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11#include <linux/module.h>
12#include <linux/init.h>
13#include <linux/i2c.h>
14#include <linux/delay.h>
15#include <linux/slab.h>
16#include <linux/of.h>
17#include <linux/of_gpio.h>
18#include <linux/of_device.h>
19#include <linux/regulator/consumer.h>
20#include <linux/regmap.h>
21#include <sound/core.h>
22#include <sound/pcm.h>
23#include <sound/pcm_params.h>
24#include <sound/soc.h>
25
26#include <asm/unaligned.h>
27
28#include "sigmadsp.h"
29#include "adau1701.h"
30
31#define ADAU1701_SAFELOAD_DATA(i) (0x0810 + (i))
32#define ADAU1701_SAFELOAD_ADDR(i) (0x0815 + (i))
33
34#define ADAU1701_DSPCTRL 0x081c
35#define ADAU1701_SEROCTL 0x081e
36#define ADAU1701_SERICTL 0x081f
37
38#define ADAU1701_AUXNPOW 0x0822
39#define ADAU1701_PINCONF_0 0x0820
40#define ADAU1701_PINCONF_1 0x0821
41#define ADAU1701_AUXNPOW 0x0822
42
43#define ADAU1701_OSCIPOW 0x0826
44#define ADAU1701_DACSET 0x0827
45
46#define ADAU1701_MAX_REGISTER 0x0828
47
48#define ADAU1701_DSPCTRL_CR (1 << 2)
49#define ADAU1701_DSPCTRL_DAM (1 << 3)
50#define ADAU1701_DSPCTRL_ADM (1 << 4)
51#define ADAU1701_DSPCTRL_IST (1 << 5)
52#define ADAU1701_DSPCTRL_SR_48 0x00
53#define ADAU1701_DSPCTRL_SR_96 0x01
54#define ADAU1701_DSPCTRL_SR_192 0x02
55#define ADAU1701_DSPCTRL_SR_MASK 0x03
56
57#define ADAU1701_SEROCTL_INV_LRCLK 0x2000
58#define ADAU1701_SEROCTL_INV_BCLK 0x1000
59#define ADAU1701_SEROCTL_MASTER 0x0800
60
61#define ADAU1701_SEROCTL_OBF16 0x0000
62#define ADAU1701_SEROCTL_OBF8 0x0200
63#define ADAU1701_SEROCTL_OBF4 0x0400
64#define ADAU1701_SEROCTL_OBF2 0x0600
65#define ADAU1701_SEROCTL_OBF_MASK 0x0600
66
67#define ADAU1701_SEROCTL_OLF1024 0x0000
68#define ADAU1701_SEROCTL_OLF512 0x0080
69#define ADAU1701_SEROCTL_OLF256 0x0100
70#define ADAU1701_SEROCTL_OLF_MASK 0x0180
71
72#define ADAU1701_SEROCTL_MSB_DEALY1 0x0000
73#define ADAU1701_SEROCTL_MSB_DEALY0 0x0004
74#define ADAU1701_SEROCTL_MSB_DEALY8 0x0008
75#define ADAU1701_SEROCTL_MSB_DEALY12 0x000c
76#define ADAU1701_SEROCTL_MSB_DEALY16 0x0010
77#define ADAU1701_SEROCTL_MSB_DEALY_MASK 0x001c
78
79#define ADAU1701_SEROCTL_WORD_LEN_24 0x0000
80#define ADAU1701_SEROCTL_WORD_LEN_20 0x0001
81#define ADAU1701_SEROCTL_WORD_LEN_16 0x0002
82#define ADAU1701_SEROCTL_WORD_LEN_MASK 0x0003
83
84#define ADAU1701_AUXNPOW_VBPD 0x40
85#define ADAU1701_AUXNPOW_VRPD 0x20
86
87#define ADAU1701_SERICTL_I2S 0
88#define ADAU1701_SERICTL_LEFTJ 1
89#define ADAU1701_SERICTL_TDM 2
90#define ADAU1701_SERICTL_RIGHTJ_24 3
91#define ADAU1701_SERICTL_RIGHTJ_20 4
92#define ADAU1701_SERICTL_RIGHTJ_18 5
93#define ADAU1701_SERICTL_RIGHTJ_16 6
94#define ADAU1701_SERICTL_MODE_MASK 7
95#define ADAU1701_SERICTL_INV_BCLK BIT(3)
96#define ADAU1701_SERICTL_INV_LRCLK BIT(4)
97
98#define ADAU1701_OSCIPOW_OPD 0x04
99#define ADAU1701_DACSET_DACINIT 1
100
101#define ADAU1707_CLKDIV_UNSET (-1U)
102
103#define ADAU1701_FIRMWARE "adau1701.bin"
104
105static const char * const supply_names[] = {
106 "dvdd", "avdd"
107};
108
109struct adau1701 {
110 int gpio_nreset;
