1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * wm8510.c -- WM8510 ALSA Soc Audio driver
4 *
5 * Copyright 2006 Wolfson Microelectronics PLC.
6 *
7 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
8 */
9
10 #include <linux/module.h>
11 #include <linux/moduleparam.h>
12 #include <linux/kernel.h>
13 #include <linux/init.h>
14 #include <linux/delay.h>
15 #include <linux/pm.h>
16 #include <linux/i2c.h>
17 #include <linux/spi/spi.h>
18 #include <linux/slab.h>
19 #include <linux/regmap.h>
20 #include <sound/core.h>
21 #include <sound/pcm.h>
22 #include <sound/pcm_params.h>
23 #include <sound/soc.h>
24 #include <sound/initval.h>
25
26 #include "wm8510.h"
27
28 /*
29 * wm8510 register cache
30 * We can't read the WM8510 register space when we are
31 * using 2 wire for device control, so we cache them instead.
32 */
33 static const struct reg_default wm8510_reg_defaults[] = {
34 { 1, 0x0000 },
35 { 2, 0x0000 },
36 { 3, 0x0000 },
37 { 4, 0x0050 },
38 { 5, 0x0000 },
39 { 6, 0x0140 },
40 { 7, 0x0000 },
41 { 8, 0x0000 },
42 { 9, 0x0000 },
43 { 10, 0x0000 },
44 { 11, 0x00ff },
45 { 12, 0x0000 },
46 { 13, 0x0000 },
47 { 14, 0x0100 },
48 { 15, 0x00ff },
49 { 16, 0x0000 },
50 { 17, 0x0000 },
51 { 18, 0x012c },
52 { 19, 0x002c },
53 { 20, 0x002c },
54 { 21, 0x002c },
55 { 22, 0x002c },
56 { 23, 0x0000 },
57 { 24, 0x0032 },
58 { 25, 0x0000 },
59 { 26, 0x0000 },
60 { 27, 0x0000 },
61 { 28, 0x0000 },
62 { 29, 0x0000 },
63 { 30, 0x0000 },
64 { 31, 0x0000 },
65 { 32, 0x0038 },
66 { 33, 0x000b },
67 { 34, 0x0032 },
68 { 35, 0x0000 },
69 { 36, 0x0008 },
70 { 37, 0x000c },
71 { 38, 0x0093 },
72 { 39, 0x00e9 },
73 { 40, 0x0000 },
74 { 41, 0x0000 },
75 { 42, 0x0000 },
76 { 43, 0x0000 },
77 { 44, 0x0003 },
78 { 45, 0x0010 },
79 { 46, 0x0000 },
80 { 47, 0x0000 },
81 { 48, 0x0000 },
82 { 49, 0x0002 },
83 { 50, 0x0001 },
84 { 51, 0x0000 },
85 { 52, 0x0000 },
86 { 53, 0x0000 },
87 { 54, 0x0039 },
88 { 55, 0x0000 },
89 { 56, 0x0001 },
90 };
91
wm8510_volatile(struct device * dev,unsigned int reg)92 static bool wm8510_volatile(struct device *dev, unsigned int reg)
93 {
94 switch (reg) {
95 case WM8510_RESET:
96 return true;
97 default:
98 return false;
99 }
100 }
101
102 #define WM8510_POWER1_BIASEN 0x08
103 #define WM8510_POWER1_BUFIOEN 0x10
104
105 #define wm8510_reset(c) snd_soc_component_write(c, WM8510_RESET, 0)
106
107 /* codec private data */
108 struct wm8510_priv {
109 struct regmap *regmap;
110 };
111
112 static const char *wm8510_companding[] = { "Off", "NC", "u-law", "A-law" };
113 static const char *wm8510_deemp[] = { "None", "32kHz", "44.1kHz", "48kHz" };
114 static const char *wm8510_alc[] = { "ALC", "Limiter" };
115
116 static const struct soc_enum wm8510_enum[] = {
117 SOC_ENUM_SINGLE(WM8510_COMP, 1, 4, wm8510_companding), /* adc */
