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x86/xen: resume timer irqs early
[linux/fpc-iii.git] / sound / soc / codecs / wm8993.c
blob433d59a0f3efa025598cf5c63f42640120893f90
1 /*
2 * wm8993.c -- WM8993 ALSA SoC audio driver
3 *
4 * Copyright 2009-12 Wolfson Microelectronics plc
5 *
6 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 */
12
13 #include <linux/module.h>
14 #include <linux/moduleparam.h>
15 #include <linux/init.h>
16 #include <linux/delay.h>
17 #include <linux/pm.h>
18 #include <linux/i2c.h>
19 #include <linux/regmap.h>
20 #include <linux/regulator/consumer.h>
21 #include <linux/spi/spi.h>
22 #include <linux/slab.h>
23 #include <sound/core.h>
24 #include <sound/pcm.h>
25 #include <sound/pcm_params.h>
26 #include <sound/tlv.h>
27 #include <sound/soc.h>
28 #include <sound/initval.h>
29 #include <sound/wm8993.h>
30
31 #include "wm8993.h"
32 #include "wm_hubs.h"
33
34 #define WM8993_NUM_SUPPLIES 6
35 static const char *wm8993_supply_names[WM8993_NUM_SUPPLIES] = {
36 "DCVDD",
37 "DBVDD",
38 "AVDD1",
39 "AVDD2",
40 "CPVDD",
41 "SPKVDD",
42 };
43
44 static struct reg_default wm8993_reg_defaults[] = {
45 { 1, 0x0000 }, /* R1 - Power Management (1) */
46 { 2, 0x6000 }, /* R2 - Power Management (2) */
47 { 3, 0x0000 }, /* R3 - Power Management (3) */
48 { 4, 0x4050 }, /* R4 - Audio Interface (1) */
49 { 5, 0x4000 }, /* R5 - Audio Interface (2) */
50 { 6, 0x01C8 }, /* R6 - Clocking 1 */
51 { 7, 0x0000 }, /* R7 - Clocking 2 */
52 { 8, 0x0000 }, /* R8 - Audio Interface (3) */
53 { 9, 0x0040 }, /* R9 - Audio Interface (4) */
54 { 10, 0x0004 }, /* R10 - DAC CTRL */
55 { 11, 0x00C0 }, /* R11 - Left DAC Digital Volume */
56 { 12, 0x00C0 }, /* R12 - Right DAC Digital Volume */
57 { 13, 0x0000 }, /* R13 - Digital Side Tone */
58 { 14, 0x0300 }, /* R14 - ADC CTRL */
59 { 15, 0x00C0 }, /* R15 - Left ADC Digital Volume */
60 { 16, 0x00C0 }, /* R16 - Right ADC Digital Volume */
61 { 18, 0x0000 }, /* R18 - GPIO CTRL 1 */
62 { 19, 0x0010 }, /* R19 - GPIO1 */
63 { 20, 0x0000 }, /* R20 - IRQ_DEBOUNCE */
64 { 21, 0x0000 }, /* R21 - Inputs Clamp */
65 { 22, 0x8000 }, /* R22 - GPIOCTRL 2 */
66 { 23, 0x0800 }, /* R23 - GPIO_POL */
67 { 24, 0x008B }, /* R24 - Left Line Input 1&2 Volume */
68 { 25, 0x008B }, /* R25 - Left Line Input 3&4 Volume */
69 { 26, 0x008B }, /* R26 - Right Line Input 1&2 Volume */
70 { 27, 0x008B }, /* R27 - Right Line Input 3&4 Volume */
71 { 28, 0x006D }, /* R28 - Left Output Volume */
72 { 29, 0x006D }, /* R29 - Right Output Volume */
73 { 30, 0x0066 }, /* R30 - Line Outputs Volume */
74 { 31, 0x0020 }, /* R31 - HPOUT2 Volume */
75 { 32, 0x0079 }, /* R32 - Left OPGA Volume */
76 { 33, 0x0079 }, /* R33 - Right OPGA Volume */
77 { 34, 0x0003 }, /* R34 - SPKMIXL Attenuation */
78 { 35, 0x0003 }, /* R35 - SPKMIXR Attenuation */
79 { 36, 0x0011 }, /* R36 - SPKOUT Mixers */
80 { 37, 0x0100 }, /* R37 - SPKOUT Boost */
81 { 38, 0x0079 }, /* R38 - Speaker Volume Left */
82 { 39, 0x0079 }, /* R39 - Speaker Volume Right */
83 { 40, 0x0000 }, /* R40 - Input Mixer2 */
84 { 41, 0x0000 }, /* R41 - Input Mixer3 */
85 { 42, 0x0000 }, /* R42 - Input Mixer4 */
86 { 43, 0x0000 }, /* R43 - Input Mixer5 */
87 { 44, 0x0000 }, /* R44 - Input Mixer6 */
88 { 45, 0x0000 }, /* R45 - Output Mixer1 */
89 { 46, 0x0000 }, /* R46 - Output Mixer2 */
90 { 47, 0x0000 }, /* R47 - Output Mixer3 */
91 { 48, 0x0000 }, /* R48 - Output Mixer4 */
92 { 49, 0x0000 }, /* R49 - Output Mixer5 */
93 { 50, 0x0000 }, /* R50 - Output Mixer6 */
94 { 51, 0x0000 }, /* R51 - HPOUT2 Mixer */
95 { 52, 0x0000 }, /* R52 - Line Mixer1 */
96 { 53, 0x0000 }, /* R53 - Line Mixer2 */
97 { 54, 0x0000 }, /* R54 - Speaker Mixer */
98 { 55, 0x0000 }, /* R55 - Additional Control */
99 { 56, 0x0000 }, /* R56 - AntiPOP1 */
100 { 57, 0x0000 }, /* R57 - AntiPOP2 */
101 { 58, 0x0000 }, /* R58 - MICBIAS */
102 { 60, 0x0000 }, /* R60 - FLL Control 1 */
103 { 61, 0x0000 }, /* R61 - FLL Control 2 */
104 { 62, 0x0000 }, /* R62 - FLL Control 3 */
105 { 63, 0x2EE0 }, /* R63 - FLL Control 4 */
106 { 64, 0x0002 }, /* R64 - FLL Control 5 */
107 { 65, 0x2287 }, /* R65 - Clocking 3 */
108 { 66, 0x025F }, /* R66 - Clocking 4 */
109 { 67, 0x0000 }, /* R67 - MW Slave Control */
110 { 69, 0x0002 }, /* R69 - Bus Control 1 */
111 { 70, 0x0000 }, /* R70 - Write Sequencer 0 */
112 { 71, 0x0000 }, /* R71 - Write Sequencer 1 */
113 { 72, 0x0000 }, /* R72 - Write Sequencer 2 */
114 { 73, 0x0000 }, /* R73 - Write Sequencer 3 */
115 { 74, 0x0000 }, /* R74 - Write Sequencer 4 */
116 { 75, 0x0000 }, /* R75 - Write Sequencer 5 */
117 { 76, 0x1F25 }, /* R76 - Charge Pump 1 */
118 { 81, 0x0000 }, /* R81 - Class W 0 */
119 { 85, 0x054A }, /* R85 - DC Servo 1 */
120 { 87, 0x0000 }, /* R87 - DC Servo 3 */
121 { 96, 0x0100 }, /* R96 - Analogue HP 0 */
122 { 98, 0x0000 }, /* R98 - EQ1 */
123 { 99, 0x000C }, /* R99 - EQ2 */
124 { 100, 0x000C }, /* R100 - EQ3 */
125 { 101, 0x000C }, /* R101 - EQ4 */
126 { 102, 0x000C }, /* R102 - EQ5 */
127 { 103, 0x000C }, /* R103 - EQ6 */
128 { 104, 0x0FCA }, /* R104 - EQ7 */
129 { 105, 0x0400 }, /* R105 - EQ8 */
130 { 106, 0x00D8 }, /* R106 - EQ9 */
131 { 107, 0x1EB5 }, /* R107 - EQ10 */
132 { 108, 0xF145 }, /* R108 - EQ11 */
133 { 109, 0x0B75 }, /* R109 - EQ12 */
134 { 110, 0x01C5 }, /* R110 - EQ13 */
135 { 111, 0x1C58 }, /* R111 - EQ14 */
136 { 112, 0xF373 }, /* R112 - EQ15 */
137 { 113, 0x0A54 }, /* R113 - EQ16 */
138 { 114, 0x0558 }, /* R114 - EQ17 */
139 { 115, 0x168E }, /* R115 - EQ18 */
140 { 116, 0xF829 }, /* R116 - EQ19 */
141 { 117, 0x07AD }, /* R117 - EQ20 */
142 { 118, 0x1103 }, /* R118 - EQ21 */
143 { 119, 0x0564 }, /* R119 - EQ22 */
144 { 120, 0x0559 }, /* R120 - EQ23 */
145 { 121, 0x4000 }, /* R121 - EQ24 */
146 { 122, 0x0000 }, /* R122 - Digital Pulls */
147 { 123, 0x0F08 }, /* R123 - DRC Control 1 */
148 { 124, 0x0000 }, /* R124 - DRC Control 2 */
149 { 125, 0x0080 }, /* R125 - DRC Control 3 */
150 { 126, 0x0000 }, /* R126 - DRC Control 4 */
151 };
152
153 static struct {
154 int ratio;
155 int clk_sys_rate;
156 } clk_sys_rates[] = {
157 { 64, 0 },
158 { 128, 1 },
159 { 192, 2 },
160 { 256, 3 },
161 { 384, 4 },
162 { 512, 5 },
163 { 768, 6 },
164 { 1024, 7 },
165 { 1408, 8 },
166 { 1536, 9 },
167 };
168
169 static struct {
170 int rate;
171 int sample_rate;
172 } sample_rates[] = {
173 { 8000, 0 },
174 { 11025, 1 },
175 { 12000, 1 },
176 { 16000, 2 },
177 { 22050, 3 },
178 { 24000, 3 },
179 { 32000, 4 },
180 { 44100, 5 },
181 { 48000, 5 },
182 };
183
184 static struct {
185 int div; /* *10 due to .5s */
186 int bclk_div;
187 } bclk_divs[] = {
188 { 10, 0 },
189 { 15, 1 },
190 { 20, 2 },
191 { 30, 3 },
192 { 40, 4 },
193 { 55, 5 },
194 { 60, 6 },
195 { 80, 7 },
196 { 110, 8 },
197 { 120, 9 },
