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29#include <linux/module.h>
30#include <linux/regmap.h>
31#include <linux/slab.h>
32
33#include <sound/pcm.h>
34#include <sound/pcm_params.h>
35#include <sound/soc.h>
36#include <sound/tlv.h>
37
38#include "ssm2602.h"
39
40
41struct ssm2602_priv {
42 unsigned int sysclk;
43 const struct snd_pcm_hw_constraint_list *sysclk_constraints;
44
45 struct regmap *regmap;
46
47 enum ssm2602_type type;
48 unsigned int clk_out_pwr;
49};
50
51
52
53
54
55
56
57static const struct reg_default ssm2602_reg[SSM2602_CACHEREGNUM] = {
58 { .reg = 0x00, .def = 0x0097 },
59 { .reg = 0x01, .def = 0x0097 },
60 { .reg = 0x02, .def = 0x0079 },
61 { .reg = 0x03, .def = 0x0079 },
62 { .reg = 0x04, .def = 0x000a },
63 { .reg = 0x05, .def = 0x0008 },
64 { .reg = 0x06, .def = 0x009f },
65 { .reg = 0x07, .def = 0x000a },
66 { .reg = 0x08, .def = 0x0000 },
67 { .reg = 0x09, .def = 0x0000 }
68};
69
70
71
72static const char *ssm2602_input_select[] = {
73 "Line", "Mic",
74};
75
76static const char *ssm2602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
77
78static const struct soc_enum ssm2602_enum[] = {
79 SOC_ENUM_SINGLE(SSM2602_APANA, 2, ARRAY_SIZE(ssm2602_input_select),
80 ssm2602_input_select),
81 SOC_ENUM_SINGLE(SSM2602_APDIGI, 1, ARRAY_SIZE(ssm2602_deemph),
82 ssm2602_deemph),
83};
84
85static const DECLARE_TLV_DB_RANGE(ssm260x_outmix_tlv,
86 0, 47, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 0),
87 48, 127, TLV_DB_SCALE_ITEM(-7400, 100, 0)
88);
89
90static const DECLARE_TLV_DB_SCALE(ssm260x_inpga_tlv, -3450, 150, 0);
91static const DECLARE_TLV_DB_SCALE(ssm260x_sidetone_tlv, -1500, 300, 0);
92
93static const struct snd_kcontrol_new ssm260x_snd_controls[] = {
94SOC_DOUBLE_R_TLV("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 45, 0,
95 ssm260x_inpga_tlv),
96SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1),
97
98SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1),
99SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0),
100
101SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]),
102};
103
104static const struct snd_kcontrol_new ssm2602_snd_controls[] = {
105SOC_DOUBLE_R_TLV("Master Playback Volume", SSM2602_LOUT1V, SSM2602_ROUT1V,
106 0, 127, 0, ssm260x_outmix_tlv),
107SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V, SSM2602_ROUT1V,
108 7, 1, 0),
109SOC_SINGLE_TLV("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1,
110 ssm260x_sidetone_tlv),
111
112SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0),
113SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 8, 1, 0),
114SOC_SINGLE("Mic Switch", SSM2602_APANA, 1, 1, 1),
115};
116
117
118static const struct snd_kcontrol_new ssm260x_output_mixer_controls[] = {
119SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0),
120SOC_DAPM_SINGLE("HiFi Playback Switch", SSM2602_APANA, 4, 1, 0),
121SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0),
122};
123
124
125static const struct snd_kcontrol_new ssm2602_input_mux_controls =
126SOC_DAPM_ENUM("Input Select", ssm2602_enum[0]);
127
128static const struct snd_soc_dapm_widget ssm260x_dapm_widgets[] = {
129SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM2602_PWR, 3, 1),
130SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1),
131SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0),
132
133SND_SOC_DAPM_SUPPLY("Digital Core Power", SSM2602_ACTIVE, 0, 0, NULL, 0),
134
135SND_SOC_DAPM_OUTPUT("LOUT"),
136SND_SOC_DAPM_OUTPUT("ROUT"),
137SND_SOC_DAPM_INPUT("RLINEIN"),
138SND_SOC_DAPM_INPUT("LLINEIN"),
139};
140
141static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = {
142SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1,
143 ssm260x_output_mixer_controls,
144 ARRAY_SIZE(ssm260x_output_mixer_controls)),
145
146SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ssm2602_input_mux_controls),
147SND_SOC_DAPM_MICBIAS("Mic Bias", SSM2602_PWR, 1, 1),
148
149SND_SOC_DAPM_OUTPUT("LHPOUT"),
150SND_SOC_DAPM_OUTPUT("RHPOUT"),
151SND_SOC_DAPM_INPUT("MICIN"),
152};
153
154static const struct snd_soc_dapm_widget ssm2604_dapm_widgets[] = {
155SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0,
156 ssm260x_output_mixer_controls,
157 ARRAY_SIZE(ssm260x_output_mixer_controls) - 1),
158};
159
160static const struct snd_soc_dapm_route ssm260x_routes[] = {
161 {"DAC", NULL, "Digital Core Power"},
162 {"ADC", NULL, "Digital Core Power"},
163
164 {"Output Mixer", "Line Bypass Switch", "Line Input"},
165 {"Output Mixer", "HiFi Playback Switch", "DAC"},
166
167 {"ROUT", NULL, "Output Mixer"},
168 {"LOUT", NULL, "Output Mixer"},
169
170 {"Line Input", NULL, "LLINEIN"},
171 {"Line Input", NULL, "RLINEIN"},
172};
173
174static const struct snd_soc_dapm_route ssm2602_routes[] = {
175 {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"},
176
177 {"RHPOUT", NULL, "Output Mixer"},
178 {"LHPOUT", NULL, "Output Mixer"},
179
180 {"Input Mux", "Line", "Line Input"},
181 {"Input Mux", "Mic", "Mic Bias"},
182 {"ADC", NULL, "Input Mux"},
183
184 {"Mic Bias", NULL, "MICIN"},
185};
186
187static const struct snd_soc_dapm_route ssm2604_routes[] = {
188 {"ADC", NULL, "Line Input"},
189};
190
191static const unsigned int ssm2602_rates_12288000[] = {
192 8000, 16000, 32000, 48000, 96000,
193};
194
195static const struct snd_pcm_hw_constraint_list ssm2602_constraints_12288000 = {
196 .list = ssm2602_rates_12288000,
197 .count = ARRAY_SIZE(ssm2602_rates_12288000),
198};
199
200static const unsigned int ssm2602_rates_11289600[] = {
201 8000, 11025, 22050, 44100, 88200,
202};
203
204static const struct snd_pcm_hw_constraint_list ssm2602_constraints_11289600 = {
205 .list = ssm2602_rates_11289600,
206 .count = ARRAY_SIZE(ssm2602_rates_11289600),
207};
208
209struct ssm2602_coeff {
210 u32 mclk;
211 u32 rate;
212 u8 srate;
213};
214
215#define SSM2602_COEFF_SRATE(sr, bosr, usb) (((sr) << 2) | ((bosr) << 1) | (usb))
216
217
218static const struct ssm2602_coeff ssm2602_coeff_table[] = {
219
220 {12288000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x0)},
221 {18432000, 48000, SSM2602_COEFF_SRATE(0x0, 0x1, 0x0)},
222 {12000000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x1)},
223
224
225 {12288000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x0)},
226 {18432000, 32000, SSM2602_COEFF_SRATE(0x6, 0x1, 0x0)},
227 {12000000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x1)},
228
229
230 {12288000, 16000, SSM2602_COEFF_SRATE(0x5, 0x0, 0x0)},
231 {18432000, 16000, SSM2602_COEFF_SRATE(0x5, 0x1, 0x0)},
232 {12000000, 16000, SSM2602_COEFF_SRATE(0xa, 0x0, 0x1)},
233
234
235 {12288000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x0)},
236 {18432000, 8000, SSM2602_COEFF_SRATE(0x3, 0x1, 0x0)},
237 {11289600, 8000, SSM2602_COEFF_SRATE(0xb, 0x0, 0x0)},
238 {16934400, 8000, SSM2602_COEFF_SRATE(0xb, 0x1, 0x0)},
239 {12000000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x1)},
240
241
242 {12288000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x0)},
243 {18432000, 96000, SSM2602_COEFF_SRATE(0x7, 0x1, 0x0)},
244 {12000000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x1)},
245
246
247 {11289600, 11025, SSM2602_COEFF_SRATE(0xc, 0x0, 0x0)},
248 {16934400, 11025, SSM2602_COEFF_SRATE(0xc, 0x1, 0x0)},
249 {12000000, 11025, SSM2602_COEFF_SRATE(0xc, 0x1, 0x1)},
