1 // SPDX-License-Identifier: GPL-2.0-only
3 * wm8750.c -- WM8750 ALSA SoC audio driver
5 * Copyright 2005 Openedhand Ltd.
12 #include <linux/module.h>
13 #include <linux/moduleparam.h>
14 #include <linux/init.h>
15 #include <linux/delay.h>
17 #include <linux/i2c.h>
18 #include <linux/regmap.h>
19 #include <linux/spi/spi.h>
20 #include <linux/slab.h>
21 #include <linux/of_device.h>
22 #include <sound/core.h>
23 #include <sound/pcm.h>
24 #include <sound/pcm_params.h>
25 #include <sound/soc.h>
26 #include <sound/initval.h>
31 * wm8750 register cache
32 * We can't read the WM8750 register space when we
33 * are using 2 wire for device control, so we cache them instead.
35 static const struct reg_default wm8750_reg_defaults[] = {
81 /* codec private data */
86 #define wm8750_reset(c) snd_soc_component_write(c, WM8750_RESET, 0)
91 static const char *wm8750_bass[] = {"Linear Control", "Adaptive Boost"};
92 static const char *wm8750_bass_filter[] = { "130Hz @ 48kHz", "200Hz @ 48kHz" };
93 static const char *wm8750_treble[] = {"8kHz", "4kHz"};
94 static const char *wm8750_3d_lc[] = {"200Hz", "500Hz"};
95 static const char *wm8750_3d_uc[] = {"2.2kHz", "1.5kHz"};
96 static const char *wm8750_3d_func[] = {"Capture", "Playback"};
97 static const char *wm8750_alc_func[] = {"Off", "Right", "Left", "Stereo"};
98 static const char *wm8750_ng_type[] = {"Constant PGA Gain",
100 static const char *wm8750_line_mux[] = {"Line 1", "Line 2", "Line 3", "PGA",
102 static const char *wm8750_pga_sel[] = {"Line 1", "Line 2", "Line 3",
104 static const char *wm8750_out3[] = {"VREF", "ROUT1 + Vol", "MonoOut",
106 static const char *wm8750_diff_sel[] = {"Line 1", "Line 2"};
107 static const char *wm8750_adcpol[] = {"Normal", "L Invert", "R Invert",
109 static const char *wm8750_deemph[] = {"None", "32Khz", "44.1Khz", "48Khz"};
110 static const char *wm8750_mono_mux[] = {"Stereo", "Mono (Left)",
111 "Mono (Right)", "Digital Mono"};
113 static const struct soc_enum wm8750_enum[] = {
114 SOC_ENUM_SINGLE(WM8750_BASS, 7, 2, wm8750_bass),
115 SOC_ENUM_SINGLE(WM8750_BASS, 6, 2, wm8750_bass_filter),
116 SOC_ENUM_SINGLE(WM8750_TREBLE, 6, 2, wm8750_treble),
117 SOC_ENUM_SINGLE(WM8750_3D, 5, 2, wm8750_3d_lc),
118 SOC_ENUM_SINGLE(WM8750_3D, 6, 2, wm8750_3d_uc),
119 SOC_ENUM_SINGLE(WM8750_3D, 7, 2, wm8750_3d_func),
120 SOC_ENUM_SINGLE(WM8750_ALC1, 7, 4, wm8750_alc_func),
121 SOC_ENUM_SINGLE(WM8750_NGATE, 1, 2, wm8750_ng_type),
122 SOC_ENUM_SINGLE(WM8750_LOUTM1, 0, 5, wm8750_line_mux),
123 SOC_ENUM_SINGLE(WM8750_ROUTM1, 0, 5, wm8750_line_mux),
124 SOC_ENUM_SINGLE(WM8750_LADCIN, 6, 4, wm8750_pga_sel), /* 10 */
125 SOC_ENUM_SINGLE(WM8750_RADCIN, 6, 4, wm8750_pga_sel),
126 SOC_ENUM_SINGLE(WM8750_ADCTL2, 7, 4, wm8750_out3),
127 SOC_ENUM_SINGLE(WM8750_ADCIN, 8, 2, wm8750_diff_sel),
