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10#include <linux/module.h>
11#include <linux/moduleparam.h>
12#include <linux/init.h>
13#include <linux/delay.h>
14#include <linux/pm.h>
15#include <linux/i2c.h>
16#include <linux/regmap.h>
17#include <linux/spi/spi.h>
18#include <linux/slab.h>
19#include <sound/core.h>
20#include <sound/pcm.h>
21#include <sound/pcm_params.h>
22#include <sound/soc.h>
23#include <sound/initval.h>
24#include <sound/tlv.h>
25
26#include "wm8983.h"
27
28static const struct reg_default wm8983_defaults[] = {
29 { 0x01, 0x0000 },
30 { 0x02, 0x0000 },
31 { 0x03, 0x0000 },
32 { 0x04, 0x0050 },
33 { 0x05, 0x0000 },
34 { 0x06, 0x0140 },
35 { 0x07, 0x0000 },
36 { 0x08, 0x0000 },
37 { 0x09, 0x0000 },
38 { 0x0A, 0x0000 },
39 { 0x0B, 0x00FF },
40 { 0x0C, 0x00FF },
41 { 0x0D, 0x0000 },
42 { 0x0E, 0x0100 },
43 { 0x0F, 0x00FF },
44 { 0x10, 0x00FF },
45 { 0x12, 0x012C },
46 { 0x13, 0x002C },
47 { 0x14, 0x002C },
48 { 0x15, 0x002C },
49 { 0x16, 0x002C },
50 { 0x18, 0x0032 },
51 { 0x19, 0x0000 },
52 { 0x1B, 0x0000 },
53 { 0x1C, 0x0000 },
54 { 0x1D, 0x0000 },
55 { 0x1E, 0x0000 },
56 { 0x20, 0x0038 },
57 { 0x21, 0x000B },
58 { 0x22, 0x0032 },
59 { 0x23, 0x0000 },
60 { 0x24, 0x0008 },
61 { 0x25, 0x000C },
62 { 0x26, 0x0093 },
63 { 0x27, 0x00E9 },
64 { 0x29, 0x0000 },
65 { 0x2A, 0x0000 },
66 { 0x2B, 0x0000 },
67 { 0x2C, 0x0033 },
68 { 0x2D, 0x0010 },
69 { 0x2E, 0x0010 },
70 { 0x2F, 0x0100 },
71 { 0x30, 0x0100 },
72 { 0x31, 0x0002 },
73 { 0x32, 0x0001 },
74 { 0x33, 0x0001 },
75 { 0x34, 0x0039 },
76 { 0x35, 0x0039 },
77 { 0x36, 0x0039 },
78 { 0x37, 0x0039 },
79 { 0x38, 0x0001 },
80 { 0x39, 0x0001 },
81 { 0x3D, 0x0000 },
82};
83
84
85static const int vol_update_regs[] = {
86 WM8983_LEFT_DAC_DIGITAL_VOL,
87 WM8983_RIGHT_DAC_DIGITAL_VOL,
88 WM8983_LEFT_ADC_DIGITAL_VOL,
89 WM8983_RIGHT_ADC_DIGITAL_VOL,
90 WM8983_LOUT1_HP_VOLUME_CTRL,
91 WM8983_ROUT1_HP_VOLUME_CTRL,
92 WM8983_LOUT2_SPK_VOLUME_CTRL,
93 WM8983_ROUT2_SPK_VOLUME_CTRL,
94 WM8983_LEFT_INP_PGA_GAIN_CTRL,
95 WM8983_RIGHT_INP_PGA_GAIN_CTRL
96};
97
98struct wm8983_priv {
99 struct regmap *regmap;
100 u32 sysclk;
101 u32 bclk;
102};
103
104static const struct {
105 int div;
106 int ratio;
107} fs_ratios[] = {
108 { 10, 128 },
109 { 15, 192 },
110 { 20, 256 },
111 { 30, 384 },
112 { 40, 512 },
113 { 60, 768 },
114 { 80, 1024 },
115 { 120, 1536 }
116};
117
118static const int srates[] = { 48000, 32000, 24000, 16000, 12000, 8000 };
119
120static const int bclk_divs[] = {
121 1, 2, 4, 8, 16, 32
122};
123
124static int eqmode_get(struct snd_kcontrol *kcontrol,
125 struct snd_ctl_elem_value *ucontrol);
126static int eqmode_put(struct snd_kcontrol *kcontrol,
127 struct snd_ctl_elem_value *ucontrol);
128
129static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 50, 1);
130static const DECLARE_TLV_DB_SCALE(adc_tlv, -12700, 50, 1);
131static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
132static const DECLARE_TLV_DB_SCALE(lim_thresh_tlv, -600, 100, 0);
133static const DECLARE_TLV_DB_SCALE(lim_boost_tlv, 0, 100, 0);
134static const DECLARE_TLV_DB_SCALE(alc_min_tlv, -1200, 600, 0);
135static const DECLARE_TLV_DB_SCALE(alc_max_tlv, -675, 600, 0);
136static const DECLARE_TLV_DB_SCALE(alc_tar_tlv, -2250, 150, 0);
137static const DECLARE_TLV_DB_SCALE(pga_vol_tlv, -1200, 75, 0);
138static const DECLARE_TLV_DB_SCALE(boost_tlv, -1200, 300, 1);
139static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
140static const DECLARE_TLV_DB_SCALE(aux_tlv, -1500, 300, 0);
141static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0);
142static const DECLARE_TLV_DB_SCALE(pga_boost_tlv, 0, 2000, 0);
143
