2 * wm8960.c -- WM8960 ALSA SoC Audio driver
4 * Copyright 2007-11 Wolfson Microelectronics, plc
6 * Author: Liam Girdwood
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
13 #include <linux/module.h>
14 #include <linux/moduleparam.h>
15 #include <linux/init.h>
16 #include <linux/delay.h>
18 #include <linux/clk.h>
19 #include <linux/i2c.h>
20 #include <linux/slab.h>
21 #include <sound/core.h>
22 #include <sound/pcm.h>
23 #include <sound/pcm_params.h>
24 #include <sound/soc.h>
25 #include <sound/initval.h>
26 #include <sound/tlv.h>
27 #include <sound/wm8960.h>
32 #define WM8960_VMID_MASK 0x180
33 #define WM8960_VREF 0x40
36 #define WM8960_PWR2_LOUT1 0x40
37 #define WM8960_PWR2_ROUT1 0x20
38 #define WM8960_PWR2_OUT3 0x02
40 /* R28 - Anti-pop 1 */
41 #define WM8960_POBCTRL 0x80
42 #define WM8960_BUFDCOPEN 0x10
43 #define WM8960_BUFIOEN 0x08
44 #define WM8960_SOFT_ST 0x04
45 #define WM8960_HPSTBY 0x01
47 /* R29 - Anti-pop 2 */
48 #define WM8960_DISOP 0x40
49 #define WM8960_DRES_MASK 0x30
51 static bool is_pll_freq_available(unsigned int source, unsigned int target);
52 static int wm8960_set_pll(struct snd_soc_codec *codec,
53 unsigned int freq_in, unsigned int freq_out);
55 * wm8960 register cache
56 * We can't read the WM8960 register space when we are
57 * using 2 wire for device control, so we cache them instead.
59 static const struct reg_default wm8960_reg_defaults[] = {
113 static bool wm8960_volatile(struct device *dev, unsigned int reg)
125 struct regmap *regmap;
126 int (*set_bias_level)(struct snd_soc_codec *,
127 enum snd_soc_bias_level level);
128 struct snd_soc_dapm_widget *lout1;
129 struct snd_soc_dapm_widget *rout1;
130 struct snd_soc_dapm_widget *out3;
137 bool is_stream_in_use[2];
138 struct wm8960_data pdata;
141 #define wm8960_reset(c) regmap_write(c, WM8960_RESET, 0)
143 /* enumerated controls */
144 static const char *wm8960_polarity[] = {"No Inversion", "Left Inverted",
145 "Right Inverted", "Stereo Inversion"};
146 static const char *wm8960_3d_upper_cutoff[] = {"High", "Low"};
147 static const char *wm8960_3d_lower_cutoff[] = {"Low", "High"};
148 static const char *wm8960_alcfunc[] = {"Off", "Right", "Left", "Stereo"};
149 static const char *wm8960_alcmode[] = {"ALC", "Limiter"};
150 static const char *wm8960_adc_data_output_sel[] = {
151 "Left Data = Left ADC; Right Data = Right ADC",
152 "Left Data = Left ADC; Right Data = Left ADC",
153 "Left Data = Right ADC; Right Data = Right ADC",
154 "Left Data = Right ADC; Right Data = Left ADC",
156 static const char *wm8960_dmonomix[] = {"Stereo", "Mono"};
158 static const struct soc_enum wm8960_enum[] = {
159 SOC_ENUM_SINGLE(WM8960_DACCTL1, 5, 4, wm8960_polarity),
160 SOC_ENUM_SINGLE(WM8960_DACCTL2, 5, 4, wm8960_polarity),
161 SOC_ENUM_SINGLE(WM8960_3D, 6, 2, wm8960_3d_upper_cutoff),
162 SOC_ENUM_SINGLE(WM8960_3D, 5, 2, wm8960_3d_lower_cutoff),
163 SOC_ENUM_SINGLE(WM8960_ALC1, 7, 4, wm8960_alcfunc),
164 SOC_ENUM_SINGLE(WM8960_ALC3, 8, 2, wm8960_alcmode),
165 SOC_ENUM_SINGLE(WM8960_ADDCTL1, 2, 4, wm8960_adc_data_output_sel),
166 SOC_ENUM_SINGLE(WM8960_ADDCTL1, 4, 2, wm8960_dmonomix),
169 static const int deemph_settings[] = { 0, 32000, 44100, 48000 };
171 static int wm8960_set_deemph(struct snd_soc_codec *codec)
173 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
176 /* If we're using deemphasis select the nearest available sample
179 if (wm8960->deemph) {
181 for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) {
182 if (abs(deemph_settings[i] - wm8960->lrclk) <
183 abs(deemph_settings[best] - wm8960->lrclk))
192 dev_dbg(codec->dev, "Set deemphasis %d\n", val);
194 return snd_soc_update_bits(codec, WM8960_DACCTL1,
198 static int wm8960_get_deemph(struct snd_kcontrol *kcontrol,
199 struct snd_ctl_elem_value *ucontrol)
201 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
202 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
204 ucontrol->value.integer.value[0] = wm8960->deemph;
208 static int wm8960_put_deemph(struct snd_kcontrol *kcontrol,
209 struct snd_ctl_elem_value *ucontrol)
211 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
212 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
213 unsigned int deemph = ucontrol->value.integer.value[0];
218 wm8960->deemph = deemph;
220 return wm8960_set_deemph(codec);
223 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1);
224 static const DECLARE_TLV_DB_SCALE(inpga_tlv, -1725, 75, 0);
225 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
226 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -2100, 300, 0);
227 static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
228 static const DECLARE_TLV_DB_SCALE(lineinboost_tlv, -1500, 300, 1);
229 static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(micboost_tlv,
230 0, 1, TLV_DB_SCALE_ITEM(0, 1300, 0),
231 2, 3, TLV_DB_SCALE_ITEM(2000, 900, 0),
234 static const struct snd_kcontrol_new wm8960_snd_controls[] = {
235 SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL, WM8960_RINVOL,
236 0, 63, 0, inpga_tlv),
