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Kuninori Morimotob0757062015-09-15 08:26:36 +00001/*
2 * ak4613.c -- Asahi Kasei ALSA Soc Audio driver
3 *
4 * Copyright (C) 2015 Renesas Electronics Corporation
5 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
6 *
7 * Based on ak4642.c by Kuninori Morimoto
8 * Based on wm8731.c by Richard Purdie
9 * Based on ak4535.c by Richard Purdie
10 * Based on wm8753.c by Liam Girdwood
11 *
12 * This program is free software; you can redistribute it and/or modify
13 * it under the terms of the GNU General Public License version 2 as
14 * published by the Free Software Foundation.
15 */
16
17#include <linux/clk.h>
18#include <linux/i2c.h>
19#include <linux/slab.h>
20#include <linux/of_device.h>
21#include <linux/module.h>
22#include <linux/regmap.h>
23#include <sound/soc.h>
24#include <sound/pcm_params.h>
Kuninori Morimotoe3a4d952015-09-18 00:52:44 +000025#include <sound/tlv.h>
Kuninori Morimotob0757062015-09-15 08:26:36 +000026
27#define PW_MGMT1 0x00 /* Power Management 1 */
28#define PW_MGMT2 0x01 /* Power Management 2 */
29#define PW_MGMT3 0x02 /* Power Management 3 */
30#define CTRL1 0x03 /* Control 1 */
31#define CTRL2 0x04 /* Control 2 */
32#define DEMP1 0x05 /* De-emphasis1 */
33#define DEMP2 0x06 /* De-emphasis2 */
34#define OFD 0x07 /* Overflow Detect */
35#define ZRD 0x08 /* Zero Detect */
36#define ICTRL 0x09 /* Input Control */
37#define OCTRL 0x0a /* Output Control */
38#define LOUT1 0x0b /* LOUT1 Volume Control */
39#define ROUT1 0x0c /* ROUT1 Volume Control */
40#define LOUT2 0x0d /* LOUT2 Volume Control */
41#define ROUT2 0x0e /* ROUT2 Volume Control */
42#define LOUT3 0x0f /* LOUT3 Volume Control */
43#define ROUT3 0x10 /* ROUT3 Volume Control */
44#define LOUT4 0x11 /* LOUT4 Volume Control */
45#define ROUT4 0x12 /* ROUT4 Volume Control */
46#define LOUT5 0x13 /* LOUT5 Volume Control */
47#define ROUT5 0x14 /* ROUT5 Volume Control */
48#define LOUT6 0x15 /* LOUT6 Volume Control */
49#define ROUT6 0x16 /* ROUT6 Volume Control */
50
51/* PW_MGMT1 */
52#define RSTN BIT(0)
53#define PMDAC BIT(1)
54#define PMADC BIT(2)
55#define PMVR BIT(3)
56
57/* PW_MGMT2 */
58#define PMAD_ALL 0x7
59
60/* PW_MGMT3 */
61#define PMDA_ALL 0x3f
62
63/* CTRL1 */
64#define DIF0 BIT(3)
65#define DIF1 BIT(4)
66#define DIF2 BIT(5)
67#define TDM0 BIT(6)
68#define TDM1 BIT(7)
69#define NO_FMT (0xff)
70#define FMT_MASK (0xf8)
71
72/* CTRL2 */
Kuninori Morimotob323dd32015-11-17 08:28:56 +000073#define DFS_MASK (3 << 2)
Kuninori Morimotob0757062015-09-15 08:26:36 +000074#define DFS_NORMAL_SPEED (0 << 2)
75#define DFS_DOUBLE_SPEED (1 << 2)
76#define DFS_QUAD_SPEED (2 << 2)
77
Kuninori Morimoto4898b612017-04-19 00:40:38 +000078/* ICTRL */
79#define ICTRL_MASK (0x3)
80
81/* OCTRL */
82#define OCTRL_MASK (0x3F)
83
Kuninori Morimotob0757062015-09-15 08:26:36 +000084struct ak4613_formats {
85 unsigned int width;
86 unsigned int fmt;
87};
88
89struct ak4613_interface {
90 struct ak4613_formats capture;
91 struct ak4613_formats playback;
92};
93
