1// SPDX-License-Identifier: GPL-2.0-or-later
2/*
3 * wm8753.c -- WM8753 ALSA Soc Audio driver
4 *
5 * Copyright 2003-11 Wolfson Microelectronics PLC.
6 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
7 *
8 * Notes:
9 * The WM8753 is a low power, high quality stereo codec with integrated PCM
10 * codec designed for portable digital telephony applications.
11 *
12 * Dual DAI:-
13 *
14 * This driver support 2 DAI PCM's. This makes the default PCM available for
15 * HiFi audio (e.g. MP3, ogg) playback/capture and the other PCM available for
16 * voice.
17 *
18 * Please note that the voice PCM can be connected directly to a Bluetooth
19 * codec or GSM modem and thus cannot be read or written to, although it is
20 * available to be configured with snd_hw_params(), etc and kcontrols in the
21 * normal alsa manner.
22 *
23 * Fast DAI switching:-
24 *
25 * The driver can now fast switch between the DAI configurations via a
26 * an alsa kcontrol. This allows the PCM to remain open.
27 */
28
29#include <linux/mod_devicetable.h>
30#include <linux/module.h>
31#include <linux/kernel.h>
32#include <linux/init.h>
33#include <linux/delay.h>
34#include <linux/pm.h>
35#include <linux/i2c.h>
36#include <linux/regmap.h>
37#include <linux/spi/spi.h>
38#include <linux/slab.h>
39#include <sound/core.h>
40#include <sound/pcm.h>
41#include <sound/pcm_params.h>
42#include <sound/soc.h>
43#include <sound/initval.h>
44#include <sound/tlv.h>
45#include <asm/div64.h>
46
47#include "wm8753.h"
48
49static int caps_charge = 2000;
50module_param(caps_charge, int, 0);
51MODULE_PARM_DESC(caps_charge, "WM8753 cap charge time (msecs)");
52
53static int wm8753_hifi_write_dai_fmt(struct snd_soc_component *component,
54 unsigned int fmt);
55static int wm8753_voice_write_dai_fmt(struct snd_soc_component *component,
56 unsigned int fmt);
57
58/*
59 * wm8753 register cache
60 * We can't read the WM8753 register space when we
61 * are using 2 wire for device control, so we cache them instead.
62 */
63static const struct reg_default wm8753_reg_defaults[] = {
64 { 0x00, 0x0000 },
65 { 0x01, 0x0008 },
66 { 0x02, 0x0000 },
67 { 0x03, 0x000a },
68 { 0x04, 0x000a },
69 { 0x05, 0x0033 },
70 { 0x06, 0x0000 },
71 { 0x07, 0x0007 },
72 { 0x08, 0x00ff },
73 { 0x09, 0x00ff },
74 { 0x0a, 0x000f },
75 { 0x0b, 0x000f },
76 { 0x0c, 0x007b },
77 { 0x0d, 0x0000 },
78 { 0x0e, 0x0032 },
79 { 0x0f, 0x0000 },
80 { 0x10, 0x00c3 },
81 { 0x11, 0x00c3 },
82 { 0x12, 0x00c0 },
83 { 0x13, 0x0000 },
84 { 0x14, 0x0000 },
85 { 0x15, 0x0000 },
86 { 0x16, 0x0000 },
87 { 0x17, 0x0000 },
88 { 0x18, 0x0000 },
89 { 0x19, 0x0000 },
90 { 0x1a, 0x0000 },
91 { 0x1b, 0x0000 },
92 { 0x1c, 0x0000 },
93 { 0x1d, 0x0000 },
94 { 0x1e, 0x0000 },
95 { 0x1f, 0x0000 },
96 { 0x20, 0x0055 },
97 { 0x21, 0x0005 },
98 { 0x22, 0x0050 },
99 { 0x23, 0x0055 },
100 { 0x24, 0x0050 },
101 { 0x25, 0x0055 },
102 { 0x26, 0x0050 },
103 { 0x27, 0x0055 },
104 { 0x28, 0x0079 },
105 { 0x29, 0x0079 },
106 { 0x2a, 0x0079 },
107 { 0x2b, 0x0079 },
108 { 0x2c, 0x0079 },
109 { 0x2d, 0x0000 },
110 { 0x2e, 0x0000 },
111 { 0x2f, 0x0000 },
112 { 0x30, 0x0000 },
113 { 0x31, 0x0097 },
114 { 0x32, 0x0097 },
115 { 0x33, 0x0000 },
116 { 0x34, 0x0004 },
117 { 0x35, 0x0000 },
118 { 0x36, 0x0083 },
119 { 0x37, 0x0024 },
120 { 0x38, 0x01ba },
121 { 0x39, 0x0000 },
122 { 0x3a, 0x0083 },
123 { 0x3b, 0x0024 },
124 { 0x3c, 0x01ba },
125 { 0x3d, 0x0000 },
126 { 0x3e, 0x0000 },
127 { 0x3f, 0x0000 },
128};
129
130static bool wm8753_volatile(struct device *dev, unsigned int reg)
131{
132 return reg == WM8753_RESET;
133}
134
135/* codec private data */
136struct wm8753_priv {
137 struct regmap *regmap;
138 unsigned int sysclk;
139 unsigned int pcmclk;
140
141 unsigned int voice_fmt;
142 unsigned int hifi_fmt;
143
144 int dai_func;
145 struct delayed_work charge_work;
146};
147
148#define wm8753_reset(c) snd_soc_component_write(c, WM8753_RESET, 0)
149
150/*
151 * WM8753 Controls
152 */
153static const char *wm8753_base[] = {"Linear Control", "Adaptive Boost"};
154static const char *wm8753_base_filter[] =
155 {"130Hz @ 48kHz", "200Hz @ 48kHz", "100Hz @ 16kHz", "400Hz @ 48kHz",
156 "100Hz @ 8kHz", "200Hz @ 8kHz"};
157static const char *wm8753_treble[] = {"8kHz", "4kHz"};
158static const char *wm8753_alc_func[] = {"Off", "Right", "Left", "Stereo"};
159static const char *wm8753_ng_type[] = {"Constant PGA Gain", "Mute ADC Output"};
160static const char *wm8753_3d_func[] = {"Capture", "Playback"};
161static const char *wm8753_3d_uc[] = {"2.2kHz", "1.5kHz"};
162static const char *wm8753_3d_lc[] = {"200Hz", "500Hz"};
163static const char *wm8753_deemp[] = {"None", "32kHz", "44.1kHz", "48kHz"};
164static const char *wm8753_mono_mix[] = {"Stereo", "Left", "Right", "Mono"};
165static const char *wm8753_dac_phase[] = {"Non Inverted", "Inverted"};
166static const char *wm8753_line_mix[] = {"Line 1 + 2", "Line 1 - 2",
167 "Line 1", "Line 2"};
168static const char *wm8753_mono_mux[] = {"Line Mix", "Rx Mix"};
169static const char *wm8753_right_mux[] = {"Line 2", "Rx Mix"};
170static const char *wm8753_left_mux[] = {"Line 1", "Rx Mix"};
171static const char *wm8753_rxmsel[] = {"RXP - RXN", "RXP + RXN", "RXP", "RXN"};
172static const char *wm8753_sidetone_mux[] = {"Left PGA", "Mic 1", "Mic 2",
173 "Right PGA"};
174static const char *wm8753_mono2_src[] = {"Inverted Mono 1", "Left", "Right",
175 "Left + Right"};
176static const char *wm8753_out3[] = {"VREF", "ROUT2", "Left + Right"};
177static const char *wm8753_out4[] = {"VREF", "Capture ST", "LOUT2"};
178static const char *wm8753_radcsel[] = {"PGA", "Line or RXP-RXN", "Sidetone"};
179static const char *wm8753_ladcsel[] = {"PGA", "Line or RXP-RXN", "Line"};
180static const char *wm8753_mono_adc[] = {"Stereo", "Analogue Mix Left",
181 "Analogue Mix Right", "Digital Mono Mix"};
182static const char *wm8753_adc_hp[] = {"3.4Hz @ 48kHz", "82Hz @ 16k",
183 "82Hz @ 8kHz", "170Hz @ 8kHz"};
184static const char *wm8753_adc_filter[] = {"HiFi", "Voice"};
185static const char *wm8753_mic_sel[] = {"Mic 1", "Mic 2", "Mic 3"};
186static const char *wm8753_dai_mode[] = {"DAI 0", "DAI 1", "DAI 2", "DAI 3"};
187static const char *wm8753_dat_sel[] = {"Stereo", "Left ADC", "Right ADC",
188 "Channel Swap"};
189static const char *wm8753_rout2_phase[] = {"Non Inverted", "Inverted"};
190
191static const struct soc_enum wm8753_enum[] = {
192SOC_ENUM_SINGLE(WM8753_BASS, 7, 2, wm8753_base),
