2 * wm8753.c -- WM8753 ALSA Soc Audio driver
4 * Copyright 2003 Wolfson Microelectronics PLC.
5 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
7 * This program is free software; you can redistribute it and/or modify it
8 * under the terms of the GNU General Public License as published by the
9 * Free Software Foundation; either version 2 of the License, or (at your
10 * option) any later version.
13 * The WM8753 is a low power, high quality stereo codec with integrated PCM
14 * codec designed for portable digital telephony applications.
18 * This driver support 2 DAI PCM's. This makes the default PCM available for
19 * HiFi audio (e.g. MP3, ogg) playback/capture and the other PCM available for
22 * Please note that the voice PCM can be connected directly to a Bluetooth
23 * codec or GSM modem and thus cannot be read or written to, although it is
24 * available to be configured with snd_hw_params(), etc and kcontrols in the
27 * Fast DAI switching:-
29 * The driver can now fast switch between the DAI configurations via a
30 * an alsa kcontrol. This allows the PCM to remain open.
34 #include <linux/module.h>
35 #include <linux/moduleparam.h>
36 #include <linux/kernel.h>
37 #include <linux/init.h>
38 #include <linux/delay.h>
40 #include <linux/i2c.h>
41 #include <linux/platform_device.h>
42 #include <linux/spi/spi.h>
43 #include <sound/core.h>
44 #include <sound/pcm.h>
45 #include <sound/pcm_params.h>
46 #include <sound/soc.h>
47 #include <sound/soc-dapm.h>
48 #include <sound/initval.h>
49 #include <sound/tlv.h>
50 #include <asm/div64.h>
54 #ifdef CONFIG_SPI_MASTER
55 static struct spi_driver wm8753_spi_driver;
56 static int wm8753_spi_write(struct spi_device *spi, const char *data, int len);
59 static int caps_charge = 2000;
60 module_param(caps_charge, int, 0);
61 MODULE_PARM_DESC(caps_charge, "WM8753 cap charge time (msecs)");
63 static void wm8753_set_dai_mode(struct snd_soc_codec *codec,
66 /* codec private data */
73 * wm8753 register cache
74 * We can't read the WM8753 register space when we
75 * are using 2 wire for device control, so we cache them instead.
77 static const u16 wm8753_reg[] = {
78 0x0008, 0x0000, 0x000a, 0x000a,
79 0x0033, 0x0000, 0x0007, 0x00ff,
80 0x00ff, 0x000f, 0x000f, 0x007b,
81 0x0000, 0x0032, 0x0000, 0x00c3,
82 0x00c3, 0x00c0, 0x0000, 0x0000,
83 0x0000, 0x0000, 0x0000, 0x0000,
84 0x0000, 0x0000, 0x0000, 0x0000,
85 0x0000, 0x0000, 0x0000, 0x0055,
86 0x0005, 0x0050, 0x0055, 0x0050,
87 0x0055, 0x0050, 0x0055, 0x0079,
88 0x0079, 0x0079, 0x0079, 0x0079,
89 0x0000, 0x0000, 0x0000, 0x0000,
90 0x0097, 0x0097, 0x0000, 0x0004,
91 0x0000, 0x0083, 0x0024, 0x01ba,
92 0x0000, 0x0083, 0x0024, 0x01ba,
97 * read wm8753 register cache
99 static inline unsigned int wm8753_read_reg_cache(struct snd_soc_codec *codec,
102 u16 *cache = codec->reg_cache;
103 if (reg < 1 || reg >= (ARRAY_SIZE(wm8753_reg) + 1))
105 return cache[reg - 1];
109 * write wm8753 register cache
111 static inline void wm8753_write_reg_cache(struct snd_soc_codec *codec,
112 unsigned int reg, unsigned int value)
114 u16 *cache = codec->reg_cache;
115 if (reg < 1 || reg >= (ARRAY_SIZE(wm8753_reg) + 1))
117 cache[reg - 1] = value;
121 * write to the WM8753 register space
123 static int wm8753_write(struct snd_soc_codec *codec, unsigned int reg,
129 * D15..D9 WM8753 register offset
130 * D8...D0 register data
132 data[0] = (reg << 1) | ((value >> 8) & 0x0001);
133 data[1] = value & 0x00ff;
135 wm8753_write_reg_cache(codec, reg, value);
136 if (codec->hw_write(codec->control_data, data, 2) == 2)
142 #define wm8753_reset(c) wm8753_write(c, WM8753_RESET, 0)
147 static const char *wm8753_base[] = {"Linear Control", "Adaptive Boost"};
148 static const char *wm8753_base_filter[] =
149 {"130Hz @ 48kHz", "200Hz @ 48kHz", "100Hz @ 16kHz", "400Hz @ 48kHz",
150 "100Hz @ 8kHz", "200Hz @ 8kHz"};
151 static const char *wm8753_treble[] = {"8kHz", "4kHz"};
152 static const char *wm8753_alc_func[] = {"Off", "Right", "Left", "Stereo"};
153 static const char *wm8753_ng_type[] = {"Constant PGA Gain", "Mute ADC Output"};
154 static const char *wm8753_3d_func[] = {"Capture", "Playback"};
155 static const char *wm8753_3d_uc[] = {"2.2kHz", "1.5kHz"};
156 static const char *wm8753_3d_lc[] = {"200Hz", "500Hz"};
157 static const char *wm8753_deemp[] = {"None", "32kHz", "44.1kHz", "48kHz"};
158 static const char *wm8753_mono_mix[] = {"Stereo", "Left", "Right", "Mono"};
159 static const char *wm8753_dac_phase[] = {"Non Inverted", "Inverted"};
160 static const char *wm8753_line_mix[] = {"Line 1 + 2", "Line 1 - 2",
162 static const char *wm8753_mono_mux[] = {"Line Mix", "Rx Mix"};
163 static const char *wm8753_right_mux[] = {"Line 2", "Rx Mix"};
164 static const char *wm8753_left_mux[] = {"Line 1", "Rx Mix"};
165 static const char *wm8753_rxmsel[] = {"RXP - RXN", "RXP + RXN", "RXP", "RXN"};
166 static const char *wm8753_sidetone_mux[] = {"Left PGA", "Mic 1", "Mic 2",
168 static const char *wm8753_mono2_src[] = {"Inverted Mono 1", "Left", "Right",
170 static const char *wm8753_out3[] = {"VREF", "ROUT2", "Left + Right"};
171 static const char *wm8753_out4[] = {"VREF", "Capture ST", "LOUT2"};
172 static const char *wm8753_radcsel[] = {"PGA", "Line or RXP-RXN", "Sidetone"};
173 static const char *wm8753_ladcsel[] = {"PGA", "Line or RXP-RXN", "Line"};
174 static const char *wm8753_mono_adc[] = {"Stereo", "Analogue Mix Left",
175 "Analogue Mix Right", "Digital Mono Mix"};
176 static const char *wm8753_adc_hp[] = {"3.4Hz @ 48kHz", "82Hz @ 16k",
177 "82Hz @ 8kHz", "170Hz @ 8kHz"};
178 static const char *wm8753_adc_filter[] = {"HiFi", "Voice"};
179 static const char *wm8753_mic_sel[] = {"Mic 1", "Mic 2", "Mic 3"};
180 static const char *wm8753_dai_mode[] = {"DAI 0", "DAI 1", "DAI 2", "DAI 3"};
181 static const char *wm8753_dat_sel[] = {"Stereo", "Left ADC", "Right ADC",
183 static const char *wm8753_rout2_phase[] = {"Non Inverted", "Inverted"};
185 static const struct soc_enum wm8753_enum[] = {
186 SOC_ENUM_SINGLE(WM8753_BASS, 7, 2, wm8753_base),
187 SOC_ENUM_SINGLE(WM8753_BASS, 4, 6, wm8753_base_filter),
188 SOC_ENUM_SINGLE(WM8753_TREBLE, 6, 2, wm8753_treble),
189 SOC_ENUM_SINGLE(WM8753_ALC1, 7, 4, wm8753_alc_func),
190 SOC_ENUM_SINGLE(WM8753_NGATE, 1, 2, wm8753_ng_type),
191 SOC_ENUM_SINGLE(WM8753_3D, 7, 2, wm8753_3d_func),
192 SOC_ENUM_SINGLE(WM8753_3D, 6, 2, wm8753_3d_uc),
