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18#include <linux/module.h>
19#include <linux/moduleparam.h>
20#include <linux/init.h>
21#include <linux/completion.h>
22#include <linux/delay.h>
23#include <linux/gpio/driver.h>
24#include <linux/pm.h>
25#include <linux/i2c.h>
26#include <linux/regmap.h>
27#include <linux/slab.h>
28#include <linux/irq.h>
29#include <linux/mutex.h>
30#include <sound/core.h>
31#include <sound/jack.h>
32#include <sound/pcm.h>
33#include <sound/pcm_params.h>
34#include <sound/tlv.h>
35#include <sound/soc.h>
36#include <sound/initval.h>
37#include <sound/wm8903.h>
38#include <trace/events/asoc.h>
39
40#include "wm8903.h"
41
42
43static const struct reg_default wm8903_reg_defaults[] = {
44 { 4, 0x0018 },
45 { 5, 0x0000 },
46 { 6, 0x0000 },
47 { 8, 0x0001 },
48 { 10, 0x0001 },
49 { 12, 0x0000 },
50 { 13, 0x0000 },
51 { 14, 0x0000 },
52 { 15, 0x0000 },
53 { 16, 0x0000 },
54 { 17, 0x0000 },
55 { 18, 0x0000 },
56 { 20, 0x0400 },
57 { 21, 0x0D07 },
58 { 22, 0x0000 },
59 { 24, 0x0050 },
60 { 25, 0x0242 },
61 { 26, 0x0008 },
62 { 27, 0x0022 },
63 { 30, 0x00C0 },
64 { 31, 0x00C0 },
65 { 32, 0x0000 },
66 { 33, 0x0000 },
67 { 36, 0x00C0 },
68 { 37, 0x00C0 },
69 { 38, 0x0000 },
70 { 39, 0x0073 },
71 { 40, 0x09BF },
72 { 41, 0x3241 },
73 { 42, 0x0020 },
74 { 43, 0x0000 },
75 { 44, 0x0085 },
76 { 45, 0x0085 },
77 { 46, 0x0044 },
78 { 47, 0x0044 },
79 { 50, 0x0008 },
80 { 51, 0x0004 },
81 { 52, 0x0000 },
82 { 53, 0x0000 },
83 { 54, 0x0000 },
84 { 55, 0x0000 },
85 { 57, 0x002D },
86 { 58, 0x002D },
87 { 59, 0x0039 },
88 { 60, 0x0039 },
89 { 62, 0x0139 },
90 { 63, 0x0139 },
91 { 64, 0x0000 },
92 { 67, 0x0010 },
93 { 69, 0x00A4 },
94 { 90, 0x0000 },
95 { 94, 0x0000 },
96 { 98, 0x0000 },
97 { 104, 0x0000 },
98 { 108, 0x0000 },
99 { 109, 0x0000 },
100 { 110, 0x0000 },
101 { 111, 0x0000 },
102 { 112, 0x0000 },
103 { 114, 0x0000 },
104 { 116, 0x00A8 },
105 { 117, 0x00A8 },
106 { 118, 0x00A8 },
107 { 119, 0x0220 },
108 { 120, 0x01A0 },
109 { 122, 0xFFFF },
110 { 123, 0x0000 },
111 { 126, 0x0000 },
112 { 129, 0x0000 },
113 { 149, 0x6810 },
114 { 164, 0x0028 },
115 { 172, 0x0000 },
116};
117
118struct wm8903_priv {
119 struct wm8903_platform_data *pdata;
120 struct device *dev;
121 struct regmap *regmap;
122
123 int sysclk;
124 int irq;
125
126 struct mutex lock;
127 int fs;
128 int deemph;
129
130 int dcs_pending;
131 int dcs_cache[4];
132
133
134 int class_w_users;
135
136 struct snd_soc_jack *mic_jack;
137 int mic_det;
138 int mic_short;
139 int mic_last_report;
140 int mic_delay;
141
142#ifdef CONFIG_GPIOLIB
143 struct gpio_chip gpio_chip;
144#endif
145};
146
147static bool wm8903_readable_register(struct device *dev, unsigned int reg)
148{
149 switch (reg) {
150 case WM8903_SW_RESET_AND_ID:
151 case WM8903_REVISION_NUMBER:
152 case WM8903_BIAS_CONTROL_0:
153 case WM8903_VMID_CONTROL_0:
154 case WM8903_MIC_BIAS_CONTROL_0:
155 case WM8903_ANALOGUE_DAC_0:
156 case WM8903_ANALOGUE_ADC_0:
157 case WM8903_POWER_MANAGEMENT_0:
158 case WM8903_POWER_MANAGEMENT_1:
159 case WM8903_POWER_MANAGEMENT_2:
160 case WM8903_POWER_MANAGEMENT_3:
161 case WM8903_POWER_MANAGEMENT_4:
162 case WM8903_POWER_MANAGEMENT_5:
163 case WM8903_POWER_MANAGEMENT_6:
164 case WM8903_CLOCK_RATES_0:
165 case WM8903_CLOCK_RATES_1:
166 case WM8903_CLOCK_RATES_2:
167 case WM8903_AUDIO_INTERFACE_0:
168 case WM8903_AUDIO_INTERFACE_1:
169 case WM8903_AUDIO_INTERFACE_2:
170 case WM8903_AUDIO_INTERFACE_3:
171 case WM8903_DAC_DIGITAL_VOLUME_LEFT:
172 case WM8903_DAC_DIGITAL_VOLUME_RIGHT:
173 case WM8903_DAC_DIGITAL_0:
174 case WM8903_DAC_DIGITAL_1:
175 case WM8903_ADC_DIGITAL_VOLUME_LEFT:
176 case WM8903_ADC_DIGITAL_VOLUME_RIGHT:
177 case WM8903_ADC_DIGITAL_0:
178 case WM8903_DIGITAL_MICROPHONE_0:
179 case WM8903_DRC_0:
180 case WM8903_DRC_1:
181 case WM8903_DRC_2:
182 case WM8903_DRC_3:
183 case WM8903_ANALOGUE_LEFT_INPUT_0:
184 case WM8903_ANALOGUE_RIGHT_INPUT_0:
185 case WM8903_ANALOGUE_LEFT_INPUT_1:
186 case WM8903_ANALOGUE_RIGHT_INPUT_1:
187 case WM8903_ANALOGUE_LEFT_MIX_0:
188 case WM8903_ANALOGUE_RIGHT_MIX_0:
189 case WM8903_ANALOGUE_SPK_MIX_LEFT_0:
190 case WM8903_ANALOGUE_SPK_MIX_LEFT_1:
191 case WM8903_ANALOGUE_SPK_MIX_RIGHT_0:
192 case WM8903_ANALOGUE_SPK_MIX_RIGHT_1:
193 case WM8903_ANALOGUE_OUT1_LEFT:
194 case WM8903_ANALOGUE_OUT1_RIGHT:
195 case WM8903_ANALOGUE_OUT2_LEFT:
196 case WM8903_ANALOGUE_OUT2_RIGHT:
197 case WM8903_ANALOGUE_OUT3_LEFT:
198 case WM8903_ANALOGUE_OUT3_RIGHT:
199 case WM8903_ANALOGUE_SPK_OUTPUT_CONTROL_0:
200 case WM8903_DC_SERVO_0:
201 case WM8903_DC_SERVO_2:
202 case WM8903_DC_SERVO_READBACK_1:
203 case WM8903_DC_SERVO_READBACK_2:
204 case WM8903_DC_SERVO_READBACK_3:
205 case WM8903_DC_SERVO_READBACK_4:
206 case WM8903_ANALOGUE_HP_0:
207 case WM8903_ANALOGUE_LINEOUT_0:
208 case WM8903_CHARGE_PUMP_0:
209 case WM8903_CLASS_W_0:
210 case WM8903_WRITE_SEQUENCER_0:
211 case WM8903_WRITE_SEQUENCER_1:
212 case WM8903_WRITE_SEQUENCER_2:
213 case WM8903_WRITE_SEQUENCER_3:
214 case WM8903_WRITE_SEQUENCER_4:
215 case WM8903_CONTROL_INTERFACE:
216 case WM8903_GPIO_CONTROL_1:
217 case WM8903_GPIO_CONTROL_2:
218 case WM8903_GPIO_CONTROL_3:
219 case WM8903_GPIO_CONTROL_4:
220 case WM8903_GPIO_CONTROL_5:
221 case WM8903_INTERRUPT_STATUS_1:
222 case WM8903_INTERRUPT_STATUS_1_MASK:
223 case WM8903_INTERRUPT_POLARITY_1:
224 case WM8903_INTERRUPT_CONTROL:
225 case WM8903_CLOCK_RATE_TEST_4:
226 case WM8903_ANALOGUE_OUTPUT_BIAS_0:
227 return true;
228 default:
229 return false;
230 }
231}
232
233static bool wm8903_volatile_register(struct device *dev, unsigned int reg)
234{
235 switch (reg) {
236 case WM8903_SW_RESET_AND_ID:
237 case WM8903_REVISION_NUMBER:
238 case WM8903_INTERRUPT_STATUS_1:
239 case WM8903_WRITE_SEQUENCER_4:
240 case WM8903_DC_SERVO_READBACK_1:
241 case WM8903_DC_SERVO_READBACK_2:
242 case WM8903_DC_SERVO_READBACK_3:
243 case WM8903_DC_SERVO_READBACK_4:
244 return 1;
245
246 default:
247 return 0;
248 }
249}
250
251static int wm8903_cp_event(struct snd_soc_dapm_widget *w,
252 struct snd_kcontrol *kcontrol, int event)
253{
254 WARN_ON(event != SND_SOC_DAPM_POST_PMU);
255 mdelay(4);
256
257 return 0;
258}
259
260static int wm8903_dcs_event(struct snd_soc_dapm_widget *w,
261 struct snd_kcontrol *kcontrol, int event)
262{
263 struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
264 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
265
266 switch (event) {
267 case SND_SOC_DAPM_POST_PMU:
268 wm8903->dcs_pending |= 1 << w->shift;
269 break;
270 case SND_SOC_DAPM_PRE_PMD:
271 snd_soc_update_bits(codec, WM8903_DC_SERVO_0,
272 1 << w->shift, 0);
273 break;
274 }
275
276 return 0;
277}
278
279#define WM8903_DCS_MODE_WRITE_STOP 0
280#define WM8903_DCS_MODE_START_STOP 2
281
282static void wm8903_seq_notifier(struct snd_soc_dapm_context *dapm,
283 enum snd_soc_dapm_type event, int subseq)
284{
285 struct snd_soc_codec *codec = snd_soc_dapm_to_codec(dapm);
286 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
287 int dcs_mode = WM8903_DCS_MODE_WRITE_STOP;
288 int i, val;
289
290
291 if (wm8903->dcs_pending) {
292 dev_dbg(codec->dev, "Starting DC servo for %x\n",
293 wm8903->dcs_pending);
294
295
296 for (i = 0; i < ARRAY_SIZE(wm8903->dcs_cache); i++) {
297 if (!(wm8903->dcs_pending & (1 << i)))
298 continue;
299
300 if (wm8903->dcs_cache[i]) {
301 dev_dbg(codec->dev,
302 "Restore DC servo %d value %x\n",
303 3 - i, wm8903->dcs_cache[i]);
304
305 snd_soc_write(codec, WM8903_DC_SERVO_4 + i,
306 wm8903->dcs_cache[i] & 0xff);
307 } else {
308 dev_dbg(codec->dev,
309 "Calibrate DC servo %d\n", 3 - i);
310 dcs_mode = WM8903_DCS_MODE_START_STOP;
311 }
312 }
313
314
315 if (wm8903->class_w_users)
316 dcs_mode = WM8903_DCS_MODE_START_STOP;
317
318 snd_soc_update_bits(codec, WM8903_DC_SERVO_2,
319 WM8903_DCS_MODE_MASK, dcs_mode);
320
321 snd_soc_update_bits(codec, WM8903_DC_SERVO_0,
322 WM8903_DCS_ENA_MASK, wm8903->dcs_pending);
323
324 switch (dcs_mode) {
325 case WM8903_DCS_MODE_WRITE_STOP:
326 break;
327
328 case WM8903_DCS_MODE_START_STOP:
329 msleep(270);
330
331