Kuninori Morimoto35299f12015-11-16 06:01:29 +000094struct ak4613_priv {
95 struct mutex lock;
96 const struct ak4613_interface *iface;
97
98 unsigned int fmt;
99 u8 oc;
100 u8 ic;
101 int cnt;
102};
103
Kuninori Morimotoe3a4d952015-09-18 00:52:44 +0000104/*
105 * Playback Volume
106 *
107 * max : 0x00 : 0 dB
108 * ( 0.5 dB step )
109 * min : 0xFE : -127.0 dB
110 * mute: 0xFF
111 */
112static const DECLARE_TLV_DB_SCALE(out_tlv, -12750, 50, 1);
113
114static const struct snd_kcontrol_new ak4613_snd_controls[] = {
115 SOC_DOUBLE_R_TLV("Digital Playback Volume1", LOUT1, ROUT1,
116 0, 0xFF, 1, out_tlv),
117 SOC_DOUBLE_R_TLV("Digital Playback Volume2", LOUT2, ROUT2,
118 0, 0xFF, 1, out_tlv),
119 SOC_DOUBLE_R_TLV("Digital Playback Volume3", LOUT3, ROUT3,
120 0, 0xFF, 1, out_tlv),
121 SOC_DOUBLE_R_TLV("Digital Playback Volume4", LOUT4, ROUT4,
122 0, 0xFF, 1, out_tlv),
123 SOC_DOUBLE_R_TLV("Digital Playback Volume5", LOUT5, ROUT5,
124 0, 0xFF, 1, out_tlv),
125 SOC_DOUBLE_R_TLV("Digital Playback Volume6", LOUT6, ROUT6,
126 0, 0xFF, 1, out_tlv),
127};
128
Kuninori Morimotob0757062015-09-15 08:26:36 +0000129static const struct reg_default ak4613_reg[] = {
130 { 0x0, 0x0f }, { 0x1, 0x07 }, { 0x2, 0x3f }, { 0x3, 0x20 },
131 { 0x4, 0x20 }, { 0x5, 0x55 }, { 0x6, 0x05 }, { 0x7, 0x07 },
132 { 0x8, 0x0f }, { 0x9, 0x07 }, { 0xa, 0x3f }, { 0xb, 0x00 },
133 { 0xc, 0x00 }, { 0xd, 0x00 }, { 0xe, 0x00 }, { 0xf, 0x00 },
134 { 0x10, 0x00 }, { 0x11, 0x00 }, { 0x12, 0x00 }, { 0x13, 0x00 },
135 { 0x14, 0x00 }, { 0x15, 0x00 }, { 0x16, 0x00 },
136};
137
Kuninori Morimoto35299f12015-11-16 06:01:29 +0000138#define AUDIO_IFACE_TO_VAL(fmts) ((fmts - ak4613_iface) << 3)
Kuninori Morimotob0757062015-09-15 08:26:36 +0000139#define AUDIO_IFACE(b, fmt) { b, SND_SOC_DAIFMT_##fmt }
140static const struct ak4613_interface ak4613_iface[] = {
141 /* capture */ /* playback */
Kuninori Morimotoec185f92017-05-08 02:28:13 +0000142 /* [0] - [2] are not supported */
Kuninori Morimotob0757062015-09-15 08:26:36 +0000143 [3] = { AUDIO_IFACE(24, LEFT_J), AUDIO_IFACE(24, LEFT_J) },
144 [4] = { AUDIO_IFACE(24, I2S), AUDIO_IFACE(24, I2S) },
145};
146
147static const struct regmap_config ak4613_regmap_cfg = {
148 .reg_bits = 8,
149 .val_bits = 8,
150 .max_register = 0x16,
151 .reg_defaults = ak4613_reg,
152 .num_reg_defaults = ARRAY_SIZE(ak4613_reg),
Geert Uytterhoevendcd2d1f2016-06-16 14:34:30 +0200153 .cache_type = REGCACHE_RBTREE,
Kuninori Morimotob0757062015-09-15 08:26:36 +0000154};
155
156static const struct of_device_id ak4613_of_match[] = {
157 { .compatible = "asahi-kasei,ak4613", .data = &ak4613_regmap_cfg },
158 {},
159};
160MODULE_DEVICE_TABLE(of, ak4613_of_match);
161
162static const struct i2c_device_id ak4613_i2c_id[] = {
163 { "ak4613", (kernel_ulong_t)&ak4613_regmap_cfg },
164 { }
165};
166MODULE_DEVICE_TABLE(i2c, ak4613_i2c_id);
167
168static const struct snd_soc_dapm_widget ak4613_dapm_widgets[] = {
169
170 /* Outputs */
171 SND_SOC_DAPM_OUTPUT("LOUT1"),
172 SND_SOC_DAPM_OUTPUT("LOUT2"),
173 SND_SOC_DAPM_OUTPUT("LOUT3"),
174 SND_SOC_DAPM_OUTPUT("LOUT4"),
