2 * wm8962.c -- WM8962 ALSA SoC Audio driver
4 * Copyright 2010 Wolfson Microelectronics plc
6 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
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.
14 #include <linux/module.h>
15 #include <linux/moduleparam.h>
16 #include <linux/init.h>
17 #include <linux/delay.h>
19 #include <linux/gcd.h>
20 #include <linux/i2c.h>
21 #include <linux/input.h>
22 #include <linux/platform_device.h>
23 #include <linux/regulator/consumer.h>
24 #include <linux/slab.h>
25 #include <linux/workqueue.h>
26 #include <sound/core.h>
27 #include <sound/pcm.h>
28 #include <sound/pcm_params.h>
29 #include <sound/soc.h>
30 #include <sound/soc-dapm.h>
31 #include <sound/initval.h>
32 #include <sound/tlv.h>
33 #include <sound/wm8962.h>
37 static struct snd_soc_codec *wm8962_codec;
38 struct snd_soc_codec_device soc_codec_dev_wm8962;
40 #define WM8962_NUM_SUPPLIES 8
41 static const char *wm8962_supply_names[WM8962_NUM_SUPPLIES] = {
52 /* codec private data */
54 struct snd_soc_codec codec;
55 u16 reg_cache[WM8962_MAX_REGISTER + 1];
60 int bclk; /* Desired BCLK */
67 struct regulator_bulk_data supplies[WM8962_NUM_SUPPLIES];
68 struct notifier_block disable_nb[WM8962_NUM_SUPPLIES];
70 #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
71 struct input_dev *beep;
72 struct work_struct beep_work;
77 /* We can't use the same notifier block for more than one supply and
78 * there's no way I can see to get from a callback to the caller
79 * except container_of().
81 #define WM8962_REGULATOR_EVENT(n) \
82 static int wm8962_regulator_event_##n(struct notifier_block *nb, \
83 unsigned long event, void *data) \
85 struct wm8962_priv *wm8962 = container_of(nb, struct wm8962_priv, \
87 if (event & REGULATOR_EVENT_DISABLE) { \
88 wm8962->codec.cache_sync = 1; \
93 WM8962_REGULATOR_EVENT(0)
94 WM8962_REGULATOR_EVENT(1)
95 WM8962_REGULATOR_EVENT(2)
96 WM8962_REGULATOR_EVENT(3)
97 WM8962_REGULATOR_EVENT(4)
98 WM8962_REGULATOR_EVENT(5)
99 WM8962_REGULATOR_EVENT(6)
100 WM8962_REGULATOR_EVENT(7)
102 static int wm8962_volatile_register(unsigned int reg)
104 if (wm8962_reg_access[reg].vol)
110 static int wm8962_readable(unsigned int reg)
112 if (wm8962_reg_access[reg].read)
118 static int wm8962_reset(struct snd_soc_codec *codec)
120 return snd_soc_write(codec, WM8962_SOFTWARE_RESET, 0);
123 static const DECLARE_TLV_DB_SCALE(inpga_tlv, -2325, 75, 0);
124 static const DECLARE_TLV_DB_SCALE(mixin_tlv, -1500, 300, 0);
125 static const unsigned int mixinpga_tlv[] = {
126 TLV_DB_RANGE_HEAD(7),
127 0, 1, TLV_DB_SCALE_ITEM(0, 600, 0),
128 2, 2, TLV_DB_SCALE_ITEM(1300, 1300, 0),
129 3, 4, TLV_DB_SCALE_ITEM(1800, 200, 0),
130 5, 5, TLV_DB_SCALE_ITEM(2400, 0, 0),
131 6, 7, TLV_DB_SCALE_ITEM(2700, 300, 0),
133 static const DECLARE_TLV_DB_SCALE(beep_tlv, -9600, 600, 1);
134 static const DECLARE_TLV_DB_SCALE(digital_tlv, -7200, 75, 1);
135 static const DECLARE_TLV_DB_SCALE(st_tlv, -3600, 300, 0);
136 static const DECLARE_TLV_DB_SCALE(inmix_tlv, -600, 600, 0);
137 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0);
138 static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
139 static const DECLARE_TLV_DB_SCALE(hp_tlv, -700, 100, 0);
140 static const unsigned int classd_tlv[] = {
141 TLV_DB_RANGE_HEAD(7),
142 0, 6, TLV_DB_SCALE_ITEM(0, 150, 0),
143 7, 7, TLV_DB_SCALE_ITEM(1200, 0, 0),
146 /* The VU bits for the headphones are in a different register to the mute
147 * bits and only take effect on the PGA if it is actually powered.
149 static int wm8962_put_hp_sw(struct snd_kcontrol *kcontrol,
150 struct snd_ctl_elem_value *ucontrol)
152 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
153 u16 *reg_cache = codec->reg_cache;
156 /* Apply the update (if any) */
157 ret = snd_soc_put_volsw(kcontrol, ucontrol);
161 /* If the left PGA is enabled hit that VU bit... */
162 if (reg_cache[WM8962_PWR_MGMT_2] & WM8962_HPOUTL_PGA_ENA)
163 return snd_soc_write(codec, WM8962_HPOUTL_VOLUME,
164 reg_cache[WM8962_HPOUTL_VOLUME]);
166 /* ...otherwise the right. The VU is stereo. */
167 if (reg_cache[WM8962_PWR_MGMT_2] & WM8962_HPOUTR_PGA_ENA)
168 return snd_soc_write(codec, WM8962_HPOUTR_VOLUME,
169 reg_cache[WM8962_HPOUTR_VOLUME]);
174 /* The VU bits for the speakers are in a different register to the mute
175 * bits and only take effect on the PGA if it is actually powered.
177 static int wm8962_put_spk_sw(struct snd_kcontrol *kcontrol,
178 struct snd_ctl_elem_value *ucontrol)
180 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
181 u16 *reg_cache = codec->reg_cache;
184 /* Apply the update (if any) */
185 ret = snd_soc_put_volsw(kcontrol, ucontrol);
189 /* If the left PGA is enabled hit that VU bit... */
190 if (reg_cache[WM8962_PWR_MGMT_2] & WM8962_SPKOUTL_PGA_ENA)
191 return snd_soc_write(codec, WM8962_SPKOUTL_VOLUME,
192 reg_cache[WM8962_SPKOUTL_VOLUME]);
194 /* ...otherwise the right. The VU is stereo. */
195 if (reg_cache[WM8962_PWR_MGMT_2] & WM8962_SPKOUTR_PGA_ENA)
196 return snd_soc_write(codec, WM8962_SPKOUTR_VOLUME,
197 reg_cache[WM8962_SPKOUTR_VOLUME]);
202 static const struct snd_kcontrol_new wm8962_snd_controls[] = {
203 SOC_DOUBLE("Input Mixer Switch", WM8962_INPUT_MIXER_CONTROL_1, 3, 2, 1, 1),
205 SOC_SINGLE_TLV("MIXINL IN2L Volume", WM8962_LEFT_INPUT_MIXER_VOLUME, 6, 7, 0,
207 SOC_SINGLE_TLV("MIXINL PGA Volume", WM8962_LEFT_INPUT_MIXER_VOLUME, 3, 7, 0,
209 SOC_SINGLE_TLV("MIXINL IN3L Volume", WM8962_LEFT_INPUT_MIXER_VOLUME, 0, 7, 0,
212 SOC_SINGLE_TLV("MIXINR IN2R Volume", WM8962_RIGHT_INPUT_MIXER_VOLUME, 6, 7, 0,
214 SOC_SINGLE_TLV("MIXINR PGA Volume", WM8962_RIGHT_INPUT_MIXER_VOLUME, 3, 7, 0,
216 SOC_SINGLE_TLV("MIXINR IN3R Volume", WM8962_RIGHT_INPUT_MIXER_VOLUME, 0, 7, 0,
219 SOC_DOUBLE_R_TLV("Digital Capture Volume", WM8962_LEFT_ADC_VOLUME,
220 WM8962_RIGHT_ADC_VOLUME, 1, 127, 0, digital_tlv),
221 SOC_DOUBLE_R_TLV("Capture Volume", WM8962_LEFT_INPUT_VOLUME,