198 { 160, 10 },
199 { 220, 11 },
200 { 240, 12 },
201 { 320, 13 },
202 { 440, 14 },
203 { 480, 15 },
204 };
205
206 struct wm8993_priv {
207 struct wm_hubs_data hubs_data;
208 struct device *dev;
209 struct regmap *regmap;
210 struct regulator_bulk_data supplies[WM8993_NUM_SUPPLIES];
211 struct wm8993_platform_data pdata;
212 struct completion fll_lock;
213 int master;
214 int sysclk_source;
215 int tdm_slots;
216 int tdm_width;
217 unsigned int mclk_rate;
218 unsigned int sysclk_rate;
219 unsigned int fs;
220 unsigned int bclk;
221 unsigned int fll_fref;
222 unsigned int fll_fout;
223 int fll_src;
224 };
225
226 static bool wm8993_volatile(struct device *dev, unsigned int reg)
227 {
228 switch (reg) {
229 case WM8993_SOFTWARE_RESET:
230 case WM8993_GPIO_CTRL_1:
231 case WM8993_DC_SERVO_0:
232 case WM8993_DC_SERVO_READBACK_0:
233 case WM8993_DC_SERVO_READBACK_1:
234 case WM8993_DC_SERVO_READBACK_2:
235 return true;
236 default:
237 return false;
238 }
239 }
240
241 static bool wm8993_readable(struct device *dev, unsigned int reg)
242 {
243 switch (reg) {
244 case WM8993_SOFTWARE_RESET:
245 case WM8993_POWER_MANAGEMENT_1:
246 case WM8993_POWER_MANAGEMENT_2:
247 case WM8993_POWER_MANAGEMENT_3:
248 case WM8993_AUDIO_INTERFACE_1:
249 case WM8993_AUDIO_INTERFACE_2:
250 case WM8993_CLOCKING_1:
251 case WM8993_CLOCKING_2:
252 case WM8993_AUDIO_INTERFACE_3:
253 case WM8993_AUDIO_INTERFACE_4:
254 case WM8993_DAC_CTRL:
255 case WM8993_LEFT_DAC_DIGITAL_VOLUME:
256 case WM8993_RIGHT_DAC_DIGITAL_VOLUME:
257 case WM8993_DIGITAL_SIDE_TONE:
258 case WM8993_ADC_CTRL:
259 case WM8993_LEFT_ADC_DIGITAL_VOLUME:
260 case WM8993_RIGHT_ADC_DIGITAL_VOLUME:
261 case WM8993_GPIO_CTRL_1:
262 case WM8993_GPIO1:
263 case WM8993_IRQ_DEBOUNCE:
264 case WM8993_GPIOCTRL_2:
265 case WM8993_GPIO_POL:
266 case WM8993_LEFT_LINE_INPUT_1_2_VOLUME:
267 case WM8993_LEFT_LINE_INPUT_3_4_VOLUME:
268 case WM8993_RIGHT_LINE_INPUT_1_2_VOLUME:
269 case WM8993_RIGHT_LINE_INPUT_3_4_VOLUME:
270 case WM8993_LEFT_OUTPUT_VOLUME:
271 case WM8993_RIGHT_OUTPUT_VOLUME:
272 case WM8993_LINE_OUTPUTS_VOLUME:
273 case WM8993_HPOUT2_VOLUME:
274 case WM8993_LEFT_OPGA_VOLUME:
275 case WM8993_RIGHT_OPGA_VOLUME:
276 case WM8993_SPKMIXL_ATTENUATION:
277 case WM8993_SPKMIXR_ATTENUATION:
278 case WM8993_SPKOUT_MIXERS:
279 case WM8993_SPKOUT_BOOST:
280 case WM8993_SPEAKER_VOLUME_LEFT:
281 case WM8993_SPEAKER_VOLUME_RIGHT:
282 case WM8993_INPUT_MIXER2:
283 case WM8993_INPUT_MIXER3:
284 case WM8993_INPUT_MIXER4:
285 case WM8993_INPUT_MIXER5:
286 case WM8993_INPUT_MIXER6:
287 case WM8993_OUTPUT_MIXER1:
288 case WM8993_OUTPUT_MIXER2:
289 case WM8993_OUTPUT_MIXER3:
290 case WM8993_OUTPUT_MIXER4:
291 case WM8993_OUTPUT_MIXER5:
292 case WM8993_OUTPUT_MIXER6:
293 case WM8993_HPOUT2_MIXER:
294 case WM8993_LINE_MIXER1:
295 case WM8993_LINE_MIXER2:
296 case WM8993_SPEAKER_MIXER:
297 case WM8993_ADDITIONAL_CONTROL:
298 case WM8993_ANTIPOP1:
299 case WM8993_ANTIPOP2:
300 case WM8993_MICBIAS:
301 case WM8993_FLL_CONTROL_1:
302 case WM8993_FLL_CONTROL_2:
303 case WM8993_FLL_CONTROL_3:
304 case WM8993_FLL_CONTROL_4:
305 case WM8993_FLL_CONTROL_5:
306 case WM8993_CLOCKING_3:
307 case WM8993_CLOCKING_4:
308 case WM8993_MW_SLAVE_CONTROL:
309 case WM8993_BUS_CONTROL_1:
310 case WM8993_WRITE_SEQUENCER_0:
311 case WM8993_WRITE_SEQUENCER_1:
312 case WM8993_WRITE_SEQUENCER_2:
313 case WM8993_WRITE_SEQUENCER_3:
314 case WM8993_WRITE_SEQUENCER_4:
315 case WM8993_WRITE_SEQUENCER_5:
316 case WM8993_CHARGE_PUMP_1:
317 case WM8993_CLASS_W_0:
318 case WM8993_DC_SERVO_0:
319 case WM8993_DC_SERVO_1:
320 case WM8993_DC_SERVO_3:
321 case WM8993_DC_SERVO_READBACK_0:
322 case WM8993_DC_SERVO_READBACK_1:
323 case WM8993_DC_SERVO_READBACK_2:
324 case WM8993_ANALOGUE_HP_0:
325 case WM8993_EQ1:
326 case WM8993_EQ2:
327 case WM8993_EQ3:
328 case WM8993_EQ4:
329 case WM8993_EQ5:
330 case WM8993_EQ6:
331 case WM8993_EQ7:
332 case WM8993_EQ8:
333 case WM8993_EQ9:
334 case WM8993_EQ10:
335 case WM8993_EQ11:
336 case WM8993_EQ12:
337 case WM8993_EQ13:
338 case WM8993_EQ14:
339 case WM8993_EQ15:
340 case WM8993_EQ16:
341 case WM8993_EQ17:
342 case WM8993_EQ18:
343 case WM8993_EQ19:
344 case WM8993_EQ20:
345 case WM8993_EQ21:
346 case WM8993_EQ22:
347 case WM8993_EQ23:
348 case WM8993_EQ24:
349 case WM8993_DIGITAL_PULLS:
350 case WM8993_DRC_CONTROL_1:
351 case WM8993_DRC_CONTROL_2:
352 case WM8993_DRC_CONTROL_3:
353 case WM8993_DRC_CONTROL_4:
354 return true;
355 default:
356 return false;
357 }
358 }
359
360 struct _fll_div {
361 u16 fll_fratio;
362 u16 fll_outdiv;
363 u16 fll_clk_ref_div;
364 u16 n;
365 u16 k;
366 };
367
368 /* The size in bits of the FLL divide multiplied by 10
369 * to allow rounding later */
370 #define FIXED_FLL_SIZE ((1 << 16) * 10)
371
372 static struct {
373 unsigned int min;
374 unsigned int max;
375 u16 fll_fratio;
376 int ratio;
377 } fll_fratios[] = {
378 { 0, 64000, 4, 16 },
379 { 64000, 128000, 3, 8 },
380 { 128000, 256000, 2, 4 },
381 { 256000, 1000000, 1, 2 },
382 { 1000000, 13500000, 0, 1 },
383 };
384
385 static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,
386 unsigned int Fout)
387 {
388 u64 Kpart;
389 unsigned int K, Ndiv, Nmod, target;
390 unsigned int div;
391 int i;
392
393 /* Fref must be <=13.5MHz */
394 div = 1;
395 fll_div->fll_clk_ref_div = 0;
396 while ((Fref / div) > 13500000) {
397 div *= 2;
398 fll_div->fll_clk_ref_div++;
399
400 if (div > 8) {
401 pr_err("Can't scale %dMHz input down to <=13.5MHz\n",
402 Fref);
403 return -EINVAL;
404 }
405 }
406
407 pr_debug("Fref=%u Fout=%u\n", Fref, Fout);
408
409 /* Apply the division for our remaining calculations */
410 Fref /= div;
411
412 /* Fvco should be 90-100MHz; don't check the upper bound */
413 div = 0;
414 target = Fout * 2;
415 while (target < 90000000) {
416 div++;
417 target *= 2;
418 if (div > 7) {
419 pr_err("Unable to find FLL_OUTDIV for Fout=%uHz\n",
420 Fout);
421 return -EINVAL;
422 }
423 }
424 fll_div->fll_outdiv = div;
425
426 pr_debug("Fvco=%dHz\n", target);
427
428 /* Find an appropriate FLL_FRATIO and factor it out of the target */
429 for (i = 0; i < ARRAY_SIZE(fll_fratios); i++) {
430 if (fll_fratios[i].min <= Fref && Fref <= fll_fratios[i].max) {
431 fll_div->fll_fratio = fll_fratios[i].fll_fratio;
432 target /= fll_fratios[i].ratio;
433 break;
434 }
435 }
436 if (i == ARRAY_SIZE(fll_fratios)) {
437 pr_err("Unable to find FLL_FRATIO for Fref=%uHz\n", Fref);
438 return -EINVAL;
439 }
440
441 /* Now, calculate N.K */
442 Ndiv = target / Fref;
443
444 fll_div->n = Ndiv;
445 Nmod = target % Fref;
446 pr_debug("Nmod=%d\n", Nmod);
447
448 /* Calculate fractional part - scale up so we can round. */
449 Kpart = FIXED_FLL_SIZE * (long long)Nmod;
450
451 do_div(Kpart, Fref);