118 SOC_ENUM_SINGLE(WM8510_COMP, 3, 4, wm8510_companding), /* dac */
119 SOC_ENUM_SINGLE(WM8510_DAC, 4, 4, wm8510_deemp),
120 SOC_ENUM_SINGLE(WM8510_ALC3, 8, 2, wm8510_alc),
121 };
122
123 static const struct snd_kcontrol_new wm8510_snd_controls[] = {
124
125 SOC_SINGLE("Digital Loopback Switch", WM8510_COMP, 0, 1, 0),
126
127 SOC_ENUM("DAC Companding", wm8510_enum[1]),
128 SOC_ENUM("ADC Companding", wm8510_enum[0]),
129
130 SOC_ENUM("Playback De-emphasis", wm8510_enum[2]),
131 SOC_SINGLE("DAC Inversion Switch", WM8510_DAC, 0, 1, 0),
132
133 SOC_SINGLE("Master Playback Volume", WM8510_DACVOL, 0, 127, 0),
134
135 SOC_SINGLE("High Pass Filter Switch", WM8510_ADC, 8, 1, 0),
136 SOC_SINGLE("High Pass Cut Off", WM8510_ADC, 4, 7, 0),
137 SOC_SINGLE("ADC Inversion Switch", WM8510_COMP, 0, 1, 0),
138
139 SOC_SINGLE("Capture Volume", WM8510_ADCVOL, 0, 127, 0),
140
141 SOC_SINGLE("DAC Playback Limiter Switch", WM8510_DACLIM1, 8, 1, 0),
142 SOC_SINGLE("DAC Playback Limiter Decay", WM8510_DACLIM1, 4, 15, 0),
143 SOC_SINGLE("DAC Playback Limiter Attack", WM8510_DACLIM1, 0, 15, 0),
144
145 SOC_SINGLE("DAC Playback Limiter Threshold", WM8510_DACLIM2, 4, 7, 0),
146 SOC_SINGLE("DAC Playback Limiter Boost", WM8510_DACLIM2, 0, 15, 0),
147
148 SOC_SINGLE("ALC Enable Switch", WM8510_ALC1, 8, 1, 0),
149 SOC_SINGLE("ALC Capture Max Gain", WM8510_ALC1, 3, 7, 0),
150 SOC_SINGLE("ALC Capture Min Gain", WM8510_ALC1, 0, 7, 0),
151
152 SOC_SINGLE("ALC Capture ZC Switch", WM8510_ALC2, 8, 1, 0),
153 SOC_SINGLE("ALC Capture Hold", WM8510_ALC2, 4, 7, 0),
154 SOC_SINGLE("ALC Capture Target", WM8510_ALC2, 0, 15, 0),
155
156 SOC_ENUM("ALC Capture Mode", wm8510_enum[3]),
157 SOC_SINGLE("ALC Capture Decay", WM8510_ALC3, 4, 15, 0),
158 SOC_SINGLE("ALC Capture Attack", WM8510_ALC3, 0, 15, 0),
159
160 SOC_SINGLE("ALC Capture Noise Gate Switch", WM8510_NGATE, 3, 1, 0),
161 SOC_SINGLE("ALC Capture Noise Gate Threshold", WM8510_NGATE, 0, 7, 0),
162
163 SOC_SINGLE("Capture PGA ZC Switch", WM8510_INPPGA, 7, 1, 0),
164 SOC_SINGLE("Capture PGA Volume", WM8510_INPPGA, 0, 63, 0),
165
166 SOC_SINGLE("Speaker Playback ZC Switch", WM8510_SPKVOL, 7, 1, 0),
167 SOC_SINGLE("Speaker Playback Switch", WM8510_SPKVOL, 6, 1, 1),
168 SOC_SINGLE("Speaker Playback Volume", WM8510_SPKVOL, 0, 63, 0),
169 SOC_SINGLE("Speaker Boost", WM8510_OUTPUT, 2, 1, 0),
170
171 SOC_SINGLE("Capture Boost(+20dB)", WM8510_ADCBOOST, 8, 1, 0),
172 SOC_SINGLE("Mono Playback Switch", WM8510_MONOMIX, 6, 1, 1),
173 };
174
175 /* Speaker Output Mixer */
176 static const struct snd_kcontrol_new wm8510_speaker_mixer_controls[] = {
177 SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_SPKMIX, 1, 1, 0),
178 SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_SPKMIX, 5, 1, 0),