222 WM8962_RIGHT_INPUT_VOLUME, 0, 63, 0, inpga_tlv),
223 SOC_DOUBLE_R("Capture Switch", WM8962_LEFT_INPUT_VOLUME,
224 WM8962_RIGHT_INPUT_VOLUME, 7, 1, 1),
225 SOC_DOUBLE_R("Capture ZC Switch", WM8962_LEFT_INPUT_VOLUME,
226 WM8962_RIGHT_INPUT_VOLUME, 6, 1, 1),
228 SOC_DOUBLE_R_TLV("Sidetone Volume", WM8962_DAC_DSP_MIXING_1,
229 WM8962_DAC_DSP_MIXING_2, 4, 12, 0, st_tlv),
231 SOC_DOUBLE_R_TLV("Digital Playback Volume", WM8962_LEFT_DAC_VOLUME,
232 WM8962_RIGHT_DAC_VOLUME, 1, 127, 0, digital_tlv),
233 SOC_SINGLE("DAC High Performance Switch", WM8962_ADC_DAC_CONTROL_2, 0, 1, 0),
235 SOC_SINGLE("ADC High Performance Switch", WM8962_ADDITIONAL_CONTROL_1,
238 SOC_SINGLE_TLV("Beep Volume", WM8962_BEEP_GENERATOR_1, 4, 15, 0, beep_tlv),
240 SOC_DOUBLE_R_TLV("Headphone Volume", WM8962_HPOUTL_VOLUME,
241 WM8962_HPOUTR_VOLUME, 0, 127, 0, out_tlv),
242 SOC_DOUBLE_EXT("Headphone Switch", WM8962_PWR_MGMT_2, 1, 0, 1, 1,
243 snd_soc_get_volsw, wm8962_put_hp_sw),
244 SOC_DOUBLE_R("Headphone ZC Switch", WM8962_HPOUTL_VOLUME, WM8962_HPOUTR_VOLUME,
246 SOC_DOUBLE_TLV("Headphone Aux Volume", WM8962_ANALOGUE_HP_2, 3, 6, 7, 0,
249 SOC_DOUBLE_R("Headphone Mixer Switch", WM8962_HEADPHONE_MIXER_3,
250 WM8962_HEADPHONE_MIXER_4, 8, 1, 1),
252 SOC_SINGLE_TLV("HPMIXL IN4L Volume", WM8962_HEADPHONE_MIXER_3,
253 3, 7, 0, bypass_tlv),
254 SOC_SINGLE_TLV("HPMIXL IN4R Volume", WM8962_HEADPHONE_MIXER_3,
255 0, 7, 0, bypass_tlv),
256 SOC_SINGLE_TLV("HPMIXL MIXINL Volume", WM8962_HEADPHONE_MIXER_3,
258 SOC_SINGLE_TLV("HPMIXL MIXINR Volume", WM8962_HEADPHONE_MIXER_3,
261 SOC_SINGLE_TLV("HPMIXR IN4L Volume", WM8962_HEADPHONE_MIXER_4,
262 3, 7, 0, bypass_tlv),
263 SOC_SINGLE_TLV("HPMIXR IN4R Volume", WM8962_HEADPHONE_MIXER_4,
264 0, 7, 0, bypass_tlv),
265 SOC_SINGLE_TLV("HPMIXR MIXINL Volume", WM8962_HEADPHONE_MIXER_4,
267 SOC_SINGLE_TLV("HPMIXR MIXINR Volume", WM8962_HEADPHONE_MIXER_4,
270 SOC_SINGLE_TLV("Speaker Boost Volume", WM8962_CLASS_D_CONTROL_2, 0, 7, 0,
274 static const struct snd_kcontrol_new wm8962_spk_mono_controls[] = {
275 SOC_SINGLE_TLV("Speaker Volume", WM8962_SPKOUTL_VOLUME, 0, 127, 0, out_tlv),
276 SOC_SINGLE_EXT("Speaker Switch", WM8962_CLASS_D_CONTROL_1, 1, 1, 1,
277 snd_soc_get_volsw, wm8962_put_spk_sw),
278 SOC_SINGLE("Speaker ZC Switch", WM8962_SPKOUTL_VOLUME, 7, 1, 0),
280 SOC_SINGLE("Speaker Mixer Switch", WM8962_SPEAKER_MIXER_3, 8, 1, 1),
281 SOC_SINGLE_TLV("Speaker Mixer IN4L Volume", WM8962_SPEAKER_MIXER_3,
282 3, 7, 0, bypass_tlv),
283 SOC_SINGLE_TLV("Speaker Mixer IN4R Volume", WM8962_SPEAKER_MIXER_3,
284 0, 7, 0, bypass_tlv),
285 SOC_SINGLE_TLV("Speaker Mixer MIXINL Volume", WM8962_SPEAKER_MIXER_3,
287 SOC_SINGLE_TLV("Speaker Mixer MIXINR Volume", WM8962_SPEAKER_MIXER_3,
289 SOC_SINGLE_TLV("Speaker Mixer DACL Volume", WM8962_SPEAKER_MIXER_5,
291 SOC_SINGLE_TLV("Speaker Mixer DACR Volume", WM8962_SPEAKER_MIXER_5,
295 static const struct snd_kcontrol_new wm8962_spk_stereo_controls[] = {
296 SOC_DOUBLE_R_TLV("Speaker Volume", WM8962_SPKOUTL_VOLUME,
297 WM8962_SPKOUTR_VOLUME, 0, 127, 0, out_tlv),
298 SOC_DOUBLE_EXT("Speaker Switch", WM8962_CLASS_D_CONTROL_1, 1, 0, 1, 1,
299 snd_soc_get_volsw, wm8962_put_spk_sw),
300 SOC_DOUBLE_R("Speaker ZC Switch", WM8962_SPKOUTL_VOLUME, WM8962_SPKOUTR_VOLUME,
303 SOC_DOUBLE_R("Speaker Mixer Switch", WM8962_SPEAKER_MIXER_3,
304 WM8962_SPEAKER_MIXER_4, 8, 1, 1),
306 SOC_SINGLE_TLV("SPKOUTL Mixer IN4L Volume", WM8962_SPEAKER_MIXER_3,
307 3, 7, 0, bypass_tlv),
308 SOC_SINGLE_TLV("SPKOUTL Mixer IN4R Volume", WM8962_SPEAKER_MIXER_3,
309 0, 7, 0, bypass_tlv),
310 SOC_SINGLE_TLV("SPKOUTL Mixer MIXINL Volume", WM8962_SPEAKER_MIXER_3,
312 SOC_SINGLE_TLV("SPKOUTL Mixer MIXINR Volume", WM8962_SPEAKER_MIXER_3,
314 SOC_SINGLE_TLV("SPKOUTL Mixer DACL Volume", WM8962_SPEAKER_MIXER_5,
316 SOC_SINGLE_TLV("SPKOUTL Mixer DACR Volume", WM8962_SPEAKER_MIXER_5,
319 SOC_SINGLE_TLV("SPKOUTR Mixer IN4L Volume", WM8962_SPEAKER_MIXER_4,
320 3, 7, 0, bypass_tlv),
321 SOC_SINGLE_TLV("SPKOUTR Mixer IN4R Volume", WM8962_SPEAKER_MIXER_4,
322 0, 7, 0, bypass_tlv),
323 SOC_SINGLE_TLV("SPKOUTR Mixer MIXINL Volume", WM8962_SPEAKER_MIXER_4,
325 SOC_SINGLE_TLV("SPKOUTR Mixer MIXINR Volume", WM8962_SPEAKER_MIXER_4,
327 SOC_SINGLE_TLV("SPKOUTR Mixer DACL Volume", WM8962_SPEAKER_MIXER_5,
329 SOC_SINGLE_TLV("SPKOUTR Mixer DACR Volume", WM8962_SPEAKER_MIXER_5,
333 static int sysclk_event(struct snd_soc_dapm_widget *w,
334 struct snd_kcontrol *kcontrol, int event)
336 struct snd_soc_codec *codec = w->codec;
340 src = snd_soc_read(codec, WM8962_CLOCKING2) & WM8962_SYSCLK_SRC_MASK;
346 case 0x200: /* FLL */
350 dev_err(codec->dev, "Unknown SYSCLK source %x\n", src);
355 case SND_SOC_DAPM_PRE_PMU:
357 snd_soc_update_bits(codec, WM8962_FLL_CONTROL_1,
358 WM8962_FLL_ENA, WM8962_FLL_ENA);
361 case SND_SOC_DAPM_POST_PMD:
363 snd_soc_update_bits(codec, WM8962_FLL_CONTROL_1,
375 static int cp_event(struct snd_soc_dapm_widget *w,
376 struct snd_kcontrol *kcontrol, int event)
379 case SND_SOC_DAPM_POST_PMU:
391 static int hp_event(struct snd_soc_dapm_widget *w,
392 struct snd_kcontrol *kcontrol, int event)
394 struct snd_soc_codec *codec = w->codec;
397 int expected = (WM8962_DCS_STARTUP_DONE_HP1L |
398 WM8962_DCS_STARTUP_DONE_HP1R);
401 case SND_SOC_DAPM_POST_PMU:
402 snd_soc_update_bits(codec, WM8962_ANALOGUE_HP_0,
403 WM8962_HP1L_ENA | WM8962_HP1R_ENA,
404 WM8962_HP1L_ENA | WM8962_HP1R_ENA);
407 snd_soc_update_bits(codec, WM8962_ANALOGUE_HP_0,
408 WM8962_HP1L_ENA_DLY | WM8962_HP1R_ENA_DLY,
409 WM8962_HP1L_ENA_DLY | WM8962_HP1R_ENA_DLY);
411 /* Start the DC servo */
412 snd_soc_update_bits(codec, WM8962_DC_SERVO_1,
413 WM8962_HP1L_DCS_ENA | WM8962_HP1R_DCS_ENA |
414 WM8962_HP1L_DCS_STARTUP |
415 WM8962_HP1R_DCS_STARTUP,
416 WM8962_HP1L_DCS_ENA | WM8962_HP1R_DCS_ENA |
417 WM8962_HP1L_DCS_STARTUP |
418 WM8962_HP1R_DCS_STARTUP);
420 /* Wait for it to complete, should be well under 100ms */