452
453 K = Kpart & 0xFFFFFFFF;
454
455 if ((K % 10) >= 5)
456 K += 5;
457
458 /* Move down to proper range now rounding is done */
459 fll_div->k = K / 10;
460
461 pr_debug("N=%x K=%x FLL_FRATIO=%x FLL_OUTDIV=%x FLL_CLK_REF_DIV=%x\n",
462 fll_div->n, fll_div->k,
463 fll_div->fll_fratio, fll_div->fll_outdiv,
464 fll_div->fll_clk_ref_div);
465
466 return 0;
467 }
468
469 static int _wm8993_set_fll(struct snd_soc_codec *codec, int fll_id, int source,
470 unsigned int Fref, unsigned int Fout)
471 {
472 struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
473 struct i2c_client *i2c = to_i2c_client(codec->dev);
474 u16 reg1, reg4, reg5;
475 struct _fll_div fll_div;
476 unsigned int timeout;
477 int ret;
478
479 /* Any change? */
480 if (Fref == wm8993->fll_fref && Fout == wm8993->fll_fout)
481 return 0;
482
483 /* Disable the FLL */
484 if (Fout == 0) {
485 dev_dbg(codec->dev, "FLL disabled\n");
486 wm8993->fll_fref = 0;
487 wm8993->fll_fout = 0;
488
489 reg1 = snd_soc_read(codec, WM8993_FLL_CONTROL_1);
490 reg1 &= ~WM8993_FLL_ENA;
491 snd_soc_write(codec, WM8993_FLL_CONTROL_1, reg1);
492
493 return 0;
494 }
495
496 ret = fll_factors(&fll_div, Fref, Fout);
497 if (ret != 0)
498 return ret;
499
500 reg5 = snd_soc_read(codec, WM8993_FLL_CONTROL_5);
501 reg5 &= ~WM8993_FLL_CLK_SRC_MASK;
502
503 switch (fll_id) {
504 case WM8993_FLL_MCLK:
505 break;
506
507 case WM8993_FLL_LRCLK:
508 reg5 |= 1;
509 break;
510
511 case WM8993_FLL_BCLK:
512 reg5 |= 2;
513 break;
514
515 default:
516 dev_err(codec->dev, "Unknown FLL ID %d\n", fll_id);
517 return -EINVAL;
518 }
519
520 /* Any FLL configuration change requires that the FLL be
521 * disabled first. */
522 reg1 = snd_soc_read(codec, WM8993_FLL_CONTROL_1);
523 reg1 &= ~WM8993_FLL_ENA;
524 snd_soc_write(codec, WM8993_FLL_CONTROL_1, reg1);
525
526 /* Apply the configuration */
527 if (fll_div.k)
528 reg1 |= WM8993_FLL_FRAC_MASK;
529 else
530 reg1 &= ~WM8993_FLL_FRAC_MASK;
531 snd_soc_write(codec, WM8993_FLL_CONTROL_1, reg1);
532
533 snd_soc_write(codec, WM8993_FLL_CONTROL_2,
534 (fll_div.fll_outdiv << WM8993_FLL_OUTDIV_SHIFT) |
535 (fll_div.fll_fratio << WM8993_FLL_FRATIO_SHIFT));
536 snd_soc_write(codec, WM8993_FLL_CONTROL_3, fll_div.k);
537
538 reg4 = snd_soc_read(codec, WM8993_FLL_CONTROL_4);
539 reg4 &= ~WM8993_FLL_N_MASK;
540 reg4 |= fll_div.n << WM8993_FLL_N_SHIFT;
541 snd_soc_write(codec, WM8993_FLL_CONTROL_4, reg4);
542
543 reg5 &= ~WM8993_FLL_CLK_REF_DIV_MASK;
544 reg5 |= fll_div.fll_clk_ref_div << WM8993_FLL_CLK_REF_DIV_SHIFT;
545 snd_soc_write(codec, WM8993_FLL_CONTROL_5, reg5);
546
547 /* If we've got an interrupt wired up make sure we get it */
548 if (i2c->irq)
549 timeout = msecs_to_jiffies(20);
550 else if (Fref < 1000000)
551 timeout = msecs_to_jiffies(3);
552 else
553 timeout = msecs_to_jiffies(1);
554
555 try_wait_for_completion(&wm8993->fll_lock);
556
557 /* Enable the FLL */
558 snd_soc_write(codec, WM8993_FLL_CONTROL_1, reg1 | WM8993_FLL_ENA);
559
560 timeout = wait_for_completion_timeout(&wm8993->fll_lock, timeout);
561 if (i2c->irq && !timeout)
562 dev_warn(codec->dev, "Timed out waiting for FLL\n");
563
564 dev_dbg(codec->dev, "FLL enabled at %dHz->%dHz\n", Fref, Fout);
565
566 wm8993->fll_fref = Fref;
567 wm8993->fll_fout = Fout;
568 wm8993->fll_src = source;
569
570 return 0;
571 }
572
573 static int wm8993_set_fll(struct snd_soc_dai *dai, int fll_id, int source,
574 unsigned int Fref, unsigned int Fout)
575 {
576 return _wm8993_set_fll(dai->codec, fll_id, source, Fref, Fout);
577 }
578
579 static int configure_clock(struct snd_soc_codec *codec)
580 {
581 struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
582 unsigned int reg;
583
584 /* This should be done on init() for bypass paths */
585 switch (wm8993->sysclk_source) {
586 case WM8993_SYSCLK_MCLK:
587 dev_dbg(codec->dev, "Using %dHz MCLK\n", wm8993->mclk_rate);
588
589 reg = snd_soc_read(codec, WM8993_CLOCKING_2);
590 reg &= ~(WM8993_MCLK_DIV | WM8993_SYSCLK_SRC);
591 if (wm8993->mclk_rate > 13500000) {
592 reg |= WM8993_MCLK_DIV;
593 wm8993->sysclk_rate = wm8993->mclk_rate / 2;
594 } else {
595 reg &= ~WM8993_MCLK_DIV;
596 wm8993->sysclk_rate = wm8993->mclk_rate;
597 }
598 snd_soc_write(codec, WM8993_CLOCKING_2, reg);
599 break;
600
601 case WM8993_SYSCLK_FLL:
602 dev_dbg(codec->dev, "Using %dHz FLL clock\n",
603 wm8993->fll_fout);
604
605 reg = snd_soc_read(codec, WM8993_CLOCKING_2);
606 reg |= WM8993_SYSCLK_SRC;
607 if (wm8993->fll_fout > 13500000) {
608 reg |= WM8993_MCLK_DIV;
609 wm8993->sysclk_rate = wm8993->fll_fout / 2;
610 } else {
611 reg &= ~WM8993_MCLK_DIV;
612 wm8993->sysclk_rate = wm8993->fll_fout;
613 }
614 snd_soc_write(codec, WM8993_CLOCKING_2, reg);
615 break;
616
617 default:
618 dev_err(codec->dev, "System clock not configured\n");
619 return -EINVAL;
620 }
621
622 dev_dbg(codec->dev, "CLK_SYS is %dHz\n", wm8993->sysclk_rate);
623
624 return 0;
625 }
626
627 static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -3600, 300, 0);
628 static const DECLARE_TLV_DB_SCALE(drc_comp_threash, -4500, 75, 0);
629 static const DECLARE_TLV_DB_SCALE(drc_comp_amp, -2250, 75, 0);
630 static const DECLARE_TLV_DB_SCALE(drc_min_tlv, -1800, 600, 0);
631 static const unsigned int drc_max_tlv[] = {
632 TLV_DB_RANGE_HEAD(2),
633 0, 2, TLV_DB_SCALE_ITEM(1200, 600, 0),
634 3, 3, TLV_DB_SCALE_ITEM(3600, 0, 0),
635 };
636 static const DECLARE_TLV_DB_SCALE(drc_qr_tlv, 1200, 600, 0);
637 static const DECLARE_TLV_DB_SCALE(drc_startup_tlv, -1800, 300, 0);
638 static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
639 static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
640 static const DECLARE_TLV_DB_SCALE(dac_boost_tlv, 0, 600, 0);
641
642 static const char *dac_deemph_text[] = {
643 "None",
644 "32kHz",
645 "44.1kHz",
646 "48kHz",
647 };
648
649 static const struct soc_enum dac_deemph =
650 SOC_ENUM_SINGLE(WM8993_DAC_CTRL, 4, 4, dac_deemph_text);
651
652 static const char *adc_hpf_text[] = {
653 "Hi-Fi",
654 "Voice 1",
655 "Voice 2",
656 "Voice 3",
657 };
658
659 static const struct soc_enum adc_hpf =
660 SOC_ENUM_SINGLE(WM8993_ADC_CTRL, 5, 4, adc_hpf_text);
661
662 static const char *drc_path_text[] = {
663 "ADC",
664 "DAC"
665 };
666
667 static const struct soc_enum drc_path =
668 SOC_ENUM_SINGLE(WM8993_DRC_CONTROL_1, 14, 2, drc_path_text);
669
670 static const char *drc_r0_text[] = {
671 "1",
672 "1/2",
673 "1/4",
674 "1/8",
675 "1/16",
676 "0",
677 };
678
679 static const struct soc_enum drc_r0 =
680 SOC_ENUM_SINGLE(WM8993_DRC_CONTROL_3, 8, 6, drc_r0_text);
681
682 static const char *drc_r1_text[] = {
683 "1",
684 "1/2",
685 "1/4",
686 "1/8",
687 "0",
688 };
689
690 static const struct soc_enum drc_r1 =
