1 // SPDX-License-Identifier: GPL-2.0-only
3 * wm8960.c -- WM8960 ALSA SoC Audio driver
5 * Copyright 2007-11 Wolfson Microelectronics, plc
7 * Author: Liam Girdwood
10 #include <linux/module.h>
11 #include <linux/moduleparam.h>
12 #include <linux/init.h>
13 #include <linux/delay.h>
15 #include <linux/clk.h>
16 #include <linux/i2c.h>
17 #include <linux/acpi.h>
18 #include <linux/slab.h>
19 #include <sound/core.h>
20 #include <sound/pcm.h>
21 #include <sound/pcm_params.h>
22 #include <sound/soc.h>
23 #include <sound/initval.h>
24 #include <sound/tlv.h>
25 #include <sound/wm8960.h>
30 #define WM8960_VMID_MASK 0x180
31 #define WM8960_VREF 0x40
34 #define WM8960_PWR2_LOUT1 0x40
35 #define WM8960_PWR2_ROUT1 0x20
36 #define WM8960_PWR2_OUT3 0x02
38 /* R28 - Anti-pop 1 */
39 #define WM8960_POBCTRL 0x80
40 #define WM8960_BUFDCOPEN 0x10
41 #define WM8960_BUFIOEN 0x08
42 #define WM8960_SOFT_ST 0x04
43 #define WM8960_HPSTBY 0x01
45 /* R29 - Anti-pop 2 */
46 #define WM8960_DISOP 0x40
47 #define WM8960_DRES_MASK 0x30
49 #define WM8960_DSCH_TOUT 600 /* discharge timeout, ms */
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)
123 #define WM8960_NUM_SUPPLIES 5
124 static const char *wm8960_supply_names[WM8960_NUM_SUPPLIES] = {
134 struct regmap *regmap;
135 int (*set_bias_level)(struct snd_soc_component *,
136 enum snd_soc_bias_level level);
137 struct snd_soc_dapm_widget *lout1;
138 struct snd_soc_dapm_widget *rout1;
139 struct snd_soc_dapm_widget *out3;
146 bool is_stream_in_use[2];
147 struct wm8960_data pdata;
149 struct regulator_bulk_data supplies[WM8960_NUM_SUPPLIES];
152 #define wm8960_reset(c) regmap_write(c, WM8960_RESET, 0)
154 /* enumerated controls */
155 static const char *wm8960_polarity[] = {"No Inversion", "Left Inverted",
156 "Right Inverted", "Stereo Inversion"};
157 static const char *wm8960_3d_upper_cutoff[] = {"High", "Low"};
158 static const char *wm8960_3d_lower_cutoff[] = {"Low", "High"};
159 static const char *wm8960_alcfunc[] = {"Off", "Right", "Left", "Stereo"};
160 static const char *wm8960_alcmode[] = {"ALC", "Limiter"};
161 static const char *wm8960_adc_data_output_sel[] = {
162 "Left Data = Left ADC; Right Data = Right ADC",
163 "Left Data = Left ADC; Right Data = Left ADC",
164 "Left Data = Right ADC; Right Data = Right ADC",
165 "Left Data = Right ADC; Right Data = Left ADC",
167 static const char *wm8960_dmonomix[] = {"Stereo", "Mono"};
168 static const char *wm8960_dacslope[] = {"Normal", "Sloping"};
170 static const struct soc_enum wm8960_enum[] = {
171 SOC_ENUM_SINGLE(WM8960_DACCTL1, 5, 4, wm8960_polarity),
172 SOC_ENUM_SINGLE(WM8960_DACCTL2, 5, 4, wm8960_polarity),
173 SOC_ENUM_SINGLE(WM8960_3D, 6, 2, wm8960_3d_upper_cutoff),
174 SOC_ENUM_SINGLE(WM8960_3D, 5, 2, wm8960_3d_lower_cutoff),
175 SOC_ENUM_SINGLE(WM8960_ALC1, 7, 4, wm8960_alcfunc),
176 SOC_ENUM_SINGLE(WM8960_ALC3, 8, 2, wm8960_alcmode),
177 SOC_ENUM_SINGLE(WM8960_ADDCTL1, 2, 4, wm8960_adc_data_output_sel),
178 SOC_ENUM_SINGLE(WM8960_ADDCTL1, 4, 2, wm8960_dmonomix),
179 SOC_ENUM_SINGLE(WM8960_DACCTL2, 1, 2, wm8960_dacslope),
182 static const int deemph_settings[] = { 0, 32000, 44100, 48000 };
184 static int wm8960_set_deemph(struct snd_soc_component *component)
186 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
189 /* If we're using deemphasis select the nearest available sample
192 if (wm8960->deemph) {
194 for (i = 2; i < ARRAY_SIZE(deemph_settings); i++) {
195 if (abs(deemph_settings[i] - wm8960->lrclk) <
196 abs(deemph_settings[best] - wm8960->lrclk))
205 dev_dbg(component->dev, "Set deemphasis %d\n", val);
207 return snd_soc_component_update_bits(component, WM8960_DACCTL1,
211 static int wm8960_get_deemph(struct snd_kcontrol *kcontrol,
212 struct snd_ctl_elem_value *ucontrol)
214 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
215 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
217 ucontrol->value.integer.value[0] = wm8960->deemph;
221 static int wm8960_put_deemph(struct snd_kcontrol *kcontrol,
222 struct snd_ctl_elem_value *ucontrol)
224 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
225 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
226 unsigned int deemph = ucontrol->value.integer.value[0];
231 wm8960->deemph = deemph;
233 return wm8960_set_deemph(component);
236 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1);
237 static const DECLARE_TLV_DB_SCALE(inpga_tlv, -1725, 75, 0);
238 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
239 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -2100, 300, 0);
240 static const DECLARE_TLV_DB_SCALE(out_tlv, -12100, 100, 1);
241 static const DECLARE_TLV_DB_SCALE(lineinboost_tlv, -1500, 300, 1);
242 static const SNDRV_CTL_TLVD_DECLARE_DB_RANGE(micboost_tlv,
243 0, 1, TLV_DB_SCALE_ITEM(0, 1300, 0),
244 2, 3, TLV_DB_SCALE_ITEM(2000, 900, 0),
247 static const struct snd_kcontrol_new wm8960_snd_controls[] = {
248 SOC_DOUBLE_R_TLV("Capture Volume", WM8960_LINVOL, WM8960_RINVOL,
249 0, 63, 0, inpga_tlv),
