1// SPDX-License-Identifier: GPL-2.0-or-later
2//
3// File: sound/soc/codecs/ssm2602.c
4// Author: Cliff Cai <Cliff.Cai@analog.com>
5//
6// Created: Tue June 06 2008
7// Description: Driver for ssm2602 sound chip
8//
9// Modified:
10// Copyright 2008 Analog Devices Inc.
11//
12// Bugs: Enter bugs at http://blackfin.uclinux.org/
13
14#include <linux/delay.h>
15#include <linux/module.h>
16#include <linux/regmap.h>
17#include <linux/slab.h>
18
19#include <sound/pcm.h>
20#include <sound/pcm_params.h>
21#include <sound/soc.h>
22#include <sound/tlv.h>
23
24#include "ssm2602.h"
25
26/* codec private data */
27struct ssm2602_priv {
28 unsigned int sysclk;
29 const struct snd_pcm_hw_constraint_list *sysclk_constraints;
30
31 struct regmap *regmap;
32
33 enum ssm2602_type type;
34 unsigned int clk_out_pwr;
35};
36
37/*
38 * ssm2602 register cache
39 * We can't read the ssm2602 register space when we are
40 * using 2 wire for device control, so we cache them instead.
41 * There is no point in caching the reset register
42 */
43static const struct reg_default ssm2602_reg[SSM2602_CACHEREGNUM] = {
44 { .reg = 0x00, .def = 0x0097 },
45 { .reg = 0x01, .def = 0x0097 },
46 { .reg = 0x02, .def = 0x0079 },
47 { .reg = 0x03, .def = 0x0079 },
48 { .reg = 0x04, .def = 0x000a },
49 { .reg = 0x05, .def = 0x0008 },
50 { .reg = 0x06, .def = 0x009f },
51 { .reg = 0x07, .def = 0x000a },
52 { .reg = 0x08, .def = 0x0000 },
53 { .reg = 0x09, .def = 0x0000 }
54};
55
56/*
57 * ssm2602 register patch
58 * Workaround for playback distortions after power up: activates digital
59 * core, and then powers on output, DAC, and whole chip at the same time
60 */
61
62static const struct reg_sequence ssm2602_patch[] = {
63 { SSM2602_ACTIVE, 0x01 },
64 { SSM2602_PWR, 0x07 },
65 { SSM2602_RESET, 0x00 },
66};
67
68
69/*Appending several "None"s just for OSS mixer use*/
70static const char *ssm2602_input_select[] = {
71 "Line", "Mic",
72};
73
74static const char *ssm2602_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
75
76static const struct soc_enum ssm2602_enum[] = {
77 SOC_ENUM_SINGLE(SSM2602_APANA, 2, ARRAY_SIZE(ssm2602_input_select),
78 ssm2602_input_select),
79 SOC_ENUM_SINGLE(SSM2602_APDIGI, 1, ARRAY_SIZE(ssm2602_deemph),
80 ssm2602_deemph),
81};
82
83static const DECLARE_TLV_DB_RANGE(ssm260x_outmix_tlv,
84 0, 47, TLV_DB_SCALE_ITEM(TLV_DB_GAIN_MUTE, 0, 0),
85 48, 127, TLV_DB_SCALE_ITEM(-7400, 100, 0)
86);
87
88static const DECLARE_TLV_DB_SCALE(ssm260x_inpga_tlv, -3450, 150, 0);
89static const DECLARE_TLV_DB_SCALE(ssm260x_sidetone_tlv, -1500, 300, 0);
90
91static const struct snd_kcontrol_new ssm260x_snd_controls[] = {
92SOC_DOUBLE_R_TLV("Capture Volume", SSM2602_LINVOL, SSM2602_RINVOL, 0, 45, 0,
93 ssm260x_inpga_tlv),
94SOC_DOUBLE_R("Capture Switch", SSM2602_LINVOL, SSM2602_RINVOL, 7, 1, 1),
95
96SOC_SINGLE("ADC High Pass Filter Switch", SSM2602_APDIGI, 0, 1, 1),
97SOC_SINGLE("Store DC Offset Switch", SSM2602_APDIGI, 4, 1, 0),
98
99SOC_ENUM("Playback De-emphasis", ssm2602_enum[1]),
100};
101