424 reg = snd_soc_read(codec, WM8962_DC_SERVO_6);
427 "Failed to read DCS status: %d\n",
431 dev_dbg(codec->dev, "DCS status: %x\n", reg);
432 } while (++timeout < 200 && (reg & expected) != expected);
434 if ((reg & expected) != expected)
435 dev_err(codec->dev, "DC servo timed out\n");
437 dev_dbg(codec->dev, "DC servo complete after %dms\n",
440 snd_soc_update_bits(codec, WM8962_ANALOGUE_HP_0,
441 WM8962_HP1L_ENA_OUTP |
442 WM8962_HP1R_ENA_OUTP,
443 WM8962_HP1L_ENA_OUTP |
444 WM8962_HP1R_ENA_OUTP);
447 snd_soc_update_bits(codec, WM8962_ANALOGUE_HP_0,
448 WM8962_HP1L_RMV_SHORT |
449 WM8962_HP1R_RMV_SHORT,
450 WM8962_HP1L_RMV_SHORT |
451 WM8962_HP1R_RMV_SHORT);
454 case SND_SOC_DAPM_PRE_PMD:
455 snd_soc_update_bits(codec, WM8962_ANALOGUE_HP_0,
456 WM8962_HP1L_RMV_SHORT |
457 WM8962_HP1R_RMV_SHORT, 0);
461 snd_soc_update_bits(codec, WM8962_DC_SERVO_1,
462 WM8962_HP1L_DCS_ENA | WM8962_HP1R_DCS_ENA |
463 WM8962_HP1L_DCS_STARTUP |
464 WM8962_HP1R_DCS_STARTUP,
467 snd_soc_update_bits(codec, WM8962_ANALOGUE_HP_0,
468 WM8962_HP1L_ENA | WM8962_HP1R_ENA |
469 WM8962_HP1L_ENA_DLY | WM8962_HP1R_ENA_DLY |
470 WM8962_HP1L_ENA_OUTP |
471 WM8962_HP1R_ENA_OUTP, 0);
484 /* VU bits for the output PGAs only take effect while the PGA is powered */
485 static int out_pga_event(struct snd_soc_dapm_widget *w,
486 struct snd_kcontrol *kcontrol, int event)
488 struct snd_soc_codec *codec = w->codec;
489 u16 *reg_cache = codec->reg_cache;
493 case WM8962_HPOUTR_PGA_ENA_SHIFT:
494 reg = WM8962_HPOUTR_VOLUME;
496 case WM8962_HPOUTL_PGA_ENA_SHIFT:
497 reg = WM8962_HPOUTL_VOLUME;
499 case WM8962_SPKOUTR_PGA_ENA_SHIFT:
500 reg = WM8962_SPKOUTR_VOLUME;
502 case WM8962_SPKOUTL_PGA_ENA_SHIFT:
503 reg = WM8962_SPKOUTL_VOLUME;
511 case SND_SOC_DAPM_POST_PMU:
512 return snd_soc_write(codec, reg, reg_cache[reg]);
519 static const char *st_text[] = { "None", "Right", "Left" };
521 static const struct soc_enum str_enum =
522 SOC_ENUM_SINGLE(WM8962_DAC_DSP_MIXING_1, 2, 3, st_text);
524 static const struct snd_kcontrol_new str_mux =
525 SOC_DAPM_ENUM("Right Sidetone", str_enum);
527 static const struct soc_enum stl_enum =
528 SOC_ENUM_SINGLE(WM8962_DAC_DSP_MIXING_2, 2, 3, st_text);
530 static const struct snd_kcontrol_new stl_mux =
531 SOC_DAPM_ENUM("Left Sidetone", stl_enum);
533 static const char *outmux_text[] = { "DAC", "Mixer" };
535 static const struct soc_enum spkoutr_enum =
536 SOC_ENUM_SINGLE(WM8962_SPEAKER_MIXER_2, 7, 2, outmux_text);
538 static const struct snd_kcontrol_new spkoutr_mux =
539 SOC_DAPM_ENUM("SPKOUTR Mux", spkoutr_enum);
541 static const struct soc_enum spkoutl_enum =
542 SOC_ENUM_SINGLE(WM8962_SPEAKER_MIXER_1, 7, 2, outmux_text);
544 static const struct snd_kcontrol_new spkoutl_mux =
545 SOC_DAPM_ENUM("SPKOUTL Mux", spkoutl_enum);
547 static const struct soc_enum hpoutr_enum =
548 SOC_ENUM_SINGLE(WM8962_HEADPHONE_MIXER_2, 7, 2, outmux_text);
550 static const struct snd_kcontrol_new hpoutr_mux =
551 SOC_DAPM_ENUM("HPOUTR Mux", hpoutr_enum);
553 static const struct soc_enum hpoutl_enum =
554 SOC_ENUM_SINGLE(WM8962_HEADPHONE_MIXER_1, 7, 2, outmux_text);
556 static const struct snd_kcontrol_new hpoutl_mux =
557 SOC_DAPM_ENUM("HPOUTL Mux", hpoutl_enum);
559 static const struct snd_kcontrol_new inpgal[] = {
560 SOC_DAPM_SINGLE("IN1L Switch", WM8962_LEFT_INPUT_PGA_CONTROL, 3, 1, 0),
561 SOC_DAPM_SINGLE("IN2L Switch", WM8962_LEFT_INPUT_PGA_CONTROL, 2, 1, 0),
562 SOC_DAPM_SINGLE("IN3L Switch", WM8962_LEFT_INPUT_PGA_CONTROL, 1, 1, 0),
563 SOC_DAPM_SINGLE("IN4L Switch", WM8962_LEFT_INPUT_PGA_CONTROL, 0, 1, 0),
566 static const struct snd_kcontrol_new inpgar[] = {
567 SOC_DAPM_SINGLE("IN1R Switch", WM8962_RIGHT_INPUT_PGA_CONTROL, 3, 1, 0),
568 SOC_DAPM_SINGLE("IN2R Switch", WM8962_RIGHT_INPUT_PGA_CONTROL, 2, 1, 0),
569 SOC_DAPM_SINGLE("IN3R Switch", WM8962_RIGHT_INPUT_PGA_CONTROL, 1, 1, 0),
570 SOC_DAPM_SINGLE("IN4R Switch", WM8962_RIGHT_INPUT_PGA_CONTROL, 0, 1, 0),
573 static const struct snd_kcontrol_new mixinl[] = {
574 SOC_DAPM_SINGLE("IN2L Switch", WM8962_INPUT_MIXER_CONTROL_2, 5, 1, 0),
575 SOC_DAPM_SINGLE("IN3L Switch", WM8962_INPUT_MIXER_CONTROL_2, 4, 1, 0),
576 SOC_DAPM_SINGLE("PGA Switch", WM8962_INPUT_MIXER_CONTROL_2, 3, 1, 0),
579 static const struct snd_kcontrol_new mixinr[] = {
580 SOC_DAPM_SINGLE("IN2R Switch", WM8962_INPUT_MIXER_CONTROL_2, 2, 1, 0),
581 SOC_DAPM_SINGLE("IN3R Switch", WM8962_INPUT_MIXER_CONTROL_2, 1, 1, 0),
582 SOC_DAPM_SINGLE("PGA Switch", WM8962_INPUT_MIXER_CONTROL_2, 0, 1, 0),
585 static const struct snd_kcontrol_new hpmixl[] = {
586 SOC_DAPM_SINGLE("DACL Switch", WM8962_HEADPHONE_MIXER_1, 5, 1, 0),
587 SOC_DAPM_SINGLE("DACR Switch", WM8962_HEADPHONE_MIXER_1, 4, 1, 0),
588 SOC_DAPM_SINGLE("MIXINL Switch", WM8962_HEADPHONE_MIXER_1, 3, 1, 0),
589 SOC_DAPM_SINGLE("MIXINR Switch", WM8962_HEADPHONE_MIXER_1, 2, 1, 0),
590 SOC_DAPM_SINGLE("IN4L Switch", WM8962_HEADPHONE_MIXER_1, 1, 1, 0),
591 SOC_DAPM_SINGLE("IN4R Switch", WM8962_HEADPHONE_MIXER_1, 0, 1, 0),
594 static const struct snd_kcontrol_new hpmixr[] = {
595 SOC_DAPM_SINGLE("DACL Switch", WM8962_HEADPHONE_MIXER_2, 5, 1, 0),
596 SOC_DAPM_SINGLE("DACR Switch", WM8962_HEADPHONE_MIXER_2, 4, 1, 0),
597 SOC_DAPM_SINGLE("MIXINL Switch", WM8962_HEADPHONE_MIXER_2, 3, 1, 0),
598 SOC_DAPM_SINGLE("MIXINR Switch", WM8962_HEADPHONE_MIXER_2, 2, 1, 0),
599 SOC_DAPM_SINGLE("IN4L Switch", WM8962_HEADPHONE_MIXER_2, 1, 1, 0),
600 SOC_DAPM_SINGLE("IN4R Switch", WM8962_HEADPHONE_MIXER_2, 0, 1, 0),
603 static const struct snd_kcontrol_new spkmixl[] = {
604 SOC_DAPM_SINGLE("DACL Switch", WM8962_SPEAKER_MIXER_1, 5, 1, 0),
605 SOC_DAPM_SINGLE("DACR Switch", WM8962_SPEAKER_MIXER_1, 4, 1, 0),
606 SOC_DAPM_SINGLE("MIXINL Switch", WM8962_SPEAKER_MIXER_1, 3, 1, 0),
607 SOC_DAPM_SINGLE("MIXINR Switch", WM8962_SPEAKER_MIXER_1, 2, 1, 0),
608 SOC_DAPM_SINGLE("IN4L Switch", WM8962_SPEAKER_MIXER_1, 1, 1, 0),
