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x86/speculation/mds: Fix documentation typo
[linux/fpc-iii.git] / sound / soc / codecs / wm8904.c
blob4fd350e8420dd80471ee862a0793548ab0d9edf9
1 /*
2 * wm8904.c -- WM8904 ALSA SoC Audio driver
3 *
4 * Copyright 2009-12 Wolfson Microelectronics plc
5 *
6 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
7 *
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License version 2 as
11 * published by the Free Software Foundation.
12 */
13
14 #include <linux/clk.h>
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/regulator/consumer.h>
23 #include <linux/slab.h>
24 #include <sound/core.h>
25 #include <sound/pcm.h>
26 #include <sound/pcm_params.h>
27 #include <sound/soc.h>
28 #include <sound/initval.h>
29 #include <sound/tlv.h>
30 #include <sound/wm8904.h>
31
32 #include "wm8904.h"
33
34 enum wm8904_type {
35 WM8904,
36 WM8912,
37 };
38
39 #define WM8904_NUM_DCS_CHANNELS 4
40
41 #define WM8904_NUM_SUPPLIES 5
42 static const char *wm8904_supply_names[WM8904_NUM_SUPPLIES] = {
43 "DCVDD",
44 "DBVDD",
45 "AVDD",
46 "CPVDD",
47 "MICVDD",
48 };
49
50 /* codec private data */
51 struct wm8904_priv {
52 struct regmap *regmap;
53 struct clk *mclk;
54
55 enum wm8904_type devtype;
56
57 struct regulator_bulk_data supplies[WM8904_NUM_SUPPLIES];
58
59 struct wm8904_pdata *pdata;
60
61 int deemph;
62
63 /* Platform provided DRC configuration */
64 const char **drc_texts;
65 int drc_cfg;
66 struct soc_enum drc_enum;
67
68 /* Platform provided ReTune mobile configuration */
69 int num_retune_mobile_texts;
70 const char **retune_mobile_texts;
71 int retune_mobile_cfg;
72 struct soc_enum retune_mobile_enum;
73
74 /* FLL setup */
75 int fll_src;
76 int fll_fref;
77 int fll_fout;
78
79 /* Clocking configuration */
80 unsigned int mclk_rate;
81 int sysclk_src;
82 unsigned int sysclk_rate;
83
84 int tdm_width;
85 int tdm_slots;
86 int bclk;
87 int fs;
88
89 /* DC servo configuration - cached offset values */
90 int dcs_state[WM8904_NUM_DCS_CHANNELS];
91 };
92
93 static const struct reg_default wm8904_reg_defaults[] = {
94 { 4, 0x0018 }, /* R4 - Bias Control 0 */
95 { 5, 0x0000 }, /* R5 - VMID Control 0 */
96 { 6, 0x0000 }, /* R6 - Mic Bias Control 0 */
97 { 7, 0x0000 }, /* R7 - Mic Bias Control 1 */
98 { 8, 0x0001 }, /* R8 - Analogue DAC 0 */
99 { 9, 0x9696 }, /* R9 - mic Filter Control */
100 { 10, 0x0001 }, /* R10 - Analogue ADC 0 */
101 { 12, 0x0000 }, /* R12 - Power Management 0 */
102 { 14, 0x0000 }, /* R14 - Power Management 2 */
103 { 15, 0x0000 }, /* R15 - Power Management 3 */
104 { 18, 0x0000 }, /* R18 - Power Management 6 */
105 { 20, 0x945E }, /* R20 - Clock Rates 0 */
106 { 21, 0x0C05 }, /* R21 - Clock Rates 1 */
107 { 22, 0x0006 }, /* R22 - Clock Rates 2 */
108 { 24, 0x0050 }, /* R24 - Audio Interface 0 */
109 { 25, 0x000A }, /* R25 - Audio Interface 1 */
110 { 26, 0x00E4 }, /* R26 - Audio Interface 2 */
111 { 27, 0x0040 }, /* R27 - Audio Interface 3 */
112 { 30, 0x00C0 }, /* R30 - DAC Digital Volume Left */
113 { 31, 0x00C0 }, /* R31 - DAC Digital Volume Right */
114 { 32, 0x0000 }, /* R32 - DAC Digital 0 */
115 { 33, 0x0008 }, /* R33 - DAC Digital 1 */
116 { 36, 0x00C0 }, /* R36 - ADC Digital Volume Left */
117 { 37, 0x00C0 }, /* R37 - ADC Digital Volume Right */
118 { 38, 0x0010 }, /* R38 - ADC Digital 0 */
119 { 39, 0x0000 }, /* R39 - Digital Microphone 0 */
120 { 40, 0x01AF }, /* R40 - DRC 0 */
121 { 41, 0x3248 }, /* R41 - DRC 1 */
122 { 42, 0x0000 }, /* R42 - DRC 2 */
123 { 43, 0x0000 }, /* R43 - DRC 3 */
124 { 44, 0x0085 }, /* R44 - Analogue Left Input 0 */
125 { 45, 0x0085 }, /* R45 - Analogue Right Input 0 */
126 { 46, 0x0044 }, /* R46 - Analogue Left Input 1 */
127 { 47, 0x0044 }, /* R47 - Analogue Right Input 1 */
128 { 57, 0x002D }, /* R57 - Analogue OUT1 Left */
129 { 58, 0x002D }, /* R58 - Analogue OUT1 Right */
130 { 59, 0x0039 }, /* R59 - Analogue OUT2 Left */
131 { 60, 0x0039 }, /* R60 - Analogue OUT2 Right */
132 { 61, 0x0000 }, /* R61 - Analogue OUT12 ZC */
133 { 67, 0x0000 }, /* R67 - DC Servo 0 */
134 { 69, 0xAAAA }, /* R69 - DC Servo 2 */
135 { 71, 0xAAAA }, /* R71 - DC Servo 4 */
136 { 72, 0xAAAA }, /* R72 - DC Servo 5 */
137 { 90, 0x0000 }, /* R90 - Analogue HP 0 */
138 { 94, 0x0000 }, /* R94 - Analogue Lineout 0 */
139 { 98, 0x0000 }, /* R98 - Charge Pump 0 */
140 { 104, 0x0004 }, /* R104 - Class W 0 */
141 { 108, 0x0000 }, /* R108 - Write Sequencer 0 */
142 { 109, 0x0000 }, /* R109 - Write Sequencer 1 */
143 { 110, 0x0000 }, /* R110 - Write Sequencer 2 */
144 { 111, 0x0000 }, /* R111 - Write Sequencer 3 */
145 { 112, 0x0000 }, /* R112 - Write Sequencer 4 */
146 { 116, 0x0000 }, /* R116 - FLL Control 1 */
147 { 117, 0x0007 }, /* R117 - FLL Control 2 */
148 { 118, 0x0000 }, /* R118 - FLL Control 3 */
149 { 119, 0x2EE0 }, /* R119 - FLL Control 4 */
150 { 120, 0x0004 }, /* R120 - FLL Control 5 */
151 { 121, 0x0014 }, /* R121 - GPIO Control 1 */
152 { 122, 0x0010 }, /* R122 - GPIO Control 2 */
153 { 123, 0x0010 }, /* R123 - GPIO Control 3 */
154 { 124, 0x0000 }, /* R124 - GPIO Control 4 */
155 { 126, 0x0000 }, /* R126 - Digital Pulls */
156 { 128, 0xFFFF }, /* R128 - Interrupt Status Mask */
157 { 129, 0x0000 }, /* R129 - Interrupt Polarity */
158 { 130, 0x0000 }, /* R130 - Interrupt Debounce */
159 { 134, 0x0000 }, /* R134 - EQ1 */
160 { 135, 0x000C }, /* R135 - EQ2 */
161 { 136, 0x000C }, /* R136 - EQ3 */
162 { 137, 0x000C }, /* R137 - EQ4 */
163 { 138, 0x000C }, /* R138 - EQ5 */
164 { 139, 0x000C }, /* R139 - EQ6 */
165 { 140, 0x0FCA }, /* R140 - EQ7 */
166 { 141, 0x0400 }, /* R141 - EQ8 */
167 { 142, 0x00D8 }, /* R142 - EQ9 */
168 { 143, 0x1EB5 }, /* R143 - EQ10 */
169 { 144, 0xF145 }, /* R144 - EQ11 */
170 { 145, 0x0B75 }, /* R145 - EQ12 */
171 { 146, 0x01C5 }, /* R146 - EQ13 */
172 { 147, 0x1C58 }, /* R147 - EQ14 */
173 { 148, 0xF373 }, /* R148 - EQ15 */
174 { 149, 0x0A54 }, /* R149 - EQ16 */
175 { 150, 0x0558 }, /* R150 - EQ17 */
176 { 151, 0x168E }, /* R151 - EQ18 */
177 { 152, 0xF829 }, /* R152 - EQ19 */
178 { 153, 0x07AD }, /* R153 - EQ20 */
179 { 154, 0x1103 }, /* R154 - EQ21 */
180 { 155, 0x0564 }, /* R155 - EQ22 */
181 { 156, 0x0559 }, /* R156 - EQ23 */
182 { 157, 0x4000 }, /* R157 - EQ24 */
183 { 161, 0x0000 }, /* R161 - Control Interface Test 1 */
184 { 204, 0x0000 }, /* R204 - Analogue Output Bias 0 */
185 { 247, 0x0000 }, /* R247 - FLL NCO Test 0 */
186 { 248, 0x0019 }, /* R248 - FLL NCO Test 1 */
187 };
188
189 static bool wm8904_volatile_register(struct device *dev, unsigned int reg)
190 {
191 switch (reg) {
192 case WM8904_SW_RESET_AND_ID:
193 case WM8904_REVISION:
194 case WM8904_DC_SERVO_1:
195 case WM8904_DC_SERVO_6:
196 case WM8904_DC_SERVO_7:
197 case WM8904_DC_SERVO_8:
198 case WM8904_DC_SERVO_9:
199 case WM8904_DC_SERVO_READBACK_0:
200 case WM8904_INTERRUPT_STATUS:
201 return true;
202 default:
203 return false;
204 }
205 }
206
207 static bool wm8904_readable_register(struct device *dev, unsigned int reg)
208 {
209 switch (reg) {
210 case WM8904_SW_RESET_AND_ID:
211 case WM8904_REVISION:
212 case WM8904_BIAS_CONTROL_0:
213 case WM8904_VMID_CONTROL_0:
214 case WM8904_MIC_BIAS_CONTROL_0:
215 case WM8904_MIC_BIAS_CONTROL_1:
216 case WM8904_ANALOGUE_DAC_0:
217 case WM8904_MIC_FILTER_CONTROL:
218 case WM8904_ANALOGUE_ADC_0:
219 case WM8904_POWER_MANAGEMENT_0:
220 case WM8904_POWER_MANAGEMENT_2:
221 case WM8904_POWER_MANAGEMENT_3:
222 case WM8904_POWER_MANAGEMENT_6:
223 case WM8904_CLOCK_RATES_0:
224 case WM8904_CLOCK_RATES_1:
225 case WM8904_CLOCK_RATES_2:
226 case WM8904_AUDIO_INTERFACE_0:
227 case WM8904_AUDIO_INTERFACE_1:
228 case WM8904_AUDIO_INTERFACE_2:
229 case WM8904_AUDIO_INTERFACE_3:
230 case WM8904_DAC_DIGITAL_VOLUME_LEFT:
231 case WM8904_DAC_DIGITAL_VOLUME_RIGHT:
232 case WM8904_DAC_DIGITAL_0:
233 case WM8904_DAC_DIGITAL_1:
234 case WM8904_ADC_DIGITAL_VOLUME_LEFT:
