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TOMOYO Linux Cross Reference
Linux/sound/soc/codecs/wm8995.c

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  1 /*
  2  * wm8995.c  --  WM8995 ALSA SoC Audio driver
  3  *
  4  * Copyright 2010 Wolfson Microelectronics plc
  5  *
  6  * Author: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
  7  *
  8  * Based on wm8994.c and wm_hubs.c by Mark Brown
  9  *
 10  * This program is free software; you can redistribute it and/or modify
 11  * it under the terms of the GNU General Public License version 2 as
 12  * published by the Free Software Foundation.
 13  */
 14 
 15 #include <linux/module.h>
 16 #include <linux/moduleparam.h>
 17 #include <linux/init.h>
 18 #include <linux/delay.h>
 19 #include <linux/pm.h>
 20 #include <linux/i2c.h>
 21 #include <linux/regmap.h>
 22 #include <linux/spi/spi.h>
 23 #include <linux/regulator/consumer.h>
 24 #include <linux/slab.h>
 25 #include <sound/core.h>
 26 #include <sound/pcm.h>
 27 #include <sound/pcm_params.h>
 28 #include <sound/soc.h>
 29 #include <sound/soc-dapm.h>
 30 #include <sound/initval.h>
 31 #include <sound/tlv.h>
 32 
 33 #include "wm8995.h"
 34 
 35 #define WM8995_NUM_SUPPLIES 8
 36 static const char *wm8995_supply_names[WM8995_NUM_SUPPLIES] = {
 37         "DCVDD",
 38         "DBVDD1",
 39         "DBVDD2",
 40         "DBVDD3",
 41         "AVDD1",
 42         "AVDD2",
 43         "CPVDD",
 44         "MICVDD"
 45 };
 46 
 47 static const struct reg_default wm8995_reg_defaults[] = {
 48         { 0, 0x8995 },
 49         { 5, 0x0100 },
 50         { 16, 0x000b },
 51         { 17, 0x000b },
 52         { 24, 0x02c0 },
 53         { 25, 0x02c0 },
 54         { 26, 0x02c0 },
 55         { 27, 0x02c0 },
 56         { 28, 0x000f },
 57         { 32, 0x0005 },
 58         { 33, 0x0005 },
 59         { 40, 0x0003 },
 60         { 41, 0x0013 },
 61         { 48, 0x0004 },
 62         { 56, 0x09f8 },
 63         { 64, 0x1f25 },
 64         { 69, 0x0004 },
 65         { 82, 0xaaaa },
 66         { 84, 0x2a2a },
 67         { 146, 0x0060 },
 68         { 256, 0x0002 },
 69         { 257, 0x8004 },
 70         { 520, 0x0010 },
 71         { 528, 0x0083 },
 72         { 529, 0x0083 },
 73         { 548, 0x0c80 },
 74         { 580, 0x0c80 },
 75         { 768, 0x4050 },
 76         { 769, 0x4000 },
 77         { 771, 0x0040 },
 78         { 772, 0x0040 },
 79         { 773, 0x0040 },
 80         { 774, 0x0004 },
 81         { 775, 0x0100 },
 82         { 784, 0x4050 },
 83         { 785, 0x4000 },
 84         { 787, 0x0040 },
 85         { 788, 0x0040 },
 86         { 789, 0x0040 },
 87         { 1024, 0x00c0 },
 88         { 1025, 0x00c0 },
 89         { 1026, 0x00c0 },
 90         { 1027, 0x00c0 },
 91         { 1028, 0x00c0 },
 92         { 1029, 0x00c0 },
 93         { 1030, 0x00c0 },
 94         { 1031, 0x00c0 },
 95         { 1056, 0x0200 },
 96         { 1057, 0x0010 },
 97         { 1058, 0x0200 },
 98         { 1059, 0x0010 },
 99         { 1088, 0x0098 },
100         { 1089, 0x0845 },
101         { 1104, 0x0098 },
102         { 1105, 0x0845 },
103         { 1152, 0x6318 },
104         { 1153, 0x6300 },
105         { 1154, 0x0fca },
106         { 1155, 0x0400 },
107         { 1156, 0x00d8 },
108         { 1157, 0x1eb5 },
109         { 1158, 0xf145 },
110         { 1159, 0x0b75 },
111         { 1160, 0x01c5 },
112         { 1161, 0x1c58 },
113         { 1162, 0xf373 },
114         { 1163, 0x0a54 },
115         { 1164, 0x0558 },
116         { 1165, 0x168e },
117         { 1166, 0xf829 },
118         { 1167, 0x07ad },
119         { 1168, 0x1103 },
120         { 1169, 0x0564 },
121         { 1170, 0x0559 },
122         { 1171, 0x4000 },
123         { 1184, 0x6318 },
124         { 1185, 0x6300 },
125         { 1186, 0x0fca },
126         { 1187, 0x0400 },
127         { 1188, 0x00d8 },
128         { 1189, 0x1eb5 },
129         { 1190, 0xf145 },
130         { 1191, 0x0b75 },
131         { 1192, 0x01c5 },
132         { 1193, 0x1c58 },
133         { 1194, 0xf373 },
134         { 1195, 0x0a54 },
135         { 1196, 0x0558 },
136         { 1197, 0x168e },
137         { 1198, 0xf829 },
138         { 1199, 0x07ad },
139         { 1200, 0x1103 },
140         { 1201, 0x0564 },
141         { 1202, 0x0559 },
142         { 1203, 0x4000 },
143         { 1280, 0x00c0 },
144         { 1281, 0x00c0 },
145         { 1282, 0x00c0 },
146         { 1283, 0x00c0 },
147         { 1312, 0x0200 },
148         { 1313, 0x0010 },
149         { 1344, 0x0098 },
150         { 1345, 0x0845 },
151         { 1408, 0x6318 },
152         { 1409, 0x6300 },
153         { 1410, 0x0fca },
154         { 1411, 0x0400 },
155         { 1412, 0x00d8 },
156         { 1413, 0x1eb5 },
157         { 1414, 0xf145 },
158         { 1415, 0x0b75 },
159         { 1416, 0x01c5 },
160         { 1417, 0x1c58 },
161         { 1418, 0xf373 },
162         { 1419, 0x0a54 },
163         { 1420, 0x0558 },
164         { 1421, 0x168e },
165         { 1422, 0xf829 },
166         { 1423, 0x07ad },
167         { 1424, 0x1103 },
168         { 1425, 0x0564 },
169         { 1426, 0x0559 },
170         { 1427, 0x4000 },
171         { 1568, 0x0002 },
172         { 1792, 0xa100 },
173         { 1793, 0xa101 },
174         { 1794, 0xa101 },
175         { 1795, 0xa101 },
176         { 1796, 0xa101 },
177         { 1797, 0xa101 },
178         { 1798, 0xa101 },
179         { 1799, 0xa101 },
180         { 1800, 0xa101 },
181         { 1801, 0xa101 },
182         { 1802, 0xa101 },
183         { 1803, 0xa101 },
184         { 1804, 0xa101 },
185         { 1805, 0xa101 },
186         { 1825, 0x0055 },
187         { 1848, 0x3fff },
188         { 1849, 0x1fff },
189         { 2049, 0x0001 },
190         { 2050, 0x0069 },
191         { 2056, 0x0002 },
192         { 2057, 0x0003 },
193         { 2058, 0x0069 },
194         { 12288, 0x0001 },
195         { 12289, 0x0001 },
196         { 12291, 0x0006 },
197         { 12292, 0x0040 },
198         { 12293, 0x0001 },
199         { 12294, 0x000f },
200         { 12295, 0x0006 },
201         { 12296, 0x0001 },
202         { 12297, 0x0003 },
203         { 12298, 0x0104 },
204         { 12300, 0x0060 },
205         { 12301, 0x0011 },
206         { 12302, 0x0401 },
207         { 12304, 0x0050 },
208         { 12305, 0x0003 },
209         { 12306, 0x0100 },
210         { 12308, 0x0051 },
211         { 12309, 0x0003 },
212         { 12310, 0x0104 },
213         { 12311, 0x000a },
214         { 12312, 0x0060 },
215         { 12313, 0x003b },
216         { 12314, 0x0502 },
217         { 12315, 0x0100 },
218         { 12316, 0x2fff },
219         { 12320, 0x2fff },
220         { 12324, 0x2fff },
221         { 12328, 0x2fff },
222         { 12332, 0x2fff },
223         { 12336, 0x2fff },
224         { 12340, 0x2fff },
225         { 12344, 0x2fff },
226         { 12348, 0x2fff },
227         { 12352, 0x0001 },
228         { 12353, 0x0001 },
229         { 12355, 0x0006 },
230         { 12356, 0x0040 },
231         { 12357, 0x0001 },
232         { 12358, 0x000f },
233         { 12359, 0x0006 },
234         { 12360, 0x0001 },
235         { 12361, 0x0003 },
236         { 12362, 0x0104 },
237         { 12364, 0x0060 },
238         { 12365, 0x0011 },
239         { 12366, 0x0401 },
240         { 12368, 0x0050 },
241         { 12369, 0x0003 },
242         { 12370, 0x0100 },
243         { 12372, 0x0060 },
244         { 12373, 0x003b },
245         { 12374, 0x0502 },
246         { 12375, 0x0100 },
247         { 12376, 0x2fff },
248         { 12380, 0x2fff },
249         { 12384, 0x2fff },
250         { 12388, 0x2fff },
251         { 12392, 0x2fff },
252         { 12396, 0x2fff },
253         { 12400, 0x2fff },
254         { 12404, 0x2fff },
255         { 12408, 0x2fff },
256         { 12412, 0x2fff },
257         { 12416, 0x0001 },
258         { 12417, 0x0001 },
259         { 12419, 0x0006 },
260         { 12420, 0x0040 },
261         { 12421, 0x0001 },
262         { 12422, 0x000f },
263         { 12423, 0x0006 },
264         { 12424, 0x0001 },
265         { 12425, 0x0003 },
266         { 12426, 0x0106 },
267         { 12428, 0x0061 },
268         { 12429, 0x0011 },
269         { 12430, 0x0401 },
270         { 12432, 0x0050 },
271         { 12433, 0x0003 },
272         { 12434, 0x0102 },
273         { 12436, 0x0051 },
274         { 12437, 0x0003 },
275         { 12438, 0x0106 },
276         { 12439, 0x000a },
277         { 12440, 0x0061 },
278         { 12441, 0x003b },
279         { 12442, 0x0502 },
280         { 12443, 0x0100 },
281         { 12444, 0x2fff },
282         { 12448, 0x2fff },
283         { 12452, 0x2fff },
284         { 12456, 0x2fff },
285         { 12460, 0x2fff },
286         { 12464, 0x2fff },
287         { 12468, 0x2fff },
288         { 12472, 0x2fff },
289         { 12476, 0x2fff },
290         { 12480, 0x0001 },
291         { 12481, 0x0001 },
292         { 12483, 0x0006 },
293         { 12484, 0x0040 },
294         { 12485, 0x0001 },
295         { 12486, 0x000f },
296         { 12487, 0x0006 },
297         { 12488, 0x0001 },
298         { 12489, 0x0003 },
299         { 12490, 0x0106 },
300         { 12492, 0x0061 },
301         { 12493, 0x0011 },
302         { 12494, 0x0401 },
303         { 12496, 0x0050 },
304         { 12497, 0x0003 },
305         { 12498, 0x0102 },
306         { 12500, 0x0061 },
307         { 12501, 0x003b },
308         { 12502, 0x0502 },
309         { 12503, 0x0100 },
310         { 12504, 0x2fff },
311         { 12508, 0x2fff },
312         { 12512, 0x2fff },
313         { 12516, 0x2fff },
314         { 12520, 0x2fff },
315         { 12524, 0x2fff },
316         { 12528, 0x2fff },
317         { 12532, 0x2fff },
318         { 12536, 0x2fff },
319         { 12540, 0x2fff },
320         { 12544, 0x0060 },
321         { 12546, 0x0601 },
322         { 12548, 0x0050 },
323         { 12550, 0x0100 },
324         { 12552, 0x0001 },
325         { 12554, 0x0104 },
326         { 12555, 0x0100 },
327         { 12556, 0x2fff },
328         { 12560, 0x2fff },
329         { 12564, 0x2fff },
330         { 12568, 0x2fff },
331         { 12572, 0x2fff },
332         { 12576, 0x2fff },
333         { 12580, 0x2fff },
334         { 12584, 0x2fff },
335         { 12588, 0x2fff },
336         { 12592, 0x2fff },
337         { 12596, 0x2fff },
338         { 12600, 0x2fff },
339         { 12604, 0x2fff },
340         { 12608, 0x0061 },
341         { 12610, 0x0601 },
342         { 12612, 0x0050 },
343         { 12614, 0x0102 },
344         { 12616, 0x0001 },
345         { 12618, 0x0106 },
346         { 12619, 0x0100 },
347         { 12620, 0x2fff },
348         { 12624, 0x2fff },
349         { 12628, 0x2fff },
350         { 12632, 0x2fff },
351         { 12636, 0x2fff },
352         { 12640, 0x2fff },
353         { 12644, 0x2fff },
354         { 12648, 0x2fff },
355         { 12652, 0x2fff },
356         { 12656, 0x2fff },
357         { 12660, 0x2fff },
358         { 12664, 0x2fff },
359         { 12668, 0x2fff },
360         { 12672, 0x0060 },
361         { 12674, 0x0601 },
362         { 12676, 0x0061 },
363         { 12678, 0x0601 },
364         { 12680, 0x0050 },
365         { 12682, 0x0300 },
366         { 12684, 0x0001 },
367         { 12686, 0x0304 },
368         { 12688, 0x0040 },
369         { 12690, 0x000f },
370         { 12692, 0x0001 },
371         { 12695, 0x0100 },
372 };
373 
374 struct fll_config {
375         int src;
376         int in;
377         int out;
378 };
379 
380 struct wm8995_priv {
381         struct regmap *regmap;
382         int sysclk[2];
383         int mclk[2];
384         int aifclk[2];
385         struct fll_config fll[2], fll_suspend[2];
386         struct regulator_bulk_data supplies[WM8995_NUM_SUPPLIES];
387         struct notifier_block disable_nb[WM8995_NUM_SUPPLIES];
388         struct snd_soc_component *component;
389 };
390 
391 /*
392  * We can't use the same notifier block for more than one supply and
393  * there's no way I can see to get from a callback to the caller
394  * except container_of().
