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_component *component,
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_component *,
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_component *component)
173 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
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(component->dev, "Set deemphasis %d\n", val);
194 return snd_soc_component_update_bits(component, WM8960_DACCTL1,
198 static int wm8960_get_deemph(struct snd_kcontrol *kcontrol,
199 struct snd_ctl_elem_value *ucontrol)
201 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
202 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
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_component *component = snd_soc_kcontrol_component(kcontrol);
212 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
213 unsigned int deemph = ucontrol->value.integer.value[0];
218 wm8960->deemph = deemph;
220 return wm8960_set_deemph(component);
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_component *component)
475 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
476 struct wm8960_data *pdata = &wm8960->pdata;
477 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
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, &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_component *component = codec_dai->component;
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_component_write(component, 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 * @component: component 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_component *component, int freq_in,
699 int *sysclk_idx, int *dac_idx, int *bclk_idx)
701 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
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_component *component)
752 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
753 int freq_out, freq_in;
754 u16 iface1 = snd_soc_component_read32(component, WM8960_IFACE1);
759 * For Slave mode clocking should still be configured,
760 * so this if statement should be removed, but some platform
761 * may not work if the sysclk is not configured, to avoid such
762 * compatible issue, just add '!wm8960->sysclk' condition in
765 if (!(iface1 & (1 << 6)) && !wm8960->sysclk) {
766 dev_warn(component->dev,
767 "slave mode, but proceeding with no clock configuration\n");
771 if (wm8960->clk_id != WM8960_SYSCLK_MCLK && !wm8960->freq_in) {
772 dev_err(component->dev, "No MCLK configured\n");
776 freq_in = wm8960->freq_in;
778 * If it's sysclk auto mode, check if the MCLK can provide sysclk or
779 * not. If MCLK can provide sysclk, using MCLK to provide sysclk
780 * directly. Otherwise, auto select a available pll out frequency
783 if (wm8960->clk_id == WM8960_SYSCLK_AUTO) {
784 /* disable the PLL and using MCLK to provide sysclk */
785 wm8960_set_pll(component, 0, 0);
787 } else if (wm8960->sysclk) {
788 freq_out = wm8960->sysclk;
790 dev_err(component->dev, "No SYSCLK configured\n");
794 if (wm8960->clk_id != WM8960_SYSCLK_PLL) {
795 ret = wm8960_configure_sysclk(wm8960, freq_out, &i, &j, &k);
797 goto configure_clock;
798 } else if (wm8960->clk_id != WM8960_SYSCLK_AUTO) {
799 dev_err(component->dev, "failed to configure clock\n");
804 freq_out = wm8960_configure_pll(component, freq_in, &i, &j, &k);
806 dev_err(component->dev, "failed to configure clock via PLL\n");
809 wm8960_set_pll(component, freq_in, freq_out);
812 /* configure sysclk clock */
813 snd_soc_component_update_bits(component, WM8960_CLOCK1, 3 << 1, i << 1);
815 /* configure frame clock */
816 snd_soc_component_update_bits(component, WM8960_CLOCK1, 0x7 << 3, j << 3);
817 snd_soc_component_update_bits(component, WM8960_CLOCK1, 0x7 << 6, j << 6);
819 /* configure bit clock */
820 snd_soc_component_update_bits(component, WM8960_CLOCK2, 0xf, k);