237 SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL, WM8960_RINVOL,
239 SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL, WM8960_RINVOL,
242 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT3 Volume",
243 WM8960_INBMIX1, 4, 7, 0, lineinboost_tlv),
244 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT2 Volume",
245 WM8960_INBMIX1, 1, 7, 0, lineinboost_tlv),
246 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT3 Volume",
247 WM8960_INBMIX2, 4, 7, 0, lineinboost_tlv),
248 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT2 Volume",
249 WM8960_INBMIX2, 1, 7, 0, lineinboost_tlv),
250 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT1 Volume",
251 WM8960_RINPATH, 4, 3, 0, micboost_tlv),
252 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT1 Volume",
253 WM8960_LINPATH, 4, 3, 0, micboost_tlv),
255 SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC, WM8960_RDAC,
258 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1, WM8960_ROUT1,
260 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1, WM8960_ROUT1,
263 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2, WM8960_ROUT2,
265 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2, WM8960_ROUT2,
267 SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3, 3, 5, 0),
268 SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3, 0, 5, 0),
270 SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0),
271 SOC_ENUM("ADC Polarity", wm8960_enum[0]),
272 SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0),
274 SOC_ENUM("DAC Polarity", wm8960_enum[1]),
275 SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0,
276 wm8960_get_deemph, wm8960_put_deemph),
278 SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum[2]),
279 SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum[3]),
280 SOC_SINGLE("3D Volume", WM8960_3D, 1, 15, 0),
281 SOC_SINGLE("3D Switch", WM8960_3D, 0, 1, 0),
283 SOC_ENUM("ALC Function", wm8960_enum[4]),
284 SOC_SINGLE("ALC Max Gain", WM8960_ALC1, 4, 7, 0),
285 SOC_SINGLE("ALC Target", WM8960_ALC1, 0, 15, 1),
286 SOC_SINGLE("ALC Min Gain", WM8960_ALC2, 4, 7, 0),
287 SOC_SINGLE("ALC Hold Time", WM8960_ALC2, 0, 15, 0),
288 SOC_ENUM("ALC Mode", wm8960_enum[5]),
289 SOC_SINGLE("ALC Decay", WM8960_ALC3, 4, 15, 0),
290 SOC_SINGLE("ALC Attack", WM8960_ALC3, 0, 15, 0),
292 SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG, 3, 31, 0),
293 SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG, 0, 1, 0),
295 SOC_DOUBLE_R_TLV("ADC PCM Capture Volume", WM8960_LADC, WM8960_RADC,
298 SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume",
299 WM8960_BYPASS1, 4, 7, 1, bypass_tlv),
300 SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume",
301 WM8960_LOUTMIX, 4, 7, 1, bypass_tlv),
302 SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume",
303 WM8960_BYPASS2, 4, 7, 1, bypass_tlv),
304 SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume",
305 WM8960_ROUTMIX, 4, 7, 1, bypass_tlv),
307 SOC_ENUM("ADC Data Output Select", wm8960_enum[6]),
308 SOC_ENUM("DAC Mono Mix", wm8960_enum[7]),
311 static const struct snd_kcontrol_new wm8960_lin_boost[] = {
312 SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH, 6, 1, 0),
313 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH, 7, 1, 0),
314 SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH, 8, 1, 0),
317 static const struct snd_kcontrol_new wm8960_lin[] = {
318 SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH, 3, 1, 0),
321 static const struct snd_kcontrol_new wm8960_rin_boost[] = {
322 SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH, 6, 1, 0),
323 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH, 7, 1, 0),
324 SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH, 8, 1, 0),
327 static const struct snd_kcontrol_new wm8960_rin[] = {
328 SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH, 3, 1, 0),
331 static const struct snd_kcontrol_new wm8960_loutput_mixer[] = {
332 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX, 8, 1, 0),
333 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX, 7, 1, 0),
334 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1, 7, 1, 0),
337 static const struct snd_kcontrol_new wm8960_routput_mixer[] = {
338 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX, 8, 1, 0),
339 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX, 7, 1, 0),
340 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2, 7, 1, 0),
343 static const struct snd_kcontrol_new wm8960_mono_out[] = {
344 SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1, 7, 1, 0),
345 SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2, 7, 1, 0),
348 static const struct snd_soc_dapm_widget wm8960_dapm_widgets[] = {
349 SND_SOC_DAPM_INPUT("LINPUT1"),
350 SND_SOC_DAPM_INPUT("RINPUT1"),
351 SND_SOC_DAPM_INPUT("LINPUT2"),
352 SND_SOC_DAPM_INPUT("RINPUT2"),
353 SND_SOC_DAPM_INPUT("LINPUT3"),
354 SND_SOC_DAPM_INPUT("RINPUT3"),
356 SND_SOC_DAPM_SUPPLY("MICB", WM8960_POWER1, 1, 0, NULL, 0),
358 SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1, 5, 0,