609 SOC_DAPM_SINGLE("IN4R Switch", WM8962_SPEAKER_MIXER_1, 0, 1, 0),
612 static const struct snd_kcontrol_new spkmixr[] = {
613 SOC_DAPM_SINGLE("DACL Switch", WM8962_SPEAKER_MIXER_2, 5, 1, 0),
614 SOC_DAPM_SINGLE("DACR Switch", WM8962_SPEAKER_MIXER_2, 4, 1, 0),
615 SOC_DAPM_SINGLE("MIXINL Switch", WM8962_SPEAKER_MIXER_2, 3, 1, 0),
616 SOC_DAPM_SINGLE("MIXINR Switch", WM8962_SPEAKER_MIXER_2, 2, 1, 0),
617 SOC_DAPM_SINGLE("IN4L Switch", WM8962_SPEAKER_MIXER_2, 1, 1, 0),
618 SOC_DAPM_SINGLE("IN4R Switch", WM8962_SPEAKER_MIXER_2, 0, 1, 0),
621 static const struct snd_soc_dapm_widget wm8962_dapm_widgets[] = {
622 SND_SOC_DAPM_INPUT("IN1L"),
623 SND_SOC_DAPM_INPUT("IN1R"),
624 SND_SOC_DAPM_INPUT("IN2L"),
625 SND_SOC_DAPM_INPUT("IN2R"),
626 SND_SOC_DAPM_INPUT("IN3L"),
627 SND_SOC_DAPM_INPUT("IN3R"),
628 SND_SOC_DAPM_INPUT("IN4L"),
629 SND_SOC_DAPM_INPUT("IN4R"),
630 SND_SOC_DAPM_INPUT("Beep"),
632 SND_SOC_DAPM_SUPPLY("Class G", WM8962_CHARGE_PUMP_B, 0, 1, NULL, 0),
633 SND_SOC_DAPM_SUPPLY("SYSCLK", WM8962_CLOCKING2, 5, 0, sysclk_event,
634 SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD),
635 SND_SOC_DAPM_SUPPLY("Charge Pump", WM8962_CHARGE_PUMP_1, 0, 0, cp_event,
636 SND_SOC_DAPM_POST_PMU),
637 SND_SOC_DAPM_SUPPLY("TOCLK", WM8962_ADDITIONAL_CONTROL_1, 0, 0, NULL, 0),
639 SND_SOC_DAPM_MIXER("INPGAL", WM8962_LEFT_INPUT_PGA_CONTROL, 4, 0,
640 inpgal, ARRAY_SIZE(inpgal)),
641 SND_SOC_DAPM_MIXER("INPGAR", WM8962_RIGHT_INPUT_PGA_CONTROL, 4, 0,
642 inpgar, ARRAY_SIZE(inpgar)),
643 SND_SOC_DAPM_MIXER("MIXINL", WM8962_PWR_MGMT_1, 5, 0,
644 mixinl, ARRAY_SIZE(mixinl)),
645 SND_SOC_DAPM_MIXER("MIXINR", WM8962_PWR_MGMT_1, 4, 0,
646 mixinr, ARRAY_SIZE(mixinr)),
648 SND_SOC_DAPM_ADC("ADCL", "Capture", WM8962_PWR_MGMT_1, 3, 0),
649 SND_SOC_DAPM_ADC("ADCR", "Capture", WM8962_PWR_MGMT_1, 2, 0),
651 SND_SOC_DAPM_MUX("STL", SND_SOC_NOPM, 0, 0, &stl_mux),
652 SND_SOC_DAPM_MUX("STR", SND_SOC_NOPM, 0, 0, &str_mux),
654 SND_SOC_DAPM_DAC("DACL", "Playback", WM8962_PWR_MGMT_2, 8, 0),
655 SND_SOC_DAPM_DAC("DACR", "Playback", WM8962_PWR_MGMT_2, 7, 0),
657 SND_SOC_DAPM_PGA("Left Bypass", SND_SOC_NOPM, 0, 0, NULL, 0),
658 SND_SOC_DAPM_PGA("Right Bypass", SND_SOC_NOPM, 0, 0, NULL, 0),
660 SND_SOC_DAPM_MIXER("HPMIXL", WM8962_MIXER_ENABLES, 3, 0,
661 hpmixl, ARRAY_SIZE(hpmixl)),
662 SND_SOC_DAPM_MIXER("HPMIXR", WM8962_MIXER_ENABLES, 2, 0,
663 hpmixr, ARRAY_SIZE(hpmixr)),
665 SND_SOC_DAPM_MUX_E("HPOUTL PGA", WM8962_PWR_MGMT_2, 6, 0, &hpoutl_mux,
666 out_pga_event, SND_SOC_DAPM_POST_PMU),
667 SND_SOC_DAPM_MUX_E("HPOUTR PGA", WM8962_PWR_MGMT_2, 5, 0, &hpoutr_mux,
668 out_pga_event, SND_SOC_DAPM_POST_PMU),
670 SND_SOC_DAPM_PGA_E("HPOUT", SND_SOC_NOPM, 0, 0, NULL, 0, hp_event,
671 SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
673 SND_SOC_DAPM_OUTPUT("HPOUTL"),
674 SND_SOC_DAPM_OUTPUT("HPOUTR"),
677 static const struct snd_soc_dapm_widget wm8962_dapm_spk_mono_widgets[] = {
678 SND_SOC_DAPM_MIXER("Speaker Mixer", WM8962_MIXER_ENABLES, 1, 0,
679 spkmixl, ARRAY_SIZE(spkmixl)),
680 SND_SOC_DAPM_MUX_E("Speaker PGA", WM8962_PWR_MGMT_2, 4, 0, &spkoutl_mux,
681 out_pga_event, SND_SOC_DAPM_POST_PMU),
682 SND_SOC_DAPM_PGA("Speaker Output", WM8962_CLASS_D_CONTROL_1, 7, 0, NULL, 0),
683 SND_SOC_DAPM_OUTPUT("SPKOUT"),
686 static const struct snd_soc_dapm_widget wm8962_dapm_spk_stereo_widgets[] = {
687 SND_SOC_DAPM_MIXER("SPKOUTL Mixer", WM8962_MIXER_ENABLES, 1, 0,
688 spkmixl, ARRAY_SIZE(spkmixl)),
689 SND_SOC_DAPM_MIXER("SPKOUTR Mixer", WM8962_MIXER_ENABLES, 0, 0,
690 spkmixr, ARRAY_SIZE(spkmixr)),
692 SND_SOC_DAPM_MUX_E("SPKOUTL PGA", WM8962_PWR_MGMT_2, 4, 0, &spkoutl_mux,
693 out_pga_event, SND_SOC_DAPM_POST_PMU),
694 SND_SOC_DAPM_MUX_E("SPKOUTR PGA", WM8962_PWR_MGMT_2, 3, 0, &spkoutr_mux,
695 out_pga_event, SND_SOC_DAPM_POST_PMU),
697 SND_SOC_DAPM_PGA("SPKOUTR Output", WM8962_CLASS_D_CONTROL_1, 7, 0, NULL, 0),
698 SND_SOC_DAPM_PGA("SPKOUTL Output", WM8962_CLASS_D_CONTROL_1, 6, 0, NULL, 0),
700 SND_SOC_DAPM_OUTPUT("SPKOUTL"),
701 SND_SOC_DAPM_OUTPUT("SPKOUTR"),
704 static const struct snd_soc_dapm_route wm8962_intercon[] = {
705 { "INPGAL", "IN1L Switch", "IN1L" },
706 { "INPGAL", "IN2L Switch", "IN2L" },
707 { "INPGAL", "IN3L Switch", "IN3L" },
708 { "INPGAL", "IN4L Switch", "IN4L" },
710 { "INPGAR", "IN1R Switch", "IN1R" },
711 { "INPGAR", "IN2R Switch", "IN2R" },
712 { "INPGAR", "IN3R Switch", "IN3R" },
713 { "INPGAR", "IN4R Switch", "IN4R" },
715 { "MIXINL", "IN2L Switch", "IN2L" },
716 { "MIXINL", "IN3L Switch", "IN3L" },
717 { "MIXINL", "PGA Switch", "INPGAL" },
719 { "MIXINR", "IN2R Switch", "IN2R" },
720 { "MIXINR", "IN3R Switch", "IN3R" },
721 { "MIXINR", "PGA Switch", "INPGAR" },
723 { "ADCL", NULL, "SYSCLK" },
724 { "ADCL", NULL, "TOCLK" },
725 { "ADCL", NULL, "MIXINL" },
727 { "ADCR", NULL, "SYSCLK" },
728 { "ADCR", NULL, "TOCLK" },
729 { "ADCR", NULL, "MIXINR" },
731 { "STL", "Left", "ADCL" },
732 { "STL", "Right", "ADCR" },
734 { "STR", "Left", "ADCL" },
735 { "STR", "Right", "ADCR" },
737 { "DACL", NULL, "SYSCLK" },
738 { "DACL", NULL, "TOCLK" },
739 { "DACL", NULL, "Beep" },
740 { "DACL", NULL, "STL" },
742 { "DACR", NULL, "SYSCLK" },
743 { "DACR", NULL, "TOCLK" },
744 { "DACR", NULL, "Beep" },
745 { "DACR", NULL, "STR" },
747 { "HPMIXL", "IN4L Switch", "IN4L" },
748 { "HPMIXL", "IN4R Switch", "IN4R" },
749 { "HPMIXL", "DACL Switch", "DACL" },
750 { "HPMIXL", "DACR Switch", "DACR" },
751 { "HPMIXL", "MIXINL Switch", "MIXINL" },
752 { "HPMIXL", "MIXINR Switch", "MIXINR" },
754 { "HPMIXR", "IN4L Switch", "IN4L" },
755 { "HPMIXR", "IN4R Switch", "IN4R" },
756 { "HPMIXR", "DACL Switch", "DACL" },
757 { "HPMIXR", "DACR Switch", "DACR" },
758 { "HPMIXR", "MIXINL Switch", "MIXINL" },
759 { "HPMIXR", "MIXINR Switch", "MIXINR" },
761 { "Left Bypass", NULL, "HPMIXL" },
762 { "Left Bypass", NULL, "Class G" },
764 { "Right Bypass", NULL, "HPMIXR" },
765 { "Right Bypass", NULL, "Class G" },
767 { "HPOUTL PGA", "Mixer", "Left Bypass" },