111 int gpio_pll_mode[2];
112 unsigned int dai_fmt;
113 unsigned int pll_clkdiv;
114 unsigned int sysclk;
115 struct regmap *regmap;
116 struct i2c_client *client;
117 u8 pin_config[12];
118
119 struct sigmadsp *sigmadsp;
120 struct regulator_bulk_data supplies[ARRAY_SIZE(supply_names)];
121};
122
123static const struct snd_kcontrol_new adau1701_controls[] = {
124 SOC_SINGLE("Master Capture Switch", ADAU1701_DSPCTRL, 4, 1, 0),
125};
126
127static const struct snd_soc_dapm_widget adau1701_dapm_widgets[] = {
128 SND_SOC_DAPM_DAC("DAC0", "Playback", ADAU1701_AUXNPOW, 3, 1),
129 SND_SOC_DAPM_DAC("DAC1", "Playback", ADAU1701_AUXNPOW, 2, 1),
130 SND_SOC_DAPM_DAC("DAC2", "Playback", ADAU1701_AUXNPOW, 1, 1),
131 SND_SOC_DAPM_DAC("DAC3", "Playback", ADAU1701_AUXNPOW, 0, 1),
132 SND_SOC_DAPM_ADC("ADC", "Capture", ADAU1701_AUXNPOW, 7, 1),
133
134 SND_SOC_DAPM_OUTPUT("OUT0"),
135 SND_SOC_DAPM_OUTPUT("OUT1"),
136 SND_SOC_DAPM_OUTPUT("OUT2"),
137 SND_SOC_DAPM_OUTPUT("OUT3"),
138 SND_SOC_DAPM_INPUT("IN0"),
139 SND_SOC_DAPM_INPUT("IN1"),
140};
141
142static const struct snd_soc_dapm_route adau1701_dapm_routes[] = {
143 { "OUT0", NULL, "DAC0" },
144 { "OUT1", NULL, "DAC1" },
145 { "OUT2", NULL, "DAC2" },
146 { "OUT3", NULL, "DAC3" },
147
148 { "ADC", NULL, "IN0" },
149 { "ADC", NULL, "IN1" },
150};
151
152static unsigned int adau1701_register_size(struct device *dev,
153 unsigned int reg)
154{
155 switch (reg) {
156 case ADAU1701_PINCONF_0:
157 case ADAU1701_PINCONF_1:
158 return 3;
159 case ADAU1701_DSPCTRL:
160 case ADAU1701_SEROCTL:
161 case ADAU1701_AUXNPOW:
162 case ADAU1701_OSCIPOW:
163 case ADAU1701_DACSET:
164 return 2;
165 case ADAU1701_SERICTL:
166 return 1;
167 }
168
169 dev_err(dev, "Unsupported register address: %d\n", reg);
170 return 0;
171}
172
173static bool adau1701_volatile_reg(struct device *dev, unsigned int reg)
174{
175 switch (reg) {
176 case ADAU1701_DACSET:
177 case ADAU1701_DSPCTRL:
178 return true;
179 default:
180 return false;
181 }
182}
183
184static int adau1701_reg_write(void *context, unsigned int reg,
185 unsigned int value)
186{
187 struct i2c_client *client = context;
188 unsigned int i;
189 unsigned int size;
190 uint8_t buf[5];
191 int ret;
192
193 size = adau1701_register_size(&client->dev, reg);
194 if (size == 0)
195 return -EINVAL;
196
197 buf[0] = reg >> 8;
198 buf[1] = reg & 0xff;
199
200 for (i = size + 1; i >= 2; --i) {
201 buf[i] = value;
202 value >>= 8;
203 }
204
205 ret = i2c_master_send(client, buf, size + 2);
206 if (ret == size + 2)
207 return 0;
208 else if (ret < 0)
209 return ret;
210 else
211 return -EIO;
212}
213
214static int adau1701_reg_read(void *context, unsigned int reg,
215 unsigned int *value)
216{
217 int ret;
218 unsigned int i;
219 unsigned int size;
220 uint8_t send_buf[2], recv_buf[3];
221 struct i2c_client *client = context;
222 struct i2c_msg msgs[2];
223
224 size = adau1701_register_size(&client->dev, reg);
225 if (size == 0)
226 return -EINVAL;
227
228 send_buf[0] = reg >> 8;
229 send_buf[1] = reg & 0xff;
230
231 msgs[0].addr = client->addr;