250
251
252 {11289600, 22050, SSM2602_COEFF_SRATE(0xd, 0x0, 0x0)},
253 {16934400, 22050, SSM2602_COEFF_SRATE(0xd, 0x1, 0x0)},
254 {12000000, 22050, SSM2602_COEFF_SRATE(0xd, 0x1, 0x1)},
255
256
257 {11289600, 44100, SSM2602_COEFF_SRATE(0x8, 0x0, 0x0)},
258 {16934400, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x0)},
259 {12000000, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x1)},
260
261
262 {11289600, 88200, SSM2602_COEFF_SRATE(0xf, 0x0, 0x0)},
263 {16934400, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x0)},
264 {12000000, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x1)},
265};
266
267static inline int ssm2602_get_coeff(int mclk, int rate)
268{
269 int i;
270
271 for (i = 0; i < ARRAY_SIZE(ssm2602_coeff_table); i++) {
272 if (ssm2602_coeff_table[i].rate == rate &&
273 ssm2602_coeff_table[i].mclk == mclk)
274 return ssm2602_coeff_table[i].srate;
275 }
276 return -EINVAL;
277}
278
279static int ssm2602_hw_params(struct snd_pcm_substream *substream,
280 struct snd_pcm_hw_params *params,
281 struct snd_soc_dai *dai)
282{
283 struct snd_soc_component *component = dai->component;
284 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
285 int srate = ssm2602_get_coeff(ssm2602->sysclk, params_rate(params));
286 unsigned int iface;
287
288 if (srate < 0)
289 return srate;
290
291 regmap_write(ssm2602->regmap, SSM2602_SRATE, srate);
292
293
294 switch (params_width(params)) {
295 case 16:
296 iface = 0x0;
297 break;
298 case 20:
299 iface = 0x4;
300 break;
301 case 24:
302 iface = 0x8;
303 break;
304 case 32:
305 iface = 0xc;
306 break;
307 default:
308 return -EINVAL;
309 }
310 regmap_update_bits(ssm2602->regmap, SSM2602_IFACE,
311 IFACE_AUDIO_DATA_LEN, iface);
312 return 0;
313}
314
315static int ssm2602_startup(struct snd_pcm_substream *substream,
316 struct snd_soc_dai *dai)
317{
318 struct snd_soc_component *component = dai->component;
319 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
320
321 if (ssm2602->sysclk_constraints) {
322 snd_pcm_hw_constraint_list(substream->runtime, 0,
323 SNDRV_PCM_HW_PARAM_RATE,
324 ssm2602->sysclk_constraints);
325 }
326
327 return 0;
328}
329
330static int ssm2602_mute(struct snd_soc_dai *dai, int mute)
331{
332 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(dai->component);
333
334 if (mute)
335 regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI,
336 APDIGI_ENABLE_DAC_MUTE,
337 APDIGI_ENABLE_DAC_MUTE);
338 else
339 regmap_update_bits(ssm2602->regmap, SSM2602_APDIGI,
340 APDIGI_ENABLE_DAC_MUTE, 0);
341 return 0;
342}
343
344static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai,
345 int clk_id, unsigned int freq, int dir)
346{
347 struct snd_soc_component *component = codec_dai->component;
348 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
349
350 if (dir == SND_SOC_CLOCK_IN) {
351 if (clk_id != SSM2602_SYSCLK)
352 return -EINVAL;
353
354 switch (freq) {
355 case 12288000:
356 case 18432000:
357 ssm2602->sysclk_constraints = &ssm2602_constraints_12288000;
358 break;
359 case 11289600:
360 case 16934400:
361 ssm2602->sysclk_constraints = &ssm2602_constraints_11289600;
362 break;
363 case 12000000:
364 ssm2602->sysclk_constraints = NULL;
365 break;
366 default:
367 return -EINVAL;
368 }
369 ssm2602->sysclk = freq;
370 } else {
371 unsigned int mask;
372
373 switch (clk_id) {
374 case SSM2602_CLK_CLKOUT:
375 mask = PWR_CLK_OUT_PDN;
376 break;
377 case SSM2602_CLK_XTO:
378 mask = PWR_OSC_PDN;
379 break;
380 default:
381 return -EINVAL;
382 }
383
384 if (freq == 0)
385 ssm2602->clk_out_pwr |= mask;
386 else
387 ssm2602->clk_out_pwr &= ~mask;
388