768 { "HPOUTL PGA", "DAC", "DACL" },
770 { "HPOUTR PGA", "Mixer", "Right Bypass" },
771 { "HPOUTR PGA", "DAC", "DACR" },
773 { "HPOUT", NULL, "HPOUTL PGA" },
774 { "HPOUT", NULL, "HPOUTR PGA" },
775 { "HPOUT", NULL, "Charge Pump" },
776 { "HPOUT", NULL, "SYSCLK" },
777 { "HPOUT", NULL, "TOCLK" },
779 { "HPOUTL", NULL, "HPOUT" },
780 { "HPOUTR", NULL, "HPOUT" },
783 static const struct snd_soc_dapm_route wm8962_spk_mono_intercon[] = {
784 { "Speaker Mixer", "IN4L Switch", "IN4L" },
785 { "Speaker Mixer", "IN4R Switch", "IN4R" },
786 { "Speaker Mixer", "DACL Switch", "DACL" },
787 { "Speaker Mixer", "DACR Switch", "DACR" },
788 { "Speaker Mixer", "MIXINL Switch", "MIXINL" },
789 { "Speaker Mixer", "MIXINR Switch", "MIXINR" },
791 { "Speaker PGA", "Mixer", "Speaker Mixer" },
792 { "Speaker PGA", "DAC", "DACL" },
794 { "Speaker Output", NULL, "Speaker PGA" },
795 { "Speaker Output", NULL, "SYSCLK" },
796 { "Speaker Output", NULL, "TOCLK" },
798 { "SPKOUT", NULL, "Speaker Output" },
801 static const struct snd_soc_dapm_route wm8962_spk_stereo_intercon[] = {
802 { "SPKOUTL Mixer", "IN4L Switch", "IN4L" },
803 { "SPKOUTL Mixer", "IN4R Switch", "IN4R" },
804 { "SPKOUTL Mixer", "DACL Switch", "DACL" },
805 { "SPKOUTL Mixer", "DACR Switch", "DACR" },
806 { "SPKOUTL Mixer", "MIXINL Switch", "MIXINL" },
807 { "SPKOUTL Mixer", "MIXINR Switch", "MIXINR" },
809 { "SPKOUTR Mixer", "IN4L Switch", "IN4L" },
810 { "SPKOUTR Mixer", "IN4R Switch", "IN4R" },
811 { "SPKOUTR Mixer", "DACL Switch", "DACL" },
812 { "SPKOUTR Mixer", "DACR Switch", "DACR" },
813 { "SPKOUTR Mixer", "MIXINL Switch", "MIXINL" },
814 { "SPKOUTR Mixer", "MIXINR Switch", "MIXINR" },
816 { "SPKOUTL PGA", "Mixer", "SPKOUTL Mixer" },
817 { "SPKOUTL PGA", "DAC", "DACL" },
819 { "SPKOUTR PGA", "Mixer", "SPKOUTR Mixer" },
820 { "SPKOUTR PGA", "DAC", "DACR" },
822 { "SPKOUTL Output", NULL, "SPKOUTL PGA" },
823 { "SPKOUTL Output", NULL, "SYSCLK" },
824 { "SPKOUTL Output", NULL, "TOCLK" },
826 { "SPKOUTR Output", NULL, "SPKOUTR PGA" },
827 { "SPKOUTR Output", NULL, "SYSCLK" },
828 { "SPKOUTR Output", NULL, "TOCLK" },
830 { "SPKOUTL", NULL, "SPKOUTL Output" },
831 { "SPKOUTR", NULL, "SPKOUTR Output" },
834 static int wm8962_add_widgets(struct snd_soc_codec *codec)
836 struct wm8962_pdata *pdata = dev_get_platdata(codec->dev);
838 snd_soc_add_controls(codec, wm8962_snd_controls,
839 ARRAY_SIZE(wm8962_snd_controls));
840 if (pdata && pdata->spk_mono)
841 snd_soc_add_controls(codec, wm8962_spk_mono_controls,
842 ARRAY_SIZE(wm8962_spk_mono_controls));
844 snd_soc_add_controls(codec, wm8962_spk_stereo_controls,
845 ARRAY_SIZE(wm8962_spk_stereo_controls));
848 snd_soc_dapm_new_controls(codec, wm8962_dapm_widgets,
849 ARRAY_SIZE(wm8962_dapm_widgets));
850 if (pdata && pdata->spk_mono)
851 snd_soc_dapm_new_controls(codec, wm8962_dapm_spk_mono_widgets,
852 ARRAY_SIZE(wm8962_dapm_spk_mono_widgets));
854 snd_soc_dapm_new_controls(codec, wm8962_dapm_spk_stereo_widgets,
855 ARRAY_SIZE(wm8962_dapm_spk_stereo_widgets));
857 snd_soc_dapm_add_routes(codec, wm8962_intercon,
858 ARRAY_SIZE(wm8962_intercon));
859 if (pdata && pdata->spk_mono)
860 snd_soc_dapm_add_routes(codec, wm8962_spk_mono_intercon,
861 ARRAY_SIZE(wm8962_spk_mono_intercon));
863 snd_soc_dapm_add_routes(codec, wm8962_spk_stereo_intercon,
864 ARRAY_SIZE(wm8962_spk_stereo_intercon));
867 snd_soc_dapm_disable_pin(codec, "Beep");
872 static void wm8962_sync_cache(struct snd_soc_codec *codec)
874 struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
877 if (!codec->cache_sync)
880 dev_dbg(codec->dev, "Syncing cache\n");
882 codec->cache_only = 0;
884 /* Sync back cached values if they're different from the
887 for (i = 1; i < ARRAY_SIZE(wm8962->reg_cache); i++) {
888 if (i == WM8962_SOFTWARE_RESET)
890 if (wm8962->reg_cache[i] == wm8962_reg[i])
893 snd_soc_write(codec, i, wm8962->reg_cache[i]);
896 codec->cache_sync = 0;
899 /* -1 for reserved values */
900 static const int bclk_divs[] = {
901 1, -1, 2, 3, 4, -1, 6, 8, -1, 12, 16, 24, -1, 32, 32, 32
904 static void wm8962_configure_bclk(struct snd_soc_codec *codec)
906 struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
911 /* If the CODEC is powered on we can configure BCLK */
912 if (codec->bias_level != SND_SOC_BIAS_OFF) {
913 dev_dbg(codec->dev, "Bias is off, can't configure BCLK\n");
918 dev_dbg(codec->dev, "No BCLK rate configured\n");
922 dspclk = snd_soc_read(codec, WM8962_CLOCKING1);
924 dev_err(codec->dev, "Failed to read DSPCLK: %d\n", dspclk);
928 dspclk = (dspclk & WM8962_DSPCLK_DIV_MASK) >> WM8962_DSPCLK_DIV_SHIFT;
931 dspclk = wm8962->sysclk_rate;
934 dspclk = wm8962->sysclk_rate / 2;
937 dspclk = wm8962->sysclk_rate / 4;
940 dev_warn(codec->dev, "Unknown DSPCLK divisor read back\n");
941 dspclk = wm8962->sysclk;
944 dev_dbg(codec->dev, "DSPCLK is %dHz, BCLK %d\n", dspclk, wm8962->bclk);
946 /* We're expecting an exact match */
947 for (i = 0; i < ARRAY_SIZE(bclk_divs); i++) {
948 if (bclk_divs[i] < 0)
951 if (dspclk / bclk_divs[i] == wm8962->bclk) {
952 dev_dbg(codec->dev, "Selected BCLK_DIV %d for %dHz\n",
953 bclk_divs[i], wm8962->bclk);
958 if (i == ARRAY_SIZE(bclk_divs)) {
959 dev_err(codec->dev, "Unsupported BCLK ratio %d\n",
960 dspclk / wm8962->bclk);
964 aif2 |= wm8962->bclk / wm8962->lrclk;
965 dev_dbg(codec->dev, "Selected LRCLK divisor %d for %dHz\n",
966 wm8962->bclk / wm8962->lrclk, wm8962->lrclk);
968 snd_soc_update_bits(codec, WM8962_CLOCKING2,
969 WM8962_BCLK_DIV_MASK, clocking2);
970 snd_soc_update_bits(codec, WM8962_AUDIO_INTERFACE_2,
971 WM8962_AIF_RATE_MASK, aif2);
974 static int wm8962_set_bias_level(struct snd_soc_codec *codec,
975 enum snd_soc_bias_level level)
977 struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
980 if (level == codec->bias_level)
984 case SND_SOC_BIAS_ON:
987 case SND_SOC_BIAS_PREPARE:
989 snd_soc_update_bits(codec, WM8962_PWR_MGMT_1,