332 if (wm8903->class_w_users)
333 break;
334
335 for (i = 0; i < ARRAY_SIZE(wm8903->dcs_cache); i++) {
336 if (!(wm8903->dcs_pending & (1 << i)))
337 continue;
338
339 val = snd_soc_read(codec,
340 WM8903_DC_SERVO_READBACK_1 + i);
341 dev_dbg(codec->dev, "DC servo %d: %x\n",
342 3 - i, val);
343 wm8903->dcs_cache[i] = val;
344 }
345 break;
346
347 default:
348 pr_warn("DCS mode %d delay not set\n", dcs_mode);
349 break;
350 }
351
352 wm8903->dcs_pending = 0;
353 }
354}
355
356
357
358
359
360
361
362
363
364static int wm8903_class_w_put(struct snd_kcontrol *kcontrol,
365 struct snd_ctl_elem_value *ucontrol)
366{
367 struct snd_soc_codec *codec = snd_soc_dapm_kcontrol_codec(kcontrol);
368 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
369 u16 reg;
370 int ret;
371
372 reg = snd_soc_read(codec, WM8903_CLASS_W_0);
373
374
375 if (ucontrol->value.integer.value[0]) {
376 if (wm8903->class_w_users == 0) {
377 dev_dbg(codec->dev, "Disabling Class W\n");
378 snd_soc_write(codec, WM8903_CLASS_W_0, reg &
379 ~(WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V));
380 }
381 wm8903->class_w_users++;
382 }
383
384
385 ret = snd_soc_dapm_put_volsw(kcontrol, ucontrol);
386
387
388 if (!ucontrol->value.integer.value[0]) {
389 if (wm8903->class_w_users == 1) {
390 dev_dbg(codec->dev, "Enabling Class W\n");
391 snd_soc_write(codec, WM8903_CLASS_W_0, reg |
392 WM8903_CP_DYN_FREQ | WM8903_CP_DYN_V);
393 }
394 wm8903->class_w_users--;
395 }
396
397 dev_dbg(codec->dev, "Bypass use count now %d\n",
398 wm8903->class_w_users);
399
400 return ret;
401}
402
403#define SOC_DAPM_SINGLE_W(xname, reg, shift, max, invert) \
404 SOC_SINGLE_EXT(xname, reg, shift, max, invert, \
405 snd_soc_dapm_get_volsw, wm8903_class_w_put)
406
407
408static int wm8903_deemph[] = { 0, 32000, 44100, 48000 };
409
410static int wm8903_set_deemph(struct snd_soc_codec *codec)
411{
412 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
413 int val, i, best;
414
415
416
417
418 if (wm8903->deemph) {
419 best = 1;
420 for (i = 2; i < ARRAY_SIZE(wm8903_deemph); i++) {
421 if (abs(wm8903_deemph[i] - wm8903->fs) <
422 abs(wm8903_deemph[best] - wm8903->fs))
423 best = i;
424 }
425
426 val = best << WM8903_DEEMPH_SHIFT;
427 } else {
428 best = 0;
429 val = 0;
430 }
431
432 dev_dbg(codec->dev, "Set deemphasis %d (%dHz)\n",
433 best, wm8903_deemph[best]);
434
435 return snd_soc_update_bits(codec, WM8903_DAC_DIGITAL_1,
436 WM8903_DEEMPH_MASK, val);
437}
438
439static int wm8903_get_deemph(struct snd_kcontrol *kcontrol,
440 struct snd_ctl_elem_value *ucontrol)
441{
442 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
443 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
444
445 ucontrol->value.integer.value[0] = wm8903->deemph;
446
447 return 0;
448}
449
450static int wm8903_put_deemph(struct snd_kcontrol *kcontrol,
451 struct snd_ctl_elem_value *ucontrol)
452{
453 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
454 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
455 unsigned int deemph = ucontrol->value.integer.value[0];
456 int ret = 0;
457
458 if (deemph > 1)
459 return -EINVAL;
460
461 mutex_lock(&wm8903->lock);
462 if (wm8903->deemph != deemph) {
463 wm8903->deemph = deemph;
464
465 wm8903_set_deemph(codec);
466
467 ret = 1;
468 }
469 mutex_unlock(&wm8903->lock);
470
471 return ret;
472}
473
474
475static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
476
477static const DECLARE_TLV_DB_SCALE(dac_boost_tlv, 0, 600, 0);
478
479static const DECLARE_TLV_DB_SCALE(digital_sidetone_tlv, -3600, 300, 0);
480static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
481
482static const DECLARE_TLV_DB_SCALE(drc_tlv_thresh, 0, 75, 0);
483static const DECLARE_TLV_DB_SCALE(drc_tlv_amp, -2250, 75, 0);
484static const DECLARE_TLV_DB_SCALE(drc_tlv_min, 0, 600, 0);
485static const DECLARE_TLV_DB_SCALE(drc_tlv_max, 1200, 600, 0);
486static const DECLARE_TLV_DB_SCALE(drc_tlv_startup, -300, 50, 0);
487
488static const char *hpf_mode_text[] = {
489 "Hi-fi", "Voice 1", "Voice 2", "Voice 3"
490};
491
492static SOC_ENUM_SINGLE_DECL(hpf_mode,
493 WM8903_ADC_DIGITAL_0, 5, hpf_mode_text);
494
495static const char *osr_text[] = {
496 "Low power", "High performance"
497};
498
499static SOC_ENUM_SINGLE_DECL(adc_osr,
500 WM8903_ANALOGUE_ADC_0, 0, osr_text);
501
502static SOC_ENUM_SINGLE_DECL(dac_osr,
503 WM8903_DAC_DIGITAL_1, 0, osr_text);
504
505static const char *drc_slope_text[] = {
506 "1", "1/2", "1/4", "1/8", "1/16", "0"
507};
508
509static SOC_ENUM_SINGLE_DECL(drc_slope_r0,
510 WM8903_DRC_2, 3, drc_slope_text);
511
512static SOC_ENUM_SINGLE_DECL(drc_slope_r1,
513 WM8903_DRC_2, 0, drc_slope_text);
514
515static const char *drc_attack_text[] = {
516 "instantaneous",
517 "363us", "762us", "1.45ms", "2.9ms", "5.8ms", "11.6ms", "23.2ms",
518 "46.4ms", "92.8ms", "185.6ms"
519};
520
521static SOC_ENUM_SINGLE_DECL(drc_attack,
522 WM8903_DRC_1, 12, drc_attack_text);
523
524static const char *drc_decay_text[] = {
525 "186ms", "372ms", "743ms", "1.49s", "2.97s", "5.94s", "11.89s",
526 "23.87s", "47.56s"
527};
528
529static SOC_ENUM_SINGLE_DECL(drc_decay,
530 WM8903_DRC_1, 8, drc_decay_text);
531
532static const char *drc_ff_delay_text[] = {
533 "5 samples", "9 samples"
534};
535
536static SOC_ENUM_SINGLE_DECL(drc_ff_delay,
537 WM8903_DRC_0, 5, drc_ff_delay_text);
538
539static const char *drc_qr_decay_text[] = {
540 "0.725ms", "1.45ms", "5.8ms"
541};
542
543static SOC_ENUM_SINGLE_DECL(drc_qr_decay,
544 WM8903_DRC_1, 4, drc_qr_decay_text);
545
546static const char *drc_smoothing_text[] = {
547 "Low", "Medium", "High"
548};
549
550static SOC_ENUM_SINGLE_DECL(drc_smoothing,
551 WM8903_DRC_0, 11, drc_smoothing_text);
552
553static const char *soft_mute_text[] = {
554 "Fast (fs/2)", "Slow (fs/32)"
555};
556
557static SOC_ENUM_SINGLE_DECL(soft_mute,
558 WM8903_DAC_DIGITAL_1, 10, soft_mute_text);
559
560static const char *mute_mode_text[] = {
561 "Hard", "Soft"
562};
563
564static SOC_ENUM_SINGLE_DECL(mute_mode,
565 WM8903_DAC_DIGITAL_1, 9, mute_mode_text);
566
567static const char *companding_text[] = {
568 "ulaw", "alaw"
569};
570
571static SOC_ENUM_SINGLE_DECL(dac_companding,
572 WM8903_AUDIO_INTERFACE_0, 0, companding_text);
573
574static SOC_ENUM_SINGLE_DECL(adc_companding,
575 WM8903_AUDIO_INTERFACE_0, 2, companding_text);
576
577static const char *input_mode_text[] = {
578 "Single-Ended", "Differential Line", "Differential Mic"
579};
580
581static SOC_ENUM_SINGLE_DECL(linput_mode_enum,
582 WM8903_ANALOGUE_LEFT_INPUT_1, 0, input_mode_text);
583
584static SOC_ENUM_SINGLE_DECL(rinput_mode_enum,
585 WM8903_ANALOGUE_RIGHT_INPUT_1, 0, input_mode_text);
586
587static const char *linput_mux_text[] = {
588 "IN1L", "IN2L", "IN3L"
589};
590
591static SOC_ENUM_SINGLE_DECL(linput_enum,
592 WM8903_ANALOGUE_LEFT_INPUT_1, 2, linput_mux_text);
593
594static SOC_ENUM_SINGLE_DECL(linput_inv_enum,
595 WM8903_ANALOGUE_LEFT_INPUT_1, 4, linput_mux_text);
596
597static const char *rinput_mux_text[] = {
598 "IN1R", "IN2R", "IN3R"
599};
600
601static SOC_ENUM_SINGLE_DECL(rinput_enum,
602 WM8903_ANALOGUE_RIGHT_INPUT_1, 2, rinput_mux_text);
603
604static SOC_ENUM_SINGLE_DECL(rinput_inv_enum,
605 WM8903_ANALOGUE_RIGHT_INPUT_1, 4, rinput_mux_text);
606
607
608static const char *sidetone_text[] = {
609 "None", "Left", "Right"
610};
611
612static SOC_ENUM_SINGLE_DECL(lsidetone_enum,
613 WM8903_DAC_DIGITAL_0, 2, sidetone_text);
614
615static SOC_ENUM_SINGLE_DECL(rsidetone_enum,
616 WM8903_DAC_DIGITAL_0, 0, sidetone_text);
617
618static const char *adcinput_text[] = {
619 "ADC", "DMIC"
620};
621
622static SOC_ENUM_SINGLE_DECL(adcinput_enum,
623 WM8903_CLOCK_RATE_TEST_4, 9, adcinput_text);
624
625static const char *aif_text[] = {
626 "Left", "Right"
627};
628
629static SOC_ENUM_SINGLE_DECL(lcapture_enum,
630 WM8903_AUDIO_INTERFACE_0, 7, aif_text);
631
632static SOC_ENUM_SINGLE_DECL(rcapture_enum,
633 WM8903_AUDIO_INTERFACE_0, 6, aif_text);
634
635static SOC_ENUM_SINGLE_DECL(lplay_enum,
636 WM8903_AUDIO_INTERFACE_0, 5, aif_text);
637
638static SOC_ENUM_SINGLE_DECL(rplay_enum,