144static const char *alc_sel_text[] = { "Off", "Right", "Left", "Stereo" };
145static SOC_ENUM_SINGLE_DECL(alc_sel, WM8983_ALC_CONTROL_1, 7, alc_sel_text);
146
147static const char *alc_mode_text[] = { "ALC", "Limiter" };
148static SOC_ENUM_SINGLE_DECL(alc_mode, WM8983_ALC_CONTROL_3, 8, alc_mode_text);
149
150static const char *filter_mode_text[] = { "Audio", "Application" };
151static SOC_ENUM_SINGLE_DECL(filter_mode, WM8983_ADC_CONTROL, 7,
152 filter_mode_text);
153
154static const char *eq_bw_text[] = { "Narrow", "Wide" };
155static const char *eqmode_text[] = { "Capture", "Playback" };
156static SOC_ENUM_SINGLE_EXT_DECL(eqmode, eqmode_text);
157
158static const char *eq1_cutoff_text[] = {
159 "80Hz", "105Hz", "135Hz", "175Hz"
160};
161static SOC_ENUM_SINGLE_DECL(eq1_cutoff, WM8983_EQ1_LOW_SHELF, 5,
162 eq1_cutoff_text);
163static const char *eq2_cutoff_text[] = {
164 "230Hz", "300Hz", "385Hz", "500Hz"
165};
166static SOC_ENUM_SINGLE_DECL(eq2_bw, WM8983_EQ2_PEAK_1, 8, eq_bw_text);
167static SOC_ENUM_SINGLE_DECL(eq2_cutoff, WM8983_EQ2_PEAK_1, 5, eq2_cutoff_text);
168static const char *eq3_cutoff_text[] = {
169 "650Hz", "850Hz", "1.1kHz", "1.4kHz"
170};
171static SOC_ENUM_SINGLE_DECL(eq3_bw, WM8983_EQ3_PEAK_2, 8, eq_bw_text);
172static SOC_ENUM_SINGLE_DECL(eq3_cutoff, WM8983_EQ3_PEAK_2, 5, eq3_cutoff_text);
173static const char *eq4_cutoff_text[] = {
174 "1.8kHz", "2.4kHz", "3.2kHz", "4.1kHz"
175};
176static SOC_ENUM_SINGLE_DECL(eq4_bw, WM8983_EQ4_PEAK_3, 8, eq_bw_text);
177static SOC_ENUM_SINGLE_DECL(eq4_cutoff, WM8983_EQ4_PEAK_3, 5, eq4_cutoff_text);
178static const char *eq5_cutoff_text[] = {
179 "5.3kHz", "6.9kHz", "9kHz", "11.7kHz"
180};
181static SOC_ENUM_SINGLE_DECL(eq5_cutoff, WM8983_EQ5_HIGH_SHELF, 5,
182 eq5_cutoff_text);
183
184static const char *depth_3d_text[] = {
185 "Off",
186 "6.67%",
187 "13.3%",
188 "20%",
189 "26.7%",
190 "33.3%",
191 "40%",
192 "46.6%",
193 "53.3%",
194 "60%",
195 "66.7%",
196 "73.3%",
197 "80%",
198 "86.7%",
199 "93.3%",
200 "100%"
201};
202static SOC_ENUM_SINGLE_DECL(depth_3d, WM8983_3D_CONTROL, 0,
203 depth_3d_text);
204
205static const struct snd_kcontrol_new wm8983_snd_controls[] = {
206 SOC_SINGLE("Digital Loopback Switch", WM8983_COMPANDING_CONTROL,
207 0, 1, 0),
208
209 SOC_ENUM("ALC Capture Function", alc_sel),
210 SOC_SINGLE_TLV("ALC Capture Max Volume", WM8983_ALC_CONTROL_1,
211 3, 7, 0, alc_max_tlv),
212 SOC_SINGLE_TLV("ALC Capture Min Volume", WM8983_ALC_CONTROL_1,
213 0, 7, 0, alc_min_tlv),
214 SOC_SINGLE_TLV("ALC Capture Target Volume", WM8983_ALC_CONTROL_2,
215 0, 15, 0, alc_tar_tlv),
216 SOC_SINGLE("ALC Capture Attack", WM8983_ALC_CONTROL_3, 0, 10, 0),
217 SOC_SINGLE("ALC Capture Hold", WM8983_ALC_CONTROL_2, 4, 10, 0),
218 SOC_SINGLE("ALC Capture Decay", WM8983_ALC_CONTROL_3, 4, 10, 0),
219 SOC_ENUM("ALC Mode", alc_mode),
220 SOC_SINGLE("ALC Capture NG Switch", WM8983_NOISE_GATE,
221 3, 1, 0),
222 SOC_SINGLE("ALC Capture NG Threshold", WM8983_NOISE_GATE,
223 0, 7, 1),
224
225 SOC_DOUBLE_R_TLV("Capture Volume", WM8983_LEFT_ADC_DIGITAL_VOL,
226 WM8983_RIGHT_ADC_DIGITAL_VOL, 0, 255, 0, adc_tlv),
227 SOC_DOUBLE_R("Capture PGA ZC Switch", WM8983_LEFT_INP_PGA_GAIN_CTRL,
228 WM8983_RIGHT_INP_PGA_GAIN_CTRL, 7, 1, 0),
229 SOC_DOUBLE_R_TLV("Capture PGA Volume", WM8983_LEFT_INP_PGA_GAIN_CTRL,
230 WM8983_RIGHT_INP_PGA_GAIN_CTRL, 0, 63, 0, pga_vol_tlv),
231
232 SOC_DOUBLE_R_TLV("Capture PGA Boost Volume",
233 WM8983_LEFT_ADC_BOOST_CTRL, WM8983_RIGHT_ADC_BOOST_CTRL,
234 8, 1, 0, pga_boost_tlv),
235
236 SOC_DOUBLE("ADC Inversion Switch", WM8983_ADC_CONTROL, 0, 1, 1, 0),
237 SOC_SINGLE("ADC 128x Oversampling Switch", WM8983_ADC_CONTROL, 8, 1, 0),