250 SOC_DOUBLE_R("Capture Volume ZC Switch", WM8960_LINVOL, WM8960_RINVOL,
252 SOC_DOUBLE_R("Capture Switch", WM8960_LINVOL, WM8960_RINVOL,
255 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT3 Volume",
256 WM8960_INBMIX1, 4, 7, 0, lineinboost_tlv),
257 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT2 Volume",
258 WM8960_INBMIX1, 1, 7, 0, lineinboost_tlv),
259 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT3 Volume",
260 WM8960_INBMIX2, 4, 7, 0, lineinboost_tlv),
261 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT2 Volume",
262 WM8960_INBMIX2, 1, 7, 0, lineinboost_tlv),
263 SOC_SINGLE_TLV("Right Input Boost Mixer RINPUT1 Volume",
264 WM8960_RINPATH, 4, 3, 0, micboost_tlv),
265 SOC_SINGLE_TLV("Left Input Boost Mixer LINPUT1 Volume",
266 WM8960_LINPATH, 4, 3, 0, micboost_tlv),
268 SOC_DOUBLE_R_TLV("Playback Volume", WM8960_LDAC, WM8960_RDAC,
271 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8960_LOUT1, WM8960_ROUT1,
273 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8960_LOUT1, WM8960_ROUT1,
276 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8960_LOUT2, WM8960_ROUT2,
278 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8960_LOUT2, WM8960_ROUT2,
280 SOC_SINGLE("Speaker DC Volume", WM8960_CLASSD3, 3, 5, 0),
281 SOC_SINGLE("Speaker AC Volume", WM8960_CLASSD3, 0, 5, 0),
283 SOC_SINGLE("PCM Playback -6dB Switch", WM8960_DACCTL1, 7, 1, 0),
284 SOC_ENUM("ADC Polarity", wm8960_enum[0]),
285 SOC_SINGLE("ADC High Pass Filter Switch", WM8960_DACCTL1, 0, 1, 0),
287 SOC_ENUM("DAC Polarity", wm8960_enum[1]),
288 SOC_SINGLE_BOOL_EXT("DAC Deemphasis Switch", 0,
289 wm8960_get_deemph, wm8960_put_deemph),
291 SOC_ENUM("3D Filter Upper Cut-Off", wm8960_enum[2]),
292 SOC_ENUM("3D Filter Lower Cut-Off", wm8960_enum[3]),
293 SOC_SINGLE("3D Volume", WM8960_3D, 1, 15, 0),
294 SOC_SINGLE("3D Switch", WM8960_3D, 0, 1, 0),
296 SOC_ENUM("ALC Function", wm8960_enum[4]),
297 SOC_SINGLE("ALC Max Gain", WM8960_ALC1, 4, 7, 0),
298 SOC_SINGLE("ALC Target", WM8960_ALC1, 0, 15, 1),
299 SOC_SINGLE("ALC Min Gain", WM8960_ALC2, 4, 7, 0),
300 SOC_SINGLE("ALC Hold Time", WM8960_ALC2, 0, 15, 0),
301 SOC_ENUM("ALC Mode", wm8960_enum[5]),
302 SOC_SINGLE("ALC Decay", WM8960_ALC3, 4, 15, 0),
303 SOC_SINGLE("ALC Attack", WM8960_ALC3, 0, 15, 0),
305 SOC_SINGLE("Noise Gate Threshold", WM8960_NOISEG, 3, 31, 0),
306 SOC_SINGLE("Noise Gate Switch", WM8960_NOISEG, 0, 1, 0),
308 SOC_DOUBLE_R_TLV("ADC PCM Capture Volume", WM8960_LADC, WM8960_RADC,
311 SOC_SINGLE_TLV("Left Output Mixer Boost Bypass Volume",
312 WM8960_BYPASS1, 4, 7, 1, bypass_tlv),
313 SOC_SINGLE_TLV("Left Output Mixer LINPUT3 Volume",
314 WM8960_LOUTMIX, 4, 7, 1, bypass_tlv),
315 SOC_SINGLE_TLV("Right Output Mixer Boost Bypass Volume",
316 WM8960_BYPASS2, 4, 7, 1, bypass_tlv),
317 SOC_SINGLE_TLV("Right Output Mixer RINPUT3 Volume",
318 WM8960_ROUTMIX, 4, 7, 1, bypass_tlv),
320 SOC_ENUM("ADC Data Output Select", wm8960_enum[6]),
321 SOC_ENUM("DAC Mono Mix", wm8960_enum[7]),
322 SOC_ENUM("DAC Filter Characteristics", wm8960_enum[8]),
325 static const struct snd_kcontrol_new wm8960_lin_boost[] = {
326 SOC_DAPM_SINGLE("LINPUT2 Switch", WM8960_LINPATH, 6, 1, 0),
327 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LINPATH, 7, 1, 0),
328 SOC_DAPM_SINGLE("LINPUT1 Switch", WM8960_LINPATH, 8, 1, 0),
331 static const struct snd_kcontrol_new wm8960_lin[] = {
332 SOC_DAPM_SINGLE("Boost Switch", WM8960_LINPATH, 3, 1, 0),
335 static const struct snd_kcontrol_new wm8960_rin_boost[] = {
336 SOC_DAPM_SINGLE("RINPUT2 Switch", WM8960_RINPATH, 6, 1, 0),
337 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_RINPATH, 7, 1, 0),
338 SOC_DAPM_SINGLE("RINPUT1 Switch", WM8960_RINPATH, 8, 1, 0),
341 static const struct snd_kcontrol_new wm8960_rin[] = {
342 SOC_DAPM_SINGLE("Boost Switch", WM8960_RINPATH, 3, 1, 0),
345 static const struct snd_kcontrol_new wm8960_loutput_mixer[] = {
346 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_LOUTMIX, 8, 1, 0),
347 SOC_DAPM_SINGLE("LINPUT3 Switch", WM8960_LOUTMIX, 7, 1, 0),
348 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS1, 7, 1, 0),
351 static const struct snd_kcontrol_new wm8960_routput_mixer[] = {
352 SOC_DAPM_SINGLE("PCM Playback Switch", WM8960_ROUTMIX, 8, 1, 0),
353 SOC_DAPM_SINGLE("RINPUT3 Switch", WM8960_ROUTMIX, 7, 1, 0),
354 SOC_DAPM_SINGLE("Boost Bypass Switch", WM8960_BYPASS2, 7, 1, 0),
357 static const struct snd_kcontrol_new wm8960_mono_out[] = {
358 SOC_DAPM_SINGLE("Left Switch", WM8960_MONOMIX1, 7, 1, 0),
359 SOC_DAPM_SINGLE("Right Switch", WM8960_MONOMIX2, 7, 1, 0),
362 static const struct snd_soc_dapm_widget wm8960_dapm_widgets[] = {
363 SND_SOC_DAPM_INPUT("LINPUT1"),
364 SND_SOC_DAPM_INPUT("RINPUT1"),
365 SND_SOC_DAPM_INPUT("LINPUT2"),
366 SND_SOC_DAPM_INPUT("RINPUT2"),
367 SND_SOC_DAPM_INPUT("LINPUT3"),
368 SND_SOC_DAPM_INPUT("RINPUT3"),
370 SND_SOC_DAPM_SUPPLY("MICB", WM8960_POWER1, 1, 0, NULL, 0),
372 SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8960_POWER1, 5, 0,