359 wm8960_lin_boost, ARRAY_SIZE(wm8960_lin_boost)),
360 SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1, 4, 0,
361 wm8960_rin_boost, ARRAY_SIZE(wm8960_rin_boost)),
363 SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3, 5, 0,
364 wm8960_lin, ARRAY_SIZE(wm8960_lin)),
365 SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3, 4, 0,
366 wm8960_rin, ARRAY_SIZE(wm8960_rin)),
368 SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER1, 3, 0),
369 SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER1, 2, 0),
371 SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2, 8, 0),
372 SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2, 7, 0),
374 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3, 3, 0,
375 &wm8960_loutput_mixer[0],
376 ARRAY_SIZE(wm8960_loutput_mixer)),
377 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3, 2, 0,
378 &wm8960_routput_mixer[0],
379 ARRAY_SIZE(wm8960_routput_mixer)),
381 SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2, 6, 0, NULL, 0),
382 SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2, 5, 0, NULL, 0),
384 SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2, 4, 0, NULL, 0),
385 SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2, 3, 0, NULL, 0),
387 SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1, 7, 0, NULL, 0),
388 SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1, 6, 0, NULL, 0),
390 SND_SOC_DAPM_OUTPUT("SPK_LP"),
391 SND_SOC_DAPM_OUTPUT("SPK_LN"),
392 SND_SOC_DAPM_OUTPUT("HP_L"),
393 SND_SOC_DAPM_OUTPUT("HP_R"),
394 SND_SOC_DAPM_OUTPUT("SPK_RP"),
395 SND_SOC_DAPM_OUTPUT("SPK_RN"),
396 SND_SOC_DAPM_OUTPUT("OUT3"),
399 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_out3[] = {
400 SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0,
402 ARRAY_SIZE(wm8960_mono_out)),
405 /* Represent OUT3 as a PGA so that it gets turned on with LOUT1/ROUT1 */
406 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_capless[] = {
407 SND_SOC_DAPM_PGA("OUT3 VMID", WM8960_POWER2, 1, 0, NULL, 0),
410 static const struct snd_soc_dapm_route audio_paths[] = {
411 { "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" },
412 { "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" },
413 { "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" },
415 { "Left Input Mixer", "Boost Switch", "Left Boost Mixer" },
416 { "Left Input Mixer", "Boost Switch", "LINPUT1" }, /* Really Boost Switch */
417 { "Left Input Mixer", NULL, "LINPUT2" },
418 { "Left Input Mixer", NULL, "LINPUT3" },
420 { "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" },
421 { "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" },
422 { "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" },
424 { "Right Input Mixer", "Boost Switch", "Right Boost Mixer" },
425 { "Right Input Mixer", "Boost Switch", "RINPUT1" }, /* Really Boost Switch */
426 { "Right Input Mixer", NULL, "RINPUT2" },
427 { "Right Input Mixer", NULL, "RINPUT3" },
429 { "Left ADC", NULL, "Left Input Mixer" },
430 { "Right ADC", NULL, "Right Input Mixer" },
432 { "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" },
433 { "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer" },
434 { "Left Output Mixer", "PCM Playback Switch", "Left DAC" },
436 { "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" },
437 { "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" },
438 { "Right Output Mixer", "PCM Playback Switch", "Right DAC" },
440 { "LOUT1 PGA", NULL, "Left Output Mixer" },
441 { "ROUT1 PGA", NULL, "Right Output Mixer" },
443 { "HP_L", NULL, "LOUT1 PGA" },
444 { "HP_R", NULL, "ROUT1 PGA" },
446 { "Left Speaker PGA", NULL, "Left Output Mixer" },
447 { "Right Speaker PGA", NULL, "Right Output Mixer" },
449 { "Left Speaker Output", NULL, "Left Speaker PGA" },
450 { "Right Speaker Output", NULL, "Right Speaker PGA" },
452 { "SPK_LN", NULL, "Left Speaker Output" },
453 { "SPK_LP", NULL, "Left Speaker Output" },
454 { "SPK_RN", NULL, "Right Speaker Output" },
455 { "SPK_RP", NULL, "Right Speaker Output" },
458 static const struct snd_soc_dapm_route audio_paths_out3[] = {
459 { "Mono Output Mixer", "Left Switch", "Left Output Mixer" },
460 { "Mono Output Mixer", "Right Switch", "Right Output Mixer" },
462 { "OUT3", NULL, "Mono Output Mixer", }
465 static const struct snd_soc_dapm_route audio_paths_capless[] = {
466 { "HP_L", NULL, "OUT3 VMID" },
467 { "HP_R", NULL, "OUT3 VMID" },
469 { "OUT3 VMID", NULL, "Left Output Mixer" },
470 { "OUT3 VMID", NULL, "Right Output Mixer" },
473 static int wm8960_add_widgets(struct snd_soc_codec *codec)
475 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
476 struct wm8960_data *pdata = &wm8960->pdata;
477 struct snd_soc_dapm_context *dapm = snd_soc_codec_get_dapm(codec);
478 struct snd_soc_dapm_widget *w;
480 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets,
481 ARRAY_SIZE(wm8960_dapm_widgets));
483 snd_soc_dapm_add_routes(dapm, audio_paths, ARRAY_SIZE(audio_paths));
485 /* In capless mode OUT3 is used to provide VMID for the
486 * headphone outputs, otherwise it is used as a mono mixer.