235 case WM8904_ADC_DIGITAL_VOLUME_RIGHT:
236 case WM8904_ADC_DIGITAL_0:
237 case WM8904_DIGITAL_MICROPHONE_0:
238 case WM8904_DRC_0:
239 case WM8904_DRC_1:
240 case WM8904_DRC_2:
241 case WM8904_DRC_3:
242 case WM8904_ANALOGUE_LEFT_INPUT_0:
243 case WM8904_ANALOGUE_RIGHT_INPUT_0:
244 case WM8904_ANALOGUE_LEFT_INPUT_1:
245 case WM8904_ANALOGUE_RIGHT_INPUT_1:
246 case WM8904_ANALOGUE_OUT1_LEFT:
247 case WM8904_ANALOGUE_OUT1_RIGHT:
248 case WM8904_ANALOGUE_OUT2_LEFT:
249 case WM8904_ANALOGUE_OUT2_RIGHT:
250 case WM8904_ANALOGUE_OUT12_ZC:
251 case WM8904_DC_SERVO_0:
252 case WM8904_DC_SERVO_1:
253 case WM8904_DC_SERVO_2:
254 case WM8904_DC_SERVO_4:
255 case WM8904_DC_SERVO_5:
256 case WM8904_DC_SERVO_6:
257 case WM8904_DC_SERVO_7:
258 case WM8904_DC_SERVO_8:
259 case WM8904_DC_SERVO_9:
260 case WM8904_DC_SERVO_READBACK_0:
261 case WM8904_ANALOGUE_HP_0:
262 case WM8904_ANALOGUE_LINEOUT_0:
263 case WM8904_CHARGE_PUMP_0:
264 case WM8904_CLASS_W_0:
265 case WM8904_WRITE_SEQUENCER_0:
266 case WM8904_WRITE_SEQUENCER_1:
267 case WM8904_WRITE_SEQUENCER_2:
268 case WM8904_WRITE_SEQUENCER_3:
269 case WM8904_WRITE_SEQUENCER_4:
270 case WM8904_FLL_CONTROL_1:
271 case WM8904_FLL_CONTROL_2:
272 case WM8904_FLL_CONTROL_3:
273 case WM8904_FLL_CONTROL_4:
274 case WM8904_FLL_CONTROL_5:
275 case WM8904_GPIO_CONTROL_1:
276 case WM8904_GPIO_CONTROL_2:
277 case WM8904_GPIO_CONTROL_3:
278 case WM8904_GPIO_CONTROL_4:
279 case WM8904_DIGITAL_PULLS:
280 case WM8904_INTERRUPT_STATUS:
281 case WM8904_INTERRUPT_STATUS_MASK:
282 case WM8904_INTERRUPT_POLARITY:
283 case WM8904_INTERRUPT_DEBOUNCE:
284 case WM8904_EQ1:
285 case WM8904_EQ2:
286 case WM8904_EQ3:
287 case WM8904_EQ4:
288 case WM8904_EQ5:
289 case WM8904_EQ6:
290 case WM8904_EQ7:
291 case WM8904_EQ8:
292 case WM8904_EQ9:
293 case WM8904_EQ10:
294 case WM8904_EQ11:
295 case WM8904_EQ12:
296 case WM8904_EQ13:
297 case WM8904_EQ14:
298 case WM8904_EQ15:
299 case WM8904_EQ16:
300 case WM8904_EQ17:
301 case WM8904_EQ18:
302 case WM8904_EQ19:
303 case WM8904_EQ20:
304 case WM8904_EQ21:
305 case WM8904_EQ22:
306 case WM8904_EQ23:
307 case WM8904_EQ24:
308 case WM8904_CONTROL_INTERFACE_TEST_1:
309 case WM8904_ADC_TEST_0:
310 case WM8904_ANALOGUE_OUTPUT_BIAS_0:
311 case WM8904_FLL_NCO_TEST_0:
312 case WM8904_FLL_NCO_TEST_1:
313 return true;
314 default:
315 return false;
316 }
317 }
318
319 static int wm8904_configure_clocking(struct snd_soc_codec *codec)
320 {
321 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
322 unsigned int clock0, clock2, rate;
323
324 /* Gate the clock while we're updating to avoid misclocking */
325 clock2 = snd_soc_read(codec, WM8904_CLOCK_RATES_2);
326 snd_soc_update_bits(codec, WM8904_CLOCK_RATES_2,
327 WM8904_SYSCLK_SRC, 0);
328
329 /* This should be done on init() for bypass paths */
330 switch (wm8904->sysclk_src) {
331 case WM8904_CLK_MCLK:
332 dev_dbg(codec->dev, "Using %dHz MCLK\n", wm8904->mclk_rate);
333
334 clock2 &= ~WM8904_SYSCLK_SRC;
335 rate = wm8904->mclk_rate;
336
337 /* Ensure the FLL is stopped */
338 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
339 WM8904_FLL_OSC_ENA | WM8904_FLL_ENA, 0);
340 break;
341
342 case WM8904_CLK_FLL:
343 dev_dbg(codec->dev, "Using %dHz FLL clock\n",
344 wm8904->fll_fout);
345
346 clock2 |= WM8904_SYSCLK_SRC;
347 rate = wm8904->fll_fout;
348 break;
349
350 default:
351 dev_err(codec->dev, "System clock not configured\n");
352 return -EINVAL;
353 }
354
355 /* SYSCLK shouldn't be over 13.5MHz */
356 if (rate > 13500000) {
357 clock0 = WM8904_MCLK_DIV;
358 wm8904->sysclk_rate = rate / 2;
359 } else {
360 clock0 = 0;
361 wm8904->sysclk_rate = rate;
362 }
363
364 snd_soc_update_bits(codec, WM8904_CLOCK_RATES_0, WM8904_MCLK_DIV,
365 clock0);
366
367 snd_soc_update_bits(codec, WM8904_CLOCK_RATES_2,
368 WM8904_CLK_SYS_ENA | WM8904_SYSCLK_SRC, clock2);
369
370 dev_dbg(codec->dev, "CLK_SYS is %dHz\n", wm8904->sysclk_rate);
371
372 return 0;
373 }
374
375 static void wm8904_set_drc(struct snd_soc_codec *codec)
376 {
377 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
378 struct wm8904_pdata *pdata = wm8904->pdata;
379 int save, i;
380
381 /* Save any enables; the configuration should clear them. */
382 save = snd_soc_read(codec, WM8904_DRC_0);
383
384 for (i = 0; i < WM8904_DRC_REGS; i++)
385 snd_soc_update_bits(codec, WM8904_DRC_0 + i, 0xffff,
386 pdata->drc_cfgs[wm8904->drc_cfg].regs[i]);
387
388 /* Reenable the DRC */
389 snd_soc_update_bits(codec, WM8904_DRC_0,
390 WM8904_DRC_ENA | WM8904_DRC_DAC_PATH, save);
391 }
392
393 static int wm8904_put_drc_enum(struct snd_kcontrol *kcontrol,
394 struct snd_ctl_elem_value *ucontrol)
395 {
396 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
397 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
398 struct wm8904_pdata *pdata = wm8904->pdata;
399 int value = ucontrol->value.enumerated.item[0];
400
401 if (value >= pdata->num_drc_cfgs)
402 return -EINVAL;
403
404 wm8904->drc_cfg = value;
405
406 wm8904_set_drc(codec);
407
408 return 0;
409 }
410
411 static int wm8904_get_drc_enum(struct snd_kcontrol *kcontrol,
412 struct snd_ctl_elem_value *ucontrol)
413 {
414 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
415 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
416
417 ucontrol->value.enumerated.item[0] = wm8904->drc_cfg;
418
419 return 0;
420 }
421
422 static void wm8904_set_retune_mobile(struct snd_soc_codec *codec)
423 {
424 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
425 struct wm8904_pdata *pdata = wm8904->pdata;
426 int best, best_val, save, i, cfg;
427
428 if (!pdata || !wm8904->num_retune_mobile_texts)
429 return;
430
431 /* Find the version of the currently selected configuration
432 * with the nearest sample rate. */
433 cfg = wm8904->retune_mobile_cfg;
434 best = 0;
435 best_val = INT_MAX;
436 for (i = 0; i < pdata->num_retune_mobile_cfgs; i++) {
437 if (strcmp(pdata->retune_mobile_cfgs[i].name,
438 wm8904->retune_mobile_texts[cfg]) == 0 &&
439 abs(pdata->retune_mobile_cfgs[i].rate
440 - wm8904->fs) < best_val) {
441 best = i;
442 best_val = abs(pdata->retune_mobile_cfgs[i].rate
443 - wm8904->fs);
444 }
445 }
446
447 dev_dbg(codec->dev, "ReTune Mobile %s/%dHz for %dHz sample rate\n",
448 pdata->retune_mobile_cfgs[best].name,
449 pdata->retune_mobile_cfgs[best].rate,
450 wm8904->fs);
451
452 /* The EQ will be disabled while reconfiguring it, remember the
453 * current configuration.
454 */
455 save = snd_soc_read(codec, WM8904_EQ1);
456
457 for (i = 0; i < WM8904_EQ_REGS; i++)
458 snd_soc_update_bits(codec, WM8904_EQ1 + i, 0xffff,
459 pdata->retune_mobile_cfgs[best].regs[i]);
460
461 snd_soc_update_bits(codec, WM8904_EQ1, WM8904_EQ_ENA, save);
462 }
463
464 static int wm8904_put_retune_mobile_enum(struct snd_kcontrol *kcontrol,
465 struct snd_ctl_elem_value *ucontrol)
466 {
467 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
468 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
469 struct wm8904_pdata *pdata = wm8904->pdata;
470 int value = ucontrol->value.enumerated.item[0];
471
472 if (value >= pdata->num_retune_mobile_cfgs)
473 return -EINVAL;
474
475 wm8904->retune_mobile_cfg = value;
476
477 wm8904_set_retune_mobile(codec);
478
479 return 0;
480 }
481
482 static int wm8904_get_retune_mobile_enum(struct snd_kcontrol *kcontrol,
483 struct snd_ctl_elem_value *ucontrol)
484 {
485 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
486 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
487
488 ucontrol->value.enumerated.item[0] = wm8904->retune_mobile_cfg;
489
490 return 0;
491 }
492
493 static int deemph_settings[] = { 0, 32000, 44100, 48000 };
494
495 static int wm8904_set_deemph(struct snd_soc_codec *codec)
496 {
497 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
498 int val, i, best;
499
500 /* If we're using deemphasis select the nearest available sample
501 * rate.
