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13#include <linux/init.h>
14#include <linux/module.h>
15#include <linux/clk.h>
16#include <linux/kernel.h>
17#include <linux/pm_runtime.h>
18#include <linux/regmap.h>
19#include <linux/i2c.h>
20#include <linux/regulator/consumer.h>
21#include <sound/soc.h>
22#include <sound/soc-dapm.h>
23#include <sound/pcm_params.h>
24#include <sound/tlv.h>
25
26#include "max9860.h"
27
28struct max9860_priv {
29 struct regmap *regmap;
30 struct regulator *dvddio;
31 struct notifier_block dvddio_nb;
32 u8 psclk;
33 unsigned long pclk_rate;
34 int fmt;
35};
36
37static int max9860_dvddio_event(struct notifier_block *nb,
38 unsigned long event, void *data)
39{
40 struct max9860_priv *max9860 = container_of(nb, struct max9860_priv,
41 dvddio_nb);
42 if (event & REGULATOR_EVENT_DISABLE) {
43 regcache_mark_dirty(max9860->regmap);
44 regcache_cache_only(max9860->regmap, true);
45 }
46
47 return 0;
48}
49
50static const struct reg_default max9860_reg_defaults[] = {
51 { MAX9860_PWRMAN, 0x00 },
52 { MAX9860_INTEN, 0x00 },
53 { MAX9860_SYSCLK, 0x00 },
54 { MAX9860_AUDIOCLKHIGH, 0x00 },
55 { MAX9860_AUDIOCLKLOW, 0x00 },
56 { MAX9860_IFC1A, 0x00 },
57 { MAX9860_IFC1B, 0x00 },
58 { MAX9860_VOICEFLTR, 0x00 },
59 { MAX9860_DACATTN, 0x00 },
60 { MAX9860_ADCLEVEL, 0x00 },
61 { MAX9860_DACGAIN, 0x00 },
62 { MAX9860_MICGAIN, 0x00 },
63 { MAX9860_MICADC, 0x00 },
64 { MAX9860_NOISEGATE, 0x00 },
65};
66
67static bool max9860_readable(struct device *dev, unsigned int reg)
68{
69 switch (reg) {
70 case MAX9860_INTRSTATUS ... MAX9860_MICGAIN:
71 case MAX9860_MICADC ... MAX9860_PWRMAN:
72 case MAX9860_REVISION:
73 return true;
74 }
75
76 return false;
77}
78
79static bool max9860_writeable(struct device *dev, unsigned int reg)
80{
81 switch (reg) {
82 case MAX9860_INTEN ... MAX9860_MICGAIN:
83 case MAX9860_MICADC ... MAX9860_PWRMAN:
84 return true;
85 }
86
87 return false;
88}
89
90static bool max9860_volatile(struct device *dev, unsigned int reg)
91{
92 switch (reg) {
93 case MAX9860_INTRSTATUS:
94 case MAX9860_MICREADBACK:
95 return true;
96 }
97
98 return false;
99}
100
101static bool max9860_precious(struct device *dev, unsigned int reg)
102{
103 switch (reg) {
104 case MAX9860_INTRSTATUS:
105 return true;
106 }
107
108 return false;
109}
110
111static const struct regmap_config max9860_regmap = {
112 .reg_bits = 8,
113 .val_bits = 8,
114
115 .readable_reg = max9860_readable,
116 .writeable_reg = max9860_writeable,
117 .volatile_reg = max9860_volatile,
118 .precious_reg = max9860_precious,
119
120 .max_register = MAX9860_MAX_REGISTER,
121 .reg_defaults = max9860_reg_defaults,
122 .num_reg_defaults = ARRAY_SIZE(max9860_reg_defaults),
123 .cache_type = REGCACHE_RBTREE,
124};
125
126static const DECLARE_TLV_DB_SCALE(dva_tlv, -9100, 100, 1);