193 SOC_ENUM_SINGLE(WM8753_3D, 5, 2, wm8753_3d_lc),
194 SOC_ENUM_SINGLE(WM8753_DAC, 1, 4, wm8753_deemp),
195 SOC_ENUM_SINGLE(WM8753_DAC, 4, 4, wm8753_mono_mix),
196 SOC_ENUM_SINGLE(WM8753_DAC, 6, 2, wm8753_dac_phase),
197 SOC_ENUM_SINGLE(WM8753_INCTL1, 3, 4, wm8753_line_mix),
198 SOC_ENUM_SINGLE(WM8753_INCTL1, 2, 2, wm8753_mono_mux),
199 SOC_ENUM_SINGLE(WM8753_INCTL1, 1, 2, wm8753_right_mux),
200 SOC_ENUM_SINGLE(WM8753_INCTL1, 0, 2, wm8753_left_mux),
201 SOC_ENUM_SINGLE(WM8753_INCTL2, 6, 4, wm8753_rxmsel),
202 SOC_ENUM_SINGLE(WM8753_INCTL2, 4, 4, wm8753_sidetone_mux),
203 SOC_ENUM_SINGLE(WM8753_OUTCTL, 7, 4, wm8753_mono2_src),
204 SOC_ENUM_SINGLE(WM8753_OUTCTL, 0, 3, wm8753_out3),
205 SOC_ENUM_SINGLE(WM8753_ADCTL2, 7, 3, wm8753_out4),
206 SOC_ENUM_SINGLE(WM8753_ADCIN, 2, 3, wm8753_radcsel),
207 SOC_ENUM_SINGLE(WM8753_ADCIN, 0, 3, wm8753_ladcsel),
208 SOC_ENUM_SINGLE(WM8753_ADCIN, 4, 4, wm8753_mono_adc),
209 SOC_ENUM_SINGLE(WM8753_ADC, 2, 4, wm8753_adc_hp),
210 SOC_ENUM_SINGLE(WM8753_ADC, 4, 2, wm8753_adc_filter),
211 SOC_ENUM_SINGLE(WM8753_MICBIAS, 6, 3, wm8753_mic_sel),
212 SOC_ENUM_SINGLE(WM8753_IOCTL, 2, 4, wm8753_dai_mode),
213 SOC_ENUM_SINGLE(WM8753_ADC, 7, 4, wm8753_dat_sel),
214 SOC_ENUM_SINGLE(WM8753_OUTCTL, 2, 2, wm8753_rout2_phase),
218 static int wm8753_get_dai(struct snd_kcontrol *kcontrol,
219 struct snd_ctl_elem_value *ucontrol)
221 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
222 int mode = wm8753_read_reg_cache(codec, WM8753_IOCTL);
224 ucontrol->value.integer.value[0] = (mode & 0xc) >> 2;
228 static int wm8753_set_dai(struct snd_kcontrol *kcontrol,
229 struct snd_ctl_elem_value *ucontrol)
231 struct snd_soc_codec *codec = snd_kcontrol_chip(kcontrol);
232 int mode = wm8753_read_reg_cache(codec, WM8753_IOCTL);
234 if (((mode & 0xc) >> 2) == ucontrol->value.integer.value[0])
238 mode |= (ucontrol->value.integer.value[0] << 2);
240 wm8753_write(codec, WM8753_IOCTL, mode);
241 wm8753_set_dai_mode(codec, ucontrol->value.integer.value[0]);
245 static const DECLARE_TLV_DB_SCALE(rec_mix_tlv, -1500, 300, 0);
246 static const DECLARE_TLV_DB_SCALE(mic_preamp_tlv, 1200, 600, 0);
247 static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1);
248 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
249 static const unsigned int out_tlv[] = {
250 TLV_DB_RANGE_HEAD(2),
251 /* 0000000 - 0101111 = "Analogue mute" */
252 0, 48, TLV_DB_SCALE_ITEM(-25500, 0, 0),
253 48, 127, TLV_DB_SCALE_ITEM(-7300, 100, 0),
255 static const DECLARE_TLV_DB_SCALE(mix_tlv, -1500, 300, 0);
256 static const DECLARE_TLV_DB_SCALE(voice_mix_tlv, -1200, 300, 0);
257 static const DECLARE_TLV_DB_SCALE(pga_tlv, -1725, 75, 0);
259 static const struct snd_kcontrol_new wm8753_snd_controls[] = {
260 SOC_DOUBLE_R_TLV("PCM Volume", WM8753_LDAC, WM8753_RDAC, 0, 255, 0, dac_tlv),
262 SOC_DOUBLE_R_TLV("ADC Capture Volume", WM8753_LADC, WM8753_RADC, 0, 255, 0,
265 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8753_LOUT1V, WM8753_ROUT1V,
267 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8753_LOUT2V, WM8753_ROUT2V, 0,
270 SOC_SINGLE_TLV("Mono Playback Volume", WM8753_MOUTV, 0, 127, 0, out_tlv),
272 SOC_DOUBLE_R_TLV("Bypass Playback Volume", WM8753_LOUTM1, WM8753_ROUTM1, 4, 7,
274 SOC_DOUBLE_R_TLV("Sidetone Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 4,
276 SOC_DOUBLE_R_TLV("Voice Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 0, 7,
279 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8753_LOUT1V, WM8753_ROUT1V, 7,
281 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8753_LOUT2V, WM8753_ROUT2V, 7,
284 SOC_SINGLE_TLV("Mono Bypass Playback Volume", WM8753_MOUTM1, 4, 7, 1, mix_tlv),
285 SOC_SINGLE_TLV("Mono Sidetone Playback Volume", WM8753_MOUTM2, 4, 7, 1,
287 SOC_SINGLE_TLV("Mono Voice Playback Volume", WM8753_MOUTM2, 0, 7, 1,
289 SOC_SINGLE("Mono Playback ZC Switch", WM8753_MOUTV, 7, 1, 0),
291 SOC_ENUM("Bass Boost", wm8753_enum[0]),
292 SOC_ENUM("Bass Filter", wm8753_enum[1]),
293 SOC_SINGLE("Bass Volume", WM8753_BASS, 0, 15, 1),
295 SOC_SINGLE("Treble Volume", WM8753_TREBLE, 0, 15, 1),
296 SOC_ENUM("Treble Cut-off", wm8753_enum[2]),
298 SOC_DOUBLE_TLV("Sidetone Capture Volume", WM8753_RECMIX1, 0, 4, 7, 1,
300 SOC_SINGLE_TLV("Voice Sidetone Capture Volume", WM8753_RECMIX2, 0, 7, 1,
303 SOC_DOUBLE_R_TLV("Capture Volume", WM8753_LINVOL, WM8753_RINVOL, 0, 63, 0,
305 SOC_DOUBLE_R("Capture ZC Switch", WM8753_LINVOL, WM8753_RINVOL, 6, 1, 0),
306 SOC_DOUBLE_R("Capture Switch", WM8753_LINVOL, WM8753_RINVOL, 7, 1, 1),
308 SOC_ENUM("Capture Filter Select", wm8753_enum[23]),
309 SOC_ENUM("Capture Filter Cut-off", wm8753_enum[24]),
310 SOC_SINGLE("Capture Filter Switch", WM8753_ADC, 0, 1, 1),
312 SOC_SINGLE("ALC Capture Target Volume", WM8753_ALC1, 0, 7, 0),
313 SOC_SINGLE("ALC Capture Max Volume", WM8753_ALC1, 4, 7, 0),
314 SOC_ENUM("ALC Capture Function", wm8753_enum[3]),
315 SOC_SINGLE("ALC Capture ZC Switch", WM8753_ALC2, 8, 1, 0),
316 SOC_SINGLE("ALC Capture Hold Time", WM8753_ALC2, 0, 15, 1),
317 SOC_SINGLE("ALC Capture Decay Time", WM8753_ALC3, 4, 15, 1),
318 SOC_SINGLE("ALC Capture Attack Time", WM8753_ALC3, 0, 15, 0),
319 SOC_SINGLE("ALC Capture NG Threshold", WM8753_NGATE, 3, 31, 0),
320 SOC_ENUM("ALC Capture NG Type", wm8753_enum[4]),
321 SOC_SINGLE("ALC Capture NG Switch", WM8753_NGATE, 0, 1, 0),
323 SOC_ENUM("3D Function", wm8753_enum[5]),
324 SOC_ENUM("3D Upper Cut-off", wm8753_enum[6]),
325 SOC_ENUM("3D Lower Cut-off", wm8753_enum[7]),
326 SOC_SINGLE("3D Volume", WM8753_3D, 1, 15, 0),
327 SOC_SINGLE("3D Switch", WM8753_3D, 0, 1, 0),
329 SOC_SINGLE("Capture 6dB Attenuate", WM8753_ADCTL1, 2, 1, 0),
330 SOC_SINGLE("Playback 6dB Attenuate", WM8753_ADCTL1, 1, 1, 0),
332 SOC_ENUM("De-emphasis", wm8753_enum[8]),
333 SOC_ENUM("Playback Mono Mix", wm8753_enum[9]),
334 SOC_ENUM("Playback Phase", wm8753_enum[10]),
336 SOC_SINGLE_TLV("Mic2 Capture Volume", WM8753_INCTL1, 7, 3, 0, mic_preamp_tlv),
337 SOC_SINGLE_TLV("Mic1 Capture Volume", WM8753_INCTL1, 5, 3, 0, mic_preamp_tlv),
339 SOC_ENUM_EXT("DAI Mode", wm8753_enum[26], wm8753_get_dai, wm8753_set_dai),
341 SOC_ENUM("ADC Data Select", wm8753_enum[27]),
342 SOC_ENUM("ROUT2 Phase", wm8753_enum[28]),
350 static const struct snd_kcontrol_new wm8753_left_mixer_controls[] = {
351 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_LOUTM2, 8, 1, 0),
352 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_LOUTM2, 7, 1, 0),