990 WM8962_VMID_SEL_MASK, 0x80);
993 case SND_SOC_BIAS_STANDBY:
994 if (codec->bias_level == SND_SOC_BIAS_OFF) {
995 ret = regulator_bulk_enable(ARRAY_SIZE(wm8962->supplies),
999 "Failed to enable supplies: %d\n",
1004 wm8962_sync_cache(codec);
1006 snd_soc_update_bits(codec, WM8962_ANTI_POP,
1007 WM8962_STARTUP_BIAS_ENA |
1008 WM8962_VMID_BUF_ENA,
1009 WM8962_STARTUP_BIAS_ENA |
1010 WM8962_VMID_BUF_ENA);
1012 /* Bias enable at 2*50k for ramp */
1013 snd_soc_update_bits(codec, WM8962_PWR_MGMT_1,
1014 WM8962_VMID_SEL_MASK |
1016 WM8962_BIAS_ENA | 0x180);
1020 snd_soc_update_bits(codec, WM8962_CLOCKING2,
1024 wm8962_configure_bclk(codec);
1028 snd_soc_update_bits(codec, WM8962_PWR_MGMT_1,
1029 WM8962_VMID_SEL_MASK, 0x100);
1032 case SND_SOC_BIAS_OFF:
1033 snd_soc_update_bits(codec, WM8962_PWR_MGMT_1,
1034 WM8962_VMID_SEL_MASK | WM8962_BIAS_ENA, 0);
1036 snd_soc_update_bits(codec, WM8962_ANTI_POP,
1037 WM8962_STARTUP_BIAS_ENA |
1038 WM8962_VMID_BUF_ENA, 0);
1040 regulator_bulk_disable(ARRAY_SIZE(wm8962->supplies),
1044 codec->bias_level = level;
1048 static const struct {
1065 static const int sysclk_rates[] = {
1066 64, 128, 192, 256, 384, 512, 768, 1024, 1408, 1536,
1069 static int wm8962_hw_params(struct snd_pcm_substream *substream,
1070 struct snd_pcm_hw_params *params,
1071 struct snd_soc_dai *dai)
1073 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1074 struct snd_soc_device *socdev = rtd->socdev;
1075 struct snd_soc_codec *codec = socdev->card->codec;
1076 struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
1077 int rate = params_rate(params);
1083 wm8962->bclk = snd_soc_params_to_bclk(params);
1084 wm8962->lrclk = params_rate(params);
1086 for (i = 0; i < ARRAY_SIZE(sr_vals); i++) {
1087 if (sr_vals[i].rate == rate) {
1088 adctl3 |= sr_vals[i].reg;
1092 if (i == ARRAY_SIZE(sr_vals)) {
1093 dev_err(codec->dev, "Unsupported rate %dHz\n", rate);
1097 if (rate % 8000 == 0)
1098 adctl3 |= WM8962_SAMPLE_RATE_INT_MODE;
1100 for (i = 0; i < ARRAY_SIZE(sysclk_rates); i++) {
1101 if (sysclk_rates[i] == wm8962->sysclk_rate / rate) {
1102 clocking4 |= i << WM8962_SYSCLK_RATE_SHIFT;
1106 if (i == ARRAY_SIZE(sysclk_rates)) {
1107 dev_err(codec->dev, "Unsupported sysclk ratio %d\n",
1108 wm8962->sysclk_rate / rate);
1112 switch (params_format(params)) {
1113 case SNDRV_PCM_FORMAT_S16_LE:
1115 case SNDRV_PCM_FORMAT_S20_3LE:
1118 case SNDRV_PCM_FORMAT_S24_LE:
1121 case SNDRV_PCM_FORMAT_S32_LE:
1128 snd_soc_update_bits(codec, WM8962_AUDIO_INTERFACE_0,
1129 WM8962_WL_MASK, aif0);
1130 snd_soc_update_bits(codec, WM8962_ADDITIONAL_CONTROL_3,
1131 WM8962_SAMPLE_RATE_INT_MODE |
1132 WM8962_SAMPLE_RATE_MASK, adctl3);
1133 snd_soc_update_bits(codec, WM8962_CLOCKING_4,
1134 WM8962_SYSCLK_RATE_MASK, clocking4);
1136 wm8962_configure_bclk(codec);
1141 static int wm8962_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
1142 unsigned int freq, int dir)
1144 struct snd_soc_codec *codec = dai->codec;
1145 struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
1149 case WM8962_SYSCLK_MCLK:
1150 wm8962->sysclk = WM8962_SYSCLK_MCLK;
1153 case WM8962_SYSCLK_FLL:
1154 wm8962->sysclk = WM8962_SYSCLK_FLL;
1155 src = 1 << WM8962_SYSCLK_SRC_SHIFT;
1156 WARN_ON(freq != wm8962->fll_fout);
1162 snd_soc_update_bits(codec, WM8962_CLOCKING2, WM8962_SYSCLK_SRC_MASK,
1165 wm8962->sysclk_rate = freq;
1170 static int wm8962_set_dai_fmt(struct snd_soc_dai *dai, unsigned int fmt)
1172 struct snd_soc_codec *codec = dai->codec;
1175 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1176 case SND_SOC_DAIFMT_DSP_A:
1177 aif0 |= WM8962_LRCLK_INV;
1178 case SND_SOC_DAIFMT_DSP_B:
1181 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1182 case SND_SOC_DAIFMT_NB_NF:
1183 case SND_SOC_DAIFMT_IB_NF:
1190 case SND_SOC_DAIFMT_RIGHT_J:
1192 case SND_SOC_DAIFMT_LEFT_J:
1195 case SND_SOC_DAIFMT_I2S:
1202 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1203 case SND_SOC_DAIFMT_NB_NF:
1205 case SND_SOC_DAIFMT_IB_NF:
1206 aif0 |= WM8962_BCLK_INV;
1208 case SND_SOC_DAIFMT_NB_IF:
1209 aif0 |= WM8962_LRCLK_INV;
1211 case SND_SOC_DAIFMT_IB_IF:
1212 aif0 |= WM8962_BCLK_INV | WM8962_LRCLK_INV;
1218 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1219 case SND_SOC_DAIFMT_CBM_CFM:
1220 aif0 |= WM8962_MSTR;
1222 case SND_SOC_DAIFMT_CBS_CFS:
1228 snd_soc_update_bits(codec, WM8962_AUDIO_INTERFACE_0,
1229 WM8962_FMT_MASK | WM8962_BCLK_INV | WM8962_MSTR |
1230 WM8962_LRCLK_INV, aif0);
1244 /* The size in bits of the FLL divide multiplied by 10
1245 * to allow rounding later */
1246 #define FIXED_FLL_SIZE ((1 << 16) * 10)
1254 { 0, 64000, 4, 16 },
1255 { 64000, 128000, 3, 8 },
1256 { 128000, 256000, 2, 4 },
1257 { 256000, 1000000, 1, 2 },
1258 { 1000000, 13500000, 0, 1 },
1261 static int fll_factors(struct _fll_div *fll_div, unsigned int Fref,
1264 unsigned int target;
1266 unsigned int fratio, gcd_fll;
1269 /* Fref must be <=13.5MHz */
1271 fll_div->fll_refclk_div = 0;
1272 while ((Fref / div) > 13500000) {
1274 fll_div->fll_refclk_div++;
1277 pr_err("Can't scale %dMHz input down to <=13.5MHz\n",
1283 pr_debug("FLL Fref=%u Fout=%u\n", Fref, Fout);
1285 /* Apply the division for our remaining calculations */
1288 /* Fvco should be 90-100MHz; don't check the upper bound */
1290 while (Fout * div < 90000000) {
1293 pr_err("Unable to find FLL_OUTDIV for Fout=%uHz\n",
1298 target = Fout * div;
1299 fll_div->fll_outdiv = div - 1;
1301 pr_debug("FLL Fvco=%dHz\n", target);
1303 /* Find an appropraite FLL_FRATIO and factor it out of the target */
1304 for (i = 0; i < ARRAY_SIZE(fll_fratios); i++) {
1305 if (fll_fratios[i].min <= Fref && Fref <= fll_fratios[i].max) {
1306 fll_div->fll_fratio = fll_fratios[i].fll_fratio;
1307 fratio = fll_fratios[i].ratio;
1311 if (i == ARRAY_SIZE(fll_fratios)) {
1312 pr_err("Unable to find FLL_FRATIO for Fref=%uHz\n", Fref);
1316 fll_div->n = target / (fratio * Fref);