395  */
396 #define WM8995_REGULATOR_EVENT(n) \
397 static int wm8995_regulator_event_##n(struct notifier_block *nb, \
398                                       unsigned long event, void *data)    \
399 { \
400         struct wm8995_priv *wm8995 = container_of(nb, struct wm8995_priv, \
401                                      disable_nb[n]); \
402         if (event & REGULATOR_EVENT_DISABLE) { \
403                 regcache_mark_dirty(wm8995->regmap);    \
404         } \
405         return 0; \
406 }
407 
408 WM8995_REGULATOR_EVENT(0)
409 WM8995_REGULATOR_EVENT(1)
410 WM8995_REGULATOR_EVENT(2)
411 WM8995_REGULATOR_EVENT(3)
412 WM8995_REGULATOR_EVENT(4)
413 WM8995_REGULATOR_EVENT(5)
414 WM8995_REGULATOR_EVENT(6)
415 WM8995_REGULATOR_EVENT(7)
416 
417 static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
418 static const DECLARE_TLV_DB_SCALE(in1lr_pga_tlv, -1650, 150, 0);
419 static const DECLARE_TLV_DB_SCALE(in1l_boost_tlv, 0, 600, 0);
420 static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -3600, 150, 0);
421 
422 static const char *in1l_text[] = {
423         "Differential", "Single-ended IN1LN", "Single-ended IN1LP"
424 };
425 
426 static SOC_ENUM_SINGLE_DECL(in1l_enum, WM8995_LEFT_LINE_INPUT_CONTROL,
427                             2, in1l_text);
428 
429 static const char *in1r_text[] = {
430         "Differential", "Single-ended IN1RN", "Single-ended IN1RP"
431 };
432 
433 static SOC_ENUM_SINGLE_DECL(in1r_enum, WM8995_LEFT_LINE_INPUT_CONTROL,
434                             0, in1r_text);
435 
436 static const char *dmic_src_text[] = {
437         "DMICDAT1", "DMICDAT2", "DMICDAT3"
438 };
439 
440 static SOC_ENUM_SINGLE_DECL(dmic_src1_enum, WM8995_POWER_MANAGEMENT_5,
441                             8, dmic_src_text);
442 static SOC_ENUM_SINGLE_DECL(dmic_src2_enum, WM8995_POWER_MANAGEMENT_5,
443                             6, dmic_src_text);
444 
445 static const struct snd_kcontrol_new wm8995_snd_controls[] = {
446         SOC_DOUBLE_R_TLV("DAC1 Volume", WM8995_DAC1_LEFT_VOLUME,
447                 WM8995_DAC1_RIGHT_VOLUME, 0, 96, 0, digital_tlv),
448         SOC_DOUBLE_R("DAC1 Switch", WM8995_DAC1_LEFT_VOLUME,
449                 WM8995_DAC1_RIGHT_VOLUME, 9, 1, 1),
450 
451         SOC_DOUBLE_R_TLV("DAC2 Volume", WM8995_DAC2_LEFT_VOLUME,
452                 WM8995_DAC2_RIGHT_VOLUME, 0, 96, 0, digital_tlv),
453         SOC_DOUBLE_R("DAC2 Switch", WM8995_DAC2_LEFT_VOLUME,
454                 WM8995_DAC2_RIGHT_VOLUME, 9, 1, 1),
455 
456         SOC_DOUBLE_R_TLV("AIF1DAC1 Volume", WM8995_AIF1_DAC1_LEFT_VOLUME,
457                 WM8995_AIF1_DAC1_RIGHT_VOLUME, 0, 96, 0, digital_tlv),
458         SOC_DOUBLE_R_TLV("AIF1DAC2 Volume", WM8995_AIF1_DAC2_LEFT_VOLUME,
459                 WM8995_AIF1_DAC2_RIGHT_VOLUME, 0, 96, 0, digital_tlv),
460         SOC_DOUBLE_R_TLV("AIF2DAC Volume", WM8995_AIF2_DAC_LEFT_VOLUME,
461                 WM8995_AIF2_DAC_RIGHT_VOLUME, 0, 96, 0, digital_tlv),
462 
463         SOC_DOUBLE_R_TLV("IN1LR Volume", WM8995_LEFT_LINE_INPUT_1_VOLUME,
464                 WM8995_RIGHT_LINE_INPUT_1_VOLUME, 0, 31, 0, in1lr_pga_tlv),
465 
466         SOC_SINGLE_TLV("IN1L Boost", WM8995_LEFT_LINE_INPUT_CONTROL,
467                 4, 3, 0, in1l_boost_tlv),
468 
469         SOC_ENUM("IN1L Mode", in1l_enum),
470         SOC_ENUM("IN1R Mode", in1r_enum),
471 
472         SOC_ENUM("DMIC1 SRC", dmic_src1_enum),
473         SOC_ENUM("DMIC2 SRC", dmic_src2_enum),
474 
475         SOC_DOUBLE_TLV("DAC1 Sidetone Volume", WM8995_DAC1_MIXER_VOLUMES, 0, 5,
476                 24, 0, sidetone_tlv),
477         SOC_DOUBLE_TLV("DAC2 Sidetone Volume", WM8995_DAC2_MIXER_VOLUMES, 0, 5,
478                 24, 0, sidetone_tlv),
479 
480         SOC_DOUBLE_R_TLV("AIF1ADC1 Volume", WM8995_AIF1_ADC1_LEFT_VOLUME,
481                 WM8995_AIF1_ADC1_RIGHT_VOLUME, 0, 96, 0, digital_tlv),
482         SOC_DOUBLE_R_TLV("AIF1ADC2 Volume", WM8995_AIF1_ADC2_LEFT_VOLUME,
483                 WM8995_AIF1_ADC2_RIGHT_VOLUME, 0, 96, 0, digital_tlv),
484         SOC_DOUBLE_R_TLV("AIF2ADC Volume", WM8995_AIF2_ADC_LEFT_VOLUME,
485                 WM8995_AIF2_ADC_RIGHT_VOLUME, 0, 96, 0, digital_tlv)
486 };
487 
488 static void wm8995_update_class_w(struct snd_soc_component *component)
489 {
490         int enable = 1;
491         int source = 0;  /* GCC flow analysis can't track enable */
492         int reg, reg_r;
493 
494         /* We also need the same setting for L/R and only one path */
495         reg = snd_soc_component_read32(component, WM8995_DAC1_LEFT_MIXER_ROUTING);
496         switch (reg) {
497         case WM8995_AIF2DACL_TO_DAC1L:
498                 dev_dbg(component->dev, "Class W source AIF2DAC\n");
499                 source = 2 << WM8995_CP_DYN_SRC_SEL_SHIFT;
500                 break;
501         case WM8995_AIF1DAC2L_TO_DAC1L:
502                 dev_dbg(component->dev, "Class W source AIF1DAC2\n");
503                 source = 1 << WM8995_CP_DYN_SRC_SEL_SHIFT;
504                 break;
505         case WM8995_AIF1DAC1L_TO_DAC1L:
506                 dev_dbg(component->dev, "Class W source AIF1DAC1\n");
507                 source = 0 << WM8995_CP_DYN_SRC_SEL_SHIFT;
508                 break;
509         default:
510                 dev_dbg(component->dev, "DAC mixer setting: %x\n", reg);
511                 enable = 0;
512                 break;
513         }
514 
515         reg_r = snd_soc_component_read32(component, WM8995_DAC1_RIGHT_MIXER_ROUTING);
516         if (reg_r != reg) {
517                 dev_dbg(component->dev, "Left and right DAC mixers different\n");
518                 enable = 0;
519         }
520 
521         if (enable) {
522                 dev_dbg(component->dev, "Class W enabled\n");
523                 snd_soc_component_update_bits(component, WM8995_CLASS_W_1,
524                                     WM8995_CP_DYN_PWR_MASK |
525                                     WM8995_CP_DYN_SRC_SEL_MASK,
526                                     source | WM8995_CP_DYN_PWR);
527         } else {
528                 dev_dbg(component->dev, "Class W disabled\n");
529                 snd_soc_component_update_bits(component, WM8995_CLASS_W_1,
530                                     WM8995_CP_DYN_PWR_MASK, 0);
531         }
532 }
533 
534 static int check_clk_sys(struct snd_soc_dapm_widget *source,
535                          struct snd_soc_dapm_widget *sink)
536 {
537         struct snd_soc_component *component = snd_soc_dapm_to_component(source->dapm);
538         unsigned int reg;
539         const char *clk;
540 
541         reg = snd_soc_component_read32(component, WM8995_CLOCKING_1);
542         /* Check what we're currently using for CLK_SYS */
543         if (reg & WM8995_SYSCLK_SRC)
544                 clk = "AIF2CLK";
545         else
546                 clk = "AIF1CLK";
547         return !strcmp(source->name, clk);
548 }
549 
550 static int wm8995_put_class_w(struct snd_kcontrol *kcontrol,
551                               struct snd_ctl_elem_value *ucontrol)
552 {
553         struct snd_soc_component *component = snd_soc_dapm_kcontrol_component(kcontrol);
554         int ret;
555 
556         ret = snd_soc_dapm_put_volsw(kcontrol, ucontrol);
557         wm8995_update_class_w(component);
558         return ret;
559 }
560 
561 static int hp_supply_event(struct snd_soc_dapm_widget *w,
562                            struct snd_kcontrol *kcontrol, int event)
563 {
564         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
565 
566         switch (event) {
567         case SND_SOC_DAPM_PRE_PMU:
568                 /* Enable the headphone amp */
569                 snd_soc_component_update_bits(component, WM8995_POWER_MANAGEMENT_1,
570                                     WM8995_HPOUT1L_ENA_MASK |
571                                     WM8995_HPOUT1R_ENA_MASK,
572                                     WM8995_HPOUT1L_ENA |
573                                     WM8995_HPOUT1R_ENA);
574 
575                 /* Enable the second stage */
576                 snd_soc_component_update_bits(component, WM8995_ANALOGUE_HP_1,
577                                     WM8995_HPOUT1L_DLY_MASK |
578                                     WM8995_HPOUT1R_DLY_MASK,
579                                     WM8995_HPOUT1L_DLY |
580                                     WM8995_HPOUT1R_DLY);
581                 break;
582         case SND_SOC_DAPM_PRE_PMD:
583                 snd_soc_component_update_bits(component, WM8995_CHARGE_PUMP_1,
584                                     WM8995_CP_ENA_MASK, 0);
585                 break;
586         }
587 
588         return 0;
589 }
590 
591 static void dc_servo_cmd(struct snd_soc_component *component,
592                          unsigned int reg, unsigned int val, unsigned int mask)
593 {
594         int timeout = 10;
595 
596         dev_dbg(component->dev, "%s: reg = %#x, val = %#x, mask = %#x\n",
597                 __func__, reg, val, mask);
598 
599         snd_soc_component_write(component, reg, val);
600         while (timeout--) {
601                 msleep(10);
602                 val = snd_soc_component_read32(component, WM8995_DC_SERVO_READBACK_0);
603                 if ((val & mask) == mask)
604                         return;
605         }
606 
607         dev_err(component->dev, "Timed out waiting for DC Servo\n");
608 }
609 
610 static int hp_event(struct snd_soc_dapm_widget *w,
611                     struct snd_kcontrol *kcontrol, int event)
612 {
613         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
614         unsigned int reg;
615 
616         reg = snd_soc_component_read32(component, WM8995_ANALOGUE_HP_1);
617 
618         switch (event) {
619         case SND_SOC_DAPM_POST_PMU:
620                 snd_soc_component_update_bits(component, WM8995_CHARGE_PUMP_1,
621                                     WM8995_CP_ENA_MASK, WM8995_CP_ENA);
622 
623                 msleep(5);
624 
625                 snd_soc_component_update_bits(component, WM8995_POWER_MANAGEMENT_1,
626                                     WM8995_HPOUT1L_ENA_MASK |
627                                     WM8995_HPOUT1R_ENA_MASK,
628                                     WM8995_HPOUT1L_ENA | WM8995_HPOUT1R_ENA);
629 
630                 udelay(20);
631 
632                 reg |= WM8995_HPOUT1L_DLY | WM8995_HPOUT1R_DLY;
633                 snd_soc_component_write(component, WM8995_ANALOGUE_HP_1, reg);
634 
635                 snd_soc_component_write(component, WM8995_DC_SERVO_1, WM8995_DCS_ENA_CHAN_0 |
636                               WM8995_DCS_ENA_CHAN_1);
637 
638                 dc_servo_cmd(component, WM8995_DC_SERVO_2,
639                              WM8995_DCS_TRIG_STARTUP_0 |
640                              WM8995_DCS_TRIG_STARTUP_1,
641                              WM8995_DCS_TRIG_DAC_WR_0 |
642                              WM8995_DCS_TRIG_DAC_WR_1);
643 
644                 reg |= WM8995_HPOUT1R_OUTP | WM8995_HPOUT1R_RMV_SHORT |
645                        WM8995_HPOUT1L_OUTP | WM8995_HPOUT1L_RMV_SHORT;
646                 snd_soc_component_write(component, WM8995_ANALOGUE_HP_1, reg);
647 
648                 break;
649         case SND_SOC_DAPM_PRE_PMD:
650                 snd_soc_component_update_bits(component, WM8995_ANALOGUE_HP_1,
651                                     WM8995_HPOUT1L_OUTP_MASK |
652                                     WM8995_HPOUT1R_OUTP_MASK |
653                                     WM8995_HPOUT1L_RMV_SHORT_MASK |
654                                     WM8995_HPOUT1R_RMV_SHORT_MASK, 0);
655 
656                 snd_soc_component_update_bits(component, WM8995_ANALOGUE_HP_1,
657                                     WM8995_HPOUT1L_DLY_MASK |
658                                     WM8995_HPOUT1R_DLY_MASK, 0);
659 
660                 snd_soc_component_write(component, WM8995_DC_SERVO_1, 0);
661 
662                 snd_soc_component_update_bits(component, WM8995_POWER_MANAGEMENT_1,
663                                     WM8995_HPOUT1L_ENA_MASK |
664                                     WM8995_HPOUT1R_ENA_MASK,
665                                     0);
666                 break;
667         }
668 
669         return 0;
670 }
671 
672 static int configure_aif_clock(struct snd_soc_component *component, int aif)
673 {
674         struct wm8995_priv *wm8995;
675         int rate;
676         int reg1 = 0;
677         int offset;
678 
679         wm8995 = snd_soc_component_get_drvdata(component);
680 
681         if (aif)
682                 offset = 4;
683         else
684                 offset = 0;
685 
686         switch (wm8995->sysclk[aif]) {
687         case WM8995_SYSCLK_MCLK1:
688                 rate = wm8995->mclk[0];
689                 break;
690         case WM8995_SYSCLK_MCLK2:
691                 reg1 |= 0x8;
692                 rate = wm8995->mclk[1];
693                 break;
694         case WM8995_SYSCLK_FLL1:
695                 reg1 |= 0x10;
696                 rate = wm8995->fll[0].out;
697                 break;
698         case WM8995_SYSCLK_FLL2:
699                 reg1 |= 0x18;
700                 rate = wm8995->fll[1].out;
701                 break;
702         default:
703                 return -EINVAL;
704         }
705 
706         if (rate >= 13500000) {
707                 rate /= 2;
708                 reg1 |= WM8995_AIF1CLK_DIV;
709 
710                 dev_dbg(component->dev, "Dividing AIF%d clock to %dHz\n",
711                         aif + 1, rate);
712         }
713 
714         wm8995->aifclk[aif] = rate;
715 
716         snd_soc_component_update_bits(component, WM8995_AIF1_CLOCKING_1 + offset,
717                             WM8995_AIF1CLK_SRC_MASK | WM8995_AIF1CLK_DIV_MASK,
718                             reg1);
719         return 0;
720 }
721 
722 static int configure_clock(struct snd_soc_component *component)
723 {
724         struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
725         struct wm8995_priv *wm8995;
726         int change, new;
727 
728         wm8995 = snd_soc_component_get_drvdata(component);
729 
730         /* Bring up the AIF clocks first */
731         configure_aif_clock(component, 0);
732         configure_aif_clock(component, 1);
733 
734         /*
735          * Then switch CLK_SYS over to the higher of them; a change
736          * can only happen as a result of a clocking change which can
737          * only be made outside of DAPM so we can safely redo the
738          * clocking.