639 WM8903_AUDIO_INTERFACE_0, 4, aif_text);
640
641static const struct snd_kcontrol_new wm8903_snd_controls[] = {
642
643
644SOC_SINGLE("Left Input PGA Switch", WM8903_ANALOGUE_LEFT_INPUT_0,
645 7, 1, 1),
646SOC_SINGLE("Left Input PGA Volume", WM8903_ANALOGUE_LEFT_INPUT_0,
647 0, 31, 0),
648SOC_SINGLE("Left Input PGA Common Mode Switch", WM8903_ANALOGUE_LEFT_INPUT_1,
649 6, 1, 0),
650
651SOC_SINGLE("Right Input PGA Switch", WM8903_ANALOGUE_RIGHT_INPUT_0,
652 7, 1, 1),
653SOC_SINGLE("Right Input PGA Volume", WM8903_ANALOGUE_RIGHT_INPUT_0,
654 0, 31, 0),
655SOC_SINGLE("Right Input PGA Common Mode Switch", WM8903_ANALOGUE_RIGHT_INPUT_1,
656 6, 1, 0),
657
658
659SOC_ENUM("ADC OSR", adc_osr),
660SOC_SINGLE("HPF Switch", WM8903_ADC_DIGITAL_0, 4, 1, 0),
661SOC_ENUM("HPF Mode", hpf_mode),
662SOC_SINGLE("DRC Switch", WM8903_DRC_0, 15, 1, 0),
663SOC_ENUM("DRC Compressor Slope R0", drc_slope_r0),
664SOC_ENUM("DRC Compressor Slope R1", drc_slope_r1),
665SOC_SINGLE_TLV("DRC Compressor Threshold Volume", WM8903_DRC_3, 5, 124, 1,
666 drc_tlv_thresh),
667SOC_SINGLE_TLV("DRC Volume", WM8903_DRC_3, 0, 30, 1, drc_tlv_amp),
668SOC_SINGLE_TLV("DRC Minimum Gain Volume", WM8903_DRC_1, 2, 3, 1, drc_tlv_min),
669SOC_SINGLE_TLV("DRC Maximum Gain Volume", WM8903_DRC_1, 0, 3, 0, drc_tlv_max),
670SOC_ENUM("DRC Attack Rate", drc_attack),
671SOC_ENUM("DRC Decay Rate", drc_decay),
672SOC_ENUM("DRC FF Delay", drc_ff_delay),
673SOC_SINGLE("DRC Anticlip Switch", WM8903_DRC_0, 1, 1, 0),
674SOC_SINGLE("DRC QR Switch", WM8903_DRC_0, 2, 1, 0),
675SOC_SINGLE_TLV("DRC QR Threshold Volume", WM8903_DRC_0, 6, 3, 0, drc_tlv_max),
676SOC_ENUM("DRC QR Decay Rate", drc_qr_decay),
677SOC_SINGLE("DRC Smoothing Switch", WM8903_DRC_0, 3, 1, 0),
678SOC_SINGLE("DRC Smoothing Hysteresis Switch", WM8903_DRC_0, 0, 1, 0),
679SOC_ENUM("DRC Smoothing Threshold", drc_smoothing),
680SOC_SINGLE_TLV("DRC Startup Volume", WM8903_DRC_0, 6, 18, 0, drc_tlv_startup),
681
682SOC_DOUBLE_R_TLV("Digital Capture Volume", WM8903_ADC_DIGITAL_VOLUME_LEFT,
683 WM8903_ADC_DIGITAL_VOLUME_RIGHT, 1, 120, 0, digital_tlv),
684SOC_ENUM("ADC Companding Mode", adc_companding),
685SOC_SINGLE("ADC Companding Switch", WM8903_AUDIO_INTERFACE_0, 3, 1, 0),
686
687SOC_DOUBLE_TLV("Digital Sidetone Volume", WM8903_DAC_DIGITAL_0, 4, 8,
688 12, 0, digital_sidetone_tlv),
689
690
691SOC_ENUM("DAC OSR", dac_osr),
692SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8903_DAC_DIGITAL_VOLUME_LEFT,
693 WM8903_DAC_DIGITAL_VOLUME_RIGHT, 1, 120, 0, digital_tlv),
694SOC_ENUM("DAC Soft Mute Rate", soft_mute),
695SOC_ENUM("DAC Mute Mode", mute_mode),
696SOC_SINGLE("DAC Mono Switch", WM8903_DAC_DIGITAL_1, 12, 1, 0),
697SOC_ENUM("DAC Companding Mode", dac_companding),
698SOC_SINGLE("DAC Companding Switch", WM8903_AUDIO_INTERFACE_0, 1, 1, 0),
699SOC_SINGLE_TLV("DAC Boost Volume", WM8903_AUDIO_INTERFACE_0, 9, 3, 0,
700 dac_boost_tlv),
701SOC_SINGLE_BOOL_EXT("Playback Deemphasis Switch", 0,
702 wm8903_get_deemph, wm8903_put_deemph),
703
704
705SOC_DOUBLE_R("Headphone Switch",
706 WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
707 8, 1, 1),
708SOC_DOUBLE_R("Headphone ZC Switch",
709 WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
710 6, 1, 0),
711SOC_DOUBLE_R_TLV("Headphone Volume",
712 WM8903_ANALOGUE_OUT1_LEFT, WM8903_ANALOGUE_OUT1_RIGHT,
713 0, 63, 0, out_tlv),
714
715
716SOC_DOUBLE_R("Line Out Switch",
717 WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
718 8, 1, 1),
719SOC_DOUBLE_R("Line Out ZC Switch",
720 WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
721 6, 1, 0),
722SOC_DOUBLE_R_TLV("Line Out Volume",
723 WM8903_ANALOGUE_OUT2_LEFT, WM8903_ANALOGUE_OUT2_RIGHT,
724 0, 63, 0, out_tlv),
725
726
727SOC_DOUBLE_R("Speaker Switch",
728 WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT, 8, 1, 1),
729SOC_DOUBLE_R("Speaker ZC Switch",
730 WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT, 6, 1, 0),
731SOC_DOUBLE_R_TLV("Speaker Volume",
732 WM8903_ANALOGUE_OUT3_LEFT, WM8903_ANALOGUE_OUT3_RIGHT,
733 0, 63, 0, out_tlv),
734};
735
736static const struct snd_kcontrol_new linput_mode_mux =
737 SOC_DAPM_ENUM("Left Input Mode Mux", linput_mode_enum);
738
739static const struct snd_kcontrol_new rinput_mode_mux =
740 SOC_DAPM_ENUM("Right Input Mode Mux", rinput_mode_enum);
741
742static const struct snd_kcontrol_new linput_mux =
743 SOC_DAPM_ENUM("Left Input Mux", linput_enum);
744
745static const struct snd_kcontrol_new linput_inv_mux =
746 SOC_DAPM_ENUM("Left Inverting Input Mux", linput_inv_enum);
747
748static const struct snd_kcontrol_new rinput_mux =
749 SOC_DAPM_ENUM("Right Input Mux", rinput_enum);
750
751static const struct snd_kcontrol_new rinput_inv_mux =
752 SOC_DAPM_ENUM("Right Inverting Input Mux", rinput_inv_enum);
753
754static const struct snd_kcontrol_new lsidetone_mux =
755 SOC_DAPM_ENUM("DACL Sidetone Mux", lsidetone_enum);
756
757static const struct snd_kcontrol_new rsidetone_mux =
758 SOC_DAPM_ENUM("DACR Sidetone Mux", rsidetone_enum);
759
760static const struct snd_kcontrol_new adcinput_mux =
761 SOC_DAPM_ENUM("ADC Input", adcinput_enum);
762
763static const struct snd_kcontrol_new lcapture_mux =
764 SOC_DAPM_ENUM("Left Capture Mux", lcapture_enum);
765
766static const struct snd_kcontrol_new rcapture_mux =
767 SOC_DAPM_ENUM("Right Capture Mux", rcapture_enum);
768
769static const struct snd_kcontrol_new lplay_mux =
770 SOC_DAPM_ENUM("Left Playback Mux", lplay_enum);
771
772static const struct snd_kcontrol_new rplay_mux =
773 SOC_DAPM_ENUM("Right Playback Mux", rplay_enum);
774
775static const struct snd_kcontrol_new left_output_mixer[] = {
776SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_LEFT_MIX_0, 3, 1, 0),
777SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_LEFT_MIX_0, 2, 1, 0),
778SOC_DAPM_SINGLE_W("Left Bypass Switch", WM8903_ANALOGUE_LEFT_MIX_0, 1, 1, 0),
779SOC_DAPM_SINGLE_W("Right Bypass Switch", WM8903_ANALOGUE_LEFT_MIX_0, 0, 1, 0),
780};
781
782static const struct snd_kcontrol_new right_output_mixer[] = {
783SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 3, 1, 0),
784SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 2, 1, 0),
785SOC_DAPM_SINGLE_W("Left Bypass Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 1, 1, 0),
786SOC_DAPM_SINGLE_W("Right Bypass Switch", WM8903_ANALOGUE_RIGHT_MIX_0, 0, 1, 0),
787};
788
789static const struct snd_kcontrol_new left_speaker_mixer[] = {
790SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 3, 1, 0),
791SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 2, 1, 0),
792SOC_DAPM_SINGLE("Left Bypass Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0, 1, 1, 0),
793SOC_DAPM_SINGLE("Right Bypass Switch", WM8903_ANALOGUE_SPK_MIX_LEFT_0,
794 0, 1, 0),
795};
796
797static const struct snd_kcontrol_new right_speaker_mixer[] = {
798SOC_DAPM_SINGLE("DACL Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0, 3, 1, 0),
799SOC_DAPM_SINGLE("DACR Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0, 2, 1, 0),
800SOC_DAPM_SINGLE("Left Bypass Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0,
801 1, 1, 0),
802SOC_DAPM_SINGLE("Right Bypass Switch", WM8903_ANALOGUE_SPK_MIX_RIGHT_0,
803 0, 1, 0),
804};
805
806static const struct snd_soc_dapm_widget wm8903_dapm_widgets[] = {
807SND_SOC_DAPM_INPUT("IN1L"),
808SND_SOC_DAPM_INPUT("IN1R"),
809SND_SOC_DAPM_INPUT("IN2L"),
810SND_SOC_DAPM_INPUT("IN2R"),
811SND_SOC_DAPM_INPUT("IN3L"),
812SND_SOC_DAPM_INPUT("IN3R"),
813SND_SOC_DAPM_INPUT("DMICDAT"),
814
815SND_SOC_DAPM_OUTPUT("HPOUTL"),
816SND_SOC_DAPM_OUTPUT("HPOUTR"),
817SND_SOC_DAPM_OUTPUT("LINEOUTL"),
818SND_SOC_DAPM_OUTPUT("LINEOUTR"),
819SND_SOC_DAPM_OUTPUT("LOP"),
820SND_SOC_DAPM_OUTPUT("LON"),
821SND_SOC_DAPM_OUTPUT("ROP"),
822SND_SOC_DAPM_OUTPUT("RON"),
823
824SND_SOC_DAPM_SUPPLY("MICBIAS", WM8903_MIC_BIAS_CONTROL_0, 0, 0, NULL, 0),
825
826SND_SOC_DAPM_MUX("Left Input Mux", SND_SOC_NOPM, 0, 0, &linput_mux),
827SND_SOC_DAPM_MUX("Left Input Inverting Mux", SND_SOC_NOPM, 0, 0,
828 &linput_inv_mux),
829SND_SOC_DAPM_MUX("Left Input Mode Mux", SND_SOC_NOPM, 0, 0, &linput_mode_mux),