488 if (pdata && pdata->capless) {
489 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_capless,
490 ARRAY_SIZE(wm8960_dapm_widgets_capless));
492 snd_soc_dapm_add_routes(dapm, audio_paths_capless,
493 ARRAY_SIZE(audio_paths_capless));
495 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_out3,
496 ARRAY_SIZE(wm8960_dapm_widgets_out3));
498 snd_soc_dapm_add_routes(dapm, audio_paths_out3,
499 ARRAY_SIZE(audio_paths_out3));
502 /* We need to power up the headphone output stage out of
503 * sequence for capless mode. To save scanning the widget
504 * list each time to find the desired power state do so now
505 * and save the result.
507 list_for_each_entry(w, &codec->component.card->widgets, list) {
510 if (strcmp(w->name, "LOUT1 PGA") == 0)
512 if (strcmp(w->name, "ROUT1 PGA") == 0)
514 if (strcmp(w->name, "OUT3 VMID") == 0)
521 static int wm8960_set_dai_fmt(struct snd_soc_dai *codec_dai,
524 struct snd_soc_codec *codec = codec_dai->codec;
527 /* set master/slave audio interface */
528 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
529 case SND_SOC_DAIFMT_CBM_CFM:
532 case SND_SOC_DAIFMT_CBS_CFS:
538 /* interface format */
539 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
540 case SND_SOC_DAIFMT_I2S:
543 case SND_SOC_DAIFMT_RIGHT_J:
545 case SND_SOC_DAIFMT_LEFT_J:
548 case SND_SOC_DAIFMT_DSP_A:
551 case SND_SOC_DAIFMT_DSP_B:
558 /* clock inversion */
559 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
560 case SND_SOC_DAIFMT_NB_NF:
562 case SND_SOC_DAIFMT_IB_IF:
565 case SND_SOC_DAIFMT_IB_NF:
568 case SND_SOC_DAIFMT_NB_IF:
576 snd_soc_write(codec, WM8960_IFACE1, iface);
595 /* -1 for reserved value */
596 static const int sysclk_divs[] = { 1, -1, 2, -1 };
598 /* Multiply 256 for internal 256 div */
599 static const int dac_divs[] = { 256, 384, 512, 768, 1024, 1408, 1536 };
601 /* Multiply 10 to eliminate decimials */
602 static const int bclk_divs[] = {
603 10, 15, 20, 30, 40, 55, 60, 80, 110,
604 120, 160, 220, 240, 320, 320, 320
608 * wm8960_configure_sysclk - checks if there is a sysclk frequency available
609 * The sysclk must be chosen such that:
610 * - sysclk = MCLK / sysclk_divs
611 * - lrclk = sysclk / dac_divs
612 * - 10 * bclk = sysclk / bclk_divs
614 * If we cannot find an exact match for (sysclk, lrclk, bclk)
615 * triplet, we relax the bclk such that bclk is chosen as the
616 * closest available frequency greater than expected bclk.
618 * @wm8960_priv: wm8960 codec private data
619 * @mclk: MCLK used to derive sysclk
620 * @sysclk_idx: sysclk_divs index for found sysclk
621 * @dac_idx: dac_divs index for found lrclk
622 * @bclk_idx: bclk_divs index for found bclk
625 * -1, in case no sysclk frequency available found
626 * >=0, in case we could derive bclk and lrclk from sysclk using
627 * (@sysclk_idx, @dac_idx, @bclk_idx) dividers
630 int wm8960_configure_sysclk(struct wm8960_priv *wm8960, int mclk,
631 int *sysclk_idx, int *dac_idx, int *bclk_idx)
633 int sysclk, bclk, lrclk;
635 int diff, closest = mclk;
637 /* marker for no match */
641 lrclk = wm8960->lrclk;
643 /* check if the sysclk frequency is available. */
644 for (i = 0; i < ARRAY_SIZE(sysclk_divs); ++i) {
645 if (sysclk_divs[i] == -1)
647 sysclk = mclk / sysclk_divs[i];
648 for (j = 0; j < ARRAY_SIZE(dac_divs); ++j) {
649 if (sysclk != dac_divs[j] * lrclk)
651 for (k = 0; k < ARRAY_SIZE(bclk_divs); ++k) {
652 diff = sysclk - bclk * bclk_divs[k] / 10;
659 if (diff > 0 && closest > diff) {
666 if (k != ARRAY_SIZE(bclk_divs))
669 if (j != ARRAY_SIZE(dac_divs))
676 * wm8960_configure_pll - checks if there is a PLL out frequency available
677 * The PLL out frequency must be chosen such that:
678 * - sysclk = lrclk * dac_divs
679 * - freq_out = sysclk * sysclk_divs
680 * - 10 * sysclk = bclk * bclk_divs
682 * If we cannot find an exact match for (sysclk, lrclk, bclk)
683 * triplet, we relax the bclk such that bclk is chosen as the
684 * closest available frequency greater than expected bclk.
686 * @codec: codec structure
687 * @freq_in: input frequency used to derive freq out via PLL
688 * @sysclk_idx: sysclk_divs index for found sysclk
689 * @dac_idx: dac_divs index for found lrclk
690 * @bclk_idx: bclk_divs index for found bclk
693 * < 0, in case no PLL frequency out available was found
694 * >=0, in case we could derive bclk, lrclk, sysclk from PLL out using
695 * (@sysclk_idx, @dac_idx, @bclk_idx) dividers
698 int wm8960_configure_pll(struct snd_soc_codec *codec, int freq_in,
699 int *sysclk_idx, int *dac_idx, int *bclk_idx)
701 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
702 int sysclk, bclk, lrclk, freq_out;
703 int diff, closest, best_freq_out;
707 lrclk = wm8960->lrclk;
710 best_freq_out = -EINVAL;
711 *sysclk_idx = *dac_idx = *bclk_idx = -1;
714 * From Datasheet, the PLL performs best when f2 is between
715 * 90MHz and 100MHz, the desired sysclk output is 11.2896MHz
716 * or 12.288MHz, then sysclkdiv = 2 is the best choice.