232 msgs[0].len = sizeof(send_buf);
233 msgs[0].buf = send_buf;
234 msgs[0].flags = 0;
235
236 msgs[1].addr = client->addr;
237 msgs[1].len = size;
238 msgs[1].buf = recv_buf;
239 msgs[1].flags = I2C_M_RD;
240
241 ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
242 if (ret < 0)
243 return ret;
244 else if (ret != ARRAY_SIZE(msgs))
245 return -EIO;
246
247 *value = 0;
248
249 for (i = 0; i < size; i++) {
250 *value <<= 8;
251 *value |= recv_buf[i];
252 }
253
254 return 0;
255}
256
257static int adau1701_safeload(struct sigmadsp *sigmadsp, unsigned int addr,
258 const uint8_t bytes[], size_t len)
259{
260 struct i2c_client *client = to_i2c_client(sigmadsp->dev);
261 struct adau1701 *adau1701 = i2c_get_clientdata(client);
262 unsigned int val;
263 unsigned int i;
264 uint8_t buf[10];
265 int ret;
266
267 ret = regmap_read(adau1701->regmap, ADAU1701_DSPCTRL, &val);
268 if (ret)
269 return ret;
270
271 if (val & ADAU1701_DSPCTRL_IST)
272 msleep(50);
273
274 for (i = 0; i < len / 4; i++) {
275 put_unaligned_le16(ADAU1701_SAFELOAD_DATA(i), buf);
276 buf[2] = 0x00;
277 memcpy(buf + 3, bytes + i * 4, 4);
278 ret = i2c_master_send(client, buf, 7);
279 if (ret < 0)
280 return ret;
281 else if (ret != 7)
282 return -EIO;
283
284 put_unaligned_le16(ADAU1701_SAFELOAD_ADDR(i), buf);
285 put_unaligned_le16(addr + i, buf + 2);
286 ret = i2c_master_send(client, buf, 4);
287 if (ret < 0)
288 return ret;
289 else if (ret != 4)
290 return -EIO;
291 }
292
293 return regmap_update_bits(adau1701->regmap, ADAU1701_DSPCTRL,
294 ADAU1701_DSPCTRL_IST, ADAU1701_DSPCTRL_IST);
295}
296
297static const struct sigmadsp_ops adau1701_sigmadsp_ops = {
298 .safeload = adau1701_safeload,
299};
300
301static int adau1701_reset(struct snd_soc_component *component, unsigned int clkdiv,
302 unsigned int rate)
303{
304 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
305 int ret;
306
307 sigmadsp_reset(adau1701->sigmadsp);
308
309 if (clkdiv != ADAU1707_CLKDIV_UNSET &&
310 gpio_is_valid(adau1701->gpio_pll_mode[0]) &&
311 gpio_is_valid(adau1701->gpio_pll_mode[1])) {
312 switch (clkdiv) {
313 case 64:
314 gpio_set_value_cansleep(adau1701->gpio_pll_mode[0], 0);
315 gpio_set_value_cansleep(adau1701->gpio_pll_mode[1], 0);
316 break;
317 case 256:
318 gpio_set_value_cansleep(adau1701->gpio_pll_mode[0], 0);
319 gpio_set_value_cansleep(adau1701->gpio_pll_mode[1], 1);
320 break;
321 case 384:
322 gpio_set_value_cansleep(adau1701->gpio_pll_mode[0], 1);
323 gpio_set_value_cansleep(adau1701->gpio_pll_mode[1], 0);
324 break;
325 case 0:
326 case 512:
327 gpio_set_value_cansleep(adau1701->gpio_pll_mode[0], 1);
328 gpio_set_value_cansleep(adau1701->gpio_pll_mode[1], 1);
329 break;
330 }
331 }
332
333 adau1701->pll_clkdiv = clkdiv;
334
335 if (gpio_is_valid(adau1701->gpio_nreset)) {
336 gpio_set_value_cansleep(adau1701->gpio_nreset, 0);
337
338 udelay(1);
339 gpio_set_value_cansleep(adau1701->gpio_nreset, 1);
340
341 mdelay(85);
342 }
343
344
345
346
347
348 if (clkdiv != ADAU1707_CLKDIV_UNSET) {
349 ret = sigmadsp_setup(adau1701->sigmadsp, rate);