830
831SND_SOC_DAPM_MUX("Right Input Mux", SND_SOC_NOPM, 0, 0, &rinput_mux),
832SND_SOC_DAPM_MUX("Right Input Inverting Mux", SND_SOC_NOPM, 0, 0,
833 &rinput_inv_mux),
834SND_SOC_DAPM_MUX("Right Input Mode Mux", SND_SOC_NOPM, 0, 0, &rinput_mode_mux),
835
836SND_SOC_DAPM_PGA("Left Input PGA", WM8903_POWER_MANAGEMENT_0, 1, 0, NULL, 0),
837SND_SOC_DAPM_PGA("Right Input PGA", WM8903_POWER_MANAGEMENT_0, 0, 0, NULL, 0),
838
839SND_SOC_DAPM_MUX("Left ADC Input", SND_SOC_NOPM, 0, 0, &adcinput_mux),
840SND_SOC_DAPM_MUX("Right ADC Input", SND_SOC_NOPM, 0, 0, &adcinput_mux),
841
842SND_SOC_DAPM_ADC("ADCL", NULL, WM8903_POWER_MANAGEMENT_6, 1, 0),
843SND_SOC_DAPM_ADC("ADCR", NULL, WM8903_POWER_MANAGEMENT_6, 0, 0),
844
845SND_SOC_DAPM_MUX("Left Capture Mux", SND_SOC_NOPM, 0, 0, &lcapture_mux),
846SND_SOC_DAPM_MUX("Right Capture Mux", SND_SOC_NOPM, 0, 0, &rcapture_mux),
847
848SND_SOC_DAPM_AIF_OUT("AIFTXL", "Left HiFi Capture", 0, SND_SOC_NOPM, 0, 0),
849SND_SOC_DAPM_AIF_OUT("AIFTXR", "Right HiFi Capture", 0, SND_SOC_NOPM, 0, 0),
850
851SND_SOC_DAPM_MUX("DACL Sidetone", SND_SOC_NOPM, 0, 0, &lsidetone_mux),
852SND_SOC_DAPM_MUX("DACR Sidetone", SND_SOC_NOPM, 0, 0, &rsidetone_mux),
853
854SND_SOC_DAPM_AIF_IN("AIFRXL", "Left Playback", 0, SND_SOC_NOPM, 0, 0),
855SND_SOC_DAPM_AIF_IN("AIFRXR", "Right Playback", 0, SND_SOC_NOPM, 0, 0),
856
857SND_SOC_DAPM_MUX("Left Playback Mux", SND_SOC_NOPM, 0, 0, &lplay_mux),
858SND_SOC_DAPM_MUX("Right Playback Mux", SND_SOC_NOPM, 0, 0, &rplay_mux),
859
860SND_SOC_DAPM_DAC("DACL", NULL, WM8903_POWER_MANAGEMENT_6, 3, 0),
861SND_SOC_DAPM_DAC("DACR", NULL, WM8903_POWER_MANAGEMENT_6, 2, 0),
862
863SND_SOC_DAPM_MIXER("Left Output Mixer", WM8903_POWER_MANAGEMENT_1, 1, 0,
864 left_output_mixer, ARRAY_SIZE(left_output_mixer)),
865SND_SOC_DAPM_MIXER("Right Output Mixer", WM8903_POWER_MANAGEMENT_1, 0, 0,
866 right_output_mixer, ARRAY_SIZE(right_output_mixer)),
867
868SND_SOC_DAPM_MIXER("Left Speaker Mixer", WM8903_POWER_MANAGEMENT_4, 1, 0,
869 left_speaker_mixer, ARRAY_SIZE(left_speaker_mixer)),
870SND_SOC_DAPM_MIXER("Right Speaker Mixer", WM8903_POWER_MANAGEMENT_4, 0, 0,
871 right_speaker_mixer, ARRAY_SIZE(right_speaker_mixer)),
872
873SND_SOC_DAPM_PGA_S("Left Headphone Output PGA", 0, WM8903_POWER_MANAGEMENT_2,
874 1, 0, NULL, 0),
875SND_SOC_DAPM_PGA_S("Right Headphone Output PGA", 0, WM8903_POWER_MANAGEMENT_2,
876 0, 0, NULL, 0),
877
878SND_SOC_DAPM_PGA_S("Left Line Output PGA", 0, WM8903_POWER_MANAGEMENT_3, 1, 0,
879 NULL, 0),
880SND_SOC_DAPM_PGA_S("Right Line Output PGA", 0, WM8903_POWER_MANAGEMENT_3, 0, 0,
881 NULL, 0),
882
883SND_SOC_DAPM_PGA_S("HPL_RMV_SHORT", 4, WM8903_ANALOGUE_HP_0, 7, 0, NULL, 0),
884SND_SOC_DAPM_PGA_S("HPL_ENA_OUTP", 3, WM8903_ANALOGUE_HP_0, 6, 0, NULL, 0),
885SND_SOC_DAPM_PGA_S("HPL_ENA_DLY", 2, WM8903_ANALOGUE_HP_0, 5, 0, NULL, 0),
886SND_SOC_DAPM_PGA_S("HPL_ENA", 1, WM8903_ANALOGUE_HP_0, 4, 0, NULL, 0),
887SND_SOC_DAPM_PGA_S("HPR_RMV_SHORT", 4, WM8903_ANALOGUE_HP_0, 3, 0, NULL, 0),
888SND_SOC_DAPM_PGA_S("HPR_ENA_OUTP", 3, WM8903_ANALOGUE_HP_0, 2, 0, NULL, 0),
889SND_SOC_DAPM_PGA_S("HPR_ENA_DLY", 2, WM8903_ANALOGUE_HP_0, 1, 0, NULL, 0),
890SND_SOC_DAPM_PGA_S("HPR_ENA", 1, WM8903_ANALOGUE_HP_0, 0, 0, NULL, 0),
891
892SND_SOC_DAPM_PGA_S("LINEOUTL_RMV_SHORT", 4, WM8903_ANALOGUE_LINEOUT_0, 7, 0,
893 NULL, 0),
894SND_SOC_DAPM_PGA_S("LINEOUTL_ENA_OUTP", 3, WM8903_ANALOGUE_LINEOUT_0, 6, 0,
895 NULL, 0),
896SND_SOC_DAPM_PGA_S("LINEOUTL_ENA_DLY", 2, WM8903_ANALOGUE_LINEOUT_0, 5, 0,
897 NULL, 0),
898SND_SOC_DAPM_PGA_S("LINEOUTL_ENA", 1, WM8903_ANALOGUE_LINEOUT_0, 4, 0,
899 NULL, 0),
900SND_SOC_DAPM_PGA_S("LINEOUTR_RMV_SHORT", 4, WM8903_ANALOGUE_LINEOUT_0, 3, 0,
901 NULL, 0),
902SND_SOC_DAPM_PGA_S("LINEOUTR_ENA_OUTP", 3, WM8903_ANALOGUE_LINEOUT_0, 2, 0,
903 NULL, 0),
904SND_SOC_DAPM_PGA_S("LINEOUTR_ENA_DLY", 2, WM8903_ANALOGUE_LINEOUT_0, 1, 0,
905 NULL, 0),
906SND_SOC_DAPM_PGA_S("LINEOUTR_ENA", 1, WM8903_ANALOGUE_LINEOUT_0, 0, 0,
907 NULL, 0),
908
909SND_SOC_DAPM_SUPPLY("DCS Master", WM8903_DC_SERVO_0, 4, 0, NULL, 0),
910SND_SOC_DAPM_PGA_S("HPL_DCS", 3, SND_SOC_NOPM, 3, 0, wm8903_dcs_event,
911 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
912SND_SOC_DAPM_PGA_S("HPR_DCS", 3, SND_SOC_NOPM, 2, 0, wm8903_dcs_event,
913 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
914SND_SOC_DAPM_PGA_S("LINEOUTL_DCS", 3, SND_SOC_NOPM, 1, 0, wm8903_dcs_event,
915 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
916SND_SOC_DAPM_PGA_S("LINEOUTR_DCS", 3, SND_SOC_NOPM, 0, 0, wm8903_dcs_event,
917 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
918
919SND_SOC_DAPM_PGA("Left Speaker PGA", WM8903_POWER_MANAGEMENT_5, 1, 0,
920 NULL, 0),
921SND_SOC_DAPM_PGA("Right Speaker PGA", WM8903_POWER_MANAGEMENT_5, 0, 0,
922 NULL, 0),
923
924SND_SOC_DAPM_SUPPLY("Charge Pump", WM8903_CHARGE_PUMP_0, 0, 0,
925 wm8903_cp_event, SND_SOC_DAPM_POST_PMU),
926SND_SOC_DAPM_SUPPLY("CLK_DSP", WM8903_CLOCK_RATES_2, 1, 0, NULL, 0),
927SND_SOC_DAPM_SUPPLY("CLK_SYS", WM8903_CLOCK_RATES_2, 2, 0, NULL, 0),
928};
929
930static const struct snd_soc_dapm_route wm8903_intercon[] = {
931
932 { "CLK_DSP", NULL, "CLK_SYS" },
933 { "MICBIAS", NULL, "CLK_SYS" },
934 { "HPL_DCS", NULL, "CLK_SYS" },
935 { "HPR_DCS", NULL, "CLK_SYS" },
936 { "LINEOUTL_DCS", NULL, "CLK_SYS" },
937 { "LINEOUTR_DCS", NULL, "CLK_SYS" },
938
939 { "Left Input Mux", "IN1L", "IN1L" },
940 { "Left Input Mux", "IN2L", "IN2L" },
941 { "Left Input Mux", "IN3L", "IN3L" },
942
943 { "Left Input Inverting Mux", "IN1L", "IN1L" },
944 { "Left Input Inverting Mux", "IN2L", "IN2L" },
945 { "Left Input Inverting Mux", "IN3L", "IN3L" },
946
947 { "Right Input Mux", "IN1R", "IN1R" },
948 { "Right Input Mux", "IN2R", "IN2R" },
949 { "Right Input Mux", "IN3R", "IN3R" },
950
951 { "Right Input Inverting Mux", "IN1R", "IN1R" },
952 { "Right Input Inverting Mux", "IN2R", "IN2R" },
953 { "Right Input Inverting Mux", "IN3R", "IN3R" },
954
955 { "Left Input Mode Mux", "Single-Ended", "Left Input Inverting Mux" },
956 { "Left Input Mode Mux", "Differential Line",
957 "Left Input Mux" },
958 { "Left Input Mode Mux", "Differential Line",
959 "Left Input Inverting Mux" },
960 { "Left Input Mode Mux", "Differential Mic",
961 "Left Input Mux" },
962 { "Left Input Mode Mux", "Differential Mic",
963 "Left Input Inverting Mux" },
964
965 { "Right Input Mode Mux", "Single-Ended",
966 "Right Input Inverting Mux" },
967 { "Right Input Mode Mux", "Differential Line",
968 "Right Input Mux" },
969 { "Right Input Mode Mux", "Differential Line",
970 "Right Input Inverting Mux" },
971 { "Right Input Mode Mux", "Differential Mic",
972 "Right Input Mux" },
973 { "Right Input Mode Mux", "Differential Mic",
974 "Right Input Inverting Mux" },
975
976 { "Left Input PGA", NULL, "Left Input Mode Mux" },
977 { "Right Input PGA", NULL, "Right Input Mode Mux" },
978
979 { "Left ADC Input", "ADC", "Left Input PGA" },
980 { "Left ADC Input", "DMIC", "DMICDAT" },
981 { "Right ADC Input", "ADC", "Right Input PGA" },
982 { "Right ADC Input", "DMIC", "DMICDAT" },
983
984 { "Left Capture Mux", "Left", "ADCL" },
985 { "Left Capture Mux", "Right", "ADCR" },
986
987 { "Right Capture Mux", "Left", "ADCL" },
988 { "Right Capture Mux", "Right", "ADCR" },
989
990 { "AIFTXL", NULL, "Left Capture Mux" },
991 { "AIFTXR", NULL, "Right Capture Mux" },
992
993 { "ADCL", NULL, "Left ADC Input" },
994 { "ADCL", NULL, "CLK_DSP" },
995 { "ADCR", NULL, "Right ADC Input" },
996 { "ADCR", NULL, "CLK_DSP" },
997
998 { "Left Playback Mux", "Left", "AIFRXL" },
999 { "Left Playback Mux", "Right", "AIFRXR" },
1000
1001 { "Right Playback Mux", "Left", "AIFRXL" },
1002 { "Right Playback Mux", "Right", "AIFRXR" },
1003
1004 { "DACL Sidetone", "Left", "ADCL" },
1005 { "DACL Sidetone", "Right", "ADCR" },
1006 { "DACR Sidetone", "Left", "ADCL" },
1007 { "DACR Sidetone", "Right", "ADCR" },
1008
1009 { "DACL", NULL, "Left Playback Mux" },
1010 { "DACL", NULL, "DACL Sidetone" },
1011 { "DACL", NULL, "CLK_DSP" },
1012
1013 { "DACR", NULL, "Right Playback Mux" },