102static const struct snd_kcontrol_new ssm2602_snd_controls[] = {
103SOC_DOUBLE_R_TLV("Master Playback Volume", SSM2602_LOUT1V, SSM2602_ROUT1V,
104 0, 127, 0, ssm260x_outmix_tlv),
105SOC_DOUBLE_R("Master Playback ZC Switch", SSM2602_LOUT1V, SSM2602_ROUT1V,
106 7, 1, 0),
107SOC_SINGLE_TLV("Sidetone Playback Volume", SSM2602_APANA, 6, 3, 1,
108 ssm260x_sidetone_tlv),
109
110SOC_SINGLE("Mic Boost (+20dB)", SSM2602_APANA, 0, 1, 0),
111SOC_SINGLE("Mic Boost2 (+20dB)", SSM2602_APANA, 8, 1, 0),
112};
113
114/* Output Mixer */
115static const struct snd_kcontrol_new ssm260x_output_mixer_controls[] = {
116SOC_DAPM_SINGLE("Line Bypass Switch", SSM2602_APANA, 3, 1, 0),
117SOC_DAPM_SINGLE("HiFi Playback Switch", SSM2602_APANA, 4, 1, 0),
118SOC_DAPM_SINGLE("Mic Sidetone Switch", SSM2602_APANA, 5, 1, 0),
119};
120
121static const struct snd_kcontrol_new mic_ctl =
122 SOC_DAPM_SINGLE("Switch", SSM2602_APANA, 1, 1, 1);
123
124/* Input mux */
125static const struct snd_kcontrol_new ssm2602_input_mux_controls =
126SOC_DAPM_ENUM("Input Select", ssm2602_enum[0]);
127
128static int ssm2602_mic_switch_event(struct snd_soc_dapm_widget *w,
129 struct snd_kcontrol *kcontrol, int event)
130{
131 /*
132 * According to the ssm2603 data sheet (control register sequencing),
133 * the digital core should be activated only after all necessary bits
134 * in the power register are enabled, and a delay determined by the
135 * decoupling capacitor on the VMID pin has passed. If the digital core
136 * is activated too early, or even before the ADC is powered up, audible
137 * artifacts appear at the beginning and end of the recorded signal.
138 *
139 * In practice, audible artifacts disappear well over 500 ms.
140 */
141 msleep(msecs: 500);
142
143 return 0;
144}
145
146static const struct snd_soc_dapm_widget ssm260x_dapm_widgets[] = {
147SND_SOC_DAPM_DAC("DAC", "HiFi Playback", SSM2602_PWR, 3, 1),
148SND_SOC_DAPM_ADC("ADC", "HiFi Capture", SSM2602_PWR, 2, 1),
149SND_SOC_DAPM_PGA("Line Input", SSM2602_PWR, 0, 1, NULL, 0),
150
151SND_SOC_DAPM_SUPPLY("Digital Core Power", SSM2602_ACTIVE, 0, 0, NULL, 0),
152
153SND_SOC_DAPM_OUTPUT("LOUT"),
154SND_SOC_DAPM_OUTPUT("ROUT"),
155SND_SOC_DAPM_INPUT("RLINEIN"),
156SND_SOC_DAPM_INPUT("LLINEIN"),
157};
158
159static const struct snd_soc_dapm_widget ssm2602_dapm_widgets[] = {
160SND_SOC_DAPM_MIXER("Output Mixer", SSM2602_PWR, 4, 1,
161 ssm260x_output_mixer_controls,
162 ARRAY_SIZE(ssm260x_output_mixer_controls)),
163
164SND_SOC_DAPM_MUX("Input Mux", SND_SOC_NOPM, 0, 0, &ssm2602_input_mux_controls),
165SND_SOC_DAPM_MICBIAS("Mic Bias", SSM2602_PWR, 1, 1),
166
167SND_SOC_DAPM_SWITCH_E("Mic Switch", SSM2602_APANA, 1, 1, &mic_ctl,
168 ssm2602_mic_switch_event, SND_SOC_DAPM_PRE_PMU),
169
170SND_SOC_DAPM_OUTPUT("LHPOUT"),
171SND_SOC_DAPM_OUTPUT("RHPOUT"),
172SND_SOC_DAPM_INPUT("MICIN"),
173};
174
175static const struct snd_soc_dapm_widget ssm2604_dapm_widgets[] = {
176SND_SOC_DAPM_MIXER("Output Mixer", SND_SOC_NOPM, 0, 0,
177 ssm260x_output_mixer_controls,