739          */
740 
741         /* If they're equal it doesn't matter which is used */
742         if (wm8995->aifclk[0] == wm8995->aifclk[1])
743                 return 0;
744 
745         if (wm8995->aifclk[0] < wm8995->aifclk[1])
746                 new = WM8995_SYSCLK_SRC;
747         else
748                 new = 0;
749 
750         change = snd_soc_component_update_bits(component, WM8995_CLOCKING_1,
751                                      WM8995_SYSCLK_SRC_MASK, new);
752         if (!change)
753                 return 0;
754 
755         snd_soc_dapm_sync(dapm);
756 
757         return 0;
758 }
759 
760 static int clk_sys_event(struct snd_soc_dapm_widget *w,
761                          struct snd_kcontrol *kcontrol, int event)
762 {
763         struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
764 
765         switch (event) {
766         case SND_SOC_DAPM_PRE_PMU:
767                 return configure_clock(component);
768 
769         case SND_SOC_DAPM_POST_PMD:
770                 configure_clock(component);
771                 break;
772         }
773 
774         return 0;
775 }
776 
777 static const char *sidetone_text[] = {
778         "ADC/DMIC1", "DMIC2",
779 };
780 
781 static SOC_ENUM_SINGLE_DECL(sidetone1_enum, WM8995_SIDETONE, 0, sidetone_text);
782 
783 static const struct snd_kcontrol_new sidetone1_mux =
784         SOC_DAPM_ENUM("Left Sidetone Mux", sidetone1_enum);
785 
786 static SOC_ENUM_SINGLE_DECL(sidetone2_enum, WM8995_SIDETONE, 1, sidetone_text);
787 
788 static const struct snd_kcontrol_new sidetone2_mux =
789         SOC_DAPM_ENUM("Right Sidetone Mux", sidetone2_enum);
790 
791 static const struct snd_kcontrol_new aif1adc1l_mix[] = {
792         SOC_DAPM_SINGLE("ADC/DMIC Switch", WM8995_AIF1_ADC1_LEFT_MIXER_ROUTING,
793                 1, 1, 0),
794         SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC1_LEFT_MIXER_ROUTING,
795                 0, 1, 0),
796 };
797 
798 static const struct snd_kcontrol_new aif1adc1r_mix[] = {
799         SOC_DAPM_SINGLE("ADC/DMIC Switch", WM8995_AIF1_ADC1_RIGHT_MIXER_ROUTING,
800                 1, 1, 0),
801         SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC1_RIGHT_MIXER_ROUTING,
802                 0, 1, 0),
803 };
804 
805 static const struct snd_kcontrol_new aif1adc2l_mix[] = {
806         SOC_DAPM_SINGLE("DMIC Switch", WM8995_AIF1_ADC2_LEFT_MIXER_ROUTING,
807                 1, 1, 0),
808         SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC2_LEFT_MIXER_ROUTING,
809                 0, 1, 0),
810 };
811 
812 static const struct snd_kcontrol_new aif1adc2r_mix[] = {
813         SOC_DAPM_SINGLE("DMIC Switch", WM8995_AIF1_ADC2_RIGHT_MIXER_ROUTING,
814                 1, 1, 0),
815         SOC_DAPM_SINGLE("AIF2 Switch", WM8995_AIF1_ADC2_RIGHT_MIXER_ROUTING,
816                 0, 1, 0),
817 };
818 
819 static const struct snd_kcontrol_new dac1l_mix[] = {
820         WM8995_CLASS_W_SWITCH("Right Sidetone Switch", WM8995_DAC1_LEFT_MIXER_ROUTING,
821                 5, 1, 0),
822         WM8995_CLASS_W_SWITCH("Left Sidetone Switch", WM8995_DAC1_LEFT_MIXER_ROUTING,
823                 4, 1, 0),
824         WM8995_CLASS_W_SWITCH("AIF2 Switch", WM8995_DAC1_LEFT_MIXER_ROUTING,
825                 2, 1, 0),
826         WM8995_CLASS_W_SWITCH("AIF1.2 Switch", WM8995_DAC1_LEFT_MIXER_ROUTING,
827                 1, 1, 0),
828         WM8995_CLASS_W_SWITCH("AIF1.1 Switch", WM8995_DAC1_LEFT_MIXER_ROUTING,
829                 0, 1, 0),
830 };
831 
832 static const struct snd_kcontrol_new dac1r_mix[] = {
833         WM8995_CLASS_W_SWITCH("Right Sidetone Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING,
834                 5, 1, 0),
835         WM8995_CLASS_W_SWITCH("Left Sidetone Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING,
836                 4, 1, 0),
837         WM8995_CLASS_W_SWITCH("AIF2 Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING,
838                 2, 1, 0),
839         WM8995_CLASS_W_SWITCH("AIF1.2 Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING,
840                 1, 1, 0),
841         WM8995_CLASS_W_SWITCH("AIF1.1 Switch", WM8995_DAC1_RIGHT_MIXER_ROUTING,
842                 0, 1, 0),
843 };
844 
845 static const struct snd_kcontrol_new aif2dac2l_mix[] = {
846         SOC_DAPM_SINGLE("Right Sidetone Switch", WM8995_DAC2_LEFT_MIXER_ROUTING,
847                 5, 1, 0),
848         SOC_DAPM_SINGLE("Left Sidetone Switch", WM8995_DAC2_LEFT_MIXER_ROUTING,
849                 4, 1, 0),
850         SOC_DAPM_SINGLE("AIF2 Switch", WM8995_DAC2_LEFT_MIXER_ROUTING,
851                 2, 1, 0),
852         SOC_DAPM_SINGLE("AIF1.2 Switch", WM8995_DAC2_LEFT_MIXER_ROUTING,
853                 1, 1, 0),
854         SOC_DAPM_SINGLE("AIF1.1 Switch", WM8995_DAC2_LEFT_MIXER_ROUTING,
855                 0, 1, 0),
856 };
857 
858 static const struct snd_kcontrol_new aif2dac2r_mix[] = {
859         SOC_DAPM_SINGLE("Right Sidetone Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING,
860                 5, 1, 0),
861         SOC_DAPM_SINGLE("Left Sidetone Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING,
862                 4, 1, 0),
863         SOC_DAPM_SINGLE("AIF2 Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING,
864                 2, 1, 0),
865         SOC_DAPM_SINGLE("AIF1.2 Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING,
866                 1, 1, 0),
867         SOC_DAPM_SINGLE("AIF1.1 Switch", WM8995_DAC2_RIGHT_MIXER_ROUTING,
868                 0, 1, 0),
869 };
870 
871 static const struct snd_kcontrol_new in1l_pga =
872         SOC_DAPM_SINGLE("IN1L Switch", WM8995_POWER_MANAGEMENT_2, 5, 1, 0);
873 
874 static const struct snd_kcontrol_new in1r_pga =
875         SOC_DAPM_SINGLE("IN1R Switch", WM8995_POWER_MANAGEMENT_2, 4, 1, 0);
876 
877 static const char *adc_mux_text[] = {
878         "ADC",
879         "DMIC",
880 };
881 
882 static SOC_ENUM_SINGLE_VIRT_DECL(adc_enum, adc_mux_text);
883 
884 static const struct snd_kcontrol_new adcl_mux =
885         SOC_DAPM_ENUM("ADCL Mux", adc_enum);
886 
887 static const struct snd_kcontrol_new adcr_mux =
888         SOC_DAPM_ENUM("ADCR Mux", adc_enum);
889 
890 static const char *spk_src_text[] = {
891         "DAC1L", "DAC1R", "DAC2L", "DAC2R"
892 };
893 
894 static SOC_ENUM_SINGLE_DECL(spk1l_src_enum, WM8995_LEFT_PDM_SPEAKER_1,
895                             0, spk_src_text);
896 static SOC_ENUM_SINGLE_DECL(spk1r_src_enum, WM8995_RIGHT_PDM_SPEAKER_1,
897                             0, spk_src_text);
898 static SOC_ENUM_SINGLE_DECL(spk2l_src_enum, WM8995_LEFT_PDM_SPEAKER_2,
899                             0, spk_src_text);
900 static SOC_ENUM_SINGLE_DECL(spk2r_src_enum, WM8995_RIGHT_PDM_SPEAKER_2,
901                             0, spk_src_text);
902 
903 static const struct snd_kcontrol_new spk1l_mux =
904         SOC_DAPM_ENUM("SPK1L SRC", spk1l_src_enum);
905 static const struct snd_kcontrol_new spk1r_mux =
906         SOC_DAPM_ENUM("SPK1R SRC", spk1r_src_enum);
907 static const struct snd_kcontrol_new spk2l_mux =
908         SOC_DAPM_ENUM("SPK2L SRC", spk2l_src_enum);
909 static const struct snd_kcontrol_new spk2r_mux =
910         SOC_DAPM_ENUM("SPK2R SRC", spk2r_src_enum);
911 
912 static const struct snd_soc_dapm_widget wm8995_dapm_widgets[] = {
913         SND_SOC_DAPM_INPUT("DMIC1DAT"),
914         SND_SOC_DAPM_INPUT("DMIC2DAT"),
915 
916         SND_SOC_DAPM_INPUT("IN1L"),
917         SND_SOC_DAPM_INPUT("IN1R"),
918 
919         SND_SOC_DAPM_MIXER("IN1L PGA", SND_SOC_NOPM, 0, 0,
920                 &in1l_pga, 1),
921         SND_SOC_DAPM_MIXER("IN1R PGA", SND_SOC_NOPM, 0, 0,
922                 &in1r_pga, 1),
923 
924         SND_SOC_DAPM_SUPPLY("MICBIAS1", WM8995_POWER_MANAGEMENT_1, 8, 0,
925                             NULL, 0),
926         SND_SOC_DAPM_SUPPLY("MICBIAS2", WM8995_POWER_MANAGEMENT_1, 9, 0,
927                             NULL, 0),
928 
929         SND_SOC_DAPM_SUPPLY("AIF1CLK", WM8995_AIF1_CLOCKING_1, 0, 0, NULL, 0),
930         SND_SOC_DAPM_SUPPLY("AIF2CLK", WM8995_AIF2_CLOCKING_1, 0, 0, NULL, 0),
931         SND_SOC_DAPM_SUPPLY("DSP1CLK", WM8995_CLOCKING_1, 3, 0, NULL, 0),
932         SND_SOC_DAPM_SUPPLY("DSP2CLK", WM8995_CLOCKING_1, 2, 0, NULL, 0),
933         SND_SOC_DAPM_SUPPLY("SYSDSPCLK", WM8995_CLOCKING_1, 1, 0, NULL, 0),
934         SND_SOC_DAPM_SUPPLY("CLK_SYS", SND_SOC_NOPM, 0, 0, clk_sys_event,
935                 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
936 
937         SND_SOC_DAPM_AIF_OUT("AIF1ADC1L", "AIF1 Capture", 0,
938                 WM8995_POWER_MANAGEMENT_3, 9, 0),
939         SND_SOC_DAPM_AIF_OUT("AIF1ADC1R", "AIF1 Capture", 0,
940                 WM8995_POWER_MANAGEMENT_3, 8, 0),
941         SND_SOC_DAPM_AIF_OUT("AIF1ADCDAT", "AIF1 Capture", 0,
942         SND_SOC_NOPM, 0, 0),
943         SND_SOC_DAPM_AIF_OUT("AIF1ADC2L", "AIF1 Capture",
944                 0, WM8995_POWER_MANAGEMENT_3, 11, 0),
945         SND_SOC_DAPM_AIF_OUT("AIF1ADC2R", "AIF1 Capture",
946                 0, WM8995_POWER_MANAGEMENT_3, 10, 0),
947 
948         SND_SOC_DAPM_MUX("ADCL Mux", SND_SOC_NOPM, 1, 0, &adcl_mux),
949         SND_SOC_DAPM_MUX("ADCR Mux", SND_SOC_NOPM, 0, 0, &adcr_mux),
950 
951         SND_SOC_DAPM_ADC("DMIC2L", NULL, WM8995_POWER_MANAGEMENT_3, 5, 0),
952         SND_SOC_DAPM_ADC("DMIC2R", NULL, WM8995_POWER_MANAGEMENT_3, 4, 0),
953         SND_SOC_DAPM_ADC("DMIC1L", NULL, WM8995_POWER_MANAGEMENT_3, 3, 0),
954         SND_SOC_DAPM_ADC("DMIC1R", NULL, WM8995_POWER_MANAGEMENT_3, 2, 0),
955 
956         SND_SOC_DAPM_ADC("ADCL", NULL, WM8995_POWER_MANAGEMENT_3, 1, 0),
957         SND_SOC_DAPM_ADC("ADCR", NULL, WM8995_POWER_MANAGEMENT_3, 0, 0),