238
239 SOC_DOUBLE_R_TLV("Playback Volume", WM8983_LEFT_DAC_DIGITAL_VOL,
240 WM8983_RIGHT_DAC_DIGITAL_VOL, 0, 255, 0, dac_tlv),
241
242 SOC_SINGLE("DAC Playback Limiter Switch", WM8983_DAC_LIMITER_1, 8, 1, 0),
243 SOC_SINGLE("DAC Playback Limiter Decay", WM8983_DAC_LIMITER_1, 4, 10, 0),
244 SOC_SINGLE("DAC Playback Limiter Attack", WM8983_DAC_LIMITER_1, 0, 11, 0),
245 SOC_SINGLE_TLV("DAC Playback Limiter Threshold", WM8983_DAC_LIMITER_2,
246 4, 7, 1, lim_thresh_tlv),
247 SOC_SINGLE_TLV("DAC Playback Limiter Boost Volume", WM8983_DAC_LIMITER_2,
248 0, 12, 0, lim_boost_tlv),
249 SOC_DOUBLE("DAC Inversion Switch", WM8983_DAC_CONTROL, 0, 1, 1, 0),
250 SOC_SINGLE("DAC Auto Mute Switch", WM8983_DAC_CONTROL, 2, 1, 0),
251 SOC_SINGLE("DAC 128x Oversampling Switch", WM8983_DAC_CONTROL, 3, 1, 0),
252
253 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8983_LOUT1_HP_VOLUME_CTRL,
254 WM8983_ROUT1_HP_VOLUME_CTRL, 0, 63, 0, out_tlv),
255 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8983_LOUT1_HP_VOLUME_CTRL,
256 WM8983_ROUT1_HP_VOLUME_CTRL, 7, 1, 0),
257 SOC_DOUBLE_R("Headphone Switch", WM8983_LOUT1_HP_VOLUME_CTRL,
258 WM8983_ROUT1_HP_VOLUME_CTRL, 6, 1, 1),
259
260 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8983_LOUT2_SPK_VOLUME_CTRL,
261 WM8983_ROUT2_SPK_VOLUME_CTRL, 0, 63, 0, out_tlv),
262 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8983_LOUT2_SPK_VOLUME_CTRL,
263 WM8983_ROUT2_SPK_VOLUME_CTRL, 7, 1, 0),
264 SOC_DOUBLE_R("Speaker Switch", WM8983_LOUT2_SPK_VOLUME_CTRL,
265 WM8983_ROUT2_SPK_VOLUME_CTRL, 6, 1, 1),
266
267 SOC_SINGLE("OUT3 Switch", WM8983_OUT3_MIXER_CTRL,
268 6, 1, 1),
269
270 SOC_SINGLE("OUT4 Switch", WM8983_OUT4_MONO_MIX_CTRL,
271 6, 1, 1),
272
273 SOC_SINGLE("High Pass Filter Switch", WM8983_ADC_CONTROL, 8, 1, 0),
274 SOC_ENUM("High Pass Filter Mode", filter_mode),
275 SOC_SINGLE("High Pass Filter Cutoff", WM8983_ADC_CONTROL, 4, 7, 0),
276
277 SOC_DOUBLE_R_TLV("Aux Bypass Volume",
278 WM8983_LEFT_MIXER_CTRL, WM8983_RIGHT_MIXER_CTRL, 6, 7, 0,
279 aux_tlv),
280
281 SOC_DOUBLE_R_TLV("Input PGA Bypass Volume",
282 WM8983_LEFT_MIXER_CTRL, WM8983_RIGHT_MIXER_CTRL, 2, 7, 0,
283 bypass_tlv),
284
285 SOC_ENUM_EXT("Equalizer Function", eqmode, eqmode_get, eqmode_put),
286 SOC_ENUM("EQ1 Cutoff", eq1_cutoff),
287 SOC_SINGLE_TLV("EQ1 Volume", WM8983_EQ1_LOW_SHELF, 0, 24, 1, eq_tlv),
288 SOC_ENUM("EQ2 Bandwidth", eq2_bw),
289 SOC_ENUM("EQ2 Cutoff", eq2_cutoff),
290 SOC_SINGLE_TLV("EQ2 Volume", WM8983_EQ2_PEAK_1, 0, 24, 1, eq_tlv),
291 SOC_ENUM("EQ3 Bandwidth", eq3_bw),
292 SOC_ENUM("EQ3 Cutoff", eq3_cutoff),
293 SOC_SINGLE_TLV("EQ3 Volume", WM8983_EQ3_PEAK_2, 0, 24, 1, eq_tlv),
294 SOC_ENUM("EQ4 Bandwidth", eq4_bw),
295 SOC_ENUM("EQ4 Cutoff", eq4_cutoff),
296 SOC_SINGLE_TLV("EQ4 Volume", WM8983_EQ4_PEAK_3, 0, 24, 1, eq_tlv),
297 SOC_ENUM("EQ5 Cutoff", eq5_cutoff),
298 SOC_SINGLE_TLV("EQ5 Volume", WM8983_EQ5_HIGH_SHELF, 0, 24, 1, eq_tlv),
299
300 SOC_ENUM("3D Depth", depth_3d),
301};
302
303static const struct snd_kcontrol_new left_out_mixer[] = {
304 SOC_DAPM_SINGLE("Line Switch", WM8983_LEFT_MIXER_CTRL, 1, 1, 0),
305 SOC_DAPM_SINGLE("Aux Switch", WM8983_LEFT_MIXER_CTRL, 5, 1, 0),
306 SOC_DAPM_SINGLE("PCM Switch", WM8983_LEFT_MIXER_CTRL, 0, 1, 0),
307};
308
309static const struct snd_kcontrol_new right_out_mixer[] = {
310 SOC_DAPM_SINGLE("Line Switch", WM8983_RIGHT_MIXER_CTRL, 1, 1, 0),
311 SOC_DAPM_SINGLE("Aux Switch", WM8983_RIGHT_MIXER_CTRL, 5, 1, 0),
312 SOC_DAPM_SINGLE("PCM Switch", WM8983_RIGHT_MIXER_CTRL, 0, 1, 0),
313};
314
315static const struct snd_kcontrol_new left_input_mixer[] = {