178 ARRAY_SIZE(ssm260x_output_mixer_controls) - 1), /* Last element is the mic */
179};
180
181static const struct snd_soc_dapm_route ssm260x_routes[] = {
182 {"DAC", NULL, "Digital Core Power"},
183 {"ADC", NULL, "Digital Core Power"},
184
185 {"Output Mixer", "Line Bypass Switch", "Line Input"},
186 {"Output Mixer", "HiFi Playback Switch", "DAC"},
187
188 {"ROUT", NULL, "Output Mixer"},
189 {"LOUT", NULL, "Output Mixer"},
190
191 {"Line Input", NULL, "LLINEIN"},
192 {"Line Input", NULL, "RLINEIN"},
193};
194
195static const struct snd_soc_dapm_route ssm2602_routes[] = {
196 {"Output Mixer", "Mic Sidetone Switch", "Mic Bias"},
197
198 {"RHPOUT", NULL, "Output Mixer"},
199 {"LHPOUT", NULL, "Output Mixer"},
200
201 {"Input Mux", "Line", "Line Input"},
202 {"Input Mux", "Mic", "Mic Switch"},
203 {"ADC", NULL, "Input Mux"},
204
205 {"Mic Switch", NULL, "Mic Bias"},
206
207 {"Mic Bias", NULL, "MICIN"},
208};
209
210static const struct snd_soc_dapm_route ssm2604_routes[] = {
211 {"ADC", NULL, "Line Input"},
212};
213
214static const unsigned int ssm2602_rates_12288000[] = {
215 8000, 16000, 32000, 48000, 96000,
216};
217
218static const struct snd_pcm_hw_constraint_list ssm2602_constraints_12288000 = {
219 .list = ssm2602_rates_12288000,
220 .count = ARRAY_SIZE(ssm2602_rates_12288000),
221};
222
223static const unsigned int ssm2602_rates_11289600[] = {
224 8000, 11025, 22050, 44100, 88200,
225};
226
227static const struct snd_pcm_hw_constraint_list ssm2602_constraints_11289600 = {
228 .list = ssm2602_rates_11289600,
229 .count = ARRAY_SIZE(ssm2602_rates_11289600),
230};
231
232struct ssm2602_coeff {
233 u32 mclk;
234 u32 rate;
235 u8 srate;
236};
237
238#define SSM2602_COEFF_SRATE(sr, bosr, usb) (((sr) << 2) | ((bosr) << 1) | (usb))
239
240/* codec mclk clock coefficients */
241static const struct ssm2602_coeff ssm2602_coeff_table[] = {
242 /* 48k */
243 {12288000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x0)},
244 {18432000, 48000, SSM2602_COEFF_SRATE(0x0, 0x1, 0x0)},
245 {12000000, 48000, SSM2602_COEFF_SRATE(0x0, 0x0, 0x1)},
246
247 /* 32k */
248 {12288000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x0)},
249 {18432000, 32000, SSM2602_COEFF_SRATE(0x6, 0x1, 0x0)},
250 {12000000, 32000, SSM2602_COEFF_SRATE(0x6, 0x0, 0x1)},
251
252 /* 16k */
253 {12288000, 16000, SSM2602_COEFF_SRATE(0x5, 0x0, 0x0)},
254 {18432000, 16000, SSM2602_COEFF_SRATE(0x5, 0x1, 0x0)},
255 {12000000, 16000, SSM2602_COEFF_SRATE(0xa, 0x0, 0x1)},
256
257 /* 8k */
258 {12288000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x0)},
259 {18432000, 8000, SSM2602_COEFF_SRATE(0x3, 0x1, 0x0)},
260 {11289600, 8000, SSM2602_COEFF_SRATE(0xb, 0x0, 0x0)},
261 {16934400, 8000, SSM2602_COEFF_SRATE(0xb, 0x1, 0x0)},
262 {12000000, 8000, SSM2602_COEFF_SRATE(0x3, 0x0, 0x1)},
263
264 /* 96k */
265 {12288000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x0)},
266 {18432000, 96000, SSM2602_COEFF_SRATE(0x7, 0x1, 0x0)},
267 {12000000, 96000, SSM2602_COEFF_SRATE(0x7, 0x0, 0x1)},
268
269 /* 11.025k */
270 {11289600, 11025, SSM2602_COEFF_SRATE(0xc, 0x0, 0x0)},
