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Linux/sound/soc/codecs/ssm2602.c

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

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