691 SOC_ENUM_SINGLE(WM8993_DRC_CONTROL_4, 13, 5, drc_r1_text);
692
693 static const char *drc_attack_text[] = {
694 "Reserved",
695 "181us",
696 "363us",
697 "726us",
698 "1.45ms",
699 "2.9ms",
700 "5.8ms",
701 "11.6ms",
702 "23.2ms",
703 "46.4ms",
704 "92.8ms",
705 "185.6ms",
706 };
707
708 static const struct soc_enum drc_attack =
709 SOC_ENUM_SINGLE(WM8993_DRC_CONTROL_2, 12, 12, drc_attack_text);
710
711 static const char *drc_decay_text[] = {
712 "186ms",
713 "372ms",
714 "743ms",
715 "1.49s",
716 "2.97ms",
717 "5.94ms",
718 "11.89ms",
719 "23.78ms",
720 "47.56ms",
721 };
722
723 static const struct soc_enum drc_decay =
724 SOC_ENUM_SINGLE(WM8993_DRC_CONTROL_2, 8, 9, drc_decay_text);
725
726 static const char *drc_ff_text[] = {
727 "5 samples",
728 "9 samples",
729 };
730
731 static const struct soc_enum drc_ff =
732 SOC_ENUM_SINGLE(WM8993_DRC_CONTROL_3, 7, 2, drc_ff_text);
733
734 static const char *drc_qr_rate_text[] = {
735 "0.725ms",
736 "1.45ms",
737 "5.8ms",
738 };
739
740 static const struct soc_enum drc_qr_rate =
741 SOC_ENUM_SINGLE(WM8993_DRC_CONTROL_3, 0, 3, drc_qr_rate_text);
742
743 static const char *drc_smooth_text[] = {
744 "Low",
745 "Medium",
746 "High",
747 };
748
749 static const struct soc_enum drc_smooth =
750 SOC_ENUM_SINGLE(WM8993_DRC_CONTROL_1, 4, 3, drc_smooth_text);
751
752 static const struct snd_kcontrol_new wm8993_snd_controls[] = {
753 SOC_DOUBLE_TLV("Digital Sidetone Volume", WM8993_DIGITAL_SIDE_TONE,
754 5, 9, 12, 0, sidetone_tlv),
755
756 SOC_SINGLE("DRC Switch", WM8993_DRC_CONTROL_1, 15, 1, 0),
757 SOC_ENUM("DRC Path", drc_path),
758 SOC_SINGLE_TLV("DRC Compressor Threshold Volume", WM8993_DRC_CONTROL_2,
759 2, 60, 1, drc_comp_threash),
760 SOC_SINGLE_TLV("DRC Compressor Amplitude Volume", WM8993_DRC_CONTROL_3,
761 11, 30, 1, drc_comp_amp),
762 SOC_ENUM("DRC R0", drc_r0),
763 SOC_ENUM("DRC R1", drc_r1),
764 SOC_SINGLE_TLV("DRC Minimum Volume", WM8993_DRC_CONTROL_1, 2, 3, 1,
765 drc_min_tlv),
766 SOC_SINGLE_TLV("DRC Maximum Volume", WM8993_DRC_CONTROL_1, 0, 3, 0,
767 drc_max_tlv),
768 SOC_ENUM("DRC Attack Rate", drc_attack),
769 SOC_ENUM("DRC Decay Rate", drc_decay),
770 SOC_ENUM("DRC FF Delay", drc_ff),
771 SOC_SINGLE("DRC Anti-clip Switch", WM8993_DRC_CONTROL_1, 9, 1, 0),
772 SOC_SINGLE("DRC Quick Release Switch", WM8993_DRC_CONTROL_1, 10, 1, 0),
773 SOC_SINGLE_TLV("DRC Quick Release Volume", WM8993_DRC_CONTROL_3, 2, 3, 0,
774 drc_qr_tlv),
775 SOC_ENUM("DRC Quick Release Rate", drc_qr_rate),
776 SOC_SINGLE("DRC Smoothing Switch", WM8993_DRC_CONTROL_1, 11, 1, 0),
777 SOC_SINGLE("DRC Smoothing Hysteresis Switch", WM8993_DRC_CONTROL_1, 8, 1, 0),
778 SOC_ENUM("DRC Smoothing Hysteresis Threshold", drc_smooth),
779 SOC_SINGLE_TLV("DRC Startup Volume", WM8993_DRC_CONTROL_4, 8, 18, 0,
780 drc_startup_tlv),
781
782 SOC_SINGLE("EQ Switch", WM8993_EQ1, 0, 1, 0),
783
784 SOC_DOUBLE_R_TLV("Capture Volume", WM8993_LEFT_ADC_DIGITAL_VOLUME,
785 WM8993_RIGHT_ADC_DIGITAL_VOLUME, 1, 96, 0, digital_tlv),
786 SOC_SINGLE("ADC High Pass Filter Switch", WM8993_ADC_CTRL, 8, 1, 0),
787 SOC_ENUM("ADC High Pass Filter Mode", adc_hpf),
788
789 SOC_DOUBLE_R_TLV("Playback Volume", WM8993_LEFT_DAC_DIGITAL_VOLUME,
790 WM8993_RIGHT_DAC_DIGITAL_VOLUME, 1, 96, 0, digital_tlv),
791 SOC_SINGLE_TLV("Playback Boost Volume", WM8993_AUDIO_INTERFACE_2, 10, 3, 0,
792 dac_boost_tlv),
793 SOC_ENUM("DAC Deemphasis", dac_deemph),
794
795 SOC_SINGLE_TLV("SPKL DAC Volume", WM8993_SPKMIXL_ATTENUATION,
796 2, 1, 1, wm_hubs_spkmix_tlv),
797
798 SOC_SINGLE_TLV("SPKR DAC Volume", WM8993_SPKMIXR_ATTENUATION,
799 2, 1, 1, wm_hubs_spkmix_tlv),
800 };
801
802 static const struct snd_kcontrol_new wm8993_eq_controls[] = {
803 SOC_SINGLE_TLV("EQ1 Volume", WM8993_EQ2, 0, 24, 0, eq_tlv),
804 SOC_SINGLE_TLV("EQ2 Volume", WM8993_EQ3, 0, 24, 0, eq_tlv),
805 SOC_SINGLE_TLV("EQ3 Volume", WM8993_EQ4, 0, 24, 0, eq_tlv),
806 SOC_SINGLE_TLV("EQ4 Volume", WM8993_EQ5, 0, 24, 0, eq_tlv),
807 SOC_SINGLE_TLV("EQ5 Volume", WM8993_EQ6, 0, 24, 0, eq_tlv),
808 };
809
810 static int clk_sys_event(struct snd_soc_dapm_widget *w,
811 struct snd_kcontrol *kcontrol, int event)
812 {
813 struct snd_soc_codec *codec = w->codec;
814
815 switch (event) {
816 case SND_SOC_DAPM_PRE_PMU:
817 return configure_clock(codec);
818
819 case SND_SOC_DAPM_POST_PMD:
820 break;
821 }
822
823 return 0;
824 }
825
826 static const struct snd_kcontrol_new left_speaker_mixer[] = {
827 SOC_DAPM_SINGLE("Input Switch", WM8993_SPEAKER_MIXER, 7, 1, 0),
828 SOC_DAPM_SINGLE("IN1LP Switch", WM8993_SPEAKER_MIXER, 5, 1, 0),
829 SOC_DAPM_SINGLE("Output Switch", WM8993_SPEAKER_MIXER, 3, 1, 0),
830 SOC_DAPM_SINGLE("DAC Switch", WM8993_SPEAKER_MIXER, 6, 1, 0),
831 };
832
833 static const struct snd_kcontrol_new right_speaker_mixer[] = {
834 SOC_DAPM_SINGLE("Input Switch", WM8993_SPEAKER_MIXER, 6, 1, 0),
835 SOC_DAPM_SINGLE("IN1RP Switch", WM8993_SPEAKER_MIXER, 4, 1, 0),
836 SOC_DAPM_SINGLE("Output Switch", WM8993_SPEAKER_MIXER, 2, 1, 0),
837 SOC_DAPM_SINGLE("DAC Switch", WM8993_SPEAKER_MIXER, 0, 1, 0),
838 };
839
840 static const char *aif_text[] = {
841 "Left", "Right"
842 };
843
844 static const struct soc_enum aifoutl_enum =
845 SOC_ENUM_SINGLE(WM8993_AUDIO_INTERFACE_1, 15, 2, aif_text);
846
847 static const struct snd_kcontrol_new aifoutl_mux =
848 SOC_DAPM_ENUM("AIFOUTL Mux", aifoutl_enum);
849
850 static const struct soc_enum aifoutr_enum =
851 SOC_ENUM_SINGLE(WM8993_AUDIO_INTERFACE_1, 14, 2, aif_text);
852
853 static const struct snd_kcontrol_new aifoutr_mux =
854 SOC_DAPM_ENUM("AIFOUTR Mux", aifoutr_enum);
855
856 static const struct soc_enum aifinl_enum =
857 SOC_ENUM_SINGLE(WM8993_AUDIO_INTERFACE_2, 15, 2, aif_text);
858
859 static const struct snd_kcontrol_new aifinl_mux =
860 SOC_DAPM_ENUM("AIFINL Mux", aifinl_enum);
861
862 static const struct soc_enum aifinr_enum =
863 SOC_ENUM_SINGLE(WM8993_AUDIO_INTERFACE_2, 14, 2, aif_text);
864
865 static const struct snd_kcontrol_new aifinr_mux =
866 SOC_DAPM_ENUM("AIFINR Mux", aifinr_enum);
867
868 static const char *sidetone_text[] = {
869 "None", "Left", "Right"
870 };
871
872 static const struct soc_enum sidetonel_enum =
873 SOC_ENUM_SINGLE(WM8993_DIGITAL_SIDE_TONE, 2, 3, sidetone_text);
874
875 static const struct snd_kcontrol_new sidetonel_mux =
876 SOC_DAPM_ENUM("Left Sidetone", sidetonel_enum);
877
878 static const struct soc_enum sidetoner_enum =
879 SOC_ENUM_SINGLE(WM8993_DIGITAL_SIDE_TONE, 0, 3, sidetone_text);
880
881 static const struct snd_kcontrol_new sidetoner_mux =
882 SOC_DAPM_ENUM("Right Sidetone", sidetoner_enum);
883
884 static const struct snd_soc_dapm_widget wm8993_dapm_widgets[] = {
885 SND_SOC_DAPM_SUPPLY("CLK_SYS", WM8993_BUS_CONTROL_1, 1, 0, clk_sys_event,
886 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