175 SND_SOC_DAPM_OUTPUT("LOUT5"),
176 SND_SOC_DAPM_OUTPUT("LOUT6"),
177
178 SND_SOC_DAPM_OUTPUT("ROUT1"),
179 SND_SOC_DAPM_OUTPUT("ROUT2"),
180 SND_SOC_DAPM_OUTPUT("ROUT3"),
181 SND_SOC_DAPM_OUTPUT("ROUT4"),
182 SND_SOC_DAPM_OUTPUT("ROUT5"),
183 SND_SOC_DAPM_OUTPUT("ROUT6"),
184
185 /* Inputs */
186 SND_SOC_DAPM_INPUT("LIN1"),
187 SND_SOC_DAPM_INPUT("LIN2"),
188
189 SND_SOC_DAPM_INPUT("RIN1"),
190 SND_SOC_DAPM_INPUT("RIN2"),
191
192 /* DAC */
193 SND_SOC_DAPM_DAC("DAC1", NULL, PW_MGMT3, 0, 0),
194 SND_SOC_DAPM_DAC("DAC2", NULL, PW_MGMT3, 1, 0),
195 SND_SOC_DAPM_DAC("DAC3", NULL, PW_MGMT3, 2, 0),
196 SND_SOC_DAPM_DAC("DAC4", NULL, PW_MGMT3, 3, 0),
197 SND_SOC_DAPM_DAC("DAC5", NULL, PW_MGMT3, 4, 0),
198 SND_SOC_DAPM_DAC("DAC6", NULL, PW_MGMT3, 5, 0),
199
200 /* ADC */
201 SND_SOC_DAPM_ADC("ADC1", NULL, PW_MGMT2, 0, 0),
202 SND_SOC_DAPM_ADC("ADC2", NULL, PW_MGMT2, 1, 0),
203};
204
205static const struct snd_soc_dapm_route ak4613_intercon[] = {
206 {"LOUT1", NULL, "DAC1"},
207 {"LOUT2", NULL, "DAC2"},
208 {"LOUT3", NULL, "DAC3"},
209 {"LOUT4", NULL, "DAC4"},
210 {"LOUT5", NULL, "DAC5"},
211 {"LOUT6", NULL, "DAC6"},
212
213 {"ROUT1", NULL, "DAC1"},
214 {"ROUT2", NULL, "DAC2"},
215 {"ROUT3", NULL, "DAC3"},
216 {"ROUT4", NULL, "DAC4"},
217 {"ROUT5", NULL, "DAC5"},
218 {"ROUT6", NULL, "DAC6"},
219
220 {"DAC1", NULL, "Playback"},
221 {"DAC2", NULL, "Playback"},
222 {"DAC3", NULL, "Playback"},
223 {"DAC4", NULL, "Playback"},
224 {"DAC5", NULL, "Playback"},
225 {"DAC6", NULL, "Playback"},
226
227 {"Capture", NULL, "ADC1"},
228 {"Capture", NULL, "ADC2"},
229
230 {"ADC1", NULL, "LIN1"},
231 {"ADC2", NULL, "LIN2"},
232
233 {"ADC1", NULL, "RIN1"},
234 {"ADC2", NULL, "RIN2"},
235};
236
237static void ak4613_dai_shutdown(struct snd_pcm_substream *substream,
238 struct snd_soc_dai *dai)
239{
240 struct snd_soc_codec *codec = dai->codec;
241 struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
242 struct device *dev = codec->dev;
243
244 mutex_lock(&priv->lock);
245 priv->cnt--;
246 if (priv->cnt < 0) {
247 dev_err(dev, "unexpected counter error\n");
248 priv->cnt = 0;
249 }
250 if (!priv->cnt)
Kuninori Morimoto35299f12015-11-16 06:01:29 +0000251 priv->iface = NULL;
Kuninori Morimotob0757062015-09-15 08:26:36 +0000252 mutex_unlock(&priv->lock);
253}
254
Ryo Kodama41165292017-06-07 14:39:00 +0900255static int ak4613_dai_startup(struct snd_pcm_substream *substream,
256 struct snd_soc_dai *dai)
257{
258 struct snd_soc_codec *codec = dai->codec;
259 struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
260
261 priv->cnt++;
262
263 return 0;
264}
265
Kuninori Morimotob0757062015-09-15 08:26:36 +0000266static int ak4613_dai_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
267{
268 struct snd_soc_codec *codec = dai->codec;
269 struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
270
271 fmt &= SND_SOC_DAIFMT_FORMAT_MASK;
272
273 switch (fmt) {
Kuninori Morimotob0757062015-09-15 08:26:36 +0000274 case SND_SOC_DAIFMT_LEFT_J:
275 case SND_SOC_DAIFMT_I2S:
276 priv->fmt = fmt;