373 wm8960_lin_boost, ARRAY_SIZE(wm8960_lin_boost)),
374 SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8960_POWER1, 4, 0,
375 wm8960_rin_boost, ARRAY_SIZE(wm8960_rin_boost)),
377 SND_SOC_DAPM_MIXER("Left Input Mixer", WM8960_POWER3, 5, 0,
378 wm8960_lin, ARRAY_SIZE(wm8960_lin)),
379 SND_SOC_DAPM_MIXER("Right Input Mixer", WM8960_POWER3, 4, 0,
380 wm8960_rin, ARRAY_SIZE(wm8960_rin)),
382 SND_SOC_DAPM_ADC("Left ADC", "Capture", WM8960_POWER1, 3, 0),
383 SND_SOC_DAPM_ADC("Right ADC", "Capture", WM8960_POWER1, 2, 0),
385 SND_SOC_DAPM_DAC("Left DAC", "Playback", WM8960_POWER2, 8, 0),
386 SND_SOC_DAPM_DAC("Right DAC", "Playback", WM8960_POWER2, 7, 0),
388 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8960_POWER3, 3, 0,
389 &wm8960_loutput_mixer[0],
390 ARRAY_SIZE(wm8960_loutput_mixer)),
391 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8960_POWER3, 2, 0,
392 &wm8960_routput_mixer[0],
393 ARRAY_SIZE(wm8960_routput_mixer)),
395 SND_SOC_DAPM_PGA("LOUT1 PGA", WM8960_POWER2, 6, 0, NULL, 0),
396 SND_SOC_DAPM_PGA("ROUT1 PGA", WM8960_POWER2, 5, 0, NULL, 0),
398 SND_SOC_DAPM_PGA("Left Speaker PGA", WM8960_POWER2, 4, 0, NULL, 0),
399 SND_SOC_DAPM_PGA("Right Speaker PGA", WM8960_POWER2, 3, 0, NULL, 0),
401 SND_SOC_DAPM_PGA("Right Speaker Output", WM8960_CLASSD1, 7, 0, NULL, 0),
402 SND_SOC_DAPM_PGA("Left Speaker Output", WM8960_CLASSD1, 6, 0, NULL, 0),
404 SND_SOC_DAPM_OUTPUT("SPK_LP"),
405 SND_SOC_DAPM_OUTPUT("SPK_LN"),
406 SND_SOC_DAPM_OUTPUT("HP_L"),
407 SND_SOC_DAPM_OUTPUT("HP_R"),
408 SND_SOC_DAPM_OUTPUT("SPK_RP"),
409 SND_SOC_DAPM_OUTPUT("SPK_RN"),
410 SND_SOC_DAPM_OUTPUT("OUT3"),
413 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_out3[] = {
414 SND_SOC_DAPM_MIXER("Mono Output Mixer", WM8960_POWER2, 1, 0,
416 ARRAY_SIZE(wm8960_mono_out)),
419 /* Represent OUT3 as a PGA so that it gets turned on with LOUT1/ROUT1 */
420 static const struct snd_soc_dapm_widget wm8960_dapm_widgets_capless[] = {
421 SND_SOC_DAPM_PGA("OUT3 VMID", WM8960_POWER2, 1, 0, NULL, 0),
424 static const struct snd_soc_dapm_route audio_paths[] = {
425 { "Left Boost Mixer", "LINPUT1 Switch", "LINPUT1" },
426 { "Left Boost Mixer", "LINPUT2 Switch", "LINPUT2" },
427 { "Left Boost Mixer", "LINPUT3 Switch", "LINPUT3" },
429 { "Left Input Mixer", "Boost Switch", "Left Boost Mixer" },
430 { "Left Input Mixer", "Boost Switch", "LINPUT1" }, /* Really Boost Switch */
431 { "Left Input Mixer", NULL, "LINPUT2" },
432 { "Left Input Mixer", NULL, "LINPUT3" },
434 { "Right Boost Mixer", "RINPUT1 Switch", "RINPUT1" },
435 { "Right Boost Mixer", "RINPUT2 Switch", "RINPUT2" },
436 { "Right Boost Mixer", "RINPUT3 Switch", "RINPUT3" },
438 { "Right Input Mixer", "Boost Switch", "Right Boost Mixer" },
439 { "Right Input Mixer", "Boost Switch", "RINPUT1" }, /* Really Boost Switch */
440 { "Right Input Mixer", NULL, "RINPUT2" },
441 { "Right Input Mixer", NULL, "RINPUT3" },
443 { "Left ADC", NULL, "Left Input Mixer" },
444 { "Right ADC", NULL, "Right Input Mixer" },
446 { "Left Output Mixer", "LINPUT3 Switch", "LINPUT3" },
447 { "Left Output Mixer", "Boost Bypass Switch", "Left Boost Mixer" },
448 { "Left Output Mixer", "PCM Playback Switch", "Left DAC" },
450 { "Right Output Mixer", "RINPUT3 Switch", "RINPUT3" },
451 { "Right Output Mixer", "Boost Bypass Switch", "Right Boost Mixer" },
452 { "Right Output Mixer", "PCM Playback Switch", "Right DAC" },
454 { "LOUT1 PGA", NULL, "Left Output Mixer" },
455 { "ROUT1 PGA", NULL, "Right Output Mixer" },
457 { "HP_L", NULL, "LOUT1 PGA" },
458 { "HP_R", NULL, "ROUT1 PGA" },
460 { "Left Speaker PGA", NULL, "Left Output Mixer" },
461 { "Right Speaker PGA", NULL, "Right Output Mixer" },
463 { "Left Speaker Output", NULL, "Left Speaker PGA" },
464 { "Right Speaker Output", NULL, "Right Speaker PGA" },
466 { "SPK_LN", NULL, "Left Speaker Output" },
467 { "SPK_LP", NULL, "Left Speaker Output" },
468 { "SPK_RN", NULL, "Right Speaker Output" },
469 { "SPK_RP", NULL, "Right Speaker Output" },
472 static const struct snd_soc_dapm_route audio_paths_out3[] = {
473 { "Mono Output Mixer", "Left Switch", "Left Output Mixer" },
474 { "Mono Output Mixer", "Right Switch", "Right Output Mixer" },
476 { "OUT3", NULL, "Mono Output Mixer", }
479 static const struct snd_soc_dapm_route audio_paths_capless[] = {
480 { "HP_L", NULL, "OUT3 VMID" },
481 { "HP_R", NULL, "OUT3 VMID" },
483 { "OUT3 VMID", NULL, "Left Output Mixer" },
484 { "OUT3 VMID", NULL, "Right Output Mixer" },
487 static int wm8960_add_widgets(struct snd_soc_component *component)
489 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
490 struct wm8960_data *pdata = &wm8960->pdata;
491 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
492 struct snd_soc_dapm_widget *w;
494 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets,
495 ARRAY_SIZE(wm8960_dapm_widgets));
497 snd_soc_dapm_add_routes(dapm, audio_paths, ARRAY_SIZE(audio_paths));
499 /* In capless mode OUT3 is used to provide VMID for the
500 * headphone outputs, otherwise it is used as a mono mixer.