958 
959         SND_SOC_DAPM_MIXER("AIF1ADC1L Mixer", SND_SOC_NOPM, 0, 0,
960                 aif1adc1l_mix, ARRAY_SIZE(aif1adc1l_mix)),
961         SND_SOC_DAPM_MIXER("AIF1ADC1R Mixer", SND_SOC_NOPM, 0, 0,
962                 aif1adc1r_mix, ARRAY_SIZE(aif1adc1r_mix)),
963         SND_SOC_DAPM_MIXER("AIF1ADC2L Mixer", SND_SOC_NOPM, 0, 0,
964                 aif1adc2l_mix, ARRAY_SIZE(aif1adc2l_mix)),
965         SND_SOC_DAPM_MIXER("AIF1ADC2R Mixer", SND_SOC_NOPM, 0, 0,
966                 aif1adc2r_mix, ARRAY_SIZE(aif1adc2r_mix)),
967 
968         SND_SOC_DAPM_AIF_IN("AIF1DAC1L", NULL, 0, WM8995_POWER_MANAGEMENT_4,
969                 9, 0),
970         SND_SOC_DAPM_AIF_IN("AIF1DAC1R", NULL, 0, WM8995_POWER_MANAGEMENT_4,
971                 8, 0),
972         SND_SOC_DAPM_AIF_IN("AIF1DACDAT", "AIF1 Playback", 0, SND_SOC_NOPM,
973                 0, 0),
974 
975         SND_SOC_DAPM_AIF_IN("AIF1DAC2L", NULL, 0, WM8995_POWER_MANAGEMENT_4,
976                 11, 0),
977         SND_SOC_DAPM_AIF_IN("AIF1DAC2R", NULL, 0, WM8995_POWER_MANAGEMENT_4,
978                 10, 0),
979 
980         SND_SOC_DAPM_MIXER("AIF2DAC2L Mixer", SND_SOC_NOPM, 0, 0,
981                 aif2dac2l_mix, ARRAY_SIZE(aif2dac2l_mix)),
982         SND_SOC_DAPM_MIXER("AIF2DAC2R Mixer", SND_SOC_NOPM, 0, 0,
983                 aif2dac2r_mix, ARRAY_SIZE(aif2dac2r_mix)),
984 
985         SND_SOC_DAPM_DAC("DAC2L", NULL, WM8995_POWER_MANAGEMENT_4, 3, 0),
986         SND_SOC_DAPM_DAC("DAC2R", NULL, WM8995_POWER_MANAGEMENT_4, 2, 0),
987         SND_SOC_DAPM_DAC("DAC1L", NULL, WM8995_POWER_MANAGEMENT_4, 1, 0),
988         SND_SOC_DAPM_DAC("DAC1R", NULL, WM8995_POWER_MANAGEMENT_4, 0, 0),
989 
990         SND_SOC_DAPM_MIXER("DAC1L Mixer", SND_SOC_NOPM, 0, 0, dac1l_mix,
991                 ARRAY_SIZE(dac1l_mix)),
992         SND_SOC_DAPM_MIXER("DAC1R Mixer", SND_SOC_NOPM, 0, 0, dac1r_mix,
993                 ARRAY_SIZE(dac1r_mix)),
994 
995         SND_SOC_DAPM_MUX("Left Sidetone", SND_SOC_NOPM, 0, 0, &sidetone1_mux),
996         SND_SOC_DAPM_MUX("Right Sidetone", SND_SOC_NOPM, 0, 0, &sidetone2_mux),
997 
998         SND_SOC_DAPM_PGA_E("Headphone PGA", SND_SOC_NOPM, 0, 0, NULL, 0,
999                 hp_event, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
1000 
1001         SND_SOC_DAPM_SUPPLY("Headphone Supply", SND_SOC_NOPM, 0, 0,
1002                 hp_supply_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_PRE_PMD),
1003 
1004         SND_SOC_DAPM_MUX("SPK1L Driver", WM8995_LEFT_PDM_SPEAKER_1,
1005                 4, 0, &spk1l_mux),
1006         SND_SOC_DAPM_MUX("SPK1R Driver", WM8995_RIGHT_PDM_SPEAKER_1,
1007                 4, 0, &spk1r_mux),
1008         SND_SOC_DAPM_MUX("SPK2L Driver", WM8995_LEFT_PDM_SPEAKER_2,
1009                 4, 0, &spk2l_mux),
1010         SND_SOC_DAPM_MUX("SPK2R Driver", WM8995_RIGHT_PDM_SPEAKER_2,
1011                 4, 0, &spk2r_mux),
1012 
1013         SND_SOC_DAPM_SUPPLY("LDO2", WM8995_POWER_MANAGEMENT_2, 1, 0, NULL, 0),
1014 
1015         SND_SOC_DAPM_OUTPUT("HP1L"),
1016         SND_SOC_DAPM_OUTPUT("HP1R"),
1017         SND_SOC_DAPM_OUTPUT("SPK1L"),
1018         SND_SOC_DAPM_OUTPUT("SPK1R"),
1019         SND_SOC_DAPM_OUTPUT("SPK2L"),
1020         SND_SOC_DAPM_OUTPUT("SPK2R")
1021 };
1022 
1023 static const struct snd_soc_dapm_route wm8995_intercon[] = {
1024         { "CLK_SYS", NULL, "AIF1CLK", check_clk_sys },
1025         { "CLK_SYS", NULL, "AIF2CLK", check_clk_sys },
1026 
1027         { "DSP1CLK", NULL, "CLK_SYS" },
1028         { "DSP2CLK", NULL, "CLK_SYS" },
1029         { "SYSDSPCLK", NULL, "CLK_SYS" },
1030 
1031         { "AIF1ADC1L", NULL, "AIF1CLK" },
1032         { "AIF1ADC1L", NULL, "DSP1CLK" },
1033         { "AIF1ADC1R", NULL, "AIF1CLK" },
1034         { "AIF1ADC1R", NULL, "DSP1CLK" },
1035         { "AIF1ADC1R", NULL, "SYSDSPCLK" },
1036 
1037         { "AIF1ADC2L", NULL, "AIF1CLK" },
1038         { "AIF1ADC2L", NULL, "DSP1CLK" },
1039         { "AIF1ADC2R", NULL, "AIF1CLK" },
1040         { "AIF1ADC2R", NULL, "DSP1CLK" },
1041         { "AIF1ADC2R", NULL, "SYSDSPCLK" },
1042 
1043         { "DMIC1L", NULL, "DMIC1DAT" },
1044         { "DMIC1L", NULL, "CLK_SYS" },
1045         { "DMIC1R", NULL, "DMIC1DAT" },
1046         { "DMIC1R", NULL, "CLK_SYS" },
1047         { "DMIC2L", NULL, "DMIC2DAT" },
1048         { "DMIC2L", NULL, "CLK_SYS" },
1049         { "DMIC2R", NULL, "DMIC2DAT" },
1050         { "DMIC2R", NULL, "CLK_SYS" },
1051 
1052         { "ADCL", NULL, "AIF1CLK" },
1053         { "ADCL", NULL, "DSP1CLK" },
1054         { "ADCL", NULL, "SYSDSPCLK" },
1055 
1056         { "ADCR", NULL, "AIF1CLK" },
1057         { "ADCR", NULL, "DSP1CLK" },
1058         { "ADCR", NULL, "SYSDSPCLK" },
1059 
1060         { "IN1L PGA", "IN1L Switch", "IN1L" },
1061         { "IN1R PGA", "IN1R Switch", "IN1R" },
1062         { "IN1L PGA", NULL, "LDO2" },
1063         { "IN1R PGA", NULL, "LDO2" },
1064 
1065         { "ADCL", NULL, "IN1L PGA" },
1066         { "ADCR", NULL, "IN1R PGA" },
1067 
1068         { "ADCL Mux", "ADC", "ADCL" },
1069         { "ADCL Mux", "DMIC", "DMIC1L" },
1070         { "ADCR Mux", "ADC", "ADCR" },
1071         { "ADCR Mux", "DMIC", "DMIC1R" },
1072 
1073         /* AIF1 outputs */
1074         { "AIF1ADC1L", NULL, "AIF1ADC1L Mixer" },
1075         { "AIF1ADC1L Mixer", "ADC/DMIC Switch", "ADCL Mux" },
1076 
1077         { "AIF1ADC1R", NULL, "AIF1ADC1R Mixer" },
1078         { "AIF1ADC1R Mixer", "ADC/DMIC Switch", "ADCR Mux" },
1079 
1080         { "AIF1ADC2L", NULL, "AIF1ADC2L Mixer" },
1081         { "AIF1ADC2L Mixer", "DMIC Switch", "DMIC2L" },
1082 
1083         { "AIF1ADC2R", NULL, "AIF1ADC2R Mixer" },
1084         { "AIF1ADC2R Mixer", "DMIC Switch", "DMIC2R" },
1085 
1086         /* Sidetone */
1087         { "Left Sidetone", "ADC/DMIC1", "AIF1ADC1L" },
1088         { "Left Sidetone", "DMIC2", "AIF1ADC2L" },
1089         { "Right Sidetone", "ADC/DMIC1", "AIF1ADC1R" },
1090         { "Right Sidetone", "DMIC2", "AIF1ADC2R" },
1091 
1092         { "AIF1DAC1L", NULL, "AIF1CLK" },
1093         { "AIF1DAC1L", NULL, "DSP1CLK" },
1094         { "AIF1DAC1R", NULL, "AIF1CLK" },
1095         { "AIF1DAC1R", NULL, "DSP1CLK" },
1096         { "AIF1DAC1R", NULL, "SYSDSPCLK" },
1097 
1098         { "AIF1DAC2L", NULL, "AIF1CLK" },
1099         { "AIF1DAC2L", NULL, "DSP1CLK" },
1100         { "AIF1DAC2R", NULL, "AIF1CLK" },
1101         { "AIF1DAC2R", NULL, "DSP1CLK" },
1102         { "AIF1DAC2R", NULL, "SYSDSPCLK" },
1103 
1104         { "DAC1L", NULL, "AIF1CLK" },
1105         { "DAC1L", NULL, "DSP1CLK" },
1106         { "DAC1L", NULL, "SYSDSPCLK" },
1107 
1108         { "DAC1R", NULL, "AIF1CLK" },
1109         { "DAC1R", NULL, "DSP1CLK" },
1110         { "DAC1R", NULL, "SYSDSPCLK" },
1111 
1112         { "AIF1DAC1L", NULL, "AIF1DACDAT" },
1113         { "AIF1DAC1R", NULL, "AIF1DACDAT" },
1114         { "AIF1DAC2L", NULL, "AIF1DACDAT" },
1115         { "AIF1DAC2R", NULL, "AIF1DACDAT" },
1116 
1117         /* DAC1 inputs */
1118         { "DAC1L", NULL, "DAC1L Mixer" },
1119         { "DAC1L Mixer", "AIF1.1 Switch", "AIF1DAC1L" },
1120         { "DAC1L Mixer", "AIF1.2 Switch", "AIF1DAC2L" },
1121         { "DAC1L Mixer", "Left Sidetone Switch", "Left Sidetone" },
1122         { "DAC1L Mixer", "Right Sidetone Switch", "Right Sidetone" },
1123 
1124         { "DAC1R", NULL, "DAC1R Mixer" },
1125         { "DAC1R Mixer", "AIF1.1 Switch", "AIF1DAC1R" },
1126         { "DAC1R Mixer", "AIF1.2 Switch", "AIF1DAC2R" },
1127         { "DAC1R Mixer", "Left Sidetone Switch", "Left Sidetone" },
1128         { "DAC1R Mixer", "Right Sidetone Switch", "Right Sidetone" },
1129 
1130         /* DAC2/AIF2 outputs */
1131         { "DAC2L", NULL, "AIF2DAC2L Mixer" },
1132         { "AIF2DAC2L Mixer", "AIF1.2 Switch", "AIF1DAC2L" },
1133         { "AIF2DAC2L Mixer", "AIF1.1 Switch", "AIF1DAC1L" },
1134 
1135         { "DAC2R", NULL, "AIF2DAC2R Mixer" },
1136         { "AIF2DAC2R Mixer", "AIF1.2 Switch", "AIF1DAC2R" },
1137         { "AIF2DAC2R Mixer", "AIF1.1 Switch", "AIF1DAC1R" },
1138 
1139         /* Output stages */
1140         { "Headphone PGA", NULL, "DAC1L" },
1141         { "Headphone PGA", NULL, "DAC1R" },
1142 
1143         { "Headphone PGA", NULL, "DAC2L" },
1144         { "Headphone PGA", NULL, "DAC2R" },
1145 
1146         { "Headphone PGA", NULL, "Headphone Supply" },
1147         { "Headphone PGA", NULL, "CLK_SYS" },
1148         { "Headphone PGA", NULL, "LDO2" },
1149 
1150         { "HP1L", NULL, "Headphone PGA" },
1151         { "HP1R", NULL, "Headphone PGA" },
1152 
1153         { "SPK1L Driver", "DAC1L", "DAC1L" },
1154         { "SPK1L Driver", "DAC1R", "DAC1R" },
1155         { "SPK1L Driver", "DAC2L", "DAC2L" },
1156         { "SPK1L Driver", "DAC2R", "DAC2R" },
1157         { "SPK1L Driver", NULL, "CLK_SYS" },
1158 
1159         { "SPK1R Driver", "DAC1L", "DAC1L" },
1160         { "SPK1R Driver", "DAC1R", "DAC1R" },
1161         { "SPK1R Driver", "DAC2L", "DAC2L" },
1162         { "SPK1R Driver", "DAC2R", "DAC2R" },
1163         { "SPK1R Driver", NULL, "CLK_SYS" },
1164 
1165         { "SPK2L Driver", "DAC1L", "DAC1L" },
1166         { "SPK2L Driver", "DAC1R", "DAC1R" },
1167         { "SPK2L Driver", "DAC2L", "DAC2L" },
1168         { "SPK2L Driver", "DAC2R", "DAC2R" },
1169         { "SPK2L Driver", NULL, "CLK_SYS" },
1170 
1171         { "SPK2R Driver", "DAC1L", "DAC1L" },
1172         { "SPK2R Driver", "DAC1R", "DAC1R" },
1173         { "SPK2R Driver", "DAC2L", "DAC2L" },
1174         { "SPK2R Driver", "DAC2R", "DAC2R" },
1175         { "SPK2R Driver", NULL, "CLK_SYS" },
1176 
1177         { "SPK1L", NULL, "SPK1L Driver" },