127static const DECLARE_TLV_DB_SCALE(dvg_tlv, 0, 600, 0);
128static const DECLARE_TLV_DB_SCALE(adc_tlv, -1200, 100, 0);
129static const DECLARE_TLV_DB_RANGE(pam_tlv,
130 0, MAX9860_PAM_MAX - 1, TLV_DB_SCALE_ITEM(-2000, 2000, 1),
131 MAX9860_PAM_MAX, MAX9860_PAM_MAX, TLV_DB_SCALE_ITEM(3000, 0, 0));
132static const DECLARE_TLV_DB_SCALE(pgam_tlv, 0, 100, 0);
133static const DECLARE_TLV_DB_SCALE(anth_tlv, -7600, 400, 1);
134static const DECLARE_TLV_DB_SCALE(agcth_tlv, -1800, 100, 0);
135
136static const char * const agchld_text[] = {
137 "AGC Disabled", "50ms", "100ms", "400ms"
138};
139
140static SOC_ENUM_SINGLE_DECL(agchld_enum, MAX9860_MICADC,
141 MAX9860_AGCHLD_SHIFT, agchld_text);
142
143static const char * const agcsrc_text[] = {
144 "Left ADC", "Left/Right ADC"
145};
146
147static SOC_ENUM_SINGLE_DECL(agcsrc_enum, MAX9860_MICADC,
148 MAX9860_AGCSRC_SHIFT, agcsrc_text);
149
150static const char * const agcatk_text[] = {
151 "3ms", "12ms", "50ms", "200ms"
152};
153
154static SOC_ENUM_SINGLE_DECL(agcatk_enum, MAX9860_MICADC,
155 MAX9860_AGCATK_SHIFT, agcatk_text);
156
157static const char * const agcrls_text[] = {
158 "78ms", "156ms", "312ms", "625ms",
159 "1.25s", "2.5s", "5s", "10s"
160};
161
162static SOC_ENUM_SINGLE_DECL(agcrls_enum, MAX9860_MICADC,
163 MAX9860_AGCRLS_SHIFT, agcrls_text);
164
165static const char * const filter_text[] = {
166 "Disabled",
167 "Elliptical HP 217Hz notch (16kHz)",
168 "Butterworth HP 500Hz (16kHz)",
169 "Elliptical HP 217Hz notch (8kHz)",
170 "Butterworth HP 500Hz (8kHz)",
171 "Butterworth HP 200Hz (48kHz)"
172};
173
174static SOC_ENUM_SINGLE_DECL(avflt_enum, MAX9860_VOICEFLTR,
175 MAX9860_AVFLT_SHIFT, filter_text);
176
177static SOC_ENUM_SINGLE_DECL(dvflt_enum, MAX9860_VOICEFLTR,
178 MAX9860_DVFLT_SHIFT, filter_text);
179
180static const struct snd_kcontrol_new max9860_controls[] = {
181SOC_SINGLE_TLV("Master Playback Volume", MAX9860_DACATTN,
182 MAX9860_DVA_SHIFT, MAX9860_DVA_MUTE, 1, dva_tlv),
183SOC_SINGLE_TLV("DAC Gain Volume", MAX9860_DACGAIN,
184 MAX9860_DVG_SHIFT, MAX9860_DVG_MAX, 0, dvg_tlv),
185SOC_DOUBLE_TLV("Line Capture Volume", MAX9860_ADCLEVEL,
186 MAX9860_ADCLL_SHIFT, MAX9860_ADCRL_SHIFT, MAX9860_ADCxL_MIN, 1,
187 adc_tlv),
188
189SOC_ENUM("AGC Hold Time", agchld_enum),
190SOC_ENUM("AGC/Noise Gate Source", agcsrc_enum),
191SOC_ENUM("AGC Attack Time", agcatk_enum),
192SOC_ENUM("AGC Release Time", agcrls_enum),
193
194SOC_SINGLE_TLV("Noise Gate Threshold Volume", MAX9860_NOISEGATE,
195 MAX9860_ANTH_SHIFT, MAX9860_ANTH_MAX, 0, anth_tlv),
196SOC_SINGLE_TLV("AGC Signal Threshold Volume", MAX9860_NOISEGATE,
197 MAX9860_AGCTH_SHIFT, MAX9860_AGCTH_MIN, 1, agcth_tlv),
198
199SOC_SINGLE_TLV("Mic PGA Volume", MAX9860_MICGAIN,
200 MAX9860_PGAM_SHIFT, MAX9860_PGAM_MIN, 1, pgam_tlv),
201SOC_SINGLE_TLV("Mic Preamp Volume", MAX9860_MICGAIN,