353 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_LOUTM1, 8, 1, 0),
354 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_LOUTM1, 7, 1, 0),
358 static const struct snd_kcontrol_new wm8753_right_mixer_controls[] = {
359 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_ROUTM2, 8, 1, 0),
360 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_ROUTM2, 7, 1, 0),
361 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_ROUTM1, 8, 1, 0),
362 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_ROUTM1, 7, 1, 0),
366 static const struct snd_kcontrol_new wm8753_mono_mixer_controls[] = {
367 SOC_DAPM_SINGLE("Left Playback Switch", WM8753_MOUTM1, 8, 1, 0),
368 SOC_DAPM_SINGLE("Right Playback Switch", WM8753_MOUTM2, 8, 1, 0),
369 SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_MOUTM2, 3, 1, 0),
370 SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_MOUTM2, 7, 1, 0),
371 SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_MOUTM1, 7, 1, 0),
375 static const struct snd_kcontrol_new wm8753_mono2_controls =
376 SOC_DAPM_ENUM("Route", wm8753_enum[17]);
379 static const struct snd_kcontrol_new wm8753_out3_controls =
380 SOC_DAPM_ENUM("Route", wm8753_enum[18]);
383 static const struct snd_kcontrol_new wm8753_out4_controls =
384 SOC_DAPM_ENUM("Route", wm8753_enum[19]);
387 static const struct snd_kcontrol_new wm8753_adc_mono_controls =
388 SOC_DAPM_ENUM("Route", wm8753_enum[22]);
391 static const struct snd_kcontrol_new wm8753_record_mixer_controls[] = {
392 SOC_DAPM_SINGLE("Voice Capture Switch", WM8753_RECMIX2, 3, 1, 0),
393 SOC_DAPM_SINGLE("Left Capture Switch", WM8753_RECMIX1, 3, 1, 0),
394 SOC_DAPM_SINGLE("Right Capture Switch", WM8753_RECMIX1, 7, 1, 0),
398 static const struct snd_kcontrol_new wm8753_adc_left_controls =
399 SOC_DAPM_ENUM("Route", wm8753_enum[21]);
402 static const struct snd_kcontrol_new wm8753_adc_right_controls =
403 SOC_DAPM_ENUM("Route", wm8753_enum[20]);
406 static const struct snd_kcontrol_new wm8753_mic_mux_controls =
407 SOC_DAPM_ENUM("Route", wm8753_enum[16]);
410 static const struct snd_kcontrol_new wm8753_alc_mixer_controls[] = {
411 SOC_DAPM_SINGLE("Line Capture Switch", WM8753_INCTL2, 3, 1, 0),
412 SOC_DAPM_SINGLE("Mic2 Capture Switch", WM8753_INCTL2, 2, 1, 0),
413 SOC_DAPM_SINGLE("Mic1 Capture Switch", WM8753_INCTL2, 1, 1, 0),
414 SOC_DAPM_SINGLE("Rx Capture Switch", WM8753_INCTL2, 0, 1, 0),
418 static const struct snd_kcontrol_new wm8753_line_left_controls =
419 SOC_DAPM_ENUM("Route", wm8753_enum[14]);
422 static const struct snd_kcontrol_new wm8753_line_right_controls =
423 SOC_DAPM_ENUM("Route", wm8753_enum[13]);
426 static const struct snd_kcontrol_new wm8753_line_mono_controls =
427 SOC_DAPM_ENUM("Route", wm8753_enum[12]);
429 /* Line mux and mixer */
430 static const struct snd_kcontrol_new wm8753_line_mux_mix_controls =
431 SOC_DAPM_ENUM("Route", wm8753_enum[11]);
433 /* Rx mux and mixer */
434 static const struct snd_kcontrol_new wm8753_rx_mux_mix_controls =
435 SOC_DAPM_ENUM("Route", wm8753_enum[15]);
437 /* Mic Selector Mux */
438 static const struct snd_kcontrol_new wm8753_mic_sel_mux_controls =
439 SOC_DAPM_ENUM("Route", wm8753_enum[25]);
441 static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
442 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8753_PWR1, 5, 0),
443 SND_SOC_DAPM_MIXER("Left Mixer", WM8753_PWR4, 0, 0,
444 &wm8753_left_mixer_controls[0], ARRAY_SIZE(wm8753_left_mixer_controls)),
445 SND_SOC_DAPM_PGA("Left Out 1", WM8753_PWR3, 8, 0, NULL, 0),
446 SND_SOC_DAPM_PGA("Left Out 2", WM8753_PWR3, 6, 0, NULL, 0),
447 SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", WM8753_PWR1, 3, 0),
448 SND_SOC_DAPM_OUTPUT("LOUT1"),
449 SND_SOC_DAPM_OUTPUT("LOUT2"),
450 SND_SOC_DAPM_MIXER("Right Mixer", WM8753_PWR4, 1, 0,
451 &wm8753_right_mixer_controls[0], ARRAY_SIZE(wm8753_right_mixer_controls)),
452 SND_SOC_DAPM_PGA("Right Out 1", WM8753_PWR3, 7, 0, NULL, 0),
453 SND_SOC_DAPM_PGA("Right Out 2", WM8753_PWR3, 5, 0, NULL, 0),
454 SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", WM8753_PWR1, 2, 0),
455 SND_SOC_DAPM_OUTPUT("ROUT1"),
456 SND_SOC_DAPM_OUTPUT("ROUT2"),
457 SND_SOC_DAPM_MIXER("Mono Mixer", WM8753_PWR4, 2, 0,
458 &wm8753_mono_mixer_controls[0], ARRAY_SIZE(wm8753_mono_mixer_controls)),
459 SND_SOC_DAPM_PGA("Mono Out 1", WM8753_PWR3, 2, 0, NULL, 0),
460 SND_SOC_DAPM_PGA("Mono Out 2", WM8753_PWR3, 1, 0, NULL, 0),
461 SND_SOC_DAPM_DAC("Voice DAC", "Voice Playback", WM8753_PWR1, 4, 0),
462 SND_SOC_DAPM_OUTPUT("MONO1"),
463 SND_SOC_DAPM_MUX("Mono 2 Mux", SND_SOC_NOPM, 0, 0, &wm8753_mono2_controls),
464 SND_SOC_DAPM_OUTPUT("MONO2"),
465 SND_SOC_DAPM_MIXER("Out3 Left + Right", -1, 0, 0, NULL, 0),
466 SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out3_controls),
467 SND_SOC_DAPM_PGA("Out 3", WM8753_PWR3, 4, 0, NULL, 0),
468 SND_SOC_DAPM_OUTPUT("OUT3"),
469 SND_SOC_DAPM_MUX("Out4 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out4_controls),
470 SND_SOC_DAPM_PGA("Out 4", WM8753_PWR3, 3, 0, NULL, 0),
471 SND_SOC_DAPM_OUTPUT("OUT4"),
472 SND_SOC_DAPM_MIXER("Playback Mixer", WM8753_PWR4, 3, 0,
473 &wm8753_record_mixer_controls[0],
474 ARRAY_SIZE(wm8753_record_mixer_controls)),
475 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8753_PWR2, 3, 0),
476 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8753_PWR2, 2, 0),
477 SND_SOC_DAPM_MUX("Capture Left Mixer", SND_SOC_NOPM, 0, 0,
478 &wm8753_adc_mono_controls),
479 SND_SOC_DAPM_MUX("Capture Right Mixer", SND_SOC_NOPM, 0, 0,
480 &wm8753_adc_mono_controls),
481 SND_SOC_DAPM_MUX("Capture Left Mux", SND_SOC_NOPM, 0, 0,
482 &wm8753_adc_left_controls),
483 SND_SOC_DAPM_MUX("Capture Right Mux", SND_SOC_NOPM, 0, 0,
484 &wm8753_adc_right_controls),
485 SND_SOC_DAPM_MUX("Mic Sidetone Mux", SND_SOC_NOPM, 0, 0,
486 &wm8753_mic_mux_controls),
487 SND_SOC_DAPM_PGA("Left Capture Volume", WM8753_PWR2, 5, 0, NULL, 0),
488 SND_SOC_DAPM_PGA("Right Capture Volume", WM8753_PWR2, 4, 0, NULL, 0),
489 SND_SOC_DAPM_MIXER("ALC Mixer", WM8753_PWR2, 6, 0,
490 &wm8753_alc_mixer_controls[0], ARRAY_SIZE(wm8753_alc_mixer_controls)),
491 SND_SOC_DAPM_MUX("Line Left Mux", SND_SOC_NOPM, 0, 0,
492 &wm8753_line_left_controls),
493 SND_SOC_DAPM_MUX("Line Right Mux", SND_SOC_NOPM, 0, 0,
494 &wm8753_line_right_controls),
495 SND_SOC_DAPM_MUX("Line Mono Mux", SND_SOC_NOPM, 0, 0,