128 SOC_ENUM_SINGLE(WM8750_ADCDAC, 5, 4, wm8750_adcpol),
129 SOC_ENUM_SINGLE(WM8750_ADCDAC, 1, 4, wm8750_deemph),
130 SOC_ENUM_SINGLE(WM8750_ADCIN, 6, 4, wm8750_mono_mux), /* 16 */
134 static const struct snd_kcontrol_new wm8750_snd_controls[] = {
136 SOC_DOUBLE_R("Capture Volume", WM8750_LINVOL, WM8750_RINVOL, 0, 63, 0),
137 SOC_DOUBLE_R("Capture ZC Switch", WM8750_LINVOL, WM8750_RINVOL, 6, 1, 0),
138 SOC_DOUBLE_R("Capture Switch", WM8750_LINVOL, WM8750_RINVOL, 7, 1, 1),
140 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8750_LOUT1V,
141 WM8750_ROUT1V, 7, 1, 0),
142 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8750_LOUT2V,
143 WM8750_ROUT2V, 7, 1, 0),
145 SOC_ENUM("Playback De-emphasis", wm8750_enum[15]),
147 SOC_ENUM("Capture Polarity", wm8750_enum[14]),
148 SOC_SINGLE("Playback 6dB Attenuate", WM8750_ADCDAC, 7, 1, 0),
149 SOC_SINGLE("Capture 6dB Attenuate", WM8750_ADCDAC, 8, 1, 0),
151 SOC_DOUBLE_R("PCM Volume", WM8750_LDAC, WM8750_RDAC, 0, 255, 0),
153 SOC_ENUM("Bass Boost", wm8750_enum[0]),
154 SOC_ENUM("Bass Filter", wm8750_enum[1]),
155 SOC_SINGLE("Bass Volume", WM8750_BASS, 0, 15, 1),
157 SOC_SINGLE("Treble Volume", WM8750_TREBLE, 0, 15, 1),
158 SOC_ENUM("Treble Cut-off", wm8750_enum[2]),
160 SOC_SINGLE("3D Switch", WM8750_3D, 0, 1, 0),
161 SOC_SINGLE("3D Volume", WM8750_3D, 1, 15, 0),
162 SOC_ENUM("3D Lower Cut-off", wm8750_enum[3]),
163 SOC_ENUM("3D Upper Cut-off", wm8750_enum[4]),
164 SOC_ENUM("3D Mode", wm8750_enum[5]),
166 SOC_SINGLE("ALC Capture Target Volume", WM8750_ALC1, 0, 7, 0),
167 SOC_SINGLE("ALC Capture Max Volume", WM8750_ALC1, 4, 7, 0),
168 SOC_ENUM("ALC Capture Function", wm8750_enum[6]),
169 SOC_SINGLE("ALC Capture ZC Switch", WM8750_ALC2, 7, 1, 0),
170 SOC_SINGLE("ALC Capture Hold Time", WM8750_ALC2, 0, 15, 0),
171 SOC_SINGLE("ALC Capture Decay Time", WM8750_ALC3, 4, 15, 0),
172 SOC_SINGLE("ALC Capture Attack Time", WM8750_ALC3, 0, 15, 0),
173 SOC_SINGLE("ALC Capture NG Threshold", WM8750_NGATE, 3, 31, 0),
174 SOC_ENUM("ALC Capture NG Type", wm8750_enum[4]),
175 SOC_SINGLE("ALC Capture NG Switch", WM8750_NGATE, 0, 1, 0),
177 SOC_SINGLE("Left ADC Capture Volume", WM8750_LADC, 0, 255, 0),
178 SOC_SINGLE("Right ADC Capture Volume", WM8750_RADC, 0, 255, 0),
180 SOC_SINGLE("ZC Timeout Switch", WM8750_ADCTL1, 0, 1, 0),
181 SOC_SINGLE("Playback Invert Switch", WM8750_ADCTL1, 1, 1, 0),
183 SOC_SINGLE("Right Speaker Playback Invert Switch", WM8750_ADCTL2, 4, 1, 0),
186 /* ADCDAC Bit 0 - ADCHPD */
187 /* ADCDAC Bit 4 - HPOR */
188 /* ADCTL1 Bit 2,3 - DATSEL */
189 /* ADCTL1 Bit 4,5 - DMONOMIX */
190 /* ADCTL1 Bit 6,7 - VSEL */
191 /* ADCTL2 Bit 2 - LRCM */
192 /* ADCTL2 Bit 3 - TRI */
193 /* ADCTL3 Bit 5 - HPFLREN */
194 /* ADCTL3 Bit 6 - VROI */
195 /* ADCTL3 Bit 7,8 - ADCLRM */
196 /* ADCIN Bit 4 - LDCM */
197 /* ADCIN Bit 5 - RDCM */