825 static int wm8960_hw_params(struct snd_pcm_substream *substream,
826 struct snd_pcm_hw_params *params,
827 struct snd_soc_dai *dai)
829 struct snd_soc_component *component = dai->component;
830 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
831 u16 iface = snd_soc_component_read32(component, WM8960_IFACE1) & 0xfff3;
832 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
835 wm8960->bclk = snd_soc_params_to_bclk(params);
836 if (params_channels(params) == 1)
840 switch (params_width(params)) {
850 /* right justify mode does not support 32 word length */
851 if ((iface & 0x3) != 0) {
857 dev_err(component->dev, "unsupported width %d\n",
858 params_width(params));
862 wm8960->lrclk = params_rate(params);
863 /* Update filters for the new rate */
865 wm8960_set_deemph(component);
867 for (i = 0; i < ARRAY_SIZE(alc_rates); i++)
868 if (alc_rates[i].rate == params_rate(params))
869 snd_soc_component_update_bits(component,
875 snd_soc_component_write(component, WM8960_IFACE1, iface);
877 wm8960->is_stream_in_use[tx] = true;
879 if (!wm8960->is_stream_in_use[!tx])
880 return wm8960_configure_clocking(component);
885 static int wm8960_hw_free(struct snd_pcm_substream *substream,
886 struct snd_soc_dai *dai)
888 struct snd_soc_component *component = dai->component;
889 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
890 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
892 wm8960->is_stream_in_use[tx] = false;
897 static int wm8960_mute(struct snd_soc_dai *dai, int mute)
899 struct snd_soc_component *component = dai->component;
902 snd_soc_component_update_bits(component, WM8960_DACCTL1, 0x8, 0x8);
904 snd_soc_component_update_bits(component, WM8960_DACCTL1, 0x8, 0);
908 static int wm8960_set_bias_level_out3(struct snd_soc_component *component,
909 enum snd_soc_bias_level level)
911 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
912 u16 pm2 = snd_soc_component_read32(component, WM8960_POWER2);
916 case SND_SOC_BIAS_ON:
919 case SND_SOC_BIAS_PREPARE:
920 switch (snd_soc_component_get_bias_level(component)) {
921 case SND_SOC_BIAS_STANDBY:
922 if (!IS_ERR(wm8960->mclk)) {
923 ret = clk_prepare_enable(wm8960->mclk);
925 dev_err(component->dev,
926 "Failed to enable MCLK: %d\n",
932 ret = wm8960_configure_clocking(component);
936 /* Set VMID to 2x50k */
937 snd_soc_component_update_bits(component, WM8960_POWER1, 0x180, 0x80);
940 case SND_SOC_BIAS_ON:
942 * If it's sysclk auto mode, and the pll is enabled,
945 if (wm8960->clk_id == WM8960_SYSCLK_AUTO && (pm2 & 0x1))
946 wm8960_set_pll(component, 0, 0);
948 if (!IS_ERR(wm8960->mclk))
949 clk_disable_unprepare(wm8960->mclk);
958 case SND_SOC_BIAS_STANDBY:
959 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
960 regcache_sync(wm8960->regmap);
962 /* Enable anti-pop features */
963 snd_soc_component_write(component, WM8960_APOP1,
964 WM8960_POBCTRL | WM8960_SOFT_ST |
965 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
967 /* Enable & ramp VMID at 2x50k */
968 snd_soc_component_update_bits(component, WM8960_POWER1, 0x80, 0x80);
972 snd_soc_component_update_bits(component, WM8960_POWER1, WM8960_VREF,
975 /* Disable anti-pop features */
976 snd_soc_component_write(component, WM8960_APOP1, WM8960_BUFIOEN);
979 /* Set VMID to 2x250k */
980 snd_soc_component_update_bits(component, WM8960_POWER1, 0x180, 0x100);
983 case SND_SOC_BIAS_OFF:
984 /* Enable anti-pop features */
985 snd_soc_component_write(component, WM8960_APOP1,
986 WM8960_POBCTRL | WM8960_SOFT_ST |
987 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
989 /* Disable VMID and VREF, let them discharge */
990 snd_soc_component_write(component, WM8960_POWER1, 0);
998 static int wm8960_set_bias_level_capless(struct snd_soc_component *component,
999 enum snd_soc_bias_level level)
