DAC
5 // Copyright (C) 2016 Asahi Kasei Microdevices Corporation
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>
25 #define AK4458_NUM_SUPPLIES 2
26 static const char *ak4458_supply_names[AK4458_NUM_SUPPLIES] = {
36 struct ak4458_drvdata {
37 struct snd_soc_dai_driver *dai_drv;
38 const struct snd_soc_component_driver *comp_drv;
39 enum ak4458_type type;
42 /* AK4458 Codec Private Data */
44 struct regulator_bulk_data supplies[AK4458_NUM_SUPPLIES];
45 const struct ak4458_drvdata *drvdata;
47 struct regmap *regmap;
48 struct gpio_desc *reset_gpiod;
49 struct gpio_desc *mute_gpiod;
50 int digfil; /* SSLOW, SD, SLOW bits */
51 int fs; /* sampling rate */
55 u32 dsd_path; /* For ak4497 */
58 static const struct reg_default ak4458_reg_defaults[] = {
59 { 0x00, 0x0C }, /* 0x00 AK4458_00_CONTROL1 */
60 { 0x01, 0x22 }, /* 0x01 AK4458_01_CONTROL2 */
61 { 0x02, 0x00 }, /* 0x02 AK4458_02_CONTROL3 */
62 { 0x03, 0xFF }, /* 0x03 AK4458_03_LCHATT */
63 { 0x04, 0xFF }, /* 0x04 AK4458_04_RCHATT */
64 { 0x05, 0x00 }, /* 0x05 AK4458_05_CONTROL4 */
65 { 0x06, 0x00 }, /* 0x06 AK4458_06_DSD1 */
66 { 0x07, 0x03 }, /* 0x07 AK4458_07_CONTROL5 */
67 { 0x08, 0x00 }, /* 0x08 AK4458_08_SOUND_CONTROL */
68 { 0x09, 0x00 }, /* 0x09 AK4458_09_DSD2 */
69 { 0x0A, 0x0D }, /* 0x0A AK4458_0A_CONTROL6 */
70 { 0x0B, 0x0C }, /* 0x0B AK4458_0B_CONTROL7 */
71 { 0x0C, 0x00 }, /* 0x0C AK4458_0C_CONTROL8 */
72 { 0x0D, 0x00 }, /* 0x0D AK4458_0D_CONTROL9 */
73 { 0x0E, 0x50 }, /* 0x0E AK4458_0E_CONTROL10 */
74 { 0x0F, 0xFF }, /* 0x0F AK4458_0F_L2CHATT */
75 { 0x10, 0xFF }, /* 0x10 AK4458_10_R2CHATT */
76 { 0x11, 0xFF }, /* 0x11 AK4458_11_L3CHATT */
77 { 0x12, 0xFF }, /* 0x12 AK4458_12_R3CHATT */
78 { 0x13, 0xFF }, /* 0x13 AK4458_13_L4CHATT */
79 { 0x14, 0xFF }, /* 0x14 AK4458_14_R4CHATT */
84 * from -127 to 0 dB in 0.5 dB steps (mute instead of -127.5 dB)
86 static DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
89 * DEM1 bit DEM0 bit Mode
95 static const char * const ak4458_dem_select_texts[] = {
96 "44.1kHz", "OFF", "48kHz", "32kHz"
100 * SSLOW, SD, SLOW bits Digital Filter Setting
101 * 0, 0, 0 : Sharp Roll-Off Filter
102 * 0, 0, 1 : Slow Roll-Off Filter
103 * 0, 1, 0 : Short delay Sharp Roll-Off Filter
104 * 0, 1, 1 : Short delay Slow Roll-Off Filter
105 * 1, *, * : Super Slow Roll-Off Filter
107 static 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"
116 * DZFB: Inverting Enable of DZF
117 * 0: DZF goes H at Zero Detection
118 * 1: DZF goes L at Zero Detection
120 static const char * const ak4458_dzfb_select_texts[] = {"H", "L"};
123 * SC1-0 bits: Sound Mode Setting
129 static const char * const ak4458_sc_select_texts[] = {
130 "Sound Mode 0", "Sound Mode 1", "Sound Mode 2"
133 /* FIR2-0 bits: FIR Filter Mode Setting */
134 static 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",
139 /* ATS1-0 bits Attenuation Speed */
140 static const char * const ak4458_ats_select_texts[] = {
141 "4080/fs", "2040/fs", "510/fs", "255/fs",
144 /* DIF2 bit Audio Interface Format Setting(BICK fs) */
145 static const char * const ak4458_dif_select_texts[] = {"32fs,48fs", "64fs",};