350 if (ret) {
351 dev_warn(component->dev, "Failed to load firmware\n");
352 return ret;
353 }
354 }
355
356 regmap_write(adau1701->regmap, ADAU1701_DACSET, ADAU1701_DACSET_DACINIT);
357 regmap_write(adau1701->regmap, ADAU1701_DSPCTRL, ADAU1701_DSPCTRL_CR);
358
359 regcache_mark_dirty(adau1701->regmap);
360 regcache_sync(adau1701->regmap);
361
362 return 0;
363}
364
365static int adau1701_set_capture_pcm_format(struct snd_soc_component *component,
366 struct snd_pcm_hw_params *params)
367{
368 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
369 unsigned int mask = ADAU1701_SEROCTL_WORD_LEN_MASK;
370 unsigned int val;
371
372 switch (params_width(params)) {
373 case 16:
374 val = ADAU1701_SEROCTL_WORD_LEN_16;
375 break;
376 case 20:
377 val = ADAU1701_SEROCTL_WORD_LEN_20;
378 break;
379 case 24:
380 val = ADAU1701_SEROCTL_WORD_LEN_24;
381 break;
382 default:
383 return -EINVAL;
384 }
385
386 if (adau1701->dai_fmt == SND_SOC_DAIFMT_RIGHT_J) {
387 switch (params_width(params)) {
388 case 16:
389 val |= ADAU1701_SEROCTL_MSB_DEALY16;
390 break;
391 case 20:
392 val |= ADAU1701_SEROCTL_MSB_DEALY12;
393 break;
394 case 24:
395 val |= ADAU1701_SEROCTL_MSB_DEALY8;
396 break;
397 }
398 mask |= ADAU1701_SEROCTL_MSB_DEALY_MASK;
399 }
400
401 regmap_update_bits(adau1701->regmap, ADAU1701_SEROCTL, mask, val);
402
403 return 0;
404}
405
406static int adau1701_set_playback_pcm_format(struct snd_soc_component *component,
407 struct snd_pcm_hw_params *params)
408{
409 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
410 unsigned int val;
411
412 if (adau1701->dai_fmt != SND_SOC_DAIFMT_RIGHT_J)
413 return 0;
414
415 switch (params_width(params)) {
416 case 16:
417 val = ADAU1701_SERICTL_RIGHTJ_16;
418 break;
419 case 20:
420 val = ADAU1701_SERICTL_RIGHTJ_20;
421 break;
422 case 24:
423 val = ADAU1701_SERICTL_RIGHTJ_24;
424 break;
425 default:
426 return -EINVAL;
427 }
428
429 regmap_update_bits(adau1701->regmap, ADAU1701_SERICTL,
430 ADAU1701_SERICTL_MODE_MASK, val);
431
432 return 0;
433}
434
435static int adau1701_hw_params(struct snd_pcm_substream *substream,
436 struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
437{
438 struct snd_soc_component *component = dai->component;
439 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
440 unsigned int clkdiv = adau1701->sysclk / params_rate(params);
441 unsigned int val;
442 int ret;
443
444
445
446
447
448
449 if (clkdiv != adau1701->pll_clkdiv) {
450 ret = adau1701_reset(component, clkdiv, params_rate(params));
451 if (ret < 0)
452 return ret;
453 }
454
455 switch (params_rate(params)) {
456 case 192000:
457 val = ADAU1701_DSPCTRL_SR_192;
458 break;
459 case 96000:
460 val = ADAU1701_DSPCTRL_SR_96;
461 break;
462 case 48000:
463 val = ADAU1701_DSPCTRL_SR_48;
464 break;
465 default:
466 return -EINVAL;
467 }
468
469 regmap_update_bits(adau1701->regmap, ADAU1701_DSPCTRL,
470 ADAU1701_DSPCTRL_SR_MASK, val);
471
472 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
473 return adau1701_set_playback_pcm_format(component, params);