179 SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_SPKMIX, 0, 1, 0),
180 };
181
182 /* Mono Output Mixer */
183 static const struct snd_kcontrol_new wm8510_mono_mixer_controls[] = {
184 SOC_DAPM_SINGLE("Line Bypass Switch", WM8510_MONOMIX, 1, 1, 0),
185 SOC_DAPM_SINGLE("Aux Playback Switch", WM8510_MONOMIX, 2, 1, 0),
186 SOC_DAPM_SINGLE("PCM Playback Switch", WM8510_MONOMIX, 0, 1, 0),
187 };
188
189 static const struct snd_kcontrol_new wm8510_boost_controls[] = {
190 SOC_DAPM_SINGLE("Mic PGA Switch", WM8510_INPPGA, 6, 1, 1),
191 SOC_DAPM_SINGLE("Aux Volume", WM8510_ADCBOOST, 0, 7, 0),
192 SOC_DAPM_SINGLE("Mic Volume", WM8510_ADCBOOST, 4, 7, 0),
193 };
194
195 static const struct snd_kcontrol_new wm8510_micpga_controls[] = {
196 SOC_DAPM_SINGLE("MICP Switch", WM8510_INPUT, 0, 1, 0),
197 SOC_DAPM_SINGLE("MICN Switch", WM8510_INPUT, 1, 1, 0),
198 SOC_DAPM_SINGLE("AUX Switch", WM8510_INPUT, 2, 1, 0),
199 };
200
201 static const struct snd_soc_dapm_widget wm8510_dapm_widgets[] = {
202 SND_SOC_DAPM_MIXER("Speaker Mixer", WM8510_POWER3, 2, 0,
203 &wm8510_speaker_mixer_controls[0],
204 ARRAY_SIZE(wm8510_speaker_mixer_controls)),
205 SND_SOC_DAPM_MIXER("Mono Mixer", WM8510_POWER3, 3, 0,
206 &wm8510_mono_mixer_controls[0],
207 ARRAY_SIZE(wm8510_mono_mixer_controls)),
208 SND_SOC_DAPM_DAC("DAC", "HiFi Playback", WM8510_POWER3, 0, 0),
209 SND_SOC_DAPM_ADC("ADC", "HiFi Capture", WM8510_POWER2, 0, 0),
210 SND_SOC_DAPM_PGA("Aux Input", WM8510_POWER1, 6, 0, NULL, 0),
211 SND_SOC_DAPM_PGA("SpkN Out", WM8510_POWER3, 5, 0, NULL, 0),
212 SND_SOC_DAPM_PGA("SpkP Out", WM8510_POWER3, 6, 0, NULL, 0),
213 SND_SOC_DAPM_PGA("Mono Out", WM8510_POWER3, 7, 0, NULL, 0),
214
215 SND_SOC_DAPM_MIXER("Mic PGA", WM8510_POWER2, 2, 0,
216 &wm8510_micpga_controls[0],
217 ARRAY_SIZE(wm8510_micpga_controls)),
218 SND_SOC_DAPM_MIXER("Boost Mixer", WM8510_POWER2, 4, 0,
219 &wm8510_boost_controls[0],
220 ARRAY_SIZE(wm8510_boost_controls)),
221
222 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8510_POWER1, 4, 0),
223
224 SND_SOC_DAPM_INPUT("MICN"),
225 SND_SOC_DAPM_INPUT("MICP"),
226 SND_SOC_DAPM_INPUT("AUX"),
227 SND_SOC_DAPM_OUTPUT("MONOOUT"),
228 SND_SOC_DAPM_OUTPUT("SPKOUTP"),
229 SND_SOC_DAPM_OUTPUT("SPKOUTN"),
230 };
231
232 static const struct snd_soc_dapm_route wm8510_dapm_routes[] = {
233 /* Mono output mixer */
234 {"Mono Mixer", "PCM Playback Switch", "DAC"},
235 {"Mono Mixer", "Aux Playback Switch", "Aux Input"},
236 {"Mono Mixer", "Line Bypass Switch", "Boost Mixer"},
237
238 /* Speaker output mixer */
239 {"Speaker Mixer", "PCM Playback Switch", "DAC"},
240 {"Speaker Mixer", "Aux Playback Switch", "Aux Input"},
241 {"Speaker Mixer", "Line Bypass Switch", "Boost Mixer"},
242
243 /* Outputs */
244 {"Mono Out", NULL, "Mono Mixer"},