147 static 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);
151 static 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);
155 static 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);
159 static 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);
163 static const struct soc_enum ak4458_digfil_enum =
164 SOC_ENUM_SINGLE_EXT(ARRAY_SIZE(ak4458_digfil_select_texts),
165 ak4458_digfil_select_texts);
166 static 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);
170 static 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);
174 static 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);
178 static 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);
182 static 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);
187 static int get_digfil(struct snd_kcontrol *kcontrol,
188 struct snd_ctl_elem_value *ucontrol)
190 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
191 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
193 ucontrol->value.enumerated.item[0] = ak4458->digfil;
198 static int set_digfil(struct snd_kcontrol *kcontrol,
199 struct snd_ctl_elem_value *ucontrol)
201 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
202 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
205 num = ucontrol->value.enumerated.item[0];
209 ak4458->digfil = num;
212 snd_soc_component_update_bits(component, AK4458_01_CONTROL2,
214 ((ak4458->digfil & 0x02) << 4));
217 snd_soc_component_update_bits(component, AK4458_02_CONTROL3,
219 (ak4458->digfil & 0x01));
221 /* write SSLOW bit */
222 snd_soc_component_update_bits(component, AK4458_05_CONTROL4,
224 ((ak4458->digfil & 0x04) >> 2));
229 static 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",
249 SOC_ENUM("AK4458 BICK fs Setting", ak4458_dif_enum),
252 /* ak4458 dapm widgets */
253 static const struct snd_soc_dapm_widget ak4458_dapm_widgets[] = {
254 SND_SOC_DAPM_DAC("AK4458 DAC1", NULL, AK4458_0A_CONTROL6, 2, 0),/*pw*/
255 SND_SOC_DAPM_AIF_IN("AK4458 SDTI", "Playback", 0, SND_SOC_NOPM, 0, 0),
256 SND_SOC_DAPM_OUTPUT("AK4458 AOUTA"),
258 SND_SOC_DAPM_DAC("AK4458 DAC2", NULL, AK4458_0A_CONTROL6, 3, 0),/*pw*/
259 SND_SOC_DAPM_OUTPUT("AK4458 AOUTB"),
261 SND_SOC_DAPM_DAC("AK4458 DAC3", NULL, AK4458_0B_CONTROL7, 2, 0),/*pw*/
262 SND_SOC_DAPM_OUTPUT("AK4458 AOUTC"),
264 SND_SOC_DAPM_DAC("AK4458 DAC4", NULL, AK4458_0B_CONTROL7, 3, 0),/*pw*/
265 SND_SOC_DAPM_OUTPUT("AK4458 AOUTD"),
268 static const struct snd_soc_dapm_route ak4458_intercon[] = {
269 {"AK4458 DAC1", NULL, "AK4458 SDTI"},
270 {"AK4458 AOUTA", NULL, "AK4458 DAC1"},
272 {"AK4458 DAC2", NULL, "AK4458 SDTI"},
273 {"AK4458 AOUTB", NULL, "AK4458 DAC2"},
275 {"AK4458 DAC3", NULL, "AK4458 SDTI"},
276 {"AK4458 AOUTC", NULL, "AK4458 DAC3"},
278 {"AK4458 DAC4", NULL, "AK4458 SDTI"},
279 {"AK4458 AOUTD", NULL, "AK4458 DAC4"},
282 /* ak4497 controls */
283 static 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",
295 /* ak4497 dapm widgets */
296 static 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"),
302 /* ak4497 dapm routes */
303 static const struct snd_soc_dapm_route ak4497_intercon[] = {