271 {16934400, 11025, SSM2602_COEFF_SRATE(0xc, 0x1, 0x0)},
272 {12000000, 11025, SSM2602_COEFF_SRATE(0xc, 0x1, 0x1)},
273
274 /* 22.05k */
275 {11289600, 22050, SSM2602_COEFF_SRATE(0xd, 0x0, 0x0)},
276 {16934400, 22050, SSM2602_COEFF_SRATE(0xd, 0x1, 0x0)},
277 {12000000, 22050, SSM2602_COEFF_SRATE(0xd, 0x1, 0x1)},
278
279 /* 44.1k */
280 {11289600, 44100, SSM2602_COEFF_SRATE(0x8, 0x0, 0x0)},
281 {16934400, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x0)},
282 {12000000, 44100, SSM2602_COEFF_SRATE(0x8, 0x1, 0x1)},
283
284 /* 88.2k */
285 {11289600, 88200, SSM2602_COEFF_SRATE(0xf, 0x0, 0x0)},
286 {16934400, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x0)},
287 {12000000, 88200, SSM2602_COEFF_SRATE(0xf, 0x1, 0x1)},
288};
289
290static inline int ssm2602_get_coeff(int mclk, int rate)
291{
292 int i;
293
294 for (i = 0; i < ARRAY_SIZE(ssm2602_coeff_table); i++) {
295 if (ssm2602_coeff_table[i].rate == rate) {
296 if (ssm2602_coeff_table[i].mclk == mclk)
297 return ssm2602_coeff_table[i].srate;
298 if (ssm2602_coeff_table[i].mclk == mclk / 2)
299 return ssm2602_coeff_table[i].srate | SRATE_CORECLK_DIV2;
300 }
301 }
302 return -EINVAL;
303}
304
305static int ssm2602_hw_params(struct snd_pcm_substream *substream,
306 struct snd_pcm_hw_params *params,
307 struct snd_soc_dai *dai)
308{
309 struct snd_soc_component *component = dai->component;
310 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(c: component);
311 int srate = ssm2602_get_coeff(mclk: ssm2602->sysclk, rate: params_rate(p: params));
312 unsigned int iface;
313
314 if (srate < 0)
315 return srate;
316
317 regmap_write(map: ssm2602->regmap, SSM2602_SRATE, val: srate);
318
319 /* bit size */
320 switch (params_width(p: params)) {
321 case 16:
322 iface = 0x0;
323 break;
324 case 20:
325 iface = 0x4;
326 break;
327 case 24:
328 iface = 0x8;
329 break;
330 case 32:
331 iface = 0xc;
332 break;
333 default:
334 return -EINVAL;
335 }
336 regmap_update_bits(map: ssm2602->regmap, SSM2602_IFACE,
337 IFACE_AUDIO_DATA_LEN, val: iface);
338 return 0;
339}
340
341static int ssm2602_startup(struct snd_pcm_substream *substream,
342 struct snd_soc_dai *dai)
343{
344 struct snd_soc_component *component = dai->component;
345 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(c: component);
346
347 if (ssm2602->sysclk_constraints) {
348 snd_pcm_hw_constraint_list(runtime: substream->runtime, cond: 0,
349 SNDRV_PCM_HW_PARAM_RATE,
350 l: ssm2602->sysclk_constraints);
351 }
352
353 return 0;
354}
355
356static int ssm2602_mute(struct snd_soc_dai *dai, int mute, int direction)
357{
358 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(c: dai->component);
359
360 if (mute)
361 regmap_update_bits(map: ssm2602->regmap, SSM2602_APDIGI,
362 APDIGI_ENABLE_DAC_MUTE,
363 APDIGI_ENABLE_DAC_MUTE);
364 else
365 regmap_update_bits(map: ssm2602->regmap, SSM2602_APDIGI,
366 APDIGI_ENABLE_DAC_MUTE, val: 0);
367 return 0;
368}
369
370static int ssm2602_set_dai_sysclk(struct snd_soc_dai *codec_dai,