502 if (pdata && pdata->capless) {
503 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_capless,
504 ARRAY_SIZE(wm8960_dapm_widgets_capless));
506 snd_soc_dapm_add_routes(dapm, audio_paths_capless,
507 ARRAY_SIZE(audio_paths_capless));
509 snd_soc_dapm_new_controls(dapm, wm8960_dapm_widgets_out3,
510 ARRAY_SIZE(wm8960_dapm_widgets_out3));
512 snd_soc_dapm_add_routes(dapm, audio_paths_out3,
513 ARRAY_SIZE(audio_paths_out3));
516 /* We need to power up the headphone output stage out of
517 * sequence for capless mode. To save scanning the widget
518 * list each time to find the desired power state do so now
519 * and save the result.
521 list_for_each_entry(w, &component->card->widgets, list) {
524 if (strcmp(w->name, "LOUT1 PGA") == 0)
526 if (strcmp(w->name, "ROUT1 PGA") == 0)
528 if (strcmp(w->name, "OUT3 VMID") == 0)
535 static int wm8960_set_dai_fmt(struct snd_soc_dai *codec_dai,
538 struct snd_soc_component *component = codec_dai->component;
541 /* set master/slave audio interface */
542 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
543 case SND_SOC_DAIFMT_CBM_CFM:
546 case SND_SOC_DAIFMT_CBS_CFS:
552 /* interface format */
553 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
554 case SND_SOC_DAIFMT_I2S:
557 case SND_SOC_DAIFMT_RIGHT_J:
559 case SND_SOC_DAIFMT_LEFT_J:
562 case SND_SOC_DAIFMT_DSP_A:
565 case SND_SOC_DAIFMT_DSP_B:
572 /* clock inversion */
573 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
574 case SND_SOC_DAIFMT_NB_NF:
576 case SND_SOC_DAIFMT_IB_IF:
579 case SND_SOC_DAIFMT_IB_NF:
582 case SND_SOC_DAIFMT_NB_IF:
590 snd_soc_component_write(component, WM8960_IFACE1, iface);
609 /* -1 for reserved value */
610 static const int sysclk_divs[] = { 1, -1, 2, -1 };
612 /* Multiply 256 for internal 256 div */
613 static const int dac_divs[] = { 256, 384, 512, 768, 1024, 1408, 1536 };
615 /* Multiply 10 to eliminate decimials */
616 static const int bclk_divs[] = {
617 10, 15, 20, 30, 40, 55, 60, 80, 110,
618 120, 160, 220, 240, 320, 320, 320
622 * wm8960_configure_sysclk - checks if there is a sysclk frequency available
623 * The sysclk must be chosen such that:
624 * - sysclk = MCLK / sysclk_divs
625 * - lrclk = sysclk / dac_divs
626 * - 10 * bclk = sysclk / bclk_divs
628 * @wm8960: codec private data
629 * @mclk: MCLK used to derive sysclk
630 * @sysclk_idx: sysclk_divs index for found sysclk
631 * @dac_idx: dac_divs index for found lrclk
632 * @bclk_idx: bclk_divs index for found bclk
635 * -1, in case no sysclk frequency available found
636 * >=0, in case we could derive bclk and lrclk from sysclk using
637 * (@sysclk_idx, @dac_idx, @bclk_idx) dividers
640 int wm8960_configure_sysclk(struct wm8960_priv *wm8960, int mclk,
641 int *sysclk_idx, int *dac_idx, int *bclk_idx)
643 int sysclk, bclk, lrclk;
647 /* marker for no match */
651 lrclk = wm8960->lrclk;
653 /* check if the sysclk frequency is available. */
654 for (i = 0; i < ARRAY_SIZE(sysclk_divs); ++i) {
655 if (sysclk_divs[i] == -1)
657 sysclk = mclk / sysclk_divs[i];
658 for (j = 0; j < ARRAY_SIZE(dac_divs); ++j) {
659 if (sysclk != dac_divs[j] * lrclk)
661 for (k = 0; k < ARRAY_SIZE(bclk_divs); ++k) {
662 diff = sysclk - bclk * bclk_divs[k] / 10;
670 if (k != ARRAY_SIZE(bclk_divs))
673 if (j != ARRAY_SIZE(dac_divs))
680 * wm8960_configure_pll - checks if there is a PLL out frequency available
681 * The PLL out frequency must be chosen such that:
682 * - sysclk = lrclk * dac_divs
683 * - freq_out = sysclk * sysclk_divs
684 * - 10 * sysclk = bclk * bclk_divs
686 * If we cannot find an exact match for (sysclk, lrclk, bclk)
687 * triplet, we relax the bclk such that bclk is chosen as the
688 * closest available frequency greater than expected bclk.
690 * @component: component structure
691 * @freq_in: input frequency used to derive freq out via PLL
692 * @sysclk_idx: sysclk_divs index for found sysclk
693 * @dac_idx: dac_divs index for found lrclk
694 * @bclk_idx: bclk_divs index for found bclk
697 * < 0, in case no PLL frequency out available was found
698 * >=0, in case we could derive bclk, lrclk, sysclk from PLL out using
699 * (@sysclk_idx, @dac_idx, @bclk_idx) dividers
702 int wm8960_configure_pll(struct snd_soc_component *component, int freq_in,
703 int *sysclk_idx, int *dac_idx, int *bclk_idx)
705 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
706 int sysclk, bclk, lrclk, freq_out;
707 int diff, closest, best_freq_out;
711 lrclk = wm8960->lrclk;
714 best_freq_out = -EINVAL;
715 *sysclk_idx = *dac_idx = *bclk_idx = -1;
718 * From Datasheet, the PLL performs best when f2 is between
719 * 90MHz and 100MHz, the desired sysclk output is 11.2896MHz
720 * or 12.288MHz, then sysclkdiv = 2 is the best choice.