887 SND_SOC_DAPM_SUPPLY("TOCLK", WM8993_CLOCKING_1, 14, 0, NULL, 0),
888 SND_SOC_DAPM_SUPPLY("CLK_DSP", WM8993_CLOCKING_3, 0, 0, NULL, 0),
889 SND_SOC_DAPM_SUPPLY("VMID", SND_SOC_NOPM, 0, 0, NULL, 0),
890
891 SND_SOC_DAPM_ADC("ADCL", NULL, WM8993_POWER_MANAGEMENT_2, 1, 0),
892 SND_SOC_DAPM_ADC("ADCR", NULL, WM8993_POWER_MANAGEMENT_2, 0, 0),
893
894 SND_SOC_DAPM_MUX("AIFOUTL Mux", SND_SOC_NOPM, 0, 0, &aifoutl_mux),
895 SND_SOC_DAPM_MUX("AIFOUTR Mux", SND_SOC_NOPM, 0, 0, &aifoutr_mux),
896
897 SND_SOC_DAPM_AIF_OUT("AIFOUTL", "Capture", 0, SND_SOC_NOPM, 0, 0),
898 SND_SOC_DAPM_AIF_OUT("AIFOUTR", "Capture", 1, SND_SOC_NOPM, 0, 0),
899
900 SND_SOC_DAPM_AIF_IN("AIFINL", "Playback", 0, SND_SOC_NOPM, 0, 0),
901 SND_SOC_DAPM_AIF_IN("AIFINR", "Playback", 1, SND_SOC_NOPM, 0, 0),
902
903 SND_SOC_DAPM_MUX("DACL Mux", SND_SOC_NOPM, 0, 0, &aifinl_mux),
904 SND_SOC_DAPM_MUX("DACR Mux", SND_SOC_NOPM, 0, 0, &aifinr_mux),
905
906 SND_SOC_DAPM_MUX("DACL Sidetone", SND_SOC_NOPM, 0, 0, &sidetonel_mux),
907 SND_SOC_DAPM_MUX("DACR Sidetone", SND_SOC_NOPM, 0, 0, &sidetoner_mux),
908
909 SND_SOC_DAPM_DAC("DACL", NULL, WM8993_POWER_MANAGEMENT_3, 1, 0),
910 SND_SOC_DAPM_DAC("DACR", NULL, WM8993_POWER_MANAGEMENT_3, 0, 0),
911
912 SND_SOC_DAPM_MUX("Left Headphone Mux", SND_SOC_NOPM, 0, 0, &wm_hubs_hpl_mux),
913 SND_SOC_DAPM_MUX("Right Headphone Mux", SND_SOC_NOPM, 0, 0, &wm_hubs_hpr_mux),
914
915 SND_SOC_DAPM_MIXER("SPKL", WM8993_POWER_MANAGEMENT_3, 8, 0,
916 left_speaker_mixer, ARRAY_SIZE(left_speaker_mixer)),
917 SND_SOC_DAPM_MIXER("SPKR", WM8993_POWER_MANAGEMENT_3, 9, 0,
918 right_speaker_mixer, ARRAY_SIZE(right_speaker_mixer)),
919 SND_SOC_DAPM_PGA("Direct Voice", SND_SOC_NOPM, 0, 0, NULL, 0),
920 };
921
922 static const struct snd_soc_dapm_route routes[] = {
923 { "MICBIAS1", NULL, "VMID" },
924 { "MICBIAS2", NULL, "VMID" },
925
926 { "ADCL", NULL, "CLK_SYS" },
927 { "ADCL", NULL, "CLK_DSP" },
928 { "ADCR", NULL, "CLK_SYS" },
929 { "ADCR", NULL, "CLK_DSP" },
930
931 { "AIFOUTL Mux", "Left", "ADCL" },
932 { "AIFOUTL Mux", "Right", "ADCR" },
933 { "AIFOUTR Mux", "Left", "ADCL" },
934 { "AIFOUTR Mux", "Right", "ADCR" },
935
936 { "AIFOUTL", NULL, "AIFOUTL Mux" },
937 { "AIFOUTR", NULL, "AIFOUTR Mux" },
938
939 { "DACL Mux", "Left", "AIFINL" },
940 { "DACL Mux", "Right", "AIFINR" },
941 { "DACR Mux", "Left", "AIFINL" },
942 { "DACR Mux", "Right", "AIFINR" },
943
944 { "DACL Sidetone", "Left", "ADCL" },
945 { "DACL Sidetone", "Right", "ADCR" },
946 { "DACR Sidetone", "Left", "ADCL" },
947 { "DACR Sidetone", "Right", "ADCR" },
948
949 { "DACL", NULL, "CLK_SYS" },
950 { "DACL", NULL, "CLK_DSP" },
951 { "DACL", NULL, "DACL Mux" },
952 { "DACL", NULL, "DACL Sidetone" },
953 { "DACR", NULL, "CLK_SYS" },
954 { "DACR", NULL, "CLK_DSP" },
955 { "DACR", NULL, "DACR Mux" },
956 { "DACR", NULL, "DACR Sidetone" },
957
958 { "Left Output Mixer", "DAC Switch", "DACL" },
959
960 { "Right Output Mixer", "DAC Switch", "DACR" },
961
962 { "Left Output PGA", NULL, "CLK_SYS" },
963
964 { "Right Output PGA", NULL, "CLK_SYS" },
965
966 { "SPKL", "DAC Switch", "DACL" },
967 { "SPKL", NULL, "CLK_SYS" },
968
969 { "SPKR", "DAC Switch", "DACR" },
970 { "SPKR", NULL, "CLK_SYS" },
971
972 { "Left Headphone Mux", "DAC", "DACL" },
973 { "Right Headphone Mux", "DAC", "DACR" },
974 };
975
976 static int wm8993_set_bias_level(struct snd_soc_codec *codec,
977 enum snd_soc_bias_level level)
978 {
979 struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
980 int ret;
981
982 wm_hubs_set_bias_level(codec, level);
983
984 switch (level) {
985 case SND_SOC_BIAS_ON:
986 case SND_SOC_BIAS_PREPARE:
987 /* VMID=2*40k */
988 snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_1,
989 WM8993_VMID_SEL_MASK, 0x2);
990 snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_2,
991 WM8993_TSHUT_ENA, WM8993_TSHUT_ENA);
992 break;
993
994 case SND_SOC_BIAS_STANDBY:
995 if (codec->dapm.bias_level == SND_SOC_BIAS_OFF) {
996 ret = regulator_bulk_enable(ARRAY_SIZE(wm8993->supplies),
997 wm8993->supplies);
998 if (ret != 0)
999 return ret;
1000
1001 regcache_cache_only(wm8993->regmap, false);
1002 regcache_sync(wm8993->regmap);
1003
1004 wm_hubs_vmid_ena(codec);
1005
1006 /* Bring up VMID with fast soft start */
1007 snd_soc_update_bits(codec, WM8993_ANTIPOP2,
1008 WM8993_STARTUP_BIAS_ENA |
1009 WM8993_VMID_BUF_ENA |
1010 WM8993_VMID_RAMP_MASK |
1011 WM8993_BIAS_SRC,
1012 WM8993_STARTUP_BIAS_ENA |
1013 WM8993_VMID_BUF_ENA |
1014 WM8993_VMID_RAMP_MASK |
1015 WM8993_BIAS_SRC);
1016
1017 /* If either line output is single ended we
1018 * need the VMID buffer */
1019 if (!wm8993->pdata.lineout1_diff ||
1020 !wm8993->pdata.lineout2_diff)
1021 snd_soc_update_bits(codec, WM8993_ANTIPOP1,
1022 WM8993_LINEOUT_VMID_BUF_ENA,
1023 WM8993_LINEOUT_VMID_BUF_ENA);
1024
1025 /* VMID=2*40k */
1026 snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_1,
1027 WM8993_VMID_SEL_MASK |
1028 WM8993_BIAS_ENA,
1029 WM8993_BIAS_ENA | 0x2);
1030 msleep(32);
1031
1032 /* Switch to normal bias */
1033 snd_soc_update_bits(codec, WM8993_ANTIPOP2,
1034 WM8993_BIAS_SRC |
1035 WM8993_STARTUP_BIAS_ENA, 0);
1036 }
1037
1038 /* VMID=2*240k */
1039 snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_1,
1040 WM8993_VMID_SEL_MASK, 0x4);
1041
1042 snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_2,
1043 WM8993_TSHUT_ENA, 0);
1044 break;
1045
1046 case SND_SOC_BIAS_OFF:
1047 snd_soc_update_bits(codec, WM8993_ANTIPOP1,
1048 WM8993_LINEOUT_VMID_BUF_ENA, 0);
1049
1050 snd_soc_update_bits(codec, WM8993_POWER_MANAGEMENT_1,
1051 WM8993_VMID_SEL_MASK | WM8993_BIAS_ENA,
1052 0);
1053
1054 snd_soc_update_bits(codec, WM8993_ANTIPOP2,
1055 WM8993_STARTUP_BIAS_ENA |
1056 WM8993_VMID_BUF_ENA |
1057 WM8993_VMID_RAMP_MASK |
1058 WM8993_BIAS_SRC, 0);
1059
1060 regcache_cache_only(wm8993->regmap, true);
1061 regcache_mark_dirty(wm8993->regmap);
1062
1063 regulator_bulk_disable(ARRAY_SIZE(wm8993->supplies),
1064 wm8993->supplies);
1065 break;
1066 }
1067
1068 codec->dapm.bias_level = level;
1069
1070 return 0;
1071 }
1072
1073 static int wm8993_set_sysclk(struct snd_soc_dai *codec_dai,
1074 int clk_id, unsigned int freq, int dir)
1075 {
1076 struct snd_soc_codec *codec = codec_dai->codec;
1077 struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
1078
1079 switch (clk_id) {
1080 case WM8993_SYSCLK_MCLK:
1081 wm8993->mclk_rate = freq;
1082 case WM8993_SYSCLK_FLL:
1083 wm8993->sysclk_source = clk_id;
1084 break;
1085
1086 default:
1087 return -EINVAL;
1088 }
1089
1090 return 0;
1091 }
1092
1093 static int wm8993_set_dai_fmt(struct snd_soc_dai *dai,
1094 unsigned int fmt)
1095 {
1096 struct snd_soc_codec *codec = dai->codec;
1097 struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