199 SOC_DOUBLE_R("Mic Boost", WM8750_LADCIN, WM8750_RADCIN, 4, 3, 0),
201 SOC_DOUBLE_R("Bypass Left Playback Volume", WM8750_LOUTM1,
202 WM8750_LOUTM2, 4, 7, 1),
203 SOC_DOUBLE_R("Bypass Right Playback Volume", WM8750_ROUTM1,
204 WM8750_ROUTM2, 4, 7, 1),
205 SOC_DOUBLE_R("Bypass Mono Playback Volume", WM8750_MOUTM1,
206 WM8750_MOUTM2, 4, 7, 1),
208 SOC_SINGLE("Mono Playback ZC Switch", WM8750_MOUTV, 7, 1, 0),
210 SOC_DOUBLE_R("Headphone Playback Volume", WM8750_LOUT1V, WM8750_ROUT1V,
212 SOC_DOUBLE_R("Speaker Playback Volume", WM8750_LOUT2V, WM8750_ROUT2V,
215 SOC_SINGLE("Mono Playback Volume", WM8750_MOUTV, 0, 127, 0),
224 static const struct snd_kcontrol_new wm8750_left_mixer_controls[] = {
225 SOC_DAPM_SINGLE("Playback Switch", WM8750_LOUTM1, 8, 1, 0),
226 SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_LOUTM1, 7, 1, 0),
227 SOC_DAPM_SINGLE("Right Playback Switch", WM8750_LOUTM2, 8, 1, 0),
228 SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_LOUTM2, 7, 1, 0),
232 static const struct snd_kcontrol_new wm8750_right_mixer_controls[] = {
233 SOC_DAPM_SINGLE("Left Playback Switch", WM8750_ROUTM1, 8, 1, 0),
234 SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_ROUTM1, 7, 1, 0),
235 SOC_DAPM_SINGLE("Playback Switch", WM8750_ROUTM2, 8, 1, 0),
236 SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_ROUTM2, 7, 1, 0),
240 static const struct snd_kcontrol_new wm8750_mono_mixer_controls[] = {
241 SOC_DAPM_SINGLE("Left Playback Switch", WM8750_MOUTM1, 8, 1, 0),
242 SOC_DAPM_SINGLE("Left Bypass Switch", WM8750_MOUTM1, 7, 1, 0),
243 SOC_DAPM_SINGLE("Right Playback Switch", WM8750_MOUTM2, 8, 1, 0),
244 SOC_DAPM_SINGLE("Right Bypass Switch", WM8750_MOUTM2, 7, 1, 0),
248 static const struct snd_kcontrol_new wm8750_left_line_controls =
249 SOC_DAPM_ENUM("Route", wm8750_enum[8]);
252 static const struct snd_kcontrol_new wm8750_right_line_controls =
253 SOC_DAPM_ENUM("Route", wm8750_enum[9]);
256 static const struct snd_kcontrol_new wm8750_left_pga_controls =
257 SOC_DAPM_ENUM("Route", wm8750_enum[10]);
260 static const struct snd_kcontrol_new wm8750_right_pga_controls =
261 SOC_DAPM_ENUM("Route", wm8750_enum[11]);
264 static const struct snd_kcontrol_new wm8750_out3_controls =
265 SOC_DAPM_ENUM("Route", wm8750_enum[12]);
267 /* Differential Mux */
268 static const struct snd_kcontrol_new wm8750_diffmux_controls =
269 SOC_DAPM_ENUM("Route", wm8750_enum[13]);
272 static const struct snd_kcontrol_new wm8750_monomux_controls =
273 SOC_DAPM_ENUM("Route", wm8750_enum[16]);
275 static const struct snd_soc_dapm_widget wm8750_dapm_widgets[] = {
276 SND_SOC_DAPM_MIXER("Left Mixer", SND_SOC_NOPM, 0, 0,
277 &wm8750_left_mixer_controls[0],
278 ARRAY_SIZE(wm8750_left_mixer_controls)),
279 SND_SOC_DAPM_MIXER("Right Mixer", SND_SOC_NOPM, 0, 0,
280 &wm8750_right_mixer_controls[0],