1001 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
1002 u16 pm2 = snd_soc_component_read32(component, WM8960_POWER2);
1006 case SND_SOC_BIAS_ON:
1009 case SND_SOC_BIAS_PREPARE:
1010 switch (snd_soc_component_get_bias_level(component)) {
1011 case SND_SOC_BIAS_STANDBY:
1012 /* Enable anti pop mode */
1013 snd_soc_component_update_bits(component, WM8960_APOP1,
1014 WM8960_POBCTRL | WM8960_SOFT_ST |
1016 WM8960_POBCTRL | WM8960_SOFT_ST |
1019 /* Enable LOUT1, ROUT1 and OUT3 if they're enabled */
1021 if (wm8960->lout1 && wm8960->lout1->power)
1022 reg |= WM8960_PWR2_LOUT1;
1023 if (wm8960->rout1 && wm8960->rout1->power)
1024 reg |= WM8960_PWR2_ROUT1;
1025 if (wm8960->out3 && wm8960->out3->power)
1026 reg |= WM8960_PWR2_OUT3;
1027 snd_soc_component_update_bits(component, WM8960_POWER2,
1030 WM8960_PWR2_OUT3, reg);
1032 /* Enable VMID at 2*50k */
1033 snd_soc_component_update_bits(component, WM8960_POWER1,
1034 WM8960_VMID_MASK, 0x80);
1040 snd_soc_component_update_bits(component, WM8960_POWER1,
1041 WM8960_VREF, WM8960_VREF);
1045 if (!IS_ERR(wm8960->mclk)) {
1046 ret = clk_prepare_enable(wm8960->mclk);
1048 dev_err(component->dev,
1049 "Failed to enable MCLK: %d\n",
1055 ret = wm8960_configure_clocking(component);
1061 case SND_SOC_BIAS_ON:
1063 * If it's sysclk auto mode, and the pll is enabled,
1066 if (wm8960->clk_id == WM8960_SYSCLK_AUTO && (pm2 & 0x1))
1067 wm8960_set_pll(component, 0, 0);
1069 if (!IS_ERR(wm8960->mclk))
1070 clk_disable_unprepare(wm8960->mclk);
1072 /* Enable anti-pop mode */
1073 snd_soc_component_update_bits(component, WM8960_APOP1,
1074 WM8960_POBCTRL | WM8960_SOFT_ST |
1076 WM8960_POBCTRL | WM8960_SOFT_ST |
1079 /* Disable VMID and VREF */
1080 snd_soc_component_update_bits(component, WM8960_POWER1,
1081 WM8960_VREF | WM8960_VMID_MASK, 0);
1084 case SND_SOC_BIAS_OFF:
1085 regcache_sync(wm8960->regmap);
1092 case SND_SOC_BIAS_STANDBY:
1093 switch (snd_soc_component_get_bias_level(component)) {
1094 case SND_SOC_BIAS_PREPARE:
1095 /* Disable HP discharge */
1096 snd_soc_component_update_bits(component, WM8960_APOP2,
1097 WM8960_DISOP | WM8960_DRES_MASK,
1100 /* Disable anti-pop features */
1101 snd_soc_component_update_bits(component, WM8960_APOP1,
1102 WM8960_POBCTRL | WM8960_SOFT_ST |
1104 WM8960_POBCTRL | WM8960_SOFT_ST |
1113 case SND_SOC_BIAS_OFF:
1127 static bool is_pll_freq_available(unsigned int source, unsigned int target)
1131 if (source == 0 || target == 0)
1134 /* Scale up target to PLL operating frequency */
1136 Ndiv = target / source;
1140 Ndiv = target / source;
1143 if ((Ndiv < 6) || (Ndiv > 12))
1149 /* The size in bits of the pll divide multiplied by 10
1150 * to allow rounding later */
1151 #define FIXED_PLL_SIZE ((1 << 24) * 10)
1153 static int pll_factors(unsigned int source, unsigned int target,
1154 struct _pll_div *pll_div)
1156 unsigned long long Kpart;
1157 unsigned int K, Ndiv, Nmod;
1159 pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target);
1161 /* Scale up target to PLL operating frequency */
1164 Ndiv = target / source;
1167 pll_div->pre_div = 1;
1168 Ndiv = target / source;
1170 pll_div->pre_div = 0;
1172 if ((Ndiv < 6) || (Ndiv > 12)) {
1173 pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv);
1178 Nmod = target % source;
1179 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
1181 do_div(Kpart, source);
1183 K = Kpart & 0xFFFFFFFF;
1185 /* Check if we need to round */
1189 /* Move down to proper range now rounding is done */
1194 pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n",
1195 pll_div->n, pll_div->k, pll_div->pre_div);
1200 static int wm8960_set_pll(struct snd_soc_component *component,
1201 unsigned int freq_in, unsigned int freq_out)
1204 static struct _pll_div pll_div;
1207 if (freq_in && freq_out) {