1318 if (target % Fref == 0) {
1320 fll_div->lambda = 0;
1322 gcd_fll = gcd(target, fratio * Fref);
1324 fll_div->theta = (target - (fll_div->n * fratio * Fref))
1326 fll_div->lambda = (fratio * Fref) / gcd_fll;
1329 pr_debug("FLL N=%x THETA=%x LAMBDA=%x\n",
1330 fll_div->n, fll_div->theta, fll_div->lambda);
1331 pr_debug("FLL_FRATIO=%x FLL_OUTDIV=%x FLL_REFCLK_DIV=%x\n",
1332 fll_div->fll_fratio, fll_div->fll_outdiv,
1333 fll_div->fll_refclk_div);
1338 static int wm8962_set_fll(struct snd_soc_dai *dai, int fll_id, int source,
1339 unsigned int Fref, unsigned int Fout)
1341 struct snd_soc_codec *codec = dai->codec;
1342 struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
1343 struct _fll_div fll_div;
1345 int fll1 = snd_soc_read(codec, WM8962_FLL_CONTROL_1);
1348 if (source == wm8962->fll_src && Fref == wm8962->fll_fref &&
1349 Fout == wm8962->fll_fout)
1353 dev_dbg(codec->dev, "FLL disabled\n");
1355 wm8962->fll_fref = 0;
1356 wm8962->fll_fout = 0;
1358 snd_soc_update_bits(codec, WM8962_FLL_CONTROL_1,
1364 ret = fll_factors(&fll_div, Fref, Fout);
1369 case WM8962_FLL_MCLK:
1370 case WM8962_FLL_BCLK:
1371 case WM8962_FLL_OSC:
1372 fll1 |= (fll_id - 1) << WM8962_FLL_REFCLK_SRC_SHIFT;
1374 case WM8962_FLL_INT:
1375 snd_soc_update_bits(codec, WM8962_FLL_CONTROL_1,
1376 WM8962_FLL_OSC_ENA, WM8962_FLL_OSC_ENA);
1377 snd_soc_update_bits(codec, WM8962_FLL_CONTROL_5,
1378 WM8962_FLL_FRC_NCO, WM8962_FLL_FRC_NCO);
1381 dev_err(codec->dev, "Unknown FLL source %d\n", ret);
1385 if (fll_div.theta || fll_div.lambda)
1386 fll1 |= WM8962_FLL_FRAC;
1388 /* Stop the FLL while we reconfigure */
1389 snd_soc_update_bits(codec, WM8962_FLL_CONTROL_1, WM8962_FLL_ENA, 0);
1391 snd_soc_update_bits(codec, WM8962_FLL_CONTROL_2,
1392 WM8962_FLL_OUTDIV_MASK |
1393 WM8962_FLL_REFCLK_DIV_MASK,
1394 (fll_div.fll_outdiv << WM8962_FLL_OUTDIV_SHIFT) |
1395 (fll_div.fll_refclk_div));
1397 snd_soc_update_bits(codec, WM8962_FLL_CONTROL_3,
1398 WM8962_FLL_FRATIO_MASK, fll_div.fll_fratio);
1400 snd_soc_write(codec, WM8962_FLL_CONTROL_6, fll_div.theta);
1401 snd_soc_write(codec, WM8962_FLL_CONTROL_7, fll_div.lambda);
1402 snd_soc_write(codec, WM8962_FLL_CONTROL_8, fll_div.n);
1404 snd_soc_update_bits(codec, WM8962_FLL_CONTROL_1,
1405 WM8962_FLL_FRAC | WM8962_FLL_REFCLK_SRC_MASK |
1406 WM8962_FLL_ENA, fll1);
1408 dev_dbg(codec->dev, "FLL configured for %dHz->%dHz\n", Fref, Fout);
1410 wm8962->fll_fref = Fref;
1411 wm8962->fll_fout = Fout;
1412 wm8962->fll_src = source;
1417 static int wm8962_mute(struct snd_soc_dai *dai, int mute)
1419 struct snd_soc_codec *codec = dai->codec;
1423 val = WM8962_DAC_MUTE;
1427 return snd_soc_update_bits(codec, WM8962_ADC_DAC_CONTROL_1,
1428 WM8962_DAC_MUTE, val);
1431 #define WM8962_RATES SNDRV_PCM_RATE_8000_96000
1433 #define WM8962_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1434 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
1436 static struct snd_soc_dai_ops wm8962_dai_ops = {
1437 .hw_params = wm8962_hw_params,
1438 .set_sysclk = wm8962_set_dai_sysclk,
1439 .set_fmt = wm8962_set_dai_fmt,
1440 .set_pll = wm8962_set_fll,
1441 .digital_mute = wm8962_mute,
1444 struct snd_soc_dai wm8962_dai = {
1447 .stream_name = "Playback",
1450 .rates = WM8962_RATES,
1451 .formats = WM8962_FORMATS,
1454 .stream_name = "Capture",
1457 .rates = WM8962_RATES,
1458 .formats = WM8962_FORMATS,
1460 .ops = &wm8962_dai_ops,
1461 .symmetric_rates = 1,
1463 EXPORT_SYMBOL_GPL(wm8962_dai);
1465 static int wm8962_probe(struct platform_device *pdev)
1467 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1468 struct snd_soc_codec *codec;
1471 if (wm8962_codec == NULL) {
1472 dev_err(&pdev->dev, "Codec device not registered\n");
1476 socdev->card->codec = wm8962_codec;
1477 codec = wm8962_codec;
1480 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
1482 dev_err(codec->dev, "failed to create pcms: %d\n", ret);
1486 wm8962_add_widgets(codec);
1494 static int wm8962_remove(struct platform_device *pdev)
1496 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1498 snd_soc_free_pcms(socdev);
1499 snd_soc_dapm_free(socdev);
1505 static int wm8962_resume(struct platform_device *pdev)
1507 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1508 struct snd_soc_codec *codec = socdev->card->codec;
1509 struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
1510 u16 *reg_cache = codec->reg_cache;
1513 /* Restore the registers */
1514 for (i = 1; i < ARRAY_SIZE(wm8962->reg_cache); i++) {
1516 case WM8962_SOFTWARE_RESET:
1522 if (reg_cache[i] != wm8962_reg[i])
1523 snd_soc_write(codec, i, reg_cache[i]);
1529 #define wm8962_resume NULL
1532 struct snd_soc_codec_device soc_codec_dev_wm8962 = {
1533 .probe = wm8962_probe,
1534 .remove = wm8962_remove,
1535 .resume = wm8962_resume,
1537 EXPORT_SYMBOL_GPL(soc_codec_dev_wm8962);
1539 #if defined(CONFIG_INPUT) || defined(CONFIG_INPUT_MODULE)
1540 static int beep_rates[] = {
1541 500, 1000, 2000, 4000,
1544 static void wm8962_beep_work(struct work_struct *work)
1546 struct wm8962_priv *wm8962 =
1547 container_of(work, struct wm8962_priv, beep_work);
1548 struct snd_soc_codec *codec = &wm8962->codec;
1553 if (wm8962->beep_rate) {
1554 for (i = 0; i < ARRAY_SIZE(beep_rates); i++) {
1555 if (abs(wm8962->beep_rate - beep_rates[i]) <
1556 abs(wm8962->beep_rate - beep_rates[best]))
1560 dev_dbg(codec->dev, "Set beep rate %dHz for requested %dHz\n",
1561 beep_rates[best], wm8962->beep_rate);
1563 reg = WM8962_BEEP_ENA | (best << WM8962_BEEP_RATE_SHIFT);
1565 snd_soc_dapm_enable_pin(codec, "Beep");
1567 dev_dbg(codec->dev, "Disabling beep\n");
1568 snd_soc_dapm_disable_pin(codec, "Beep");
1571 snd_soc_update_bits(codec, WM8962_BEEP_GENERATOR_1,
1572 WM8962_BEEP_ENA | WM8962_BEEP_RATE_MASK, reg);
1574 snd_soc_dapm_sync(codec);
1577 /* For usability define a way of injecting beep events for the device -
1578 * many systems will not have a keyboard.