281 ARRAY_SIZE(wm8750_right_mixer_controls)),
282 SND_SOC_DAPM_MIXER("Mono Mixer", WM8750_PWR2, 2, 0,
283 &wm8750_mono_mixer_controls[0],
284 ARRAY_SIZE(wm8750_mono_mixer_controls)),
286 SND_SOC_DAPM_PGA("Right Out 2", WM8750_PWR2, 3, 0, NULL, 0),
287 SND_SOC_DAPM_PGA("Left Out 2", WM8750_PWR2, 4, 0, NULL, 0),
288 SND_SOC_DAPM_PGA("Right Out 1", WM8750_PWR2, 5, 0, NULL, 0),
289 SND_SOC_DAPM_PGA("Left Out 1", WM8750_PWR2, 6, 0, NULL, 0),
290 SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8750_PWR2, 7, 0),
291 SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8750_PWR2, 8, 0),
293 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8750_PWR1, 1, 0),
294 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8750_PWR1, 2, 0),
295 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8750_PWR1, 3, 0),
297 SND_SOC_DAPM_MUX("Left PGA Mux", WM8750_PWR1, 5, 0,
298 &wm8750_left_pga_controls),
299 SND_SOC_DAPM_MUX("Right PGA Mux", WM8750_PWR1, 4, 0,
300 &wm8750_right_pga_controls),
301 SND_SOC_DAPM_MUX("Left Line Mux", SND_SOC_NOPM, 0, 0,
302 &wm8750_left_line_controls),
303 SND_SOC_DAPM_MUX("Right Line Mux", SND_SOC_NOPM, 0, 0,
304 &wm8750_right_line_controls),
306 SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8750_out3_controls),
307 SND_SOC_DAPM_PGA("Out 3", WM8750_PWR2, 1, 0, NULL, 0),
308 SND_SOC_DAPM_PGA("Mono Out 1", WM8750_PWR2, 2, 0, NULL, 0),
310 SND_SOC_DAPM_MUX("Differential Mux", SND_SOC_NOPM, 0, 0,
311 &wm8750_diffmux_controls),
312 SND_SOC_DAPM_MUX("Left ADC Mux", SND_SOC_NOPM, 0, 0,
313 &wm8750_monomux_controls),
314 SND_SOC_DAPM_MUX("Right ADC Mux", SND_SOC_NOPM, 0, 0,
315 &wm8750_monomux_controls),
317 SND_SOC_DAPM_OUTPUT("LOUT1"),
318 SND_SOC_DAPM_OUTPUT("ROUT1"),
319 SND_SOC_DAPM_OUTPUT("LOUT2"),
320 SND_SOC_DAPM_OUTPUT("ROUT2"),
321 SND_SOC_DAPM_OUTPUT("MONO1"),
322 SND_SOC_DAPM_OUTPUT("OUT3"),
323 SND_SOC_DAPM_VMID("VREF"),
325 SND_SOC_DAPM_INPUT("LINPUT1"),
326 SND_SOC_DAPM_INPUT("LINPUT2"),
327 SND_SOC_DAPM_INPUT("LINPUT3"),
328 SND_SOC_DAPM_INPUT("RINPUT1"),
329 SND_SOC_DAPM_INPUT("RINPUT2"),
330 SND_SOC_DAPM_INPUT("RINPUT3"),
333 static const struct snd_soc_dapm_route wm8750_dapm_routes[] = {
335 {"Left Mixer", "Playback Switch", "Left DAC"},
336 {"Left Mixer", "Left Bypass Switch", "Left Line Mux"},
337 {"Left Mixer", "Right Playback Switch", "Right DAC"},
338 {"Left Mixer", "Right Bypass Switch", "Right Line Mux"},
341 {"Right Mixer", "Left Playback Switch", "Left DAC"},
342 {"Right Mixer", "Left Bypass Switch", "Left Line Mux"},
343 {"Right Mixer", "Playback Switch", "Right DAC"},
344 {"Right Mixer", "Right Bypass Switch", "Right Line Mux"},
347 {"Left Out 1", NULL, "Left Mixer"},
348 {"LOUT1", NULL, "Left Out 1"},
351 {"Left Out 2", NULL, "Left Mixer"},
352 {"LOUT2", NULL, "Left Out 2"},