1208 ret = pll_factors(freq_in, freq_out, &pll_div);
1213 /* Disable the PLL: even if we are changing the frequency the
1214 * PLL needs to be disabled while we do so. */
1215 snd_soc_component_update_bits(component, WM8960_CLOCK1, 0x1, 0);
1216 snd_soc_component_update_bits(component, WM8960_POWER2, 0x1, 0);
1218 if (!freq_in || !freq_out)
1221 reg = snd_soc_component_read32(component, WM8960_PLL1) & ~0x3f;
1222 reg |= pll_div.pre_div << 4;
1228 snd_soc_component_write(component, WM8960_PLL2, (pll_div.k >> 16) & 0xff);
1229 snd_soc_component_write(component, WM8960_PLL3, (pll_div.k >> 8) & 0xff);
1230 snd_soc_component_write(component, WM8960_PLL4, pll_div.k & 0xff);
1232 snd_soc_component_write(component, WM8960_PLL1, reg);
1235 snd_soc_component_update_bits(component, WM8960_POWER2, 0x1, 0x1);
1237 snd_soc_component_update_bits(component, WM8960_CLOCK1, 0x1, 0x1);
1242 static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
1243 int source, unsigned int freq_in, unsigned int freq_out)
1245 struct snd_soc_component *component = codec_dai->component;
1246 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
1248 wm8960->freq_in = freq_in;
1250 if (pll_id == WM8960_SYSCLK_AUTO)
1253 return wm8960_set_pll(component, freq_in, freq_out);
1256 static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
1257 int div_id, int div)
1259 struct snd_soc_component *component = codec_dai->component;
1263 case WM8960_SYSCLKDIV:
1264 reg = snd_soc_component_read32(component, WM8960_CLOCK1) & 0x1f9;
1265 snd_soc_component_write(component, WM8960_CLOCK1, reg | div);
1268 reg = snd_soc_component_read32(component, WM8960_CLOCK1) & 0x1c7;
1269 snd_soc_component_write(component, WM8960_CLOCK1, reg | div);
1271 case WM8960_OPCLKDIV:
1272 reg = snd_soc_component_read32(component, WM8960_PLL1) & 0x03f;
1273 snd_soc_component_write(component, WM8960_PLL1, reg | div);
1275 case WM8960_DCLKDIV:
1276 reg = snd_soc_component_read32(component, WM8960_CLOCK2) & 0x03f;
1277 snd_soc_component_write(component, WM8960_CLOCK2, reg | div);
1279 case WM8960_TOCLKSEL:
1280 reg = snd_soc_component_read32(component, WM8960_ADDCTL1) & 0x1fd;
1281 snd_soc_component_write(component, WM8960_ADDCTL1, reg | div);
1290 static int wm8960_set_bias_level(struct snd_soc_component *component,
1291 enum snd_soc_bias_level level)
1293 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
1295 return wm8960->set_bias_level(component, level);
1298 static int wm8960_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
1299 unsigned int freq, int dir)
1301 struct snd_soc_component *component = dai->component;
1302 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
1305 case WM8960_SYSCLK_MCLK:
1306 snd_soc_component_update_bits(component, WM8960_CLOCK1,
1307 0x1, WM8960_SYSCLK_MCLK);
1309 case WM8960_SYSCLK_PLL:
1310 snd_soc_component_update_bits(component, WM8960_CLOCK1,
1311 0x1, WM8960_SYSCLK_PLL);
1313 case WM8960_SYSCLK_AUTO:
1319 wm8960->sysclk = freq;
1320 wm8960->clk_id = clk_id;
1325 #define WM8960_RATES SNDRV_PCM_RATE_8000_48000
1327 #define WM8960_FORMATS \
1328 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
1329 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
1331 static const struct snd_soc_dai_ops wm8960_dai_ops = {
1332 .hw_params = wm8960_hw_params,
1333 .hw_free = wm8960_hw_free,
1334 .digital_mute = wm8960_mute,
1335 .set_fmt = wm8960_set_dai_fmt,
1336 .set_clkdiv = wm8960_set_dai_clkdiv,
1337 .set_pll = wm8960_set_dai_pll,
1338 .set_sysclk = wm8960_set_dai_sysclk,
1341 static struct snd_soc_dai_driver wm8960_dai = {
1342 .name = "wm8960-hifi",
1344 .stream_name = "Playback",
1347 .rates = WM8960_RATES,
1348 .formats = WM8960_FORMATS,},
1350 .stream_name = "Capture",
1353 .rates = WM8960_RATES,
1354 .formats = WM8960_FORMATS,},
1355 .ops = &wm8960_dai_ops,