1178         { "SPK1R", NULL, "SPK1R Driver" },
1179         { "SPK2L", NULL, "SPK2L Driver" },
1180         { "SPK2R", NULL, "SPK2R Driver" }
1181 };
1182 
1183 static bool wm8995_readable(struct device *dev, unsigned int reg)
1184 {
1185         switch (reg) {
1186         case WM8995_SOFTWARE_RESET:
1187         case WM8995_POWER_MANAGEMENT_1:
1188         case WM8995_POWER_MANAGEMENT_2:
1189         case WM8995_POWER_MANAGEMENT_3:
1190         case WM8995_POWER_MANAGEMENT_4:
1191         case WM8995_POWER_MANAGEMENT_5:
1192         case WM8995_LEFT_LINE_INPUT_1_VOLUME:
1193         case WM8995_RIGHT_LINE_INPUT_1_VOLUME:
1194         case WM8995_LEFT_LINE_INPUT_CONTROL:
1195         case WM8995_DAC1_LEFT_VOLUME:
1196         case WM8995_DAC1_RIGHT_VOLUME:
1197         case WM8995_DAC2_LEFT_VOLUME:
1198         case WM8995_DAC2_RIGHT_VOLUME:
1199         case WM8995_OUTPUT_VOLUME_ZC_1:
1200         case WM8995_MICBIAS_1:
1201         case WM8995_MICBIAS_2:
1202         case WM8995_LDO_1:
1203         case WM8995_LDO_2:
1204         case WM8995_ACCESSORY_DETECT_MODE1:
1205         case WM8995_ACCESSORY_DETECT_MODE2:
1206         case WM8995_HEADPHONE_DETECT1:
1207         case WM8995_HEADPHONE_DETECT2:
1208         case WM8995_MIC_DETECT_1:
1209         case WM8995_MIC_DETECT_2:
1210         case WM8995_CHARGE_PUMP_1:
1211         case WM8995_CLASS_W_1:
1212         case WM8995_DC_SERVO_1:
1213         case WM8995_DC_SERVO_2:
1214         case WM8995_DC_SERVO_3:
1215         case WM8995_DC_SERVO_5:
1216         case WM8995_DC_SERVO_6:
1217         case WM8995_DC_SERVO_7:
1218         case WM8995_DC_SERVO_READBACK_0:
1219         case WM8995_ANALOGUE_HP_1:
1220         case WM8995_ANALOGUE_HP_2:
1221         case WM8995_CHIP_REVISION:
1222         case WM8995_CONTROL_INTERFACE_1:
1223         case WM8995_CONTROL_INTERFACE_2:
1224         case WM8995_WRITE_SEQUENCER_CTRL_1:
1225         case WM8995_WRITE_SEQUENCER_CTRL_2:
1226         case WM8995_AIF1_CLOCKING_1:
1227         case WM8995_AIF1_CLOCKING_2:
1228         case WM8995_AIF2_CLOCKING_1:
1229         case WM8995_AIF2_CLOCKING_2:
1230         case WM8995_CLOCKING_1:
1231         case WM8995_CLOCKING_2:
1232         case WM8995_AIF1_RATE:
1233         case WM8995_AIF2_RATE:
1234         case WM8995_RATE_STATUS:
1235         case WM8995_FLL1_CONTROL_1:
1236         case WM8995_FLL1_CONTROL_2:
1237         case WM8995_FLL1_CONTROL_3:
1238         case WM8995_FLL1_CONTROL_4:
1239         case WM8995_FLL1_CONTROL_5:
1240         case WM8995_FLL2_CONTROL_1:
1241         case WM8995_FLL2_CONTROL_2:
1242         case WM8995_FLL2_CONTROL_3:
1243         case WM8995_FLL2_CONTROL_4:
1244         case WM8995_FLL2_CONTROL_5:
1245         case WM8995_AIF1_CONTROL_1:
1246         case WM8995_AIF1_CONTROL_2:
1247         case WM8995_AIF1_MASTER_SLAVE:
1248         case WM8995_AIF1_BCLK:
1249         case WM8995_AIF1ADC_LRCLK:
1250         case WM8995_AIF1DAC_LRCLK:
1251         case WM8995_AIF1DAC_DATA:
1252         case WM8995_AIF1ADC_DATA:
1253         case WM8995_AIF2_CONTROL_1:
1254         case WM8995_AIF2_CONTROL_2:
1255         case WM8995_AIF2_MASTER_SLAVE:
1256         case WM8995_AIF2_BCLK:
1257         case WM8995_AIF2ADC_LRCLK:
1258         case WM8995_AIF2DAC_LRCLK:
1259         case WM8995_AIF2DAC_DATA:
1260         case WM8995_AIF2ADC_DATA:
1261         case WM8995_AIF1_ADC1_LEFT_VOLUME:
1262         case WM8995_AIF1_ADC1_RIGHT_VOLUME:
1263         case WM8995_AIF1_DAC1_LEFT_VOLUME:
1264         case WM8995_AIF1_DAC1_RIGHT_VOLUME:
1265         case WM8995_AIF1_ADC2_LEFT_VOLUME:
1266         case WM8995_AIF1_ADC2_RIGHT_VOLUME:
1267         case WM8995_AIF1_DAC2_LEFT_VOLUME:
1268         case WM8995_AIF1_DAC2_RIGHT_VOLUME:
1269         case WM8995_AIF1_ADC1_FILTERS:
1270         case WM8995_AIF1_ADC2_FILTERS:
1271         case WM8995_AIF1_DAC1_FILTERS_1:
1272         case WM8995_AIF1_DAC1_FILTERS_2:
1273         case WM8995_AIF1_DAC2_FILTERS_1:
1274         case WM8995_AIF1_DAC2_FILTERS_2:
1275         case WM8995_AIF1_DRC1_1:
1276         case WM8995_AIF1_DRC1_2:
1277         case WM8995_AIF1_DRC1_3:
1278         case WM8995_AIF1_DRC1_4:
1279         case WM8995_AIF1_DRC1_5:
1280         case WM8995_AIF1_DRC2_1:
1281         case WM8995_AIF1_DRC2_2:
1282         case WM8995_AIF1_DRC2_3:
1283         case WM8995_AIF1_DRC2_4:
1284         case WM8995_AIF1_DRC2_5:
1285         case WM8995_AIF1_DAC1_EQ_GAINS_1:
1286         case WM8995_AIF1_DAC1_EQ_GAINS_2:
1287         case WM8995_AIF1_DAC1_EQ_BAND_1_A:
1288         case WM8995_AIF1_DAC1_EQ_BAND_1_B:
1289         case WM8995_AIF1_DAC1_EQ_BAND_1_PG:
1290         case WM8995_AIF1_DAC1_EQ_BAND_2_A:
1291         case WM8995_AIF1_DAC1_EQ_BAND_2_B:
1292         case WM8995_AIF1_DAC1_EQ_BAND_2_C:
1293         case WM8995_AIF1_DAC1_EQ_BAND_2_PG:
1294         case WM8995_AIF1_DAC1_EQ_BAND_3_A:
1295         case WM8995_AIF1_DAC1_EQ_BAND_3_B:
1296         case WM8995_AIF1_DAC1_EQ_BAND_3_C:
1297         case WM8995_AIF1_DAC1_EQ_BAND_3_PG:
1298         case WM8995_AIF1_DAC1_EQ_BAND_4_A:
1299         case WM8995_AIF1_DAC1_EQ_BAND_4_B:
1300         case WM8995_AIF1_DAC1_EQ_BAND_4_C:
1301         case WM8995_AIF1_DAC1_EQ_BAND_4_PG:
1302         case WM8995_AIF1_DAC1_EQ_BAND_5_A:
1303         case WM8995_AIF1_DAC1_EQ_BAND_5_B:
1304         case WM8995_AIF1_DAC1_EQ_BAND_5_PG:
1305         case WM8995_AIF1_DAC2_EQ_GAINS_1:
1306         case WM8995_AIF1_DAC2_EQ_GAINS_2:
1307         case WM8995_AIF1_DAC2_EQ_BAND_1_A:
1308         case WM8995_AIF1_DAC2_EQ_BAND_1_B:
1309         case WM8995_AIF1_DAC2_EQ_BAND_1_PG:
1310         case WM8995_AIF1_DAC2_EQ_BAND_2_A:
1311         case WM8995_AIF1_DAC2_EQ_BAND_2_B:
1312         case WM8995_AIF1_DAC2_EQ_BAND_2_C:
1313         case WM8995_AIF1_DAC2_EQ_BAND_2_PG:
1314         case WM8995_AIF1_DAC2_EQ_BAND_3_A:
1315         case WM8995_AIF1_DAC2_EQ_BAND_3_B:
1316         case WM8995_AIF1_DAC2_EQ_BAND_3_C:
1317         case WM8995_AIF1_DAC2_EQ_BAND_3_PG:
1318         case WM8995_AIF1_DAC2_EQ_BAND_4_A:
1319         case WM8995_AIF1_DAC2_EQ_BAND_4_B:
1320         case WM8995_AIF1_DAC2_EQ_BAND_4_C:
1321         case WM8995_AIF1_DAC2_EQ_BAND_4_PG:
1322         case WM8995_AIF1_DAC2_EQ_BAND_5_A:
1323         case WM8995_AIF1_DAC2_EQ_BAND_5_B:
1324         case WM8995_AIF1_DAC2_EQ_BAND_5_PG:
1325         case WM8995_AIF2_ADC_LEFT_VOLUME:
1326         case WM8995_AIF2_ADC_RIGHT_VOLUME:
1327         case WM8995_AIF2_DAC_LEFT_VOLUME:
1328         case WM8995_AIF2_DAC_RIGHT_VOLUME:
1329         case WM8995_AIF2_ADC_FILTERS:
1330         case WM8995_AIF2_DAC_FILTERS_1:
1331         case WM8995_AIF2_DAC_FILTERS_2:
1332         case WM8995_AIF2_DRC_1:
1333         case WM8995_AIF2_DRC_2:
1334         case WM8995_AIF2_DRC_3:
1335         case WM8995_AIF2_DRC_4:
1336         case WM8995_AIF2_DRC_5:
1337         case WM8995_AIF2_EQ_GAINS_1:
1338         case WM8995_AIF2_EQ_GAINS_2:
1339         case WM8995_AIF2_EQ_BAND_1_A:
1340         case WM8995_AIF2_EQ_BAND_1_B:
1341         case WM8995_AIF2_EQ_BAND_1_PG:
1342         case WM8995_AIF2_EQ_BAND_2_A:
1343         case WM8995_AIF2_EQ_BAND_2_B:
1344         case WM8995_AIF2_EQ_BAND_2_C:
1345         case WM8995_AIF2_EQ_BAND_2_PG:
1346         case WM8995_AIF2_EQ_BAND_3_A:
1347         case WM8995_AIF2_EQ_BAND_3_B:
1348         case WM8995_AIF2_EQ_BAND_3_C:
1349         case WM8995_AIF2_EQ_BAND_3_PG:
1350         case WM8995_AIF2_EQ_BAND_4_A:
1351         case WM8995_AIF2_EQ_BAND_4_B:
1352         case WM8995_AIF2_EQ_BAND_4_C:
1353         case WM8995_AIF2_EQ_BAND_4_PG:
1354         case WM8995_AIF2_EQ_BAND_5_A:
1355         case WM8995_AIF2_EQ_BAND_5_B:
1356         case WM8995_AIF2_EQ_BAND_5_PG:
1357         case WM8995_DAC1_MIXER_VOLUMES:
1358         case WM8995_DAC1_LEFT_MIXER_ROUTING:
1359         case WM8995_DAC1_RIGHT_MIXER_ROUTING:
1360         case WM8995_DAC2_MIXER_VOLUMES:
1361         case WM8995_DAC2_LEFT_MIXER_ROUTING:
1362         case WM8995_DAC2_RIGHT_MIXER_ROUTING:
1363         case WM8995_AIF1_ADC1_LEFT_MIXER_ROUTING:
1364         case WM8995_AIF1_ADC1_RIGHT_MIXER_ROUTING:
1365         case WM8995_AIF1_ADC2_LEFT_MIXER_ROUTING:
1366         case WM8995_AIF1_ADC2_RIGHT_MIXER_ROUTING:
1367         case WM8995_DAC_SOFTMUTE:
1368         case WM8995_OVERSAMPLING:
1369         case WM8995_SIDETONE:
1370         case WM8995_GPIO_1:
1371         case WM8995_GPIO_2:
1372         case WM8995_GPIO_3:
1373         case WM8995_GPIO_4:
1374         case WM8995_GPIO_5:
1375         case WM8995_GPIO_6:
1376         case WM8995_GPIO_7:
1377         case WM8995_GPIO_8:
1378         case WM8995_GPIO_9:
1379         case WM8995_GPIO_10:
1380         case WM8995_GPIO_11:
1381         case WM8995_GPIO_12:
1382         case WM8995_GPIO_13:
1383         case WM8995_GPIO_14:
1384         case WM8995_PULL_CONTROL_1:
1385         case WM8995_PULL_CONTROL_2:
1386         case WM8995_INTERRUPT_STATUS_1:
1387         case WM8995_INTERRUPT_STATUS_2:
1388         case WM8995_INTERRUPT_RAW_STATUS_2:
1389         case WM8995_INTERRUPT_STATUS_1_MASK:
1390         case WM8995_INTERRUPT_STATUS_2_MASK:
1391         case WM8995_INTERRUPT_CONTROL:
1392         case WM8995_LEFT_PDM_SPEAKER_1:
1393         case WM8995_RIGHT_PDM_SPEAKER_1:
1394         case WM8995_PDM_SPEAKER_1_MUTE_SEQUENCE:
1395         case WM8995_LEFT_PDM_SPEAKER_2:
1396         case WM8995_RIGHT_PDM_SPEAKER_2:
1397         case WM8995_PDM_SPEAKER_2_MUTE_SEQUENCE:
1398                 return true;
1399         default:
1400                 return false;
1401         }
1402 }
1403 
1404 static bool wm8995_volatile(struct device *dev, unsigned int reg)
1405 {
1406         switch (reg) {