717 * So search sysclk_divs from 2 to 1 other than from 1 to 2.
719 for (i = ARRAY_SIZE(sysclk_divs) - 1; i >= 0; --i) {
720 if (sysclk_divs[i] == -1)
722 for (j = 0; j < ARRAY_SIZE(dac_divs); ++j) {
723 sysclk = lrclk * dac_divs[j];
724 freq_out = sysclk * sysclk_divs[i];
726 for (k = 0; k < ARRAY_SIZE(bclk_divs); ++k) {
727 if (!is_pll_freq_available(freq_in, freq_out))
730 diff = sysclk - bclk * bclk_divs[k] / 10;
737 if (diff > 0 && closest > diff) {
742 best_freq_out = freq_out;
748 return best_freq_out;
750 static int wm8960_configure_clocking(struct snd_soc_codec *codec)
752 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
753 int freq_out, freq_in;
754 u16 iface1 = snd_soc_read(codec, WM8960_IFACE1);
758 if (!(iface1 & (1<<6))) {
760 "Codec is slave mode, no need to configure clock\n");
764 if (wm8960->clk_id != WM8960_SYSCLK_MCLK && !wm8960->freq_in) {
765 dev_err(codec->dev, "No MCLK configured\n");
769 freq_in = wm8960->freq_in;
771 * If it's sysclk auto mode, check if the MCLK can provide sysclk or
772 * not. If MCLK can provide sysclk, using MCLK to provide sysclk
773 * directly. Otherwise, auto select a available pll out frequency
776 if (wm8960->clk_id == WM8960_SYSCLK_AUTO) {
777 /* disable the PLL and using MCLK to provide sysclk */
778 wm8960_set_pll(codec, 0, 0);
780 } else if (wm8960->sysclk) {
781 freq_out = wm8960->sysclk;
783 dev_err(codec->dev, "No SYSCLK configured\n");
787 if (wm8960->clk_id != WM8960_SYSCLK_PLL) {
788 ret = wm8960_configure_sysclk(wm8960, freq_out, &i, &j, &k);
790 goto configure_clock;
791 } else if (wm8960->clk_id != WM8960_SYSCLK_AUTO) {
792 dev_err(codec->dev, "failed to configure clock\n");
797 freq_out = wm8960_configure_pll(codec, freq_in, &i, &j, &k);
799 dev_err(codec->dev, "failed to configure clock via PLL\n");
802 wm8960_set_pll(codec, freq_in, freq_out);
805 /* configure sysclk clock */
806 snd_soc_update_bits(codec, WM8960_CLOCK1, 3 << 1, i << 1);
808 /* configure frame clock */
809 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x7 << 3, j << 3);
810 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x7 << 6, j << 6);
812 /* configure bit clock */
813 snd_soc_update_bits(codec, WM8960_CLOCK2, 0xf, k);
818 static int wm8960_hw_params(struct snd_pcm_substream *substream,
819 struct snd_pcm_hw_params *params,
820 struct snd_soc_dai *dai)
822 struct snd_soc_codec *codec = dai->codec;
823 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
824 u16 iface = snd_soc_read(codec, WM8960_IFACE1) & 0xfff3;
825 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
828 wm8960->bclk = snd_soc_params_to_bclk(params);
829 if (params_channels(params) == 1)
833 switch (params_width(params)) {
843 /* right justify mode does not support 32 word length */
844 if ((iface & 0x3) != 0) {
849 dev_err(codec->dev, "unsupported width %d\n",
850 params_width(params));
854 wm8960->lrclk = params_rate(params);
855 /* Update filters for the new rate */
857 wm8960_set_deemph(codec);
859 for (i = 0; i < ARRAY_SIZE(alc_rates); i++)
860 if (alc_rates[i].rate == params_rate(params))
861 snd_soc_update_bits(codec,
867 snd_soc_write(codec, WM8960_IFACE1, iface);
869 wm8960->is_stream_in_use[tx] = true;
871 if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_ON &&
872 !wm8960->is_stream_in_use[!tx])
873 return wm8960_configure_clocking(codec);
878 static int wm8960_hw_free(struct snd_pcm_substream *substream,
879 struct snd_soc_dai *dai)
881 struct snd_soc_codec *codec = dai->codec;
882 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
883 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
885 wm8960->is_stream_in_use[tx] = false;
890 static int wm8960_mute(struct snd_soc_dai *dai, int mute)
892 struct snd_soc_codec *codec = dai->codec;
895 snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0x8);
897 snd_soc_update_bits(codec, WM8960_DACCTL1, 0x8, 0);
901 static int wm8960_set_bias_level_out3(struct snd_soc_codec *codec,
902 enum snd_soc_bias_level level)
904 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
905 u16 pm2 = snd_soc_read(codec, WM8960_POWER2);
909 case SND_SOC_BIAS_ON:
912 case SND_SOC_BIAS_PREPARE:
913 switch (snd_soc_codec_get_bias_level(codec)) {
914 case SND_SOC_BIAS_STANDBY:
915 if (!IS_ERR(wm8960->mclk)) {
916 ret = clk_prepare_enable(wm8960->mclk);
919 "Failed to enable MCLK: %d\n",
925 ret = wm8960_configure_clocking(codec);
929 /* Set VMID to 2x50k */
930 snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x80);
933 case SND_SOC_BIAS_ON:
935 * If it's sysclk auto mode, and the pll is enabled,
938 if (wm8960->clk_id == WM8960_SYSCLK_AUTO && (pm2 & 0x1))
939 wm8960_set_pll(codec, 0, 0);
941 if (!IS_ERR(wm8960->mclk))
942 clk_disable_unprepare(wm8960->mclk);
951 case SND_SOC_BIAS_STANDBY:
952 if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
953 regcache_sync(wm8960->regmap);
955 /* Enable anti-pop features */
956 snd_soc_write(codec, WM8960_APOP1,
957 WM8960_POBCTRL | WM8960_SOFT_ST |
958 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
960 /* Enable & ramp VMID at 2x50k */
961 snd_soc_update_bits(codec, WM8960_POWER1, 0x80, 0x80);
965 snd_soc_update_bits(codec, WM8960_POWER1, WM8960_VREF,
968 /* Disable anti-pop features */
969 snd_soc_write(codec, WM8960_APOP1, WM8960_BUFIOEN);
972 /* Set VMID to 2x250k */
973 snd_soc_update_bits(codec, WM8960_POWER1, 0x180, 0x100);
976 case SND_SOC_BIAS_OFF:
977 /* Enable anti-pop features */
978 snd_soc_write(codec, WM8960_APOP1,
979 WM8960_POBCTRL | WM8960_SOFT_ST |
980 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
982 /* Disable VMID and VREF, let them discharge */
983 snd_soc_write(codec, WM8960_POWER1, 0);
991 static int wm8960_set_bias_level_capless(struct snd_soc_codec *codec,
992 enum snd_soc_bias_level level)
994 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
995 u16 pm2 = snd_soc_read(codec, WM8960_POWER2);
999 case SND_SOC_BIAS_ON:
1002 case SND_SOC_BIAS_PREPARE:
1003 switch (snd_soc_codec_get_bias_level(codec)) {
1004 case SND_SOC_BIAS_STANDBY:
1005 /* Enable anti pop mode */
1006 snd_soc_update_bits(codec, WM8960_APOP1,
1007 WM8960_POBCTRL | WM8960_SOFT_ST |
1009 WM8960_POBCTRL | WM8960_SOFT_ST |
1012 /* Enable LOUT1, ROUT1 and OUT3 if they're enabled */
1014 if (wm8960->lout1 && wm8960->lout1->power)
1015 reg |= WM8960_PWR2_LOUT1;
1016 if (wm8960->rout1 && wm8960->rout1->power)
1017 reg |= WM8960_PWR2_ROUT1;
1018 if (wm8960->out3 && wm8960->out3->power)
1019 reg |= WM8960_PWR2_OUT3;
1020 snd_soc_update_bits(codec, WM8960_POWER2,
1023 WM8960_PWR2_OUT3, reg);
1025 /* Enable VMID at 2*50k */
1026 snd_soc_update_bits(codec, WM8960_POWER1,
1027 WM8960_VMID_MASK, 0x80);
1033 snd_soc_update_bits(codec, WM8960_POWER1,
1034 WM8960_VREF, WM8960_VREF);
1038 if (!IS_ERR(wm8960->mclk)) {
1039 ret = clk_prepare_enable(wm8960->mclk);
1042 "Failed to enable MCLK: %d\n",
1048 ret = wm8960_configure_clocking(codec);
1054 case SND_SOC_BIAS_ON:
1056 * If it's sysclk auto mode, and the pll is enabled,
1059 if (wm8960->clk_id == WM8960_SYSCLK_AUTO && (pm2 & 0x1))
1060 wm8960_set_pll(codec, 0, 0);
1062 if (!IS_ERR(wm8960->mclk))
1063 clk_disable_unprepare(wm8960->mclk);
1065 /* Enable anti-pop mode */
1066 snd_soc_update_bits(codec, WM8960_APOP1,
1067 WM8960_POBCTRL | WM8960_SOFT_ST |
1069 WM8960_POBCTRL | WM8960_SOFT_ST |
1072 /* Disable VMID and VREF */
1073 snd_soc_update_bits(codec, WM8960_POWER1,
1074 WM8960_VREF | WM8960_VMID_MASK, 0);
1077 case SND_SOC_BIAS_OFF:
1078 regcache_sync(wm8960->regmap);
1085 case SND_SOC_BIAS_STANDBY:
1086 switch (snd_soc_codec_get_bias_level(codec)) {
1087 case SND_SOC_BIAS_PREPARE:
1088 /* Disable HP discharge */
1089 snd_soc_update_bits(codec, WM8960_APOP2,
1090 WM8960_DISOP | WM8960_DRES_MASK,
1093 /* Disable anti-pop features */
1094 snd_soc_update_bits(codec, WM8960_APOP1,
1095 WM8960_POBCTRL | WM8960_SOFT_ST |
1097 WM8960_POBCTRL | WM8960_SOFT_ST |
1106 case SND_SOC_BIAS_OFF:
1120 static bool is_pll_freq_available(unsigned int source, unsigned int target)
1124 if (source == 0 || target == 0)
1127 /* Scale up target to PLL operating frequency */
1129 Ndiv = target / source;
1133 Ndiv = target / source;
1136 if ((Ndiv < 6) || (Ndiv > 12))
1142 /* The size in bits of the pll divide multiplied by 10
1143 * to allow rounding later */