Kuninori Morimotob0757062015-09-15 08:26:36 +0000277 break;
278 default:
279 return -EINVAL;
280 }
281
282 return 0;
283}
284
Kuninori Morimoto35299f12015-11-16 06:01:29 +0000285static bool ak4613_dai_fmt_matching(const struct ak4613_interface *iface,
286 int is_play,
287 unsigned int fmt, unsigned int width)
288{
289 const struct ak4613_formats *fmts;
290
291 fmts = (is_play) ? &iface->playback : &iface->capture;
292
293 if (fmts->fmt != fmt)
294 return false;
295
Kuninori Morimotoec185f92017-05-08 02:28:13 +0000296 if (fmts->width != width)
297 return false;
Kuninori Morimoto35299f12015-11-16 06:01:29 +0000298
299 return true;
300}
301
Kuninori Morimotob0757062015-09-15 08:26:36 +0000302static int ak4613_dai_hw_params(struct snd_pcm_substream *substream,
303 struct snd_pcm_hw_params *params,
304 struct snd_soc_dai *dai)
305{
306 struct snd_soc_codec *codec = dai->codec;
307 struct ak4613_priv *priv = snd_soc_codec_get_drvdata(codec);
Kuninori Morimoto35299f12015-11-16 06:01:29 +0000308 const struct ak4613_interface *iface;
Kuninori Morimotob0757062015-09-15 08:26:36 +0000309 struct device *dev = codec->dev;
310 unsigned int width = params_width(params);
311 unsigned int fmt = priv->fmt;
312 unsigned int rate;
313 int is_play = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
314 int i, ret;
315 u8 fmt_ctrl, ctrl2;
316
317 rate = params_rate(params);
318 switch (rate) {
319 case 32000:
320 case 44100:
321 case 48000:
322 ctrl2 = DFS_NORMAL_SPEED;
323 break;
Kuninori Morimotoa83ac482017-06-14 00:31:06 +0000324 case 64000:
Kuninori Morimotob0757062015-09-15 08:26:36 +0000325 case 88200:
326 case 96000:
327 ctrl2 = DFS_DOUBLE_SPEED;
328 break;
329 case 176400:
330 case 192000:
331 ctrl2 = DFS_QUAD_SPEED;
332 break;
333 default:
334 return -EINVAL;
335 }
336
337 /*
338 * FIXME
339 *
340 * It doesn't support TDM at this point
341 */
342 fmt_ctrl = NO_FMT;
Kuninori Morimotob0757062015-09-15 08:26:36 +0000343 ret = -EINVAL;
Kuninori Morimoto35299f12015-11-16 06:01:29 +0000344 iface = NULL;
Kuninori Morimotob0757062015-09-15 08:26:36 +0000345
346 mutex_lock(&priv->lock);
Kuninori Morimoto35299f12015-11-16 06:01:29 +0000347 if (priv->iface) {
348 if (ak4613_dai_fmt_matching(priv->iface, is_play, fmt, width))
349 iface = priv->iface;
350 } else {
351 for (i = ARRAY_SIZE(ak4613_iface); i >= 0; i--) {
352 if (!ak4613_dai_fmt_matching(ak4613_iface + i,
353 is_play,
354 fmt, width))
355 continue;
356 iface = ak4613_iface + i;
357 break;
358 }
359 }
360
361 if ((priv->iface == NULL) ||
362 (priv->iface == iface)) {
363 priv->iface = iface;
Kuninori Morimotob0757062015-09-15 08:26:36 +0000364 ret = 0;
365 }
366 mutex_unlock(&priv->lock);
367
368 if (ret < 0)
369 goto hw_params_end;
370
Kuninori Morimoto35299f12015-11-16 06:01:29 +0000371 fmt_ctrl = AUDIO_IFACE_TO_VAL(iface);
372
Kuninori Morimotob0757062015-09-15 08:26:36 +0000373 snd_soc_update_bits(codec, CTRL1, FMT_MASK, fmt_ctrl);
Kuninori Morimotob323dd32015-11-17 08:28:56 +0000374 snd_soc_update_bits(codec, CTRL2, DFS_MASK, ctrl2);
Kuninori Morimotob0757062015-09-15 08:26:36 +0000375