496 &wm8753_line_mono_controls),
497 SND_SOC_DAPM_MUX("Line Mixer", WM8753_PWR2, 0, 0,
498 &wm8753_line_mux_mix_controls),
499 SND_SOC_DAPM_MUX("Rx Mixer", WM8753_PWR2, 1, 0,
500 &wm8753_rx_mux_mix_controls),
501 SND_SOC_DAPM_PGA("Mic 1 Volume", WM8753_PWR2, 8, 0, NULL, 0),
502 SND_SOC_DAPM_PGA("Mic 2 Volume", WM8753_PWR2, 7, 0, NULL, 0),
503 SND_SOC_DAPM_MUX("Mic Selection Mux", SND_SOC_NOPM, 0, 0,
504 &wm8753_mic_sel_mux_controls),
505 SND_SOC_DAPM_INPUT("LINE1"),
506 SND_SOC_DAPM_INPUT("LINE2"),
507 SND_SOC_DAPM_INPUT("RXP"),
508 SND_SOC_DAPM_INPUT("RXN"),
509 SND_SOC_DAPM_INPUT("ACIN"),
510 SND_SOC_DAPM_OUTPUT("ACOP"),
511 SND_SOC_DAPM_INPUT("MIC1N"),
512 SND_SOC_DAPM_INPUT("MIC1"),
513 SND_SOC_DAPM_INPUT("MIC2N"),
514 SND_SOC_DAPM_INPUT("MIC2"),
515 SND_SOC_DAPM_VMID("VREF"),
518 static const struct snd_soc_dapm_route audio_map[] = {
520 {"Left Mixer", "Left Playback Switch", "Left DAC"},
521 {"Left Mixer", "Voice Playback Switch", "Voice DAC"},
522 {"Left Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
523 {"Left Mixer", "Bypass Playback Switch", "Line Left Mux"},
526 {"Right Mixer", "Right Playback Switch", "Right DAC"},
527 {"Right Mixer", "Voice Playback Switch", "Voice DAC"},
528 {"Right Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
529 {"Right Mixer", "Bypass Playback Switch", "Line Right Mux"},
532 {"Mono Mixer", "Voice Playback Switch", "Voice DAC"},
533 {"Mono Mixer", "Left Playback Switch", "Left DAC"},
534 {"Mono Mixer", "Right Playback Switch", "Right DAC"},
535 {"Mono Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
536 {"Mono Mixer", "Bypass Playback Switch", "Line Mono Mux"},
539 {"Left Out 1", NULL, "Left Mixer"},
540 {"Left Out 2", NULL, "Left Mixer"},
541 {"LOUT1", NULL, "Left Out 1"},
542 {"LOUT2", NULL, "Left Out 2"},
545 {"Right Out 1", NULL, "Right Mixer"},
546 {"Right Out 2", NULL, "Right Mixer"},
547 {"ROUT1", NULL, "Right Out 1"},
548 {"ROUT2", NULL, "Right Out 2"},
551 {"Mono Out 1", NULL, "Mono Mixer"},
552 {"MONO1", NULL, "Mono Out 1"},
555 {"Mono 2 Mux", "Left + Right", "Out3 Left + Right"},
556 {"Mono 2 Mux", "Inverted Mono 1", "MONO1"},
557 {"Mono 2 Mux", "Left", "Left Mixer"},
558 {"Mono 2 Mux", "Right", "Right Mixer"},
559 {"Mono Out 2", NULL, "Mono 2 Mux"},
560 {"MONO2", NULL, "Mono Out 2"},
563 {"Out3 Left + Right", NULL, "Left Mixer"},
564 {"Out3 Left + Right", NULL, "Right Mixer"},
565 {"Out3 Mux", "VREF", "VREF"},
566 {"Out3 Mux", "Left + Right", "Out3 Left + Right"},
567 {"Out3 Mux", "ROUT2", "ROUT2"},
568 {"Out 3", NULL, "Out3 Mux"},
569 {"OUT3", NULL, "Out 3"},
572 {"Out4 Mux", "VREF", "VREF"},
573 {"Out4 Mux", "Capture ST", "Playback Mixer"},
574 {"Out4 Mux", "LOUT2", "LOUT2"},
575 {"Out 4", NULL, "Out4 Mux"},
576 {"OUT4", NULL, "Out 4"},
579 {"Playback Mixer", "Left Capture Switch", "Left Mixer"},
580 {"Playback Mixer", "Voice Capture Switch", "Mono Mixer"},
581 {"Playback Mixer", "Right Capture Switch", "Right Mixer"},
583 /* Mic/SideTone Mux */
584 {"Mic Sidetone Mux", "Left PGA", "Left Capture Volume"},
585 {"Mic Sidetone Mux", "Right PGA", "Right Capture Volume"},
586 {"Mic Sidetone Mux", "Mic 1", "Mic 1 Volume"},
587 {"Mic Sidetone Mux", "Mic 2", "Mic 2 Volume"},
589 /* Capture Left Mux */
590 {"Capture Left Mux", "PGA", "Left Capture Volume"},
591 {"Capture Left Mux", "Line or RXP-RXN", "Line Left Mux"},
592 {"Capture Left Mux", "Line", "LINE1"},
594 /* Capture Right Mux */
595 {"Capture Right Mux", "PGA", "Right Capture Volume"},
596 {"Capture Right Mux", "Line or RXP-RXN", "Line Right Mux"},
597 {"Capture Right Mux", "Sidetone", "Playback Mixer"},
599 /* Mono Capture mixer-mux */
600 {"Capture Right Mixer", "Stereo", "Capture Right Mux"},
601 {"Capture Left Mixer", "Analogue Mix Left", "Capture Left Mux"},
602 {"Capture Left Mixer", "Analogue Mix Left", "Capture Right Mux"},
603 {"Capture Right Mixer", "Analogue Mix Right", "Capture Left Mux"},
604 {"Capture Right Mixer", "Analogue Mix Right", "Capture Right Mux"},
605 {"Capture Left Mixer", "Digital Mono Mix", "Capture Left Mux"},
606 {"Capture Left Mixer", "Digital Mono Mix", "Capture Right Mux"},
607 {"Capture Right Mixer", "Digital Mono Mix", "Capture Left Mux"},
608 {"Capture Right Mixer", "Digital Mono Mix", "Capture Right Mux"},
611 {"Left ADC", NULL, "Capture Left Mixer"},
612 {"Right ADC", NULL, "Capture Right Mixer"},
614 /* Left Capture Volume */
615 {"Left Capture Volume", NULL, "ACIN"},
617 /* Right Capture Volume */
618 {"Right Capture Volume", NULL, "Mic 2 Volume"},
621 {"ALC Mixer", "Line Capture Switch", "Line Mixer"},
622 {"ALC Mixer", "Mic2 Capture Switch", "Mic 2 Volume"},
623 {"ALC Mixer", "Mic1 Capture Switch", "Mic 1 Volume"},
624 {"ALC Mixer", "Rx Capture Switch", "Rx Mixer"},
627 {"Line Left Mux", "Line 1", "LINE1"},
628 {"Line Left Mux", "Rx Mix", "Rx Mixer"},
631 {"Line Right Mux", "Line 2", "LINE2"},
632 {"Line Right Mux", "Rx Mix", "Rx Mixer"},
635 {"Line Mono Mux", "Line Mix", "Line Mixer"},
636 {"Line Mono Mux", "Rx Mix", "Rx Mixer"},
639 {"Line Mixer", "Line 1 + 2", "LINE1"},
640 {"Line Mixer", "Line 1 - 2", "LINE1"},
641 {"Line Mixer", "Line 1 + 2", "LINE2"},
642 {"Line Mixer", "Line 1 - 2", "LINE2"},
643 {"Line Mixer", "Line 1", "LINE1"},
644 {"Line Mixer", "Line 2", "LINE2"},
647 {"Rx Mixer", "RXP - RXN", "RXP"},
648 {"Rx Mixer", "RXP + RXN", "RXP"},
649 {"Rx Mixer", "RXP - RXN", "RXN"},
650 {"Rx Mixer", "RXP + RXN", "RXN"},
651 {"Rx Mixer", "RXP", "RXP"},
652 {"Rx Mixer", "RXN", "RXN"},
655 {"Mic 1 Volume", NULL, "MIC1N"},
656 {"Mic 1 Volume", NULL, "Mic Selection Mux"},
659 {"Mic 2 Volume", NULL, "MIC2N"},
660 {"Mic 2 Volume", NULL, "MIC2"},
662 /* Mic Selector Mux */
663 {"Mic Selection Mux", "Mic 1", "MIC1"},
664 {"Mic Selection Mux", "Mic 2", "MIC2N"},
665 {"Mic Selection Mux", "Mic 3", "MIC2"},
668 {"ACOP", NULL, "ALC Mixer"},
671 static int wm8753_add_widgets(struct snd_soc_codec *codec)
673 snd_soc_dapm_new_controls(codec, wm8753_dapm_widgets,
674 ARRAY_SIZE(wm8753_dapm_widgets));
676 snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
678 snd_soc_dapm_new_widgets(codec);
689 /* The size in bits of the pll divide multiplied by 10
690 * to allow rounding later */
691 #define FIXED_PLL_SIZE ((1 << 22) * 10)
693 static void pll_factors(struct _pll_div *pll_div, unsigned int target,
697 unsigned int K, Ndiv, Nmod;
699 Ndiv = target / source;
703 Ndiv = target / source;