1014 { "DACR", NULL, "DACR Sidetone" },
1015 { "DACR", NULL, "CLK_DSP" },
1016
1017 { "Left Output Mixer", "Left Bypass Switch", "Left Input PGA" },
1018 { "Left Output Mixer", "Right Bypass Switch", "Right Input PGA" },
1019 { "Left Output Mixer", "DACL Switch", "DACL" },
1020 { "Left Output Mixer", "DACR Switch", "DACR" },
1021
1022 { "Right Output Mixer", "Left Bypass Switch", "Left Input PGA" },
1023 { "Right Output Mixer", "Right Bypass Switch", "Right Input PGA" },
1024 { "Right Output Mixer", "DACL Switch", "DACL" },
1025 { "Right Output Mixer", "DACR Switch", "DACR" },
1026
1027 { "Left Speaker Mixer", "Left Bypass Switch", "Left Input PGA" },
1028 { "Left Speaker Mixer", "Right Bypass Switch", "Right Input PGA" },
1029 { "Left Speaker Mixer", "DACL Switch", "DACL" },
1030 { "Left Speaker Mixer", "DACR Switch", "DACR" },
1031
1032 { "Right Speaker Mixer", "Left Bypass Switch", "Left Input PGA" },
1033 { "Right Speaker Mixer", "Right Bypass Switch", "Right Input PGA" },
1034 { "Right Speaker Mixer", "DACL Switch", "DACL" },
1035 { "Right Speaker Mixer", "DACR Switch", "DACR" },
1036
1037 { "Left Line Output PGA", NULL, "Left Output Mixer" },
1038 { "Right Line Output PGA", NULL, "Right Output Mixer" },
1039
1040 { "Left Headphone Output PGA", NULL, "Left Output Mixer" },
1041 { "Right Headphone Output PGA", NULL, "Right Output Mixer" },
1042
1043 { "Left Speaker PGA", NULL, "Left Speaker Mixer" },
1044 { "Right Speaker PGA", NULL, "Right Speaker Mixer" },
1045
1046 { "HPL_ENA", NULL, "Left Headphone Output PGA" },
1047 { "HPR_ENA", NULL, "Right Headphone Output PGA" },
1048 { "HPL_ENA_DLY", NULL, "HPL_ENA" },
1049 { "HPR_ENA_DLY", NULL, "HPR_ENA" },
1050 { "LINEOUTL_ENA", NULL, "Left Line Output PGA" },
1051 { "LINEOUTR_ENA", NULL, "Right Line Output PGA" },
1052 { "LINEOUTL_ENA_DLY", NULL, "LINEOUTL_ENA" },
1053 { "LINEOUTR_ENA_DLY", NULL, "LINEOUTR_ENA" },
1054
1055 { "HPL_DCS", NULL, "DCS Master" },
1056 { "HPR_DCS", NULL, "DCS Master" },
1057 { "LINEOUTL_DCS", NULL, "DCS Master" },
1058 { "LINEOUTR_DCS", NULL, "DCS Master" },
1059
1060 { "HPL_DCS", NULL, "HPL_ENA_DLY" },
1061 { "HPR_DCS", NULL, "HPR_ENA_DLY" },
1062 { "LINEOUTL_DCS", NULL, "LINEOUTL_ENA_DLY" },
1063 { "LINEOUTR_DCS", NULL, "LINEOUTR_ENA_DLY" },
1064
1065 { "HPL_ENA_OUTP", NULL, "HPL_DCS" },
1066 { "HPR_ENA_OUTP", NULL, "HPR_DCS" },
1067 { "LINEOUTL_ENA_OUTP", NULL, "LINEOUTL_DCS" },
1068 { "LINEOUTR_ENA_OUTP", NULL, "LINEOUTR_DCS" },
1069
1070 { "HPL_RMV_SHORT", NULL, "HPL_ENA_OUTP" },
1071 { "HPR_RMV_SHORT", NULL, "HPR_ENA_OUTP" },
1072 { "LINEOUTL_RMV_SHORT", NULL, "LINEOUTL_ENA_OUTP" },
1073 { "LINEOUTR_RMV_SHORT", NULL, "LINEOUTR_ENA_OUTP" },
1074
1075 { "HPOUTL", NULL, "HPL_RMV_SHORT" },
1076 { "HPOUTR", NULL, "HPR_RMV_SHORT" },
1077 { "LINEOUTL", NULL, "LINEOUTL_RMV_SHORT" },
1078 { "LINEOUTR", NULL, "LINEOUTR_RMV_SHORT" },
1079
1080 { "LOP", NULL, "Left Speaker PGA" },
1081 { "LON", NULL, "Left Speaker PGA" },
1082
1083 { "ROP", NULL, "Right Speaker PGA" },
1084 { "RON", NULL, "Right Speaker PGA" },
1085
1086 { "Charge Pump", NULL, "CLK_DSP" },
1087
1088 { "Left Headphone Output PGA", NULL, "Charge Pump" },
1089 { "Right Headphone Output PGA", NULL, "Charge Pump" },
1090 { "Left Line Output PGA", NULL, "Charge Pump" },
1091 { "Right Line Output PGA", NULL, "Charge Pump" },
1092};
1093
1094static int wm8903_set_bias_level(struct snd_soc_codec *codec,
1095 enum snd_soc_bias_level level)
1096{
1097 switch (level) {
1098 case SND_SOC_BIAS_ON:
1099 break;
1100
1101 case SND_SOC_BIAS_PREPARE:
1102 snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
1103 WM8903_VMID_RES_MASK,
1104 WM8903_VMID_RES_50K);
1105 break;
1106
1107 case SND_SOC_BIAS_STANDBY:
1108 if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
1109 snd_soc_update_bits(codec, WM8903_BIAS_CONTROL_0,
1110 WM8903_POBCTRL | WM8903_ISEL_MASK |
1111 WM8903_STARTUP_BIAS_ENA |
1112 WM8903_BIAS_ENA,
1113 WM8903_POBCTRL |
1114 (2 << WM8903_ISEL_SHIFT) |
1115 WM8903_STARTUP_BIAS_ENA);
1116
1117 snd_soc_update_bits(codec,
1118 WM8903_ANALOGUE_SPK_OUTPUT_CONTROL_0,
1119 WM8903_SPK_DISCHARGE,
1120 WM8903_SPK_DISCHARGE);
1121
1122 msleep(33);
1123
1124 snd_soc_update_bits(codec, WM8903_POWER_MANAGEMENT_5,
1125 WM8903_SPKL_ENA | WM8903_SPKR_ENA,
1126 WM8903_SPKL_ENA | WM8903_SPKR_ENA);
1127
1128 snd_soc_update_bits(codec,
1129 WM8903_ANALOGUE_SPK_OUTPUT_CONTROL_0,
1130 WM8903_SPK_DISCHARGE, 0);
1131
1132 snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
1133 WM8903_VMID_TIE_ENA |
1134 WM8903_BUFIO_ENA |
1135 WM8903_VMID_IO_ENA |
1136 WM8903_VMID_SOFT_MASK |
1137 WM8903_VMID_RES_MASK |
1138 WM8903_VMID_BUF_ENA,
1139 WM8903_VMID_TIE_ENA |
1140 WM8903_BUFIO_ENA |
1141 WM8903_VMID_IO_ENA |
1142 (2 << WM8903_VMID_SOFT_SHIFT) |
1143 WM8903_VMID_RES_250K |
1144 WM8903_VMID_BUF_ENA);
1145
1146 msleep(129);
1147
1148 snd_soc_update_bits(codec, WM8903_POWER_MANAGEMENT_5,
1149 WM8903_SPKL_ENA | WM8903_SPKR_ENA,
1150 0);
1151
1152 snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
1153 WM8903_VMID_SOFT_MASK, 0);
1154
1155 snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
1156 WM8903_VMID_RES_MASK,
1157 WM8903_VMID_RES_50K);
1158
1159 snd_soc_update_bits(codec, WM8903_BIAS_CONTROL_0,
1160 WM8903_BIAS_ENA | WM8903_POBCTRL,
1161 WM8903_BIAS_ENA);
1162
1163
1164
1165
1166 dev_dbg(codec->dev, "Enabling Class W\n");
1167 snd_soc_update_bits(codec, WM8903_CLASS_W_0,
1168 WM8903_CP_DYN_FREQ |
1169 WM8903_CP_DYN_V,
1170 WM8903_CP_DYN_FREQ |
1171 WM8903_CP_DYN_V);
1172 }
1173
1174 snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
1175 WM8903_VMID_RES_MASK,
1176 WM8903_VMID_RES_250K);
1177 break;
1178
1179 case SND_SOC_BIAS_OFF:
1180 snd_soc_update_bits(codec, WM8903_BIAS_CONTROL_0,
1181 WM8903_BIAS_ENA, 0);
1182
1183 snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
1184 WM8903_VMID_SOFT_MASK,
1185 2 << WM8903_VMID_SOFT_SHIFT);
1186
1187 snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
1188 WM8903_VMID_BUF_ENA, 0);
1189
1190 msleep(290);
1191
1192 snd_soc_update_bits(codec, WM8903_VMID_CONTROL_0,
1193 WM8903_VMID_TIE_ENA | WM8903_BUFIO_ENA |
1194 WM8903_VMID_IO_ENA | WM8903_VMID_RES_MASK |
1195 WM8903_VMID_SOFT_MASK |
1196 WM8903_VMID_BUF_ENA, 0);
1197
1198 snd_soc_update_bits(codec, WM8903_BIAS_CONTROL_0,
1199 WM8903_STARTUP_BIAS_ENA, 0);
1200 break;
1201 }
1202
1203 return 0;
1204}
1205
1206static int wm8903_set_dai_sysclk(struct snd_soc_dai *codec_dai,
1207 int clk_id, unsigned int freq, int dir)
1208{
1209 struct snd_soc_codec *codec = codec_dai->codec;
1210 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1211
1212 wm8903->sysclk = freq;
1213
1214 return 0;
1215}
1216
1217static int wm8903_set_dai_fmt(struct snd_soc_dai *codec_dai,
1218 unsigned int fmt)
1219{
1220 struct snd_soc_codec *codec = codec_dai->codec;
1221 u16 aif1 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_1);
1222
1223 aif1 &= ~(WM8903_LRCLK_DIR | WM8903_BCLK_DIR | WM8903_AIF_FMT_MASK |
1224 WM8903_AIF_LRCLK_INV | WM8903_AIF_BCLK_INV);
1225
1226 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1227 case SND_SOC_DAIFMT_CBS_CFS:
1228 break;
1229 case SND_SOC_DAIFMT_CBS_CFM:
1230 aif1 |= WM8903_LRCLK_DIR;
1231 break;
1232 case SND_SOC_DAIFMT_CBM_CFM:
1233 aif1 |= WM8903_LRCLK_DIR | WM8903_BCLK_DIR;
1234 break;
1235 case SND_SOC_DAIFMT_CBM_CFS:
1236 aif1 |= WM8903_BCLK_DIR;
1237 break;
1238 default:
1239 return -EINVAL;
1240 }
1241
1242 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1243 case SND_SOC_DAIFMT_DSP_A:
1244 aif1 |= 0x3;
1245 break;
1246 case SND_SOC_DAIFMT_DSP_B:
1247 aif1 |= 0x3 | WM8903_AIF_LRCLK_INV;
1248 break;
1249 case SND_SOC_DAIFMT_I2S:
1250 aif1 |= 0x2;
1251 break;
1252 case SND_SOC_DAIFMT_RIGHT_J:
1253 aif1 |= 0x1;
1254 break;
1255 case SND_SOC_DAIFMT_LEFT_J:
1256 break;
1257 default:
1258 return -EINVAL;
1259 }
1260
1261
1262 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1263 case SND_SOC_DAIFMT_DSP_A:
1264 case SND_SOC_DAIFMT_DSP_B:
1265
1266 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1267 case SND_SOC_DAIFMT_NB_NF:
1268 break;
1269 case SND_SOC_DAIFMT_IB_NF:
1270 aif1 |= WM8903_AIF_BCLK_INV;
1271 break;
1272 default:
1273 return -EINVAL;
1274 }
1275 break;
1276 case SND_SOC_DAIFMT_I2S:
1277 case SND_SOC_DAIFMT_RIGHT_J:
1278 case SND_SOC_DAIFMT_LEFT_J:
1279 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1280 case SND_SOC_DAIFMT_NB_NF:
1281 break;
1282 case SND_SOC_DAIFMT_IB_IF:
1283 aif1 |= WM8903_AIF_BCLK_INV | WM8903_AIF_LRCLK_INV;
1284 break;
1285 case SND_SOC_DAIFMT_IB_NF:
1286 aif1 |= WM8903_AIF_BCLK_INV;
1287 break;
1288 case SND_SOC_DAIFMT_NB_IF:
1289 aif1 |= WM8903_AIF_LRCLK_INV;
1290 break;
1291 default:
1292 return -EINVAL;
1293 }
1294 break;
1295 default:
1296 return -EINVAL;
1297 }
1298
1299 snd_soc_write(codec, WM8903_AUDIO_INTERFACE_1, aif1);
1300
1301 return 0;
1302}
1303
1304static int wm8903_digital_mute(struct snd_soc_dai *codec_dai, int mute)
1305{
1306 struct snd_soc_codec *codec = codec_dai->codec;
1307 u16 reg;
1308
1309 reg = snd_soc_read(codec, WM8903_DAC_DIGITAL_1);
1310
1311 if (mute)
1312 reg |= WM8903_DAC_MUTE;
1313 else
1314 reg &= ~WM8903_DAC_MUTE;
1315
1316 snd_soc_write(codec, WM8903_DAC_DIGITAL_1, reg);
1317
1318 return 0;
1319}
1320
1321
1322
1323
1324static struct {
1325 int div;
1326 int rate;
1327 int mode;
1328 int mclk_div;
1329} clk_sys_ratios[] = {
1330 { 64, 0x0, 0x0, 1 },
1331 { 68, 0x0, 0x1, 1 },
1332 { 125, 0x0, 0x2, 1 },
1333 { 128, 0x1, 0x0, 1 },
1334 { 136, 0x1, 0x1, 1 },
1335 { 192, 0x2, 0x0, 1 },
1336 { 204, 0x2, 0x1, 1 },
1337
1338 { 64, 0x0, 0x0, 2 },
1339 { 68, 0x0, 0x1, 2 },
1340 { 125, 0x0, 0x2, 2 },
1341 { 128, 0x1, 0x0, 2 },
1342 { 136, 0x1, 0x1, 2 },
1343 { 192, 0x2, 0x0, 2 },
1344 { 204, 0x2, 0x1, 2 },
1345
1346 { 250, 0x2, 0x2, 1 },
1347 { 256, 0x3, 0x0, 1 },
1348 { 272, 0x3, 0x1, 1 },
1349 { 384, 0x4, 0x0, 1 },
1350 { 408, 0x4, 0x1, 1 },
1351 { 375, 0x4, 0x2, 1 },
1352 { 512, 0x5, 0x0, 1 },
1353 { 544, 0x5, 0x1, 1 },
1354 { 500, 0x5, 0x2, 1 },
1355 { 768, 0x6, 0x0, 1 },
1356 { 816, 0x6, 0x1, 1 },
1357 { 750, 0x6, 0x2, 1 },
1358 { 1024, 0x7, 0x0, 1 },
1359 { 1088, 0x7, 0x1, 1 },
1360 { 1000, 0x7, 0x2, 1 },
1361 { 1408, 0x8, 0x0, 1 },
1362 { 1496, 0x8, 0x1, 1 },
1363 { 1536, 0x9, 0x0, 1 },
1364 { 1632, 0x9, 0x1, 1 },
1365 { 1500, 0x9, 0x2, 1 },
1366
1367 { 250, 0x2, 0x2, 2 },
1368 { 256, 0x3, 0x0, 2 },
1369 { 272, 0x3, 0x1, 2 },
1370 { 384, 0x4, 0x0, 2 },
1371 { 408, 0x4, 0x1, 2 },
1372 { 375, 0x4, 0x2, 2 },
1373 { 512, 0x5, 0x0, 2 },
1374 { 544, 0x5, 0x1, 2 },
1375 { 500, 0x5, 0x2, 2 },
1376 { 768, 0x6, 0x0, 2 },
1377 { 816, 0x6, 0x1, 2 },
1378 { 750, 0x6, 0x2, 2 },
1379 { 1024, 0x7, 0x0, 2 },
1380 { 1088, 0x7, 0x1, 2 },
1381 { 1000, 0x7, 0x2, 2 },
1382 { 1408, 0x8, 0x0, 2 },
1383 { 1496, 0x8, 0x1, 2 },
1384 { 1536, 0x9, 0x0, 2 },
1385 { 1632, 0x9, 0x1, 2 },
1386 { 1500, 0x9, 0x2, 2 },
1387};
1388
1389
1390static struct {
1391 int ratio;
1392 int div;
1393} bclk_divs[] = {
1394 { 10, 0 },
1395 { 20, 2 },
1396 { 30, 3 },
1397 { 40, 4 },
1398 { 50, 5 },
1399 { 60, 7 },
1400 { 80, 8 },
1401 { 100, 9 },
1402 { 120, 11 },
1403 { 160, 12 },
1404 { 200, 13 },
1405 { 220, 14 },
1406 { 240, 15 },
1407 { 300, 17 },
1408 { 320, 18 },
1409 { 440, 19 },
1410 { 480, 20 },
1411};
1412
1413
1414static struct {
1415 int rate;
1416 int value;
1417} sample_rates[] = {
1418 { 8000, 0 },
1419 { 11025, 1 },
1420 { 12000, 2 },
1421 { 16000, 3 },
1422 { 22050, 4 },
1423 { 24000, 5 },
1424 { 32000, 6 },
1425 { 44100, 7 },
1426 { 48000, 8 },
1427 { 88200, 9 },
1428 { 96000, 10 },
1429 { 0, 0 },
1430};
1431
1432static int wm8903_hw_params(struct snd_pcm_substream *substream,
1433 struct snd_pcm_hw_params *params,
1434 struct snd_soc_dai *dai)
1435{
1436 struct snd_soc_codec *codec = dai->codec;
1437 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1438 int fs = params_rate(params);
1439 int bclk;
1440 int bclk_div;
1441 int i;
1442 int dsp_config;
1443 int clk_config;
1444 int best_val;
1445 int cur_val;
1446 int clk_sys;
1447
1448 u16 aif1 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_1);
1449 u16 aif2 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_2);
1450 u16 aif3 = snd_soc_read(codec, WM8903_AUDIO_INTERFACE_3);
1451 u16 clock0 = snd_soc_read(codec, WM8903_CLOCK_RATES_0);
1452 u16 clock1 = snd_soc_read(codec, WM8903_CLOCK_RATES_1);
1453 u16 dac_digital1 = snd_soc_read(codec, WM8903_DAC_DIGITAL_1);
1454
1455
1456 if (fs <= 24000)
1457 dac_digital1 |= WM8903_DAC_SB_FILT;
1458 else
1459 dac_digital1 &= ~WM8903_DAC_SB_FILT;
1460
1461
1462 dsp_config = 0;
1463 best_val = abs(sample_rates[dsp_config].rate - fs);
1464 for (i = 1; i < ARRAY_SIZE(sample_rates); i++) {
1465 cur_val = abs(sample_rates[i].rate - fs);
1466 if (cur_val <= best_val) {
1467 dsp_config = i;
1468 best_val = cur_val;
1469 }
1470 }
1471
1472 dev_dbg(codec->dev, "DSP fs = %dHz\n", sample_rates[dsp_config].rate);
1473 clock1 &= ~WM8903_SAMPLE_RATE_MASK;
1474 clock1 |= sample_rates[dsp_config].value;
1475
1476 aif1 &= ~WM8903_AIF_WL_MASK;
1477 bclk = 2 * fs;
1478 switch (params_width(params)) {
1479 case 16:
1480 bclk *= 16;
1481 break;
1482 case 20:
1483 bclk *= 20;
1484 aif1 |= 0x4;
1485 break;
1486 case 24:
1487 bclk *= 24;
1488 aif1 |= 0x8;
1489 break;
1490 case 32:
1491 bclk *= 32;
1492 aif1 |= 0xc;
1493 break;
1494 default:
1495 return -EINVAL;
1496 }
1497
1498 dev_dbg(codec->dev, "MCLK = %dHz, target sample rate = %dHz\n",
1499 wm8903->sysclk, fs);
1500
1501
1502
1503
1504
1505 clk_config = 0;
1506 best_val = abs((wm8903->sysclk /
1507 (clk_sys_ratios[0].mclk_div *
1508 clk_sys_ratios[0].div)) - fs);
1509 for (i = 1; i < ARRAY_SIZE(clk_sys_ratios); i++) {
1510 cur_val = abs((wm8903->sysclk /
1511 (clk_sys_ratios[i].mclk_div *
1512 clk_sys_ratios[i].div)) - fs);
1513
1514 if (cur_val <= best_val) {
1515 clk_config = i;
1516 best_val = cur_val;
1517 }
1518 }
1519
1520 if (clk_sys_ratios[clk_config].mclk_div == 2) {
1521 clock0 |= WM8903_MCLKDIV2;
1522 clk_sys = wm8903->sysclk / 2;
1523 } else {
1524 clock0 &= ~WM8903_MCLKDIV2;
1525 clk_sys = wm8903->sysclk;
1526 }
1527
1528 clock1 &= ~(WM8903_CLK_SYS_RATE_MASK |
1529 WM8903_CLK_SYS_MODE_MASK);
1530 clock1 |= clk_sys_ratios[clk_config].rate << WM8903_CLK_SYS_RATE_SHIFT;
1531 clock1 |= clk_sys_ratios[clk_config].mode << WM8903_CLK_SYS_MODE_SHIFT;
1532
1533 dev_dbg(codec->dev, "CLK_SYS_RATE=%x, CLK_SYS_MODE=%x div=%d\n",
1534 clk_sys_ratios[clk_config].rate,
1535 clk_sys_ratios[clk_config].mode,
1536 clk_sys_ratios[clk_config].div);
1537
1538 dev_dbg(codec->dev, "Actual CLK_SYS = %dHz\n", clk_sys);
1539
1540
1541
1542
1543
1544
1545 bclk_div = 0;
1546 best_val = ((clk_sys * 10) / bclk_divs[0].ratio) - bclk;
1547 i = 1;
1548 while (i < ARRAY_SIZE(bclk_divs)) {
1549 cur_val = ((clk_sys * 10) / bclk_divs[i].ratio) - bclk;
1550 if (cur_val < 0)
1551 break;
1552 bclk_div = i;
1553 best_val = cur_val;
1554 i++;
1555 }
1556
1557 aif2 &= ~WM8903_BCLK_DIV_MASK;
1558 aif3 &= ~WM8903_LRCLK_RATE_MASK;
1559
1560 dev_dbg(codec->dev, "BCLK ratio %d for %dHz - actual BCLK = %dHz\n",
1561 bclk_divs[bclk_div].ratio / 10, bclk,
1562 (clk_sys * 10) / bclk_divs[bclk_div].ratio);
1563
1564 aif2 |= bclk_divs[bclk_div].div;
1565 aif3 |= bclk / fs;
1566
1567 wm8903->fs = params_rate(params);
1568 wm8903_set_deemph(codec);
1569
1570 snd_soc_write(codec, WM8903_CLOCK_RATES_0, clock0);
1571 snd_soc_write(codec, WM8903_CLOCK_RATES_1, clock1);
1572 snd_soc_write(codec, WM8903_AUDIO_INTERFACE_1, aif1);
1573 snd_soc_write(codec, WM8903_AUDIO_INTERFACE_2, aif2);
1574 snd_soc_write(codec, WM8903_AUDIO_INTERFACE_3, aif3);
1575 snd_soc_write(codec, WM8903_DAC_DIGITAL_1, dac_digital1);
1576
1577 return 0;
1578}
1579
1580
1581
1582
1583
1584
1585
1586
1587
1588
1589
1590
1591
1592
1593
1594
1595
1596
1597int wm8903_mic_detect(struct snd_soc_codec *codec, struct snd_soc_jack *jack,
1598 int det, int shrt)
1599{
1600 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1601 int irq_mask = WM8903_MICDET_EINT | WM8903_MICSHRT_EINT;
1602
1603 dev_dbg(codec->dev, "Enabling microphone detection: %x %x\n",
1604 det, shrt);
1605
1606