202 MAX9860_PAM_SHIFT, MAX9860_PAM_MAX, 0, pam_tlv),
203
204SOC_ENUM("ADC Filter", avflt_enum),
205SOC_ENUM("DAC Filter", dvflt_enum),
206};
207
208static const struct snd_soc_dapm_widget max9860_dapm_widgets[] = {
209SND_SOC_DAPM_INPUT("MICL"),
210SND_SOC_DAPM_INPUT("MICR"),
211
212SND_SOC_DAPM_ADC("ADCL", NULL, MAX9860_PWRMAN, MAX9860_ADCLEN_SHIFT, 0),
213SND_SOC_DAPM_ADC("ADCR", NULL, MAX9860_PWRMAN, MAX9860_ADCREN_SHIFT, 0),
214
215SND_SOC_DAPM_AIF_OUT("AIFOUTL", "Capture", 0, SND_SOC_NOPM, 0, 0),
216SND_SOC_DAPM_AIF_OUT("AIFOUTR", "Capture", 1, SND_SOC_NOPM, 0, 0),
217
218SND_SOC_DAPM_AIF_IN("AIFINL", "Playback", 0, SND_SOC_NOPM, 0, 0),
219SND_SOC_DAPM_AIF_IN("AIFINR", "Playback", 1, SND_SOC_NOPM, 0, 0),
220
221SND_SOC_DAPM_DAC("DAC", NULL, MAX9860_PWRMAN, MAX9860_DACEN_SHIFT, 0),
222
223SND_SOC_DAPM_OUTPUT("OUT"),
224
225SND_SOC_DAPM_SUPPLY("Supply", SND_SOC_NOPM, 0, 0,
226 NULL, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
227SND_SOC_DAPM_REGULATOR_SUPPLY("AVDD", 0, 0),
228SND_SOC_DAPM_REGULATOR_SUPPLY("DVDD", 0, 0),
229SND_SOC_DAPM_CLOCK_SUPPLY("mclk"),
230};
231
232static const struct snd_soc_dapm_route max9860_dapm_routes[] = {
233 { "ADCL", NULL, "MICL" },
234 { "ADCR", NULL, "MICR" },
235 { "AIFOUTL", NULL, "ADCL" },
236 { "AIFOUTR", NULL, "ADCR" },
237
238 { "DAC", NULL, "AIFINL" },
239 { "DAC", NULL, "AIFINR" },
240 { "OUT", NULL, "DAC" },
241
242 { "Supply", NULL, "AVDD" },
243 { "Supply", NULL, "DVDD" },
244 { "Supply", NULL, "mclk" },
245
246 { "DAC", NULL, "Supply" },
247 { "ADCL", NULL, "Supply" },
248 { "ADCR", NULL, "Supply" },
249};
250
251static int max9860_hw_params(struct snd_pcm_substream *substream,
252 struct snd_pcm_hw_params *params,
253 struct snd_soc_dai *dai)
254{
255 struct snd_soc_component *component = dai->component;
256 struct max9860_priv *max9860 = snd_soc_component_get_drvdata(component);
257 u8 master;
258 u8 ifc1a = 0;
259 u8 ifc1b = 0;
260 u8 sysclk = 0;
261 unsigned long n;
262 int ret;
263
264 dev_dbg(component->dev, "hw_params %u Hz, %u channels\n",
265 params_rate(params),
266 params_channels(params));
267
268 if (params_channels(params) == 2)
269 ifc1b |= MAX9860_ST;
270
271 switch (max9860->fmt & SND_SOC_DAIFMT_MASTER_MASK) {
272 case SND_SOC_DAIFMT_CBS_CFS:
273 master = 0;
274 break;
275 case SND_SOC_DAIFMT_CBM_CFM:
276 master = MAX9860_MASTER;
277 break;
278 default:
279 return -EINVAL;
280 }
281 ifc1a |= master;
282
283 if (master) {
284 if (params_width(params) * params_channels(params) > 48)
285 ifc1b |= MAX9860_BSEL_64X;
286 else
287 ifc1b |= MAX9860_BSEL_48X;
288 }
289
290 switch (max9860->fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
291 case SND_SOC_DAIFMT_I2S:
292 ifc1a |= MAX9860_DDLY;
293 ifc1b |= MAX9860_ADLY;
294 break;
295 case SND_SOC_DAIFMT_LEFT_J:
296 ifc1a |= MAX9860_WCI;
297 break;
298 case SND_SOC_DAIFMT_DSP_A:
299 if (params_width(params) != 16) {
300 dev_err(component->dev,
301 "DSP_A works for 16 bits per sample only.\n");
302 return -EINVAL;
303 }
304 ifc1a |= MAX9860_DDLY | MAX9860_WCI | MAX9860_HIZ | MAX9860_TDM;
305 ifc1b |= MAX9860_ADLY;
306 break;
307 case SND_SOC_DAIFMT_DSP_B:
308 if (params_width(params) != 16) {
309 dev_err(component->dev,
310 "DSP_B works for 16 bits per sample only.\n");
311 return -EINVAL;
312 }
313 ifc1a |= MAX9860_WCI | MAX9860_HIZ | MAX9860_TDM;
314 break;
315 default:
316 return -EINVAL;
317 }
318
319 switch (max9860->fmt & SND_SOC_DAIFMT_INV_MASK) {
320 case SND_SOC_DAIFMT_NB_NF:
321 break;
322 case SND_SOC_DAIFMT_NB_IF:
323 switch (max9860->fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
324 case SND_SOC_DAIFMT_DSP_A:
325 case SND_SOC_DAIFMT_DSP_B:
326 return -EINVAL;
327 }
328 ifc1a ^= MAX9860_WCI;
329 break;
330 case SND_SOC_DAIFMT_IB_IF:
331 switch (max9860->fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
332 case SND_SOC_DAIFMT_DSP_A:
333 case SND_SOC_DAIFMT_DSP_B:
334 return -EINVAL;
335 }
336 ifc1a ^= MAX9860_WCI;
337
338 case SND_SOC_DAIFMT_IB_NF:
339 ifc1a ^= MAX9860_DBCI;
340 ifc1b ^= MAX9860_ABCI;
341 break;
342 default:
343 return -EINVAL;
344 }
345
346 dev_dbg(component->dev, "IFC1A %02x\n", ifc1a);
347 ret = regmap_write(max9860->regmap, MAX9860_IFC1A, ifc1a);
348 if (ret) {
349 dev_err(component->dev, "Failed to set IFC1A: %d\n", ret);
350 return ret;
351 }
352 dev_dbg(component->dev, "IFC1B %02x\n", ifc1b);
353 ret = regmap_write(max9860->regmap, MAX9860_IFC1B, ifc1b);
354 if (ret) {
355 dev_err(component->dev, "Failed to set IFC1B: %d\n", ret);
356 return ret;
357 }
358
359
360
361
362
363
364
365 if (params_rate(params) == 8000 || params_rate(params) == 16000) {
366 if (master) {
367 switch (max9860->pclk_rate) {
368 case 12000000:
369 sysclk = MAX9860_FREQ_12MHZ;
370 break;
371 case 13000000:
372 sysclk = MAX9860_FREQ_13MHZ;
373 break;
374 case 19200000:
375 sysclk = MAX9860_FREQ_19_2MHZ;
376 break;
377 default:
378
379
380
381
382
383 break;
384 }
385
386 if (sysclk && params_rate(params) == 16000)
387 sysclk |= MAX9860_16KHZ;
388 }
389 }
390
391
392
393
394
395
396
397
398 n = DIV_ROUND_CLOSEST_ULL(65536ULL * 96 * params_rate(params),
399 max9860->pclk_rate);
400
401 if (!sysclk) {
402
403 if (params_rate(params) > 24000)
404 sysclk |= MAX9860_16KHZ;
405
406 if (!master)
407 n |= 1;
408 }
409
410 sysclk |= max9860->psclk;
411 dev_dbg(component->dev, "SYSCLK %02x\n", sysclk);
412 ret = regmap_write(max9860->regmap,
413 MAX9860_SYSCLK, sysclk);
414 if (ret) {
415 dev_err(component->dev, "Failed to set SYSCLK: %d\n", ret);
416 return ret;
417 }
418 dev_dbg(component->dev, "N %lu\n", n);
419 ret = regmap_write(max9860->regmap,