502 */
503 if (wm8904->deemph) {
504 best = 1;
505 for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) {
506 if (abs(deemph_settings[i] - wm8904->fs) <
507 abs(deemph_settings[best] - wm8904->fs))
508 best = i;
509 }
510
511 val = best << WM8904_DEEMPH_SHIFT;
512 } else {
513 val = 0;
514 }
515
516 dev_dbg(codec->dev, "Set deemphasis %d\n", val);
517
518 return snd_soc_update_bits(codec, WM8904_DAC_DIGITAL_1,
519 WM8904_DEEMPH_MASK, val);
520 }
521
522 static int wm8904_get_deemph(struct snd_kcontrol *kcontrol,
523 struct snd_ctl_elem_value *ucontrol)
524 {
525 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
526 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
527
528 ucontrol->value.integer.value[0] = wm8904->deemph;
529 return 0;
530 }
531
532 static int wm8904_put_deemph(struct snd_kcontrol *kcontrol,
533 struct snd_ctl_elem_value *ucontrol)
534 {
535 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
536 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
537 unsigned int deemph = ucontrol->value.integer.value[0];
538
539 if (deemph > 1)
540 return -EINVAL;
541
542 wm8904->deemph = deemph;
543
544 return wm8904_set_deemph(codec);
545 }
546
547 static const DECLARE_TLV_DB_SCALE(dac_boost_tlv, 0, 600, 0);
548 static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
549 static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
550 static const DECLARE_TLV_DB_SCALE(sidetone_tlv, -3600, 300, 0);
551 static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
552
553 static const char *input_mode_text[] = {
554 "Single-Ended", "Differential Line", "Differential Mic"
555 };
556
557 static SOC_ENUM_SINGLE_DECL(lin_mode,
558 WM8904_ANALOGUE_LEFT_INPUT_1, 0,
559 input_mode_text);
560
561 static SOC_ENUM_SINGLE_DECL(rin_mode,
562 WM8904_ANALOGUE_RIGHT_INPUT_1, 0,
563 input_mode_text);
564
565 static const char *hpf_mode_text[] = {
566 "Hi-fi", "Voice 1", "Voice 2", "Voice 3"
567 };
568
569 static SOC_ENUM_SINGLE_DECL(hpf_mode, WM8904_ADC_DIGITAL_0, 5,
570 hpf_mode_text);
571
572 static int wm8904_adc_osr_put(struct snd_kcontrol *kcontrol,
573 struct snd_ctl_elem_value *ucontrol)
574 {
575 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
576 unsigned int val;
577 int ret;
578
579 ret = snd_soc_put_volsw(kcontrol, ucontrol);
580 if (ret < 0)
581 return ret;
582
583 if (ucontrol->value.integer.value[0])
584 val = 0;
585 else
586 val = WM8904_ADC_128_OSR_TST_MODE | WM8904_ADC_BIASX1P5;
587
588 snd_soc_update_bits(codec, WM8904_ADC_TEST_0,
589 WM8904_ADC_128_OSR_TST_MODE | WM8904_ADC_BIASX1P5,
590 val);
591
592 return ret;
593 }
594
595 static const struct snd_kcontrol_new wm8904_adc_snd_controls[] = {
596 SOC_DOUBLE_R_TLV("Digital Capture Volume", WM8904_ADC_DIGITAL_VOLUME_LEFT,
597 WM8904_ADC_DIGITAL_VOLUME_RIGHT, 1, 119, 0, digital_tlv),
598
599 SOC_ENUM("Left Caputure Mode", lin_mode),
600 SOC_ENUM("Right Capture Mode", rin_mode),
601
602 /* No TLV since it depends on mode */
603 SOC_DOUBLE_R("Capture Volume", WM8904_ANALOGUE_LEFT_INPUT_0,
604 WM8904_ANALOGUE_RIGHT_INPUT_0, 0, 31, 0),
605 SOC_DOUBLE_R("Capture Switch", WM8904_ANALOGUE_LEFT_INPUT_0,
606 WM8904_ANALOGUE_RIGHT_INPUT_0, 7, 1, 1),
607
608 SOC_SINGLE("High Pass Filter Switch", WM8904_ADC_DIGITAL_0, 4, 1, 0),
609 SOC_ENUM("High Pass Filter Mode", hpf_mode),
610 SOC_SINGLE_EXT("ADC 128x OSR Switch", WM8904_ANALOGUE_ADC_0, 0, 1, 0,
611 snd_soc_get_volsw, wm8904_adc_osr_put),
612 };
613
614 static const char *drc_path_text[] = {
615 "ADC", "DAC"
616 };
617
618 static SOC_ENUM_SINGLE_DECL(drc_path, WM8904_DRC_0, 14, drc_path_text);
619
620 static const struct snd_kcontrol_new wm8904_dac_snd_controls[] = {
621 SOC_SINGLE_TLV("Digital Playback Boost Volume",
622 WM8904_AUDIO_INTERFACE_0, 9, 3, 0, dac_boost_tlv),
623 SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8904_DAC_DIGITAL_VOLUME_LEFT,
624 WM8904_DAC_DIGITAL_VOLUME_RIGHT, 1, 96, 0, digital_tlv),
625
626 SOC_DOUBLE_R_TLV("Headphone Volume", WM8904_ANALOGUE_OUT1_LEFT,
627 WM8904_ANALOGUE_OUT1_RIGHT, 0, 63, 0, out_tlv),
628 SOC_DOUBLE_R("Headphone Switch", WM8904_ANALOGUE_OUT1_LEFT,
629 WM8904_ANALOGUE_OUT1_RIGHT, 8, 1, 1),
630 SOC_DOUBLE_R("Headphone ZC Switch", WM8904_ANALOGUE_OUT1_LEFT,
631 WM8904_ANALOGUE_OUT1_RIGHT, 6, 1, 0),
632
633 SOC_DOUBLE_R_TLV("Line Output Volume", WM8904_ANALOGUE_OUT2_LEFT,
634 WM8904_ANALOGUE_OUT2_RIGHT, 0, 63, 0, out_tlv),
635 SOC_DOUBLE_R("Line Output Switch", WM8904_ANALOGUE_OUT2_LEFT,
636 WM8904_ANALOGUE_OUT2_RIGHT, 8, 1, 1),
637 SOC_DOUBLE_R("Line Output ZC Switch", WM8904_ANALOGUE_OUT2_LEFT,
638 WM8904_ANALOGUE_OUT2_RIGHT, 6, 1, 0),
639
640 SOC_SINGLE("EQ Switch", WM8904_EQ1, 0, 1, 0),
641 SOC_SINGLE("DRC Switch", WM8904_DRC_0, 15, 1, 0),
642 SOC_ENUM("DRC Path", drc_path),
643 SOC_SINGLE("DAC OSRx2 Switch", WM8904_DAC_DIGITAL_1, 6, 1, 0),
644 SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0,
645 wm8904_get_deemph, wm8904_put_deemph),
646 };
647
648 static const struct snd_kcontrol_new wm8904_snd_controls[] = {
649 SOC_DOUBLE_TLV("Digital Sidetone Volume", WM8904_DAC_DIGITAL_0, 4, 8, 15, 0,
650 sidetone_tlv),
651 };
652
653 static const struct snd_kcontrol_new wm8904_eq_controls[] = {
654 SOC_SINGLE_TLV("EQ1 Volume", WM8904_EQ2, 0, 24, 0, eq_tlv),
655 SOC_SINGLE_TLV("EQ2 Volume", WM8904_EQ3, 0, 24, 0, eq_tlv),
656 SOC_SINGLE_TLV("EQ3 Volume", WM8904_EQ4, 0, 24, 0, eq_tlv),
657 SOC_SINGLE_TLV("EQ4 Volume", WM8904_EQ5, 0, 24, 0, eq_tlv),
658 SOC_SINGLE_TLV("EQ5 Volume", WM8904_EQ6, 0, 24, 0, eq_tlv),
659 };
660
661 static int cp_event(struct snd_soc_dapm_widget *w,
662 struct snd_kcontrol *kcontrol, int event)
663 {
664 if (WARN_ON(event != SND_SOC_DAPM_POST_PMU))
665 return -EINVAL;
666
667 /* Maximum startup time */
668 udelay(500);
669
670 return 0;
671 }
672
673 static int sysclk_event(struct snd_soc_dapm_widget *w,
674 struct snd_kcontrol *kcontrol, int event)
675 {
676 struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
677 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
678
679 switch (event) {
680 case SND_SOC_DAPM_PRE_PMU:
681 /* If we're using the FLL then we only start it when
682 * required; we assume that the configuration has been
683 * done previously and all we need to do is kick it
684 * off.
685 */
686 switch (wm8904->sysclk_src) {
687 case WM8904_CLK_FLL:
688 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
689 WM8904_FLL_OSC_ENA,
690 WM8904_FLL_OSC_ENA);
691
692 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
693 WM8904_FLL_ENA,
694 WM8904_FLL_ENA);
695 break;
696
697 default:
698 break;
699 }
700 break;
701
702 case SND_SOC_DAPM_POST_PMD:
703 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
704 WM8904_FLL_OSC_ENA | WM8904_FLL_ENA, 0);
705 break;
706 }
707
708 return 0;
709 }
710
711 static int out_pga_event(struct snd_soc_dapm_widget *w,
712 struct snd_kcontrol *kcontrol, int event)
713 {
714 struct snd_soc_codec *codec = snd_soc_dapm_to_codec(w->dapm);
715 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
716 int reg, val;
717 int dcs_mask;
718 int dcs_l, dcs_r;
719 int dcs_l_reg, dcs_r_reg;
720 int timeout;
721 int pwr_reg;
722
723 /* This code is shared between HP and LINEOUT; we do all our
724 * power management in stereo pairs to avoid latency issues so
725 * we reuse shift to identify which rather than strcmp() the
726 * name. */
727 reg = w->shift;
728
729 switch (reg) {
730 case WM8904_ANALOGUE_HP_0:
731 pwr_reg = WM8904_POWER_MANAGEMENT_2;
732 dcs_mask = WM8904_DCS_ENA_CHAN_0 | WM8904_DCS_ENA_CHAN_1;
733 dcs_r_reg = WM8904_DC_SERVO_8;
734 dcs_l_reg = WM8904_DC_SERVO_9;
735 dcs_l = 0;
736 dcs_r = 1;
737 break;
738 case WM8904_ANALOGUE_LINEOUT_0:
739 pwr_reg = WM8904_POWER_MANAGEMENT_3;
740 dcs_mask = WM8904_DCS_ENA_CHAN_2 | WM8904_DCS_ENA_CHAN_3;
741 dcs_r_reg = WM8904_DC_SERVO_6;
742 dcs_l_reg = WM8904_DC_SERVO_7;
743 dcs_l = 2;
744 dcs_r = 3;
745 break;
746 default:
747 WARN(1, "Invalid reg %d\n", reg);
748 return -EINVAL;
749 }
750
751 switch (event) {
752 case SND_SOC_DAPM_PRE_PMU:
753 /* Power on the PGAs */
754 snd_soc_update_bits(codec, pwr_reg,
755 WM8904_HPL_PGA_ENA | WM8904_HPR_PGA_ENA,
756 WM8904_HPL_PGA_ENA | WM8904_HPR_PGA_ENA);
757
758 /* Power on the amplifier */
759 snd_soc_update_bits(codec, reg,
760 WM8904_HPL_ENA | WM8904_HPR_ENA,
761 WM8904_HPL_ENA | WM8904_HPR_ENA);
762
763
764 /* Enable the first stage */
765 snd_soc_update_bits(codec, reg,
766 WM8904_HPL_ENA_DLY | WM8904_HPR_ENA_DLY,
767 WM8904_HPL_ENA_DLY | WM8904_HPR_ENA_DLY);
768
769 /* Power up the DC servo */
770 snd_soc_update_bits(codec, WM8904_DC_SERVO_0,
771 dcs_mask, dcs_mask);
772
773 /* Either calibrate the DC servo or restore cached state
774 * if we have that.