1607 wm8903->mic_jack = jack;
1608 wm8903->mic_det = det;
1609 wm8903->mic_short = shrt;
1610
1611
1612 if (det)
1613 irq_mask &= ~WM8903_MICDET_EINT;
1614 if (shrt)
1615 irq_mask &= ~WM8903_MICSHRT_EINT;
1616
1617 snd_soc_update_bits(codec, WM8903_INTERRUPT_STATUS_1_MASK,
1618 WM8903_MICDET_EINT | WM8903_MICSHRT_EINT,
1619 irq_mask);
1620
1621 if (det || shrt) {
1622
1623
1624 snd_soc_update_bits(codec, WM8903_WRITE_SEQUENCER_0,
1625 WM8903_WSEQ_ENA, WM8903_WSEQ_ENA);
1626 snd_soc_update_bits(codec, WM8903_MIC_BIAS_CONTROL_0,
1627 WM8903_MICDET_ENA, WM8903_MICDET_ENA);
1628 } else {
1629 snd_soc_update_bits(codec, WM8903_MIC_BIAS_CONTROL_0,
1630 WM8903_MICDET_ENA, 0);
1631 }
1632
1633 return 0;
1634}
1635EXPORT_SYMBOL_GPL(wm8903_mic_detect);
1636
1637static irqreturn_t wm8903_irq(int irq, void *data)
1638{
1639 struct wm8903_priv *wm8903 = data;
1640 int mic_report, ret;
1641 unsigned int int_val, mask, int_pol;
1642
1643 ret = regmap_read(wm8903->regmap, WM8903_INTERRUPT_STATUS_1_MASK,
1644 &mask);
1645 if (ret != 0) {
1646 dev_err(wm8903->dev, "Failed to read IRQ mask: %d\n", ret);
1647 return IRQ_NONE;
1648 }
1649
1650 ret = regmap_read(wm8903->regmap, WM8903_INTERRUPT_STATUS_1, &int_val);
1651 if (ret != 0) {
1652 dev_err(wm8903->dev, "Failed to read IRQ status: %d\n", ret);
1653 return IRQ_NONE;
1654 }
1655
1656 int_val &= ~mask;
1657
1658 if (int_val & WM8903_WSEQ_BUSY_EINT) {
1659 dev_warn(wm8903->dev, "Write sequencer done\n");
1660 }
1661
1662
1663
1664
1665
1666
1667
1668
1669 mic_report = wm8903->mic_last_report;
1670 ret = regmap_read(wm8903->regmap, WM8903_INTERRUPT_POLARITY_1,
1671 &int_pol);
1672 if (ret != 0) {
1673 dev_err(wm8903->dev, "Failed to read interrupt polarity: %d\n",
1674 ret);
1675 return IRQ_HANDLED;
1676 }
1677
1678#ifndef CONFIG_SND_SOC_WM8903_MODULE
1679 if (int_val & (WM8903_MICSHRT_EINT | WM8903_MICDET_EINT))
1680 trace_snd_soc_jack_irq(dev_name(wm8903->dev));
1681#endif
1682
1683 if (int_val & WM8903_MICSHRT_EINT) {
1684 dev_dbg(wm8903->dev, "Microphone short (pol=%x)\n", int_pol);
1685
1686 mic_report ^= wm8903->mic_short;
1687 int_pol ^= WM8903_MICSHRT_INV;
1688 }
1689
1690 if (int_val & WM8903_MICDET_EINT) {
1691 dev_dbg(wm8903->dev, "Microphone detect (pol=%x)\n", int_pol);
1692
1693 mic_report ^= wm8903->mic_det;
1694 int_pol ^= WM8903_MICDET_INV;
1695
1696 msleep(wm8903->mic_delay);
1697 }
1698
1699 regmap_update_bits(wm8903->regmap, WM8903_INTERRUPT_POLARITY_1,
1700 WM8903_MICSHRT_INV | WM8903_MICDET_INV, int_pol);
1701
1702 snd_soc_jack_report(wm8903->mic_jack, mic_report,
1703 wm8903->mic_short | wm8903->mic_det);
1704
1705 wm8903->mic_last_report = mic_report;
1706
1707 return IRQ_HANDLED;
1708}
1709
1710#define WM8903_PLAYBACK_RATES (SNDRV_PCM_RATE_8000 |\
1711 SNDRV_PCM_RATE_11025 | \
1712 SNDRV_PCM_RATE_16000 | \
1713 SNDRV_PCM_RATE_22050 | \
1714 SNDRV_PCM_RATE_32000 | \
1715 SNDRV_PCM_RATE_44100 | \
1716 SNDRV_PCM_RATE_48000 | \
1717 SNDRV_PCM_RATE_88200 | \
1718 SNDRV_PCM_RATE_96000)
1719
1720#define WM8903_CAPTURE_RATES (SNDRV_PCM_RATE_8000 |\
1721 SNDRV_PCM_RATE_11025 | \
1722 SNDRV_PCM_RATE_16000 | \
1723 SNDRV_PCM_RATE_22050 | \
1724 SNDRV_PCM_RATE_32000 | \
1725 SNDRV_PCM_RATE_44100 | \
1726 SNDRV_PCM_RATE_48000)
1727
1728#define WM8903_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
1729 SNDRV_PCM_FMTBIT_S20_3LE |\
1730 SNDRV_PCM_FMTBIT_S24_LE)
1731
1732static const struct snd_soc_dai_ops wm8903_dai_ops = {
1733 .hw_params = wm8903_hw_params,
1734 .digital_mute = wm8903_digital_mute,
1735 .set_fmt = wm8903_set_dai_fmt,
1736 .set_sysclk = wm8903_set_dai_sysclk,
1737};
1738
1739static struct snd_soc_dai_driver wm8903_dai = {
1740 .name = "wm8903-hifi",
1741 .playback = {
1742 .stream_name = "Playback",
1743 .channels_min = 2,
1744 .channels_max = 2,
1745 .rates = WM8903_PLAYBACK_RATES,
1746 .formats = WM8903_FORMATS,
1747 },
1748 .capture = {
1749 .stream_name = "Capture",
1750 .channels_min = 2,
1751 .channels_max = 2,
1752 .rates = WM8903_CAPTURE_RATES,
1753 .formats = WM8903_FORMATS,
1754 },
1755 .ops = &wm8903_dai_ops,
1756 .symmetric_rates = 1,
1757};
1758
1759static int wm8903_resume(struct snd_soc_codec *codec)
1760{
1761 struct wm8903_priv *wm8903 = snd_soc_codec_get_drvdata(codec);
1762
1763 regcache_sync(wm8903->regmap);
1764
1765 return 0;
1766}
1767
1768#ifdef CONFIG_GPIOLIB
1769static int wm8903_gpio_request(struct gpio_chip *chip, unsigned offset)
1770{
1771 if (offset >= WM8903_NUM_GPIO)
1772 return -EINVAL;
1773
1774 return 0;
1775}
1776
1777static int wm8903_gpio_direction_in(struct gpio_chip *chip, unsigned offset)
1778{
1779 struct wm8903_priv *wm8903 = gpiochip_get_data(chip);
1780 unsigned int mask, val;
1781 int ret;
1782
1783 mask = WM8903_GP1_FN_MASK | WM8903_GP1_DIR_MASK;
1784 val = (WM8903_GPn_FN_GPIO_INPUT << WM8903_GP1_FN_SHIFT) |
1785 WM8903_GP1_DIR;
1786
1787 ret = regmap_update_bits(wm8903->regmap,
1788 WM8903_GPIO_CONTROL_1 + offset, mask, val);
1789 if (ret < 0)
1790 return ret;
1791
1792 return 0;
1793}
1794
1795static int wm8903_gpio_get(struct gpio_chip *chip, unsigned offset)
1796{
1797 struct wm8903_priv *wm8903 = gpiochip_get_data(chip);
1798 unsigned int reg;
1799
1800 regmap_read(wm8903->regmap, WM8903_GPIO_CONTROL_1 + offset, ®);
1801
1802 return !!((reg & WM8903_GP1_LVL_MASK) >> WM8903_GP1_LVL_SHIFT);
1803}
1804
1805static int wm8903_gpio_direction_out(struct gpio_chip *chip,
1806 unsigned offset, int value)
1807{
1808 struct wm8903_priv *wm8903 = gpiochip_get_data(chip);
1809 unsigned int mask, val;
1810 int ret;
1811
1812 mask = WM8903_GP1_FN_MASK | WM8903_GP1_DIR_MASK | WM8903_GP1_LVL_MASK;
1813 val = (WM8903_GPn_FN_GPIO_OUTPUT << WM8903_GP1_FN_SHIFT) |
1814 (value << WM8903_GP2_LVL_SHIFT);
1815
1816 ret = regmap_update_bits(wm8903->regmap,
1817 WM8903_GPIO_CONTROL_1 + offset, mask, val);
1818 if (ret < 0)
1819 return ret;
1820
1821 return 0;
1822}
1823
1824static void wm8903_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
1825{
1826 struct wm8903_priv *wm8903 = gpiochip_get_data(chip);
1827
1828 regmap_update_bits(wm8903->regmap, WM8903_GPIO_CONTROL_1 + offset,
1829 WM8903_GP1_LVL_MASK,
1830 !!value << WM8903_GP1_LVL_SHIFT);
1831}
1832
1833static struct gpio_chip wm8903_template_chip = {
1834 .label = "wm8903",
1835 .owner = THIS_MODULE,
1836 .request = wm8903_gpio_request,
1837 .direction_input = wm8903_gpio_direction_in,
1838 .get = wm8903_gpio_get,
1839 .direction_output = wm8903_gpio_direction_out,
1840 .set = wm8903_gpio_set,
1841 .can_sleep = 1,
1842};
1843
1844static void wm8903_init_gpio(struct wm8903_priv *wm8903)
1845{
1846 struct wm8903_platform_data *pdata = wm8903->pdata;
1847 int ret;
1848
1849 wm8903->gpio_chip = wm8903_template_chip;
1850 wm8903->gpio_chip.ngpio = WM8903_NUM_GPIO;
1851 wm8903->gpio_chip.parent = wm8903->dev;
1852
1853 if (pdata->gpio_base)
1854 wm8903->gpio_chip.base = pdata->gpio_base;
1855 else
1856 wm8903->gpio_chip.base = -1;
1857
1858 ret = gpiochip_add_data(&wm8903->gpio_chip, wm8903);
1859 if (ret != 0)
1860 dev_err(wm8903->dev, "Failed to add GPIOs: %d\n", ret);
1861}
1862
1863static void wm8903_free_gpio(struct wm8903_priv *wm8903)
1864{
1865 gpiochip_remove(&wm8903->gpio_chip);
1866}
1867#else
1868static void wm8903_init_gpio(struct wm8903_priv *wm8903)
1869{
1870}
1871
1872static void wm8903_free_gpio(struct wm8903_priv *wm8903)
1873{
1874}
1875#endif
1876
1877static struct snd_soc_codec_driver soc_codec_dev_wm8903 = {
1878 .resume = wm8903_resume,
1879 .set_bias_level = wm8903_set_bias_level,
1880 .seq_notifier = wm8903_seq_notifier,
1881 .suspend_bias_off = true,
1882
1883 .controls = wm8903_snd_controls,
1884 .num_controls = ARRAY_SIZE(wm8903_snd_controls),
1885 .dapm_widgets = wm8903_dapm_widgets,
1886 .num_dapm_widgets = ARRAY_SIZE(wm8903_dapm_widgets),
1887 .dapm_routes = wm8903_intercon,
1888 .num_dapm_routes = ARRAY_SIZE(wm8903_intercon),
1889};
1890
1891static const struct regmap_config wm8903_regmap = {
1892 .reg_bits = 8,
1893 .val_bits = 16,
1894
1895 .max_register = WM8903_MAX_REGISTER,