316 SOC_DAPM_SINGLE("L2 Switch", WM8983_INPUT_CTRL, 2, 1, 0),
317 SOC_DAPM_SINGLE("MicN Switch", WM8983_INPUT_CTRL, 1, 1, 0),
318 SOC_DAPM_SINGLE("MicP Switch", WM8983_INPUT_CTRL, 0, 1, 0),
319};
320
321static const struct snd_kcontrol_new right_input_mixer[] = {
322 SOC_DAPM_SINGLE("R2 Switch", WM8983_INPUT_CTRL, 6, 1, 0),
323 SOC_DAPM_SINGLE("MicN Switch", WM8983_INPUT_CTRL, 5, 1, 0),
324 SOC_DAPM_SINGLE("MicP Switch", WM8983_INPUT_CTRL, 4, 1, 0),
325};
326
327static const struct snd_kcontrol_new left_boost_mixer[] = {
328 SOC_DAPM_SINGLE_TLV("L2 Volume", WM8983_LEFT_ADC_BOOST_CTRL,
329 4, 7, 0, boost_tlv),
330 SOC_DAPM_SINGLE_TLV("AUXL Volume", WM8983_LEFT_ADC_BOOST_CTRL,
331 0, 7, 0, boost_tlv)
332};
333
334static const struct snd_kcontrol_new out3_mixer[] = {
335 SOC_DAPM_SINGLE("LMIX2OUT3 Switch", WM8983_OUT3_MIXER_CTRL,
336 1, 1, 0),
337 SOC_DAPM_SINGLE("LDAC2OUT3 Switch", WM8983_OUT3_MIXER_CTRL,
338 0, 1, 0),
339};
340
341static const struct snd_kcontrol_new out4_mixer[] = {
342 SOC_DAPM_SINGLE("LMIX2OUT4 Switch", WM8983_OUT4_MONO_MIX_CTRL,
343 4, 1, 0),
344 SOC_DAPM_SINGLE("RMIX2OUT4 Switch", WM8983_OUT4_MONO_MIX_CTRL,
345 1, 1, 0),
346 SOC_DAPM_SINGLE("LDAC2OUT4 Switch", WM8983_OUT4_MONO_MIX_CTRL,
347 3, 1, 0),
348 SOC_DAPM_SINGLE("RDAC2OUT4 Switch", WM8983_OUT4_MONO_MIX_CTRL,
349 0, 1, 0),
350};
351
352static const struct snd_kcontrol_new right_boost_mixer[] = {
353 SOC_DAPM_SINGLE_TLV("R2 Volume", WM8983_RIGHT_ADC_BOOST_CTRL,
354 4, 7, 0, boost_tlv),
355 SOC_DAPM_SINGLE_TLV("AUXR Volume", WM8983_RIGHT_ADC_BOOST_CTRL,
356 0, 7, 0, boost_tlv)
357};
358
359static const struct snd_soc_dapm_widget wm8983_dapm_widgets[] = {
360 SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8983_POWER_MANAGEMENT_3,
361 0, 0),
362 SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8983_POWER_MANAGEMENT_3,
363 1, 0),
364 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8983_POWER_MANAGEMENT_2,
365 0, 0),
366 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8983_POWER_MANAGEMENT_2,
367 1, 0),
368
369 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8983_POWER_MANAGEMENT_3,
370 2, 0, left_out_mixer, ARRAY_SIZE(left_out_mixer)),
371 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8983_POWER_MANAGEMENT_3,
372 3, 0, right_out_mixer, ARRAY_SIZE(right_out_mixer)),
373
374 SND_SOC_DAPM_MIXER("Left Input Mixer", WM8983_POWER_MANAGEMENT_2,
375 2, 0, left_input_mixer, ARRAY_SIZE(left_input_mixer)),
376 SND_SOC_DAPM_MIXER("Right Input Mixer", WM8983_POWER_MANAGEMENT_2,
377 3, 0, right_input_mixer, ARRAY_SIZE(right_input_mixer)),
378
379 SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8983_POWER_MANAGEMENT_2,
380 4, 0, left_boost_mixer, ARRAY_SIZE(left_boost_mixer)),
381 SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8983_POWER_MANAGEMENT_2,
382 5, 0, right_boost_mixer, ARRAY_SIZE(right_boost_mixer)),
383
384 SND_SOC_DAPM_MIXER("OUT3 Mixer", WM8983_POWER_MANAGEMENT_1,
385 6, 0, out3_mixer, ARRAY_SIZE(out3_mixer)),
386
387 SND_SOC_DAPM_MIXER("OUT4 Mixer", WM8983_POWER_MANAGEMENT_1,
388 7, 0, out4_mixer, ARRAY_SIZE(out4_mixer)),
389
390 SND_SOC_DAPM_PGA("Left Capture PGA", WM8983_LEFT_INP_PGA_GAIN_CTRL,
391 6, 1, NULL, 0),
392 SND_SOC_DAPM_PGA("Right Capture PGA", WM8983_RIGHT_INP_PGA_GAIN_CTRL,
393 6, 1, NULL, 0),
394
395 SND_SOC_DAPM_PGA("Left Headphone Out", WM8983_POWER_MANAGEMENT_2,
396 7, 0, NULL, 0),
397 SND_SOC_DAPM_PGA("Right Headphone Out", WM8983_POWER_MANAGEMENT_2,
398 8, 0, NULL, 0),
399
400 SND_SOC_DAPM_PGA("Left Speaker Out", WM8983_POWER_MANAGEMENT_3,
401 5, 0, NULL, 0),
402 SND_SOC_DAPM_PGA("Right Speaker Out", WM8983_POWER_MANAGEMENT_3,