775 */
776 if (wm8904->dcs_state[dcs_l] || wm8904->dcs_state[dcs_r]) {
777 dev_dbg(codec->dev, "Restoring DC servo state\n");
778
779 snd_soc_write(codec, dcs_l_reg,
780 wm8904->dcs_state[dcs_l]);
781 snd_soc_write(codec, dcs_r_reg,
782 wm8904->dcs_state[dcs_r]);
783
784 snd_soc_write(codec, WM8904_DC_SERVO_1, dcs_mask);
785
786 timeout = 20;
787 } else {
788 dev_dbg(codec->dev, "Calibrating DC servo\n");
789
790 snd_soc_write(codec, WM8904_DC_SERVO_1,
791 dcs_mask << WM8904_DCS_TRIG_STARTUP_0_SHIFT);
792
793 timeout = 500;
794 }
795
796 /* Wait for DC servo to complete */
797 dcs_mask <<= WM8904_DCS_CAL_COMPLETE_SHIFT;
798 do {
799 val = snd_soc_read(codec, WM8904_DC_SERVO_READBACK_0);
800 if ((val & dcs_mask) == dcs_mask)
801 break;
802
803 msleep(1);
804 } while (--timeout);
805
806 if ((val & dcs_mask) != dcs_mask)
807 dev_warn(codec->dev, "DC servo timed out\n");
808 else
809 dev_dbg(codec->dev, "DC servo ready\n");
810
811 /* Enable the output stage */
812 snd_soc_update_bits(codec, reg,
813 WM8904_HPL_ENA_OUTP | WM8904_HPR_ENA_OUTP,
814 WM8904_HPL_ENA_OUTP | WM8904_HPR_ENA_OUTP);
815 break;
816
817 case SND_SOC_DAPM_POST_PMU:
818 /* Unshort the output itself */
819 snd_soc_update_bits(codec, reg,
820 WM8904_HPL_RMV_SHORT |
821 WM8904_HPR_RMV_SHORT,
822 WM8904_HPL_RMV_SHORT |
823 WM8904_HPR_RMV_SHORT);
824
825 break;
826
827 case SND_SOC_DAPM_PRE_PMD:
828 /* Short the output */
829 snd_soc_update_bits(codec, reg,
830 WM8904_HPL_RMV_SHORT |
831 WM8904_HPR_RMV_SHORT, 0);
832 break;
833
834 case SND_SOC_DAPM_POST_PMD:
835 /* Cache the DC servo configuration; this will be
836 * invalidated if we change the configuration. */
837 wm8904->dcs_state[dcs_l] = snd_soc_read(codec, dcs_l_reg);
838 wm8904->dcs_state[dcs_r] = snd_soc_read(codec, dcs_r_reg);
839
840 snd_soc_update_bits(codec, WM8904_DC_SERVO_0,
841 dcs_mask, 0);
842
843 /* Disable the amplifier input and output stages */
844 snd_soc_update_bits(codec, reg,
845 WM8904_HPL_ENA | WM8904_HPR_ENA |
846 WM8904_HPL_ENA_DLY | WM8904_HPR_ENA_DLY |
847 WM8904_HPL_ENA_OUTP | WM8904_HPR_ENA_OUTP,
848 0);
849
850 /* PGAs too */
851 snd_soc_update_bits(codec, pwr_reg,
852 WM8904_HPL_PGA_ENA | WM8904_HPR_PGA_ENA,
853 0);
854 break;
855 }
856
857 return 0;
858 }
859
860 static const char *lin_text[] = {
861 "IN1L", "IN2L", "IN3L"
862 };
863
864 static SOC_ENUM_SINGLE_DECL(lin_enum, WM8904_ANALOGUE_LEFT_INPUT_1, 2,
865 lin_text);
866
867 static const struct snd_kcontrol_new lin_mux =
868 SOC_DAPM_ENUM("Left Capture Mux", lin_enum);
869
870 static SOC_ENUM_SINGLE_DECL(lin_inv_enum, WM8904_ANALOGUE_LEFT_INPUT_1, 4,
871 lin_text);
872
873 static const struct snd_kcontrol_new lin_inv_mux =
874 SOC_DAPM_ENUM("Left Capture Inveting Mux", lin_inv_enum);
875
876 static const char *rin_text[] = {
877 "IN1R", "IN2R", "IN3R"
878 };
879
880 static SOC_ENUM_SINGLE_DECL(rin_enum, WM8904_ANALOGUE_RIGHT_INPUT_1, 2,
881 rin_text);
882
883 static const struct snd_kcontrol_new rin_mux =
884 SOC_DAPM_ENUM("Right Capture Mux", rin_enum);
885
886 static SOC_ENUM_SINGLE_DECL(rin_inv_enum, WM8904_ANALOGUE_RIGHT_INPUT_1, 4,
887 rin_text);
888
889 static const struct snd_kcontrol_new rin_inv_mux =
890 SOC_DAPM_ENUM("Right Capture Inveting Mux", rin_inv_enum);
891
892 static const char *aif_text[] = {
893 "Left", "Right"
894 };
895
896 static SOC_ENUM_SINGLE_DECL(aifoutl_enum, WM8904_AUDIO_INTERFACE_0, 7,
897 aif_text);
898
899 static const struct snd_kcontrol_new aifoutl_mux =
900 SOC_DAPM_ENUM("AIFOUTL Mux", aifoutl_enum);
901
902 static SOC_ENUM_SINGLE_DECL(aifoutr_enum, WM8904_AUDIO_INTERFACE_0, 6,
903 aif_text);
904
905 static const struct snd_kcontrol_new aifoutr_mux =
906 SOC_DAPM_ENUM("AIFOUTR Mux", aifoutr_enum);
907
908 static SOC_ENUM_SINGLE_DECL(aifinl_enum, WM8904_AUDIO_INTERFACE_0, 5,
909 aif_text);
910
911 static const struct snd_kcontrol_new aifinl_mux =
912 SOC_DAPM_ENUM("AIFINL Mux", aifinl_enum);
913
914 static SOC_ENUM_SINGLE_DECL(aifinr_enum, WM8904_AUDIO_INTERFACE_0, 4,
915 aif_text);
916
917 static const struct snd_kcontrol_new aifinr_mux =
918 SOC_DAPM_ENUM("AIFINR Mux", aifinr_enum);
919
920 static const struct snd_soc_dapm_widget wm8904_core_dapm_widgets[] = {
921 SND_SOC_DAPM_SUPPLY("SYSCLK", WM8904_CLOCK_RATES_2, 2, 0, sysclk_event,
922 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
923 SND_SOC_DAPM_SUPPLY("CLK_DSP", WM8904_CLOCK_RATES_2, 1, 0, NULL, 0),
924 SND_SOC_DAPM_SUPPLY("TOCLK", WM8904_CLOCK_RATES_2, 0, 0, NULL, 0),
925 };
926
927 static const struct snd_soc_dapm_widget wm8904_adc_dapm_widgets[] = {
928 SND_SOC_DAPM_INPUT("IN1L"),
929 SND_SOC_DAPM_INPUT("IN1R"),
930 SND_SOC_DAPM_INPUT("IN2L"),
931 SND_SOC_DAPM_INPUT("IN2R"),
932 SND_SOC_DAPM_INPUT("IN3L"),
933 SND_SOC_DAPM_INPUT("IN3R"),
934
935 SND_SOC_DAPM_SUPPLY("MICBIAS", WM8904_MIC_BIAS_CONTROL_0, 0, 0, NULL, 0),
936
937 SND_SOC_DAPM_MUX("Left Capture Mux", SND_SOC_NOPM, 0, 0, &lin_mux),
938 SND_SOC_DAPM_MUX("Left Capture Inverting Mux", SND_SOC_NOPM, 0, 0,
939 &lin_inv_mux),
940 SND_SOC_DAPM_MUX("Right Capture Mux", SND_SOC_NOPM, 0, 0, &rin_mux),
941 SND_SOC_DAPM_MUX("Right Capture Inverting Mux", SND_SOC_NOPM, 0, 0,
942 &rin_inv_mux),
943
944 SND_SOC_DAPM_PGA("Left Capture PGA", WM8904_POWER_MANAGEMENT_0, 1, 0,
945 NULL, 0),
946 SND_SOC_DAPM_PGA("Right Capture PGA", WM8904_POWER_MANAGEMENT_0, 0, 0,
947 NULL, 0),
948
949 SND_SOC_DAPM_ADC("ADCL", NULL, WM8904_POWER_MANAGEMENT_6, 1, 0),
950 SND_SOC_DAPM_ADC("ADCR", NULL, WM8904_POWER_MANAGEMENT_6, 0, 0),
951
952 SND_SOC_DAPM_MUX("AIFOUTL Mux", SND_SOC_NOPM, 0, 0, &aifoutl_mux),
953 SND_SOC_DAPM_MUX("AIFOUTR Mux", SND_SOC_NOPM, 0, 0, &aifoutr_mux),
954
955 SND_SOC_DAPM_AIF_OUT("AIFOUTL", "Capture", 0, SND_SOC_NOPM, 0, 0),
956 SND_SOC_DAPM_AIF_OUT("AIFOUTR", "Capture", 1, SND_SOC_NOPM, 0, 0),
957 };
958
959 static const struct snd_soc_dapm_widget wm8904_dac_dapm_widgets[] = {
960 SND_SOC_DAPM_AIF_IN("AIFINL", "Playback", 0, SND_SOC_NOPM, 0, 0),
961 SND_SOC_DAPM_AIF_IN("AIFINR", "Playback", 1, SND_SOC_NOPM, 0, 0),
962
963 SND_SOC_DAPM_MUX("DACL Mux", SND_SOC_NOPM, 0, 0, &aifinl_mux),
964 SND_SOC_DAPM_MUX("DACR Mux", SND_SOC_NOPM, 0, 0, &aifinr_mux),
965
966 SND_SOC_DAPM_DAC("DACL", NULL, WM8904_POWER_MANAGEMENT_6, 3, 0),
967 SND_SOC_DAPM_DAC("DACR", NULL, WM8904_POWER_MANAGEMENT_6, 2, 0),
968
969 SND_SOC_DAPM_SUPPLY("Charge pump", WM8904_CHARGE_PUMP_0, 0, 0, cp_event,
970 SND_SOC_DAPM_POST_PMU),
971
972 SND_SOC_DAPM_PGA("HPL PGA", SND_SOC_NOPM, 1, 0, NULL, 0),
973 SND_SOC_DAPM_PGA("HPR PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
974
975 SND_SOC_DAPM_PGA("LINEL PGA", SND_SOC_NOPM, 1, 0, NULL, 0),
976 SND_SOC_DAPM_PGA("LINER PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
977
978 SND_SOC_DAPM_PGA_E("Headphone Output", SND_SOC_NOPM, WM8904_ANALOGUE_HP_0,
979 0, NULL, 0, out_pga_event,
980 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
981 SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
982 SND_SOC_DAPM_PGA_E("Line Output", SND_SOC_NOPM, WM8904_ANALOGUE_LINEOUT_0,
983 0, NULL, 0, out_pga_event,
984 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMU |
985 SND_SOC_DAPM_PRE_PMD | SND_SOC_DAPM_POST_PMD),
986
987 SND_SOC_DAPM_OUTPUT("HPOUTL"),
988 SND_SOC_DAPM_OUTPUT("HPOUTR"),
989 SND_SOC_DAPM_OUTPUT("LINEOUTL"),
990 SND_SOC_DAPM_OUTPUT("LINEOUTR"),
991 };
992
993 static const char *out_mux_text[] = {
994 "DAC", "Bypass"
995 };
996
997 static SOC_ENUM_SINGLE_DECL(hpl_enum, WM8904_ANALOGUE_OUT12_ZC, 3,
998 out_mux_text);
999
1000 static const struct snd_kcontrol_new hpl_mux =
1001 SOC_DAPM_ENUM("HPL Mux", hpl_enum);
1002
1003 static SOC_ENUM_SINGLE_DECL(hpr_enum, WM8904_ANALOGUE_OUT12_ZC, 2,
1004 out_mux_text);
1005
1006 static const struct snd_kcontrol_new hpr_mux =
1007 SOC_DAPM_ENUM("HPR Mux", hpr_enum);
1008
1009 static SOC_ENUM_SINGLE_DECL(linel_enum, WM8904_ANALOGUE_OUT12_ZC, 1,
1010 out_mux_text);
1011
1012 static const struct snd_kcontrol_new linel_mux =
1013 SOC_DAPM_ENUM("LINEL Mux", linel_enum);
1014
1015 static SOC_ENUM_SINGLE_DECL(liner_enum, WM8904_ANALOGUE_OUT12_ZC, 0,
1016 out_mux_text);
1017
1018 static const struct snd_kcontrol_new liner_mux =
1019 SOC_DAPM_ENUM("LINER Mux", liner_enum);
1020
1021 static const char *sidetone_text[] = {
1022 "None", "Left", "Right"
1023 };
1024
1025 static SOC_ENUM_SINGLE_DECL(dacl_sidetone_enum, WM8904_DAC_DIGITAL_0, 2,
1026 sidetone_text);
1027
1028 static const struct snd_kcontrol_new dacl_sidetone_mux =
1029 SOC_DAPM_ENUM("Left Sidetone Mux", dacl_sidetone_enum);
1030
1031 static SOC_ENUM_SINGLE_DECL(dacr_sidetone_enum, WM8904_DAC_DIGITAL_0, 0,
1032 sidetone_text);
1033
1034 static const struct snd_kcontrol_new dacr_sidetone_mux =
1035 SOC_DAPM_ENUM("Right Sidetone Mux", dacr_sidetone_enum);
1036
1037 static const struct snd_soc_dapm_widget wm8904_dapm_widgets[] = {
1038 SND_SOC_DAPM_SUPPLY("Class G", WM8904_CLASS_W_0, 0, 1, NULL, 0),
1039 SND_SOC_DAPM_PGA("Left Bypass", SND_SOC_NOPM, 0, 0, NULL, 0),
1040 SND_SOC_DAPM_PGA("Right Bypass", SND_SOC_NOPM, 0, 0, NULL, 0),
1041
1042 SND_SOC_DAPM_MUX("Left Sidetone", SND_SOC_NOPM, 0, 0, &dacl_sidetone_mux),
1043 SND_SOC_DAPM_MUX("Right Sidetone", SND_SOC_NOPM, 0, 0, &dacr_sidetone_mux),