245 {"MONOOUT", NULL, "Mono Out"},
246 {"SpkN Out", NULL, "Speaker Mixer"},
247 {"SpkP Out", NULL, "Speaker Mixer"},
248 {"SPKOUTN", NULL, "SpkN Out"},
249 {"SPKOUTP", NULL, "SpkP Out"},
250
251 /* Microphone PGA */
252 {"Mic PGA", "MICN Switch", "MICN"},
253 {"Mic PGA", "MICP Switch", "MICP"},
254 { "Mic PGA", "AUX Switch", "Aux Input" },
255
256 /* Boost Mixer */
257 {"Boost Mixer", "Mic PGA Switch", "Mic PGA"},
258 {"Boost Mixer", "Mic Volume", "MICP"},
259 {"Boost Mixer", "Aux Volume", "Aux Input"},
260
261 {"ADC", NULL, "Boost Mixer"},
262 };
263
264 struct pll_ {
265 unsigned int pre_div:4; /* prescale - 1 */
266 unsigned int n:4;
267 unsigned int k;
268 };
269
270 static struct pll_ pll_div;
271
272 /* The size in bits of the pll divide multiplied by 10
273 * to allow rounding later */
274 #define FIXED_PLL_SIZE ((1 << 24) * 10)
275
pll_factors(unsigned int target,unsigned int source)276 static void pll_factors(unsigned int target, unsigned int source)
277 {
278 unsigned long long Kpart;
279 unsigned int K, Ndiv, Nmod;
280
281 Ndiv = target / source;
282 if (Ndiv < 6) {
283 source >>= 1;
284 pll_div.pre_div = 1;
285 Ndiv = target / source;
286 } else
287 pll_div.pre_div = 0;
288
289 if ((Ndiv < 6) || (Ndiv > 12))
290 printk(KERN_WARNING
291 "WM8510 N value %u outwith recommended range!d\n",
292 Ndiv);
293
294 pll_div.n = Ndiv;
295 Nmod = target % source;
296 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
297
298 do_div(Kpart, source);
299
300 K = Kpart & 0xFFFFFFFF;
301
302 /* Check if we need to round */
303 if ((K % 10) >= 5)
304 K += 5;
305
306 /* Move down to proper range now rounding is done */
307 K /= 10;
308
309 pll_div.k = K;
310 }
311
wm8510_set_dai_pll(struct snd_soc_dai * codec_dai,int pll_id,int source,unsigned int freq_in,unsigned int freq_out)312 static int wm8510_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
313 int source, unsigned int freq_in, unsigned int freq_out)
314 {
315 struct snd_soc_component *component = codec_dai->component;
316 u16 reg;
317
318 if (freq_in == 0 || freq_out == 0) {
319 /* Clock CODEC directly from MCLK */
320 reg = snd_soc_component_read(component, WM8510_CLOCK);
321 snd_soc_component_write(component, WM8510_CLOCK, reg & 0x0ff);
322
323 /* Turn off PLL */
324 reg = snd_soc_component_read(component, WM8510_POWER1);
325 snd_soc_component_write(component, WM8510_POWER1, reg & 0x1df);
326 return 0;
327 }
328
329 pll_factors(freq_out*4, freq_in);
330
331 snd_soc_component_write(component, WM8510_PLLN, (pll_div.pre_div << 4) | pll_div.n);
332 snd_soc_component_write(component, WM8510_PLLK1, pll_div.k >> 18);
333 snd_soc_component_write(component, WM8510_PLLK2, (pll_div.k >> 9) & 0x1ff);
334 snd_soc_component_write(component, WM8510_PLLK3, pll_div.k & 0x1ff);