193SOC_ENUM_SINGLE(WM8753_BASS, 4, 6, wm8753_base_filter),
194SOC_ENUM_SINGLE(WM8753_TREBLE, 6, 2, wm8753_treble),
195SOC_ENUM_SINGLE(WM8753_ALC1, 7, 4, wm8753_alc_func),
196SOC_ENUM_SINGLE(WM8753_NGATE, 1, 2, wm8753_ng_type),
197SOC_ENUM_SINGLE(WM8753_3D, 7, 2, wm8753_3d_func),
198SOC_ENUM_SINGLE(WM8753_3D, 6, 2, wm8753_3d_uc),
199SOC_ENUM_SINGLE(WM8753_3D, 5, 2, wm8753_3d_lc),
200SOC_ENUM_SINGLE(WM8753_DAC, 1, 4, wm8753_deemp),
201SOC_ENUM_SINGLE(WM8753_DAC, 4, 4, wm8753_mono_mix),
202SOC_ENUM_SINGLE(WM8753_DAC, 6, 2, wm8753_dac_phase),
203SOC_ENUM_SINGLE(WM8753_INCTL1, 3, 4, wm8753_line_mix),
204SOC_ENUM_SINGLE(WM8753_INCTL1, 2, 2, wm8753_mono_mux),
205SOC_ENUM_SINGLE(WM8753_INCTL1, 1, 2, wm8753_right_mux),
206SOC_ENUM_SINGLE(WM8753_INCTL1, 0, 2, wm8753_left_mux),
207SOC_ENUM_SINGLE(WM8753_INCTL2, 6, 4, wm8753_rxmsel),
208SOC_ENUM_SINGLE(WM8753_INCTL2, 4, 4, wm8753_sidetone_mux),
209SOC_ENUM_SINGLE(WM8753_OUTCTL, 7, 4, wm8753_mono2_src),
210SOC_ENUM_SINGLE(WM8753_OUTCTL, 0, 3, wm8753_out3),
211SOC_ENUM_SINGLE(WM8753_ADCTL2, 7, 3, wm8753_out4),
212SOC_ENUM_SINGLE(WM8753_ADCIN, 2, 3, wm8753_radcsel),
213SOC_ENUM_SINGLE(WM8753_ADCIN, 0, 3, wm8753_ladcsel),
214SOC_ENUM_SINGLE(WM8753_ADCIN, 4, 4, wm8753_mono_adc),
215SOC_ENUM_SINGLE(WM8753_ADC, 2, 4, wm8753_adc_hp),
216SOC_ENUM_SINGLE(WM8753_ADC, 4, 2, wm8753_adc_filter),
217SOC_ENUM_SINGLE(WM8753_MICBIAS, 6, 3, wm8753_mic_sel),
218SOC_ENUM_SINGLE(WM8753_IOCTL, 2, 4, wm8753_dai_mode),
219SOC_ENUM_SINGLE(WM8753_ADC, 7, 4, wm8753_dat_sel),
220SOC_ENUM_SINGLE(WM8753_OUTCTL, 2, 2, wm8753_rout2_phase),
221};
222
223
224static int wm8753_get_dai(struct snd_kcontrol *kcontrol,
225 struct snd_ctl_elem_value *ucontrol)
226{
227 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
228 struct wm8753_priv *wm8753 = snd_soc_component_get_drvdata(c: component);
229
230 ucontrol->value.enumerated.item[0] = wm8753->dai_func;
231 return 0;
232}
233
234static int wm8753_set_dai(struct snd_kcontrol *kcontrol,
235 struct snd_ctl_elem_value *ucontrol)
236{
237 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
238 struct wm8753_priv *wm8753 = snd_soc_component_get_drvdata(c: component);
239 u16 ioctl;
240
241 if (wm8753->dai_func == ucontrol->value.enumerated.item[0])
242 return 0;
243
244 if (snd_soc_component_active(component))
245 return -EBUSY;
246
247 ioctl = snd_soc_component_read(component, WM8753_IOCTL);
248
249 wm8753->dai_func = ucontrol->value.enumerated.item[0];
250
251 if (((ioctl >> 2) & 0x3) == wm8753->dai_func)
252 return 1;
253
254 ioctl = (ioctl & 0x1f3) | (wm8753->dai_func << 2);
255 snd_soc_component_write(component, WM8753_IOCTL, val: ioctl);
256
257
258 wm8753_hifi_write_dai_fmt(component, fmt: wm8753->hifi_fmt);
259 wm8753_voice_write_dai_fmt(component, fmt: wm8753->voice_fmt);
260
261 return 1;
262}
263
264static const DECLARE_TLV_DB_SCALE(rec_mix_tlv, -1500, 300, 0);
265static const DECLARE_TLV_DB_SCALE(mic_preamp_tlv, 1200, 600, 0);
266static const DECLARE_TLV_DB_SCALE(adc_tlv, -9750, 50, 1);
267static const DECLARE_TLV_DB_SCALE(dac_tlv, -12750, 50, 1);
268static const DECLARE_TLV_DB_RANGE(out_tlv,
269 /* 0000000 - 0101111 = "Analogue mute" */
270 0, 48, TLV_DB_SCALE_ITEM(-25500, 0, 0),
271 48, 127, TLV_DB_SCALE_ITEM(-7300, 100, 0)
272);
273static const DECLARE_TLV_DB_SCALE(mix_tlv, -1500, 300, 0);
274static const DECLARE_TLV_DB_SCALE(voice_mix_tlv, -1200, 300, 0);
275static const DECLARE_TLV_DB_SCALE(pga_tlv, -1725, 75, 0);
276
277static const struct snd_kcontrol_new wm8753_snd_controls[] = {
278SOC_SINGLE("Hi-Fi DAC Left/Right channel Swap", WM8753_HIFI, 5, 1, 0),
279SOC_DOUBLE_R_TLV("PCM Volume", WM8753_LDAC, WM8753_RDAC, 0, 255, 0, dac_tlv),
280
281SOC_DOUBLE_R_TLV("ADC Capture Volume", WM8753_LADC, WM8753_RADC, 0, 255, 0,
282 adc_tlv),
283
284SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8753_LOUT1V, WM8753_ROUT1V,
285 0, 127, 0, out_tlv),
286SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8753_LOUT2V, WM8753_ROUT2V, 0,
287 127, 0, out_tlv),
288
289SOC_SINGLE_TLV("Mono Playback Volume", WM8753_MOUTV, 0, 127, 0, out_tlv),
290
291SOC_DOUBLE_R_TLV("Bypass Playback Volume", WM8753_LOUTM1, WM8753_ROUTM1, 4, 7,
292 1, mix_tlv),
293SOC_DOUBLE_R_TLV("Sidetone Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 4,
294 7, 1, mix_tlv),
295SOC_DOUBLE_R_TLV("Voice Playback Volume", WM8753_LOUTM2, WM8753_ROUTM2, 0, 7,
296 1, voice_mix_tlv),
297
298SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8753_LOUT1V, WM8753_ROUT1V, 7,
299 1, 0),
300SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8753_LOUT2V, WM8753_ROUT2V, 7,
301 1, 0),
302
303SOC_SINGLE_TLV("Mono Bypass Playback Volume", WM8753_MOUTM1, 4, 7, 1, mix_tlv),
304SOC_SINGLE_TLV("Mono Sidetone Playback Volume", WM8753_MOUTM2, 4, 7, 1,
305 mix_tlv),
306SOC_SINGLE_TLV("Mono Voice Playback Volume", WM8753_MOUTM2, 0, 7, 1,
307 voice_mix_tlv),
308SOC_SINGLE("Mono Playback ZC Switch", WM8753_MOUTV, 7, 1, 0),
309
310SOC_ENUM("Bass Boost", wm8753_enum[0]),
311SOC_ENUM("Bass Filter", wm8753_enum[1]),
312SOC_SINGLE("Bass Volume", WM8753_BASS, 0, 15, 1),
313
314SOC_SINGLE("Treble Volume", WM8753_TREBLE, 0, 15, 1),
315SOC_ENUM("Treble Cut-off", wm8753_enum[2]),
316
317SOC_DOUBLE_TLV("Sidetone Capture Volume", WM8753_RECMIX1, 0, 4, 7, 1,
318 rec_mix_tlv),
319SOC_SINGLE_TLV("Voice Sidetone Capture Volume", WM8753_RECMIX2, 0, 7, 1,
320 rec_mix_tlv),
321
322SOC_DOUBLE_R_TLV("Capture Volume", WM8753_LINVOL, WM8753_RINVOL, 0, 63, 0,
323 pga_tlv),
324SOC_DOUBLE_R("Capture ZC Switch", WM8753_LINVOL, WM8753_RINVOL, 6, 1, 0),
325SOC_DOUBLE_R("Capture Switch", WM8753_LINVOL, WM8753_RINVOL, 7, 1, 1),
326
327SOC_ENUM("Capture Filter Select", wm8753_enum[23]),
328SOC_ENUM("Capture Filter Cut-off", wm8753_enum[24]),
329SOC_SINGLE("Capture Filter Switch", WM8753_ADC, 0, 1, 1),
330
331SOC_SINGLE("ALC Capture Target Volume", WM8753_ALC1, 0, 7, 0),
332SOC_SINGLE("ALC Capture Max Volume", WM8753_ALC1, 4, 7, 0),
333SOC_ENUM("ALC Capture Function", wm8753_enum[3]),
334SOC_SINGLE("ALC Capture ZC Switch", WM8753_ALC2, 8, 1, 0),
335SOC_SINGLE("ALC Capture Hold Time", WM8753_ALC2, 0, 15, 1),
336SOC_SINGLE("ALC Capture Decay Time", WM8753_ALC3, 4, 15, 1),
337SOC_SINGLE("ALC Capture Attack Time", WM8753_ALC3, 0, 15, 0),
338SOC_SINGLE("ALC Capture NG Threshold", WM8753_NGATE, 3, 31, 0),
339SOC_ENUM("ALC Capture NG Type", wm8753_enum[4]),
340SOC_SINGLE("ALC Capture NG Switch", WM8753_NGATE, 0, 1, 0),