355 {"Right Out 1", NULL, "Right Mixer"},
356 {"ROUT1", NULL, "Right Out 1"},
359 {"Right Out 2", NULL, "Right Mixer"},
360 {"ROUT2", NULL, "Right Out 2"},
363 {"Mono Mixer", "Left Playback Switch", "Left DAC"},
364 {"Mono Mixer", "Left Bypass Switch", "Left Line Mux"},
365 {"Mono Mixer", "Right Playback Switch", "Right DAC"},
366 {"Mono Mixer", "Right Bypass Switch", "Right Line Mux"},
369 {"Mono Out 1", NULL, "Mono Mixer"},
370 {"MONO1", NULL, "Mono Out 1"},
373 {"Out3 Mux", "VREF", "VREF"},
374 {"Out3 Mux", "ROUT1 + Vol", "ROUT1"},
375 {"Out3 Mux", "ROUT1", "Right Mixer"},
376 {"Out3 Mux", "MonoOut", "MONO1"},
377 {"Out 3", NULL, "Out3 Mux"},
378 {"OUT3", NULL, "Out 3"},
381 {"Left Line Mux", "Line 1", "LINPUT1"},
382 {"Left Line Mux", "Line 2", "LINPUT2"},
383 {"Left Line Mux", "Line 3", "LINPUT3"},
384 {"Left Line Mux", "PGA", "Left PGA Mux"},
385 {"Left Line Mux", "Differential", "Differential Mux"},
388 {"Right Line Mux", "Line 1", "RINPUT1"},
389 {"Right Line Mux", "Line 2", "RINPUT2"},
390 {"Right Line Mux", "Line 3", "RINPUT3"},
391 {"Right Line Mux", "PGA", "Right PGA Mux"},
392 {"Right Line Mux", "Differential", "Differential Mux"},
395 {"Left PGA Mux", "Line 1", "LINPUT1"},
396 {"Left PGA Mux", "Line 2", "LINPUT2"},
397 {"Left PGA Mux", "Line 3", "LINPUT3"},
398 {"Left PGA Mux", "Differential", "Differential Mux"},
401 {"Right PGA Mux", "Line 1", "RINPUT1"},
402 {"Right PGA Mux", "Line 2", "RINPUT2"},
403 {"Right PGA Mux", "Line 3", "RINPUT3"},
404 {"Right PGA Mux", "Differential", "Differential Mux"},
406 /* Differential Mux */
407 {"Differential Mux", "Line 1", "LINPUT1"},
408 {"Differential Mux", "Line 1", "RINPUT1"},
409 {"Differential Mux", "Line 2", "LINPUT2"},
410 {"Differential Mux", "Line 2", "RINPUT2"},
413 {"Left ADC Mux", "Stereo", "Left PGA Mux"},
414 {"Left ADC Mux", "Mono (Left)", "Left PGA Mux"},
415 {"Left ADC Mux", "Digital Mono", "Left PGA Mux"},
418 {"Right ADC Mux", "Stereo", "Right PGA Mux"},
419 {"Right ADC Mux", "Mono (Right)", "Right PGA Mux"},
420 {"Right ADC Mux", "Digital Mono", "Right PGA Mux"},
423 {"Left ADC", NULL, "Left ADC Mux"},
424 {"Right ADC", NULL, "Right ADC Mux"},
435 /* codec hifi mclk clock divider coefficients */
436 static const struct _coeff_div coeff_div[] = {
438 {12288000, 8000, 1536, 0x6, 0x0},
439 {11289600, 8000, 1408, 0x16, 0x0},
440 {18432000, 8000, 2304, 0x7, 0x0},
441 {16934400, 8000, 2112, 0x17, 0x0},
442 {12000000, 8000, 1500, 0x6, 0x1},
445 {11289600, 11025, 1024, 0x18, 0x0},
446 {16934400, 11025, 1536, 0x19, 0x0},
447 {12000000, 11025, 1088, 0x19, 0x1},
450 {12288000, 16000, 768, 0xa, 0x0},
451 {18432000, 16000, 1152, 0xb, 0x0},
452 {12000000, 16000, 750, 0xa, 0x1},
455 {11289600, 22050, 512, 0x1a, 0x0},
456 {16934400, 22050, 768, 0x1b, 0x0},
457 {12000000, 22050, 544, 0x1b, 0x1},