1044
1045 SND_SOC_DAPM_MUX("HPL Mux", SND_SOC_NOPM, 0, 0, &hpl_mux),
1046 SND_SOC_DAPM_MUX("HPR Mux", SND_SOC_NOPM, 0, 0, &hpr_mux),
1047 SND_SOC_DAPM_MUX("LINEL Mux", SND_SOC_NOPM, 0, 0, &linel_mux),
1048 SND_SOC_DAPM_MUX("LINER Mux", SND_SOC_NOPM, 0, 0, &liner_mux),
1049 };
1050
1051 static const struct snd_soc_dapm_route core_intercon[] = {
1052 { "CLK_DSP", NULL, "SYSCLK" },
1053 { "TOCLK", NULL, "SYSCLK" },
1054 };
1055
1056 static const struct snd_soc_dapm_route adc_intercon[] = {
1057 { "Left Capture Mux", "IN1L", "IN1L" },
1058 { "Left Capture Mux", "IN2L", "IN2L" },
1059 { "Left Capture Mux", "IN3L", "IN3L" },
1060
1061 { "Left Capture Inverting Mux", "IN1L", "IN1L" },
1062 { "Left Capture Inverting Mux", "IN2L", "IN2L" },
1063 { "Left Capture Inverting Mux", "IN3L", "IN3L" },
1064
1065 { "Right Capture Mux", "IN1R", "IN1R" },
1066 { "Right Capture Mux", "IN2R", "IN2R" },
1067 { "Right Capture Mux", "IN3R", "IN3R" },
1068
1069 { "Right Capture Inverting Mux", "IN1R", "IN1R" },
1070 { "Right Capture Inverting Mux", "IN2R", "IN2R" },
1071 { "Right Capture Inverting Mux", "IN3R", "IN3R" },
1072
1073 { "Left Capture PGA", NULL, "Left Capture Mux" },
1074 { "Left Capture PGA", NULL, "Left Capture Inverting Mux" },
1075
1076 { "Right Capture PGA", NULL, "Right Capture Mux" },
1077 { "Right Capture PGA", NULL, "Right Capture Inverting Mux" },
1078
1079 { "AIFOUTL Mux", "Left", "ADCL" },
1080 { "AIFOUTL Mux", "Right", "ADCR" },
1081 { "AIFOUTR Mux", "Left", "ADCL" },
1082 { "AIFOUTR Mux", "Right", "ADCR" },
1083
1084 { "AIFOUTL", NULL, "AIFOUTL Mux" },
1085 { "AIFOUTR", NULL, "AIFOUTR Mux" },
1086
1087 { "ADCL", NULL, "CLK_DSP" },
1088 { "ADCL", NULL, "Left Capture PGA" },
1089
1090 { "ADCR", NULL, "CLK_DSP" },
1091 { "ADCR", NULL, "Right Capture PGA" },
1092 };
1093
1094 static const struct snd_soc_dapm_route dac_intercon[] = {
1095 { "DACL Mux", "Left", "AIFINL" },
1096 { "DACL Mux", "Right", "AIFINR" },
1097
1098 { "DACR Mux", "Left", "AIFINL" },
1099 { "DACR Mux", "Right", "AIFINR" },
1100
1101 { "DACL", NULL, "DACL Mux" },
1102 { "DACL", NULL, "CLK_DSP" },
1103
1104 { "DACR", NULL, "DACR Mux" },
1105 { "DACR", NULL, "CLK_DSP" },
1106
1107 { "Charge pump", NULL, "SYSCLK" },
1108
1109 { "Headphone Output", NULL, "HPL PGA" },
1110 { "Headphone Output", NULL, "HPR PGA" },
1111 { "Headphone Output", NULL, "Charge pump" },
1112 { "Headphone Output", NULL, "TOCLK" },
1113
1114 { "Line Output", NULL, "LINEL PGA" },
1115 { "Line Output", NULL, "LINER PGA" },
1116 { "Line Output", NULL, "Charge pump" },
1117 { "Line Output", NULL, "TOCLK" },
1118
1119 { "HPOUTL", NULL, "Headphone Output" },
1120 { "HPOUTR", NULL, "Headphone Output" },
1121
1122 { "LINEOUTL", NULL, "Line Output" },
1123 { "LINEOUTR", NULL, "Line Output" },
1124 };
1125
1126 static const struct snd_soc_dapm_route wm8904_intercon[] = {
1127 { "Left Sidetone", "Left", "ADCL" },
1128 { "Left Sidetone", "Right", "ADCR" },
1129 { "DACL", NULL, "Left Sidetone" },
1130
1131 { "Right Sidetone", "Left", "ADCL" },
1132 { "Right Sidetone", "Right", "ADCR" },
1133 { "DACR", NULL, "Right Sidetone" },
1134
1135 { "Left Bypass", NULL, "Class G" },
1136 { "Left Bypass", NULL, "Left Capture PGA" },
1137
1138 { "Right Bypass", NULL, "Class G" },
1139 { "Right Bypass", NULL, "Right Capture PGA" },
1140
1141 { "HPL Mux", "DAC", "DACL" },
1142 { "HPL Mux", "Bypass", "Left Bypass" },
1143
1144 { "HPR Mux", "DAC", "DACR" },
1145 { "HPR Mux", "Bypass", "Right Bypass" },
1146
1147 { "LINEL Mux", "DAC", "DACL" },
1148 { "LINEL Mux", "Bypass", "Left Bypass" },
1149
1150 { "LINER Mux", "DAC", "DACR" },
1151 { "LINER Mux", "Bypass", "Right Bypass" },
1152
1153 { "HPL PGA", NULL, "HPL Mux" },
1154 { "HPR PGA", NULL, "HPR Mux" },
1155
1156 { "LINEL PGA", NULL, "LINEL Mux" },
1157 { "LINER PGA", NULL, "LINER Mux" },
1158 };
1159
1160 static const struct snd_soc_dapm_route wm8912_intercon[] = {
1161 { "HPL PGA", NULL, "DACL" },
1162 { "HPR PGA", NULL, "DACR" },
1163
1164 { "LINEL PGA", NULL, "DACL" },
1165 { "LINER PGA", NULL, "DACR" },
1166 };
1167
1168 static int wm8904_add_widgets(struct snd_soc_codec *codec)
1169 {
1170 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
1171 struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
1172
1173 snd_soc_dapm_new_controls(dapm, wm8904_core_dapm_widgets,
1174 ARRAY_SIZE(wm8904_core_dapm_widgets));
1175 snd_soc_dapm_add_routes(dapm, core_intercon,
1176 ARRAY_SIZE(core_intercon));
1177
1178 switch (wm8904->devtype) {
1179 case WM8904:
1180 snd_soc_add_codec_controls(codec, wm8904_adc_snd_controls,
1181 ARRAY_SIZE(wm8904_adc_snd_controls));
1182 snd_soc_add_codec_controls(codec, wm8904_dac_snd_controls,
1183 ARRAY_SIZE(wm8904_dac_snd_controls));
1184 snd_soc_add_codec_controls(codec, wm8904_snd_controls,
1185 ARRAY_SIZE(wm8904_snd_controls));
1186
1187 snd_soc_dapm_new_controls(dapm, wm8904_adc_dapm_widgets,
1188 ARRAY_SIZE(wm8904_adc_dapm_widgets));
1189 snd_soc_dapm_new_controls(dapm, wm8904_dac_dapm_widgets,
1190 ARRAY_SIZE(wm8904_dac_dapm_widgets));
1191 snd_soc_dapm_new_controls(dapm, wm8904_dapm_widgets,
1192 ARRAY_SIZE(wm8904_dapm_widgets));
1193
1194 snd_soc_dapm_add_routes(dapm, adc_intercon,
1195 ARRAY_SIZE(adc_intercon));
1196 snd_soc_dapm_add_routes(dapm, dac_intercon,
1197 ARRAY_SIZE(dac_intercon));
1198 snd_soc_dapm_add_routes(dapm, wm8904_intercon,
1199 ARRAY_SIZE(wm8904_intercon));
1200 break;
1201
1202 case WM8912:
1203 snd_soc_add_codec_controls(codec, wm8904_dac_snd_controls,
1204 ARRAY_SIZE(wm8904_dac_snd_controls));
1205
1206 snd_soc_dapm_new_controls(dapm, wm8904_dac_dapm_widgets,
1207 ARRAY_SIZE(wm8904_dac_dapm_widgets));
1208
1209 snd_soc_dapm_add_routes(dapm, dac_intercon,
1210 ARRAY_SIZE(dac_intercon));
1211 snd_soc_dapm_add_routes(dapm, wm8912_intercon,
1212 ARRAY_SIZE(wm8912_intercon));
1213 break;
1214 }
1215
1216 return 0;
1217 }
1218
1219 static struct {
1220 int ratio;
1221 unsigned int clk_sys_rate;
1222 } clk_sys_rates[] = {
1223 { 64, 0 },
1224 { 128, 1 },
1225 { 192, 2 },
1226 { 256, 3 },
1227 { 384, 4 },
1228 { 512, 5 },
1229 { 786, 6 },
1230 { 1024, 7 },
1231 { 1408, 8 },
1232 { 1536, 9 },
1233 };
1234
1235 static struct {
1236 int rate;
1237 int sample_rate;
1238 } sample_rates[] = {
1239 { 8000, 0 },
1240 { 11025, 1 },
1241 { 12000, 1 },
1242 { 16000, 2 },
1243 { 22050, 3 },
1244 { 24000, 3 },
1245 { 32000, 4 },
1246 { 44100, 5 },
1247 { 48000, 5 },
1248 };
1249
1250 static struct {
1251 int div; /* *10 due to .5s */
1252 int bclk_div;
1253 } bclk_divs[] = {
1254 { 10, 0 },
1255 { 15, 1 },
1256 { 20, 2 },
1257 { 30, 3 },
1258 { 40, 4 },
1259 { 50, 5 },
1260 { 55, 6 },
1261 { 60, 7 },
1262 { 80, 8 },
1263 { 100, 9 },
1264 { 110, 10 },
1265 { 120, 11 },
1266 { 160, 12 },
1267 { 200, 13 },
1268 { 220, 14 },
1269 { 240, 16 },
1270 { 200, 17 },
1271 { 320, 18 },
1272 { 440, 19 },
1273 { 480, 20 },
1274 };
1275
1276
1277 static int wm8904_hw_params(struct snd_pcm_substream *substream,
1278 struct snd_pcm_hw_params *params,
1279 struct snd_soc_dai *dai)
1280 {
1281 struct snd_soc_codec *codec = dai->codec;
1282 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
1283 int ret, i, best, best_val, cur_val;
1284 unsigned int aif1 = 0;
1285 unsigned int aif2 = 0;
1286 unsigned int aif3 = 0;
1287 unsigned int clock1 = 0;
1288 unsigned int dac_digital1 = 0;
1289
1290 /* What BCLK do we need? */
1291 wm8904->fs = params_rate(params);
1292 if (wm8904->tdm_slots) {
1293 dev_dbg(codec->dev, "Configuring for %d %d bit TDM slots\n",
1294 wm8904->tdm_slots, wm8904->tdm_width);
1295 wm8904->bclk = snd_soc_calc_bclk(wm8904->fs,
1296 wm8904->tdm_width, 2,
1297 wm8904->tdm_slots);
1298 } else {
1299 wm8904->bclk = snd_soc_params_to_bclk(params);
1300 }
1301
1302 switch (params_width(params)) {
1303 case 16:
1304 break;
1305 case 20:
1306 aif1 |= 0x40;
1307 break;
1308 case 24:
1309 aif1 |= 0x80;
1310 break;
1311 case 32:
1312 aif1 |= 0xc0;
1313 break;
1314 default:
1315 return -EINVAL;
1316 }
1317
1318
1319 dev_dbg(codec->dev, "Target BCLK is %dHz\n", wm8904->bclk);
1320
1321 ret = wm8904_configure_clocking(codec);
1322 if (ret != 0)
1323 return ret;
1324
1325 /* Select nearest CLK_SYS_RATE */
1326 best = 0;
1327 best_val = abs((wm8904->sysclk_rate / clk_sys_rates[0].ratio)
1328 - wm8904->fs);
1329 for (i = 1; i < ARRAY_SIZE(clk_sys_rates); i++) {
1330 cur_val = abs((wm8904->sysclk_rate /
1331 clk_sys_rates[i].ratio) - wm8904->fs);
1332 if (cur_val < best_val) {
1333 best = i;
1334 best_val = cur_val;
1335 }
1336 }
1337 dev_dbg(codec->dev, "Selected CLK_SYS_RATIO of %d\n",
1338 clk_sys_rates[best].ratio);
1339 clock1 |= (clk_sys_rates[best].clk_sys_rate
1340 << WM8904_CLK_SYS_RATE_SHIFT);
1341
1342 /* SAMPLE_RATE */
1343 best = 0;
1344 best_val = abs(wm8904->fs - sample_rates[0].rate);
1345 for (i = 1; i < ARRAY_SIZE(sample_rates); i++) {
1346 /* Closest match */
1347 cur_val = abs(wm8904->fs - sample_rates[i].rate);
1348 if (cur_val < best_val) {
1349 best = i;
1350 best_val = cur_val;
1351 }
1352 }
1353 dev_dbg(codec->dev, "Selected SAMPLE_RATE of %dHz\n",
1354 sample_rates[best].rate);
1355 clock1 |= (sample_rates[best].sample_rate