341
342SOC_ENUM("3D Function", wm8753_enum[5]),
343SOC_ENUM("3D Upper Cut-off", wm8753_enum[6]),
344SOC_ENUM("3D Lower Cut-off", wm8753_enum[7]),
345SOC_SINGLE("3D Volume", WM8753_3D, 1, 15, 0),
346SOC_SINGLE("3D Switch", WM8753_3D, 0, 1, 0),
347
348SOC_SINGLE("Capture 6dB Attenuate", WM8753_ADCTL1, 2, 1, 0),
349SOC_SINGLE("Playback 6dB Attenuate", WM8753_ADCTL1, 1, 1, 0),
350
351SOC_ENUM("De-emphasis", wm8753_enum[8]),
352SOC_ENUM("Playback Mono Mix", wm8753_enum[9]),
353SOC_ENUM("Playback Phase", wm8753_enum[10]),
354
355SOC_SINGLE_TLV("Mic2 Capture Volume", WM8753_INCTL1, 7, 3, 0, mic_preamp_tlv),
356SOC_SINGLE_TLV("Mic1 Capture Volume", WM8753_INCTL1, 5, 3, 0, mic_preamp_tlv),
357
358SOC_ENUM_EXT("DAI Mode", wm8753_enum[26], wm8753_get_dai, wm8753_set_dai),
359
360SOC_ENUM("ADC Data Select", wm8753_enum[27]),
361SOC_ENUM("ROUT2 Phase", wm8753_enum[28]),
362};
363
364/*
365 * _DAPM_ Controls
366 */
367
368/* Left Mixer */
369static const struct snd_kcontrol_new wm8753_left_mixer_controls[] = {
370SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_LOUTM2, 8, 1, 0),
371SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_LOUTM2, 7, 1, 0),
372SOC_DAPM_SINGLE("Left Playback Switch", WM8753_LOUTM1, 8, 1, 0),
373SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_LOUTM1, 7, 1, 0),
374};
375
376/* Right mixer */
377static const struct snd_kcontrol_new wm8753_right_mixer_controls[] = {
378SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_ROUTM2, 8, 1, 0),
379SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_ROUTM2, 7, 1, 0),
380SOC_DAPM_SINGLE("Right Playback Switch", WM8753_ROUTM1, 8, 1, 0),
381SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_ROUTM1, 7, 1, 0),
382};
383
384/* Mono mixer */
385static const struct snd_kcontrol_new wm8753_mono_mixer_controls[] = {
386SOC_DAPM_SINGLE("Left Playback Switch", WM8753_MOUTM1, 8, 1, 0),
387SOC_DAPM_SINGLE("Right Playback Switch", WM8753_MOUTM2, 8, 1, 0),
388SOC_DAPM_SINGLE("Voice Playback Switch", WM8753_MOUTM2, 3, 1, 0),
389SOC_DAPM_SINGLE("Sidetone Playback Switch", WM8753_MOUTM2, 7, 1, 0),
390SOC_DAPM_SINGLE("Bypass Playback Switch", WM8753_MOUTM1, 7, 1, 0),
391};
392
393/* Mono 2 Mux */
394static const struct snd_kcontrol_new wm8753_mono2_controls =
395SOC_DAPM_ENUM("Route", wm8753_enum[17]);
396
397/* Out 3 Mux */
398static const struct snd_kcontrol_new wm8753_out3_controls =
399SOC_DAPM_ENUM("Route", wm8753_enum[18]);
400
401/* Out 4 Mux */
402static const struct snd_kcontrol_new wm8753_out4_controls =
403SOC_DAPM_ENUM("Route", wm8753_enum[19]);
404
405/* ADC Mono Mix */
406static const struct snd_kcontrol_new wm8753_adc_mono_controls =
407SOC_DAPM_ENUM("Route", wm8753_enum[22]);
408
409/* Record mixer */
410static const struct snd_kcontrol_new wm8753_record_mixer_controls[] = {
411SOC_DAPM_SINGLE("Voice Capture Switch", WM8753_RECMIX2, 3, 1, 0),
412SOC_DAPM_SINGLE("Left Capture Switch", WM8753_RECMIX1, 3, 1, 0),
413SOC_DAPM_SINGLE("Right Capture Switch", WM8753_RECMIX1, 7, 1, 0),
414};
415
416/* Left ADC mux */
417static const struct snd_kcontrol_new wm8753_adc_left_controls =
418SOC_DAPM_ENUM("Route", wm8753_enum[21]);
419
420/* Right ADC mux */
421static const struct snd_kcontrol_new wm8753_adc_right_controls =
422SOC_DAPM_ENUM("Route", wm8753_enum[20]);
423
424/* MIC mux */
425static const struct snd_kcontrol_new wm8753_mic_mux_controls =
426SOC_DAPM_ENUM("Route", wm8753_enum[16]);
427
428/* ALC mixer */
429static const struct snd_kcontrol_new wm8753_alc_mixer_controls[] = {
430SOC_DAPM_SINGLE("Line Capture Switch", WM8753_INCTL2, 3, 1, 0),
431SOC_DAPM_SINGLE("Mic2 Capture Switch", WM8753_INCTL2, 2, 1, 0),
432SOC_DAPM_SINGLE("Mic1 Capture Switch", WM8753_INCTL2, 1, 1, 0),
433SOC_DAPM_SINGLE("Rx Capture Switch", WM8753_INCTL2, 0, 1, 0),
434};
435
436/* Left Line mux */
437static const struct snd_kcontrol_new wm8753_line_left_controls =
438SOC_DAPM_ENUM("Route", wm8753_enum[14]);
439
440/* Right Line mux */
441static const struct snd_kcontrol_new wm8753_line_right_controls =
442SOC_DAPM_ENUM("Route", wm8753_enum[13]);
443
444/* Mono Line mux */
445static const struct snd_kcontrol_new wm8753_line_mono_controls =
446SOC_DAPM_ENUM("Route", wm8753_enum[12]);
447
448/* Line mux and mixer */
449static const struct snd_kcontrol_new wm8753_line_mux_mix_controls =
450SOC_DAPM_ENUM("Route", wm8753_enum[11]);
451
452/* Rx mux and mixer */
453static const struct snd_kcontrol_new wm8753_rx_mux_mix_controls =
454SOC_DAPM_ENUM("Route", wm8753_enum[15]);
455
456/* Mic Selector Mux */
457static const struct snd_kcontrol_new wm8753_mic_sel_mux_controls =
458SOC_DAPM_ENUM("Route", wm8753_enum[25]);
459
460static const struct snd_soc_dapm_widget wm8753_dapm_widgets[] = {
461SND_SOC_DAPM_MICBIAS("Mic Bias", WM8753_PWR1, 5, 0),
462SND_SOC_DAPM_MIXER("Left Mixer", WM8753_PWR4, 0, 0,
463 &wm8753_left_mixer_controls[0], ARRAY_SIZE(wm8753_left_mixer_controls)),
464SND_SOC_DAPM_PGA("Left Out 1", WM8753_PWR3, 8, 0, NULL, 0),
465SND_SOC_DAPM_PGA("Left Out 2", WM8753_PWR3, 6, 0, NULL, 0),
466SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback", WM8753_PWR1, 3, 0),
467SND_SOC_DAPM_OUTPUT("LOUT1"),
468SND_SOC_DAPM_OUTPUT("LOUT2"),
469SND_SOC_DAPM_MIXER("Right Mixer", WM8753_PWR4, 1, 0,
470 &wm8753_right_mixer_controls[0], ARRAY_SIZE(wm8753_right_mixer_controls)),
471SND_SOC_DAPM_PGA("Right Out 1", WM8753_PWR3, 7, 0, NULL, 0),
472SND_SOC_DAPM_PGA("Right Out 2", WM8753_PWR3, 5, 0, NULL, 0),
473SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback", WM8753_PWR1, 2, 0),
474SND_SOC_DAPM_OUTPUT("ROUT1"),
475SND_SOC_DAPM_OUTPUT("ROUT2"),
476SND_SOC_DAPM_MIXER("Mono Mixer", WM8753_PWR4, 2, 0,
477 &wm8753_mono_mixer_controls[0], ARRAY_SIZE(wm8753_mono_mixer_controls)),
478SND_SOC_DAPM_PGA("Mono Out 1", WM8753_PWR3, 2, 0, NULL, 0),
479SND_SOC_DAPM_PGA("Mono Out 2", WM8753_PWR3, 1, 0, NULL, 0),
480SND_SOC_DAPM_DAC("Voice DAC", "Voice Playback", WM8753_PWR1, 4, 0),
481SND_SOC_DAPM_OUTPUT("MONO1"),
482SND_SOC_DAPM_MUX("Mono 2 Mux", SND_SOC_NOPM, 0, 0, &wm8753_mono2_controls),
483SND_SOC_DAPM_OUTPUT("MONO2"),
484SND_SOC_DAPM_MIXER("Out3 Left + Right", SND_SOC_NOPM, 0, 0, NULL, 0),
485SND_SOC_DAPM_MUX("Out3 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out3_controls),
486SND_SOC_DAPM_PGA("Out 3", WM8753_PWR3, 4, 0, NULL, 0),
487SND_SOC_DAPM_OUTPUT("OUT3"),
488SND_SOC_DAPM_MUX("Out4 Mux", SND_SOC_NOPM, 0, 0, &wm8753_out4_controls),