1407         case WM8995_SOFTWARE_RESET:
1408         case WM8995_DC_SERVO_READBACK_0:
1409         case WM8995_INTERRUPT_STATUS_1:
1410         case WM8995_INTERRUPT_STATUS_2:
1411         case WM8995_INTERRUPT_CONTROL:
1412         case WM8995_ACCESSORY_DETECT_MODE1:
1413         case WM8995_ACCESSORY_DETECT_MODE2:
1414         case WM8995_HEADPHONE_DETECT1:
1415         case WM8995_HEADPHONE_DETECT2:
1416         case WM8995_RATE_STATUS:
1417                 return true;
1418         default:
1419                 return false;
1420         }
1421 }
1422 
1423 static int wm8995_aif_mute(struct snd_soc_dai *dai, int mute)
1424 {
1425         struct snd_soc_component *component = dai->component;
1426         int mute_reg;
1427 
1428         switch (dai->id) {
1429         case 0:
1430                 mute_reg = WM8995_AIF1_DAC1_FILTERS_1;
1431                 break;
1432         case 1:
1433                 mute_reg = WM8995_AIF2_DAC_FILTERS_1;
1434                 break;
1435         default:
1436                 return -EINVAL;
1437         }
1438 
1439         snd_soc_component_update_bits(component, mute_reg, WM8995_AIF1DAC1_MUTE_MASK,
1440                             !!mute << WM8995_AIF1DAC1_MUTE_SHIFT);
1441         return 0;
1442 }
1443 
1444 static int wm8995_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
1445 {
1446         struct snd_soc_component *component;
1447         int master;
1448         int aif;
1449 
1450         component = dai->component;
1451 
1452         master = 0;
1453         switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1454         case SND_SOC_DAIFMT_CBS_CFS:
1455                 break;
1456         case SND_SOC_DAIFMT_CBM_CFM:
1457                 master = WM8995_AIF1_MSTR;
1458                 break;
1459         default:
1460                 dev_err(dai->dev, "Unknown master/slave configuration\n");
1461                 return -EINVAL;
1462         }
1463 
1464         aif = 0;
1465         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1466         case SND_SOC_DAIFMT_DSP_B:
1467                 aif |= WM8995_AIF1_LRCLK_INV;
1468                 /* fall through */
1469         case SND_SOC_DAIFMT_DSP_A:
1470                 aif |= (0x3 << WM8995_AIF1_FMT_SHIFT);
1471                 break;
1472         case SND_SOC_DAIFMT_I2S:
1473                 aif |= (0x2 << WM8995_AIF1_FMT_SHIFT);
1474                 break;
1475         case SND_SOC_DAIFMT_RIGHT_J:
1476                 break;
1477         case SND_SOC_DAIFMT_LEFT_J:
1478                 aif |= (0x1 << WM8995_AIF1_FMT_SHIFT);
1479                 break;
1480         default:
1481                 dev_err(dai->dev, "Unknown dai format\n");
1482                 return -EINVAL;
1483         }
1484 
1485         switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1486         case SND_SOC_DAIFMT_DSP_A:
1487         case SND_SOC_DAIFMT_DSP_B:
1488                 /* frame inversion not valid for DSP modes */
1489                 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1490                 case SND_SOC_DAIFMT_NB_NF:
1491                         break;
1492                 case SND_SOC_DAIFMT_IB_NF:
1493                         aif |= WM8995_AIF1_BCLK_INV;
1494                         break;
1495                 default:
1496                         return -EINVAL;
1497                 }
1498                 break;
1499 
1500         case SND_SOC_DAIFMT_I2S:
1501         case SND_SOC_DAIFMT_RIGHT_J:
1502         case SND_SOC_DAIFMT_LEFT_J:
1503                 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1504                 case SND_SOC_DAIFMT_NB_NF:
1505                         break;
1506                 case SND_SOC_DAIFMT_IB_IF:
1507                         aif |= WM8995_AIF1_BCLK_INV | WM8995_AIF1_LRCLK_INV;
1508                         break;
1509                 case SND_SOC_DAIFMT_IB_NF:
1510                         aif |= WM8995_AIF1_BCLK_INV;
1511                         break;
1512                 case SND_SOC_DAIFMT_NB_IF:
1513                         aif |= WM8995_AIF1_LRCLK_INV;
1514                         break;
1515                 default:
1516                         return -EINVAL;
1517                 }
1518                 break;
1519         default:
1520                 return -EINVAL;
1521         }
1522 
1523         snd_soc_component_update_bits(component, WM8995_AIF1_CONTROL_1,
1524                             WM8995_AIF1_BCLK_INV_MASK |
1525                             WM8995_AIF1_LRCLK_INV_MASK |
1526                             WM8995_AIF1_FMT_MASK, aif);
1527         snd_soc_component_update_bits(component, WM8995_AIF1_MASTER_SLAVE,
1528                             WM8995_AIF1_MSTR_MASK, master);
1529         return 0;
1530 }
1531 
1532 static const int srs[] = {
1533         8000, 11025, 12000, 16000, 22050, 24000, 32000, 44100,
1534         48000, 88200, 96000
1535 };
1536 
1537 static const int fs_ratios[] = {
1538         -1 /* reserved */,
1539         128, 192, 256, 384, 512, 768, 1024, 1408, 1536
1540 };
1541 
1542 static const int bclk_divs[] = {
1543         10, 15, 20, 30, 40, 55, 60, 80, 110, 120, 160, 220, 240, 320, 440, 480
1544 };
1545 
1546 static int wm8995_hw_params(struct snd_pcm_substream *substream,
1547                             struct snd_pcm_hw_params *params,
1548                             struct snd_soc_dai *dai)
1549 {
1550         struct snd_soc_component *component;
1551         struct wm8995_priv *wm8995;
1552         int aif1_reg;
1553         int bclk_reg;
1554         int lrclk_reg;
1555         int rate_reg;
1556         int bclk_rate;
1557         int aif1;
1558         int lrclk, bclk;
1559         int i, rate_val, best, best_val, cur_val;
1560 
1561         component = dai->component;
1562         wm8995 = snd_soc_component_get_drvdata(component);
1563 
1564         switch (dai->id) {
1565         case 0:
1566                 aif1_reg = WM8995_AIF1_CONTROL_1;
1567                 bclk_reg = WM8995_AIF1_BCLK;
1568                 rate_reg = WM8995_AIF1_RATE;
1569                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK /* ||
1570                         wm8995->lrclk_shared[0] */) {
1571                         lrclk_reg = WM8995_AIF1DAC_LRCLK;
1572                 } else {
1573                         lrclk_reg = WM8995_AIF1ADC_LRCLK;
1574                         dev_dbg(component->dev, "AIF1 using split LRCLK\n");
1575                 }
1576                 break;
1577         case 1:
1578                 aif1_reg = WM8995_AIF2_CONTROL_1;
1579                 bclk_reg = WM8995_AIF2_BCLK;
1580                 rate_reg = WM8995_AIF2_RATE;
1581                 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK /* ||
1582                     wm8995->lrclk_shared[1] */) {
1583                         lrclk_reg = WM8995_AIF2DAC_LRCLK;
1584                 } else {
1585                         lrclk_reg = WM8995_AIF2ADC_LRCLK;
1586                         dev_dbg(component->dev, "AIF2 using split LRCLK\n");
1587                 }
1588                 break;
1589         default:
1590                 return -EINVAL;
1591         }
1592 
1593         bclk_rate = snd_soc_params_to_bclk(params);
1594         if (bclk_rate < 0)
1595                 return bclk_rate;
1596 
1597         aif1 = 0;
1598         switch (params_width(params)) {
1599         case 16:
1600                 break;
1601         case 20:
1602                 aif1 |= (0x1 << WM8995_AIF1_WL_SHIFT);
1603                 break;
1604         case 24:
1605                 aif1 |= (0x2 << WM8995_AIF1_WL_SHIFT);
1606                 break;
1607         case 32:
1608                 aif1 |= (0x3 << WM8995_AIF1_WL_SHIFT);
1609                 break;
1610         default:
1611                 dev_err(dai->dev, "Unsupported word length %u\n",
1612                         params_width(params));
1613                 return -EINVAL;
1614         }
1615 
1616         /* try to find a suitable sample rate */
1617         for (i = 0; i < ARRAY_SIZE(srs); ++i)
1618                 if (srs[i] == params_rate(params))
1619                         break;
1620         if (i == ARRAY_SIZE(srs)) {
1621                 dev_err(dai->dev, "Sample rate %d is not supported\n",
1622                         params_rate(params));
1623                 return -EINVAL;
1624         }
1625         rate_val = i << WM8995_AIF1_SR_SHIFT;
1626 
1627         dev_dbg(dai->dev, "Sample rate is %dHz\n", srs[i]);
1628         dev_dbg(dai->dev, "AIF%dCLK is %dHz, target BCLK %dHz\n",
1629                 dai->id + 1, wm8995->aifclk[dai->id], bclk_rate);
1630 
1631         /* AIFCLK/fs ratio; look for a close match in either direction */
1632         best = 1;
1633         best_val = abs((fs_ratios[1] * params_rate(params))
1634                        - wm8995->aifclk[dai->id]);
1635         for (i = 2; i < ARRAY_SIZE(fs_ratios); i++) {
1636                 cur_val = abs((fs_ratios[i] * params_rate(params))
1637                               - wm8995->aifclk[dai->id]);
1638                 if (cur_val >= best_val)
1639                         continue;
1640                 best = i;
1641                 best_val = cur_val;
1642         }
1643         rate_val |= best;
1644 
1645         dev_dbg(dai->dev, "Selected AIF%dCLK/fs = %d\n",
1646                 dai->id + 1, fs_ratios[best]);
1647 
1648         /*
1649          * We may not get quite the right frequency if using
1650          * approximate clocks so look for the closest match that is
1651          * higher than the target (we need to ensure that there enough
1652          * BCLKs to clock out the samples).