335 reg = snd_soc_component_read(component, WM8510_POWER1);
336 snd_soc_component_write(component, WM8510_POWER1, reg | 0x020);
337
338 /* Run CODEC from PLL instead of MCLK */
339 reg = snd_soc_component_read(component, WM8510_CLOCK);
340 snd_soc_component_write(component, WM8510_CLOCK, reg | 0x100);
341
342 return 0;
343 }
344
345 /*
346 * Configure WM8510 clock dividers.
347 */
wm8510_set_dai_clkdiv(struct snd_soc_dai * codec_dai,int div_id,int div)348 static int wm8510_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
349 int div_id, int div)
350 {
351 struct snd_soc_component *component = codec_dai->component;
352 u16 reg;
353
354 switch (div_id) {
355 case WM8510_OPCLKDIV:
356 reg = snd_soc_component_read(component, WM8510_GPIO) & 0x1cf;
357 snd_soc_component_write(component, WM8510_GPIO, reg | div);
358 break;
359 case WM8510_MCLKDIV:
360 reg = snd_soc_component_read(component, WM8510_CLOCK) & 0x11f;
361 snd_soc_component_write(component, WM8510_CLOCK, reg | div);
362 break;
363 case WM8510_ADCCLK:
364 reg = snd_soc_component_read(component, WM8510_ADC) & 0x1f7;
365 snd_soc_component_write(component, WM8510_ADC, reg | div);
366 break;
367 case WM8510_DACCLK:
368 reg = snd_soc_component_read(component, WM8510_DAC) & 0x1f7;
369 snd_soc_component_write(component, WM8510_DAC, reg | div);
370 break;
371 case WM8510_BCLKDIV:
372 reg = snd_soc_component_read(component, WM8510_CLOCK) & 0x1e3;
373 snd_soc_component_write(component, WM8510_CLOCK, reg | div);
374 break;
375 default:
376 return -EINVAL;
377 }
378
379 return 0;
380 }
381
wm8510_set_dai_fmt(struct snd_soc_dai * codec_dai,unsigned int fmt)382 static int wm8510_set_dai_fmt(struct snd_soc_dai *codec_dai,
383 unsigned int fmt)
384 {
385 struct snd_soc_component *component = codec_dai->component;
386 u16 iface = 0;
387 u16 clk = snd_soc_component_read(component, WM8510_CLOCK) & 0x1fe;
388
389 /* set master/slave audio interface */
390 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
391 case SND_SOC_DAIFMT_CBP_CFP:
392 clk |= 0x0001;
393 break;
394 case SND_SOC_DAIFMT_CBC_CFC:
395 break;
396 default:
397 return -EINVAL;
398 }
399
400 /* interface format */
401 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
402 case SND_SOC_DAIFMT_I2S:
403 iface |= 0x0010;
404 break;
405 case SND_SOC_DAIFMT_RIGHT_J:
406 break;
407 case SND_SOC_DAIFMT_LEFT_J:
408 iface |= 0x0008;
409 break;
410 case SND_SOC_DAIFMT_DSP_A:
411 iface |= 0x00018;
412 break;
413 default:
414 return -EINVAL;
415 }
416
417 /* clock inversion */
418 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
419 case SND_SOC_DAIFMT_NB_NF:
420 break;
421 case SND_SOC_DAIFMT_IB_IF:
422 iface |= 0x0180;
423 break;
424 case SND_SOC_DAIFMT_IB_NF:
425 iface |= 0x0100;
426 break;