1098 unsigned int aif1 = snd_soc_read(codec, WM8993_AUDIO_INTERFACE_1);
1099 unsigned int aif4 = snd_soc_read(codec, WM8993_AUDIO_INTERFACE_4);
1100
1101 aif1 &= ~(WM8993_BCLK_DIR | WM8993_AIF_BCLK_INV |
1102 WM8993_AIF_LRCLK_INV | WM8993_AIF_FMT_MASK);
1103 aif4 &= ~WM8993_LRCLK_DIR;
1104
1105 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1106 case SND_SOC_DAIFMT_CBS_CFS:
1107 wm8993->master = 0;
1108 break;
1109 case SND_SOC_DAIFMT_CBS_CFM:
1110 aif4 |= WM8993_LRCLK_DIR;
1111 wm8993->master = 1;
1112 break;
1113 case SND_SOC_DAIFMT_CBM_CFS:
1114 aif1 |= WM8993_BCLK_DIR;
1115 wm8993->master = 1;
1116 break;
1117 case SND_SOC_DAIFMT_CBM_CFM:
1118 aif1 |= WM8993_BCLK_DIR;
1119 aif4 |= WM8993_LRCLK_DIR;
1120 wm8993->master = 1;
1121 break;
1122 default:
1123 return -EINVAL;
1124 }
1125
1126 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1127 case SND_SOC_DAIFMT_DSP_B:
1128 aif1 |= WM8993_AIF_LRCLK_INV;
1129 case SND_SOC_DAIFMT_DSP_A:
1130 aif1 |= 0x18;
1131 break;
1132 case SND_SOC_DAIFMT_I2S:
1133 aif1 |= 0x10;
1134 break;
1135 case SND_SOC_DAIFMT_RIGHT_J:
1136 break;
1137 case SND_SOC_DAIFMT_LEFT_J:
1138 aif1 |= 0x8;
1139 break;
1140 default:
1141 return -EINVAL;
1142 }
1143
1144 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1145 case SND_SOC_DAIFMT_DSP_A:
1146 case SND_SOC_DAIFMT_DSP_B:
1147 /* frame inversion not valid for DSP modes */
1148 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1149 case SND_SOC_DAIFMT_NB_NF:
1150 break;
1151 case SND_SOC_DAIFMT_IB_NF:
1152 aif1 |= WM8993_AIF_BCLK_INV;
1153 break;
1154 default:
1155 return -EINVAL;
1156 }
1157 break;
1158
1159 case SND_SOC_DAIFMT_I2S:
1160 case SND_SOC_DAIFMT_RIGHT_J:
1161 case SND_SOC_DAIFMT_LEFT_J:
1162 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1163 case SND_SOC_DAIFMT_NB_NF:
1164 break;
1165 case SND_SOC_DAIFMT_IB_IF:
1166 aif1 |= WM8993_AIF_BCLK_INV | WM8993_AIF_LRCLK_INV;
1167 break;
1168 case SND_SOC_DAIFMT_IB_NF:
1169 aif1 |= WM8993_AIF_BCLK_INV;
1170 break;
1171 case SND_SOC_DAIFMT_NB_IF:
1172 aif1 |= WM8993_AIF_LRCLK_INV;
1173 break;
1174 default:
1175 return -EINVAL;
1176 }
1177 break;
1178 default:
1179 return -EINVAL;
1180 }
1181
1182 snd_soc_write(codec, WM8993_AUDIO_INTERFACE_1, aif1);
1183 snd_soc_write(codec, WM8993_AUDIO_INTERFACE_4, aif4);
1184
1185 return 0;
1186 }
1187
1188 static int wm8993_hw_params(struct snd_pcm_substream *substream,
1189 struct snd_pcm_hw_params *params,
1190 struct snd_soc_dai *dai)
1191 {
1192 struct snd_soc_codec *codec = dai->codec;
1193 struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
1194 int ret, i, best, best_val, cur_val;
1195 unsigned int clocking1, clocking3, aif1, aif4;
1196
1197 clocking1 = snd_soc_read(codec, WM8993_CLOCKING_1);
1198 clocking1 &= ~WM8993_BCLK_DIV_MASK;
1199
1200 clocking3 = snd_soc_read(codec, WM8993_CLOCKING_3);
1201 clocking3 &= ~(WM8993_CLK_SYS_RATE_MASK | WM8993_SAMPLE_RATE_MASK);
1202
1203 aif1 = snd_soc_read(codec, WM8993_AUDIO_INTERFACE_1);
1204 aif1 &= ~WM8993_AIF_WL_MASK;
1205
1206 aif4 = snd_soc_read(codec, WM8993_AUDIO_INTERFACE_4);
1207 aif4 &= ~WM8993_LRCLK_RATE_MASK;
1208
1209 /* What BCLK do we need? */
1210 wm8993->fs = params_rate(params);
1211 wm8993->bclk = 2 * wm8993->fs;
1212 if (wm8993->tdm_slots) {
1213 dev_dbg(codec->dev, "Configuring for %d %d bit TDM slots\n",
1214 wm8993->tdm_slots, wm8993->tdm_width);
1215 wm8993->bclk *= wm8993->tdm_width * wm8993->tdm_slots;
1216 } else {
1217 switch (params_format(params)) {
1218 case SNDRV_PCM_FORMAT_S16_LE:
1219 wm8993->bclk *= 16;
1220 break;
1221 case SNDRV_PCM_FORMAT_S20_3LE:
1222 wm8993->bclk *= 20;
1223 aif1 |= 0x8;
1224 break;
1225 case SNDRV_PCM_FORMAT_S24_LE:
1226 wm8993->bclk *= 24;
1227 aif1 |= 0x10;
1228 break;
1229 case SNDRV_PCM_FORMAT_S32_LE:
1230 wm8993->bclk *= 32;
1231 aif1 |= 0x18;
1232 break;
1233 default:
1234 return -EINVAL;
1235 }
1236 }
1237
1238 dev_dbg(codec->dev, "Target BCLK is %dHz\n", wm8993->bclk);
1239
1240 ret = configure_clock(codec);
1241 if (ret != 0)
1242 return ret;
1243
1244 /* Select nearest CLK_SYS_RATE */
1245 best = 0;
1246 best_val = abs((wm8993->sysclk_rate / clk_sys_rates[0].ratio)
1247 - wm8993->fs);
1248 for (i = 1; i < ARRAY_SIZE(clk_sys_rates); i++) {
1249 cur_val = abs((wm8993->sysclk_rate /
1250 clk_sys_rates[i].ratio) - wm8993->fs);
1251 if (cur_val < best_val) {
1252 best = i;
1253 best_val = cur_val;
1254 }
1255 }
1256 dev_dbg(codec->dev, "Selected CLK_SYS_RATIO of %d\n",
1257 clk_sys_rates[best].ratio);
1258 clocking3 |= (clk_sys_rates[best].clk_sys_rate
1259 << WM8993_CLK_SYS_RATE_SHIFT);
1260
1261 /* SAMPLE_RATE */
1262 best = 0;
1263 best_val = abs(wm8993->fs - sample_rates[0].rate);
1264 for (i = 1; i < ARRAY_SIZE(sample_rates); i++) {
1265 /* Closest match */
1266 cur_val = abs(wm8993->fs - sample_rates[i].rate);
1267 if (cur_val < best_val) {
1268 best = i;
1269 best_val = cur_val;
1270 }
1271 }
1272 dev_dbg(codec->dev, "Selected SAMPLE_RATE of %dHz\n",
1273 sample_rates[best].rate);
1274 clocking3 |= (sample_rates[best].sample_rate
1275 << WM8993_SAMPLE_RATE_SHIFT);
1276
1277 /* BCLK_DIV */
1278 best = 0;
1279 best_val = INT_MAX;
1280 for (i = 0; i < ARRAY_SIZE(bclk_divs); i++) {
1281 cur_val = ((wm8993->sysclk_rate * 10) / bclk_divs[i].div)
1282 - wm8993->bclk;
1283 if (cur_val < 0) /* Table is sorted */
1284 break;
1285 if (cur_val < best_val) {
1286 best = i;
1287 best_val = cur_val;
1288 }
1289 }
1290 wm8993->bclk = (wm8993->sysclk_rate * 10) / bclk_divs[best].div;
1291 dev_dbg(codec->dev, "Selected BCLK_DIV of %d for %dHz BCLK\n",
1292 bclk_divs[best].div, wm8993->bclk);
1293 clocking1 |= bclk_divs[best].bclk_div << WM8993_BCLK_DIV_SHIFT;
1294
1295 /* LRCLK is a simple fraction of BCLK */
1296 dev_dbg(codec->dev, "LRCLK_RATE is %d\n", wm8993->bclk / wm8993->fs);
1297 aif4 |= wm8993->bclk / wm8993->fs;
1298
1299 snd_soc_write(codec, WM8993_CLOCKING_1, clocking1);
1300 snd_soc_write(codec, WM8993_CLOCKING_3, clocking3);
1301 snd_soc_write(codec, WM8993_AUDIO_INTERFACE_1, aif1);
1302 snd_soc_write(codec, WM8993_AUDIO_INTERFACE_4, aif4);
1303
1304 /* ReTune Mobile? */
1305 if (wm8993->pdata.num_retune_configs) {
1306 u16 eq1 = snd_soc_read(codec, WM8993_EQ1);
1307 struct wm8993_retune_mobile_setting *s;
1308
1309 best = 0;
1310 best_val = abs(wm8993->pdata.retune_configs[0].rate
1311 - wm8993->fs);
1312 for (i = 0; i < wm8993->pdata.num_retune_configs; i++) {
1313 cur_val = abs(wm8993->pdata.retune_configs[i].rate
1314 - wm8993->fs);
1315 if (cur_val < best_val) {
1316 best_val = cur_val;
1317 best = i;
1318 }
1319 }
1320 s = &wm8993->pdata.retune_configs[best];
1321
1322 dev_dbg(codec->dev, "ReTune Mobile %s tuned for %dHz\n",