371 int clk_id, unsigned int freq, int dir)
372{
373 struct snd_soc_component *component = codec_dai->component;
374 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(c: component);
375
376 if (dir == SND_SOC_CLOCK_IN) {
377 if (clk_id != SSM2602_SYSCLK)
378 return -EINVAL;
379
380 switch (freq) {
381 case 12288000:
382 case 18432000:
383 case 24576000:
384 case 36864000:
385 ssm2602->sysclk_constraints = &ssm2602_constraints_12288000;
386 break;
387 case 11289600:
388 case 16934400:
389 case 22579200:
390 case 33868800:
391 ssm2602->sysclk_constraints = &ssm2602_constraints_11289600;
392 break;
393 case 12000000:
394 case 24000000:
395 ssm2602->sysclk_constraints = NULL;
396 break;
397 default:
398 return -EINVAL;
399 }
400
401 ssm2602->sysclk = freq;
402 } else {
403 unsigned int mask;
404
405 switch (clk_id) {
406 case SSM2602_CLK_CLKOUT:
407 mask = PWR_CLK_OUT_PDN;
408 break;
409 case SSM2602_CLK_XTO:
410 mask = PWR_OSC_PDN;
411 break;
412 default:
413 return -EINVAL;
414 }
415
416 if (freq == 0)
417 ssm2602->clk_out_pwr |= mask;
418 else
419 ssm2602->clk_out_pwr &= ~mask;
420
421 regmap_update_bits(map: ssm2602->regmap, SSM2602_PWR,
422 PWR_CLK_OUT_PDN | PWR_OSC_PDN, val: ssm2602->clk_out_pwr);
423 }
424
425 return 0;
426}
427
428static int ssm2602_set_dai_fmt(struct snd_soc_dai *codec_dai,
429 unsigned int fmt)
430{
431 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(c: codec_dai->component);
432 unsigned int iface = 0;
433
434 /* set master/slave audio interface */
435 switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
436 case SND_SOC_DAIFMT_CBP_CFP:
437 iface |= 0x0040;
438 break;
439 case SND_SOC_DAIFMT_CBC_CFC:
440 break;
441 default:
442 return -EINVAL;
443 }
444
445 /* interface format */
446 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
447 case SND_SOC_DAIFMT_I2S:
448 iface |= 0x0002;
449 break;
450 case SND_SOC_DAIFMT_RIGHT_J:
451 break;
452 case SND_SOC_DAIFMT_LEFT_J:
453 iface |= 0x0001;
454 break;
455 case SND_SOC_DAIFMT_DSP_A:
456 iface |= 0x0013;
457 break;
458 case SND_SOC_DAIFMT_DSP_B:
459 iface |= 0x0003;
460 break;
461 default:
462 return -EINVAL;
463 }
464
465 /* clock inversion */
466 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
467 case SND_SOC_DAIFMT_NB_NF:
468 break;
469 case SND_SOC_DAIFMT_IB_IF:
470 iface |= 0x0090;
471 break;
472 case SND_SOC_DAIFMT_IB_NF:
473 iface |= 0x0080;
474 break;
475 case SND_SOC_DAIFMT_NB_IF:
476 iface |= 0x0010;
477 break;
478 default:
479 return -EINVAL;
480 }
481
482 /* set iface */
483 regmap_write(map: ssm2602->regmap, SSM2602_IFACE, val: iface);
484 return 0;
485}
486
487static int ssm2602_set_bias_level(struct snd_soc_component *component,
488 enum snd_soc_bias_level level)
489{
490 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(c: component);
491
492 switch (level) {
493 case SND_SOC_BIAS_ON:
494 /* vref/mid on, osc and clkout on if enabled */
495 regmap_update_bits(map: ssm2602->regmap, SSM2602_PWR,
496 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