1144 #define FIXED_PLL_SIZE ((1 << 24) * 10)
1146 static int pll_factors(unsigned int source, unsigned int target,
1147 struct _pll_div *pll_div)
1149 unsigned long long Kpart;
1150 unsigned int K, Ndiv, Nmod;
1152 pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target);
1154 /* Scale up target to PLL operating frequency */
1157 Ndiv = target / source;
1160 pll_div->pre_div = 1;
1161 Ndiv = target / source;
1163 pll_div->pre_div = 0;
1165 if ((Ndiv < 6) || (Ndiv > 12)) {
1166 pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv);
1171 Nmod = target % source;
1172 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
1174 do_div(Kpart, source);
1176 K = Kpart & 0xFFFFFFFF;
1178 /* Check if we need to round */
1182 /* Move down to proper range now rounding is done */
1187 pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n",
1188 pll_div->n, pll_div->k, pll_div->pre_div);
1193 static int wm8960_set_pll(struct snd_soc_codec *codec,
1194 unsigned int freq_in, unsigned int freq_out)
1197 static struct _pll_div pll_div;
1200 if (freq_in && freq_out) {
1201 ret = pll_factors(freq_in, freq_out, &pll_div);
1206 /* Disable the PLL: even if we are changing the frequency the
1207 * PLL needs to be disabled while we do so. */
1208 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0);
1209 snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0);
1211 if (!freq_in || !freq_out)
1214 reg = snd_soc_read(codec, WM8960_PLL1) & ~0x3f;
1215 reg |= pll_div.pre_div << 4;
1221 snd_soc_write(codec, WM8960_PLL2, (pll_div.k >> 16) & 0xff);
1222 snd_soc_write(codec, WM8960_PLL3, (pll_div.k >> 8) & 0xff);
1223 snd_soc_write(codec, WM8960_PLL4, pll_div.k & 0xff);
1225 snd_soc_write(codec, WM8960_PLL1, reg);
1228 snd_soc_update_bits(codec, WM8960_POWER2, 0x1, 0x1);
1230 snd_soc_update_bits(codec, WM8960_CLOCK1, 0x1, 0x1);
1235 static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
1236 int source, unsigned int freq_in, unsigned int freq_out)
1238 struct snd_soc_codec *codec = codec_dai->codec;
1239 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
1241 wm8960->freq_in = freq_in;
1243 if (pll_id == WM8960_SYSCLK_AUTO)
1246 return wm8960_set_pll(codec, freq_in, freq_out);
1249 static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
1250 int div_id, int div)
1252 struct snd_soc_codec *codec = codec_dai->codec;
1256 case WM8960_SYSCLKDIV:
1257 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1f9;
1258 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
1261 reg = snd_soc_read(codec, WM8960_CLOCK1) & 0x1c7;
1262 snd_soc_write(codec, WM8960_CLOCK1, reg | div);
1264 case WM8960_OPCLKDIV:
1265 reg = snd_soc_read(codec, WM8960_PLL1) & 0x03f;
1266 snd_soc_write(codec, WM8960_PLL1, reg | div);
1268 case WM8960_DCLKDIV:
1269 reg = snd_soc_read(codec, WM8960_CLOCK2) & 0x03f;
1270 snd_soc_write(codec, WM8960_CLOCK2, reg | div);
1272 case WM8960_TOCLKSEL:
1273 reg = snd_soc_read(codec, WM8960_ADDCTL1) & 0x1fd;
1274 snd_soc_write(codec, WM8960_ADDCTL1, reg | div);
1283 static int wm8960_set_bias_level(struct snd_soc_codec *codec,
1284 enum snd_soc_bias_level level)
1286 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
1288 return wm8960->set_bias_level(codec, level);
1291 static int wm8960_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
1292 unsigned int freq, int dir)
1294 struct snd_soc_codec *codec = dai->codec;
1295 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
1298 case WM8960_SYSCLK_MCLK:
1299 snd_soc_update_bits(codec, WM8960_CLOCK1,
1300 0x1, WM8960_SYSCLK_MCLK);
1302 case WM8960_SYSCLK_PLL:
1303 snd_soc_update_bits(codec, WM8960_CLOCK1,
1304 0x1, WM8960_SYSCLK_PLL);
1306 case WM8960_SYSCLK_AUTO:
1312 wm8960->sysclk = freq;
1313 wm8960->clk_id = clk_id;
1318 #define WM8960_RATES SNDRV_PCM_RATE_8000_48000
1320 #define WM8960_FORMATS \
1321 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
1322 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
1324 static const struct snd_soc_dai_ops wm8960_dai_ops = {
1325 .hw_params = wm8960_hw_params,
1326 .hw_free = wm8960_hw_free,
1327 .digital_mute = wm8960_mute,
1328 .set_fmt = wm8960_set_dai_fmt,