474 else
475 return adau1701_set_capture_pcm_format(component, params);
476}
477
478static int adau1701_set_dai_fmt(struct snd_soc_dai *codec_dai,
479 unsigned int fmt)
480{
481 struct snd_soc_component *component = codec_dai->component;
482 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
483 unsigned int serictl = 0x00, seroctl = 0x00;
484 bool invert_lrclk;
485
486 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
487 case SND_SOC_DAIFMT_CBM_CFM:
488
489 seroctl |= ADAU1701_SEROCTL_MASTER | ADAU1701_SEROCTL_OBF16
490 | ADAU1701_SEROCTL_OLF1024;
491 break;
492 case SND_SOC_DAIFMT_CBS_CFS:
493 break;
494 default:
495 return -EINVAL;
496 }
497
498
499 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
500 case SND_SOC_DAIFMT_NB_NF:
501 invert_lrclk = false;
502 break;
503 case SND_SOC_DAIFMT_NB_IF:
504 invert_lrclk = true;
505 break;
506 case SND_SOC_DAIFMT_IB_NF:
507 invert_lrclk = false;
508 serictl |= ADAU1701_SERICTL_INV_BCLK;
509 seroctl |= ADAU1701_SEROCTL_INV_BCLK;
510 break;
511 case SND_SOC_DAIFMT_IB_IF:
512 invert_lrclk = true;
513 serictl |= ADAU1701_SERICTL_INV_BCLK;
514 seroctl |= ADAU1701_SEROCTL_INV_BCLK;
515 break;
516 default:
517 return -EINVAL;
518 }
519
520 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
521 case SND_SOC_DAIFMT_I2S:
522 break;
523 case SND_SOC_DAIFMT_LEFT_J:
524 serictl |= ADAU1701_SERICTL_LEFTJ;
525 seroctl |= ADAU1701_SEROCTL_MSB_DEALY0;
526 invert_lrclk = !invert_lrclk;
527 break;
528 case SND_SOC_DAIFMT_RIGHT_J:
529 serictl |= ADAU1701_SERICTL_RIGHTJ_24;
530 seroctl |= ADAU1701_SEROCTL_MSB_DEALY8;
531 invert_lrclk = !invert_lrclk;
532 break;
533 default:
534 return -EINVAL;
535 }
536
537 if (invert_lrclk) {
538 seroctl |= ADAU1701_SEROCTL_INV_LRCLK;
539 serictl |= ADAU1701_SERICTL_INV_LRCLK;
540 }
541
542 adau1701->dai_fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
543
544 regmap_write(adau1701->regmap, ADAU1701_SERICTL, serictl);
545 regmap_update_bits(adau1701->regmap, ADAU1701_SEROCTL,
546 ~ADAU1701_SEROCTL_WORD_LEN_MASK, seroctl);
547
548 return 0;
549}
550
551static int adau1701_set_bias_level(struct snd_soc_component *component,
552 enum snd_soc_bias_level level)
553{
554 unsigned int mask = ADAU1701_AUXNPOW_VBPD | ADAU1701_AUXNPOW_VRPD;
555 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
556
557 switch (level) {
558 case SND_SOC_BIAS_ON:
559 break;
560 case SND_SOC_BIAS_PREPARE:
561 break;
562 case SND_SOC_BIAS_STANDBY:
563
564 regmap_update_bits(adau1701->regmap,
565 ADAU1701_AUXNPOW, mask, 0x00);
566 break;
567 case SND_SOC_BIAS_OFF:
568
569 regmap_update_bits(adau1701->regmap,
570 ADAU1701_AUXNPOW, mask, mask);
571 break;
572 }
573
574 return 0;
575}
576
577static int adau1701_digital_mute(struct snd_soc_dai *dai, int mute)
578{
579 struct snd_soc_component *component = dai->component;
580 unsigned int mask = ADAU1701_DSPCTRL_DAM;
581 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
582 unsigned int val;
583
584 if (mute)
585 val = 0;
586 else
587 val = mask;
588
589 regmap_update_bits(adau1701->regmap, ADAU1701_DSPCTRL, mask, val);