489SND_SOC_DAPM_PGA("Out 4", WM8753_PWR3, 3, 0, NULL, 0),
490SND_SOC_DAPM_OUTPUT("OUT4"),
491SND_SOC_DAPM_MIXER("Playback Mixer", WM8753_PWR4, 3, 0,
492 &wm8753_record_mixer_controls[0],
493 ARRAY_SIZE(wm8753_record_mixer_controls)),
494SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8753_PWR2, 3, 0),
495SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8753_PWR2, 2, 0),
496SND_SOC_DAPM_MUX("Capture Left Mixer", SND_SOC_NOPM, 0, 0,
497 &wm8753_adc_mono_controls),
498SND_SOC_DAPM_MUX("Capture Right Mixer", SND_SOC_NOPM, 0, 0,
499 &wm8753_adc_mono_controls),
500SND_SOC_DAPM_MUX("Capture Left Mux", SND_SOC_NOPM, 0, 0,
501 &wm8753_adc_left_controls),
502SND_SOC_DAPM_MUX("Capture Right Mux", SND_SOC_NOPM, 0, 0,
503 &wm8753_adc_right_controls),
504SND_SOC_DAPM_MUX("Mic Sidetone Mux", SND_SOC_NOPM, 0, 0,
505 &wm8753_mic_mux_controls),
506SND_SOC_DAPM_PGA("Left Capture Volume", WM8753_PWR2, 5, 0, NULL, 0),
507SND_SOC_DAPM_PGA("Right Capture Volume", WM8753_PWR2, 4, 0, NULL, 0),
508SND_SOC_DAPM_MIXER("ALC Mixer", WM8753_PWR2, 6, 0,
509 &wm8753_alc_mixer_controls[0], ARRAY_SIZE(wm8753_alc_mixer_controls)),
510SND_SOC_DAPM_MUX("Line Left Mux", SND_SOC_NOPM, 0, 0,
511 &wm8753_line_left_controls),
512SND_SOC_DAPM_MUX("Line Right Mux", SND_SOC_NOPM, 0, 0,
513 &wm8753_line_right_controls),
514SND_SOC_DAPM_MUX("Line Mono Mux", SND_SOC_NOPM, 0, 0,
515 &wm8753_line_mono_controls),
516SND_SOC_DAPM_MUX("Line Mixer", WM8753_PWR2, 0, 0,
517 &wm8753_line_mux_mix_controls),
518SND_SOC_DAPM_MUX("Rx Mixer", WM8753_PWR2, 1, 0,
519 &wm8753_rx_mux_mix_controls),
520SND_SOC_DAPM_PGA("Mic 1 Volume", WM8753_PWR2, 8, 0, NULL, 0),
521SND_SOC_DAPM_PGA("Mic 2 Volume", WM8753_PWR2, 7, 0, NULL, 0),
522SND_SOC_DAPM_MUX("Mic Selection Mux", SND_SOC_NOPM, 0, 0,
523 &wm8753_mic_sel_mux_controls),
524SND_SOC_DAPM_INPUT("LINE1"),
525SND_SOC_DAPM_INPUT("LINE2"),
526SND_SOC_DAPM_INPUT("RXP"),
527SND_SOC_DAPM_INPUT("RXN"),
528SND_SOC_DAPM_INPUT("ACIN"),
529SND_SOC_DAPM_OUTPUT("ACOP"),
530SND_SOC_DAPM_INPUT("MIC1N"),
531SND_SOC_DAPM_INPUT("MIC1"),
532SND_SOC_DAPM_INPUT("MIC2N"),
533SND_SOC_DAPM_INPUT("MIC2"),
534SND_SOC_DAPM_VMID("VREF"),
535};
536
537static const struct snd_soc_dapm_route wm8753_dapm_routes[] = {
538 /* left mixer */
539 {"Left Mixer", "Left Playback Switch", "Left DAC"},
540 {"Left Mixer", "Voice Playback Switch", "Voice DAC"},
541 {"Left Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
542 {"Left Mixer", "Bypass Playback Switch", "Line Left Mux"},
543
544 /* right mixer */
545 {"Right Mixer", "Right Playback Switch", "Right DAC"},
546 {"Right Mixer", "Voice Playback Switch", "Voice DAC"},
547 {"Right Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
548 {"Right Mixer", "Bypass Playback Switch", "Line Right Mux"},
549
550 /* mono mixer */
551 {"Mono Mixer", "Voice Playback Switch", "Voice DAC"},
552 {"Mono Mixer", "Left Playback Switch", "Left DAC"},
553 {"Mono Mixer", "Right Playback Switch", "Right DAC"},
554 {"Mono Mixer", "Sidetone Playback Switch", "Mic Sidetone Mux"},
555 {"Mono Mixer", "Bypass Playback Switch", "Line Mono Mux"},
556
557 /* left out */
558 {"Left Out 1", NULL, "Left Mixer"},
559 {"Left Out 2", NULL, "Left Mixer"},
560 {"LOUT1", NULL, "Left Out 1"},
561 {"LOUT2", NULL, "Left Out 2"},
562
563 /* right out */
564 {"Right Out 1", NULL, "Right Mixer"},
565 {"Right Out 2", NULL, "Right Mixer"},
566 {"ROUT1", NULL, "Right Out 1"},
567 {"ROUT2", NULL, "Right Out 2"},
568
569 /* mono 1 out */
570 {"Mono Out 1", NULL, "Mono Mixer"},
571 {"MONO1", NULL, "Mono Out 1"},
572
573 /* mono 2 out */
574 {"Mono 2 Mux", "Left + Right", "Out3 Left + Right"},
575 {"Mono 2 Mux", "Inverted Mono 1", "MONO1"},
576 {"Mono 2 Mux", "Left", "Left Mixer"},
577 {"Mono 2 Mux", "Right", "Right Mixer"},
578 {"Mono Out 2", NULL, "Mono 2 Mux"},
579 {"MONO2", NULL, "Mono Out 2"},
580
581 /* out 3 */
582 {"Out3 Left + Right", NULL, "Left Mixer"},
583 {"Out3 Left + Right", NULL, "Right Mixer"},
584 {"Out3 Mux", "VREF", "VREF"},
585 {"Out3 Mux", "Left + Right", "Out3 Left + Right"},
586 {"Out3 Mux", "ROUT2", "ROUT2"},
587 {"Out 3", NULL, "Out3 Mux"},
588 {"OUT3", NULL, "Out 3"},
589
590 /* out 4 */
591 {"Out4 Mux", "VREF", "VREF"},
592 {"Out4 Mux", "Capture ST", "Playback Mixer"},
593 {"Out4 Mux", "LOUT2", "LOUT2"},
594 {"Out 4", NULL, "Out4 Mux"},
595 {"OUT4", NULL, "Out 4"},
596
597 /* record mixer */
598 {"Playback Mixer", "Left Capture Switch", "Left Mixer"},
599 {"Playback Mixer", "Voice Capture Switch", "Mono Mixer"},
600 {"Playback Mixer", "Right Capture Switch", "Right Mixer"},
601
602 /* Mic/SideTone Mux */
603 {"Mic Sidetone Mux", "Left PGA", "Left Capture Volume"},
604 {"Mic Sidetone Mux", "Right PGA", "Right Capture Volume"},
605 {"Mic Sidetone Mux", "Mic 1", "Mic 1 Volume"},
606 {"Mic Sidetone Mux", "Mic 2", "Mic 2 Volume"},
607
608 /* Capture Left Mux */
609 {"Capture Left Mux", "PGA", "Left Capture Volume"},
610 {"Capture Left Mux", "Line or RXP-RXN", "Line Left Mux"},
611 {"Capture Left Mux", "Line", "LINE1"},
612
613 /* Capture Right Mux */
614 {"Capture Right Mux", "PGA", "Right Capture Volume"},
615 {"Capture Right Mux", "Line or RXP-RXN", "Line Right Mux"},
616 {"Capture Right Mux", "Sidetone", "Playback Mixer"},
617
618 /* Mono Capture mixer-mux */
619 {"Capture Right Mixer", "Stereo", "Capture Right Mux"},
620 {"Capture Left Mixer", "Stereo", "Capture Left Mux"},
621 {"Capture Left Mixer", "Analogue Mix Left", "Capture Left Mux"},
622 {"Capture Left Mixer", "Analogue Mix Left", "Capture Right Mux"},
623 {"Capture Right Mixer", "Analogue Mix Right", "Capture Left Mux"},
624 {"Capture Right Mixer", "Analogue Mix Right", "Capture Right Mux"},
625 {"Capture Left Mixer", "Digital Mono Mix", "Capture Left Mux"},
626 {"Capture Left Mixer", "Digital Mono Mix", "Capture Right Mux"},
627 {"Capture Right Mixer", "Digital Mono Mix", "Capture Left Mux"},
628 {"Capture Right Mixer", "Digital Mono Mix", "Capture Right Mux"},
629
630 /* ADC */
631 {"Left ADC", NULL, "Capture Left Mixer"},
632 {"Right ADC", NULL, "Capture Right Mixer"},
633
634 /* Left Capture Volume */
635 {"Left Capture Volume", NULL, "ACIN"},
636
637 /* Right Capture Volume */
638 {"Right Capture Volume", NULL, "Mic 2 Volume"},
639
640 /* ALC Mixer */
641 {"ALC Mixer", "Line Capture Switch", "Line Mixer"},
642 {"ALC Mixer", "Mic2 Capture Switch", "Mic 2 Volume"},