1323 s->name, s->rate);
1324
1325 /* Disable EQ while we reconfigure */
1326 snd_soc_update_bits(codec, WM8993_EQ1, WM8993_EQ_ENA, 0);
1327
1328 for (i = 1; i < ARRAY_SIZE(s->config); i++)
1329 snd_soc_write(codec, WM8993_EQ1 + i, s->config[i]);
1330
1331 snd_soc_update_bits(codec, WM8993_EQ1, WM8993_EQ_ENA, eq1);
1332 }
1333
1334 return 0;
1335 }
1336
1337 static int wm8993_digital_mute(struct snd_soc_dai *codec_dai, int mute)
1338 {
1339 struct snd_soc_codec *codec = codec_dai->codec;
1340 unsigned int reg;
1341
1342 reg = snd_soc_read(codec, WM8993_DAC_CTRL);
1343
1344 if (mute)
1345 reg |= WM8993_DAC_MUTE;
1346 else
1347 reg &= ~WM8993_DAC_MUTE;
1348
1349 snd_soc_write(codec, WM8993_DAC_CTRL, reg);
1350
1351 return 0;
1352 }
1353
1354 static int wm8993_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
1355 unsigned int rx_mask, int slots, int slot_width)
1356 {
1357 struct snd_soc_codec *codec = dai->codec;
1358 struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
1359 int aif1 = 0;
1360 int aif2 = 0;
1361
1362 /* Don't need to validate anything if we're turning off TDM */
1363 if (slots == 0) {
1364 wm8993->tdm_slots = 0;
1365 goto out;
1366 }
1367
1368 /* Note that we allow configurations we can't handle ourselves -
1369 * for example, we can generate clocks for slots 2 and up even if
1370 * we can't use those slots ourselves.
1371 */
1372 aif1 |= WM8993_AIFADC_TDM;
1373 aif2 |= WM8993_AIFDAC_TDM;
1374
1375 switch (rx_mask) {
1376 case 3:
1377 break;
1378 case 0xc:
1379 aif1 |= WM8993_AIFADC_TDM_CHAN;
1380 break;
1381 default:
1382 return -EINVAL;
1383 }
1384
1385
1386 switch (tx_mask) {
1387 case 3:
1388 break;
1389 case 0xc:
1390 aif2 |= WM8993_AIFDAC_TDM_CHAN;
1391 break;
1392 default:
1393 return -EINVAL;
1394 }
1395
1396 out:
1397 wm8993->tdm_width = slot_width;
1398 wm8993->tdm_slots = slots / 2;
1399
1400 snd_soc_update_bits(codec, WM8993_AUDIO_INTERFACE_1,
1401 WM8993_AIFADC_TDM | WM8993_AIFADC_TDM_CHAN, aif1);
1402 snd_soc_update_bits(codec, WM8993_AUDIO_INTERFACE_2,
1403 WM8993_AIFDAC_TDM | WM8993_AIFDAC_TDM_CHAN, aif2);
1404
1405 return 0;
1406 }
1407
1408 static irqreturn_t wm8993_irq(int irq, void *data)
1409 {
1410 struct wm8993_priv *wm8993 = data;
1411 int mask, val, ret;
1412
1413 ret = regmap_read(wm8993->regmap, WM8993_GPIO_CTRL_1, &val);
1414 if (ret != 0) {
1415 dev_err(wm8993->dev, "Failed to read interrupt status: %d\n",
1416 ret);
1417 return IRQ_NONE;
1418 }
1419
1420 ret = regmap_read(wm8993->regmap, WM8993_GPIOCTRL_2, &mask);
1421 if (ret != 0) {
1422 dev_err(wm8993->dev, "Failed to read interrupt mask: %d\n",
1423 ret);
1424 return IRQ_NONE;
1425 }
1426
1427 /* The IRQ pin status is visible in the register too */
1428 val &= ~(mask | WM8993_IRQ);
1429 if (!val)
1430 return IRQ_NONE;
1431
1432 if (val & WM8993_TEMPOK_EINT)
1433 dev_crit(wm8993->dev, "Thermal warning\n");
1434
1435 if (val & WM8993_FLL_LOCK_EINT) {
1436 dev_dbg(wm8993->dev, "FLL locked\n");
1437 complete(&wm8993->fll_lock);
1438 }
1439
1440 ret = regmap_write(wm8993->regmap, WM8993_GPIO_CTRL_1, val);
1441 if (ret != 0)
1442 dev_err(wm8993->dev, "Failed to ack interrupt: %d\n", ret);
1443
1444 return IRQ_HANDLED;
1445 }
1446
1447 static const struct snd_soc_dai_ops wm8993_ops = {
1448 .set_sysclk = wm8993_set_sysclk,
1449 .set_fmt = wm8993_set_dai_fmt,
1450 .hw_params = wm8993_hw_params,
1451 .digital_mute = wm8993_digital_mute,
1452 .set_pll = wm8993_set_fll,
1453 .set_tdm_slot = wm8993_set_tdm_slot,
1454 };
1455
1456 #define WM8993_RATES SNDRV_PCM_RATE_8000_48000
1457
1458 #define WM8993_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
1459 SNDRV_PCM_FMTBIT_S20_3LE |\
1460 SNDRV_PCM_FMTBIT_S24_LE |\
1461 SNDRV_PCM_FMTBIT_S32_LE)
1462
1463 static struct snd_soc_dai_driver wm8993_dai = {
1464 .name = "wm8993-hifi",
1465 .playback = {
1466 .stream_name = "Playback",
1467 .channels_min = 1,
1468 .channels_max = 2,
1469 .rates = WM8993_RATES,
1470 .formats = WM8993_FORMATS,
1471 .sig_bits = 24,
1472 },
1473 .capture = {
1474 .stream_name = "Capture",
1475 .channels_min = 1,
1476 .channels_max = 2,
1477 .rates = WM8993_RATES,
1478 .formats = WM8993_FORMATS,
1479 .sig_bits = 24,
1480 },
1481 .ops = &wm8993_ops,
1482 .symmetric_rates = 1,
1483 };
1484
1485 static int wm8993_probe(struct snd_soc_codec *codec)
1486 {
1487 struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
1488 struct snd_soc_dapm_context *dapm = &codec->dapm;
1489 int ret;
1490
1491 wm8993->hubs_data.hp_startup_mode = 1;
1492 wm8993->hubs_data.dcs_codes_l = -2;
1493 wm8993->hubs_data.dcs_codes_r = -2;
1494 wm8993->hubs_data.series_startup = 1;
1495
1496 codec->control_data = wm8993->regmap;
1497 ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_REGMAP);
1498 if (ret != 0) {
1499 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
1500 return ret;
1501 }
1502
1503 /* Latch volume update bits and default ZC on */
1504 snd_soc_update_bits(codec, WM8993_RIGHT_DAC_DIGITAL_VOLUME,
1505 WM8993_DAC_VU, WM8993_DAC_VU);
1506 snd_soc_update_bits(codec, WM8993_RIGHT_ADC_DIGITAL_VOLUME,
1507 WM8993_ADC_VU, WM8993_ADC_VU);
1508
1509 /* Manualy manage the HPOUT sequencing for independent stereo
1510 * control. */
1511 snd_soc_update_bits(codec, WM8993_ANALOGUE_HP_0,
1512 WM8993_HPOUT1_AUTO_PU, 0);
1513
1514 /* Use automatic clock configuration */
1515 snd_soc_update_bits(codec, WM8993_CLOCKING_4, WM8993_SR_MODE, 0);
1516
1517 wm_hubs_handle_analogue_pdata(codec, wm8993->pdata.lineout1_diff,
1518 wm8993->pdata.lineout2_diff,
1519 wm8993->pdata.lineout1fb,
1520 wm8993->pdata.lineout2fb,
1521 wm8993->pdata.jd_scthr,
1522 wm8993->pdata.jd_thr,
1523 wm8993->pdata.micbias1_delay,
1524 wm8993->pdata.micbias2_delay,
1525 wm8993->pdata.micbias1_lvl,
1526 wm8993->pdata.micbias2_lvl);
1527
1528 ret = wm8993_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1529 if (ret != 0)
1530 return ret;
1531
1532 snd_soc_add_codec_controls(codec, wm8993_snd_controls,
1533 ARRAY_SIZE(wm8993_snd_controls));
1534 if (wm8993->pdata.num_retune_configs != 0) {
1535 dev_dbg(codec->dev, "Using ReTune Mobile\n");
1536 } else {
1537 dev_dbg(codec->dev, "No ReTune Mobile, using normal EQ\n");
1538 snd_soc_add_codec_controls(codec, wm8993_eq_controls,
1539 ARRAY_SIZE(wm8993_eq_controls));
1540 }
1541
1542 snd_soc_dapm_new_controls(dapm, wm8993_dapm_widgets,
1543 ARRAY_SIZE(wm8993_dapm_widgets));
1544 wm_hubs_add_analogue_controls(codec);
1545
1546 snd_soc_dapm_add_routes(dapm, routes, ARRAY_SIZE(routes));
1547 wm_hubs_add_analogue_routes(codec, wm8993->pdata.lineout1_diff,
1548 wm8993->pdata.lineout2_diff);
1549
1550 /* If the line outputs are differential then we aren't presenting
1551 * VMID as an output and can disable it.