590
591 return 0;
592}
593
594static int adau1701_set_sysclk(struct snd_soc_component *component, int clk_id,
595 int source, unsigned int freq, int dir)
596{
597 unsigned int val;
598 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
599
600 switch (clk_id) {
601 case ADAU1701_CLK_SRC_OSC:
602 val = 0x0;
603 break;
604 case ADAU1701_CLK_SRC_MCLK:
605 val = ADAU1701_OSCIPOW_OPD;
606 break;
607 default:
608 return -EINVAL;
609 }
610
611 regmap_update_bits(adau1701->regmap, ADAU1701_OSCIPOW,
612 ADAU1701_OSCIPOW_OPD, val);
613 adau1701->sysclk = freq;
614
615 return 0;
616}
617
618static int adau1701_startup(struct snd_pcm_substream *substream,
619 struct snd_soc_dai *dai)
620{
621 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(dai->component);
622
623 return sigmadsp_restrict_params(adau1701->sigmadsp, substream);
624}
625
626#define ADAU1701_RATES (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | \
627 SNDRV_PCM_RATE_192000)
628
629#define ADAU1701_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
630 SNDRV_PCM_FMTBIT_S24_LE)
631
632static const struct snd_soc_dai_ops adau1701_dai_ops = {
633 .set_fmt = adau1701_set_dai_fmt,
634 .hw_params = adau1701_hw_params,
635 .digital_mute = adau1701_digital_mute,
636 .startup = adau1701_startup,
637};
638
639static struct snd_soc_dai_driver adau1701_dai = {
640 .name = "adau1701",
641 .playback = {
642 .stream_name = "Playback",
643 .channels_min = 2,
644 .channels_max = 8,
645 .rates = ADAU1701_RATES,
646 .formats = ADAU1701_FORMATS,
647 },
648 .capture = {
649 .stream_name = "Capture",
650 .channels_min = 2,
651 .channels_max = 8,
652 .rates = ADAU1701_RATES,
653 .formats = ADAU1701_FORMATS,
654 },
655 .ops = &adau1701_dai_ops,
656 .symmetric_rates = 1,
657};
658
659#ifdef CONFIG_OF
660static const struct of_device_id adau1701_dt_ids[] = {
661 { .compatible = "adi,adau1701", },
662 { }
663};
664MODULE_DEVICE_TABLE(of, adau1701_dt_ids);
665#endif
666
667static int adau1701_probe(struct snd_soc_component *component)
668{
669 int i, ret;
670 unsigned int val;
671 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
672
673 ret = sigmadsp_attach(adau1701->sigmadsp, component);
674 if (ret)
675 return ret;
676
677 ret = regulator_bulk_enable(ARRAY_SIZE(adau1701->supplies),
678 adau1701->supplies);
679 if (ret < 0) {
680 dev_err(component->dev, "Failed to enable regulators: %d\n", ret);
681 return ret;
682 }
683
684
685
686
687
688
689
690 adau1701->pll_clkdiv = ADAU1707_CLKDIV_UNSET;
691
692
693 ret = adau1701_reset(component, adau1701->pll_clkdiv, 0);
694 if (ret < 0)
695 goto exit_regulators_disable;
696
697
698 val = 0;
699 for (i = 0; i < 6; i++)
700 val |= adau1701->pin_config[i] << (i * 4);
701
702 regmap_write(adau1701->regmap, ADAU1701_PINCONF_0, val);
703
704 val = 0;
705 for (i = 0; i < 6; i++)
706 val |= adau1701->pin_config[i + 6] << (i * 4);
707
708 regmap_write(adau1701->regmap, ADAU1701_PINCONF_1, val);
709
710 return 0;
711
712exit_regulators_disable:
713