643 {"ALC Mixer", "Mic1 Capture Switch", "Mic 1 Volume"},
644 {"ALC Mixer", "Rx Capture Switch", "Rx Mixer"},
645
646 /* Line Left Mux */
647 {"Line Left Mux", "Line 1", "LINE1"},
648 {"Line Left Mux", "Rx Mix", "Rx Mixer"},
649
650 /* Line Right Mux */
651 {"Line Right Mux", "Line 2", "LINE2"},
652 {"Line Right Mux", "Rx Mix", "Rx Mixer"},
653
654 /* Line Mono Mux */
655 {"Line Mono Mux", "Line Mix", "Line Mixer"},
656 {"Line Mono Mux", "Rx Mix", "Rx Mixer"},
657
658 /* Line Mixer/Mux */
659 {"Line Mixer", "Line 1 + 2", "LINE1"},
660 {"Line Mixer", "Line 1 - 2", "LINE1"},
661 {"Line Mixer", "Line 1 + 2", "LINE2"},
662 {"Line Mixer", "Line 1 - 2", "LINE2"},
663 {"Line Mixer", "Line 1", "LINE1"},
664 {"Line Mixer", "Line 2", "LINE2"},
665
666 /* Rx Mixer/Mux */
667 {"Rx Mixer", "RXP - RXN", "RXP"},
668 {"Rx Mixer", "RXP + RXN", "RXP"},
669 {"Rx Mixer", "RXP - RXN", "RXN"},
670 {"Rx Mixer", "RXP + RXN", "RXN"},
671 {"Rx Mixer", "RXP", "RXP"},
672 {"Rx Mixer", "RXN", "RXN"},
673
674 /* Mic 1 Volume */
675 {"Mic 1 Volume", NULL, "MIC1N"},
676 {"Mic 1 Volume", NULL, "Mic Selection Mux"},
677
678 /* Mic 2 Volume */
679 {"Mic 2 Volume", NULL, "MIC2N"},
680 {"Mic 2 Volume", NULL, "MIC2"},
681
682 /* Mic Selector Mux */
683 {"Mic Selection Mux", "Mic 1", "MIC1"},
684 {"Mic Selection Mux", "Mic 2", "MIC2N"},
685 {"Mic Selection Mux", "Mic 3", "MIC2"},
686
687 /* ACOP */
688 {"ACOP", NULL, "ALC Mixer"},
689};
690
691/* PLL divisors */
692struct _pll_div {
693 u32 div2:1;
694 u32 n:4;
695 u32 k:24;
696};
697
698/* The size in bits of the pll divide multiplied by 10
699 * to allow rounding later */
700#define FIXED_PLL_SIZE ((1 << 22) * 10)
701
702static void pll_factors(struct _pll_div *pll_div, unsigned int target,
703 unsigned int source)
704{
705 u64 Kpart;
706 unsigned int K, Ndiv, Nmod;
707
708 Ndiv = target / source;
709 if (Ndiv < 6) {
710 source >>= 1;
711 pll_div->div2 = 1;
712 Ndiv = target / source;
713 } else
714 pll_div->div2 = 0;
715
716 if ((Ndiv < 6) || (Ndiv > 12))
717 printk(KERN_WARNING
718 "wm8753: unsupported N = %u\n", Ndiv);
719
720 pll_div->n = Ndiv;
721 Nmod = target % source;
722 Kpart = FIXED_PLL_SIZE * (long long)Nmod;
723
724 do_div(Kpart, source);
725
726 K = Kpart & 0xFFFFFFFF;
727
728 /* Check if we need to round */
729 if ((K % 10) >= 5)
730 K += 5;
731
732 /* Move down to proper range now rounding is done */
733 K /= 10;
734
735 pll_div->k = K;
736}
737
738static int wm8753_set_dai_pll(struct snd_soc_dai *codec_dai, int pll_id,
739 int source, unsigned int freq_in, unsigned int freq_out)
740{
741 u16 reg, enable;
742 int offset;
743 struct snd_soc_component *component = codec_dai->component;
744
745 if (pll_id < WM8753_PLL1 || pll_id > WM8753_PLL2)
746 return -ENODEV;
747
748 if (pll_id == WM8753_PLL1) {
749 offset = 0;
750 enable = 0x10;
751 reg = snd_soc_component_read(component, WM8753_CLOCK) & 0xffef;
752 } else {
753 offset = 4;
754 enable = 0x8;
755 reg = snd_soc_component_read(component, WM8753_CLOCK) & 0xfff7;
756 }
757
758 if (!freq_in || !freq_out) {
759 /* disable PLL */
760 snd_soc_component_write(component, WM8753_PLL1CTL1 + offset, val: 0x0026);
761 snd_soc_component_write(component, WM8753_CLOCK, val: reg);
762 return 0;
763 } else {
764 u16 value = 0;
765 struct _pll_div pll_div;
766
767 pll_factors(pll_div: &pll_div, target: freq_out * 8, source: freq_in);
768
769 /* set up N and K PLL divisor ratios */
770 /* bits 8:5 = PLL_N, bits 3:0 = PLL_K[21:18] */
771 value = (pll_div.n << 5) + ((pll_div.k & 0x3c0000) >> 18);
772 snd_soc_component_write(component, WM8753_PLL1CTL2 + offset, val: value);
773
774 /* bits 8:0 = PLL_K[17:9] */
775 value = (pll_div.k & 0x03fe00) >> 9;
776 snd_soc_component_write(component, WM8753_PLL1CTL3 + offset, val: value);
777
778 /* bits 8:0 = PLL_K[8:0] */
779 value = pll_div.k & 0x0001ff;
780 snd_soc_component_write(component, WM8753_PLL1CTL4 + offset, val: value);
781
782 /* set PLL as input and enable */
783 snd_soc_component_write(component, WM8753_PLL1CTL1 + offset, val: 0x0027 |
784 (pll_div.div2 << 3));
785 snd_soc_component_write(component, WM8753_CLOCK, val: reg | enable);
786 }
787 return 0;
788}
789
790struct _coeff_div {
791 u32 mclk;
792 u32 rate;
793 u8 sr:5;
794 u8 usb:1;
795};
796
797/* codec hifi mclk (after PLL) clock divider coefficients */
798static const struct _coeff_div coeff_div[] = {
799 /* 8k */
800 {12288000, 8000, 0x6, 0x0},
801 {11289600, 8000, 0x16, 0x0},
802 {18432000, 8000, 0x7, 0x0},
803 {16934400, 8000, 0x17, 0x0},
804 {12000000, 8000, 0x6, 0x1},
805
806 /* 11.025k */
807 {11289600, 11025, 0x18, 0x0},
808 {16934400, 11025, 0x19, 0x0},
809 {12000000, 11025, 0x19, 0x1},
810
811 /* 16k */
812 {12288000, 16000, 0xa, 0x0},
813 {18432000, 16000, 0xb, 0x0},
814 {12000000, 16000, 0xa, 0x1},
815
816 /* 22.05k */
817 {11289600, 22050, 0x1a, 0x0},
818 {16934400, 22050, 0x1b, 0x0},
819 {12000000, 22050, 0x1b, 0x1},
820
821 /* 32k */
822 {12288000, 32000, 0xc, 0x0},
823 {18432000, 32000, 0xd, 0x0},
824 {12000000, 32000, 0xa, 0x1},
825
826 /* 44.1k */
827 {11289600, 44100, 0x10, 0x0},
828 {16934400, 44100, 0x11, 0x0},
829 {12000000, 44100, 0x11, 0x1},
830
831 /* 48k */
832 {12288000, 48000, 0x0, 0x0},
833 {18432000, 48000, 0x1, 0x0},
834 {12000000, 48000, 0x0, 0x1},
835
836 /* 88.2k */
837 {11289600, 88200, 0x1e, 0x0},
838 {16934400, 88200, 0x1f, 0x0},
839 {12000000, 88200, 0x1f, 0x1},
840
841 /* 96k */
842 {12288000, 96000, 0xe, 0x0},
843 {18432000, 96000, 0xf, 0x0},
844 {12000000, 96000, 0xe, 0x1},
845};
846
847static int get_coeff(int mclk, int rate)
848{
849 int i;
850
851 for (i = 0; i < ARRAY_SIZE(coeff_div); i++) {
852 if (coeff_div[i].rate == rate && coeff_div[i].mclk == mclk)
853 return i;
854 }
855 return -EINVAL;
856}
857
858/*
859 * Clock after PLL and dividers
860 */
861static int wm8753_set_dai_sysclk(struct snd_soc_dai *codec_dai,
862 int clk_id, unsigned int freq, int dir)
863{
864 struct snd_soc_component *component = codec_dai->component;
865 struct wm8753_priv *wm8753 = snd_soc_component_get_drvdata(c: component);
866
867 switch (freq) {
868 case 11289600:
869 case 12000000:
870 case 12288000:
871 case 16934400:
872 case 18432000:
873 if (clk_id == WM8753_MCLK) {
874 wm8753->sysclk = freq;
875 return 0;
876 } else if (clk_id == WM8753_PCMCLK) {
877 wm8753->pcmclk = freq;
878 return 0;
879 }
880 break;
881 }
882 return -EINVAL;
883}
884
885/*
886 * Set's ADC and Voice DAC format.