420 MAX9860_AUDIOCLKHIGH, n >> 8);
421 if (ret) {
422 dev_err(component->dev, "Failed to set NHI: %d\n", ret);
423 return ret;
424 }
425 ret = regmap_write(max9860->regmap,
426 MAX9860_AUDIOCLKLOW, n & 0xff);
427 if (ret) {
428 dev_err(component->dev, "Failed to set NLO: %d\n", ret);
429 return ret;
430 }
431
432 if (!master) {
433 dev_dbg(component->dev, "Enable PLL\n");
434 ret = regmap_update_bits(max9860->regmap, MAX9860_AUDIOCLKHIGH,
435 MAX9860_PLL, MAX9860_PLL);
436 if (ret) {
437 dev_err(component->dev, "Failed to enable PLL: %d\n",
438 ret);
439 return ret;
440 }
441 }
442
443 return 0;
444}
445
446static int max9860_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
447{
448 struct snd_soc_component *component = dai->component;
449 struct max9860_priv *max9860 = snd_soc_component_get_drvdata(component);
450
451 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
452 case SND_SOC_DAIFMT_CBM_CFM:
453 case SND_SOC_DAIFMT_CBS_CFS:
454 max9860->fmt = fmt;
455 return 0;
456
457 default:
458 return -EINVAL;
459 }
460}
461
462static const struct snd_soc_dai_ops max9860_dai_ops = {
463 .hw_params = max9860_hw_params,
464 .set_fmt = max9860_set_fmt,
465};
466
467static struct snd_soc_dai_driver max9860_dai = {
468 .name = "max9860-hifi",
469 .playback = {
470 .stream_name = "Playback",
471 .channels_min = 1,
472 .channels_max = 2,
473 .rates = SNDRV_PCM_RATE_CONTINUOUS,
474 .rate_min = 8000,
475 .rate_max = 48000,
476 .formats = SNDRV_PCM_FMTBIT_S16_LE |
477 SNDRV_PCM_FMTBIT_S24_LE |
478 SNDRV_PCM_FMTBIT_S32_LE,
479 },
480 .capture = {
481 .stream_name = "Capture",
482 .channels_min = 1,
483 .channels_max = 2,
484 .rates = SNDRV_PCM_RATE_CONTINUOUS,
485 .rate_min = 8000,
486 .rate_max = 48000,
487 .formats = SNDRV_PCM_FMTBIT_S16_LE |
488 SNDRV_PCM_FMTBIT_S24_LE |
489 SNDRV_PCM_FMTBIT_S32_LE,
490 },
491 .ops = &max9860_dai_ops,
492 .symmetric_rates = 1,
493};
494
495static int max9860_set_bias_level(struct snd_soc_component *component,
496 enum snd_soc_bias_level level)
497{
498 struct max9860_priv *max9860 = dev_get_drvdata(component->dev);
499 int ret;
500
501 switch (level) {
502 case SND_SOC_BIAS_ON:
503 case SND_SOC_BIAS_PREPARE:
504 break;
505
506 case SND_SOC_BIAS_STANDBY:
507 ret = regmap_update_bits(max9860->regmap, MAX9860_PWRMAN,
508 MAX9860_SHDN, MAX9860_SHDN);
509 if (ret) {
510 dev_err(component->dev, "Failed to remove SHDN: %d\n",
511 ret);
512 return ret;
513 }
514 break;
515
516 case SND_SOC_BIAS_OFF:
517 ret = regmap_update_bits(max9860->regmap, MAX9860_PWRMAN,
518 MAX9860_SHDN, 0);
519 if (ret) {
520 dev_err(component->dev, "Failed to request SHDN: %d\n",
521 ret);
522 return ret;
523 }
524 break;
525 }
526
527 return 0;
528}
529
530static const struct snd_soc_component_driver max9860_component_driver = {
531 .set_bias_level = max9860_set_bias_level,