304 {"AK4497 DAC", NULL, "AK4497 SDTI"},
305 {"AK4497 AOUT", NULL, "AK4497 DAC"},
309 static int ak4458_rstn_control(struct snd_soc_component *component, int bit)
314 ret = snd_soc_component_update_bits(component,
319 ret = snd_soc_component_update_bits(component,
329 static int ak4458_hw_params(struct snd_pcm_substream *substream,
330 struct snd_pcm_hw_params *params,
331 struct snd_soc_dai *dai)
333 struct snd_soc_component *component = dai->component;
334 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
335 int pcm_width = max(params_physical_width(params), ak4458->slot_width);
336 u8 format, dsdsel0, dsdsel1;
339 nfs1 = params_rate(params);
342 /* calculate bit clock */
343 switch (params_format(params)) {
344 case SNDRV_PCM_FORMAT_DSD_U8:
345 case SNDRV_PCM_FORMAT_DSD_U16_LE:
346 case SNDRV_PCM_FORMAT_DSD_U16_BE:
347 case SNDRV_PCM_FORMAT_DSD_U32_LE:
348 case SNDRV_PCM_FORMAT_DSD_U32_BE:
349 dsd_bclk = nfs1 * params_physical_width(params);
364 if (ak4458->drvdata->type == AK4497) {
368 dev_err(dai->dev, "DSD512 not supported.\n");
373 dev_err(dai->dev, "Unsupported dsd bclk.\n");
377 snd_soc_component_update_bits(component, AK4458_06_DSD1,
378 AK4458_DSDSEL_MASK, dsdsel0);
379 snd_soc_component_update_bits(component, AK4458_09_DSD2,
380 AK4458_DSDSEL_MASK, dsdsel1);
384 /* Master Clock Frequency Auto Setting Mode Enable */
385 snd_soc_component_update_bits(component, AK4458_00_CONTROL1, 0x80, 0x80);
389 if (ak4458->fmt == SND_SOC_DAIFMT_I2S)
390 format = AK4458_DIF_24BIT_I2S;
392 format = AK4458_DIF_16BIT_LSB;
395 switch (ak4458->fmt) {
396 case SND_SOC_DAIFMT_I2S:
397 format = AK4458_DIF_32BIT_I2S;
399 case SND_SOC_DAIFMT_LEFT_J:
400 format = AK4458_DIF_32BIT_MSB;
402 case SND_SOC_DAIFMT_RIGHT_J:
403 format = AK4458_DIF_32BIT_LSB;
405 case SND_SOC_DAIFMT_DSP_B:
406 format = AK4458_DIF_32BIT_MSB;
408 case SND_SOC_DAIFMT_PDM:
409 format = AK4458_DIF_32BIT_MSB;
419 snd_soc_component_update_bits(component, AK4458_00_CONTROL1,
420 AK4458_DIF_MASK, format);
422 ak4458_rstn_control(component, 0);
423 ak4458_rstn_control(component, 1);
428 static int ak4458_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
430 struct snd_soc_component *component = dai->component;
431 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
433 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
434 case SND_SOC_DAIFMT_CBS_CFS: /* Slave Mode */
436 case SND_SOC_DAIFMT_CBM_CFM: /* Master Mode is not supported */
437 case SND_SOC_DAIFMT_CBS_CFM:
438 case SND_SOC_DAIFMT_CBM_CFS:
440 dev_err(component->dev, "Master mode unsupported\n");
444 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
445 case SND_SOC_DAIFMT_I2S:
446 case SND_SOC_DAIFMT_LEFT_J:
447 case SND_SOC_DAIFMT_RIGHT_J:
448 case SND_SOC_DAIFMT_DSP_B:
449 case SND_SOC_DAIFMT_PDM:
450 ak4458->fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
453 dev_err(component->dev, "Audio format 0x%02X unsupported\n",
454 fmt & SND_SOC_DAIFMT_FORMAT_MASK);
459 snd_soc_component_update_bits(component, AK4458_02_CONTROL3,
461 ak4458->fmt == SND_SOC_DAIFMT_PDM ?