721 * So search sysclk_divs from 2 to 1 other than from 1 to 2.
723 for (i = ARRAY_SIZE(sysclk_divs) - 1; i >= 0; --i) {
724 if (sysclk_divs[i] == -1)
726 for (j = 0; j < ARRAY_SIZE(dac_divs); ++j) {
727 sysclk = lrclk * dac_divs[j];
728 freq_out = sysclk * sysclk_divs[i];
730 for (k = 0; k < ARRAY_SIZE(bclk_divs); ++k) {
731 if (!is_pll_freq_available(freq_in, freq_out))
734 diff = sysclk - bclk * bclk_divs[k] / 10;
741 if (diff > 0 && closest > diff) {
746 best_freq_out = freq_out;
752 return best_freq_out;
754 static int wm8960_configure_clocking(struct snd_soc_component *component)
756 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
757 int freq_out, freq_in;
758 u16 iface1 = snd_soc_component_read(component, WM8960_IFACE1);
763 * For Slave mode clocking should still be configured,
764 * so this if statement should be removed, but some platform
765 * may not work if the sysclk is not configured, to avoid such
766 * compatible issue, just add '!wm8960->sysclk' condition in
769 if (!(iface1 & (1 << 6)) && !wm8960->sysclk) {
770 dev_warn(component->dev,
771 "slave mode, but proceeding with no clock configuration\n");
775 if (wm8960->clk_id != WM8960_SYSCLK_MCLK && !wm8960->freq_in) {
776 dev_err(component->dev, "No MCLK configured\n");
780 freq_in = wm8960->freq_in;
782 * If it's sysclk auto mode, check if the MCLK can provide sysclk or
783 * not. If MCLK can provide sysclk, using MCLK to provide sysclk
784 * directly. Otherwise, auto select a available pll out frequency
787 if (wm8960->clk_id == WM8960_SYSCLK_AUTO) {
788 /* disable the PLL and using MCLK to provide sysclk */
789 wm8960_set_pll(component, 0, 0);
791 } else if (wm8960->sysclk) {
792 freq_out = wm8960->sysclk;
794 dev_err(component->dev, "No SYSCLK configured\n");
798 if (wm8960->clk_id != WM8960_SYSCLK_PLL) {
799 ret = wm8960_configure_sysclk(wm8960, freq_out, &i, &j, &k);
801 goto configure_clock;
802 } else if (wm8960->clk_id != WM8960_SYSCLK_AUTO) {
803 dev_err(component->dev, "failed to configure clock\n");
808 freq_out = wm8960_configure_pll(component, freq_in, &i, &j, &k);
810 dev_err(component->dev, "failed to configure clock via PLL\n");
813 wm8960_set_pll(component, freq_in, freq_out);
816 /* configure sysclk clock */
817 snd_soc_component_update_bits(component, WM8960_CLOCK1, 3 << 1, i << 1);
819 /* configure frame clock */
820 snd_soc_component_update_bits(component, WM8960_CLOCK1, 0x7 << 3, j << 3);
821 snd_soc_component_update_bits(component, WM8960_CLOCK1, 0x7 << 6, j << 6);
823 /* configure bit clock */
824 snd_soc_component_update_bits(component, WM8960_CLOCK2, 0xf, k);
829 static int wm8960_hw_params(struct snd_pcm_substream *substream,
830 struct snd_pcm_hw_params *params,
831 struct snd_soc_dai *dai)
833 struct snd_soc_component *component = dai->component;
834 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
835 u16 iface = snd_soc_component_read(component, WM8960_IFACE1) & 0xfff3;
836 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
839 wm8960->bclk = snd_soc_params_to_bclk(params);
840 if (params_channels(params) == 1)
844 switch (params_width(params)) {
854 /* right justify mode does not support 32 word length */
855 if ((iface & 0x3) != 0) {
861 dev_err(component->dev, "unsupported width %d\n",
862 params_width(params));
866 wm8960->lrclk = params_rate(params);
867 /* Update filters for the new rate */
869 wm8960_set_deemph(component);
871 for (i = 0; i < ARRAY_SIZE(alc_rates); i++)
872 if (alc_rates[i].rate == params_rate(params))
873 snd_soc_component_update_bits(component,
879 snd_soc_component_write(component, WM8960_IFACE1, iface);
881 wm8960->is_stream_in_use[tx] = true;
883 if (!wm8960->is_stream_in_use[!tx])
884 return wm8960_configure_clocking(component);
889 static int wm8960_hw_free(struct snd_pcm_substream *substream,
890 struct snd_soc_dai *dai)
892 struct snd_soc_component *component = dai->component;
893 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
894 bool tx = substream->stream == SNDRV_PCM_STREAM_PLAYBACK;
896 wm8960->is_stream_in_use[tx] = false;
901 static int wm8960_mute(struct snd_soc_dai *dai, int mute, int direction)
903 struct snd_soc_component *component = dai->component;
906 snd_soc_component_update_bits(component, WM8960_DACCTL1, 0x8, 0x8);
908 snd_soc_component_update_bits(component, WM8960_DACCTL1, 0x8, 0);
912 static int wm8960_set_bias_level_out3(struct snd_soc_component *component,
913 enum snd_soc_bias_level level)
915 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
916 u16 pm2 = snd_soc_component_read(component, WM8960_POWER2);
921 case SND_SOC_BIAS_ON:
924 case SND_SOC_BIAS_PREPARE:
925 switch (snd_soc_component_get_bias_level(component)) {
926 case SND_SOC_BIAS_STANDBY:
927 if (!IS_ERR(wm8960->mclk)) {
928 ret = clk_prepare_enable(wm8960->mclk);
930 dev_err(component->dev,
931 "Failed to enable MCLK: %d\n",
937 ret = wm8960_configure_clocking(component);
941 /* Set VMID to 2x50k */