887 */
888static int wm8753_vdac_adc_set_dai_fmt(struct snd_soc_component *component,
889 unsigned int fmt)
890{
891 u16 voice = snd_soc_component_read(component, WM8753_PCM) & 0x01ec;
892
893 /* interface format */
894 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
895 case SND_SOC_DAIFMT_I2S:
896 voice |= 0x0002;
897 break;
898 case SND_SOC_DAIFMT_RIGHT_J:
899 break;
900 case SND_SOC_DAIFMT_LEFT_J:
901 voice |= 0x0001;
902 break;
903 case SND_SOC_DAIFMT_DSP_A:
904 voice |= 0x0003;
905 break;
906 case SND_SOC_DAIFMT_DSP_B:
907 voice |= 0x0013;
908 break;
909 default:
910 return -EINVAL;
911 }
912
913 snd_soc_component_write(component, WM8753_PCM, val: voice);
914 return 0;
915}
916
917/*
918 * Set PCM DAI bit size and sample rate.
919 */
920static int wm8753_pcm_hw_params(struct snd_pcm_substream *substream,
921 struct snd_pcm_hw_params *params,
922 struct snd_soc_dai *dai)
923{
924 struct snd_soc_component *component = dai->component;
925 struct wm8753_priv *wm8753 = snd_soc_component_get_drvdata(c: component);
926 u16 voice = snd_soc_component_read(component, WM8753_PCM) & 0x01f3;
927 u16 srate = snd_soc_component_read(component, WM8753_SRATE1) & 0x017f;
928
929 /* bit size */
930 switch (params_width(p: params)) {
931 case 16:
932 break;
933 case 20:
934 voice |= 0x0004;
935 break;
936 case 24:
937 voice |= 0x0008;
938 break;
939 case 32:
940 voice |= 0x000c;
941 break;
942 }
943
944 /* sample rate */
945 if (params_rate(p: params) * 384 == wm8753->pcmclk)
946 srate |= 0x80;
947 snd_soc_component_write(component, WM8753_SRATE1, val: srate);
948
949 snd_soc_component_write(component, WM8753_PCM, val: voice);
950 return 0;
951}
952
953/*
954 * Set's PCM dai fmt and BCLK.
955 */
956static int wm8753_pcm_set_dai_fmt(struct snd_soc_component *component,
957 unsigned int fmt)
958{
959 u16 voice, ioctl;
960
961 voice = snd_soc_component_read(component, WM8753_PCM) & 0x011f;
962 ioctl = snd_soc_component_read(component, WM8753_IOCTL) & 0x015d;
963
964 /* set master/slave audio interface */
965 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
966 case SND_SOC_DAIFMT_CBC_CFC:
967 break;
968 case SND_SOC_DAIFMT_CBP_CFP:
969 ioctl |= 0x2;
970 fallthrough;
971 case SND_SOC_DAIFMT_CBP_CFC:
972 voice |= 0x0040;
973 break;
974 default:
975 return -EINVAL;
976 }
977
978 /* clock inversion */
979 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
980 case SND_SOC_DAIFMT_DSP_A:
981 case SND_SOC_DAIFMT_DSP_B:
982 /* frame inversion not valid for DSP modes */
983 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
984 case SND_SOC_DAIFMT_NB_NF:
985 break;
986 case SND_SOC_DAIFMT_IB_NF:
987 voice |= 0x0080;
988 break;
989 default:
990 return -EINVAL;
991 }
992 break;
993 case SND_SOC_DAIFMT_I2S:
994 case SND_SOC_DAIFMT_RIGHT_J:
995 case SND_SOC_DAIFMT_LEFT_J:
996 voice &= ~0x0010;
997 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
998 case SND_SOC_DAIFMT_NB_NF:
999 break;
1000 case SND_SOC_DAIFMT_IB_IF:
1001 voice |= 0x0090;
1002 break;
1003 case SND_SOC_DAIFMT_IB_NF:
1004 voice |= 0x0080;
1005 break;
1006 case SND_SOC_DAIFMT_NB_IF:
1007 voice |= 0x0010;
1008 break;
1009 default:
1010 return -EINVAL;
1011 }
1012 break;
1013 default:
1014 return -EINVAL;
1015 }
1016
1017 snd_soc_component_write(component, WM8753_PCM, val: voice);
1018 snd_soc_component_write(component, WM8753_IOCTL, val: ioctl);
1019 return 0;
1020}
1021
1022static int wm8753_set_dai_clkdiv(struct snd_soc_dai *codec_dai,
1023 int div_id, int div)
1024{
1025 struct snd_soc_component *component = codec_dai->component;
1026 u16 reg;
1027
1028 switch (div_id) {
1029 case WM8753_PCMDIV:
1030 reg = snd_soc_component_read(component, WM8753_CLOCK) & 0x003f;
1031 snd_soc_component_write(component, WM8753_CLOCK, val: reg | div);
1032 break;
1033 case WM8753_BCLKDIV:
1034 reg = snd_soc_component_read(component, WM8753_SRATE2) & 0x01c7;
1035 snd_soc_component_write(component, WM8753_SRATE2, val: reg | div);
1036 break;
1037 case WM8753_VXCLKDIV:
1038 reg = snd_soc_component_read(component, WM8753_SRATE2) & 0x003f;
1039 snd_soc_component_write(component, WM8753_SRATE2, val: reg | div);
1040 break;
1041 default:
1042 return -EINVAL;
1043 }
1044 return 0;
1045}
1046
1047/*
1048 * Set's HiFi DAC format.
1049 */
1050static int wm8753_hdac_set_dai_fmt(struct snd_soc_component *component,
1051 unsigned int fmt)
1052{
1053 u16 hifi = snd_soc_component_read(component, WM8753_HIFI) & 0x01e0;
1054
1055 /* interface format */
1056 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1057 case SND_SOC_DAIFMT_I2S:
1058 hifi |= 0x0002;
1059 break;
1060 case SND_SOC_DAIFMT_RIGHT_J:
1061 break;
1062 case SND_SOC_DAIFMT_LEFT_J:
1063 hifi |= 0x0001;
1064 break;
1065 case SND_SOC_DAIFMT_DSP_A:
1066 hifi |= 0x0003;
1067 break;
1068 case SND_SOC_DAIFMT_DSP_B:
1069 hifi |= 0x0013;
1070 break;
1071 default:
1072 return -EINVAL;
1073 }
1074
1075 snd_soc_component_write(component, WM8753_HIFI, val: hifi);
1076 return 0;
1077}
1078
1079/*
1080 * Set's I2S DAI format.
1081 */
1082static int wm8753_i2s_set_dai_fmt(struct snd_soc_component *component,
1083 unsigned int fmt)
1084{
1085 u16 ioctl, hifi;
1086
1087 hifi = snd_soc_component_read(component, WM8753_HIFI) & 0x013f;
1088 ioctl = snd_soc_component_read(component, WM8753_IOCTL) & 0x00ae;
1089
1090 /* set master/slave audio interface */
1091 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
1092 case SND_SOC_DAIFMT_CBC_CFC:
1093 break;
1094 case SND_SOC_DAIFMT_CBP_CFP:
1095 ioctl |= 0x1;
1096 fallthrough;
1097 case SND_SOC_DAIFMT_CBP_CFC:
1098 hifi |= 0x0040;
1099 break;
1100 default:
1101 return -EINVAL;
1102 }
1103
1104 /* clock inversion */
1105 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
1106 case SND_SOC_DAIFMT_DSP_A:
1107 case SND_SOC_DAIFMT_DSP_B:
1108 /* frame inversion not valid for DSP modes */
1109 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1110 case SND_SOC_DAIFMT_NB_NF:
1111 break;
1112 case SND_SOC_DAIFMT_IB_NF:
1113 hifi |= 0x0080;
1114 break;
1115 default:
1116 return -EINVAL;
1117 }
1118 break;
1119 case SND_SOC_DAIFMT_I2S:
1120 case SND_SOC_DAIFMT_RIGHT_J:
1121 case SND_SOC_DAIFMT_LEFT_J:
1122 hifi &= ~0x0010;
1123 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
1124 case SND_SOC_DAIFMT_NB_NF:
1125 break;
1126 case SND_SOC_DAIFMT_IB_IF:
1127 hifi |= 0x0090;
1128 break;
1129 case SND_SOC_DAIFMT_IB_NF:
1130 hifi |= 0x0080;
1131 break;
1132 case SND_SOC_DAIFMT_NB_IF:
1133 hifi |= 0x0010;
1134 break;
1135 default:
1136 return -EINVAL;
1137 }
1138 break;
1139 default:
1140 return -EINVAL;
1141 }
1142
1143 snd_soc_component_write(component, WM8753_HIFI, val: hifi);
1144 snd_soc_component_write(component, WM8753_IOCTL, val: ioctl);
1145 return 0;
1146}
1147
1148/*
1149 * Set PCM DAI bit size and sample rate.