464 ak4458_rstn_control(component, 0);
465 ak4458_rstn_control(component, 1);
470 static const int att_speed[] = { 4080, 2040, 510, 255 };
472 static int ak4458_set_dai_mute(struct snd_soc_dai *dai, int mute, int direction)
474 struct snd_soc_component *component = dai->component;
475 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
481 reg = snd_soc_component_read(component, AK4458_0B_CONTROL7);
482 ats = (reg & AK4458_ATS_MASK) >> AK4458_ATS_SHIFT;
484 ndt = att_speed[ats] / (nfs / 1000);
487 snd_soc_component_update_bits(component, AK4458_01_CONTROL2, 0x01, 1);
489 if (ak4458->mute_gpiod)
490 gpiod_set_value_cansleep(ak4458->mute_gpiod, 1);
492 if (ak4458->mute_gpiod)
493 gpiod_set_value_cansleep(ak4458->mute_gpiod, 0);
494 snd_soc_component_update_bits(component, AK4458_01_CONTROL2, 0x01, 0);
501 static int ak4458_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
502 unsigned int rx_mask, int slots, int slot_width)
504 struct snd_soc_component *component = dai->component;
505 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
508 ak4458->slots = slots;
509 ak4458->slot_width = slot_width;
511 switch (slots * slot_width) {
513 mode = AK4458_MODE_TDM128;
516 mode = AK4458_MODE_TDM256;
519 mode = AK4458_MODE_TDM512;
522 mode = AK4458_MODE_NORMAL;
526 snd_soc_component_update_bits(component, AK4458_0A_CONTROL6,
533 #define AK4458_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
534 SNDRV_PCM_FMTBIT_S24_LE |\
535 SNDRV_PCM_FMTBIT_S32_LE |\
536 SNDRV_PCM_FMTBIT_DSD_U8 |\
537 SNDRV_PCM_FMTBIT_DSD_U16_LE |\
538 SNDRV_PCM_FMTBIT_DSD_U32_LE)
540 static const unsigned int ak4458_rates[] = {
541 8000, 11025, 16000, 22050,
542 32000, 44100, 48000, 88200,
543 96000, 176400, 192000, 352800,
544 384000, 705600, 768000, 1411200,
548 static const struct snd_pcm_hw_constraint_list ak4458_rate_constraints = {
549 .count = ARRAY_SIZE(ak4458_rates),
550 .list = ak4458_rates,
553 static int ak4458_startup(struct snd_pcm_substream *substream,
554 struct snd_soc_dai *dai)
558 ret = snd_pcm_hw_constraint_list(substream->runtime, 0,
559 SNDRV_PCM_HW_PARAM_RATE,
560 &ak4458_rate_constraints);
565 static const struct snd_soc_dai_ops ak4458_dai_ops = {
566 .startup = ak4458_startup,
567 .hw_params = ak4458_hw_params,
568 .set_fmt = ak4458_set_dai_fmt,
569 .mute_stream = ak4458_set_dai_mute,
570 .set_tdm_slot = ak4458_set_tdm_slot,
571 .no_capture_mute = 1,
574 static struct snd_soc_dai_driver ak4458_dai = {
575 .name = "ak4458-aif",
577 .stream_name = "Playback",
580 .rates = SNDRV_PCM_RATE_KNOT,
581 .formats = AK4458_FORMATS,
583 .ops = &ak4458_dai_ops,
586 static struct snd_soc_dai_driver ak4497_dai = {
587 .name = "ak4497-aif",
589 .stream_name = "Playback",
592 .rates = SNDRV_PCM_RATE_KNOT,
593 .formats = AK4458_FORMATS,
595 .ops = &ak4458_dai_ops,