942 snd_soc_component_update_bits(component, WM8960_POWER1, 0x180, 0x80);
945 case SND_SOC_BIAS_ON:
947 * If it's sysclk auto mode, and the pll is enabled,
950 if (wm8960->clk_id == WM8960_SYSCLK_AUTO && (pm2 & 0x1))
951 wm8960_set_pll(component, 0, 0);
953 if (!IS_ERR(wm8960->mclk))
954 clk_disable_unprepare(wm8960->mclk);
963 case SND_SOC_BIAS_STANDBY:
964 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
965 /* ensure discharge is complete */
966 tout = WM8960_DSCH_TOUT - ktime_ms_delta(ktime_get(), wm8960->dsch_start);
970 regcache_sync(wm8960->regmap);
972 /* Enable anti-pop features */
973 snd_soc_component_write(component, WM8960_APOP1,
974 WM8960_POBCTRL | WM8960_SOFT_ST |
975 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
977 /* Enable & ramp VMID at 2x50k */
978 snd_soc_component_update_bits(component, WM8960_POWER1, 0x80, 0x80);
982 snd_soc_component_update_bits(component, WM8960_POWER1, WM8960_VREF,
985 /* Disable anti-pop features */
986 snd_soc_component_write(component, WM8960_APOP1, WM8960_BUFIOEN);
989 /* Set VMID to 2x250k */
990 snd_soc_component_update_bits(component, WM8960_POWER1, 0x180, 0x100);
993 case SND_SOC_BIAS_OFF:
994 /* Enable anti-pop features */
995 snd_soc_component_write(component, WM8960_APOP1,
996 WM8960_POBCTRL | WM8960_SOFT_ST |
997 WM8960_BUFDCOPEN | WM8960_BUFIOEN);
999 /* Disable VMID and VREF, mark discharge */
1000 snd_soc_component_write(component, WM8960_POWER1, 0);
1001 wm8960->dsch_start = ktime_get();
1008 static int wm8960_set_bias_level_capless(struct snd_soc_component *component,
1009 enum snd_soc_bias_level level)
1011 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
1012 u16 pm2 = snd_soc_component_read(component, WM8960_POWER2);
1016 case SND_SOC_BIAS_ON:
1019 case SND_SOC_BIAS_PREPARE:
1020 switch (snd_soc_component_get_bias_level(component)) {
1021 case SND_SOC_BIAS_STANDBY:
1022 /* Enable anti pop mode */
1023 snd_soc_component_update_bits(component, WM8960_APOP1,
1024 WM8960_POBCTRL | WM8960_SOFT_ST |
1026 WM8960_POBCTRL | WM8960_SOFT_ST |
1029 /* Enable LOUT1, ROUT1 and OUT3 if they're enabled */
1031 if (wm8960->lout1 && wm8960->lout1->power)
1032 reg |= WM8960_PWR2_LOUT1;
1033 if (wm8960->rout1 && wm8960->rout1->power)
1034 reg |= WM8960_PWR2_ROUT1;
1035 if (wm8960->out3 && wm8960->out3->power)
1036 reg |= WM8960_PWR2_OUT3;
1037 snd_soc_component_update_bits(component, WM8960_POWER2,
1040 WM8960_PWR2_OUT3, reg);
1042 /* Enable VMID at 2*50k */
1043 snd_soc_component_update_bits(component, WM8960_POWER1,
1044 WM8960_VMID_MASK, 0x80);
1050 snd_soc_component_update_bits(component, WM8960_POWER1,
1051 WM8960_VREF, WM8960_VREF);
1055 if (!IS_ERR(wm8960->mclk)) {
1056 ret = clk_prepare_enable(wm8960->mclk);
1058 dev_err(component->dev,
1059 "Failed to enable MCLK: %d\n",
1065 ret = wm8960_configure_clocking(component);
1071 case SND_SOC_BIAS_ON:
1073 * If it's sysclk auto mode, and the pll is enabled,
1076 if (wm8960->clk_id == WM8960_SYSCLK_AUTO && (pm2 & 0x1))
1077 wm8960_set_pll(component, 0, 0);
1079 if (!IS_ERR(wm8960->mclk))
1080 clk_disable_unprepare(wm8960->mclk);
1082 /* Enable anti-pop mode */
1083 snd_soc_component_update_bits(component, WM8960_APOP1,
1084 WM8960_POBCTRL | WM8960_SOFT_ST |
1086 WM8960_POBCTRL | WM8960_SOFT_ST |
1089 /* Disable VMID and VREF */
1090 snd_soc_component_update_bits(component, WM8960_POWER1,
1091 WM8960_VREF | WM8960_VMID_MASK, 0);
1094 case SND_SOC_BIAS_OFF:
1095 regcache_sync(wm8960->regmap);
1102 case SND_SOC_BIAS_STANDBY:
1103 switch (snd_soc_component_get_bias_level(component)) {
1104 case SND_SOC_BIAS_PREPARE:
1105 /* Disable HP discharge */
1106 snd_soc_component_update_bits(component, WM8960_APOP2,
1107 WM8960_DISOP | WM8960_DRES_MASK,
1110 /* Disable anti-pop features */
1111 snd_soc_component_update_bits(component, WM8960_APOP1,
1112 WM8960_POBCTRL | WM8960_SOFT_ST |
1114 WM8960_POBCTRL | WM8960_SOFT_ST |
1123 case SND_SOC_BIAS_OFF:
1137 static bool is_pll_freq_available(unsigned int source, unsigned int target)
1141 if (source == 0 || target == 0)
1144 /* Scale up target to PLL operating frequency */
1146 Ndiv = target / source;
1150 Ndiv = target / source;
1153 if ((Ndiv < 6) || (Ndiv > 12))
1159 /* The size in bits of the pll divide multiplied by 10
1160 * to allow rounding later */
1161 #define FIXED_PLL_SIZE ((1 << 24) * 10)
1163 static int pll_factors(unsigned int source, unsigned int target,
1164 struct _pll_div *pll_div)
1166 unsigned long long Kpart;
1167 unsigned int K, Ndiv, Nmod;
1169 pr_debug("WM8960 PLL: setting %dHz->%dHz\n", source, target);
1171 /* Scale up target to PLL operating frequency */
1174 Ndiv = target / source;
1177 pll_div->pre_div = 1;
1178 Ndiv = target / source;
1180 pll_div->pre_div = 0;
1182 if ((Ndiv < 6) || (Ndiv > 12)) {
1183 pr_err("WM8960 PLL: Unsupported N=%d\n", Ndiv);
1188 Nmod = target % source;
1189 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
1191 do_div(Kpart, source);