403 6, 0, NULL, 0),
404
405 SND_SOC_DAPM_PGA("OUT3 Out", WM8983_POWER_MANAGEMENT_3,
406 7, 0, NULL, 0),
407
408 SND_SOC_DAPM_PGA("OUT4 Out", WM8983_POWER_MANAGEMENT_3,
409 8, 0, NULL, 0),
410
411 SND_SOC_DAPM_SUPPLY("Mic Bias", WM8983_POWER_MANAGEMENT_1, 4, 0,
412 NULL, 0),
413
414 SND_SOC_DAPM_INPUT("LIN"),
415 SND_SOC_DAPM_INPUT("LIP"),
416 SND_SOC_DAPM_INPUT("RIN"),
417 SND_SOC_DAPM_INPUT("RIP"),
418 SND_SOC_DAPM_INPUT("AUXL"),
419 SND_SOC_DAPM_INPUT("AUXR"),
420 SND_SOC_DAPM_INPUT("L2"),
421 SND_SOC_DAPM_INPUT("R2"),
422 SND_SOC_DAPM_OUTPUT("HPL"),
423 SND_SOC_DAPM_OUTPUT("HPR"),
424 SND_SOC_DAPM_OUTPUT("SPKL"),
425 SND_SOC_DAPM_OUTPUT("SPKR"),
426 SND_SOC_DAPM_OUTPUT("OUT3"),
427 SND_SOC_DAPM_OUTPUT("OUT4")
428};
429
430static const struct snd_soc_dapm_route wm8983_audio_map[] = {
431 { "OUT3 Mixer", "LMIX2OUT3 Switch", "Left Output Mixer" },
432 { "OUT3 Mixer", "LDAC2OUT3 Switch", "Left DAC" },
433
434 { "OUT3 Out", NULL, "OUT3 Mixer" },
435 { "OUT3", NULL, "OUT3 Out" },
436
437 { "OUT4 Mixer", "LMIX2OUT4 Switch", "Left Output Mixer" },
438 { "OUT4 Mixer", "RMIX2OUT4 Switch", "Right Output Mixer" },
439 { "OUT4 Mixer", "LDAC2OUT4 Switch", "Left DAC" },
440 { "OUT4 Mixer", "RDAC2OUT4 Switch", "Right DAC" },
441
442 { "OUT4 Out", NULL, "OUT4 Mixer" },
443 { "OUT4", NULL, "OUT4 Out" },
444
445 { "Right Output Mixer", "PCM Switch", "Right DAC" },
446 { "Right Output Mixer", "Aux Switch", "AUXR" },
447 { "Right Output Mixer", "Line Switch", "Right Boost Mixer" },
448
449 { "Left Output Mixer", "PCM Switch", "Left DAC" },
450 { "Left Output Mixer", "Aux Switch", "AUXL" },
451 { "Left Output Mixer", "Line Switch", "Left Boost Mixer" },
452
453 { "Right Headphone Out", NULL, "Right Output Mixer" },
454 { "HPR", NULL, "Right Headphone Out" },
455
456 { "Left Headphone Out", NULL, "Left Output Mixer" },
457 { "HPL", NULL, "Left Headphone Out" },
458
459 { "Right Speaker Out", NULL, "Right Output Mixer" },
460 { "SPKR", NULL, "Right Speaker Out" },
461
462 { "Left Speaker Out", NULL, "Left Output Mixer" },
463 { "SPKL", NULL, "Left Speaker Out" },
464
465 { "Right ADC", NULL, "Right Boost Mixer" },
466
467 { "Right Boost Mixer", "AUXR Volume", "AUXR" },
468 { "Right Boost Mixer", NULL, "Right Capture PGA" },
469 { "Right Boost Mixer", "R2 Volume", "R2" },
470
471 { "Left ADC", NULL, "Left Boost Mixer" },
472
473 { "Left Boost Mixer", "AUXL Volume", "AUXL" },
474 { "Left Boost Mixer", NULL, "Left Capture PGA" },
475 { "Left Boost Mixer", "L2 Volume", "L2" },
476
477 { "Right Capture PGA", NULL, "Right Input Mixer" },
478 { "Left Capture PGA", NULL, "Left Input Mixer" },
479
480 { "Right Input Mixer", "R2 Switch", "R2" },
481 { "Right Input Mixer", "MicN Switch", "RIN" },
482 { "Right Input Mixer", "MicP Switch", "RIP" },
483
484 { "Left Input Mixer", "L2 Switch", "L2" },
485 { "Left Input Mixer", "MicN Switch", "LIN" },
486 { "Left Input Mixer", "MicP Switch", "LIP" },
487};
488
489static int eqmode_get(struct snd_kcontrol *kcontrol,
490 struct snd_ctl_elem_value *ucontrol)
491{
492 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
493 unsigned int reg;
494
495 reg = snd_soc_component_read(component, WM8983_EQ1_LOW_SHELF);
496 if (reg & WM8983_EQ3DMODE)
497 ucontrol->value.enumerated.item[0] = 1;
498 else
499 ucontrol->value.enumerated.item[0] = 0;
500
501 return 0;
502}
503
504static int eqmode_put(struct snd_kcontrol *kcontrol,
505 struct snd_ctl_elem_value *ucontrol)
506{
507 struct snd_soc_component *component = snd_soc_kcontrol_component(kcontrol);
508 unsigned int regpwr2, regpwr3;
509 unsigned int reg_eq;
510
511 if (ucontrol->value.enumerated.item[0] != 0