389 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
390 PWR_CLK_OUT_PDN | PWR_OSC_PDN, ssm2602->clk_out_pwr);
391 }
392
393 return 0;
394}
395
396static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai,
397 unsigned int fmt)
398{
399 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(codec_dai->component);
400 unsigned int iface = 0;
401
402
403 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
404 case SND_SOC_DAIFMT_CBM_CFM:
405 iface |= 0x0040;
406 break;
407 case SND_SOC_DAIFMT_CBS_CFS:
408 break;
409 default:
410 return -EINVAL;
411 }
412
413
414 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
415 case SND_SOC_DAIFMT_I2S:
416 iface |= 0x0002;
417 break;
418 case SND_SOC_DAIFMT_RIGHT_J:
419 break;
420 case SND_SOC_DAIFMT_LEFT_J:
421 iface |= 0x0001;
422 break;
423 case SND_SOC_DAIFMT_DSP_A:
424 iface |= 0x0013;
425 break;
426 case SND_SOC_DAIFMT_DSP_B:
427 iface |= 0x0003;
428 break;
429 default:
430 return -EINVAL;
431 }
432
433
434 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
435 case SND_SOC_DAIFMT_NB_NF:
436 break;
437 case SND_SOC_DAIFMT_IB_IF:
438 iface |= 0x0090;
439 break;
440 case SND_SOC_DAIFMT_IB_NF:
441 iface |= 0x0080;
442 break;
443 case SND_SOC_DAIFMT_NB_IF:
444 iface |= 0x0010;
445 break;
446 default:
447 return -EINVAL;
448 }
449
450
451 regmap_write(ssm2602->regmap, SSM2602_IFACE, iface);
452 return 0;
453}
454
455static int ssm2602_set_bias_level(struct snd_soc_component *component,
456 enum snd_soc_bias_level level)
457{
458 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
459
460 switch (level) {
461 case SND_SOC_BIAS_ON:
462
463 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
464 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
465 ssm2602->clk_out_pwr);
466 break;
467 case SND_SOC_BIAS_PREPARE:
468 break;
469 case SND_SOC_BIAS_STANDBY:
470
471 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
472 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
473 PWR_CLK_OUT_PDN | PWR_OSC_PDN);
474 break;
475 case SND_SOC_BIAS_OFF:
476
477 regmap_update_bits(ssm2602->regmap, SSM2602_PWR,
478 PWR_POWER_OFF, PWR_POWER_OFF);
479 break;
480
481 }
482 return 0;
483}
484
485#define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
486 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
487 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
488 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\
489 SNDRV_PCM_RATE_96000)
490
491#define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
492 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
493
494static const struct snd_soc_dai_ops ssm2602_dai_ops = {
495 .startup = ssm2602_startup,
496 .hw_params = ssm2602_hw_params,
497 .digital_mute = ssm2602_mute,
498 .set_sysclk = ssm2602_set_dai_sysclk,
499 .set_fmt = ssm2602_set_dai_fmt,
500};
501
502static struct snd_soc_dai_driver ssm2602_dai = {
503 .name = "ssm2602-hifi",
504 .playback = {
505 .stream_name = "Playback",
506 .channels_min = 2,
507 .channels_max = 2,
508 .rates = SSM2602_RATES,
509 .formats = SSM2602_FORMATS,},
510 .capture = {
511 .stream_name = "Capture",
512 .channels_min = 2,
513 .channels_max = 2,
514 .rates = SSM2602_RATES,
515 .formats = SSM2602_FORMATS,},
516 .ops = &ssm2602_dai_ops,
517 .symmetric_rates = 1,
518 .symmetric_samplebits = 1,
519};
520
521static int ssm2602_resume(struct snd_soc_component *component)
522{
523 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
524
525 regcache_sync(ssm2602->regmap);
526
527 return 0;
528}
529
530static int ssm2602_component_probe(struct snd_soc_component *component)
531{
532 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