598 static void ak4458_reset(struct ak4458_priv *ak4458, bool active)
600 if (ak4458->reset_gpiod) {
601 gpiod_set_value_cansleep(ak4458->reset_gpiod, active);
602 usleep_range(1000, 2000);
606 static int ak4458_init(struct snd_soc_component *component)
608 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
611 /* External Mute ON */
612 if (ak4458->mute_gpiod)
613 gpiod_set_value_cansleep(ak4458->mute_gpiod, 1);
615 ak4458_reset(ak4458, false);
617 ret = snd_soc_component_update_bits(component, AK4458_00_CONTROL1,
618 0x80, 0x80); /* ACKS bit = 1; 10000000 */
622 if (ak4458->drvdata->type == AK4497) {
623 ret = snd_soc_component_update_bits(component, AK4458_09_DSD2,
624 0x4, (ak4458->dsd_path << 2));
629 return ak4458_rstn_control(component, 1);
632 static int ak4458_probe(struct snd_soc_component *component)
634 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
638 return ak4458_init(component);
641 static void ak4458_remove(struct snd_soc_component *component)
643 struct ak4458_priv *ak4458 = snd_soc_component_get_drvdata(component);
645 ak4458_reset(ak4458, true);
649 static int __maybe_unused ak4458_runtime_suspend(struct device *dev)
651 struct ak4458_priv *ak4458 = dev_get_drvdata(dev);
653 regcache_cache_only(ak4458->regmap, true);
655 ak4458_reset(ak4458, true);
657 if (ak4458->mute_gpiod)
658 gpiod_set_value_cansleep(ak4458->mute_gpiod, 0);
660 regulator_bulk_disable(ARRAY_SIZE(ak4458->supplies),
665 static int __maybe_unused ak4458_runtime_resume(struct device *dev)
667 struct ak4458_priv *ak4458 = dev_get_drvdata(dev);
670 ret = regulator_bulk_enable(ARRAY_SIZE(ak4458->supplies),
673 dev_err(ak4458->dev, "Failed to enable supplies: %d\n", ret);
677 if (ak4458->mute_gpiod)
678 gpiod_set_value_cansleep(ak4458->mute_gpiod, 1);
680 ak4458_reset(ak4458, true);
681 ak4458_reset(ak4458, false);
683 regcache_cache_only(ak4458->regmap, false);
684 regcache_mark_dirty(ak4458->regmap);
686 return regcache_sync(ak4458->regmap);
688 #endif /* CONFIG_PM */
690 static const struct snd_soc_component_driver soc_codec_dev_ak4458 = {
691 .probe = ak4458_probe,
692 .remove = ak4458_remove,
693 .controls = ak4458_snd_controls,
694 .num_controls = ARRAY_SIZE(ak4458_snd_controls),
695 .dapm_widgets = ak4458_dapm_widgets,
696 .num_dapm_widgets = ARRAY_SIZE(ak4458_dapm_widgets),
697 .dapm_routes = ak4458_intercon,
698 .num_dapm_routes = ARRAY_SIZE(ak4458_intercon),
700 .use_pmdown_time = 1,
702 .non_legacy_dai_naming = 1,
705 static const struct snd_soc_component_driver soc_codec_dev_ak4497 = {
706 .probe = ak4458_probe,
707 .remove = ak4458_remove,
708 .controls = ak4497_snd_controls,
709 .num_controls = ARRAY_SIZE(ak4497_snd_controls),
710 .dapm_widgets = ak4497_dapm_widgets,
711 .num_dapm_widgets = ARRAY_SIZE(ak4497_dapm_widgets),
712 .dapm_routes = ak4497_intercon,