497 val: ssm2602->clk_out_pwr);
498 break;
499 case SND_SOC_BIAS_PREPARE:
500 break;
501 case SND_SOC_BIAS_STANDBY:
502 /* everything off except vref/vmid, */
503 regmap_update_bits(map: ssm2602->regmap, SSM2602_PWR,
504 PWR_POWER_OFF | PWR_CLK_OUT_PDN | PWR_OSC_PDN,
505 PWR_CLK_OUT_PDN | PWR_OSC_PDN);
506 break;
507 case SND_SOC_BIAS_OFF:
508 /* everything off */
509 regmap_update_bits(map: ssm2602->regmap, SSM2602_PWR,
510 PWR_POWER_OFF, PWR_POWER_OFF);
511 break;
512
513 }
514 return 0;
515}
516
517#define SSM2602_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
518 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
519 SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 |\
520 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 |\
521 SNDRV_PCM_RATE_96000)
522
523#define SSM2602_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
524 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
525
526static const struct snd_soc_dai_ops ssm2602_dai_ops = {
527 .startup = ssm2602_startup,
528 .hw_params = ssm2602_hw_params,
529 .mute_stream = ssm2602_mute,
530 .set_sysclk = ssm2602_set_dai_sysclk,
531 .set_fmt = ssm2602_set_dai_fmt,
532 .no_capture_mute = 1,
533};
534
535static struct snd_soc_dai_driver ssm2602_dai = {
536 .name = "ssm2602-hifi",
537 .playback = {
538 .stream_name = "Playback",
539 .channels_min = 2,
540 .channels_max = 2,
541 .rates = SSM2602_RATES,
542 .formats = SSM2602_FORMATS,},
543 .capture = {
544 .stream_name = "Capture",
545 .channels_min = 2,
546 .channels_max = 2,
547 .rates = SSM2602_RATES,
548 .formats = SSM2602_FORMATS,},
549 .ops = &ssm2602_dai_ops,
550 .symmetric_rate = 1,
551 .symmetric_sample_bits = 1,
552};
553
554static int ssm2602_resume(struct snd_soc_component *component)
555{
556 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(c: component);
557
558 regcache_sync(map: ssm2602->regmap);
559
560 return 0;
561}
562
563static int ssm2602_component_probe(struct snd_soc_component *component)
564{
565 struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component);
566 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(c: component);
567 int ret;
568
569 regmap_update_bits(map: ssm2602->regmap, SSM2602_LOUT1V,
570 LOUT1V_LRHP_BOTH, LOUT1V_LRHP_BOTH);
571 regmap_update_bits(map: ssm2602->regmap, SSM2602_ROUT1V,
572 ROUT1V_RLHP_BOTH, ROUT1V_RLHP_BOTH);
573
574 ret = snd_soc_add_component_controls(component, controls: ssm2602_snd_controls,
575 ARRAY_SIZE(ssm2602_snd_controls));
576 if (ret)
577 return ret;
578
579 ret = snd_soc_dapm_new_controls(dapm, widget: ssm2602_dapm_widgets,
580 ARRAY_SIZE(ssm2602_dapm_widgets));
581 if (ret)
582 return ret;
583
584 return snd_soc_dapm_add_routes(dapm, route: ssm2602_routes,
585 ARRAY_SIZE(ssm2602_routes));
586}
587
588static int ssm2604_component_probe(struct snd_soc_component *component)
589{
590 struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component);
591 int ret;
592
593 ret = snd_soc_dapm_new_controls(dapm, widget: ssm2604_dapm_widgets,
594 ARRAY_SIZE(ssm2604_dapm_widgets));