1150 */
1151static int wm8753_i2s_hw_params(struct snd_pcm_substream *substream,
1152 struct snd_pcm_hw_params *params,
1153 struct snd_soc_dai *dai)
1154{
1155 struct snd_soc_component *component = dai->component;
1156 struct wm8753_priv *wm8753 = snd_soc_component_get_drvdata(c: component);
1157 u16 srate = snd_soc_component_read(component, WM8753_SRATE1) & 0x01c0;
1158 u16 hifi = snd_soc_component_read(component, WM8753_HIFI) & 0x01f3;
1159 int coeff;
1160
1161 /* is digital filter coefficient valid ? */
1162 coeff = get_coeff(mclk: wm8753->sysclk, rate: params_rate(p: params));
1163 if (coeff < 0) {
1164 printk(KERN_ERR "wm8753 invalid MCLK or rate\n");
1165 return coeff;
1166 }
1167 snd_soc_component_write(component, WM8753_SRATE1, val: srate | (coeff_div[coeff].sr << 1) |
1168 coeff_div[coeff].usb);
1169
1170 /* bit size */
1171 switch (params_width(p: params)) {
1172 case 16:
1173 break;
1174 case 20:
1175 hifi |= 0x0004;
1176 break;
1177 case 24:
1178 hifi |= 0x0008;
1179 break;
1180 case 32:
1181 hifi |= 0x000c;
1182 break;
1183 }
1184
1185 snd_soc_component_write(component, WM8753_HIFI, val: hifi);
1186 return 0;
1187}
1188
1189static int wm8753_mode1v_set_dai_fmt(struct snd_soc_component *component,
1190 unsigned int fmt)
1191{
1192 u16 clock;
1193
1194 /* set clk source as pcmclk */
1195 clock = snd_soc_component_read(component, WM8753_CLOCK) & 0xfffb;
1196 snd_soc_component_write(component, WM8753_CLOCK, val: clock);
1197
1198 return wm8753_vdac_adc_set_dai_fmt(component, fmt);
1199}
1200
1201static int wm8753_mode1h_set_dai_fmt(struct snd_soc_component *component,
1202 unsigned int fmt)
1203{
1204 return wm8753_hdac_set_dai_fmt(component, fmt);
1205}
1206
1207static int wm8753_mode2_set_dai_fmt(struct snd_soc_component *component,
1208 unsigned int fmt)
1209{
1210 u16 clock;
1211
1212 /* set clk source as pcmclk */
1213 clock = snd_soc_component_read(component, WM8753_CLOCK) & 0xfffb;
1214 snd_soc_component_write(component, WM8753_CLOCK, val: clock);
1215
1216 return wm8753_vdac_adc_set_dai_fmt(component, fmt);
1217}
1218
1219static int wm8753_mode3_4_set_dai_fmt(struct snd_soc_component *component,
1220 unsigned int fmt)
1221{
1222 u16 clock;
1223
1224 /* set clk source as mclk */
1225 clock = snd_soc_component_read(component, WM8753_CLOCK) & 0xfffb;
1226 snd_soc_component_write(component, WM8753_CLOCK, val: clock | 0x4);
1227
1228 if (wm8753_hdac_set_dai_fmt(component, fmt) < 0)
1229 return -EINVAL;
1230 return wm8753_vdac_adc_set_dai_fmt(component, fmt);
1231}
1232
1233static int wm8753_hifi_write_dai_fmt(struct snd_soc_component *component,
1234 unsigned int fmt)
1235{
1236 struct wm8753_priv *wm8753 = snd_soc_component_get_drvdata(c: component);
1237 int ret = 0;
1238
1239 switch (wm8753->dai_func) {
1240 case 0:
1241 ret = wm8753_mode1h_set_dai_fmt(component, fmt);
1242 break;
1243 case 1:
1244 ret = wm8753_mode2_set_dai_fmt(component, fmt);
1245 break;
1246 case 2:
1247 case 3:
1248 ret = wm8753_mode3_4_set_dai_fmt(component, fmt);
1249 break;
1250 default:
1251 break;
1252 }
1253 if (ret)
1254 return ret;
1255
1256 return wm8753_i2s_set_dai_fmt(component, fmt);
1257}
1258
1259static int wm8753_hifi_set_dai_fmt(struct snd_soc_dai *codec_dai,
1260 unsigned int fmt)
1261{
1262 struct snd_soc_component *component = codec_dai->component;
1263 struct wm8753_priv *wm8753 = snd_soc_component_get_drvdata(c: component);
1264
1265 wm8753->hifi_fmt = fmt;
1266
1267 return wm8753_hifi_write_dai_fmt(component, fmt);
1268};
1269
1270static int wm8753_voice_write_dai_fmt(struct snd_soc_component *component,
1271 unsigned int fmt)
1272{
1273 struct wm8753_priv *wm8753 = snd_soc_component_get_drvdata(c: component);
1274 int ret = 0;
1275
1276 if (wm8753->dai_func != 0)
1277 return 0;
1278
1279 ret = wm8753_mode1v_set_dai_fmt(component, fmt);
1280 if (ret)
1281 return ret;
1282 ret = wm8753_pcm_set_dai_fmt(component, fmt);
1283 if (ret)
1284 return ret;
1285
1286 return 0;
1287};
1288
1289static int wm8753_voice_set_dai_fmt(struct snd_soc_dai *codec_dai,
1290 unsigned int fmt)
1291{
1292 struct snd_soc_component *component = codec_dai->component;
1293 struct wm8753_priv *wm8753 = snd_soc_component_get_drvdata(c: component);
1294
1295 wm8753->voice_fmt = fmt;
1296
1297 return wm8753_voice_write_dai_fmt(component, fmt);
1298};
1299
1300static int wm8753_mute(struct snd_soc_dai *dai, int mute, int direction)
1301{
1302 struct snd_soc_component *component = dai->component;
1303 u16 mute_reg = snd_soc_component_read(component, WM8753_DAC) & 0xfff7;
1304 struct wm8753_priv *wm8753 = snd_soc_component_get_drvdata(c: component);
1305
1306 /* the digital mute covers the HiFi and Voice DAC's on the WM8753.
1307 * make sure we check if they are not both active when we mute */
1308 if (mute && wm8753->dai_func == 1) {
1309 if (!snd_soc_component_active(component))
1310 snd_soc_component_write(component, WM8753_DAC, val: mute_reg | 0x8);
1311 } else {
1312 if (mute)
1313 snd_soc_component_write(component, WM8753_DAC, val: mute_reg | 0x8);
1314 else
1315 snd_soc_component_write(component, WM8753_DAC, val: mute_reg);
1316 }
1317
1318 return 0;
1319}
1320
1321static void wm8753_charge_work(struct work_struct *work)
1322{
1323 struct wm8753_priv *wm8753 =
1324 container_of(work, struct wm8753_priv, charge_work.work);
1325
1326 /* Set to 500k */
1327 regmap_update_bits(map: wm8753->regmap, WM8753_PWR1, mask: 0x0180, val: 0x0100);
1328}
1329
1330static int wm8753_set_bias_level(struct snd_soc_component *component,
1331 enum snd_soc_bias_level level)
1332{
1333 struct wm8753_priv *wm8753 = snd_soc_component_get_drvdata(c: component);
1334 u16 pwr_reg = snd_soc_component_read(component, WM8753_PWR1) & 0xfe3e;
1335
1336 switch (level) {
1337 case SND_SOC_BIAS_ON:
1338 /* set vmid to 50k and unmute dac */
1339 snd_soc_component_write(component, WM8753_PWR1, val: pwr_reg | 0x00c0);
1340 break;
1341 case SND_SOC_BIAS_PREPARE:
1342 /* Wait until fully charged */
1343 flush_delayed_work(dwork: &wm8753->charge_work);
1344 break;
1345 case SND_SOC_BIAS_STANDBY:
1346 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
1347 /* set vmid to 5k for quick power up */
1348 snd_soc_component_write(component, WM8753_PWR1, val: pwr_reg | 0x01c1);
1349 schedule_delayed_work(dwork: &wm8753->charge_work,
1350 delay: msecs_to_jiffies(m: caps_charge));
1351 } else {
1352 /* mute dac and set vmid to 500k, enable VREF */
1353 snd_soc_component_write(component, WM8753_PWR1, val: pwr_reg | 0x0141);
1354 }
1355 break;
1356 case SND_SOC_BIAS_OFF:
1357 cancel_delayed_work_sync(dwork: &wm8753->charge_work);
1358 snd_soc_component_write(component, WM8753_PWR1, val: 0x0001);
1359 break;
1360 }
1361 return 0;
1362}
1363
1364#define WM8753_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
1365 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 |\
1366 SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000 |\
1367 SNDRV_PCM_RATE_88200 | SNDRV_PCM_RATE_96000)
1368
1369#define WM8753_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
1370 SNDRV_PCM_FMTBIT_S24_LE)
1371
1372/*
1373 * The WM8753 supports up to 4 different and mutually exclusive DAI
1374 * configurations. This gives 2 PCM's available for use, hifi and voice.
1375 * NOTE: The Voice PCM cannot play or capture audio to the CPU as it's DAI
1376 * is connected between the wm8753 and a BT codec or GSM modem.