533 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
534 int ret;
535
536 regmap_update_bits(ssm2602->regmap, SSM2602_LOUT1V,
537 LOUT1V_LRHP_BOTH, LOUT1V_LRHP_BOTH);
538 regmap_update_bits(ssm2602->regmap, SSM2602_ROUT1V,
539 ROUT1V_RLHP_BOTH, ROUT1V_RLHP_BOTH);
540
541 ret = snd_soc_add_component_controls(component, ssm2602_snd_controls,
542 ARRAY_SIZE(ssm2602_snd_controls));
543 if (ret)
544 return ret;
545
546 ret = snd_soc_dapm_new_controls(dapm, ssm2602_dapm_widgets,
547 ARRAY_SIZE(ssm2602_dapm_widgets));
548 if (ret)
549 return ret;
550
551 return snd_soc_dapm_add_routes(dapm, ssm2602_routes,
552 ARRAY_SIZE(ssm2602_routes));
553}
554
555static int ssm2604_component_probe(struct snd_soc_component *component)
556{
557 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
558 int ret;
559
560 ret = snd_soc_dapm_new_controls(dapm, ssm2604_dapm_widgets,
561 ARRAY_SIZE(ssm2604_dapm_widgets));
562 if (ret)
563 return ret;
564
565 return snd_soc_dapm_add_routes(dapm, ssm2604_routes,
566 ARRAY_SIZE(ssm2604_routes));
567}
568
569static int ssm260x_component_probe(struct snd_soc_component *component)
570{
571 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(component);
572 int ret;
573
574 ret = regmap_write(ssm2602->regmap, SSM2602_RESET, 0);
575 if (ret < 0) {
576 dev_err(component->dev, "Failed to issue reset: %d\n", ret);
577 return ret;
578 }
579
580
581 regmap_update_bits(ssm2602->regmap, SSM2602_LINVOL,
582 LINVOL_LRIN_BOTH, LINVOL_LRIN_BOTH);
583 regmap_update_bits(ssm2602->regmap, SSM2602_RINVOL,
584 RINVOL_RLIN_BOTH, RINVOL_RLIN_BOTH);
585
586 regmap_write(ssm2602->regmap, SSM2602_APANA, APANA_SELECT_DAC |
587 APANA_ENABLE_MIC_BOOST);
588
589 switch (ssm2602->type) {
590 case SSM2602:
591 ret = ssm2602_component_probe(component);
592 break;
593 case SSM2604:
594 ret = ssm2604_component_probe(component);
595 break;
596 }
597
598 return ret;
599}
600
601static const struct snd_soc_component_driver soc_component_dev_ssm2602 = {
602 .probe = ssm260x_component_probe,
603 .resume = ssm2602_resume,
604 .set_bias_level = ssm2602_set_bias_level,
605 .controls = ssm260x_snd_controls,
606 .num_controls = ARRAY_SIZE(ssm260x_snd_controls),
607 .dapm_widgets = ssm260x_dapm_widgets,
608 .num_dapm_widgets = ARRAY_SIZE(ssm260x_dapm_widgets),
609 .dapm_routes = ssm260x_routes,
610 .num_dapm_routes = ARRAY_SIZE(ssm260x_routes),
611 .suspend_bias_off = 1,
612 .idle_bias_on = 1,
613 .use_pmdown_time = 1,
614 .endianness = 1,
615 .non_legacy_dai_naming = 1,
616};
617
618static bool ssm2602_register_volatile(struct device *dev, unsigned int reg)
619{
620 return reg == SSM2602_RESET;
621}
622
623const struct regmap_config ssm2602_regmap_config = {
624 .val_bits = 9,
625 .reg_bits = 7,
626
627 .max_register = SSM2602_RESET,
628 .volatile_reg = ssm2602_register_volatile,
629
630 .cache_type = REGCACHE_RBTREE,
631 .reg_defaults = ssm2602_reg,
632 .num_reg_defaults = ARRAY_SIZE(ssm2602_reg),
633};
634EXPORT_SYMBOL_GPL(ssm2602_regmap_config);
635
636int ssm2602_probe(struct device *dev, enum ssm2602_type type,
637 struct regmap *regmap)
638{
639 struct ssm2602_priv *ssm2602;
640
641 if (IS_ERR(regmap))
642 return PTR_ERR(regmap);
643
644 ssm2602 = devm_kzalloc(dev, sizeof(*ssm2602), GFP_KERNEL);
645 if (ssm2602 == NULL)
646 return -ENOMEM;
647
648 dev_set_drvdata(dev, ssm2602);
649 ssm2602->type = type;
650 ssm2602->regmap = regmap;
651
652 return devm_snd_soc_register_component(dev, &soc_component_dev_ssm2602,
653 &ssm2602_dai, 1);
654}
655EXPORT_SYMBOL_GPL(ssm2602_probe);
656
657MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 driver");
658MODULE_AUTHOR("Cliff Cai");
659MODULE_LICENSE("GPL");
660