427 case SND_SOC_DAIFMT_NB_IF:
428 iface |= 0x0080;
429 break;
430 default:
431 return -EINVAL;
432 }
433
434 snd_soc_component_write(component, WM8510_IFACE, iface);
435 snd_soc_component_write(component, WM8510_CLOCK, clk);
436 return 0;
437 }
438
wm8510_pcm_hw_params(struct snd_pcm_substream * substream,struct snd_pcm_hw_params * params,struct snd_soc_dai * dai)439 static int wm8510_pcm_hw_params(struct snd_pcm_substream *substream,
440 struct snd_pcm_hw_params *params,
441 struct snd_soc_dai *dai)
442 {
443 struct snd_soc_component *component = dai->component;
444 u16 iface = snd_soc_component_read(component, WM8510_IFACE) & 0x19f;
445 u16 adn = snd_soc_component_read(component, WM8510_ADD) & 0x1f1;
446
447 /* bit size */
448 switch (params_width(params)) {
449 case 16:
450 break;
451 case 20:
452 iface |= 0x0020;
453 break;
454 case 24:
455 iface |= 0x0040;
456 break;
457 case 32:
458 iface |= 0x0060;
459 break;
460 }
461
462 /* filter coefficient */
463 switch (params_rate(params)) {
464 case 8000:
465 adn |= 0x5 << 1;
466 break;
467 case 11025:
468 adn |= 0x4 << 1;
469 break;
470 case 16000:
471 adn |= 0x3 << 1;
472 break;
473 case 22050:
474 adn |= 0x2 << 1;
475 break;
476 case 32000:
477 adn |= 0x1 << 1;
478 break;
479 case 44100:
480 case 48000:
481 break;
482 }
483
484 snd_soc_component_write(component, WM8510_IFACE, iface);
485 snd_soc_component_write(component, WM8510_ADD, adn);
486 return 0;
487 }
488
wm8510_mute(struct snd_soc_dai * dai,int mute,int direction)489 static int wm8510_mute(struct snd_soc_dai *dai, int mute, int direction)
490 {
491 struct snd_soc_component *component = dai->component;
492 u16 mute_reg = snd_soc_component_read(component, WM8510_DAC) & 0xffbf;
493
494 if (mute)
495 snd_soc_component_write(component, WM8510_DAC, mute_reg | 0x40);
496 else
497 snd_soc_component_write(component, WM8510_DAC, mute_reg);
498 return 0;
499 }
500
501 /* liam need to make this lower power with dapm */
wm8510_set_bias_level(struct snd_soc_component * component,enum snd_soc_bias_level level)502 static int wm8510_set_bias_level(struct snd_soc_component *component,
503 enum snd_soc_bias_level level)
504 {
505 struct wm8510_priv *wm8510 = snd_soc_component_get_drvdata(component);
506 struct snd_soc_dapm_context *dapm = snd_soc_component_to_dapm(component);
507 u16 power1 = snd_soc_component_read(component, WM8510_POWER1) & ~0x3;
508
509 switch (level) {
510 case SND_SOC_BIAS_ON:
511 case SND_SOC_BIAS_PREPARE:
512 power1 |= 0x1; /* VMID 50k */
513 snd_soc_component_write(component, WM8510_POWER1, power1);
514 break;
515
516 case SND_SOC_BIAS_STANDBY:
517 power1 |= WM8510_POWER1_BIASEN | WM8510_POWER1_BUFIOEN;
518
519 if (snd_soc_dapm_get_bias_level(dapm) == SND_SOC_BIAS_OFF) {
520 regcache_sync(wm8510->regmap);