460 {12288000, 32000, 384, 0xc, 0x0},
461 {18432000, 32000, 576, 0xd, 0x0},
462 {12000000, 32000, 375, 0xa, 0x1},
465 {11289600, 44100, 256, 0x10, 0x0},
466 {16934400, 44100, 384, 0x11, 0x0},
467 {12000000, 44100, 272, 0x11, 0x1},
470 {12288000, 48000, 256, 0x0, 0x0},
471 {18432000, 48000, 384, 0x1, 0x0},
472 {12000000, 48000, 250, 0x0, 0x1},
475 {11289600, 88200, 128, 0x1e, 0x0},
476 {16934400, 88200, 192, 0x1f, 0x0},
477 {12000000, 88200, 136, 0x1f, 0x1},
480 {12288000, 96000, 128, 0xe, 0x0},
481 {18432000, 96000, 192, 0xf, 0x0},
482 {12000000, 96000, 125, 0xe, 0x1},
485 static inline int get_coeff(int mclk, int rate)
489 for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
490 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
494 printk(KERN_ERR "wm8750: could not get coeff for mclk %d @ rate %d\n",
499 static int wm8750_set_dai_sysclk(struct snd_soc_dai *codec_dai,
500 int clk_id, unsigned int freq, int dir)
502 struct snd_soc_component *component = codec_dai->component;
503 struct wm8750_priv *wm8750 = snd_soc_component_get_drvdata(component);
511 wm8750->sysclk = freq;
517 static int wm8750_set_dai_fmt(struct snd_soc_dai *codec_dai,
520 struct snd_soc_component *component = codec_dai->component;
523 /* set master/slave audio interface */
524 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
525 case SND_SOC_DAIFMT_CBM_CFM:
528 case SND_SOC_DAIFMT_CBS_CFS:
534 /* interface format */
535 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
536 case SND_SOC_DAIFMT_I2S:
539 case SND_SOC_DAIFMT_RIGHT_J:
541 case SND_SOC_DAIFMT_LEFT_J:
544 case SND_SOC_DAIFMT_DSP_A:
547 case SND_SOC_DAIFMT_DSP_B:
554 /* clock inversion */
555 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
556 case SND_SOC_DAIFMT_NB_NF:
558 case SND_SOC_DAIFMT_IB_IF:
561 case SND_SOC_DAIFMT_IB_NF:
564 case SND_SOC_DAIFMT_NB_IF:
571 snd_soc_component_write(component, WM8750_IFACE, iface);
575 static int wm8750_pcm_hw_params(struct snd_pcm_substream *substream,
576 struct snd_pcm_hw_params *params,
577 struct snd_soc_dai *dai)
579 struct snd_soc_component *component = dai->component;
580 struct wm8750_priv *wm8750 = snd_soc_component_get_drvdata(component);
581 u16 iface = snd_soc_component_read(component, WM8750_IFACE) & 0x1f3;
582 u16 srate = snd_soc_component_read(component, WM8750_SRATE) & 0x1c0;
583 int coeff = get_coeff(wm8750->sysclk, params_rate(params));
586 switch (params_width(params)) {
600 /* set iface & srate */
601 snd_soc_component_write(component, WM8750_IFACE, iface);
603 snd_soc_component_write(component, WM8750_SRATE, srate |
604 (coeff_div[coeff].sr << 1) | coeff_div[coeff].usb);
609 static int wm8750_mute(struct snd_soc_dai *dai, int mute, int direction)
611 struct snd_soc_component *component = dai->component;