1193 K = Kpart & 0xFFFFFFFF;
1195 /* Check if we need to round */
1199 /* Move down to proper range now rounding is done */
1204 pr_debug("WM8960 PLL: N=%x K=%x pre_div=%d\n",
1205 pll_div->n, pll_div->k, pll_div->pre_div);
1210 static int wm8960_set_pll(struct snd_soc_component *component,
1211 unsigned int freq_in, unsigned int freq_out)
1214 static struct _pll_div pll_div;
1217 if (freq_in && freq_out) {
1218 ret = pll_factors(freq_in, freq_out, &pll_div);
1223 /* Disable the PLL: even if we are changing the frequency the
1224 * PLL needs to be disabled while we do so. */
1225 snd_soc_component_update_bits(component, WM8960_CLOCK1, 0x1, 0);
1226 snd_soc_component_update_bits(component, WM8960_POWER2, 0x1, 0);
1228 if (!freq_in || !freq_out)
1231 reg = snd_soc_component_read(component, WM8960_PLL1) & ~0x3f;
1232 reg |= pll_div.pre_div << 4;
1238 snd_soc_component_write(component, WM8960_PLL2, (pll_div.k >> 16) & 0xff);
1239 snd_soc_component_write(component, WM8960_PLL3, (pll_div.k >> 8) & 0xff);
1240 snd_soc_component_write(component, WM8960_PLL4, pll_div.k & 0xff);
1242 snd_soc_component_write(component, WM8960_PLL1, reg);
1245 snd_soc_component_update_bits(component, WM8960_POWER2, 0x1, 0x1);
1247 snd_soc_component_update_bits(component, WM8960_CLOCK1, 0x1, 0x1);
1252 static int wm8960_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
1253 int source, unsigned int freq_in, unsigned int freq_out)
1255 struct snd_soc_component *component = codec_dai->component;
1256 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
1258 wm8960->freq_in = freq_in;
1260 if (pll_id == WM8960_SYSCLK_AUTO)
1263 return wm8960_set_pll(component, freq_in, freq_out);
1266 static int wm8960_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
1267 int div_id, int div)
1269 struct snd_soc_component *component = codec_dai->component;
1273 case WM8960_SYSCLKDIV:
1274 reg = snd_soc_component_read(component, WM8960_CLOCK1) & 0x1f9;
1275 snd_soc_component_write(component, WM8960_CLOCK1, reg | div);
1278 reg = snd_soc_component_read(component, WM8960_CLOCK1) & 0x1c7;
1279 snd_soc_component_write(component, WM8960_CLOCK1, reg | div);
1281 case WM8960_OPCLKDIV:
1282 reg = snd_soc_component_read(component, WM8960_PLL1) & 0x03f;
1283 snd_soc_component_write(component, WM8960_PLL1, reg | div);
1285 case WM8960_DCLKDIV:
1286 reg = snd_soc_component_read(component, WM8960_CLOCK2) & 0x03f;
1287 snd_soc_component_write(component, WM8960_CLOCK2, reg | div);
1289 case WM8960_TOCLKSEL:
1290 reg = snd_soc_component_read(component, WM8960_ADDCTL1) & 0x1fd;
1291 snd_soc_component_write(component, WM8960_ADDCTL1, reg | div);
1300 static int wm8960_set_bias_level(struct snd_soc_component *component,
1301 enum snd_soc_bias_level level)
1303 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
1305 return wm8960->set_bias_level(component, level);
1308 static int wm8960_set_dai_sysclk(struct snd_soc_dai *dai, int clk_id,
1309 unsigned int freq, int dir)
1311 struct snd_soc_component *component = dai->component;
1312 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
1315 case WM8960_SYSCLK_MCLK:
1316 snd_soc_component_update_bits(component, WM8960_CLOCK1,
1317 0x1, WM8960_SYSCLK_MCLK);
1319 case WM8960_SYSCLK_PLL:
1320 snd_soc_component_update_bits(component, WM8960_CLOCK1,
1321 0x1, WM8960_SYSCLK_PLL);
1323 case WM8960_SYSCLK_AUTO:
1329 wm8960->sysclk = freq;
1330 wm8960->clk_id = clk_id;
1335 #define WM8960_RATES SNDRV_PCM_RATE_8000_48000
1337 #define WM8960_FORMATS \
1338 (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
1339 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
1341 static const struct snd_soc_dai_ops wm8960_dai_ops = {
1342 .hw_params = wm8960_hw_params,
1343 .hw_free = wm8960_hw_free,
1344 .mute_stream = wm8960_mute,
1345 .set_fmt = wm8960_set_dai_fmt,
1346 .set_clkdiv = wm8960_set_dai_clkdiv,
1347 .set_pll = wm8960_set_dai_pll,
1348 .set_sysclk = wm8960_set_dai_sysclk,
1349 .no_capture_mute = 1,
1352 static struct snd_soc_dai_driver wm8960_dai = {
1353 .name = "wm8960-hifi",
1355 .stream_name = "Playback",
1358 .rates = WM8960_RATES,
1359 .formats = WM8960_FORMATS,},
1361 .stream_name = "Capture",
1364 .rates = WM8960_RATES,
1365 .formats = WM8960_FORMATS,},
1366 .ops = &wm8960_dai_ops,
1367 .symmetric_rate = 1,
1370 static int wm8960_probe(struct snd_soc_component *component)
1372 struct wm8960_priv *wm8960 = snd_soc_component_get_drvdata(component);
1373 struct wm8960_data *pdata = &wm8960->pdata;
1376 wm8960->set_bias_level = wm8960_set_bias_level_capless;
1378 wm8960->set_bias_level = wm8960_set_bias_level_out3;
1380 snd_soc_add_component_controls(component, wm8960_snd_controls,
1381 ARRAY_SIZE(wm8960_snd_controls));
1382 wm8960_add_widgets(component);
1387 static const struct snd_soc_component_driver soc_component_dev_wm8960 = {
1388 .probe = wm8960_probe,
1389 .set_bias_level = wm8960_set_bias_level,
1390 .suspend_bias_off = 1,
1392 .use_pmdown_time = 1,