1552 */
1553 if (wm8993->pdata.lineout1_diff && wm8993->pdata.lineout2_diff)
1554 codec->dapm.idle_bias_off = 1;
1555
1556 return 0;
1557
1558 }
1559
1560 static int wm8993_remove(struct snd_soc_codec *codec)
1561 {
1562 struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
1563
1564 wm8993_set_bias_level(codec, SND_SOC_BIAS_OFF);
1565 regulator_bulk_free(ARRAY_SIZE(wm8993->supplies), wm8993->supplies);
1566 return 0;
1567 }
1568
1569 #ifdef CONFIG_PM
1570 static int wm8993_suspend(struct snd_soc_codec *codec)
1571 {
1572 struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
1573 int fll_fout = wm8993->fll_fout;
1574 int fll_fref = wm8993->fll_fref;
1575 int ret;
1576
1577 /* Stop the FLL in an orderly fashion */
1578 ret = _wm8993_set_fll(codec, 0, 0, 0, 0);
1579 if (ret != 0) {
1580 dev_err(codec->dev, "Failed to stop FLL\n");
1581 return ret;
1582 }
1583
1584 wm8993->fll_fout = fll_fout;
1585 wm8993->fll_fref = fll_fref;
1586
1587 wm8993_set_bias_level(codec, SND_SOC_BIAS_OFF);
1588
1589 return 0;
1590 }
1591
1592 static int wm8993_resume(struct snd_soc_codec *codec)
1593 {
1594 struct wm8993_priv *wm8993 = snd_soc_codec_get_drvdata(codec);
1595 int ret;
1596
1597 wm8993_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1598
1599 /* Restart the FLL? */
1600 if (wm8993->fll_fout) {
1601 int fll_fout = wm8993->fll_fout;
1602 int fll_fref = wm8993->fll_fref;
1603
1604 wm8993->fll_fref = 0;
1605 wm8993->fll_fout = 0;
1606
1607 ret = _wm8993_set_fll(codec, 0, wm8993->fll_src,
1608 fll_fref, fll_fout);
1609 if (ret != 0)
1610 dev_err(codec->dev, "Failed to restart FLL\n");
1611 }
1612
1613 return 0;
1614 }
1615 #else
1616 #define wm8993_suspend NULL
1617 #define wm8993_resume NULL
1618 #endif
1619
1620 /* Tune DC servo configuration */
1621 static struct reg_default wm8993_regmap_patch[] = {
1622 { 0x44, 3 },
1623 { 0x56, 3 },
1624 { 0x44, 0 },
1625 };
1626
1627 static const struct regmap_config wm8993_regmap = {
1628 .reg_bits = 8,
1629 .val_bits = 16,
1630
1631 .max_register = WM8993_MAX_REGISTER,
1632 .volatile_reg = wm8993_volatile,
1633 .readable_reg = wm8993_readable,
1634
1635 .cache_type = REGCACHE_RBTREE,
1636 .reg_defaults = wm8993_reg_defaults,
1637 .num_reg_defaults = ARRAY_SIZE(wm8993_reg_defaults),
1638 };
1639
1640 static struct snd_soc_codec_driver soc_codec_dev_wm8993 = {
1641 .probe = wm8993_probe,
1642 .remove = wm8993_remove,
1643 .suspend = wm8993_suspend,
1644 .resume = wm8993_resume,
1645 .set_bias_level = wm8993_set_bias_level,
1646 };
1647
1648 static int wm8993_i2c_probe(struct i2c_client *i2c,
1649 const struct i2c_device_id *id)
1650 {
1651 struct wm8993_priv *wm8993;
1652 unsigned int reg;
1653 int ret, i;
1654
1655 wm8993 = devm_kzalloc(&i2c->dev, sizeof(struct wm8993_priv),
1656 GFP_KERNEL);
1657 if (wm8993 == NULL)
1658 return -ENOMEM;
1659
1660 wm8993->dev = &i2c->dev;
1661 init_completion(&wm8993->fll_lock);
1662
1663 wm8993->regmap = devm_regmap_init_i2c(i2c, &wm8993_regmap);
1664 if (IS_ERR(wm8993->regmap)) {
1665 ret = PTR_ERR(wm8993->regmap);
1666 dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret);
1667 return ret;
1668 }
1669
1670 i2c_set_clientdata(i2c, wm8993);
1671
1672 for (i = 0; i < ARRAY_SIZE(wm8993->supplies); i++)
1673 wm8993->supplies[i].supply = wm8993_supply_names[i];
1674
1675 ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8993->supplies),
1676 wm8993->supplies);
1677 if (ret != 0) {
1678 dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret);
1679 return ret;
1680 }
1681
1682 ret = regulator_bulk_enable(ARRAY_SIZE(wm8993->supplies),
1683 wm8993->supplies);
1684 if (ret != 0) {
1685 dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret);
1686 return ret;
1687 }
1688
1689 ret = regmap_read(wm8993->regmap, WM8993_SOFTWARE_RESET, &reg);
1690 if (ret != 0) {
1691 dev_err(&i2c->dev, "Failed to read chip ID: %d\n", ret);
1692 goto err_enable;
1693 }
1694
1695 if (reg != 0x8993) {
1696 dev_err(&i2c->dev, "Invalid ID register value %x\n", reg);
1697 ret = -EINVAL;
1698 goto err_enable;
1699 }
1700
1701 ret = regmap_write(wm8993->regmap, WM8993_SOFTWARE_RESET, 0xffff);
1702 if (ret != 0)
1703 goto err_enable;
1704
1705 ret = regmap_register_patch(wm8993->regmap, wm8993_regmap_patch,
1706 ARRAY_SIZE(wm8993_regmap_patch));
1707 if (ret != 0)
1708 dev_warn(wm8993->dev, "Failed to apply regmap patch: %d\n",
1709 ret);
1710
1711 if (i2c->irq) {
1712 /* Put GPIO1 into interrupt mode (only GPIO1 can output IRQ) */
1713 ret = regmap_update_bits(wm8993->regmap, WM8993_GPIO1,
1714 WM8993_GPIO1_PD |
1715 WM8993_GPIO1_SEL_MASK, 7);
1716 if (ret != 0)
1717 goto err_enable;
1718
1719 ret = request_threaded_irq(i2c->irq, NULL, wm8993_irq,
1720 IRQF_TRIGGER_HIGH | IRQF_ONESHOT,
1721 "wm8993", wm8993);
1722 if (ret != 0)
1723 goto err_enable;
1724
1725 }
1726
1727 regulator_bulk_disable(ARRAY_SIZE(wm8993->supplies), wm8993->supplies);
1728
1729 regcache_cache_only(wm8993->regmap, true);
1730
1731 ret = snd_soc_register_codec(&i2c->dev,
1732 &soc_codec_dev_wm8993, &wm8993_dai, 1);
1733 if (ret != 0) {
1734 dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
1735 goto err_irq;
1736 }
1737
1738 return 0;
1739
1740 err_irq:
1741 if (i2c->irq)
1742 free_irq(i2c->irq, wm8993);
1743 err_enable:
1744 regulator_bulk_disable(ARRAY_SIZE(wm8993->supplies), wm8993->supplies);
1745 return ret;
1746 }
1747
1748 static int wm8993_i2c_remove(struct i2c_client *i2c)
1749 {
1750 struct wm8993_priv *wm8993 = i2c_get_clientdata(i2c);
1751
1752 snd_soc_unregister_codec(&i2c->dev);
1753 if (i2c->irq)
1754 free_irq(i2c->irq, wm8993);
1755 regulator_bulk_disable(ARRAY_SIZE(wm8993->supplies), wm8993->supplies);
1756
1757 return 0;
1758 }
1759
1760 static const struct i2c_device_id wm8993_i2c_id[] = {
1761 { "wm8993", 0 },
1762 { }
1763 };
1764 MODULE_DEVICE_TABLE(i2c, wm8993_i2c_id);
1765
1766 static struct i2c_driver wm8993_i2c_driver = {
1767 .driver = {
1768 .name = "wm8993",
1769 .owner = THIS_MODULE,
1770 },
1771 .probe = wm8993_i2c_probe,
1772 .remove = wm8993_i2c_remove,
1773 .id_table = wm8993_i2c_id,
1774 };
1775
1776 module_i2c_driver(wm8993_i2c_driver);
1777
1778 MODULE_DESCRIPTION("ASoC WM8993 driver");
1779 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
1780 MODULE_LICENSE("GPL");
Linux with added FPC-III support