1356 << WM8904_SAMPLE_RATE_SHIFT);
1357
1358 /* Enable sloping stopband filter for low sample rates */
1359 if (wm8904->fs <= 24000)
1360 dac_digital1 |= WM8904_DAC_SB_FILT;
1361
1362 /* BCLK_DIV */
1363 best = 0;
1364 best_val = INT_MAX;
1365 for (i = 0; i < ARRAY_SIZE(bclk_divs); i++) {
1366 cur_val = ((wm8904->sysclk_rate * 10) / bclk_divs[i].div)
1367 - wm8904->bclk;
1368 if (cur_val < 0) /* Table is sorted */
1369 break;
1370 if (cur_val < best_val) {
1371 best = i;
1372 best_val = cur_val;
1373 }
1374 }
1375 wm8904->bclk = (wm8904->sysclk_rate * 10) / bclk_divs[best].div;
1376 dev_dbg(codec->dev, "Selected BCLK_DIV of %d for %dHz BCLK\n",
1377 bclk_divs[best].div, wm8904->bclk);
1378 aif2 |= bclk_divs[best].bclk_div;
1379
1380 /* LRCLK is a simple fraction of BCLK */
1381 dev_dbg(codec->dev, "LRCLK_RATE is %d\n", wm8904->bclk / wm8904->fs);
1382 aif3 |= wm8904->bclk / wm8904->fs;
1383
1384 /* Apply the settings */
1385 snd_soc_update_bits(codec, WM8904_DAC_DIGITAL_1,
1386 WM8904_DAC_SB_FILT, dac_digital1);
1387 snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_1,
1388 WM8904_AIF_WL_MASK, aif1);
1389 snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_2,
1390 WM8904_BCLK_DIV_MASK, aif2);
1391 snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_3,
1392 WM8904_LRCLK_RATE_MASK, aif3);
1393 snd_soc_update_bits(codec, WM8904_CLOCK_RATES_1,
1394 WM8904_SAMPLE_RATE_MASK |
1395 WM8904_CLK_SYS_RATE_MASK, clock1);
1396
1397 /* Update filters for the new settings */
1398 wm8904_set_retune_mobile(codec);
1399 wm8904_set_deemph(codec);
1400
1401 return 0;
1402 }
1403
1404
1405 static int wm8904_set_sysclk(struct snd_soc_dai *dai, int clk_id,
1406 unsigned int freq, int dir)
1407 {
1408 struct snd_soc_codec *codec = dai->codec;
1409 struct wm8904_priv *priv = snd_soc_codec_get_drvdata(codec);
1410
1411 switch (clk_id) {
1412 case WM8904_CLK_MCLK:
1413 priv->sysclk_src = clk_id;
1414 priv->mclk_rate = freq;
1415 break;
1416
1417 case WM8904_CLK_FLL:
1418 priv->sysclk_src = clk_id;
1419 break;
1420
1421 default:
1422 return -EINVAL;
1423 }
1424
1425 dev_dbg(dai->dev, "Clock source is %d at %uHz\n", clk_id, freq);
1426
1427 wm8904_configure_clocking(codec);
1428
1429 return 0;
1430 }
1431
1432 static int wm8904_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
1433 {
1434 struct snd_soc_codec *codec = dai->codec;
1435 unsigned int aif1 = 0;
1436 unsigned int aif3 = 0;
1437
1438 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1439 case SND_SOC_DAIFMT_CBS_CFS:
1440 break;
1441 case SND_SOC_DAIFMT_CBS_CFM:
1442 aif3 |= WM8904_LRCLK_DIR;
1443 break;
1444 case SND_SOC_DAIFMT_CBM_CFS:
1445 aif1 |= WM8904_BCLK_DIR;
1446 break;
1447 case SND_SOC_DAIFMT_CBM_CFM:
1448 aif1 |= WM8904_BCLK_DIR;
1449 aif3 |= WM8904_LRCLK_DIR;
1450 break;
1451 default:
1452 return -EINVAL;
1453 }
1454
1455 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1456 case SND_SOC_DAIFMT_DSP_B:
1457 aif1 |= 0x3 | WM8904_AIF_LRCLK_INV;
1458 case SND_SOC_DAIFMT_DSP_A:
1459 aif1 |= 0x3;
1460 break;
1461 case SND_SOC_DAIFMT_I2S:
1462 aif1 |= 0x2;
1463 break;
1464 case SND_SOC_DAIFMT_RIGHT_J:
1465 break;
1466 case SND_SOC_DAIFMT_LEFT_J:
1467 aif1 |= 0x1;
1468 break;
1469 default:
1470 return -EINVAL;
1471 }
1472
1473 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1474 case SND_SOC_DAIFMT_DSP_A:
1475 case SND_SOC_DAIFMT_DSP_B:
1476 /* frame inversion not valid for DSP modes */
1477 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1478 case SND_SOC_DAIFMT_NB_NF:
1479 break;
1480 case SND_SOC_DAIFMT_IB_NF:
1481 aif1 |= WM8904_AIF_BCLK_INV;
1482 break;
1483 default:
1484 return -EINVAL;
1485 }
1486 break;
1487
1488 case SND_SOC_DAIFMT_I2S:
1489 case SND_SOC_DAIFMT_RIGHT_J:
1490 case SND_SOC_DAIFMT_LEFT_J:
1491 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1492 case SND_SOC_DAIFMT_NB_NF:
1493 break;
1494 case SND_SOC_DAIFMT_IB_IF:
1495 aif1 |= WM8904_AIF_BCLK_INV | WM8904_AIF_LRCLK_INV;
1496 break;
1497 case SND_SOC_DAIFMT_IB_NF:
1498 aif1 |= WM8904_AIF_BCLK_INV;
1499 break;
1500 case SND_SOC_DAIFMT_NB_IF:
1501 aif1 |= WM8904_AIF_LRCLK_INV;
1502 break;
1503 default:
1504 return -EINVAL;
1505 }
1506 break;
1507 default:
1508 return -EINVAL;
1509 }
1510
1511 snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_1,
1512 WM8904_AIF_BCLK_INV | WM8904_AIF_LRCLK_INV |
1513 WM8904_AIF_FMT_MASK | WM8904_BCLK_DIR, aif1);
1514 snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_3,
1515 WM8904_LRCLK_DIR, aif3);
1516
1517 return 0;
1518 }
1519
1520
1521 static int wm8904_set_tdm_slot(struct snd_soc_dai *dai, unsigned int tx_mask,
1522 unsigned int rx_mask, int slots, int slot_width)
1523 {
1524 struct snd_soc_codec *codec = dai->codec;
1525 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
1526 int aif1 = 0;
1527
1528 /* Don't need to validate anything if we're turning off TDM */
1529 if (slots == 0)
1530 goto out;
1531
1532 /* Note that we allow configurations we can't handle ourselves -
1533 * for example, we can generate clocks for slots 2 and up even if
1534 * we can't use those slots ourselves.
1535 */
1536 aif1 |= WM8904_AIFADC_TDM | WM8904_AIFDAC_TDM;
1537
1538 switch (rx_mask) {
1539 case 3:
1540 break;
1541 case 0xc:
1542 aif1 |= WM8904_AIFADC_TDM_CHAN;
1543 break;
1544 default:
1545 return -EINVAL;
1546 }
1547
1548
1549 switch (tx_mask) {
1550 case 3:
1551 break;
1552 case 0xc:
1553 aif1 |= WM8904_AIFDAC_TDM_CHAN;
1554 break;
1555 default:
1556 return -EINVAL;
1557 }
1558
1559 out:
1560 wm8904->tdm_width = slot_width;
1561 wm8904->tdm_slots = slots / 2;
1562
1563 snd_soc_update_bits(codec, WM8904_AUDIO_INTERFACE_1,
1564 WM8904_AIFADC_TDM | WM8904_AIFADC_TDM_CHAN |
1565 WM8904_AIFDAC_TDM | WM8904_AIFDAC_TDM_CHAN, aif1);
1566
1567 return 0;
1568 }
1569
1570 struct _fll_div {
1571 u16 fll_fratio;
1572 u16 fll_outdiv;
1573 u16 fll_clk_ref_div;
1574 u16 n;
1575 u16 k;
1576 };
1577
1578 /* The size in bits of the FLL divide multiplied by 10
1579 * to allow rounding later */
1580 #define FIXED_FLL_SIZE ((1 << 16) * 10)
1581
1582 static struct {
1583 unsigned int min;
1584 unsigned int max;
1585 u16 fll_fratio;
1586 int ratio;
1587 } fll_fratios[] = {
1588 { 0, 64000, 4, 16 },
1589 { 64000, 128000, 3, 8 },
1590 { 128000, 256000, 2, 4 },
1591 { 256000, 1000000, 1, 2 },
1592 { 1000000, 13500000, 0, 1 },
1593 };
1594
1595 static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,
1596 unsigned int Fout)
1597 {
1598 u64 Kpart;
1599 unsigned int K, Ndiv, Nmod, target;
1600 unsigned int div;
1601 int i;
1602
1603 /* Fref must be <=13.5MHz */
1604 div = 1;
1605 fll_div->fll_clk_ref_div = 0;
1606 while ((Fref / div) > 13500000) {
1607 div *= 2;
1608 fll_div->fll_clk_ref_div++;
1609
1610 if (div > 8) {
1611 pr_err("Can't scale %dMHz input down to <=13.5MHz\n",
1612 Fref);
1613 return -EINVAL;
1614 }
1615 }
1616
1617 pr_debug("Fref=%u Fout=%u\n", Fref, Fout);
1618
1619 /* Apply the division for our remaining calculations */
1620 Fref /= div;
1621
1622 /* Fvco should be 90-100MHz; don't check the upper bound */
1623 div = 4;
1624 while (Fout * div < 90000000) {
1625 div++;
1626 if (div > 64) {
1627 pr_err("Unable to find FLL_OUTDIV for Fout=%uHz\n",
1628 Fout);
1629 return -EINVAL;
1630 }
1631 }
1632 target = Fout * div;
1633 fll_div->fll_outdiv = div - 1;
1634
1635 pr_debug("Fvco=%dHz\n", target);
1636
1637 /* Find an appropriate FLL_FRATIO and factor it out of the target */
1638 for (i = 0; i < ARRAY_SIZE(fll_fratios); i++) {
1639 if (fll_fratios[i].min <= Fref && Fref <= fll_fratios[i].max) {
1640 fll_div->fll_fratio = fll_fratios[i].fll_fratio;
1641 target /= fll_fratios[i].ratio;
1642 break;
1643 }
1644 }
1645 if (i == ARRAY_SIZE(fll_fratios)) {
1646 pr_err("Unable to find FLL_FRATIO for Fref=%uHz\n", Fref);
1647 return -EINVAL;
1648 }
1649
1650 /* Now, calculate N.K */
1651 Ndiv = target / Fref;
1652
1653 fll_div->n = Ndiv;
1654 Nmod = target % Fref;
1655 pr_debug("Nmod=%d\n", Nmod);
1656
1657 /* Calculate fractional part - scale up so we can round. */
1658 Kpart = FIXED_FLL_SIZE * (long long)Nmod;
1659
1660 do_div(Kpart, Fref);
1661
1662 K = Kpart & 0xFFFFFFFF;
1663
1664 if ((K % 10) >= 5)
1665 K += 5;
1666
1667 /* Move down to proper range now rounding is done */
1668 fll_div->k = K / 10;
1669
1670 pr_debug("N=%x K=%x FLL_FRATIO=%x FLL_OUTDIV=%x FLL_CLK_REF_DIV=%x\n",
1671 fll_div->n, fll_div->k,
1672 fll_div->fll_fratio, fll_div->fll_outdiv,
1673 fll_div->fll_clk_ref_div);
1674
1675 return 0;
1676 }
1677
1678 static int wm8904_set_fll(struct snd_soc_dai *dai, int fll_id, int source,
1679 unsigned int Fref, unsigned int Fout)
1680 {
1681 struct snd_soc_codec *codec = dai->codec;
1682 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
1683 struct _fll_div fll_div;
1684 int ret, val;
1685 int clock2, fll1;
1686
1687 /* Any change? */
1688 if (source == wm8904->fll_src && Fref == wm8904->fll_fref &&
1689 Fout == wm8904->fll_fout)
1690 return 0;
1691
1692 clock2 = snd_soc_read(codec, WM8904_CLOCK_RATES_2);
1693
1694 if (Fout == 0) {
1695 dev_dbg(codec->dev, "FLL disabled\n");
1696
1697 wm8904->fll_fref = 0;
1698 wm8904->fll_fout = 0;
1699
1700 /* Gate SYSCLK to avoid glitches */