707 if ((Ndiv < 6) || (Ndiv > 12))
709 "wm8753: unsupported N = %d\n", Ndiv);
712 Nmod = target % source;
713 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
715 do_div(Kpart, source);
717 K = Kpart & 0xFFFFFFFF;
719 /* Check if we need to round */
723 /* Move down to proper range now rounding is done */
729 static int wm8753_set_dai_pll(struct snd_soc_dai *codec_dai,
730 int pll_id, unsigned int freq_in, unsigned int freq_out)
734 struct snd_soc_codec *codec = codec_dai->codec;
736 if (pll_id < WM8753_PLL1 || pll_id > WM8753_PLL2)
739 if (pll_id == WM8753_PLL1) {
742 reg = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xffef;
746 reg = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfff7;
749 if (!freq_in || !freq_out) {
751 wm8753_write(codec, WM8753_PLL1CTL1 + offset, 0x0026);
752 wm8753_write(codec, WM8753_CLOCK, reg);
756 struct _pll_div pll_div;
758 pll_factors(&pll_div, freq_out * 8, freq_in);
760 /* set up N and K PLL divisor ratios */
761 /* bits 8:5 = PLL_N, bits 3:0 = PLL_K[21:18] */
762 value = (pll_div.n << 5) + ((pll_div.k & 0x3c0000) >> 18);
763 wm8753_write(codec, WM8753_PLL1CTL2 + offset, value);
765 /* bits 8:0 = PLL_K[17:9] */
766 value = (pll_div.k & 0x03fe00) >> 9;
767 wm8753_write(codec, WM8753_PLL1CTL3 + offset, value);
769 /* bits 8:0 = PLL_K[8:0] */
770 value = pll_div.k & 0x0001ff;
771 wm8753_write(codec, WM8753_PLL1CTL4 + offset, value);
773 /* set PLL as input and enable */
774 wm8753_write(codec, WM8753_PLL1CTL1 + offset, 0x0027 |
775 (pll_div.div2 << 3));
776 wm8753_write(codec, WM8753_CLOCK, reg | enable);
788 /* codec hifi mclk (after PLL) clock divider coefficients */
789 static const struct _coeff_div coeff_div[] = {
791 {12288000, 8000, 0x6, 0x0},
792 {11289600, 8000, 0x16, 0x0},
793 {18432000, 8000, 0x7, 0x0},
794 {16934400, 8000, 0x17, 0x0},
795 {12000000, 8000, 0x6, 0x1},
798 {11289600, 11025, 0x18, 0x0},
799 {16934400, 11025, 0x19, 0x0},
800 {12000000, 11025, 0x19, 0x1},
803 {12288000, 16000, 0xa, 0x0},
804 {18432000, 16000, 0xb, 0x0},
805 {12000000, 16000, 0xa, 0x1},
808 {11289600, 22050, 0x1a, 0x0},
809 {16934400, 22050, 0x1b, 0x0},
810 {12000000, 22050, 0x1b, 0x1},
813 {12288000, 32000, 0xc, 0x0},
814 {18432000, 32000, 0xd, 0x0},
815 {12000000, 32000, 0xa, 0x1},
818 {11289600, 44100, 0x10, 0x0},
819 {16934400, 44100, 0x11, 0x0},
820 {12000000, 44100, 0x11, 0x1},
823 {12288000, 48000, 0x0, 0x0},
824 {18432000, 48000, 0x1, 0x0},
825 {12000000, 48000, 0x0, 0x1},
828 {11289600, 88200, 0x1e, 0x0},
829 {16934400, 88200, 0x1f, 0x0},
830 {12000000, 88200, 0x1f, 0x1},
833 {12288000, 96000, 0xe, 0x0},
834 {18432000, 96000, 0xf, 0x0},
835 {12000000, 96000, 0xe, 0x1},
838 static int get_coeff(int mclk, int rate)
842 for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
843 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
850 * Clock after PLL and dividers
852 static int wm8753_set_dai_sysclk(struct snd_soc_dai *codec_dai,
853 int clk_id, unsigned int freq, int dir)
855 struct snd_soc_codec *codec = codec_dai->codec;
856 struct wm8753_priv *wm8753 = codec->private_data;
864 if (clk_id == WM8753_MCLK) {
865 wm8753->sysclk = freq;
867 } else if (clk_id == WM8753_PCMCLK) {
868 wm8753->pcmclk = freq;
877 * Set's ADC and Voice DAC format.
879 static int wm8753_vdac_adc_set_dai_fmt(struct snd_soc_dai *codec_dai,
882 struct snd_soc_codec *codec = codec_dai->codec;
883 u16 voice = wm8753_read_reg_cache(codec, WM8753_PCM) & 0x01ec;
885 /* interface format */
886 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
887 case SND_SOC_DAIFMT_I2S:
890 case SND_SOC_DAIFMT_RIGHT_J:
892 case SND_SOC_DAIFMT_LEFT_J:
895 case SND_SOC_DAIFMT_DSP_A:
898 case SND_SOC_DAIFMT_DSP_B:
905 wm8753_write(codec, WM8753_PCM, voice);
910 * Set PCM DAI bit size and sample rate.
912 static int wm8753_pcm_hw_params(struct snd_pcm_substream *substream,
913 struct snd_pcm_hw_params *params,
914 struct snd_soc_dai *dai)
916 struct snd_soc_pcm_runtime *rtd = substream->private_data;
917 struct snd_soc_device *socdev = rtd->socdev;
918 struct snd_soc_codec *codec = socdev->card->codec;
919 struct wm8753_priv *wm8753 = codec->private_data;
920 u16 voice = wm8753_read_reg_cache(codec, WM8753_PCM) & 0x01f3;
921 u16 srate = wm8753_read_reg_cache(codec, WM8753_SRATE1) & 0x017f;
924 switch (params_format(params)) {
925 case SNDRV_PCM_FORMAT_S16_LE:
927 case SNDRV_PCM_FORMAT_S20_3LE:
930 case SNDRV_PCM_FORMAT_S24_LE:
933 case SNDRV_PCM_FORMAT_S32_LE:
939 if (params_rate(params) * 384 == wm8753->pcmclk)
941 wm8753_write(codec, WM8753_SRATE1, srate);
943 wm8753_write(codec, WM8753_PCM, voice);
948 * Set's PCM dai fmt and BCLK.
950 static int wm8753_pcm_set_dai_fmt(struct snd_soc_dai *codec_dai,
953 struct snd_soc_codec *codec = codec_dai->codec;
956 voice = wm8753_read_reg_cache(codec, WM8753_PCM) & 0x011f;
957 ioctl = wm8753_read_reg_cache(codec, WM8753_IOCTL) & 0x015d;
959 /* set master/slave audio interface */
960 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
961 case SND_SOC_DAIFMT_CBS_CFS:
963 case SND_SOC_DAIFMT_CBM_CFM:
965 case SND_SOC_DAIFMT_CBM_CFS:
972 /* clock inversion */
973 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
974 case SND_SOC_DAIFMT_DSP_A:
975 case SND_SOC_DAIFMT_DSP_B:
976 /* frame inversion not valid for DSP modes */
977 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
978 case SND_SOC_DAIFMT_NB_NF:
980 case SND_SOC_DAIFMT_IB_NF:
987 case SND_SOC_DAIFMT_I2S:
988 case SND_SOC_DAIFMT_RIGHT_J:
989 case SND_SOC_DAIFMT_LEFT_J:
991 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
992 case SND_SOC_DAIFMT_NB_NF:
994 case SND_SOC_DAIFMT_IB_IF:
997 case SND_SOC_DAIFMT_IB_NF:
1000 case SND_SOC_DAIFMT_NB_IF:
1011 wm8753_write(codec, WM8753_PCM, voice);
1012 wm8753_write(codec, WM8753_IOCTL, ioctl);
1016 static int wm8753_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
1017 int div_id, int div)
1019 struct snd_soc_codec *codec = codec_dai->codec;
1024 reg = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0x003f;
1025 wm8753_write(codec, WM8753_CLOCK, reg | div);
1027 case WM8753_BCLKDIV:
1028 reg = wm8753_read_reg_cache(codec, WM8753_SRATE2) & 0x01c7;
1029 wm8753_write(codec, WM8753_SRATE2, reg | div);
1031 case WM8753_VXCLKDIV:
1032 reg = wm8753_read_reg_cache(codec, WM8753_SRATE2) & 0x003f;
1033 wm8753_write(codec, WM8753_SRATE2, reg | div);
1042 * Set's HiFi DAC format.