1653          */
1654         best = 0;
1655         bclk = 0;
1656         for (i = 0; i < ARRAY_SIZE(bclk_divs); i++) {
1657                 cur_val = (wm8995->aifclk[dai->id] * 10 / bclk_divs[i]) - bclk_rate;
1658                 if (cur_val < 0) /* BCLK table is sorted */
1659                         break;
1660                 best = i;
1661         }
1662         bclk |= best << WM8995_AIF1_BCLK_DIV_SHIFT;
1663 
1664         bclk_rate = wm8995->aifclk[dai->id] * 10 / bclk_divs[best];
1665         dev_dbg(dai->dev, "Using BCLK_DIV %d for actual BCLK %dHz\n",
1666                 bclk_divs[best], bclk_rate);
1667 
1668         lrclk = bclk_rate / params_rate(params);
1669         dev_dbg(dai->dev, "Using LRCLK rate %d for actual LRCLK %dHz\n",
1670                 lrclk, bclk_rate / lrclk);
1671 
1672         snd_soc_component_update_bits(component, aif1_reg,
1673                             WM8995_AIF1_WL_MASK, aif1);
1674         snd_soc_component_update_bits(component, bclk_reg,
1675                             WM8995_AIF1_BCLK_DIV_MASK, bclk);
1676         snd_soc_component_update_bits(component, lrclk_reg,
1677                             WM8995_AIF1DAC_RATE_MASK, lrclk);
1678         snd_soc_component_update_bits(component, rate_reg,
1679                             WM8995_AIF1_SR_MASK |
1680                             WM8995_AIF1CLK_RATE_MASK, rate_val);
1681         return 0;
1682 }
1683 
1684 static int wm8995_set_tristate(struct snd_soc_dai *codec_dai, int tristate)
1685 {
1686         struct snd_soc_component *component = codec_dai->component;
1687         int reg, val, mask;
1688 
1689         switch (codec_dai->id) {
1690         case 0:
1691                 reg = WM8995_AIF1_MASTER_SLAVE;
1692                 mask = WM8995_AIF1_TRI;
1693                 break;
1694         case 1:
1695                 reg = WM8995_AIF2_MASTER_SLAVE;
1696                 mask = WM8995_AIF2_TRI;
1697                 break;
1698         case 2:
1699                 reg = WM8995_POWER_MANAGEMENT_5;
1700                 mask = WM8995_AIF3_TRI;
1701                 break;
1702         default:
1703                 return -EINVAL;
1704         }
1705 
1706         if (tristate)
1707                 val = mask;
1708         else
1709                 val = 0;
1710 
1711         return snd_soc_component_update_bits(component, reg, mask, val);
1712 }
1713 
1714 /* The size in bits of the FLL divide multiplied by 10
1715  * to allow rounding later */
1716 #define FIXED_FLL_SIZE ((1 << 16) * 10)
1717 
1718 struct fll_div {
1719         u16 outdiv;
1720         u16 n;
1721         u16 k;
1722         u16 clk_ref_div;
1723         u16 fll_fratio;
1724 };
1725 
1726 static int wm8995_get_fll_config(struct fll_div *fll,
1727                                  int freq_in, int freq_out)
1728 {
1729         u64 Kpart;
1730         unsigned int K, Ndiv, Nmod;
1731 
1732         pr_debug("FLL input=%dHz, output=%dHz\n", freq_in, freq_out);
1733 
1734         /* Scale the input frequency down to <= 13.5MHz */
1735         fll->clk_ref_div = 0;
1736         while (freq_in > 13500000) {
1737                 fll->clk_ref_div++;
1738                 freq_in /= 2;
1739 
1740                 if (fll->clk_ref_div > 3)
1741                         return -EINVAL;
1742         }
1743         pr_debug("CLK_REF_DIV=%d, Fref=%dHz\n", fll->clk_ref_div, freq_in);
1744 
1745         /* Scale the output to give 90MHz<=Fvco<=100MHz */
1746         fll->outdiv = 3;
1747         while (freq_out * (fll->outdiv + 1) < 90000000) {
1748                 fll->outdiv++;
1749                 if (fll->outdiv > 63)
1750                         return -EINVAL;
1751         }
1752         freq_out *= fll->outdiv + 1;
1753         pr_debug("OUTDIV=%d, Fvco=%dHz\n", fll->outdiv, freq_out);
1754 
1755         if (freq_in > 1000000) {
1756                 fll->fll_fratio = 0;
1757         } else if (freq_in > 256000) {
1758                 fll->fll_fratio = 1;
1759                 freq_in *= 2;
1760         } else if (freq_in > 128000) {
1761                 fll->fll_fratio = 2;
1762                 freq_in *= 4;
1763         } else if (freq_in > 64000) {
1764                 fll->fll_fratio = 3;
1765                 freq_in *= 8;
1766         } else {
1767                 fll->fll_fratio = 4;
1768                 freq_in *= 16;
1769         }
1770         pr_debug("FLL_FRATIO=%d, Fref=%dHz\n", fll->fll_fratio, freq_in);
1771 
1772         /* Now, calculate N.K */
1773         Ndiv = freq_out / freq_in;
1774 
1775         fll->n = Ndiv;
1776         Nmod = freq_out % freq_in;
1777         pr_debug("Nmod=%d\n", Nmod);
1778 
1779         /* Calculate fractional part - scale up so we can round. */
1780         Kpart = FIXED_FLL_SIZE * (long long)Nmod;
1781 
1782         do_div(Kpart, freq_in);
1783 
1784         K = Kpart & 0xFFFFFFFF;
1785 
1786         if ((K % 10) >= 5)
1787                 K += 5;
1788 
1789         /* Move down to proper range now rounding is done */
1790         fll->k = K / 10;
1791 
1792         pr_debug("N=%x K=%x\n", fll->n, fll->k);
1793 
1794         return 0;
1795 }
1796 
1797 static int wm8995_set_fll(struct snd_soc_dai *dai, int id,
1798                           int src, unsigned int freq_in,
1799                           unsigned int freq_out)
1800 {
1801         struct snd_soc_component *component;
1802         struct wm8995_priv *wm8995;
1803         int reg_offset, ret;
1804         struct fll_div fll;
1805         u16 reg, aif1, aif2;
1806 
1807         component = dai->component;
1808         wm8995 = snd_soc_component_get_drvdata(component);
1809 
1810         aif1 = snd_soc_component_read32(component, WM8995_AIF1_CLOCKING_1)
1811                & WM8995_AIF1CLK_ENA;
1812 
1813         aif2 = snd_soc_component_read32(component, WM8995_AIF2_CLOCKING_1)
1814                & WM8995_AIF2CLK_ENA;
1815 
1816         switch (id) {
1817         case WM8995_FLL1:
1818                 reg_offset = 0;
1819                 id = 0;
1820                 break;
1821         case WM8995_FLL2:
1822                 reg_offset = 0x20;
1823                 id = 1;
1824                 break;
1825         default:
1826                 return -EINVAL;
1827         }
1828 
1829         switch (src) {
1830         case 0:
1831                 /* Allow no source specification when stopping */
1832                 if (freq_out)
1833                         return -EINVAL;
1834                 break;
1835         case WM8995_FLL_SRC_MCLK1:
1836         case WM8995_FLL_SRC_MCLK2:
1837         case WM8995_FLL_SRC_LRCLK:
1838         case WM8995_FLL_SRC_BCLK:
1839                 break;
1840         default:
1841                 return -EINVAL;
1842         }
1843 
1844         /* Are we changing anything? */
1845         if (wm8995->fll[id].src == src &&
1846             wm8995->fll[id].in == freq_in && wm8995->fll[id].out == freq_out)
1847                 return 0;
1848 
1849         /* If we're stopping the FLL redo the old config - no
1850          * registers will actually be written but we avoid GCC flow
1851          * analysis bugs spewing warnings.
1852          */
1853         if (freq_out)
1854                 ret = wm8995_get_fll_config(&fll, freq_in, freq_out);
1855         else
1856                 ret = wm8995_get_fll_config(&fll, wm8995->fll[id].in,
1857                                             wm8995->fll[id].out);
1858         if (ret < 0)
1859                 return ret;
1860 
1861         /* Gate the AIF clocks while we reclock */
1862         snd_soc_component_update_bits(component, WM8995_AIF1_CLOCKING_1,
1863                             WM8995_AIF1CLK_ENA_MASK, 0);
1864         snd_soc_component_update_bits(component, WM8995_AIF2_CLOCKING_1,
1865                             WM8995_AIF2CLK_ENA_MASK, 0);
1866 
1867         /* We always need to disable the FLL while reconfiguring */
1868         snd_soc_component_update_bits(component, WM8995_FLL1_CONTROL_1 + reg_offset,
1869                             WM8995_FLL1_ENA_MASK, 0);
1870 
1871         reg = (fll.outdiv << WM8995_FLL1_OUTDIV_SHIFT) |
1872               (fll.fll_fratio << WM8995_FLL1_FRATIO_SHIFT);
1873         snd_soc_component_update_bits(component, WM8995_FLL1_CONTROL_2 + reg_offset,
1874                             WM8995_FLL1_OUTDIV_MASK |
1875                             WM8995_FLL1_FRATIO_MASK, reg);
1876 
1877         snd_soc_component_write(component, WM8995_FLL1_CONTROL_3 + reg_offset, fll.k);
1878 
1879         snd_soc_component_update_bits(component, WM8995_FLL1_CONTROL_4 + reg_offset,
1880                             WM8995_FLL1_N_MASK,
1881                             fll.n << WM8995_FLL1_N_SHIFT);
1882 
1883         snd_soc_component_update_bits(component, WM8995_FLL1_CONTROL_5 + reg_offset,
1884                             WM8995_FLL1_REFCLK_DIV_MASK |
1885                             WM8995_FLL1_REFCLK_SRC_MASK,
1886                             (fll.clk_ref_div << WM8995_FLL1_REFCLK_DIV_SHIFT) |
1887                             (src - 1));
1888 
1889         if (freq_out)
1890                 snd_soc_component_update_bits(component, WM8995_FLL1_CONTROL_1 + reg_offset,
1891                                     WM8995_FLL1_ENA_MASK, WM8995_FLL1_ENA);
1892 
1893         wm8995->fll[id].in = freq_in;
1894         wm8995->fll[id].out = freq_out;
1895         wm8995->fll[id].src = src;
1896 
1897         /* Enable any gated AIF clocks */
1898         snd_soc_component_update_bits(component, WM8995_AIF1_CLOCKING_1,
1899                             WM8995_AIF1CLK_ENA_MASK, aif1);
1900         snd_soc_component_update_bits(component, WM8995_AIF2_CLOCKING_1,
1901                             WM8995_AIF2CLK_ENA_MASK, aif2);
1902 
1903         configure_clock(component);
1904 
1905         return 0;
1906 }
1907 
1908 static int wm8995_set_dai_sysclk(struct snd_soc_dai *dai,
1909                                  int clk_id, unsigned int freq, int dir)
1910 {
1911         struct snd_soc_component *component;
1912         struct wm8995_priv *wm8995;
1913 
1914         component = dai->component;
1915         wm8995 = snd_soc_component_get_drvdata(component);
1916 
1917         switch (dai->id) {
1918         case 0:
1919         case 1:
1920                 break;
1921         default:
1922                 /* AIF3 shares clocking with AIF1/2 */
1923                 return -EINVAL;
1924         }
1925 
1926         switch (clk_id) {
1927         case WM8995_SYSCLK_MCLK1:
1928                 wm8995->sysclk[dai->id] = WM8995_SYSCLK_MCLK1;
1929                 wm8995->mclk[0] = freq;
1930                 dev_dbg(dai->dev, "AIF%d using MCLK1 at %uHz\n",
1931                         dai->id + 1, freq);
1932                 break;
1933         case WM8995_SYSCLK_MCLK2:
1934                 wm8995->sysclk[dai->id] = WM8995_SYSCLK_MCLK2;
1935                 wm8995->mclk[1] = freq;
1936                 dev_dbg(dai->dev, "AIF%d using MCLK2 at %uHz\n",
1937                         dai->id + 1, freq);
1938                 break;
1939         case WM8995_SYSCLK_FLL1:
1940                 wm8995->sysclk[dai->id] = WM8995_SYSCLK_FLL1;
1941                 dev_dbg(dai->dev, "AIF%d using FLL1\n", dai->id + 1);
1942                 break;
1943         case WM8995_SYSCLK_FLL2:
1944                 wm8995->sysclk[dai->id] = WM8995_SYSCLK_FLL2;
1945                 dev_dbg(dai->dev, "AIF%d using FLL2\n", dai->id + 1);
1946                 break;
1947         case WM8995_SYSCLK_OPCLK:
1948         default:
1949                 dev_err(dai->dev, "Unknown clock source %d\n", clk_id);
1950                 return -EINVAL;
1951         }
1952 
1953         configure_clock(component);
1954 
1955         return 0;
1956 }
1957 
1958 static int wm8995_set_bias_level(struct snd_soc_component *component,
1959                                  enum snd_soc_bias_level level)
1960 {
1961         struct wm8995_priv *wm8995;
1962         int ret;
1963 
1964         wm8995 = snd_soc_component_get_drvdata(component);
1965         switch (level) {
1966         case SND_SOC_BIAS_ON:
1967         case SND_SOC_BIAS_PREPARE:
1968                 break;
1969         case SND_SOC_BIAS_STANDBY:
1970                 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
1971                         ret = regulator_bulk_enable(ARRAY_SIZE(wm8995->supplies),
1972                                                     wm8995->supplies);
1973                         if (ret)
1974                                 return ret;
1975 
1976                         ret = regcache_sync(wm8995->regmap);
1977                         if (ret) {
1978                                 dev_err(component->dev,
1979                                         "Failed to sync cache: %d\n", ret);
1980                                 return ret;
1981                         }
1982 
1983                         snd_soc_component_update_bits(component, WM8995_POWER_MANAGEMENT_1,
1984                                             WM8995_BG_ENA_MASK, WM8995_BG_ENA);
1985                 }
1986                 break;
1987         case SND_SOC_BIAS_OFF:
1988                 snd_soc_component_update_bits(component, WM8995_POWER_MANAGEMENT_1,
1989                                     WM8995_BG_ENA_MASK, 0);
1990                 regulator_bulk_disable(ARRAY_SIZE(wm8995->supplies),
1991                                        wm8995->supplies);
1992                 break;
1993         }
1994 
1995         return 0;
1996 }
1997 
1998 static void wm8995_remove(struct snd_soc_component *component)
1999 {
2000         struct wm8995_priv *wm8995;