1356 .symmetric_rates = 1,
1359 static int wm8960_probe(struct snd_soc_component *component)
1361 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
1362 struct wm8960_data *pdata = &wm8960->pdata;
1365 wm8960->set_bias_level = wm8960_set_bias_level_capless;
1367 wm8960->set_bias_level = wm8960_set_bias_level_out3;
1369 snd_soc_add_component_controls(component, wm8960_snd_controls,
1370 ARRAY_SIZE(wm8960_snd_controls));
1371 wm8960_add_widgets(component);
1376 static const struct snd_soc_component_driver soc_component_dev_wm8960 = {
1377 .probe = wm8960_probe,
1378 .set_bias_level = wm8960_set_bias_level,
1379 .suspend_bias_off = 1,
1381 .use_pmdown_time = 1,
1383 .non_legacy_dai_naming = 1,
1386 static const struct regmap_config wm8960_regmap = {
1389 .max_register = WM8960_PLL4,
1391 .reg_defaults = wm8960_reg_defaults,
1392 .num_reg_defaults = ARRAY_SIZE(wm8960_reg_defaults),
1393 .cache_type = REGCACHE_RBTREE,
1395 .volatile_reg = wm8960_volatile,
1398 static void wm8960_set_pdata_from_of(struct i2c_client *i2c,
1399 struct wm8960_data *pdata)
1401 const struct device_node *np = i2c->dev.of_node;
1403 if (of_property_read_bool(np, "wlf,capless"))
1404 pdata->capless = true;
1406 if (of_property_read_bool(np, "wlf,shared-lrclk"))
1407 pdata->shared_lrclk = true;
1410 static int wm8960_i2c_probe(struct i2c_client *i2c,
1411 const struct i2c_device_id *id)
1413 struct wm8960_data *pdata = dev_get_platdata(&i2c->dev);
1414 struct wm8960_priv *wm8960;
1417 wm8960 = devm_kzalloc(&i2c->dev, sizeof(struct wm8960_priv),
1422 wm8960->mclk = devm_clk_get(&i2c->dev, "mclk");
1423 if (IS_ERR(wm8960->mclk)) {
1424 if (PTR_ERR(wm8960->mclk) == -EPROBE_DEFER)
1425 return -EPROBE_DEFER;
1428 wm8960->regmap = devm_regmap_init_i2c(i2c, &wm8960_regmap);
1429 if (IS_ERR(wm8960->regmap))
1430 return PTR_ERR(wm8960->regmap);
1433 memcpy(&wm8960->pdata, pdata, sizeof(struct wm8960_data));
1434 else if (i2c->dev.of_node)
1435 wm8960_set_pdata_from_of(i2c, &wm8960->pdata);
1437 ret = wm8960_reset(wm8960->regmap);
1439 dev_err(&i2c->dev, "Failed to issue reset\n");
1443 if (wm8960->pdata.shared_lrclk) {
1444 ret = regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2,
1447 dev_err(&i2c->dev, "Failed to enable LRCM: %d\n",
1453 /* Latch the update bits */
1454 regmap_update_bits(wm8960->regmap, WM8960_LINVOL, 0x100, 0x100);
1455 regmap_update_bits(wm8960->regmap, WM8960_RINVOL, 0x100, 0x100);
1456 regmap_update_bits(wm8960->regmap, WM8960_LADC, 0x100, 0x100);
1457 regmap_update_bits(wm8960->regmap, WM8960_RADC, 0x100, 0x100);
1458 regmap_update_bits(wm8960->regmap, WM8960_LDAC, 0x100, 0x100);
1459 regmap_update_bits(wm8960->regmap, WM8960_RDAC, 0x100, 0x100);
1460 regmap_update_bits(wm8960->regmap, WM8960_LOUT1, 0x100, 0x100);
1461 regmap_update_bits(wm8960->regmap, WM8960_ROUT1, 0x100, 0x100);
1462 regmap_update_bits(wm8960->regmap, WM8960_LOUT2, 0x100, 0x100);
1463 regmap_update_bits(wm8960->regmap, WM8960_ROUT2, 0x100, 0x100);
1465 i2c_set_clientdata(i2c, wm8960);
1467 ret = devm_snd_soc_register_component(&i2c->dev,
1468 &soc_component_dev_wm8960, &wm8960_dai, 1);
1473 static int wm8960_i2c_remove(struct i2c_client *client)
1478 static const struct i2c_device_id wm8960_i2c_id[] = {
1482 MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id);
1484 static const struct of_device_id wm8960_of_match[] = {
1485 { .compatible = "wlf,wm8960", },
1488 MODULE_DEVICE_TABLE(of, wm8960_of_match);
1490 static struct i2c_driver wm8960_i2c_driver = {
1493 .of_match_table = wm8960_of_match,
1495 .probe = wm8960_i2c_probe,
1496 .remove = wm8960_i2c_remove,
1497 .id_table = wm8960_i2c_id,
1500 module_i2c_driver(wm8960_i2c_driver);
1502 MODULE_DESCRIPTION("ASoC WM8960 driver");
1503 MODULE_AUTHOR("Liam Girdwood");
1504 MODULE_LICENSE("GPL");