1701 snd_soc_update_bits(codec, WM8904_CLOCK_RATES_2,
1702 WM8904_CLK_SYS_ENA, 0);
1703
1704 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
1705 WM8904_FLL_OSC_ENA | WM8904_FLL_ENA, 0);
1706
1707 goto out;
1708 }
1709
1710 /* Validate the FLL ID */
1711 switch (source) {
1712 case WM8904_FLL_MCLK:
1713 case WM8904_FLL_LRCLK:
1714 case WM8904_FLL_BCLK:
1715 ret = fll_factors(&fll_div, Fref, Fout);
1716 if (ret != 0)
1717 return ret;
1718 break;
1719
1720 case WM8904_FLL_FREE_RUNNING:
1721 dev_dbg(codec->dev, "Using free running FLL\n");
1722 /* Force 12MHz and output/4 for now */
1723 Fout = 12000000;
1724 Fref = 12000000;
1725
1726 memset(&fll_div, 0, sizeof(fll_div));
1727 fll_div.fll_outdiv = 3;
1728 break;
1729
1730 default:
1731 dev_err(codec->dev, "Unknown FLL ID %d\n", fll_id);
1732 return -EINVAL;
1733 }
1734
1735 /* Save current state then disable the FLL and SYSCLK to avoid
1736 * misclocking */
1737 fll1 = snd_soc_read(codec, WM8904_FLL_CONTROL_1);
1738 snd_soc_update_bits(codec, WM8904_CLOCK_RATES_2,
1739 WM8904_CLK_SYS_ENA, 0);
1740 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
1741 WM8904_FLL_OSC_ENA | WM8904_FLL_ENA, 0);
1742
1743 /* Unlock forced oscilator control to switch it on/off */
1744 snd_soc_update_bits(codec, WM8904_CONTROL_INTERFACE_TEST_1,
1745 WM8904_USER_KEY, WM8904_USER_KEY);
1746
1747 if (fll_id == WM8904_FLL_FREE_RUNNING) {
1748 val = WM8904_FLL_FRC_NCO;
1749 } else {
1750 val = 0;
1751 }
1752
1753 snd_soc_update_bits(codec, WM8904_FLL_NCO_TEST_1, WM8904_FLL_FRC_NCO,
1754 val);
1755 snd_soc_update_bits(codec, WM8904_CONTROL_INTERFACE_TEST_1,
1756 WM8904_USER_KEY, 0);
1757
1758 switch (fll_id) {
1759 case WM8904_FLL_MCLK:
1760 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_5,
1761 WM8904_FLL_CLK_REF_SRC_MASK, 0);
1762 break;
1763
1764 case WM8904_FLL_LRCLK:
1765 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_5,
1766 WM8904_FLL_CLK_REF_SRC_MASK, 1);
1767 break;
1768
1769 case WM8904_FLL_BCLK:
1770 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_5,
1771 WM8904_FLL_CLK_REF_SRC_MASK, 2);
1772 break;
1773 }
1774
1775 if (fll_div.k)
1776 val = WM8904_FLL_FRACN_ENA;
1777 else
1778 val = 0;
1779 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
1780 WM8904_FLL_FRACN_ENA, val);
1781
1782 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_2,
1783 WM8904_FLL_OUTDIV_MASK | WM8904_FLL_FRATIO_MASK,
1784 (fll_div.fll_outdiv << WM8904_FLL_OUTDIV_SHIFT) |
1785 (fll_div.fll_fratio << WM8904_FLL_FRATIO_SHIFT));
1786
1787 snd_soc_write(codec, WM8904_FLL_CONTROL_3, fll_div.k);
1788
1789 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_4, WM8904_FLL_N_MASK,
1790 fll_div.n << WM8904_FLL_N_SHIFT);
1791
1792 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_5,
1793 WM8904_FLL_CLK_REF_DIV_MASK,
1794 fll_div.fll_clk_ref_div
1795 << WM8904_FLL_CLK_REF_DIV_SHIFT);
1796
1797 dev_dbg(codec->dev, "FLL configured for %dHz->%dHz\n", Fref, Fout);
1798
1799 wm8904->fll_fref = Fref;
1800 wm8904->fll_fout = Fout;
1801 wm8904->fll_src = source;
1802
1803 /* Enable the FLL if it was previously active */
1804 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
1805 WM8904_FLL_OSC_ENA, fll1);
1806 snd_soc_update_bits(codec, WM8904_FLL_CONTROL_1,
1807 WM8904_FLL_ENA, fll1);
1808
1809 out:
1810 /* Reenable SYSCLK if it was previously active */
1811 snd_soc_update_bits(codec, WM8904_CLOCK_RATES_2,
1812 WM8904_CLK_SYS_ENA, clock2);
1813
1814 return 0;
1815 }
1816
1817 static int wm8904_digital_mute(struct snd_soc_dai *codec_dai, int mute)
1818 {
1819 struct snd_soc_codec *codec = codec_dai->codec;
1820 int val;
1821
1822 if (mute)
1823 val = WM8904_DAC_MUTE;
1824 else
1825 val = 0;
1826
1827 snd_soc_update_bits(codec, WM8904_DAC_DIGITAL_1, WM8904_DAC_MUTE, val);
1828
1829 return 0;
1830 }
1831
1832 static int wm8904_set_bias_level(struct snd_soc_codec *codec,
1833 enum snd_soc_bias_level level)
1834 {
1835 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
1836 int ret;
1837
1838 switch (level) {
1839 case SND_SOC_BIAS_ON:
1840 ret = clk_prepare_enable(wm8904->mclk);
1841 if (ret)
1842 return ret;
1843 break;
1844
1845 case SND_SOC_BIAS_PREPARE:
1846 /* VMID resistance 2*50k */
1847 snd_soc_update_bits(codec, WM8904_VMID_CONTROL_0,
1848 WM8904_VMID_RES_MASK,
1849 0x1 << WM8904_VMID_RES_SHIFT);
1850
1851 /* Normal bias current */
1852 snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0,
1853 WM8904_ISEL_MASK, 2 << WM8904_ISEL_SHIFT);
1854 break;
1855
1856 case SND_SOC_BIAS_STANDBY:
1857 if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
1858 ret = regulator_bulk_enable(ARRAY_SIZE(wm8904->supplies),
1859 wm8904->supplies);
1860 if (ret != 0) {
1861 dev_err(codec->dev,
1862 "Failed to enable supplies: %d\n",
1863 ret);
1864 return ret;
1865 }
1866
1867 regcache_cache_only(wm8904->regmap, false);
1868 regcache_sync(wm8904->regmap);
1869
1870 /* Enable bias */
1871 snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0,
1872 WM8904_BIAS_ENA, WM8904_BIAS_ENA);
1873
1874 /* Enable VMID, VMID buffering, 2*5k resistance */
1875 snd_soc_update_bits(codec, WM8904_VMID_CONTROL_0,
1876 WM8904_VMID_ENA |
1877 WM8904_VMID_RES_MASK,
1878 WM8904_VMID_ENA |
1879 0x3 << WM8904_VMID_RES_SHIFT);
1880
1881 /* Let VMID ramp */
1882 msleep(1);
1883 }
1884
1885 /* Maintain VMID with 2*250k */
1886 snd_soc_update_bits(codec, WM8904_VMID_CONTROL_0,
1887 WM8904_VMID_RES_MASK,
1888 0x2 << WM8904_VMID_RES_SHIFT);
1889
1890 /* Bias current *0.5 */
1891 snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0,
1892 WM8904_ISEL_MASK, 0);
1893 break;
1894
1895 case SND_SOC_BIAS_OFF:
1896 /* Turn off VMID */
1897 snd_soc_update_bits(codec, WM8904_VMID_CONTROL_0,
1898 WM8904_VMID_RES_MASK | WM8904_VMID_ENA, 0);
1899
1900 /* Stop bias generation */
1901 snd_soc_update_bits(codec, WM8904_BIAS_CONTROL_0,
1902 WM8904_BIAS_ENA, 0);
1903
1904 regcache_cache_only(wm8904->regmap, true);
1905 regcache_mark_dirty(wm8904->regmap);
1906
1907 regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies),
1908 wm8904->supplies);
1909 clk_disable_unprepare(wm8904->mclk);
1910 break;
1911 }
1912 return 0;
1913 }
1914
1915 #define WM8904_RATES SNDRV_PCM_RATE_8000_96000
1916
1917 #define WM8904_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1918 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
1919
1920 static const struct snd_soc_dai_ops wm8904_dai_ops = {
1921 .set_sysclk = wm8904_set_sysclk,
1922 .set_fmt = wm8904_set_fmt,
1923 .set_tdm_slot = wm8904_set_tdm_slot,
1924 .set_pll = wm8904_set_fll,
1925 .hw_params = wm8904_hw_params,
1926 .digital_mute = wm8904_digital_mute,
1927 };
1928
1929 static struct snd_soc_dai_driver wm8904_dai = {
1930 .name = "wm8904-hifi",
1931 .playback = {
1932 .stream_name = "Playback",
1933 .channels_min = 2,
1934 .channels_max = 2,
1935 .rates = WM8904_RATES,
1936 .formats = WM8904_FORMATS,
1937 },
1938 .capture = {
1939 .stream_name = "Capture",
1940 .channels_min = 2,
1941 .channels_max = 2,
1942 .rates = WM8904_RATES,
1943 .formats = WM8904_FORMATS,
1944 },
1945 .ops = &wm8904_dai_ops,
1946 .symmetric_rates = 1,
1947 };
1948
1949 static void wm8904_handle_retune_mobile_pdata(struct snd_soc_codec *codec)
1950 {
1951 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
1952 struct wm8904_pdata *pdata = wm8904->pdata;
1953 struct snd_kcontrol_new control =
1954 SOC_ENUM_EXT("EQ Mode",
1955 wm8904->retune_mobile_enum,
1956 wm8904_get_retune_mobile_enum,
1957 wm8904_put_retune_mobile_enum);
1958 int ret, i, j;
1959 const char **t;
1960
1961 /* We need an array of texts for the enum API but the number
1962 * of texts is likely to be less than the number of
1963 * configurations due to the sample rate dependency of the
1964 * configurations. */
1965 wm8904->num_retune_mobile_texts = 0;
1966 wm8904->retune_mobile_texts = NULL;
1967 for (i = 0; i < pdata->num_retune_mobile_cfgs; i++) {
1968 for (j = 0; j < wm8904->num_retune_mobile_texts; j++) {
1969 if (strcmp(pdata->retune_mobile_cfgs[i].name,
1970 wm8904->retune_mobile_texts[j]) == 0)
1971 break;
1972 }
1973
1974 if (j != wm8904->num_retune_mobile_texts)
1975 continue;
1976
1977 /* Expand the array... */
1978 t = krealloc(wm8904->retune_mobile_texts,
1979 sizeof(char *) *
1980 (wm8904->num_retune_mobile_texts + 1),
1981 GFP_KERNEL);
1982 if (t == NULL)
1983 continue;
1984
1985 /* ...store the new entry... */
1986 t[wm8904->num_retune_mobile_texts] =
1987 pdata->retune_mobile_cfgs[i].name;
1988
1989 /* ...and remember the new version. */
1990 wm8904->num_retune_mobile_texts++;
1991 wm8904->retune_mobile_texts = t;
1992 }
1993
1994 dev_dbg(codec->dev, "Allocated %d unique ReTune Mobile names\n",
1995 wm8904->num_retune_mobile_texts);
1996
1997 wm8904->retune_mobile_enum.items = wm8904->num_retune_mobile_texts;
1998 wm8904->retune_mobile_enum.texts = wm8904->retune_mobile_texts;
1999
2000 ret = snd_soc_add_codec_controls(codec, &control, 1);
2001 if (ret != 0)
2002 dev_err(codec->dev,
2003 "Failed to add ReTune Mobile control: %d\n", ret);
2004 }
2005
2006 static void wm8904_handle_pdata(struct snd_soc_codec *codec)
2007 {