714 regulator_bulk_disable(ARRAY_SIZE(adau1701->supplies), adau1701->supplies);
715 return ret;
716}
717
718static void adau1701_remove(struct snd_soc_component *component)
719{
720 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
721
722 if (gpio_is_valid(adau1701->gpio_nreset))
723 gpio_set_value_cansleep(adau1701->gpio_nreset, 0);
724
725 regulator_bulk_disable(ARRAY_SIZE(adau1701->supplies), adau1701->supplies);
726}
727
728#ifdef CONFIG_PM
729static int adau1701_suspend(struct snd_soc_component *component)
730{
731 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
732
733 regulator_bulk_disable(ARRAY_SIZE(adau1701->supplies),
734 adau1701->supplies);
735
736 return 0;
737}
738
739static int adau1701_resume(struct snd_soc_component *component)
740{
741 struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
742 int ret;
743
744 ret = regulator_bulk_enable(ARRAY_SIZE(adau1701->supplies),
745 adau1701->supplies);
746 if (ret < 0) {
747 dev_err(component->dev, "Failed to enable regulators: %d\n", ret);
748 return ret;
749 }
750
751 return adau1701_reset(component, adau1701->pll_clkdiv, 0);
752}
753#else
754#define adau1701_resume NULL
755#define adau1701_suspend NULL
756#endif
757
758static const struct snd_soc_component_driver adau1701_component_drv = {
759 .probe = adau1701_probe,
760 .remove = adau1701_remove,
761 .resume = adau1701_resume,
762 .suspend = adau1701_suspend,
763 .set_bias_level = adau1701_set_bias_level,
764 .controls = adau1701_controls,
765 .num_controls = ARRAY_SIZE(adau1701_controls),
766 .dapm_widgets = adau1701_dapm_widgets,
767 .num_dapm_widgets = ARRAY_SIZE(adau1701_dapm_widgets),
768 .dapm_routes = adau1701_dapm_routes,
769 .num_dapm_routes = ARRAY_SIZE(adau1701_dapm_routes),
770 .set_sysclk = adau1701_set_sysclk,
771 .use_pmdown_time = 1,
772 .endianness = 1,
773 .non_legacy_dai_naming = 1,
774};
775
776static const struct regmap_config adau1701_regmap = {
777 .reg_bits = 16,
778 .val_bits = 32,
779 .max_register = ADAU1701_MAX_REGISTER,
780 .cache_type = REGCACHE_RBTREE,
781 .volatile_reg = adau1701_volatile_reg,
782 .reg_write = adau1701_reg_write,
783 .reg_read = adau1701_reg_read,
784};
785
786static int adau1701_i2c_probe(struct i2c_client *client,
787 const struct i2c_device_id *id)
788{
789 struct adau1701 *adau1701;
790 struct device *dev = &client->dev;
791 int gpio_nreset = -EINVAL;
792 int gpio_pll_mode[2] = { -EINVAL, -EINVAL };
793 int ret, i;
794
795 adau1701 = devm_kzalloc(dev, sizeof(*adau1701), GFP_KERNEL);
796 if (!adau1701)
797 return -ENOMEM;
798
799 for (i = 0; i < ARRAY_SIZE(supply_names); i++)
800 adau1701->supplies[i].supply = supply_names[i];
801
802 ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(adau1701->supplies),
803 adau1701->supplies);
804 if (ret < 0) {
805 dev_err(dev, "Failed to get regulators: %d\n", ret);
806 return ret;
807 }
808
809 ret = regulator_bulk_enable(ARRAY_SIZE(adau1701->supplies),
810 adau1701->supplies);
811 if (ret < 0) {
812 dev_err(dev, "Failed to enable regulators: %d\n", ret);
813 return ret;
814 }
815
816 adau1701->client = client;