1896 .volatile_reg = wm8903_volatile_register,
1897 .readable_reg = wm8903_readable_register,
1898
1899 .cache_type = REGCACHE_RBTREE,
1900 .reg_defaults = wm8903_reg_defaults,
1901 .num_reg_defaults = ARRAY_SIZE(wm8903_reg_defaults),
1902};
1903
1904static int wm8903_set_pdata_irq_trigger(struct i2c_client *i2c,
1905 struct wm8903_platform_data *pdata)
1906{
1907 struct irq_data *irq_data = irq_get_irq_data(i2c->irq);
1908 if (!irq_data) {
1909 dev_err(&i2c->dev, "Invalid IRQ: %d\n",
1910 i2c->irq);
1911 return -EINVAL;
1912 }
1913
1914 switch (irqd_get_trigger_type(irq_data)) {
1915 case IRQ_TYPE_NONE:
1916 default:
1917
1918
1919
1920
1921
1922 case IRQ_TYPE_LEVEL_HIGH:
1923 pdata->irq_active_low = false;
1924 break;
1925 case IRQ_TYPE_LEVEL_LOW:
1926 pdata->irq_active_low = true;
1927 break;
1928 }
1929
1930 return 0;
1931}
1932
1933static int wm8903_set_pdata_from_of(struct i2c_client *i2c,
1934 struct wm8903_platform_data *pdata)
1935{
1936 const struct device_node *np = i2c->dev.of_node;
1937 u32 val32;
1938 int i;
1939
1940 if (of_property_read_u32(np, "micdet-cfg", &val32) >= 0)
1941 pdata->micdet_cfg = val32;
1942
1943 if (of_property_read_u32(np, "micdet-delay", &val32) >= 0)
1944 pdata->micdet_delay = val32;
1945
1946 if (of_property_read_u32_array(np, "gpio-cfg", pdata->gpio_cfg,
1947 ARRAY_SIZE(pdata->gpio_cfg)) >= 0) {
1948
1949
1950
1951
1952
1953
1954
1955
1956
1957
1958
1959
1960 for (i = 0; i < ARRAY_SIZE(pdata->gpio_cfg); i++) {
1961 if (pdata->gpio_cfg[i] == 0) {
1962 pdata->gpio_cfg[i] = WM8903_GPIO_CONFIG_ZERO;
1963 } else if (pdata->gpio_cfg[i] == 0xffffffff) {
1964 pdata->gpio_cfg[i] = 0;
1965 } else if (pdata->gpio_cfg[i] > 0x7fff) {
1966 dev_err(&i2c->dev, "Invalid gpio-cfg[%d] %x\n",
1967 i, pdata->gpio_cfg[i]);
1968 return -EINVAL;
1969 }
1970 }
1971 }
1972
1973 return 0;
1974}
1975
1976static int wm8903_i2c_probe(struct i2c_client *i2c,
1977 const struct i2c_device_id *id)
1978{
1979 struct wm8903_platform_data *pdata = dev_get_platdata(&i2c->dev);
1980 struct wm8903_priv *wm8903;
1981 int trigger;
1982 bool mic_gpio = false;
1983 unsigned int val, irq_pol;
1984 int ret, i;
1985
1986 wm8903 = devm_kzalloc(&i2c->dev, sizeof(struct wm8903_priv),
1987 GFP_KERNEL);
1988 if (wm8903 == NULL)
1989 return -ENOMEM;
1990
1991 mutex_init(&wm8903->lock);
1992 wm8903->dev = &i2c->dev;
1993
1994 wm8903->regmap = devm_regmap_init_i2c(i2c, &wm8903_regmap);
1995 if (IS_ERR(wm8903->regmap)) {
1996 ret = PTR_ERR(wm8903->regmap);
1997 dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
1998 ret);
1999 return ret;
2000 }
2001
2002 i2c_set_clientdata(i2c, wm8903);
2003
2004
2005 if (pdata) {
2006 wm8903->pdata = pdata;
2007 } else {
2008 wm8903->pdata = devm_kzalloc(&i2c->dev,
2009 sizeof(struct wm8903_platform_data),
2010 GFP_KERNEL);
2011 if (wm8903->pdata == NULL) {
2012 dev_err(&i2c->dev, "Failed to allocate pdata\n");
2013 return -ENOMEM;
2014 }
2015
2016 if (i2c->irq) {
2017 ret = wm8903_set_pdata_irq_trigger(i2c, wm8903->pdata);
2018 if (ret != 0)
2019 return ret;
2020 }
2021
2022 if (i2c->dev.of_node) {
2023 ret = wm8903_set_pdata_from_of(i2c, wm8903->pdata);
2024 if (ret != 0)
2025 return ret;
2026 }
2027 }
2028
2029 pdata = wm8903->pdata;
2030
2031 ret = regmap_read(wm8903->regmap, WM8903_SW_RESET_AND_ID, &val);
2032 if (ret != 0) {
2033 dev_err(&i2c->dev, "Failed to read chip ID: %d\n", ret);
2034 goto err;
2035 }
2036 if (val != 0x8903) {
2037 dev_err(&i2c->dev, "Device with ID %x is not a WM8903\n", val);
2038 ret = -ENODEV;
2039 goto err;
2040 }
2041
2042 ret = regmap_read(wm8903->regmap, WM8903_REVISION_NUMBER, &val);
2043 if (ret != 0) {
2044 dev_err(&i2c->dev, "Failed to read chip revision: %d\n", ret);
2045 goto err;
2046 }
2047 dev_info(&i2c->dev, "WM8903 revision %c\n",
2048 (val & WM8903_CHIP_REV_MASK) + 'A');
2049
2050
2051 regmap_write(wm8903->regmap, WM8903_SW_RESET_AND_ID, 0x8903);
2052
2053 wm8903_init_gpio(wm8903);
2054
2055
2056 for (i = 0; i < ARRAY_SIZE(pdata->gpio_cfg); i++) {
2057 if ((!pdata->gpio_cfg[i]) ||
2058 (pdata->gpio_cfg[i] > WM8903_GPIO_CONFIG_ZERO))
2059 continue;
2060
2061 regmap_write(wm8903->regmap, WM8903_GPIO_CONTROL_1 + i,
2062 pdata->gpio_cfg[i] & 0x7fff);
2063
2064 val = (pdata->gpio_cfg[i] & WM8903_GP1_FN_MASK)
2065 >> WM8903_GP1_FN_SHIFT;
2066
2067 switch (val) {
2068 case WM8903_GPn_FN_MICBIAS_CURRENT_DETECT:
2069 case WM8903_GPn_FN_MICBIAS_SHORT_DETECT:
2070 mic_gpio = true;
2071 break;
2072 default:
2073 break;
2074 }
2075 }
2076
2077
2078 regmap_write(wm8903->regmap, WM8903_MIC_BIAS_CONTROL_0,
2079 pdata->micdet_cfg);
2080
2081
2082 if (pdata->micdet_cfg)
2083 regmap_update_bits(wm8903->regmap, WM8903_WRITE_SEQUENCER_0,
2084 WM8903_WSEQ_ENA, WM8903_WSEQ_ENA);
2085
2086
2087
2088
2089
2090
2091
2092 WARN_ON(!mic_gpio && (pdata->micdet_cfg & WM8903_MICDET_ENA));
2093
2094 wm8903->mic_delay = pdata->micdet_delay;
2095
2096 if (i2c->irq) {
2097 if (pdata->irq_active_low) {
2098 trigger = IRQF_TRIGGER_LOW;
2099 irq_pol = WM8903_IRQ_POL;
2100 } else {
2101 trigger = IRQF_TRIGGER_HIGH;
2102 irq_pol = 0;
2103 }
2104
2105 regmap_update_bits(wm8903->regmap, WM8903_INTERRUPT_CONTROL,
2106 WM8903_IRQ_POL, irq_pol);
2107
2108 ret = request_threaded_irq(i2c->irq, NULL, wm8903_irq,
2109 trigger | IRQF_ONESHOT,
2110 "wm8903", wm8903);
2111 if (ret != 0) {
2112 dev_err(wm8903->dev, "Failed to request IRQ: %d\n",
2113 ret);
2114 return ret;
2115 }
2116
2117
2118 regmap_update_bits(wm8903->regmap,
2119 WM8903_INTERRUPT_STATUS_1_MASK,
2120 WM8903_IM_WSEQ_BUSY_EINT, 0);
2121 }
2122
2123
2124 regmap_update_bits(wm8903->regmap, WM8903_ADC_DIGITAL_VOLUME_LEFT,
2125 WM8903_ADCVU, WM8903_ADCVU);
2126 regmap_update_bits(wm8903->regmap, WM8903_ADC_DIGITAL_VOLUME_RIGHT,
2127 WM8903_ADCVU, WM8903_ADCVU);
2128
2129 regmap_update_bits(wm8903->regmap, WM8903_DAC_DIGITAL_VOLUME_LEFT,
2130 WM8903_DACVU, WM8903_DACVU);
2131 regmap_update_bits(wm8903->regmap, WM8903_DAC_DIGITAL_VOLUME_RIGHT,
2132 WM8903_DACVU, WM8903_DACVU);
2133
2134 regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT1_LEFT,
2135 WM8903_HPOUTVU, WM8903_HPOUTVU);
2136 regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT1_RIGHT,
2137 WM8903_HPOUTVU, WM8903_HPOUTVU);
2138
2139 regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT2_LEFT,
2140 WM8903_LINEOUTVU, WM8903_LINEOUTVU);
2141 regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT2_RIGHT,
2142 WM8903_LINEOUTVU, WM8903_LINEOUTVU);
2143
2144 regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT3_LEFT,
2145 WM8903_SPKVU, WM8903_SPKVU);
2146 regmap_update_bits(wm8903->regmap, WM8903_ANALOGUE_OUT3_RIGHT,
2147 WM8903_SPKVU, WM8903_SPKVU);
2148
2149
2150 regmap_update_bits(wm8903->regmap, WM8903_DAC_DIGITAL_1,
2151 WM8903_DAC_MUTEMODE | WM8903_DAC_MUTE,
2152 WM8903_DAC_MUTEMODE | WM8903_DAC_MUTE);
2153
2154 ret = snd_soc_register_codec(&i2c->dev,
2155 &soc_codec_dev_wm8903, &wm8903_dai, 1);
2156 if (ret != 0)
2157 goto err;
2158
2159 return 0;
2160err:
2161 return ret;
2162}
2163
2164static int wm8903_i2c_remove(struct i2c_client *client)
2165{
2166 struct wm8903_priv *wm8903 = i2c_get_clientdata(client);
2167
2168 if (client->irq)
2169 free_irq(client->irq, wm8903);
2170 wm8903_free_gpio(wm8903);
2171 snd_soc_unregister_codec(&client->dev);
2172
2173 return 0;
2174}
2175
2176static const struct of_device_id wm8903_of_match[] = {
2177 { .compatible = "wlf,wm8903", },
2178 {},
2179};
2180MODULE_DEVICE_TABLE(of, wm8903_of_match);
2181
2182static const struct i2c_device_id wm8903_i2c_id[] = {
2183 { "wm8903", 0 },
2184 { }
2185};
2186MODULE_DEVICE_TABLE(i2c, wm8903_i2c_id);
2187
2188static struct i2c_driver wm8903_i2c_driver = {
2189 .driver = {
2190 .name = "wm8903",
2191 .of_match_table = wm8903_of_match,
2192 },
2193 .probe = wm8903_i2c_probe,
2194 .remove = wm8903_i2c_remove,
2195 .id_table = wm8903_i2c_id,
2196};
2197
2198module_i2c_driver(wm8903_i2c_driver);
2199
2200MODULE_DESCRIPTION("ASoC WM8903 driver");
2201MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.cm>");
2202MODULE_LICENSE("GPL");
2203