1044 static int wm8753_hdac_set_dai_fmt(struct snd_soc_dai *codec_dai,
1047 struct snd_soc_codec *codec = codec_dai->codec;
1048 u16 hifi = wm8753_read_reg_cache(codec, WM8753_HIFI) & 0x01e0;
1050 /* interface format */
1051 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1052 case SND_SOC_DAIFMT_I2S:
1055 case SND_SOC_DAIFMT_RIGHT_J:
1057 case SND_SOC_DAIFMT_LEFT_J:
1060 case SND_SOC_DAIFMT_DSP_A:
1063 case SND_SOC_DAIFMT_DSP_B:
1070 wm8753_write(codec, WM8753_HIFI, hifi);
1075 * Set's I2S DAI format.
1077 static int wm8753_i2s_set_dai_fmt(struct snd_soc_dai *codec_dai,
1080 struct snd_soc_codec *codec = codec_dai->codec;
1083 hifi = wm8753_read_reg_cache(codec, WM8753_HIFI) & 0x011f;
1084 ioctl = wm8753_read_reg_cache(codec, WM8753_IOCTL) & 0x00ae;
1086 /* set master/slave audio interface */
1087 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1088 case SND_SOC_DAIFMT_CBS_CFS:
1090 case SND_SOC_DAIFMT_CBM_CFM:
1092 case SND_SOC_DAIFMT_CBM_CFS:
1099 /* clock inversion */
1100 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1101 case SND_SOC_DAIFMT_DSP_A:
1102 case SND_SOC_DAIFMT_DSP_B:
1103 /* frame inversion not valid for DSP modes */
1104 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1105 case SND_SOC_DAIFMT_NB_NF:
1107 case SND_SOC_DAIFMT_IB_NF:
1114 case SND_SOC_DAIFMT_I2S:
1115 case SND_SOC_DAIFMT_RIGHT_J:
1116 case SND_SOC_DAIFMT_LEFT_J:
1118 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1119 case SND_SOC_DAIFMT_NB_NF:
1121 case SND_SOC_DAIFMT_IB_IF:
1124 case SND_SOC_DAIFMT_IB_NF:
1127 case SND_SOC_DAIFMT_NB_IF:
1138 wm8753_write(codec, WM8753_HIFI, hifi);
1139 wm8753_write(codec, WM8753_IOCTL, ioctl);
1144 * Set PCM DAI bit size and sample rate.
1146 static int wm8753_i2s_hw_params(struct snd_pcm_substream *substream,
1147 struct snd_pcm_hw_params *params,
1148 struct snd_soc_dai *dai)
1150 struct snd_soc_pcm_runtime *rtd = substream->private_data;
1151 struct snd_soc_device *socdev = rtd->socdev;
1152 struct snd_soc_codec *codec = socdev->card->codec;
1153 struct wm8753_priv *wm8753 = codec->private_data;
1154 u16 srate = wm8753_read_reg_cache(codec, WM8753_SRATE1) & 0x01c0;
1155 u16 hifi = wm8753_read_reg_cache(codec, WM8753_HIFI) & 0x01f3;
1158 /* is digital filter coefficient valid ? */
1159 coeff = get_coeff(wm8753->sysclk, params_rate(params));
1161 printk(KERN_ERR "wm8753 invalid MCLK or rate\n");
1164 wm8753_write(codec, WM8753_SRATE1, srate | (coeff_div[coeff].sr << 1) |
1165 coeff_div[coeff].usb);
1168 switch (params_format(params)) {
1169 case SNDRV_PCM_FORMAT_S16_LE:
1171 case SNDRV_PCM_FORMAT_S20_3LE:
1174 case SNDRV_PCM_FORMAT_S24_LE:
1177 case SNDRV_PCM_FORMAT_S32_LE:
1182 wm8753_write(codec, WM8753_HIFI, hifi);
1186 static int wm8753_mode1v_set_dai_fmt(struct snd_soc_dai *codec_dai,
1189 struct snd_soc_codec *codec = codec_dai->codec;
1192 /* set clk source as pcmclk */
1193 clock = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfffb;
1194 wm8753_write(codec, WM8753_CLOCK, clock);
1196 if (wm8753_vdac_adc_set_dai_fmt(codec_dai, fmt) < 0)
1198 return wm8753_pcm_set_dai_fmt(codec_dai, fmt);
1201 static int wm8753_mode1h_set_dai_fmt(struct snd_soc_dai *codec_dai,
1204 if (wm8753_hdac_set_dai_fmt(codec_dai, fmt) < 0)
1206 return wm8753_i2s_set_dai_fmt(codec_dai, fmt);
1209 static int wm8753_mode2_set_dai_fmt(struct snd_soc_dai *codec_dai,
1212 struct snd_soc_codec *codec = codec_dai->codec;
1215 /* set clk source as pcmclk */
1216 clock = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfffb;
1217 wm8753_write(codec, WM8753_CLOCK, clock);
1219 if (wm8753_vdac_adc_set_dai_fmt(codec_dai, fmt) < 0)
1221 return wm8753_i2s_set_dai_fmt(codec_dai, fmt);
1224 static int wm8753_mode3_4_set_dai_fmt(struct snd_soc_dai *codec_dai,
1227 struct snd_soc_codec *codec = codec_dai->codec;
1230 /* set clk source as mclk */
1231 clock = wm8753_read_reg_cache(codec, WM8753_CLOCK) & 0xfffb;
1232 wm8753_write(codec, WM8753_CLOCK, clock | 0x4);
1234 if (wm8753_hdac_set_dai_fmt(codec_dai, fmt) < 0)
1236 if (wm8753_vdac_adc_set_dai_fmt(codec_dai, fmt) < 0)
1238 return wm8753_i2s_set_dai_fmt(codec_dai, fmt);
1241 static int wm8753_mute(struct snd_soc_dai *dai, int mute)
1243 struct snd_soc_codec *codec = dai->codec;
1244 u16 mute_reg = wm8753_read_reg_cache(codec, WM8753_DAC) & 0xfff7;
1246 /* the digital mute covers the HiFi and Voice DAC's on the WM8753.
1247 * make sure we check if they are not both active when we mute */
1248 if (mute && dai->id == 1) {
1249 if (!wm8753_dai[WM8753_DAI_VOICE].playback.active ||
1250 !wm8753_dai[WM8753_DAI_HIFI].playback.active)
1251 wm8753_write(codec, WM8753_DAC, mute_reg | 0x8);
1254 wm8753_write(codec, WM8753_DAC, mute_reg | 0x8);
1256 wm8753_write(codec, WM8753_DAC, mute_reg);
1262 static int wm8753_set_bias_level(struct snd_soc_codec *codec,
1263 enum snd_soc_bias_level level)
1265 u16 pwr_reg = wm8753_read_reg_cache(codec, WM8753_PWR1) & 0xfe3e;
1268 case SND_SOC_BIAS_ON:
1269 /* set vmid to 50k and unmute dac */
1270 wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x00c0);
1272 case SND_SOC_BIAS_PREPARE:
1273 /* set vmid to 5k for quick power up */
1274 wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x01c1);
1276 case SND_SOC_BIAS_STANDBY:
1277 /* mute dac and set vmid to 500k, enable VREF */
1278 wm8753_write(codec, WM8753_PWR1, pwr_reg | 0x0141);
1280 case SND_SOC_BIAS_OFF:
1281 wm8753_write(codec, WM8753_PWR1, 0x0001);
1284 codec->bias_level = level;
1288 #define WM8753_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
1289 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
1290 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
1291 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
1293 #define WM8753_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1294 SNDRV_PCM_FMTBIT_S24_LE)
1297 * The WM8753 supports upto 4 different and mutually exclusive DAI
1298 * configurations. This gives 2 PCM's available for use, hifi and voice.
1299 * NOTE: The Voice PCM cannot play or capture audio to the CPU as it's DAI
1300 * is connected between the wm8753 and a BT codec or GSM modem.