1396 static const struct regmap_config wm8960_regmap = {
1399 .max_register = WM8960_PLL4,
1401 .reg_defaults = wm8960_reg_defaults,
1402 .num_reg_defaults = ARRAY_SIZE(wm8960_reg_defaults),
1403 .cache_type = REGCACHE_MAPLE,
1405 .volatile_reg = wm8960_volatile,
1408 static void wm8960_set_pdata_from_of(struct i2c_client *i2c,
1409 struct wm8960_data *pdata)
1411 const struct device_node *np = i2c->dev.of_node;
1413 if (of_property_read_bool(np, "wlf,capless"))
1414 pdata->capless = true;
1416 if (of_property_read_bool(np, "wlf,shared-lrclk"))
1417 pdata->shared_lrclk = true;
1419 of_property_read_u32_array(np, "wlf,gpio-cfg", pdata->gpio_cfg,
1420 ARRAY_SIZE(pdata->gpio_cfg));
1422 of_property_read_u32_array(np, "wlf,hp-cfg", pdata->hp_cfg,
1423 ARRAY_SIZE(pdata->hp_cfg));
1426 static int wm8960_i2c_probe(struct i2c_client *i2c)
1428 struct wm8960_data *pdata = dev_get_platdata(&i2c->dev);
1429 struct wm8960_priv *wm8960;
1434 wm8960 = devm_kzalloc(&i2c->dev, sizeof(struct wm8960_priv),
1439 wm8960->mclk = devm_clk_get(&i2c->dev, "mclk");
1440 if (IS_ERR(wm8960->mclk)) {
1441 if (PTR_ERR(wm8960->mclk) == -EPROBE_DEFER)
1442 return -EPROBE_DEFER;
1444 ret = clk_get_rate(wm8960->mclk);
1446 wm8960->freq_in = ret;
1448 dev_err(&i2c->dev, "Failed to read MCLK rate: %d\n",
1453 for (i = 0; i < ARRAY_SIZE(wm8960->supplies); i++)
1454 wm8960->supplies[i].supply = wm8960_supply_names[i];
1456 ret = devm_regulator_bulk_get(&i2c->dev, ARRAY_SIZE(wm8960->supplies),
1459 dev_err(&i2c->dev, "Failed to request supplies: %d\n", ret);
1463 ret = regulator_bulk_enable(ARRAY_SIZE(wm8960->supplies),
1466 dev_err(&i2c->dev, "Failed to enable supplies: %d\n", ret);
1470 wm8960->regmap = devm_regmap_init_i2c(i2c, &wm8960_regmap);
1471 if (IS_ERR(wm8960->regmap))
1472 return PTR_ERR(wm8960->regmap);
1475 memcpy(&wm8960->pdata, pdata, sizeof(struct wm8960_data));
1476 else if (i2c->dev.of_node)
1477 wm8960_set_pdata_from_of(i2c, &wm8960->pdata);
1479 ret = i2c_master_recv(i2c, &val, sizeof(val));
1481 dev_err(&i2c->dev, "Not wm8960, wm8960 reg can not read by i2c\n");
1485 ret = wm8960_reset(wm8960->regmap);
1487 dev_err(&i2c->dev, "Failed to issue reset\n");
1491 if (wm8960->pdata.shared_lrclk) {
1492 ret = regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2,
1495 dev_err(&i2c->dev, "Failed to enable LRCM: %d\n",
1501 /* Latch the update bits */
1502 regmap_update_bits(wm8960->regmap, WM8960_LINVOL, 0x100, 0x100);
1503 regmap_update_bits(wm8960->regmap, WM8960_RINVOL, 0x100, 0x100);
1504 regmap_update_bits(wm8960->regmap, WM8960_LADC, 0x100, 0x100);
1505 regmap_update_bits(wm8960->regmap, WM8960_RADC, 0x100, 0x100);
1506 regmap_update_bits(wm8960->regmap, WM8960_LDAC, 0x100, 0x100);
1507 regmap_update_bits(wm8960->regmap, WM8960_RDAC, 0x100, 0x100);
1508 regmap_update_bits(wm8960->regmap, WM8960_LOUT1, 0x100, 0x100);
1509 regmap_update_bits(wm8960->regmap, WM8960_ROUT1, 0x100, 0x100);
1510 regmap_update_bits(wm8960->regmap, WM8960_LOUT2, 0x100, 0x100);
1511 regmap_update_bits(wm8960->regmap, WM8960_ROUT2, 0x100, 0x100);
1513 /* ADCLRC pin configured as GPIO. */
1514 regmap_update_bits(wm8960->regmap, WM8960_IFACE2, 1 << 6,
1515 wm8960->pdata.gpio_cfg[0] << 6);
1516 regmap_update_bits(wm8960->regmap, WM8960_ADDCTL4, 0xF << 4,
1517 wm8960->pdata.gpio_cfg[1] << 4);
1519 /* Enable headphone jack detect */
1520 regmap_update_bits(wm8960->regmap, WM8960_ADDCTL4, 3 << 2,
1521 wm8960->pdata.hp_cfg[0] << 2);
1522 regmap_update_bits(wm8960->regmap, WM8960_ADDCTL2, 3 << 5,
1523 wm8960->pdata.hp_cfg[1] << 5);
1524 regmap_update_bits(wm8960->regmap, WM8960_ADDCTL1, 3,
1525 wm8960->pdata.hp_cfg[2]);
1527 i2c_set_clientdata(i2c, wm8960);
1529 ret = devm_snd_soc_register_component(&i2c->dev,
1530 &soc_component_dev_wm8960, &wm8960_dai, 1);
1535 static void wm8960_i2c_remove(struct i2c_client *client)
1537 struct wm8960_priv *wm8960 = i2c_get_clientdata(client);
1539 regulator_bulk_disable(ARRAY_SIZE(wm8960->supplies), wm8960->supplies);
1542 static const struct i2c_device_id wm8960_i2c_id[] = {
1546 MODULE_DEVICE_TABLE(i2c, wm8960_i2c_id);
1548 #if defined(CONFIG_OF)
1549 static const struct of_device_id wm8960_of_match[] = {
1550 { .compatible = "wlf,wm8960", },
1553 MODULE_DEVICE_TABLE(of, wm8960_of_match);
1556 #if defined(CONFIG_ACPI)
1557 static const struct acpi_device_id wm8960_acpi_match[] = {
1558 { "1AEC8960", 0 }, /* Wolfson PCI ID + part ID */
1559 { "10138960", 0 }, /* Cirrus Logic PCI ID + part ID */
1562 MODULE_DEVICE_TABLE(acpi, wm8960_acpi_match);
1565 static struct i2c_driver wm8960_i2c_driver = {
1568 .of_match_table = of_match_ptr(wm8960_of_match),
1569 .acpi_match_table = ACPI_PTR(wm8960_acpi_match),
1571 .probe = wm8960_i2c_probe,
1572 .remove = wm8960_i2c_remove,
1573 .id_table = wm8960_i2c_id,
1576 module_i2c_driver(wm8960_i2c_driver);
1578 MODULE_DESCRIPTION("ASoC WM8960 driver");
1579 MODULE_AUTHOR("Liam Girdwood");
1580 MODULE_LICENSE("GPL");