1329 .set_clkdiv = wm8960_set_dai_clkdiv,
1330 .set_pll = wm8960_set_dai_pll,
1331 .set_sysclk = wm8960_set_dai_sysclk,
1334 static struct snd_soc_dai_driver wm8960_dai = {
1335 .name = "wm8960-hifi",
1337 .stream_name = "Playback",
1340 .rates = WM8960_RATES,
1341 .formats = WM8960_FORMATS,},
1343 .stream_name = "Capture",
1346 .rates = WM8960_RATES,
1347 .formats = WM8960_FORMATS,},
1348 .ops = &wm8960_dai_ops,
1349 .symmetric_rates = 1,
1352 static int wm8960_probe(struct snd_soc_codec *codec)
1354 struct wm8960_priv *wm8960 = snd_soc_codec_get_drvdata(codec);
1355 struct wm8960_data *pdata = &wm8960->pdata;
1358 wm8960->set_bias_level = wm8960_set_bias_level_capless;
1360 wm8960->set_bias_level = wm8960_set_bias_level_out3;
1362 snd_soc_add_codec_controls(codec, wm8960_snd_controls,
1363 ARRAY_SIZE(wm8960_snd_controls));
1364 wm8960_add_widgets(codec);
1369 static const struct snd_soc_codec_driver soc_codec_dev_wm8960 = {
1370 .probe = wm8960_probe,
1371 .set_bias_level = wm8960_set_bias_level,
1372 .suspend_bias_off = true,
1375 static const struct regmap_config wm8960_regmap = {
1378 .max_register = WM8960_PLL4,
1380 .reg_defaults = wm8960_reg_defaults,
1381 .num_reg_defaults = ARRAY_SIZE(wm8960_reg_defaults),
1382 .cache_type = REGCACHE_RBTREE,
1384 .volatile_reg = wm8960_volatile,
1387 static void wm8960_set_pdata_from_of(struct i2c_client *i2c,
1388 struct wm8960_data *pdata)
1390 const struct device_node *np = i2c->dev.of_node;
1392 if (of_property_read_bool(np, "wlf,capless"))
1393 pdata->capless = true;
1395 if (of_property_read_bool(np, "wlf,shared-lrclk"))
1396 pdata->shared_lrclk = true;
1399 static int wm8960_i2c_probe(struct i2c_client *i2c,
1400 const struct i2c_device_id *id)
1402 struct wm8960_data *pdata = dev_get_platdata(&i2c->dev);
1403 struct wm8960_priv *wm8960;
1406 wm8960 = devm_kzalloc(&i2c->dev, sizeof(struct wm8960_priv),
1411 wm8960->mclk = devm_clk_get(&i2c->dev, "mclk");
1412 if (IS_ERR(wm8960->mclk)) {
1413 if (PTR_ERR(wm8960->mclk) == -EPROBE_DEFER)
1414 return -EPROBE_DEFER;
1417 wm8960->regmap = devm_regmap_init_i2c(i2c, &wm8960_regmap);
1418 if (IS_ERR(wm8960->regmap))
1419 return PTR_ERR(wm8960->regmap);
1422 memcpy(&wm8960->pdata, pdata, sizeof(struct wm8960_data));
1423 else if (i2c->dev.of_node)
1424 wm8960_set_pdata_from_of(i2c, &wm8960->pdata);
1426 ret = wm8960_reset(wm8960->regmap);
1428 dev_err(&i2c->dev, "Failed to issue reset\n");
1432 if (wm8960->pdata.shared_lrclk) {
1433 ret = regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2,
1436 dev_err(&i2c->dev, "Failed to enable LRCM: %d\n",
1442 /* Latch the update bits */
1443 regmap_update_bits(wm8960->regmap, WM8960_LINVOL, 0x100, 0x100);
1444 regmap_update_bits(wm8960->regmap, WM8960_RINVOL, 0x100, 0x100);
1445 regmap_update_bits(wm8960->regmap, WM8960_LADC, 0x100, 0x100);
1446 regmap_update_bits(wm8960->regmap, WM8960_RADC, 0x100, 0x100);
1447 regmap_update_bits(wm8960->regmap, WM8960_LDAC, 0x100, 0x100);
1448 regmap_update_bits(wm8960->regmap, WM8960_RDAC, 0x100, 0x100);
1449 regmap_update_bits(wm8960->regmap, WM8960_LOUT1, 0x100, 0x100);
1450 regmap_update_bits(wm8960->regmap, WM8960_ROUT1, 0x100, 0x100);
1451 regmap_update_bits(wm8960->regmap, WM8960_LOUT2, 0x100, 0x100);
1452 regmap_update_bits(wm8960->regmap, WM8960_ROUT2, 0x100, 0x100);
1454 i2c_set_clientdata(i2c, wm8960);
1456 ret = snd_soc_register_codec(&i2c->dev,
1457 &soc_codec_dev_wm8960, &wm8960_dai, 1);
1462 static int wm8960_i2c_remove(struct i2c_client *client)
1464 snd_soc_unregister_codec(&client->dev);
1468 static const struct i2c_device_id wm8960_i2c_id[] = {
1472 MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id);
1474 static const struct of_device_id wm8960_of_match[] = {
1475 { .compatible = "wlf,wm8960", },
1478 MODULE_DEVICE_TABLE(of, wm8960_of_match);
1480 static struct i2c_driver wm8960_i2c_driver = {
1483 .of_match_table = wm8960_of_match,
1485 .probe = wm8960_i2c_probe,
1486 .remove = wm8960_i2c_remove,
1487 .id_table = wm8960_i2c_id,
1490 module_i2c_driver(wm8960_i2c_driver);
1492 MODULE_DESCRIPTION("ASoC WM8960 driver");
1493 MODULE_AUTHOR("Liam Girdwood");
1494 MODULE_LICENSE("GPL");