1302 * 1. Voice over PCM DAI - HIFI DAC over HIFI DAI
1303 * 2. Voice over HIFI DAI - HIFI disabled
1304 * 3. Voice disabled - HIFI over HIFI
1305 * 4. Voice disabled - HIFI over HIFI, uses voice DAI LRC for capture
1307 static const struct snd_soc_dai wm8753_all_dai[] = {
1308 /* DAI HiFi mode 1 */
1309 { .name = "WM8753 HiFi",
1312 .stream_name = "HiFi Playback",
1315 .rates = WM8753_RATES,
1316 .formats = WM8753_FORMATS},
1317 .capture = { /* dummy for fast DAI switching */
1318 .stream_name = "Capture",
1321 .rates = WM8753_RATES,
1322 .formats = WM8753_FORMATS},
1324 .hw_params = wm8753_i2s_hw_params,
1325 .digital_mute = wm8753_mute,
1326 .set_fmt = wm8753_mode1h_set_dai_fmt,
1327 .set_clkdiv = wm8753_set_dai_clkdiv,
1328 .set_pll = wm8753_set_dai_pll,
1329 .set_sysclk = wm8753_set_dai_sysclk,
1332 /* DAI Voice mode 1 */
1333 { .name = "WM8753 Voice",
1336 .stream_name = "Voice Playback",
1339 .rates = WM8753_RATES,
1340 .formats = WM8753_FORMATS,},
1342 .stream_name = "Capture",
1345 .rates = WM8753_RATES,
1346 .formats = WM8753_FORMATS,},
1348 .hw_params = wm8753_pcm_hw_params,
1349 .digital_mute = wm8753_mute,
1350 .set_fmt = wm8753_mode1v_set_dai_fmt,
1351 .set_clkdiv = wm8753_set_dai_clkdiv,
1352 .set_pll = wm8753_set_dai_pll,
1353 .set_sysclk = wm8753_set_dai_sysclk,
1356 /* DAI HiFi mode 2 - dummy */
1357 { .name = "WM8753 HiFi",
1360 /* DAI Voice mode 2 */
1361 { .name = "WM8753 Voice",
1364 .stream_name = "Voice Playback",
1367 .rates = WM8753_RATES,
1368 .formats = WM8753_FORMATS,},
1370 .stream_name = "Capture",
1373 .rates = WM8753_RATES,
1374 .formats = WM8753_FORMATS,},
1376 .hw_params = wm8753_pcm_hw_params,
1377 .digital_mute = wm8753_mute,
1378 .set_fmt = wm8753_mode2_set_dai_fmt,
1379 .set_clkdiv = wm8753_set_dai_clkdiv,
1380 .set_pll = wm8753_set_dai_pll,
1381 .set_sysclk = wm8753_set_dai_sysclk,
1384 /* DAI HiFi mode 3 */
1385 { .name = "WM8753 HiFi",
1388 .stream_name = "HiFi Playback",
1391 .rates = WM8753_RATES,
1392 .formats = WM8753_FORMATS,},
1394 .stream_name = "Capture",
1397 .rates = WM8753_RATES,
1398 .formats = WM8753_FORMATS,},
1400 .hw_params = wm8753_i2s_hw_params,
1401 .digital_mute = wm8753_mute,
1402 .set_fmt = wm8753_mode3_4_set_dai_fmt,
1403 .set_clkdiv = wm8753_set_dai_clkdiv,
1404 .set_pll = wm8753_set_dai_pll,
1405 .set_sysclk = wm8753_set_dai_sysclk,
1408 /* DAI Voice mode 3 - dummy */
1409 { .name = "WM8753 Voice",
1412 /* DAI HiFi mode 4 */
1413 { .name = "WM8753 HiFi",
1416 .stream_name = "HiFi Playback",
1419 .rates = WM8753_RATES,
1420 .formats = WM8753_FORMATS,},
1422 .stream_name = "Capture",
1425 .rates = WM8753_RATES,
1426 .formats = WM8753_FORMATS,},
1428 .hw_params = wm8753_i2s_hw_params,
1429 .digital_mute = wm8753_mute,
1430 .set_fmt = wm8753_mode3_4_set_dai_fmt,
1431 .set_clkdiv = wm8753_set_dai_clkdiv,
1432 .set_pll = wm8753_set_dai_pll,
1433 .set_sysclk = wm8753_set_dai_sysclk,
1436 /* DAI Voice mode 4 - dummy */
1437 { .name = "WM8753 Voice",
1442 struct snd_soc_dai wm8753_dai[] = {
1444 .name = "WM8753 DAI 0",
1447 .name = "WM8753 DAI 1",
1450 EXPORT_SYMBOL_GPL(wm8753_dai);
1452 static void wm8753_set_dai_mode(struct snd_soc_codec *codec, unsigned int mode)
1455 int playback_active, capture_active, codec_active, pop_wait;
1457 struct list_head list;
1459 playback_active = wm8753_dai[0].playback.active;
1460 capture_active = wm8753_dai[0].capture.active;
1461 codec_active = wm8753_dai[0].active;
1462 private_data = wm8753_dai[0].private_data;
1463 pop_wait = wm8753_dai[0].pop_wait;
1464 list = wm8753_dai[0].list;
1465 wm8753_dai[0] = wm8753_all_dai[mode << 1];
1466 wm8753_dai[0].playback.active = playback_active;
1467 wm8753_dai[0].capture.active = capture_active;
1468 wm8753_dai[0].active = codec_active;
1469 wm8753_dai[0].private_data = private_data;
1470 wm8753_dai[0].pop_wait = pop_wait;
1471 wm8753_dai[0].list = list;
1473 playback_active = wm8753_dai[1].playback.active;
1474 capture_active = wm8753_dai[1].capture.active;
1475 codec_active = wm8753_dai[1].active;
1476 private_data = wm8753_dai[1].private_data;
1477 pop_wait = wm8753_dai[1].pop_wait;
1478 list = wm8753_dai[1].list;
1479 wm8753_dai[1] = wm8753_all_dai[(mode << 1) + 1];
1480 wm8753_dai[1].playback.active = playback_active;
1481 wm8753_dai[1].capture.active = capture_active;
1482 wm8753_dai[1].active = codec_active;
1483 wm8753_dai[1].private_data = private_data;
1484 wm8753_dai[1].pop_wait = pop_wait;
1485 wm8753_dai[1].list = list;
1487 wm8753_dai[0].codec = codec;
1488 wm8753_dai[1].codec = codec;
1491 static void wm8753_work(struct work_struct *work)
1493 struct snd_soc_codec *codec =
1494 container_of(work, struct snd_soc_codec, delayed_work.work);
1495 wm8753_set_bias_level(codec, codec->bias_level);
1498 static int wm8753_suspend(struct platform_device *pdev, pm_message_t state)
1500 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1501 struct snd_soc_codec *codec = socdev->card->codec;
1503 /* we only need to suspend if we are a valid card */
1507 wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
1511 static int wm8753_resume(struct platform_device *pdev)
1513 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1514 struct snd_soc_codec *codec = socdev->card->codec;
1517 u16 *cache = codec->reg_cache;
1519 /* we only need to resume if we are a valid card */
1523 /* Sync reg_cache with the hardware */
1524 for (i = 0; i < ARRAY_SIZE(wm8753_reg); i++) {
1525 if (i + 1 == WM8753_RESET)
1527 data[0] = ((i + 1) << 1) | ((cache[i] >> 8) & 0x0001);
1528 data[1] = cache[i] & 0x00ff;
1529 codec->hw_write(codec->control_data, data, 2);
1532 wm8753_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
1534 /* charge wm8753 caps */
1535 if (codec->suspend_bias_level == SND_SOC_BIAS_ON) {
1536 wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
1537 codec->bias_level = SND_SOC_BIAS_ON;
1538 schedule_delayed_work(&codec->delayed_work,
1539 msecs_to_jiffies(caps_charge));
1546 * initialise the WM8753 driver
1547 * register the mixer and dsp interfaces with the kernel
1549 static int wm8753_init(struct snd_soc_device *socdev)
1551 struct snd_soc_codec *codec = socdev->card->codec;
1554 codec->name = "WM8753";
1555 codec->owner = THIS_MODULE;
1556 codec->read = wm8753_read_reg_cache;
1557 codec->write = wm8753_write;
1558 codec->set_bias_level = wm8753_set_bias_level;
1559 codec->dai = wm8753_dai;
1561 codec->reg_cache_size = ARRAY_SIZE(wm8753_reg);
1562 codec->reg_cache = kmemdup(wm8753_reg, sizeof(wm8753_reg), GFP_KERNEL);
1564 if (codec->reg_cache == NULL)
1567 wm8753_set_dai_mode(codec, 0);
1569 ret = wm8753_reset(codec);
1571 printk(KERN_ERR "wm8753: failed to reset device\n");
1576 ret = snd_soc_new_pcms(socdev, SNDRV_DEFAULT_IDX1, SNDRV_DEFAULT_STR1);
1578 printk(KERN_ERR "wm8753: failed to create pcms\n");
1582 /* charge output caps */
1583 wm8753_set_bias_level(codec, SND_SOC_BIAS_PREPARE);
1584 codec->bias_level = SND_SOC_BIAS_STANDBY;
1585 schedule_delayed_work(&codec->delayed_work,
1586 msecs_to_jiffies(caps_charge));