Kuninori Morimoto4898b612017-04-19 00:40:38 +0000376 snd_soc_update_bits(codec, ICTRL, ICTRL_MASK, priv->ic);
377 snd_soc_update_bits(codec, OCTRL, OCTRL_MASK, priv->oc);
Kuninori Morimotoa3af0c62015-11-16 04:51:21 +0000378
Kuninori Morimotob0757062015-09-15 08:26:36 +0000379hw_params_end:
380 if (ret < 0)
381 dev_warn(dev, "unsupported data width/format combination\n");
382
383 return ret;
384}
385
386static int ak4613_set_bias_level(struct snd_soc_codec *codec,
387 enum snd_soc_bias_level level)
388{
389 u8 mgmt1 = 0;
390
391 switch (level) {
392 case SND_SOC_BIAS_ON:
393 mgmt1 |= RSTN;
394 /* fall through */
395 case SND_SOC_BIAS_PREPARE:
396 mgmt1 |= PMADC | PMDAC;
397 /* fall through */
398 case SND_SOC_BIAS_STANDBY:
399 mgmt1 |= PMVR;
400 /* fall through */
401 case SND_SOC_BIAS_OFF:
402 default:
403 break;
404 }
405
406 snd_soc_write(codec, PW_MGMT1, mgmt1);
407
408 return 0;
409}
410
411static const struct snd_soc_dai_ops ak4613_dai_ops = {
Ryo Kodama41165292017-06-07 14:39:00 +0900412 .startup = ak4613_dai_startup,
Kuninori Morimotob0757062015-09-15 08:26:36 +0000413 .shutdown = ak4613_dai_shutdown,
414 .set_fmt = ak4613_dai_set_fmt,
415 .hw_params = ak4613_dai_hw_params,
416};
417
418#define AK4613_PCM_RATE (SNDRV_PCM_RATE_32000 |\
419 SNDRV_PCM_RATE_44100 |\
420 SNDRV_PCM_RATE_48000 |\
421 SNDRV_PCM_RATE_64000 |\
422 SNDRV_PCM_RATE_88200 |\
423 SNDRV_PCM_RATE_96000 |\
424 SNDRV_PCM_RATE_176400 |\
425 SNDRV_PCM_RATE_192000)
Kuninori Morimotoec185f92017-05-08 02:28:13 +0000426#define AK4613_PCM_FMTBIT (SNDRV_PCM_FMTBIT_S24_LE)
Kuninori Morimotob0757062015-09-15 08:26:36 +0000427
428static struct snd_soc_dai_driver ak4613_dai = {
429 .name = "ak4613-hifi",
430 .playback = {
431 .stream_name = "Playback",
432 .channels_min = 2,
433 .channels_max = 2,
434 .rates = AK4613_PCM_RATE,
435 .formats = AK4613_PCM_FMTBIT,
436 },
437 .capture = {
438 .stream_name = "Capture",
439 .channels_min = 2,
440 .channels_max = 2,
441 .rates = AK4613_PCM_RATE,
442 .formats = AK4613_PCM_FMTBIT,
443 },
444 .ops = &ak4613_dai_ops,
445 .symmetric_rates = 1,
446};
447
Geert Uytterhoevenf9ae17b2016-06-16 14:34:31 +0200448static int ak4613_suspend(struct snd_soc_codec *codec)
449{
450 struct regmap *regmap = dev_get_regmap(codec->dev, NULL);
451
452 regcache_cache_only(regmap, true);
453 regcache_mark_dirty(regmap);
454 return 0;
455}
456
Kuninori Morimotob0757062015-09-15 08:26:36 +0000457static int ak4613_resume(struct snd_soc_codec *codec)
458{
459 struct regmap *regmap = dev_get_regmap(codec->dev, NULL);
460
Geert Uytterhoevenf9ae17b2016-06-16 14:34:31 +0200461 regcache_cache_only(regmap, false);
Kuninori Morimotob0757062015-09-15 08:26:36 +0000462 return regcache_sync(regmap);
463}
464
465static struct snd_soc_codec_driver soc_codec_dev_ak4613 = {
Geert Uytterhoevenf9ae17b2016-06-16 14:34:31 +0200466 .suspend = ak4613_suspend,
Kuninori Morimotob0757062015-09-15 08:26:36 +0000467 .resume = ak4613_resume,
468 .set_bias_level = ak4613_set_bias_level,
Kuninori Morimotobeb84f72016-08-08 09:06:34 +0000469 .component_driver = {