2001         int i;
2002 
2003         wm8995 = snd_soc_component_get_drvdata(component);
2004 
2005         for (i = 0; i < ARRAY_SIZE(wm8995->supplies); ++i)
2006                 regulator_unregister_notifier(wm8995->supplies[i].consumer,
2007                                               &wm8995->disable_nb[i]);
2008 
2009         regulator_bulk_free(ARRAY_SIZE(wm8995->supplies), wm8995->supplies);
2010 }
2011 
2012 static int wm8995_probe(struct snd_soc_component *component)
2013 {
2014         struct wm8995_priv *wm8995;
2015         int i;
2016         int ret;
2017 
2018         wm8995 = snd_soc_component_get_drvdata(component);
2019         wm8995->component = component;
2020 
2021         for (i = 0; i < ARRAY_SIZE(wm8995->supplies); i++)
2022                 wm8995->supplies[i].supply = wm8995_supply_names[i];
2023 
2024         ret = regulator_bulk_get(component->dev, ARRAY_SIZE(wm8995->supplies),
2025                                  wm8995->supplies);
2026         if (ret) {
2027                 dev_err(component->dev, "Failed to request supplies: %d\n", ret);
2028                 return ret;
2029         }
2030 
2031         wm8995->disable_nb[0].notifier_call = wm8995_regulator_event_0;
2032         wm8995->disable_nb[1].notifier_call = wm8995_regulator_event_1;
2033         wm8995->disable_nb[2].notifier_call = wm8995_regulator_event_2;
2034         wm8995->disable_nb[3].notifier_call = wm8995_regulator_event_3;
2035         wm8995->disable_nb[4].notifier_call = wm8995_regulator_event_4;
2036         wm8995->disable_nb[5].notifier_call = wm8995_regulator_event_5;
2037         wm8995->disable_nb[6].notifier_call = wm8995_regulator_event_6;
2038         wm8995->disable_nb[7].notifier_call = wm8995_regulator_event_7;
2039 
2040         /* This should really be moved into the regulator core */
2041         for (i = 0; i < ARRAY_SIZE(wm8995->supplies); i++) {
2042                 ret = regulator_register_notifier(wm8995->supplies[i].consumer,
2043                                                   &wm8995->disable_nb[i]);
2044                 if (ret) {
2045                         dev_err(component->dev,
2046                                 "Failed to register regulator notifier: %d\n",
2047                                 ret);
2048                 }
2049         }
2050 
2051         ret = regulator_bulk_enable(ARRAY_SIZE(wm8995->supplies),
2052                                     wm8995->supplies);
2053         if (ret) {
2054                 dev_err(component->dev, "Failed to enable supplies: %d\n", ret);
2055                 goto err_reg_get;
2056         }
2057 
2058         ret = snd_soc_component_read32(component, WM8995_SOFTWARE_RESET);
2059         if (ret < 0) {
2060                 dev_err(component->dev, "Failed to read device ID: %d\n", ret);
2061                 goto err_reg_enable;
2062         }
2063 
2064         if (ret != 0x8995) {
2065                 dev_err(component->dev, "Invalid device ID: %#x\n", ret);
2066                 ret = -EINVAL;
2067                 goto err_reg_enable;
2068         }
2069 
2070         ret = snd_soc_component_write(component, WM8995_SOFTWARE_RESET, 0);
2071         if (ret < 0) {
2072                 dev_err(component->dev, "Failed to issue reset: %d\n", ret);
2073                 goto err_reg_enable;
2074         }
2075 
2076         /* Latch volume updates (right only; we always do left then right). */
2077         snd_soc_component_update_bits(component, WM8995_AIF1_DAC1_RIGHT_VOLUME,
2078                             WM8995_AIF1DAC1_VU_MASK, WM8995_AIF1DAC1_VU);
2079         snd_soc_component_update_bits(component, WM8995_AIF1_DAC2_RIGHT_VOLUME,
2080                             WM8995_AIF1DAC2_VU_MASK, WM8995_AIF1DAC2_VU);
2081         snd_soc_component_update_bits(component, WM8995_AIF2_DAC_RIGHT_VOLUME,
2082                             WM8995_AIF2DAC_VU_MASK, WM8995_AIF2DAC_VU);
2083         snd_soc_component_update_bits(component, WM8995_AIF1_ADC1_RIGHT_VOLUME,
2084                             WM8995_AIF1ADC1_VU_MASK, WM8995_AIF1ADC1_VU);
2085         snd_soc_component_update_bits(component, WM8995_AIF1_ADC2_RIGHT_VOLUME,
2086                             WM8995_AIF1ADC2_VU_MASK, WM8995_AIF1ADC2_VU);
2087         snd_soc_component_update_bits(component, WM8995_AIF2_ADC_RIGHT_VOLUME,
2088                             WM8995_AIF2ADC_VU_MASK, WM8995_AIF1ADC2_VU);
2089         snd_soc_component_update_bits(component, WM8995_DAC1_RIGHT_VOLUME,
2090                             WM8995_DAC1_VU_MASK, WM8995_DAC1_VU);
2091         snd_soc_component_update_bits(component, WM8995_DAC2_RIGHT_VOLUME,
2092                             WM8995_DAC2_VU_MASK, WM8995_DAC2_VU);
2093         snd_soc_component_update_bits(component, WM8995_RIGHT_LINE_INPUT_1_VOLUME,
2094                             WM8995_IN1_VU_MASK, WM8995_IN1_VU);
2095 
2096         wm8995_update_class_w(component);
2097 
2098         return 0;
2099 
2100 err_reg_enable:
2101         regulator_bulk_disable(ARRAY_SIZE(wm8995->supplies), wm8995->supplies);
2102 err_reg_get:
2103         regulator_bulk_free(ARRAY_SIZE(wm8995->supplies), wm8995->supplies);
2104         return ret;
2105 }
2106 
2107 #define WM8995_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
2108                         SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
2109 
2110 static const struct snd_soc_dai_ops wm8995_aif1_dai_ops = {
2111         .set_sysclk = wm8995_set_dai_sysclk,
2112         .set_fmt = wm8995_set_dai_fmt,
2113         .hw_params = wm8995_hw_params,
2114         .digital_mute = wm8995_aif_mute,
2115         .set_pll = wm8995_set_fll,
2116         .set_tristate = wm8995_set_tristate,
2117 };
2118 
2119 static const struct snd_soc_dai_ops wm8995_aif2_dai_ops = {
2120         .set_sysclk = wm8995_set_dai_sysclk,
2121         .set_fmt = wm8995_set_dai_fmt,
2122         .hw_params = wm8995_hw_params,
2123         .digital_mute = wm8995_aif_mute,
2124         .set_pll = wm8995_set_fll,
2125         .set_tristate = wm8995_set_tristate,
2126 };
2127 
2128 static const struct snd_soc_dai_ops wm8995_aif3_dai_ops = {
2129         .set_tristate = wm8995_set_tristate,
2130 };
2131 
2132 static struct snd_soc_dai_driver wm8995_dai[] = {
2133         {
2134                 .name = "wm8995-aif1",
2135                 .playback = {
2136                         .stream_name = "AIF1 Playback",
2137                         .channels_min = 2,
2138                         .channels_max = 2,
2139                         .rates = SNDRV_PCM_RATE_8000_96000,
2140                         .formats = WM8995_FORMATS
2141                 },
2142                 .capture = {
2143                         .stream_name = "AIF1 Capture",
2144                         .channels_min = 2,
2145                         .channels_max = 2,
2146                         .rates = SNDRV_PCM_RATE_8000_48000,
2147                         .formats = WM8995_FORMATS
2148                 },
2149                 .ops = &wm8995_aif1_dai_ops
2150         },
2151         {
2152                 .name = "wm8995-aif2",
2153                 .playback = {
2154                         .stream_name = "AIF2 Playback",
2155                         .channels_min = 2,
2156                         .channels_max = 2,
2157                         .rates = SNDRV_PCM_RATE_8000_96000,
2158                         .formats = WM8995_FORMATS
2159                 },
2160                 .capture = {
2161                         .stream_name = "AIF2 Capture",
2162                         .channels_min = 2,
2163                         .channels_max = 2,
2164                         .rates = SNDRV_PCM_RATE_8000_48000,
2165                         .formats = WM8995_FORMATS
2166                 },
2167                 .ops = &wm8995_aif2_dai_ops
2168         },
2169         {
2170                 .name = "wm8995-aif3",
2171                 .playback = {
2172                         .stream_name = "AIF3 Playback",
2173                         .channels_min = 2,
2174                         .channels_max = 2,
2175                         .rates = SNDRV_PCM_RATE_8000_96000,
2176                         .formats = WM8995_FORMATS
2177                 },
2178                 .capture = {
2179                         .stream_name = "AIF3 Capture",
2180                         .channels_min = 2,
2181                         .channels_max = 2,
2182                         .rates = SNDRV_PCM_RATE_8000_48000,
2183                         .formats = WM8995_FORMATS
2184                 },
2185                 .ops = &wm8995_aif3_dai_ops
2186         }
2187 };
2188 
2189 static const struct snd_soc_component_driver soc_component_dev_wm8995 = {
2190         .probe                  = wm8995_probe,
2191         .remove                 = wm8995_remove,
2192         .set_bias_level         = wm8995_set_bias_level,
2193         .controls               = wm8995_snd_controls,
2194         .num_controls           = ARRAY_SIZE(wm8995_snd_controls),
2195         .dapm_widgets           = wm8995_dapm_widgets,
2196         .num_dapm_widgets       = ARRAY_SIZE(wm8995_dapm_widgets),
2197         .dapm_routes            = wm8995_intercon,
2198         .num_dapm_routes        = ARRAY_SIZE(wm8995_intercon),
2199         .use_pmdown_time        = 1,
2200         .endianness             = 1,
2201         .non_legacy_dai_naming  = 1,
2202 };
2203 
2204 static const struct regmap_config wm8995_regmap = {
2205         .reg_bits = 16,
2206         .val_bits = 16,
2207 
2208         .max_register = WM8995_MAX_REGISTER,
2209         .reg_defaults = wm8995_reg_defaults,
2210         .num_reg_defaults = ARRAY_SIZE(wm8995_reg_defaults),
2211         .volatile_reg = wm8995_volatile,
2212         .readable_reg = wm8995_readable,
2213         .cache_type = REGCACHE_RBTREE,
2214 };
2215 
2216 #if defined(CONFIG_SPI_MASTER)
2217 static int wm8995_spi_probe(struct spi_device *spi)
2218 {
2219         struct wm8995_priv *wm8995;
2220         int ret;
2221 
2222         wm8995 = devm_kzalloc(&spi->dev, sizeof(*wm8995), GFP_KERNEL);
2223         if (!wm8995)
2224                 return -ENOMEM;
2225 
2226         spi_set_drvdata(spi, wm8995);
2227 
2228         wm8995->regmap = devm_regmap_init_spi(spi, &wm8995_regmap);
2229         if (IS_ERR(wm8995->regmap)) {
2230                 ret = PTR_ERR(wm8995->regmap);
2231                 dev_err(&spi->dev, "Failed to register regmap: %d\n", ret);
2232                 return ret;
2233         }
2234 
2235         ret = devm_snd_soc_register_component(&spi->dev,
2236                                      &soc_component_dev_wm8995, wm8995_dai,
2237                                      ARRAY_SIZE(wm8995_dai));
2238         return ret;
2239 }
2240 
2241 static struct spi_driver wm8995_spi_driver = {
2242         .driver = {
2243                 .name = "wm8995",
2244         },
2245         .probe = wm8995_spi_probe,
2246 };
2247 #endif
2248 
2249 #if IS_ENABLED(CONFIG_I2C)
2250 static int wm8995_i2c_probe(struct i2c_client *i2c,
2251                             const struct i2c_device_id *id)
2252 {
2253         struct wm8995_priv *wm8995;
2254         int ret;
2255 
2256         wm8995 = devm_kzalloc(&i2c->dev, sizeof(*wm8995), GFP_KERNEL);
2257         if (!wm8995)
2258                 return -ENOMEM;
2259 
2260         i2c_set_clientdata(i2c, wm8995);
2261 
2262         wm8995->regmap = devm_regmap_init_i2c(i2c, &wm8995_regmap);
2263         if (IS_ERR(wm8995->regmap)) {
2264                 ret = PTR_ERR(wm8995->regmap);
2265                 dev_err(&i2c->dev, "Failed to register regmap: %d\n", ret);
2266                 return ret;
2267         }
2268 
2269         ret = devm_snd_soc_register_component(&i2c->dev,
2270                                      &soc_component_dev_wm8995, wm8995_dai,
2271                                      ARRAY_SIZE(wm8995_dai));
2272         if (ret < 0)
2273                 dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
2274 
2275         return ret;
2276 }
2277 
2278 static const struct i2c_device_id wm8995_i2c_id[] = {
2279         {"wm8995", 0},
2280         {}
2281 };
2282 
2283 MODULE_DEVICE_TABLE(i2c, wm8995_i2c_id);
2284 
2285 static struct i2c_driver wm8995_i2c_driver = {
2286         .driver = {
2287                 .name = "wm8995",
2288         },
2289         .probe = wm8995_i2c_probe,
2290         .id_table = wm8995_i2c_id
2291 };
2292 #endif
2293 
2294 static int __init wm8995_modinit(void)
2295 {
2296         int ret = 0;
2297 
2298 #if IS_ENABLED(CONFIG_I2C)
2299         ret = i2c_add_driver(&wm8995_i2c_driver);
2300         if (ret) {
2301                 printk(KERN_ERR "Failed to register wm8995 I2C driver: %d\n",
2302                        ret);
2303         }
2304 #endif
2305 #if defined(CONFIG_SPI_MASTER)
2306         ret = spi_register_driver(&wm8995_spi_driver);
2307         if (ret) {
2308                 printk(KERN_ERR "Failed to register wm8995 SPI driver: %d\n",
2309                        ret);
2310         }
2311 #endif
2312         return ret;
2313 }
2314 
2315 module_init(wm8995_modinit);
2316 
2317 static void __exit wm8995_exit(void)
2318 {
2319 #if IS_ENABLED(CONFIG_I2C)
2320         i2c_del_driver(&wm8995_i2c_driver);
2321 #endif
2322 #if defined(CONFIG_SPI_MASTER)
2323         spi_unregister_driver(&wm8995_spi_driver);
2324 #endif
2325 }
2326 
2327 module_exit(wm8995_exit);
2328 
2329 MODULE_DESCRIPTION("ASoC WM8995 driver");
2330 MODULE_AUTHOR("Dimitris Papastamos <dp@opensource.wolfsonmicro.com>");
2331 MODULE_LICENSE("GPL");
2332 

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