817 adau1701->regmap = devm_regmap_init(dev, NULL, client,
818 &adau1701_regmap);
819 if (IS_ERR(adau1701->regmap)) {
820 ret = PTR_ERR(adau1701->regmap);
821 goto exit_regulators_disable;
822 }
823
824
825 if (dev->of_node) {
826 gpio_nreset = of_get_named_gpio(dev->of_node, "reset-gpio", 0);
827 if (gpio_nreset < 0 && gpio_nreset != -ENOENT) {
828 ret = gpio_nreset;
829 goto exit_regulators_disable;
830 }
831
832 gpio_pll_mode[0] = of_get_named_gpio(dev->of_node,
833 "adi,pll-mode-gpios", 0);
834 if (gpio_pll_mode[0] < 0 && gpio_pll_mode[0] != -ENOENT) {
835 ret = gpio_pll_mode[0];
836 goto exit_regulators_disable;
837 }
838
839 gpio_pll_mode[1] = of_get_named_gpio(dev->of_node,
840 "adi,pll-mode-gpios", 1);
841 if (gpio_pll_mode[1] < 0 && gpio_pll_mode[1] != -ENOENT) {
842 ret = gpio_pll_mode[1];
843 goto exit_regulators_disable;
844 }
845
846 of_property_read_u32(dev->of_node, "adi,pll-clkdiv",
847 &adau1701->pll_clkdiv);
848
849 of_property_read_u8_array(dev->of_node, "adi,pin-config",
850 adau1701->pin_config,
851 ARRAY_SIZE(adau1701->pin_config));
852 }
853
854 if (gpio_is_valid(gpio_nreset)) {
855 ret = devm_gpio_request_one(dev, gpio_nreset, GPIOF_OUT_INIT_LOW,
856 "ADAU1701 Reset");
857 if (ret < 0)
858 goto exit_regulators_disable;
859 }
860
861 if (gpio_is_valid(gpio_pll_mode[0]) &&
862 gpio_is_valid(gpio_pll_mode[1])) {
863 ret = devm_gpio_request_one(dev, gpio_pll_mode[0],
864 GPIOF_OUT_INIT_LOW,
865 "ADAU1701 PLL mode 0");
866 if (ret < 0)
867 goto exit_regulators_disable;
868
869 ret = devm_gpio_request_one(dev, gpio_pll_mode[1],
870 GPIOF_OUT_INIT_LOW,
871 "ADAU1701 PLL mode 1");
872 if (ret < 0)
873 goto exit_regulators_disable;
874 }
875
876 adau1701->gpio_nreset = gpio_nreset;
877 adau1701->gpio_pll_mode[0] = gpio_pll_mode[0];
878 adau1701->gpio_pll_mode[1] = gpio_pll_mode[1];
879
880 i2c_set_clientdata(client, adau1701);
881
882 adau1701->sigmadsp = devm_sigmadsp_init_i2c(client,
883 &adau1701_sigmadsp_ops, ADAU1701_FIRMWARE);
884 if (IS_ERR(adau1701->sigmadsp)) {
885 ret = PTR_ERR(adau1701->sigmadsp);
886 goto exit_regulators_disable;
887 }
888
889 ret = devm_snd_soc_register_component(&client->dev,
890 &adau1701_component_drv,
891 &adau1701_dai, 1);
892
893exit_regulators_disable:
894
895 regulator_bulk_disable(ARRAY_SIZE(adau1701->supplies), adau1701->supplies);
896 return ret;
897}
898
899static const struct i2c_device_id adau1701_i2c_id[] = {
900 { "adau1401", 0 },
901 { "adau1401a", 0 },
902 { "adau1701", 0 },
903 { "adau1702", 0 },
904 { }
905};
906MODULE_DEVICE_TABLE(i2c, adau1701_i2c_id);
907
908static struct i2c_driver adau1701_i2c_driver = {
909 .driver = {
910 .name = "adau1701",
911 .of_match_table = of_match_ptr(adau1701_dt_ids),
912 },
913 .probe = adau1701_i2c_probe,
914 .id_table = adau1701_i2c_id,
915};
916
917module_i2c_driver(adau1701_i2c_driver);
918
919MODULE_DESCRIPTION("ASoC ADAU1701 SigmaDSP driver");
920MODULE_AUTHOR("Cliff Cai <cliff.cai@analog.com>");
921MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
922MODULE_LICENSE("GPL");
923