1588 /* set the update bits */
1589 reg = wm8753_read_reg_cache(codec, WM8753_LDAC);
1590 wm8753_write(codec, WM8753_LDAC, reg | 0x0100);
1591 reg = wm8753_read_reg_cache(codec, WM8753_RDAC);
1592 wm8753_write(codec, WM8753_RDAC, reg | 0x0100);
1593 reg = wm8753_read_reg_cache(codec, WM8753_LADC);
1594 wm8753_write(codec, WM8753_LADC, reg | 0x0100);
1595 reg = wm8753_read_reg_cache(codec, WM8753_RADC);
1596 wm8753_write(codec, WM8753_RADC, reg | 0x0100);
1597 reg = wm8753_read_reg_cache(codec, WM8753_LOUT1V);
1598 wm8753_write(codec, WM8753_LOUT1V, reg | 0x0100);
1599 reg = wm8753_read_reg_cache(codec, WM8753_ROUT1V);
1600 wm8753_write(codec, WM8753_ROUT1V, reg | 0x0100);
1601 reg = wm8753_read_reg_cache(codec, WM8753_LOUT2V);
1602 wm8753_write(codec, WM8753_LOUT2V, reg | 0x0100);
1603 reg = wm8753_read_reg_cache(codec, WM8753_ROUT2V);
1604 wm8753_write(codec, WM8753_ROUT2V, reg | 0x0100);
1605 reg = wm8753_read_reg_cache(codec, WM8753_LINVOL);
1606 wm8753_write(codec, WM8753_LINVOL, reg | 0x0100);
1607 reg = wm8753_read_reg_cache(codec, WM8753_RINVOL);
1608 wm8753_write(codec, WM8753_RINVOL, reg | 0x0100);
1610 snd_soc_add_controls(codec, wm8753_snd_controls,
1611 ARRAY_SIZE(wm8753_snd_controls));
1612 wm8753_add_widgets(codec);
1613 ret = snd_soc_init_card(socdev);
1615 printk(KERN_ERR "wm8753: failed to register card\n");
1622 snd_soc_free_pcms(socdev);
1623 snd_soc_dapm_free(socdev);
1625 kfree(codec->reg_cache);
1629 /* If the i2c layer weren't so broken, we could pass this kind of data
1631 static struct snd_soc_device *wm8753_socdev;
1633 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1634 static struct i2c_driver wm8753_i2c_driver;
1636 static int wm8753_add_i2c_device(struct platform_device *pdev,
1637 const struct wm8753_setup_data *setup)
1639 struct i2c_board_info info;
1640 struct i2c_adapter *adapter;
1641 struct i2c_client *client;
1644 ret = i2c_add_driver(&wm8753_i2c_driver);
1646 dev_err(&pdev->dev, "can't add i2c driver\n");
1650 memset(&info, 0, sizeof(struct i2c_board_info));
1651 info.addr = setup->i2c_address;
1652 strlcpy(info.type, "wm8753", I2C_NAME_SIZE);
1654 adapter = i2c_get_adapter(setup->i2c_bus);
1656 dev_err(&pdev->dev, "can't get i2c adapter %d\n",
1661 client = i2c_new_device(adapter, &info);
1662 i2c_put_adapter(adapter);
1664 dev_err(&pdev->dev, "can't add i2c device at 0x%x\n",
1665 (unsigned int)info.addr);
1672 i2c_del_driver(&wm8753_i2c_driver);
1677 static int wm8753_probe(struct platform_device *pdev)
1679 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1680 struct wm8753_setup_data *setup;
1681 struct snd_soc_codec *codec;
1682 struct wm8753_priv *wm8753;
1685 setup = socdev->codec_data;
1686 codec = kzalloc(sizeof(struct snd_soc_codec), GFP_KERNEL);
1690 wm8753 = kzalloc(sizeof(struct wm8753_priv), GFP_KERNEL);
1691 if (wm8753 == NULL) {
1696 codec->private_data = wm8753;
1697 socdev->card->codec = codec;
1698 mutex_init(&codec->mutex);
1699 INIT_LIST_HEAD(&codec->dapm_widgets);
1700 INIT_LIST_HEAD(&codec->dapm_paths);
1701 wm8753_socdev = socdev;
1702 INIT_DELAYED_WORK(&codec->delayed_work, wm8753_work);
1704 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1705 if (setup->i2c_address) {
1706 codec->hw_write = (hw_write_t)i2c_master_send;
1707 ret = wm8753_add_i2c_device(pdev, setup);
1710 #if defined(CONFIG_SPI_MASTER)
1712 codec->hw_write = (hw_write_t)wm8753_spi_write;
1713 ret = spi_register_driver(&wm8753_spi_driver);
1715 printk(KERN_ERR "can't add spi driver");
1720 kfree(codec->private_data);
1727 * This function forces any delayed work to be queued and run.
1729 static int run_delayed_work(struct delayed_work *dwork)
1733 /* cancel any work waiting to be queued. */
1734 ret = cancel_delayed_work(dwork);
1736 /* if there was any work waiting then we run it now and
1737 * wait for it's completion */
1739 schedule_delayed_work(dwork, 0);
1740 flush_scheduled_work();
1745 /* power down chip */
1746 static int wm8753_remove(struct platform_device *pdev)
1748 struct snd_soc_device *socdev = platform_get_drvdata(pdev);
1749 struct snd_soc_codec *codec = socdev->card->codec;
1750 struct wm8753_setup_data *setup = socdev->codec_data;
1752 if (codec->control_data)
1753 wm8753_set_bias_level(codec, SND_SOC_BIAS_OFF);
1754 run_delayed_work(&codec->delayed_work);
1755 snd_soc_free_pcms(socdev);
1756 snd_soc_dapm_free(socdev);
1757 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1758 if (setup->i2c_address) {
1759 i2c_unregister_device(codec->control_data);
1760 i2c_del_driver(&wm8753_i2c_driver);
1763 #if defined(CONFIG_SPI_MASTER)
1765 spi_unregister_driver(&wm8753_spi_driver);
1767 kfree(codec->private_data);
1773 struct snd_soc_codec_device soc_codec_dev_wm8753 = {
1774 .probe = wm8753_probe,
1775 .remove = wm8753_remove,
1776 .suspend = wm8753_suspend,
1777 .resume = wm8753_resume,
1779 EXPORT_SYMBOL_GPL(soc_codec_dev_wm8753);
1781 #if defined(CONFIG_I2C) || defined(CONFIG_I2C_MODULE)
1783 static int wm8753_i2c_probe(struct i2c_client *i2c,
1784 const struct i2c_device_id *id)
1786 struct snd_soc_device *socdev = wm8753_socdev;
1787 struct snd_soc_codec *codec = socdev->card->codec;
1790 i2c_set_clientdata(i2c, codec);
1791 codec->control_data = i2c;
1793 ret = wm8753_init(socdev);
1795 pr_err("failed to initialise WM8753\n");
1800 static int wm8753_i2c_remove(struct i2c_client *client)
1802 struct snd_soc_codec *codec = i2c_get_clientdata(client);
1803 kfree(codec->reg_cache);
1807 static const struct i2c_device_id wm8753_i2c_id[] = {
1811 MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id);
1813 static struct i2c_driver wm8753_i2c_driver = {
1815 .name = "WM8753 I2C Codec",
1816 .owner = THIS_MODULE,
1818 .probe = wm8753_i2c_probe,
1819 .remove = wm8753_i2c_remove,
1820 .id_table = wm8753_i2c_id,
1824 #if defined(CONFIG_SPI_MASTER)
1825 static int wm8753_spi_write(struct spi_device *spi, const char *data, int len)
1827 struct spi_transfer t;
1828 struct spi_message m;
1837 spi_message_init(&m);
1838 memset(&t, 0, (sizeof t));
1843 spi_message_add_tail(&t, &m);
1849 static int __devinit wm8753_spi_probe(struct spi_device *spi)
1851 struct snd_soc_device *socdev = wm8753_socdev;
1852 struct snd_soc_codec *codec = socdev->card->codec;
1855 codec->control_data = spi;
1857 ret = wm8753_init(socdev);
1859 dev_err(&spi->dev, "failed to initialise WM8753\n");
1864 static int __devexit wm8753_spi_remove(struct spi_device *spi)
1869 static struct spi_driver wm8753_spi_driver = {
1872 .bus = &spi_bus_type,
1873 .owner = THIS_MODULE,
1875 .probe = wm8753_spi_probe,
1876 .remove = __devexit_p(wm8753_spi_remove),
1880 static int __init wm8753_modinit(void)
1882 return snd_soc_register_dais(wm8753_dai, ARRAY_SIZE(wm8753_dai));
1884 module_init(wm8753_modinit);
1886 static void __exit wm8753_exit(void)
1888 snd_soc_unregister_dais(wm8753_dai, ARRAY_SIZE(wm8753_dai));
1890 module_exit(wm8753_exit);
1892 MODULE_DESCRIPTION("ASoC WM8753 driver");
1893 MODULE_AUTHOR("Liam Girdwood");
1894 MODULE_LICENSE("GPL");