1580 static int wm8962_beep_event(struct input_dev *dev, unsigned int type,
1581 unsigned int code, int hz)
1583 struct snd_soc_codec *codec = input_get_drvdata(dev);
1584 struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
1586 dev_dbg(codec->dev, "Beep event %x %x\n", code, hz);
1598 /* Kick the beep from a workqueue */
1599 wm8962->beep_rate = hz;
1600 schedule_work(&wm8962->beep_work);
1604 static ssize_t wm8962_beep_set(struct device *dev,
1605 struct device_attribute *attr,
1606 const char *buf, size_t count)
1608 struct wm8962_priv *wm8962 = dev_get_drvdata(dev);
1611 strict_strtol(buf, 10, &time);
1613 input_event(wm8962->beep, EV_SND, SND_TONE, time);
1618 static DEVICE_ATTR(beep, 0200, NULL, wm8962_beep_set);
1620 static void wm8962_init_beep(struct snd_soc_codec *codec)
1622 struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
1625 wm8962->beep = input_allocate_device();
1626 if (!wm8962->beep) {
1627 dev_err(codec->dev, "Failed to allocate beep device\n");
1631 INIT_WORK(&wm8962->beep_work, wm8962_beep_work);
1632 wm8962->beep_rate = 0;
1634 wm8962->beep->name = "WM8962 Beep Generator";
1635 wm8962->beep->phys = dev_name(codec->dev);
1636 wm8962->beep->id.bustype = BUS_I2C;
1638 wm8962->beep->evbit[0] = BIT_MASK(EV_SND);
1639 wm8962->beep->sndbit[0] = BIT_MASK(SND_BELL) | BIT_MASK(SND_TONE);
1640 wm8962->beep->event = wm8962_beep_event;
1641 wm8962->beep->dev.parent = codec->dev;
1642 input_set_drvdata(wm8962->beep, codec);
1644 ret = input_register_device(wm8962->beep);
1646 input_free_device(wm8962->beep);
1647 wm8962->beep = NULL;
1648 dev_err(codec->dev, "Failed to register beep device\n");
1651 ret = device_create_file(codec->dev, &dev_attr_beep);
1653 dev_err(codec->dev, "Failed to create keyclick file: %d\n",
1658 static void wm8962_free_beep(struct snd_soc_codec *codec)
1660 struct wm8962_priv *wm8962 = snd_soc_codec_get_drvdata(codec);
1662 device_remove_file(codec->dev, &dev_attr_beep);
1663 input_unregister_device(wm8962->beep);
1664 cancel_work_sync(&wm8962->beep_work);
1665 wm8962->beep = NULL;
1667 snd_soc_update_bits(codec, WM8962_BEEP_GENERATOR_1, WM8962_BEEP_ENA,0);
1670 static void wm8962_init_beep(struct snd_soc_codec *codec)
1674 static void wm8962_free_beep(struct snd_soc_codec *codec)
1679 static int wm8962_register(struct wm8962_priv *wm8962,
1680 enum snd_soc_control_type control)
1683 struct snd_soc_codec *codec = &wm8962->codec;
1684 struct wm8962_pdata *pdata = dev_get_platdata(codec->dev);
1688 dev_err(codec->dev, "Another WM8962 is registered\n");
1692 mutex_init(&codec->mutex);
1693 INIT_LIST_HEAD(&codec->dapm_widgets);
1694 INIT_LIST_HEAD(&codec->dapm_paths);
1696 snd_soc_codec_set_drvdata(codec, wm8962);
1697 codec->name = "WM8962";
1698 codec->owner = THIS_MODULE;
1699 codec->bias_level = SND_SOC_BIAS_OFF;
1700 codec->set_bias_level = wm8962_set_bias_level;
1701 codec->dai = &wm8962_dai;
1703 codec->reg_cache_size = WM8962_MAX_REGISTER;
1704 codec->reg_cache = &wm8962->reg_cache;
1705 codec->volatile_register = wm8962_volatile_register;
1706 codec->cache_sync = 1;
1707 codec->idle_bias_off = 1;
1708 codec->readable_register = wm8962_readable;
1710 memcpy(codec->reg_cache, wm8962_reg, sizeof(wm8962_reg));
1712 ret = snd_soc_codec_set_cache_io(codec, 16, 16, control);
1714 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
1718 for (i = 0; i < ARRAY_SIZE(wm8962->supplies); i++)
1719 wm8962->supplies[i].supply = wm8962_supply_names[i];
1721 ret = regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8962->supplies),
1724 dev_err(codec->dev, "Failed to request supplies: %d\n", ret);
1728 wm8962->disable_nb[0].notifier_call = wm8962_regulator_event_0;
1729 wm8962->disable_nb[1].notifier_call = wm8962_regulator_event_1;
1730 wm8962->disable_nb[2].notifier_call = wm8962_regulator_event_2;
1731 wm8962->disable_nb[3].notifier_call = wm8962_regulator_event_3;
1732 wm8962->disable_nb[4].notifier_call = wm8962_regulator_event_4;
1733 wm8962->disable_nb[5].notifier_call = wm8962_regulator_event_5;
1734 wm8962->disable_nb[6].notifier_call = wm8962_regulator_event_6;
1735 wm8962->disable_nb[7].notifier_call = wm8962_regulator_event_7;
1737 /* This should really be moved into the regulator core */
1738 for (i = 0; i < ARRAY_SIZE(wm8962->supplies); i++) {
1739 ret = regulator_register_notifier(wm8962->supplies[i].consumer,
1740 &wm8962->disable_nb[i]);
1743 "Failed to register regulator notifier: %d\n",
1748 ret = regulator_bulk_enable(ARRAY_SIZE(wm8962->supplies),
1751 dev_err(codec->dev, "Failed to enable supplies: %d\n", ret);
1755 ret = snd_soc_read(codec, WM8962_SOFTWARE_RESET);
1757 dev_err(codec->dev, "Failed to read ID register\n");
1760 if (ret != wm8962_reg[WM8962_SOFTWARE_RESET]) {
1761 dev_err(codec->dev, "Device is not a WM8962, ID %x != %x\n",
1762 ret, wm8962_reg[WM8962_SOFTWARE_RESET]);
1767 ret = snd_soc_read(codec, WM8962_RIGHT_INPUT_VOLUME);
1769 dev_err(codec->dev, "Failed to read device revision: %d\n",
1774 dev_info(codec->dev, "customer id %x revision %c\n",
1775 (ret & WM8962_CUST_ID_MASK) >> WM8962_CUST_ID_SHIFT,
1776 ((ret & WM8962_CHIP_REV_MASK) >> WM8962_CHIP_REV_SHIFT)
1779 ret = wm8962_reset(codec);
1781 dev_err(codec->dev, "Failed to issue reset\n");
1785 /* SYSCLK defaults to on; make sure it is off so we can safely
1786 * write to registers if the device is declocked.
1788 snd_soc_update_bits(codec, WM8962_CLOCKING2, WM8962_SYSCLK_ENA, 0);
1790 regulator_bulk_disable(ARRAY_SIZE(wm8962->supplies), wm8962->supplies);
1793 /* Apply static configuration for GPIOs */
1794 for (i = 0; i < ARRAY_SIZE(pdata->gpio_init); i++)
1795 if (pdata->gpio_init[i])
1796 snd_soc_write(codec, 0x200 + i,
1797 pdata->gpio_init[i] & 0xffff);
1799 /* Put the speakers into mono mode? */
1800 if (pdata->spk_mono)
1801 wm8962->reg_cache[WM8962_CLASS_D_CONTROL_2]
1805 /* Latch volume update bits */
1806 wm8962->reg_cache[WM8962_LEFT_INPUT_VOLUME] |= WM8962_IN_VU;
1807 wm8962->reg_cache[WM8962_RIGHT_INPUT_VOLUME] |= WM8962_IN_VU;
1808 wm8962->reg_cache[WM8962_LEFT_ADC_VOLUME] |= WM8962_ADC_VU;
1809 wm8962->reg_cache[WM8962_RIGHT_ADC_VOLUME] |= WM8962_ADC_VU;
1810 wm8962->reg_cache[WM8962_LEFT_DAC_VOLUME] |= WM8962_DAC_VU;
1811 wm8962->reg_cache[WM8962_RIGHT_DAC_VOLUME] |= WM8962_DAC_VU;
1812 wm8962->reg_cache[WM8962_SPKOUTL_VOLUME] |= WM8962_SPKOUT_VU;
1813 wm8962->reg_cache[WM8962_SPKOUTR_VOLUME] |= WM8962_SPKOUT_VU;
1814 wm8962->reg_cache[WM8962_HPOUTL_VOLUME] |= WM8962_HPOUT_VU;
1815 wm8962->reg_cache[WM8962_HPOUTR_VOLUME] |= WM8962_HPOUT_VU;
1817 wm8962_dai.dev = codec->dev;
1819 wm8962_codec = codec;
1821 ret = snd_soc_register_codec(codec);
1823 dev_err(codec->dev, "Failed to register codec: %d\n", ret);
1827 ret = snd_soc_register_dai(&wm8962_dai);
1829 dev_err(codec->dev, "Failed to register DAI: %d\n", ret);
1830 snd_soc_unregister_codec(codec);
1834 wm8962_init_beep(codec);
1839 regulator_bulk_disable(ARRAY_SIZE(wm8962->supplies), wm8962->supplies);
1841 regulator_bulk_free(ARRAY_SIZE(wm8962->supplies), wm8962->supplies);
1847 static void wm8962_unregister(struct wm8962_priv *wm8962)
1851 wm8962_free_beep(&wm8962->codec);
1852 wm8962_set_bias_level(&wm8962->codec, SND_SOC_BIAS_OFF);
1853 for (i = 0; i < ARRAY_SIZE(wm8962->supplies); i++)
1854 regulator_unregister_notifier(wm8962->supplies[i].consumer,
1855 &wm8962->disable_nb[i]);
1856 regulator_bulk_free(ARRAY_SIZE(wm8962->supplies), wm8962->supplies);
1857 snd_soc_unregister_dai(&wm8962_dai);
1858 snd_soc_unregister_codec(&wm8962->codec);
1860 wm8962_codec = NULL;
1863 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1864 static __devinit int wm8962_i2c_probe(struct i2c_client *i2c,
1865 const struct i2c_device_id *id)
1867 struct wm8962_priv *wm8962;
1868 struct snd_soc_codec *codec;
1870 wm8962 = kzalloc(sizeof(struct wm8962_priv), GFP_KERNEL);
1874 codec = &wm8962->codec;
1875 codec->hw_write = (hw_write_t)i2c_master_send;
1877 i2c_set_clientdata(i2c, wm8962);
1878 codec->control_data = i2c;
1880 codec->dev = &i2c->dev;
1882 return wm8962_register(wm8962, SND_SOC_I2C);
1885 static __devexit int wm8962_i2c_remove(struct i2c_client *client)
1887 struct wm8962_priv *wm8962 = i2c_get_clientdata(client);
1888 wm8962_unregister(wm8962);
1892 static const struct i2c_device_id wm8962_i2c_id[] = {
1896 MODULE_DEVICE_TABLE(i2c, wm8962_i2c_id);
1898 static struct i2c_driver wm8962_i2c_driver = {
1901 .owner = THIS_MODULE,
1903 .probe = wm8962_i2c_probe,
1904 .remove = __devexit_p(wm8962_i2c_remove),
1905 .id_table = wm8962_i2c_id,
1909 static int __init wm8962_modinit(void)
1912 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1913 ret = i2c_add_driver(&wm8962_i2c_driver);
1915 printk(KERN_ERR "Failed to register WM8962 I2C driver: %d\n",
1921 module_init(wm8962_modinit);
1923 static void __exit wm8962_exit(void)
1925 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1926 i2c_del_driver(&wm8962_i2c_driver);
1929 module_exit(wm8962_exit);
1931 MODULE_DESCRIPTION("ASoC WM8962 driver");
1932 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
1933 MODULE_LICENSE("GPL");