532 .controls = max9860_controls,
533 .num_controls = ARRAY_SIZE(max9860_controls),
534 .dapm_widgets = max9860_dapm_widgets,
535 .num_dapm_widgets = ARRAY_SIZE(max9860_dapm_widgets),
536 .dapm_routes = max9860_dapm_routes,
537 .num_dapm_routes = ARRAY_SIZE(max9860_dapm_routes),
538 .use_pmdown_time = 1,
539 .endianness = 1,
540 .non_legacy_dai_naming = 1,
541};
542
543#ifdef CONFIG_PM
544static int max9860_suspend(struct device *dev)
545{
546 struct max9860_priv *max9860 = dev_get_drvdata(dev);
547 int ret;
548
549 ret = regmap_update_bits(max9860->regmap, MAX9860_SYSCLK,
550 MAX9860_PSCLK, MAX9860_PSCLK_OFF);
551 if (ret) {
552 dev_err(dev, "Failed to disable clock: %d\n", ret);
553 return ret;
554 }
555
556 regulator_disable(max9860->dvddio);
557
558 return 0;
559}
560
561static int max9860_resume(struct device *dev)
562{
563 struct max9860_priv *max9860 = dev_get_drvdata(dev);
564 int ret;
565
566 ret = regulator_enable(max9860->dvddio);
567 if (ret) {
568 dev_err(dev, "Failed to enable DVDDIO: %d\n", ret);
569 return ret;
570 }
571
572 regcache_cache_only(max9860->regmap, false);
573 ret = regcache_sync(max9860->regmap);
574 if (ret) {
575 dev_err(dev, "Failed to sync cache: %d\n", ret);
576 return ret;
577 }
578
579 ret = regmap_update_bits(max9860->regmap, MAX9860_SYSCLK,
580 MAX9860_PSCLK, max9860->psclk);
581 if (ret) {
582 dev_err(dev, "Failed to enable clock: %d\n", ret);
583 return ret;
584 }
585
586 return 0;
587}
588#endif
589
590static const struct dev_pm_ops max9860_pm_ops = {
591 SET_RUNTIME_PM_OPS(max9860_suspend, max9860_resume, NULL)
592};
593
594static int max9860_probe(struct i2c_client *i2c)
595{
596 struct device *dev = &i2c->dev;
597 struct max9860_priv *max9860;
598 int ret;
599 struct clk *mclk;
600 unsigned long mclk_rate;
601 int i;
602 int intr;
603
604 max9860 = devm_kzalloc(dev, sizeof(struct max9860_priv), GFP_KERNEL);
605 if (!max9860)
606 return -ENOMEM;
607
608 max9860->dvddio = devm_regulator_get(dev, "DVDDIO");
609 if (IS_ERR(max9860->dvddio)) {
610 ret = PTR_ERR(max9860->dvddio);
611 if (ret != -EPROBE_DEFER)
612 dev_err(dev, "Failed to get DVDDIO supply: %d\n", ret);
613 return ret;
614 }
615
616 max9860->dvddio_nb.notifier_call = max9860_dvddio_event;
617
618 ret = devm_regulator_register_notifier(max9860->dvddio,
619 &max9860->dvddio_nb);
620 if (ret)
621 dev_err(dev, "Failed to register DVDDIO notifier: %d\n", ret);
622
623 ret = regulator_enable(max9860->dvddio);
624 if (ret != 0) {
625 dev_err(dev, "Failed to enable DVDDIO: %d\n", ret);
626 return ret;
627 }
628
629 max9860->regmap = devm_regmap_init_i2c(i2c, &max9860_regmap);
630 if (IS_ERR(max9860->regmap)) {
631 ret = PTR_ERR(max9860->regmap);
632 goto err_regulator;
633 }
634
635 dev_set_drvdata(dev, max9860);
636
637
638
639
640
641
642 mclk = clk_get(dev, "mclk");