521
522 /* Initial cap charge at VMID 5k */
523 snd_soc_component_write(component, WM8510_POWER1, power1 | 0x3);
524 mdelay(100);
525 }
526
527 power1 |= 0x2; /* VMID 500k */
528 snd_soc_component_write(component, WM8510_POWER1, power1);
529 break;
530
531 case SND_SOC_BIAS_OFF:
532 snd_soc_component_write(component, WM8510_POWER1, 0);
533 snd_soc_component_write(component, WM8510_POWER2, 0);
534 snd_soc_component_write(component, WM8510_POWER3, 0);
535 break;
536 }
537
538 return 0;
539 }
540
541 #define WM8510_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
542 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
543 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000)
544
545 #define WM8510_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
546 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
547
548 static const struct snd_soc_dai_ops wm8510_dai_ops = {
549 .hw_params = wm8510_pcm_hw_params,
550 .mute_stream = wm8510_mute,
551 .set_fmt = wm8510_set_dai_fmt,
552 .set_clkdiv = wm8510_set_dai_clkdiv,
553 .set_pll = wm8510_set_dai_pll,
554 .no_capture_mute = 1,
555 };
556
557 static struct snd_soc_dai_driver wm8510_dai = {
558 .name = "wm8510-hifi",
559 .playback = {
560 .stream_name = "Playback",
561 .channels_min = 2,
562 .channels_max = 2,
563 .rates = WM8510_RATES,
564 .formats = WM8510_FORMATS,},
565 .capture = {
566 .stream_name = "Capture",
567 .channels_min = 2,
568 .channels_max = 2,
569 .rates = WM8510_RATES,
570 .formats = WM8510_FORMATS,},
571 .ops = &wm8510_dai_ops,
572 .symmetric_rate = 1,
573 };
574
wm8510_probe(struct snd_soc_component * component)575 static int wm8510_probe(struct snd_soc_component *component)
576 {
577 wm8510_reset(component);
578
579 return 0;
580 }
581
582 static const struct snd_soc_component_driver soc_component_dev_wm8510 = {
583 .probe = wm8510_probe,
584 .set_bias_level = wm8510_set_bias_level,
585 .controls = wm8510_snd_controls,
586 .num_controls = ARRAY_SIZE(wm8510_snd_controls),
587 .dapm_widgets = wm8510_dapm_widgets,
588 .num_dapm_widgets = ARRAY_SIZE(wm8510_dapm_widgets),
589 .dapm_routes = wm8510_dapm_routes,
590 .num_dapm_routes = ARRAY_SIZE(wm8510_dapm_routes),
591 .suspend_bias_off = 1,
592 .idle_bias_on = 1,
593 .use_pmdown_time = 1,
594 .endianness = 1,
595 };
596
597 static const struct of_device_id wm8510_of_match[] = {
598 { .compatible = "wlf,wm8510" },
599 { },
600 };
601 MODULE_DEVICE_TABLE(of, wm8510_of_match);
602
603 static const struct regmap_config wm8510_regmap = {
604 .reg_bits = 7,
605 .val_bits = 9,
606 .max_register = WM8510_MONOMIX,
607
608 .reg_defaults = wm8510_reg_defaults,
609 .num_reg_defaults = ARRAY_SIZE(wm8510_reg_defaults),
610 .cache_type = REGCACHE_MAPLE,
611
612 .volatile_reg = wm8510_volatile,