713 .num_dapm_routes = ARRAY_SIZE(ak4497_intercon),
715 .use_pmdown_time = 1,
717 .non_legacy_dai_naming = 1,
720 static const struct regmap_config ak4458_regmap = {
724 .max_register = AK4458_14_R4CHATT,
725 .reg_defaults = ak4458_reg_defaults,
726 .num_reg_defaults = ARRAY_SIZE(ak4458_reg_defaults),
727 .cache_type = REGCACHE_RBTREE,
730 static const struct ak4458_drvdata ak4458_drvdata = {
731 .dai_drv = &ak4458_dai,
732 .comp_drv = &soc_codec_dev_ak4458,
736 static const struct ak4458_drvdata ak4497_drvdata = {
737 .dai_drv = &ak4497_dai,
738 .comp_drv = &soc_codec_dev_ak4497,
742 static const struct dev_pm_ops ak4458_pm = {
743 SET_RUNTIME_PM_OPS(ak4458_runtime_suspend, ak4458_runtime_resume, NULL)
744 SET_SYSTEM_SLEEP_PM_OPS(pm_runtime_force_suspend,
745 pm_runtime_force_resume)
748 static int ak4458_i2c_probe(struct i2c_client *i2c)
750 struct ak4458_priv *ak4458;
753 ak4458 = devm_kzalloc(&i2c->dev, sizeof(*ak4458), GFP_KERNEL);
757 ak4458->regmap = devm_regmap_init_i2c(i2c, &ak4458_regmap);
758 if (IS_ERR(ak4458->regmap))
759 return PTR_ERR(ak4458->regmap);
761 i2c_set_clientdata(i2c, ak4458);
762 ak4458->dev = &i2c->dev;
764 ak4458->drvdata = of_device_get_match_data(&i2c->dev);
766 ak4458->reset_gpiod = devm_gpiod_get_optional(ak4458->dev, "reset",
768 if (IS_ERR(ak4458->reset_gpiod))
769 return PTR_ERR(ak4458->reset_gpiod);
771 ak4458->mute_gpiod = devm_gpiod_get_optional(ak4458->dev, "mute",
773 if (IS_ERR(ak4458->mute_gpiod))
774 return PTR_ERR(ak4458->mute_gpiod);
776 /* Optional property for ak4497 */
777 of_property_read_u32(i2c->dev.of_node, "dsd-path", &ak4458->dsd_path);
779 for (i = 0; i < ARRAY_SIZE(ak4458->supplies); i++)
780 ak4458->supplies[i].supply = ak4458_supply_names[i];
782 ret = devm_regulator_bulk_get(ak4458->dev, ARRAY_SIZE(ak4458->supplies),
785 dev_err(ak4458->dev, "Failed to request supplies: %d\n", ret);
789 ret = devm_snd_soc_register_component(ak4458->dev,
790 ak4458->drvdata->comp_drv,
791 ak4458->drvdata->dai_drv, 1);
793 dev_err(ak4458->dev, "Failed to register CODEC: %d\n", ret);
797 pm_runtime_enable(&i2c->dev);
798 regcache_cache_only(ak4458->regmap, true);
803 static int ak4458_i2c_remove(struct i2c_client *i2c)
805 pm_runtime_disable(&i2c->dev);
810 static const struct of_device_id ak4458_of_match[] = {
811 { .compatible = "asahi-kasei,ak4458", .data = &ak4458_drvdata},
812 { .compatible = "asahi-kasei,ak4497", .data = &ak4497_drvdata},
816 static struct i2c_driver ak4458_i2c_driver = {
820 .of_match_table = ak4458_of_match,
822 .probe_new = ak4458_i2c_probe,
823 .remove = ak4458_i2c_remove,
826 module_i2c_driver(ak4458_i2c_driver);
828 MODULE_AUTHOR("Junichi Wakasugi <wakasugi.jb@om.asahi-kasei.co.jp>");
829 MODULE_AUTHOR("Mihai Serban <mihai.serban@nxp.com>");
830 MODULE_DESCRIPTION("ASoC AK4458 DAC driver");
831 MODULE_LICENSE("GPL v2");