643
644 if (IS_ERR(mclk)) {
645 ret = PTR_ERR(mclk);
646 if (ret != -EPROBE_DEFER)
647 dev_err(dev, "Failed to get MCLK: %d\n", ret);
648 goto err_regulator;
649 }
650
651 mclk_rate = clk_get_rate(mclk);
652 clk_put(mclk);
653
654 if (mclk_rate > 60000000 || mclk_rate < 10000000) {
655 dev_err(dev, "Bad mclk %luHz (needs 10MHz - 60MHz)\n",
656 mclk_rate);
657 ret = -EINVAL;
658 goto err_regulator;
659 }
660 if (mclk_rate >= 40000000)
661 max9860->psclk = 3;
662 else if (mclk_rate >= 20000000)
663 max9860->psclk = 2;
664 else
665 max9860->psclk = 1;
666 max9860->pclk_rate = mclk_rate >> (max9860->psclk - 1);
667 max9860->psclk <<= MAX9860_PSCLK_SHIFT;
668 dev_dbg(dev, "mclk %lu pclk %lu\n", mclk_rate, max9860->pclk_rate);
669
670 regcache_cache_bypass(max9860->regmap, true);
671 for (i = 0; i < max9860_regmap.num_reg_defaults; ++i) {
672 ret = regmap_write(max9860->regmap,
673 max9860_regmap.reg_defaults[i].reg,
674 max9860_regmap.reg_defaults[i].def);
675 if (ret) {
676 dev_err(dev, "Failed to initialize register %u: %d\n",
677 max9860_regmap.reg_defaults[i].reg, ret);
678 goto err_regulator;
679 }
680 }
681 regcache_cache_bypass(max9860->regmap, false);
682
683 ret = regmap_read(max9860->regmap, MAX9860_INTRSTATUS, &intr);
684 if (ret) {
685 dev_err(dev, "Failed to clear INTRSTATUS: %d\n", ret);
686 goto err_regulator;
687 }
688
689 pm_runtime_set_active(dev);
690 pm_runtime_enable(dev);
691 pm_runtime_idle(dev);
692
693 ret = devm_snd_soc_register_component(dev, &max9860_component_driver,
694 &max9860_dai, 1);
695 if (ret) {
696 dev_err(dev, "Failed to register CODEC: %d\n", ret);
697 goto err_pm;
698 }
699
700 return 0;
701
702err_pm:
703 pm_runtime_disable(dev);
704err_regulator:
705 regulator_disable(max9860->dvddio);
706 return ret;
707}
708
709static int max9860_remove(struct i2c_client *i2c)
710{
711 struct device *dev = &i2c->dev;
712 struct max9860_priv *max9860 = dev_get_drvdata(dev);
713
714 pm_runtime_disable(dev);
715 regulator_disable(max9860->dvddio);
716 return 0;
717}
718
719static const struct i2c_device_id max9860_i2c_id[] = {
720 { "max9860", },
721 { }
722};
723MODULE_DEVICE_TABLE(i2c, max9860_i2c_id);
724
725static const struct of_device_id max9860_of_match[] = {
726 { .compatible = "maxim,max9860", },
727 { }
728};
729MODULE_DEVICE_TABLE(of, max9860_of_match);
730
731static struct i2c_driver max9860_i2c_driver = {
732 .probe_new = max9860_probe,
733 .remove = max9860_remove,
734 .id_table = max9860_i2c_id,
735 .driver = {
736 .name = "max9860",
737 .of_match_table = max9860_of_match,
738 .pm = &max9860_pm_ops,
739 },
740};
741
742module_i2c_driver(max9860_i2c_driver);
743
744MODULE_DESCRIPTION("ASoC MAX9860 Mono Audio Voice Codec driver");
745MODULE_AUTHOR("Peter Rosin <peda@axentia.se>");
746MODULE_LICENSE("GPL v2");
747