612 u16 mute_reg = snd_soc_component_read(component, WM8750_ADCDAC) & 0xfff7;
615 snd_soc_component_write(component, WM8750_ADCDAC, mute_reg | 0x8);
617 snd_soc_component_write(component, WM8750_ADCDAC, mute_reg);
621 static int wm8750_set_bias_level(struct snd_soc_component *component,
622 enum snd_soc_bias_level level)
624 u16 pwr_reg = snd_soc_component_read(component, WM8750_PWR1) & 0xfe3e;
627 case SND_SOC_BIAS_ON:
628 /* set vmid to 50k and unmute dac */
629 snd_soc_component_write(component, WM8750_PWR1, pwr_reg | 0x00c0);
631 case SND_SOC_BIAS_PREPARE:
633 case SND_SOC_BIAS_STANDBY:
634 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
635 snd_soc_component_cache_sync(component);
638 snd_soc_component_write(component, WM8750_PWR1, pwr_reg | 0x01c1);
644 /* mute dac and set vmid to 500k, enable VREF */
645 snd_soc_component_write(component, WM8750_PWR1, pwr_reg | 0x0141);
647 case SND_SOC_BIAS_OFF:
648 snd_soc_component_write(component, WM8750_PWR1, 0x0001);
654 #define WM8750_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
655 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \
656 SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
658 #define WM8750_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
659 SNDRV_PCM_FMTBIT_S24_LE)
661 static const struct snd_soc_dai_ops wm8750_dai_ops = {
662 .hw_params = wm8750_pcm_hw_params,
663 .mute_stream = wm8750_mute,
664 .set_fmt = wm8750_set_dai_fmt,
665 .set_sysclk = wm8750_set_dai_sysclk,
666 .no_capture_mute = 1,
669 static struct snd_soc_dai_driver wm8750_dai = {
670 .name = "wm8750-hifi",
672 .stream_name = "Playback",
675 .rates = WM8750_RATES,
676 .formats = WM8750_FORMATS,},
678 .stream_name = "Capture",
681 .rates = WM8750_RATES,
682 .formats = WM8750_FORMATS,},
683 .ops = &wm8750_dai_ops,
686 static int wm8750_probe(struct snd_soc_component *component)
690 ret = wm8750_reset(component);
692 printk(KERN_ERR "wm8750: failed to reset: %d\n", ret);
696 /* set the update bits */
697 snd_soc_component_update_bits(component, WM8750_LDAC, 0x0100, 0x0100);
698 snd_soc_component_update_bits(component, WM8750_RDAC, 0x0100, 0x0100);
699 snd_soc_component_update_bits(component, WM8750_LOUT1V, 0x0100, 0x0100);
700 snd_soc_component_update_bits(component, WM8750_ROUT1V, 0x0100, 0x0100);
701 snd_soc_component_update_bits(component, WM8750_LOUT2V, 0x0100, 0x0100);
702 snd_soc_component_update_bits(component, WM8750_ROUT2V, 0x0100, 0x0100);
703 snd_soc_component_update_bits(component, WM8750_LINVOL, 0x0100, 0x0100);
704 snd_soc_component_update_bits(component, WM8750_RINVOL, 0x0100, 0x0100);
709 static const struct snd_soc_component_driver soc_component_dev_wm8750 = {
710 .probe = wm8750_probe,
711 .set_bias_level = wm8750_set_bias_level,
712 .controls = wm8750_snd_controls,
713 .num_controls = ARRAY_SIZE(wm8750_snd_controls),