470 .controls = ak4613_snd_controls,
471 .num_controls = ARRAY_SIZE(ak4613_snd_controls),
472 .dapm_widgets = ak4613_dapm_widgets,
473 .num_dapm_widgets = ARRAY_SIZE(ak4613_dapm_widgets),
474 .dapm_routes = ak4613_intercon,
475 .num_dapm_routes = ARRAY_SIZE(ak4613_intercon),
476 },
Kuninori Morimotob0757062015-09-15 08:26:36 +0000477};
478
Kuninori Morimotoa3af0c62015-11-16 04:51:21 +0000479static void ak4613_parse_of(struct ak4613_priv *priv,
480 struct device *dev)
481{
482 struct device_node *np = dev->of_node;
483 char prop[32];
484 int i;
485
486 /* Input 1 - 2 */
487 for (i = 0; i < 2; i++) {
Kuninori Morimoto5547ba62015-11-19 04:22:14 +0000488 snprintf(prop, sizeof(prop), "asahi-kasei,in%d-single-end", i + 1);
Kuninori Morimotoa3af0c62015-11-16 04:51:21 +0000489 if (!of_get_property(np, prop, NULL))
490 priv->ic |= 1 << i;
491 }
492
493 /* Output 1 - 6 */
494 for (i = 0; i < 6; i++) {
Kuninori Morimoto5547ba62015-11-19 04:22:14 +0000495 snprintf(prop, sizeof(prop), "asahi-kasei,out%d-single-end", i + 1);
Kuninori Morimotoa3af0c62015-11-16 04:51:21 +0000496 if (!of_get_property(np, prop, NULL))
497 priv->oc |= 1 << i;
498 }
499}
500
Kuninori Morimotob0757062015-09-15 08:26:36 +0000501static int ak4613_i2c_probe(struct i2c_client *i2c,
502 const struct i2c_device_id *id)
503{
504 struct device *dev = &i2c->dev;
505 struct device_node *np = dev->of_node;
506 const struct regmap_config *regmap_cfg;
507 struct regmap *regmap;
508 struct ak4613_priv *priv;
509
510 regmap_cfg = NULL;
511 if (np) {
512 const struct of_device_id *of_id;
513
514 of_id = of_match_device(ak4613_of_match, dev);
515 if (of_id)
516 regmap_cfg = of_id->data;
517 } else {
518 regmap_cfg = (const struct regmap_config *)id->driver_data;
519 }
520
521 if (!regmap_cfg)
522 return -EINVAL;
523
524 priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
525 if (!priv)
526 return -ENOMEM;
527
Kuninori Morimotoa3af0c62015-11-16 04:51:21 +0000528 ak4613_parse_of(priv, dev);
529
Kuninori Morimoto35299f12015-11-16 06:01:29 +0000530 priv->iface = NULL;
Kuninori Morimotob0757062015-09-15 08:26:36 +0000531 priv->cnt = 0;
532
533 mutex_init(&priv->lock);
534
535 i2c_set_clientdata(i2c, priv);
536
537 regmap = devm_regmap_init_i2c(i2c, regmap_cfg);
538 if (IS_ERR(regmap))
539 return PTR_ERR(regmap);
540
541 return snd_soc_register_codec(dev, &soc_codec_dev_ak4613,
542 &ak4613_dai, 1);
543}
544
545static int ak4613_i2c_remove(struct i2c_client *client)
546{
547 snd_soc_unregister_codec(&client->dev);
548 return 0;
549}
550
551static struct i2c_driver ak4613_i2c_driver = {
552 .driver = {
553 .name = "ak4613-codec",
Kuninori Morimotob0757062015-09-15 08:26:36 +0000554 .of_match_table = ak4613_of_match,
555 },
556 .probe = ak4613_i2c_probe,
557 .remove = ak4613_i2c_remove,
558 .id_table = ak4613_i2c_id,
559};
560
561module_i2c_driver(ak4613_i2c_driver);
562
563MODULE_DESCRIPTION("Soc AK4613 driver");
564MODULE_AUTHOR("Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>");
565MODULE_LICENSE("GPL v2");