595 if (ret)
596 return ret;
597
598 return snd_soc_dapm_add_routes(dapm, route: ssm2604_routes,
599 ARRAY_SIZE(ssm2604_routes));
600}
601
602static int ssm260x_component_probe(struct snd_soc_component *component)
603{
604 struct ssm2602_priv *ssm2602 = snd_soc_component_get_drvdata(c: component);
605 int ret;
606
607 ret = regmap_write(map: ssm2602->regmap, SSM2602_RESET, val: 0);
608 if (ret < 0) {
609 dev_err(component->dev, "Failed to issue reset: %d\n", ret);
610 return ret;
611 }
612
613 regmap_register_patch(map: ssm2602->regmap, regs: ssm2602_patch,
614 ARRAY_SIZE(ssm2602_patch));
615
616 /* set the update bits */
617 regmap_update_bits(map: ssm2602->regmap, SSM2602_LINVOL,
618 LINVOL_LRIN_BOTH, LINVOL_LRIN_BOTH);
619 regmap_update_bits(map: ssm2602->regmap, SSM2602_RINVOL,
620 RINVOL_RLIN_BOTH, RINVOL_RLIN_BOTH);
621 /*select Line in as default input*/
622 regmap_write(map: ssm2602->regmap, SSM2602_APANA, APANA_SELECT_DAC |
623 APANA_ENABLE_MIC_BOOST);
624
625 switch (ssm2602->type) {
626 case SSM2602:
627 ret = ssm2602_component_probe(component);
628 break;
629 case SSM2604:
630 ret = ssm2604_component_probe(component);
631 break;
632 }
633
634 return ret;
635}
636
637static const struct snd_soc_component_driver soc_component_dev_ssm2602 = {
638 .probe = ssm260x_component_probe,
639 .resume = ssm2602_resume,
640 .set_bias_level = ssm2602_set_bias_level,
641 .controls = ssm260x_snd_controls,
642 .num_controls = ARRAY_SIZE(ssm260x_snd_controls),
643 .dapm_widgets = ssm260x_dapm_widgets,
644 .num_dapm_widgets = ARRAY_SIZE(ssm260x_dapm_widgets),
645 .dapm_routes = ssm260x_routes,
646 .num_dapm_routes = ARRAY_SIZE(ssm260x_routes),
647 .suspend_bias_off = 1,
648 .idle_bias_on = 1,
649 .use_pmdown_time = 1,
650 .endianness = 1,
651};
652
653static bool ssm2602_register_volatile(struct device *dev, unsigned int reg)
654{
655 return reg == SSM2602_RESET;
656}
657
658const struct regmap_config ssm2602_regmap_config = {
659 .val_bits = 9,
660 .reg_bits = 7,
661
662 .max_register = SSM2602_RESET,
663 .volatile_reg = ssm2602_register_volatile,
664
665 .cache_type = REGCACHE_RBTREE,
666 .reg_defaults = ssm2602_reg,
667 .num_reg_defaults = ARRAY_SIZE(ssm2602_reg),
668};
669EXPORT_SYMBOL_GPL(ssm2602_regmap_config);
670
671int ssm2602_probe(struct device *dev, enum ssm2602_type type,
672 struct regmap *regmap)
673{
674 struct ssm2602_priv *ssm2602;
675
676 if (IS_ERR(ptr: regmap))
677 return PTR_ERR(ptr: regmap);
678
679 ssm2602 = devm_kzalloc(dev, size: sizeof(*ssm2602), GFP_KERNEL);
680 if (ssm2602 == NULL)
681 return -ENOMEM;
682
683 dev_set_drvdata(dev, data: ssm2602);
684 ssm2602->type = type;
685 ssm2602->regmap = regmap;
686
687 return devm_snd_soc_register_component(dev, component_driver: &soc_component_dev_ssm2602,
688 dai_drv: &ssm2602_dai, num_dai: 1);
689}
690EXPORT_SYMBOL_GPL(ssm2602_probe);
691
692MODULE_DESCRIPTION("ASoC SSM2602/SSM2603/SSM2604 driver");
693MODULE_AUTHOR("Cliff Cai");
694MODULE_LICENSE("GPL");
695

source code of linux/sound/soc/codecs/ssm2602.c