613 };
614
615 #if defined(CONFIG_SPI_MASTER)
wm8510_spi_probe(struct spi_device * spi)616 static int wm8510_spi_probe(struct spi_device *spi)
617 {
618 struct wm8510_priv *wm8510;
619 int ret;
620
621 wm8510 = devm_kzalloc(&spi->dev, sizeof(struct wm8510_priv),
622 GFP_KERNEL);
623 if (wm8510 == NULL)
624 return -ENOMEM;
625
626 wm8510->regmap = devm_regmap_init_spi(spi, &wm8510_regmap);
627 if (IS_ERR(wm8510->regmap))
628 return PTR_ERR(wm8510->regmap);
629
630 spi_set_drvdata(spi, wm8510);
631
632 ret = devm_snd_soc_register_component(&spi->dev,
633 &soc_component_dev_wm8510, &wm8510_dai, 1);
634
635 return ret;
636 }
637
638 static struct spi_driver wm8510_spi_driver = {
639 .driver = {
640 .name = "wm8510",
641 .of_match_table = wm8510_of_match,
642 },
643 .probe = wm8510_spi_probe,
644 };
645 #endif /* CONFIG_SPI_MASTER */
646
647 #if IS_ENABLED(CONFIG_I2C)
wm8510_i2c_probe(struct i2c_client * i2c)648 static int wm8510_i2c_probe(struct i2c_client *i2c)
649 {
650 struct wm8510_priv *wm8510;
651 int ret;
652
653 wm8510 = devm_kzalloc(&i2c->dev, sizeof(struct wm8510_priv),
654 GFP_KERNEL);
655 if (wm8510 == NULL)
656 return -ENOMEM;
657
658 wm8510->regmap = devm_regmap_init_i2c(i2c, &wm8510_regmap);
659 if (IS_ERR(wm8510->regmap))
660 return PTR_ERR(wm8510->regmap);
661
662 i2c_set_clientdata(i2c, wm8510);
663
664 ret = devm_snd_soc_register_component(&i2c->dev,
665 &soc_component_dev_wm8510, &wm8510_dai, 1);
666
667 return ret;
668 }
669
670 static const struct i2c_device_id wm8510_i2c_id[] = {
671 { .name = "wm8510" },
672 { }
673 };
674 MODULE_DEVICE_TABLE(i2c, wm8510_i2c_id);
675
676 static struct i2c_driver wm8510_i2c_driver = {
677 .driver = {
678 .name = "wm8510",
679 .of_match_table = wm8510_of_match,
680 },
681 .probe = wm8510_i2c_probe,
682 .id_table = wm8510_i2c_id,
683 };
684 #endif
685
wm8510_modinit(void)686 static int __init wm8510_modinit(void)
687 {
688 int ret = 0;
689 #if IS_ENABLED(CONFIG_I2C)
690 ret = i2c_add_driver(&wm8510_i2c_driver);
691 if (ret != 0) {
692 printk(KERN_ERR "Failed to register WM8510 I2C driver: %d\n",
693 ret);
694 }
695 #endif
696 #if defined(CONFIG_SPI_MASTER)
697 ret = spi_register_driver(&wm8510_spi_driver);
698 if (ret != 0) {
699 printk(KERN_ERR "Failed to register WM8510 SPI driver: %d\n",
700 ret);
701 }
702 #endif
703 return ret;
704 }
705 module_init(wm8510_modinit);
706
wm8510_exit(void)707 static void __exit wm8510_exit(void)
708 {
709 #if IS_ENABLED(CONFIG_I2C)
710 i2c_del_driver(&wm8510_i2c_driver);
711 #endif
712 #if defined(CONFIG_SPI_MASTER)
713 spi_unregister_driver(&wm8510_spi_driver);
714 #endif
715 }
716 module_exit(wm8510_exit);
717
718 MODULE_DESCRIPTION("ASoC WM8510 driver");
719 MODULE_AUTHOR("Liam Girdwood");
720 MODULE_LICENSE("GPL");
721