512 && ucontrol->value.enumerated.item[0] != 1)
513 return -EINVAL;
514
515 reg_eq = snd_soc_component_read(component, WM8983_EQ1_LOW_SHELF);
516 switch ((reg_eq & WM8983_EQ3DMODE) >> WM8983_EQ3DMODE_SHIFT) {
517 case 0:
518 if (!ucontrol->value.enumerated.item[0])
519 return 0;
520 break;
521 case 1:
522 if (ucontrol->value.enumerated.item[0])
523 return 0;
524 break;
525 }
526
527 regpwr2 = snd_soc_component_read(component, WM8983_POWER_MANAGEMENT_2);
528 regpwr3 = snd_soc_component_read(component, WM8983_POWER_MANAGEMENT_3);
529
530 snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_2,
531 WM8983_ADCENR_MASK | WM8983_ADCENL_MASK, 0);
532 snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_3,
533 WM8983_DACENR_MASK | WM8983_DACENL_MASK, 0);
534
535 snd_soc_component_update_bits(component, WM8983_EQ1_LOW_SHELF,
536 WM8983_EQ3DMODE_MASK,
537 ucontrol->value.enumerated.item[0]
538 << WM8983_EQ3DMODE_SHIFT);
539
540 snd_soc_component_write(component, WM8983_POWER_MANAGEMENT_2, regpwr2);
541 snd_soc_component_write(component, WM8983_POWER_MANAGEMENT_3, regpwr3);
542 return 0;
543}
544
545static bool wm8983_writeable(struct device *dev, unsigned int reg)
546{
547 switch (reg) {
548 case WM8983_SOFTWARE_RESET ... WM8983_RIGHT_ADC_DIGITAL_VOL:
549 case WM8983_EQ1_LOW_SHELF ... WM8983_DAC_LIMITER_2:
550 case WM8983_NOTCH_FILTER_1 ... WM8983_NOTCH_FILTER_4:
551 case WM8983_ALC_CONTROL_1 ... WM8983_PLL_K_3:
552 case WM8983_3D_CONTROL ... WM8983_OUT4_MONO_MIX_CTRL:
553 case WM8983_BIAS_CTRL:
554 return true;
555 default:
556 return false;
557 }
558}
559
560static int wm8983_dac_mute(struct snd_soc_dai *dai, int mute, int direction)
561{
562 struct snd_soc_component *component = dai->component;
563
564 return snd_soc_component_update_bits(component, WM8983_DAC_CONTROL,
565 WM8983_SOFTMUTE_MASK,
566 !!mute << WM8983_SOFTMUTE_SHIFT);
567}
568
569static int wm8983_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
570{
571 struct snd_soc_component *component = dai->component;
572 u16 format, master, bcp, lrp;
573
574 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
575 case SND_SOC_DAIFMT_I2S:
576 format = 0x2;
577 break;
578 case SND_SOC_DAIFMT_RIGHT_J:
579 format = 0x0;
580 break;
581 case SND_SOC_DAIFMT_LEFT_J:
582 format = 0x1;
583 break;
584 case SND_SOC_DAIFMT_DSP_A:
585 case SND_SOC_DAIFMT_DSP_B:
586 format = 0x3;
587 break;
588 default:
589 dev_err(dai->dev, "Unknown dai format\n");
590 return -EINVAL;
591 }
592
593 snd_soc_component_update_bits(component, WM8983_AUDIO_INTERFACE,
594 WM8983_FMT_MASK, format << WM8983_FMT_SHIFT);
595
596 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
597 case SND_SOC_DAIFMT_CBM_CFM:
598 master = 1;
599 break;
600 case SND_SOC_DAIFMT_CBS_CFS:
601 master = 0;
602 break;
603 default:
604 dev_err(dai->dev, "Unknown master/slave configuration\n");
605 return -EINVAL;
606 }
607
608 snd_soc_component_update_bits(component, WM8983_CLOCK_GEN_CONTROL,
609 WM8983_MS_MASK, master << WM8983_MS_SHIFT);
610
611
612 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
613 case SND_SOC_DAIFMT_DSP_A:
614 case SND_SOC_DAIFMT_DSP_B:
615 dev_err(dai->dev, "DSP A/B modes are not supported\n");
616 return -EINVAL;
617 default:
618 break;
619 }
620
621 bcp = lrp = 0;
622 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
623 case SND_SOC_DAIFMT_NB_NF:
624 break;
625 case SND_SOC_DAIFMT_IB_IF:
626 bcp = lrp = 1;
627 break;
628 case SND_SOC_DAIFMT_IB_NF:
629 bcp = 1;
630 break;
631 case SND_SOC_DAIFMT_NB_IF:
632 lrp = 1;
633 break;
634 default:
635 dev_err(dai->dev, "Unknown polarity configuration\n");