714 .dapm_widgets = wm8750_dapm_widgets,
715 .num_dapm_widgets = ARRAY_SIZE(wm8750_dapm_widgets),
716 .dapm_routes = wm8750_dapm_routes,
717 .num_dapm_routes = ARRAY_SIZE(wm8750_dapm_routes),
718 .suspend_bias_off = 1,
720 .use_pmdown_time = 1,
722 .non_legacy_dai_naming = 1,
725 static const struct of_device_id wm8750_of_match[] = {
726 { .compatible = "wlf,wm8750", },
727 { .compatible = "wlf,wm8987", },
730 MODULE_DEVICE_TABLE(of, wm8750_of_match);
732 static const struct regmap_config wm8750_regmap = {
735 .max_register = WM8750_MOUTV,
737 .reg_defaults = wm8750_reg_defaults,
738 .num_reg_defaults = ARRAY_SIZE(wm8750_reg_defaults),
739 .cache_type = REGCACHE_RBTREE,
742 #if defined(CONFIG_SPI_MASTER)
743 static int wm8750_spi_probe(struct spi_device *spi)
745 struct wm8750_priv *wm8750;
746 struct regmap *regmap;
749 wm8750 = devm_kzalloc(&spi->dev, sizeof(struct wm8750_priv),
754 regmap = devm_regmap_init_spi(spi, &wm8750_regmap);
756 return PTR_ERR(regmap);
758 spi_set_drvdata(spi, wm8750);
760 ret = devm_snd_soc_register_component(&spi->dev,
761 &soc_component_dev_wm8750, &wm8750_dai, 1);
765 static const struct spi_device_id wm8750_spi_ids[] = {
770 MODULE_DEVICE_TABLE(spi, wm8750_spi_ids);
772 static struct spi_driver wm8750_spi_driver = {
775 .of_match_table = wm8750_of_match,
777 .id_table = wm8750_spi_ids,
778 .probe = wm8750_spi_probe,
780 #endif /* CONFIG_SPI_MASTER */
782 #if IS_ENABLED(CONFIG_I2C)
783 static int wm8750_i2c_probe(struct i2c_client *i2c)
785 struct wm8750_priv *wm8750;
786 struct regmap *regmap;
789 wm8750 = devm_kzalloc(&i2c->dev, sizeof(struct wm8750_priv),
794 i2c_set_clientdata(i2c, wm8750);
796 regmap = devm_regmap_init_i2c(i2c, &wm8750_regmap);
798 return PTR_ERR(regmap);
800 ret = devm_snd_soc_register_component(&i2c->dev,
801 &soc_component_dev_wm8750, &wm8750_dai, 1);
805 static const struct i2c_device_id wm8750_i2c_id[] = {
810 MODULE_DEVICE_TABLE(i2c, wm8750_i2c_id);
812 static struct i2c_driver wm8750_i2c_driver = {
815 .of_match_table = wm8750_of_match,
817 .probe_new = wm8750_i2c_probe,
818 .id_table = wm8750_i2c_id,
822 static int __init wm8750_modinit(void)
825 #if IS_ENABLED(CONFIG_I2C)
826 ret = i2c_add_driver(&wm8750_i2c_driver);
828 printk(KERN_ERR "Failed to register wm8750 I2C driver: %d\n",
832 #if defined(CONFIG_SPI_MASTER)
833 ret = spi_register_driver(&wm8750_spi_driver);
835 printk(KERN_ERR "Failed to register wm8750 SPI driver: %d\n",
841 module_init(wm8750_modinit);
843 static void __exit wm8750_exit(void)
845 #if IS_ENABLED(CONFIG_I2C)
846 i2c_del_driver(&wm8750_i2c_driver);
848 #if defined(CONFIG_SPI_MASTER)
849 spi_unregister_driver(&wm8750_spi_driver);
852 module_exit(wm8750_exit);
854 MODULE_DESCRIPTION("ASoC WM8750 driver");
855 MODULE_AUTHOR("Liam Girdwood");
856 MODULE_LICENSE("GPL");