1377 *
1378 * 1. Voice over PCM DAI - HIFI DAC over HIFI DAI
1379 * 2. Voice over HIFI DAI - HIFI disabled
1380 * 3. Voice disabled - HIFI over HIFI
1381 * 4. Voice disabled - HIFI over HIFI, uses voice DAI LRC for capture
1382 */
1383static const struct snd_soc_dai_ops wm8753_dai_ops_hifi_mode = {
1384 .hw_params = wm8753_i2s_hw_params,
1385 .mute_stream = wm8753_mute,
1386 .set_fmt = wm8753_hifi_set_dai_fmt,
1387 .set_clkdiv = wm8753_set_dai_clkdiv,
1388 .set_pll = wm8753_set_dai_pll,
1389 .set_sysclk = wm8753_set_dai_sysclk,
1390 .no_capture_mute = 1,
1391};
1392
1393static const struct snd_soc_dai_ops wm8753_dai_ops_voice_mode = {
1394 .hw_params = wm8753_pcm_hw_params,
1395 .mute_stream = wm8753_mute,
1396 .set_fmt = wm8753_voice_set_dai_fmt,
1397 .set_clkdiv = wm8753_set_dai_clkdiv,
1398 .set_pll = wm8753_set_dai_pll,
1399 .set_sysclk = wm8753_set_dai_sysclk,
1400 .no_capture_mute = 1,
1401};
1402
1403static struct snd_soc_dai_driver wm8753_dai[] = {
1404/* DAI HiFi mode 1 */
1405{ .name = "wm8753-hifi",
1406 .playback = {
1407 .stream_name = "HiFi Playback",
1408 .channels_min = 1,
1409 .channels_max = 2,
1410 .rates = WM8753_RATES,
1411 .formats = WM8753_FORMATS
1412 },
1413 .capture = { /* dummy for fast DAI switching */
1414 .stream_name = "Capture",
1415 .channels_min = 1,
1416 .channels_max = 2,
1417 .rates = WM8753_RATES,
1418 .formats = WM8753_FORMATS
1419 },
1420 .ops = &wm8753_dai_ops_hifi_mode,
1421},
1422/* DAI Voice mode 1 */
1423{ .name = "wm8753-voice",
1424 .playback = {
1425 .stream_name = "Voice Playback",
1426 .channels_min = 1,
1427 .channels_max = 1,
1428 .rates = WM8753_RATES,
1429 .formats = WM8753_FORMATS,
1430 },
1431 .capture = {
1432 .stream_name = "Capture",
1433 .channels_min = 1,
1434 .channels_max = 2,
1435 .rates = WM8753_RATES,
1436 .formats = WM8753_FORMATS,
1437 },
1438 .ops = &wm8753_dai_ops_voice_mode,
1439},
1440};
1441
1442static int wm8753_resume(struct snd_soc_component *component)
1443{
1444 struct wm8753_priv *wm8753 = snd_soc_component_get_drvdata(c: component);
1445
1446 regcache_sync(map: wm8753->regmap);
1447
1448 return 0;
1449}
1450
1451static int wm8753_probe(struct snd_soc_component *component)
1452{
1453 struct wm8753_priv *wm8753 = snd_soc_component_get_drvdata(c: component);
1454 int ret;
1455
1456 INIT_DELAYED_WORK(&wm8753->charge_work, wm8753_charge_work);
1457
1458 ret = wm8753_reset(component);
1459 if (ret < 0) {
1460 dev_err(component->dev, "Failed to issue reset: %d\n", ret);
1461 return ret;
1462 }
1463
1464 wm8753->dai_func = 0;
1465
1466 /* set the update bits */
1467 snd_soc_component_update_bits(component, WM8753_LDAC, mask: 0x0100, val: 0x0100);
1468 snd_soc_component_update_bits(component, WM8753_RDAC, mask: 0x0100, val: 0x0100);
1469 snd_soc_component_update_bits(component, WM8753_LADC, mask: 0x0100, val: 0x0100);
1470 snd_soc_component_update_bits(component, WM8753_RADC, mask: 0x0100, val: 0x0100);
1471 snd_soc_component_update_bits(component, WM8753_LOUT1V, mask: 0x0100, val: 0x0100);
1472 snd_soc_component_update_bits(component, WM8753_ROUT1V, mask: 0x0100, val: 0x0100);
1473 snd_soc_component_update_bits(component, WM8753_LOUT2V, mask: 0x0100, val: 0x0100);
1474 snd_soc_component_update_bits(component, WM8753_ROUT2V, mask: 0x0100, val: 0x0100);
1475 snd_soc_component_update_bits(component, WM8753_LINVOL, mask: 0x0100, val: 0x0100);
1476 snd_soc_component_update_bits(component, WM8753_RINVOL, mask: 0x0100, val: 0x0100);
1477
1478 return 0;
1479}
1480
1481static const struct snd_soc_component_driver soc_component_dev_wm8753 = {
1482 .probe = wm8753_probe,
1483 .resume = wm8753_resume,
1484 .set_bias_level = wm8753_set_bias_level,
1485 .controls = wm8753_snd_controls,
1486 .num_controls = ARRAY_SIZE(wm8753_snd_controls),
1487 .dapm_widgets = wm8753_dapm_widgets,
1488 .num_dapm_widgets = ARRAY_SIZE(wm8753_dapm_widgets),
1489 .dapm_routes = wm8753_dapm_routes,
1490 .num_dapm_routes = ARRAY_SIZE(wm8753_dapm_routes),
1491 .suspend_bias_off = 1,
1492 .idle_bias_on = 1,
1493 .use_pmdown_time = 1,
1494 .endianness = 1,
1495};
1496
1497static const struct of_device_id wm8753_of_match[] = {
1498 { .compatible = "wlf,wm8753", },
1499 { }
1500};
1501MODULE_DEVICE_TABLE(of, wm8753_of_match);
1502
1503static const struct regmap_config wm8753_regmap = {
1504 .reg_bits = 7,
1505 .val_bits = 9,
1506
1507 .max_register = WM8753_ADCTL2,
1508 .volatile_reg = wm8753_volatile,
1509
1510 .cache_type = REGCACHE_MAPLE,
1511 .reg_defaults = wm8753_reg_defaults,
1512 .num_reg_defaults = ARRAY_SIZE(wm8753_reg_defaults),
1513};
1514
1515#if defined(CONFIG_SPI_MASTER)
1516static int wm8753_spi_probe(struct spi_device *spi)
1517{
1518 struct wm8753_priv *wm8753;
1519 int ret;
1520
1521 wm8753 = devm_kzalloc(dev: &spi->dev, size: sizeof(struct wm8753_priv),
1522 GFP_KERNEL);
1523 if (wm8753 == NULL)
1524 return -ENOMEM;
1525
1526 spi_set_drvdata(spi, data: wm8753);
1527
1528 wm8753->regmap = devm_regmap_init_spi(spi, &wm8753_regmap);
1529 if (IS_ERR(ptr: wm8753->regmap)) {
1530 ret = PTR_ERR(ptr: wm8753->regmap);
1531 dev_err(&spi->dev, "Failed to allocate register map: %d\n",
1532 ret);
1533 return ret;
1534 }
1535
1536 ret = devm_snd_soc_register_component(dev: &spi->dev, component_driver: &soc_component_dev_wm8753,
1537 dai_drv: wm8753_dai, ARRAY_SIZE(wm8753_dai));
1538 if (ret != 0)
1539 dev_err(&spi->dev, "Failed to register CODEC: %d\n", ret);
1540
1541 return ret;
1542}
1543
1544static struct spi_driver wm8753_spi_driver = {
1545 .driver = {
1546 .name = "wm8753",
1547 .of_match_table = wm8753_of_match,
1548 },
1549 .probe = wm8753_spi_probe,
1550};
1551#endif /* CONFIG_SPI_MASTER */
1552
1553#if IS_ENABLED(CONFIG_I2C)
1554static int wm8753_i2c_probe(struct i2c_client *i2c)
1555{
1556 struct wm8753_priv *wm8753;
1557 int ret;
1558
1559 wm8753 = devm_kzalloc(dev: &i2c->dev, size: sizeof(struct wm8753_priv),
1560 GFP_KERNEL);
1561 if (wm8753 == NULL)
1562 return -ENOMEM;
1563
1564 i2c_set_clientdata(client: i2c, data: wm8753);
1565
1566 wm8753->regmap = devm_regmap_init_i2c(i2c, &wm8753_regmap);
1567 if (IS_ERR(ptr: wm8753->regmap)) {
1568 ret = PTR_ERR(ptr: wm8753->regmap);
1569 dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
1570 ret);
1571 return ret;
1572 }
1573
1574 ret = devm_snd_soc_register_component(dev: &i2c->dev, component_driver: &soc_component_dev_wm8753,
1575 dai_drv: wm8753_dai, ARRAY_SIZE(wm8753_dai));
1576 if (ret != 0)
1577 dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
1578
1579 return ret;
1580}
1581
1582static const struct i2c_device_id wm8753_i2c_id[] = {
1583 { "wm8753" },
1584 { }
1585};
1586MODULE_DEVICE_TABLE(i2c, wm8753_i2c_id);
1587
1588static struct i2c_driver wm8753_i2c_driver = {
1589 .driver = {
1590 .name = "wm8753",
1591 .of_match_table = wm8753_of_match,
1592 },
1593 .probe = wm8753_i2c_probe,
1594 .id_table = wm8753_i2c_id,
1595};
1596#endif
1597
1598static int __init wm8753_modinit(void)
1599{
1600 int ret = 0;
1601#if IS_ENABLED(CONFIG_I2C)
1602 ret = i2c_add_driver(&wm8753_i2c_driver);
1603 if (ret != 0) {
1604 printk(KERN_ERR "Failed to register wm8753 I2C driver: %d\n",
1605 ret);
1606 }
1607#endif
1608#if defined(CONFIG_SPI_MASTER)
1609 ret = spi_register_driver(&wm8753_spi_driver);
1610 if (ret != 0) {
1611 printk(KERN_ERR "Failed to register wm8753 SPI driver: %d\n",
1612 ret);
1613 }
1614#endif
1615 return ret;
1616}
1617module_init(wm8753_modinit);
1618
1619static void __exit wm8753_exit(void)
1620{
1621#if IS_ENABLED(CONFIG_I2C)
1622 i2c_del_driver(driver: &wm8753_i2c_driver);
1623#endif
1624#if defined(CONFIG_SPI_MASTER)
1625 spi_unregister_driver(sdrv: &wm8753_spi_driver);
1626#endif
1627}
1628module_exit(wm8753_exit);
1629
1630MODULE_DESCRIPTION("ASoC WM8753 driver");
1631MODULE_AUTHOR("Liam Girdwood");
1632MODULE_LICENSE("GPL");
1633

source code of linux/sound/soc/codecs/wm8753.c