636 return -EINVAL;
637 }
638
639 snd_soc_component_update_bits(component, WM8983_AUDIO_INTERFACE,
640 WM8983_LRCP_MASK, lrp << WM8983_LRCP_SHIFT);
641 snd_soc_component_update_bits(component, WM8983_AUDIO_INTERFACE,
642 WM8983_BCP_MASK, bcp << WM8983_BCP_SHIFT);
643 return 0;
644}
645
646static int wm8983_hw_params(struct snd_pcm_substream *substream,
647 struct snd_pcm_hw_params *params,
648 struct snd_soc_dai *dai)
649{
650 int i;
651 struct snd_soc_component *component = dai->component;
652 struct wm8983_priv *wm8983 = snd_soc_component_get_drvdata(component);
653 u16 blen, srate_idx;
654 u32 tmp;
655 int srate_best;
656 int ret;
657
658 ret = snd_soc_params_to_bclk(params);
659 if (ret < 0) {
660 dev_err(component->dev, "Failed to convert params to bclk: %d\n", ret);
661 return ret;
662 }
663
664 wm8983->bclk = ret;
665
666 switch (params_width(params)) {
667 case 16:
668 blen = 0x0;
669 break;
670 case 20:
671 blen = 0x1;
672 break;
673 case 24:
674 blen = 0x2;
675 break;
676 case 32:
677 blen = 0x3;
678 break;
679 default:
680 dev_err(dai->dev, "Unsupported word length %u\n",
681 params_width(params));
682 return -EINVAL;
683 }
684
685 snd_soc_component_update_bits(component, WM8983_AUDIO_INTERFACE,
686 WM8983_WL_MASK, blen << WM8983_WL_SHIFT);
687
688
689
690
691
692 srate_idx = 0;
693 srate_best = abs(srates[0] - params_rate(params));
694 for (i = 1; i < ARRAY_SIZE(srates); ++i) {
695 if (abs(srates[i] - params_rate(params)) >= srate_best)
696 continue;
697 srate_idx = i;
698 srate_best = abs(srates[i] - params_rate(params));
699 }
700
701 dev_dbg(dai->dev, "Selected SRATE = %d\n", srates[srate_idx]);
702 snd_soc_component_update_bits(component, WM8983_ADDITIONAL_CONTROL,
703 WM8983_SR_MASK, srate_idx << WM8983_SR_SHIFT);
704
705 dev_dbg(dai->dev, "Target BCLK = %uHz\n", wm8983->bclk);
706 dev_dbg(dai->dev, "SYSCLK = %uHz\n", wm8983->sysclk);
707
708 for (i = 0; i < ARRAY_SIZE(fs_ratios); ++i) {
709 if (wm8983->sysclk / params_rate(params)
710 == fs_ratios[i].ratio)
711 break;
712 }
713
714 if (i == ARRAY_SIZE(fs_ratios)) {
715 dev_err(dai->dev, "Unable to configure MCLK ratio %u/%u\n",
716 wm8983->sysclk, params_rate(params));
717 return -EINVAL;
718 }
719
720 dev_dbg(dai->dev, "MCLK ratio = %dfs\n", fs_ratios[i].ratio);
721 snd_soc_component_update_bits(component, WM8983_CLOCK_GEN_CONTROL,
722 WM8983_MCLKDIV_MASK, i << WM8983_MCLKDIV_SHIFT);
723
724
725 tmp = (wm8983->sysclk / fs_ratios[i].div) * 10;
726 for (i = 0; i < ARRAY_SIZE(bclk_divs); ++i) {
727 if (wm8983->bclk == tmp / bclk_divs[i])
728 break;
729 }
730
731 if (i == ARRAY_SIZE(bclk_divs)) {
732 dev_err(dai->dev, "No matching BCLK divider found\n");
733 return -EINVAL;
734 }
735
736 dev_dbg(dai->dev, "BCLK div = %d\n", i);
737 snd_soc_component_update_bits(component, WM8983_CLOCK_GEN_CONTROL,
738 WM8983_BCLKDIV_MASK, i << WM8983_BCLKDIV_SHIFT);
739
740 return 0;
741}
742
743struct pll_div {
744 u32 div2:1;
745 u32 n:4;
746 u32 k:24;
747};
748
749#define FIXED_PLL_SIZE ((1ULL << 24) * 10)
750static int pll_factors(struct pll_div *pll_div, unsigned int target,
751 unsigned int source)
752{
753 u64 Kpart;
754 unsigned long int K, Ndiv, Nmod;
755
756 pll_div->div2 = 0;
757 Ndiv = target / source;
758 if (Ndiv < 6) {
759 source >>= 1;
760 pll_div->div2 = 1;
761 Ndiv = target / source;
762 }
763
764 if (Ndiv < 6 || Ndiv > 12) {
765 printk(KERN_ERR "%s: WM8983 N value is not within"
766 " the recommended range: %lu\n", __func__, Ndiv);
767 return -EINVAL;
768 }
769 pll_div->n = Ndiv;
770
771 Nmod = target % source;
772 Kpart = FIXED_PLL_SIZE * (u64)Nmod;
773
774 do_div(Kpart, source);
775