2008 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
2009 struct wm8904_pdata *pdata = wm8904->pdata;
2010 int ret, i;
2011
2012 if (!pdata) {
2013 snd_soc_add_codec_controls(codec, wm8904_eq_controls,
2014 ARRAY_SIZE(wm8904_eq_controls));
2015 return;
2016 }
2017
2018 dev_dbg(codec->dev, "%d DRC configurations\n", pdata->num_drc_cfgs);
2019
2020 if (pdata->num_drc_cfgs) {
2021 struct snd_kcontrol_new control =
2022 SOC_ENUM_EXT("DRC Mode", wm8904->drc_enum,
2023 wm8904_get_drc_enum, wm8904_put_drc_enum);
2024
2025 /* We need an array of texts for the enum API */
2026 wm8904->drc_texts = kmalloc(sizeof(char *)
2027 * pdata->num_drc_cfgs, GFP_KERNEL);
2028 if (!wm8904->drc_texts)
2029 return;
2030
2031 for (i = 0; i < pdata->num_drc_cfgs; i++)
2032 wm8904->drc_texts[i] = pdata->drc_cfgs[i].name;
2033
2034 wm8904->drc_enum.items = pdata->num_drc_cfgs;
2035 wm8904->drc_enum.texts = wm8904->drc_texts;
2036
2037 ret = snd_soc_add_codec_controls(codec, &control, 1);
2038 if (ret != 0)
2039 dev_err(codec->dev,
2040 "Failed to add DRC mode control: %d\n", ret);
2041
2042 wm8904_set_drc(codec);
2043 }
2044
2045 dev_dbg(codec->dev, "%d ReTune Mobile configurations\n",
2046 pdata->num_retune_mobile_cfgs);
2047
2048 if (pdata->num_retune_mobile_cfgs)
2049 wm8904_handle_retune_mobile_pdata(codec);
2050 else
2051 snd_soc_add_codec_controls(codec, wm8904_eq_controls,
2052 ARRAY_SIZE(wm8904_eq_controls));
2053 }
2054
2055
2056 static int wm8904_probe(struct snd_soc_codec *codec)
2057 {
2058 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
2059
2060 switch (wm8904->devtype) {
2061 case WM8904:
2062 break;
2063 case WM8912:
2064 memset(&wm8904_dai.capture, 0, sizeof(wm8904_dai.capture));
2065 break;
2066 default:
2067 dev_err(codec->dev, "Unknown device type %d\n",
2068 wm8904->devtype);
2069 return -EINVAL;
2070 }
2071
2072 wm8904_handle_pdata(codec);
2073
2074 wm8904_add_widgets(codec);
2075
2076 return 0;
2077 }
2078
2079 static int wm8904_remove(struct snd_soc_codec *codec)
2080 {
2081 struct wm8904_priv *wm8904 = snd_soc_codec_get_drvdata(codec);
2082
2083 kfree(wm8904->retune_mobile_texts);
2084 kfree(wm8904->drc_texts);
2085
2086 return 0;
2087 }
2088
2089 static const struct snd_soc_codec_driver soc_codec_dev_wm8904 = {
2090 .probe = wm8904_probe,
2091 .remove = wm8904_remove,
2092 .set_bias_level = wm8904_set_bias_level,
2093 .idle_bias_off = true,
2094 };
2095
2096 static const struct regmap_config wm8904_regmap = {
2097 .reg_bits = 8,
2098 .val_bits = 16,
2099
2100 .max_register = WM8904_MAX_REGISTER,
2101 .volatile_reg = wm8904_volatile_register,
2102 .readable_reg = wm8904_readable_register,
2103
2104 .cache_type = REGCACHE_RBTREE,
2105 .reg_defaults = wm8904_reg_defaults,
2106 .num_reg_defaults = ARRAY_SIZE(wm8904_reg_defaults),
2107 };
2108
2109 #ifdef CONFIG_OF
2110 static enum wm8904_type wm8904_data = WM8904;
2111 static enum wm8904_type wm8912_data = WM8912;
2112
2113 static const struct of_device_id wm8904_of_match[] = {
2114 {
2115 .compatible = "wlf,wm8904",
2116 .data = &wm8904_data,
2117 }, {
2118 .compatible = "wlf,wm8912",
2119 .data = &wm8912_data,
2120 }, {
2121 /* sentinel */
2122 }
2123 };
2124 MODULE_DEVICE_TABLE(of, wm8904_of_match);
2125 #endif
2126
2127 static int wm8904_i2c_probe(struct i2c_client *i2c,
2128 const struct i2c_device_id *id)
2129 {
2130 struct wm8904_priv *wm8904;
2131 unsigned int val;
2132 int ret, i;
2133
2134 wm8904 = devm_kzalloc(&i2c->dev, sizeof(struct wm8904_priv),
2135 GFP_KERNEL);
2136 if (wm8904 == NULL)
2137 return -ENOMEM;
2138
2139 wm8904->mclk = devm_clk_get(&i2c->dev, "mclk");
2140 if (IS_ERR(wm8904->mclk)) {
2141 ret = PTR_ERR(wm8904->mclk);
2142 dev_err(&i2c->dev, "Failed to get MCLK\n");
2143 return ret;
2144 }
2145
2146 wm8904->regmap = devm_regmap_init_i2c(i2c, &wm8904_regmap);
2147 if (IS_ERR(wm8904->regmap)) {
2148 ret = PTR_ERR(wm8904->regmap);
2149 dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
2150 ret);
2151 return ret;
2152 }
2153
2154 if (i2c->dev.of_node) {
2155 const struct of_device_id *match;
2156
2157 match = of_match_node(wm8904_of_match, i2c->dev.of_node);
2158 if (match == NULL)
2159 return -EINVAL;
2160 wm8904->devtype = *((enum wm8904_type *)match->data);
2161 } else {
2162 wm8904->devtype = id->driver_data;
2163 }
2164
2165 i2c_set_clientdata(i2c, wm8904);
2166 wm8904->pdata = i2c->dev.platform_data;
2167
2168 for (i = 0; i < ARRAY_SIZE(wm8904->supplies); i++)
2169 wm8904->supplies[i].supply = wm8904_supply_names[i];
2170
2171 ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8904->supplies),
2172 wm8904->supplies);
2173 if (ret != 0) {
2174 dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret);
2175 return ret;
2176 }
2177
2178 ret = regulator_bulk_enable(ARRAY_SIZE(wm8904->supplies),
2179 wm8904->supplies);
2180 if (ret != 0) {
2181 dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret);
2182 return ret;
2183 }
2184
2185 ret = regmap_read(wm8904->regmap, WM8904_SW_RESET_AND_ID, &val);
2186 if (ret < 0) {
2187 dev_err(&i2c->dev, "Failed to read ID register: %d\n", ret);
2188 goto err_enable;
2189 }
2190 if (val != 0x8904) {
2191 dev_err(&i2c->dev, "Device is not a WM8904, ID is %x\n", val);
2192 ret = -EINVAL;
2193 goto err_enable;
2194 }
2195
2196 ret = regmap_read(wm8904->regmap, WM8904_REVISION, &val);
2197 if (ret < 0) {
2198 dev_err(&i2c->dev, "Failed to read device revision: %d\n",
2199 ret);
2200 goto err_enable;
2201 }
2202 dev_info(&i2c->dev, "revision %c\n", val + 'A');
2203
2204 ret = regmap_write(wm8904->regmap, WM8904_SW_RESET_AND_ID, 0);
2205 if (ret < 0) {
2206 dev_err(&i2c->dev, "Failed to issue reset: %d\n", ret);
2207 goto err_enable;
2208 }
2209
2210 /* Change some default settings - latch VU and enable ZC */
2211 regmap_update_bits(wm8904->regmap, WM8904_ADC_DIGITAL_VOLUME_LEFT,
2212 WM8904_ADC_VU, WM8904_ADC_VU);
2213 regmap_update_bits(wm8904->regmap, WM8904_ADC_DIGITAL_VOLUME_RIGHT,
2214 WM8904_ADC_VU, WM8904_ADC_VU);
2215 regmap_update_bits(wm8904->regmap, WM8904_DAC_DIGITAL_VOLUME_LEFT,
2216 WM8904_DAC_VU, WM8904_DAC_VU);
2217 regmap_update_bits(wm8904->regmap, WM8904_DAC_DIGITAL_VOLUME_RIGHT,
2218 WM8904_DAC_VU, WM8904_DAC_VU);
2219 regmap_update_bits(wm8904->regmap, WM8904_ANALOGUE_OUT1_LEFT,
2220 WM8904_HPOUT_VU | WM8904_HPOUTLZC,
2221 WM8904_HPOUT_VU | WM8904_HPOUTLZC);
2222 regmap_update_bits(wm8904->regmap, WM8904_ANALOGUE_OUT1_RIGHT,
2223 WM8904_HPOUT_VU | WM8904_HPOUTRZC,
2224 WM8904_HPOUT_VU | WM8904_HPOUTRZC);
2225 regmap_update_bits(wm8904->regmap, WM8904_ANALOGUE_OUT2_LEFT,
2226 WM8904_LINEOUT_VU | WM8904_LINEOUTLZC,
2227 WM8904_LINEOUT_VU | WM8904_LINEOUTLZC);
2228 regmap_update_bits(wm8904->regmap, WM8904_ANALOGUE_OUT2_RIGHT,
2229 WM8904_LINEOUT_VU | WM8904_LINEOUTRZC,
2230 WM8904_LINEOUT_VU | WM8904_LINEOUTRZC);
2231 regmap_update_bits(wm8904->regmap, WM8904_CLOCK_RATES_0,
2232 WM8904_SR_MODE, 0);
2233
2234 /* Apply configuration from the platform data. */
2235 if (wm8904->pdata) {
2236 for (i = 0; i < WM8904_GPIO_REGS; i++) {
2237 if (!wm8904->pdata->gpio_cfg[i])
2238 continue;
2239
2240 regmap_update_bits(wm8904->regmap,
2241 WM8904_GPIO_CONTROL_1 + i,
2242 0xffff,
2243 wm8904->pdata->gpio_cfg[i]);
2244 }
2245
2246 /* Zero is the default value for these anyway */
2247 for (i = 0; i < WM8904_MIC_REGS; i++)
2248 regmap_update_bits(wm8904->regmap,
2249 WM8904_MIC_BIAS_CONTROL_0 + i,
2250 0xffff,
2251 wm8904->pdata->mic_cfg[i]);
2252 }
2253
2254 /* Set Class W by default - this will be managed by the Class
2255 * G widget at runtime where bypass paths are available.
2256 */
2257 regmap_update_bits(wm8904->regmap, WM8904_CLASS_W_0,
2258 WM8904_CP_DYN_PWR, WM8904_CP_DYN_PWR);
2259
2260 /* Use normal bias source */
2261 regmap_update_bits(wm8904->regmap, WM8904_BIAS_CONTROL_0,
2262 WM8904_POBCTRL, 0);
2263
2264 /* Can leave the device powered off until we need it */
2265 regcache_cache_only(wm8904->regmap, true);
2266 regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies), wm8904->supplies);
2267
2268 ret = snd_soc_register_codec(&i2c->dev,
2269 &soc_codec_dev_wm8904, &wm8904_dai, 1);
2270 if (ret != 0)
2271 return ret;
2272
2273 return 0;
2274
2275 err_enable:
2276 regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies), wm8904->supplies);
2277 return ret;
2278 }
2279
2280 static int wm8904_i2c_remove(struct i2c_client *client)
2281 {
2282 snd_soc_unregister_codec(&client->dev);
2283 return 0;
2284 }
2285
2286 static const struct i2c_device_id wm8904_i2c_id[] = {
2287 { "wm8904", WM8904 },
2288 { "wm8912", WM8912 },
2289 { "wm8918", WM8904 }, /* Actually a subset, updates to follow */
2290 { }
2291 };
2292 MODULE_DEVICE_TABLE(i2c, wm8904_i2c_id);
2293
2294 static struct i2c_driver wm8904_i2c_driver = {
2295 .driver = {
2296 .name = "wm8904",
2297 .of_match_table = of_match_ptr(wm8904_of_match),
2298 },
2299 .probe = wm8904_i2c_probe,
2300 .remove = wm8904_i2c_remove,
2301 .id_table = wm8904_i2c_id,
2302 };
2303
2304 module_i2c_driver(wm8904_i2c_driver);
2305
2306 MODULE_DESCRIPTION("ASoC WM8904 driver");
2307 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
2308 MODULE_LICENSE("GPL");
Linux with added FPC-III support