776 K = Kpart & 0xffffffff;
777 if ((K % 10) >= 5)
778 K += 5;
779 K /= 10;
780 pll_div->k = K;
781 return 0;
782}
783
784static int wm8983_set_pll(struct snd_soc_dai *dai, int pll_id,
785 int source, unsigned int freq_in,
786 unsigned int freq_out)
787{
788 int ret;
789 struct snd_soc_component *component;
790 struct pll_div pll_div;
791
792 component = dai->component;
793 if (!freq_in || !freq_out) {
794
795 snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_1,
796 WM8983_PLLEN_MASK, 0);
797 return 0;
798 } else {
799 ret = pll_factors(&pll_div, freq_out * 4 * 2, freq_in);
800 if (ret)
801 return ret;
802
803
804 snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_1,
805 WM8983_PLLEN_MASK, 0);
806
807
808 snd_soc_component_write(component, WM8983_PLL_N,
809 (pll_div.div2 << WM8983_PLL_PRESCALE_SHIFT)
810 | pll_div.n);
811
812 snd_soc_component_write(component, WM8983_PLL_K_3, pll_div.k & 0x1ff);
813 snd_soc_component_write(component, WM8983_PLL_K_2, (pll_div.k >> 9) & 0x1ff);
814 snd_soc_component_write(component, WM8983_PLL_K_1, (pll_div.k >> 18));
815
816 snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_1,
817 WM8983_PLLEN_MASK, WM8983_PLLEN);
818 }
819
820 return 0;
821}
822
823static int wm8983_set_sysclk(struct snd_soc_dai *dai,
824 int clk_id, unsigned int freq, int dir)
825{
826 struct snd_soc_component *component = dai->component;
827 struct wm8983_priv *wm8983 = snd_soc_component_get_drvdata(component);
828
829 switch (clk_id) {
830 case WM8983_CLKSRC_MCLK:
831 snd_soc_component_update_bits(component, WM8983_CLOCK_GEN_CONTROL,
832 WM8983_CLKSEL_MASK, 0);
833 break;
834 case WM8983_CLKSRC_PLL:
835 snd_soc_component_update_bits(component, WM8983_CLOCK_GEN_CONTROL,
836 WM8983_CLKSEL_MASK, WM8983_CLKSEL);
837 break;
838 default:
839 dev_err(dai->dev, "Unknown clock source: %d\n", clk_id);
840 return -EINVAL;
841 }
842
843 wm8983->sysclk = freq;
844 return 0;
845}
846
847static int wm8983_set_bias_level(struct snd_soc_component *component,
848 enum snd_soc_bias_level level)
849{
850 struct wm8983_priv *wm8983 = snd_soc_component_get_drvdata(component);
851 int ret;
852
853 switch (level) {
854 case SND_SOC_BIAS_ON:
855 case SND_SOC_BIAS_PREPARE:
856
857 snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_1,
858 WM8983_VMIDSEL_MASK,
859 1 << WM8983_VMIDSEL_SHIFT);
860 break;
861 case SND_SOC_BIAS_STANDBY:
862 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
863 ret = regcache_sync(wm8983->regmap);
864 if (ret < 0) {
865 dev_err(component->dev, "Failed to sync cache: %d\n", ret);
866 return ret;
867 }
868
869 snd_soc_component_update_bits(component, WM8983_OUT4_TO_ADC,
870 WM8983_POBCTRL_MASK | WM8983_DELEN_MASK,
871 WM8983_POBCTRL | WM8983_DELEN);
872
873 snd_soc_component_update_bits(component, WM8983_OUTPUT_CTRL,
874 WM8983_TSDEN_MASK, WM8983_TSDEN);
875
876 snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_1,
877 WM8983_BIASEN_MASK, WM8983_BIASEN);
878
879 snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_1,
880 WM8983_VMIDSEL_MASK,
881 1 << WM8983_VMIDSEL_SHIFT);
882 msleep(250);
883
884 snd_soc_component_update_bits(component, WM8983_OUT4_TO_ADC,
885 WM8983_POBCTRL_MASK |
886 WM8983_DELEN_MASK, 0);
887 }
888
889
890 snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_1,
891 WM8983_VMIDSEL_MASK,
892 2 << WM8983_VMIDSEL_SHIFT);
893 break;
894 case SND_SOC_BIAS_OFF:
895
896 snd_soc_component_update_bits(component, WM8983_OUTPUT_CTRL,
897 WM8983_TSDEN_MASK, 0);
898
899 snd_soc_component_update_bits(component, WM8983_POWER_MANAGEMENT_1,
900 WM8983_VMIDSEL_MASK | WM8983_BIASEN_MASK,
901 0);
902
903 msleep(100);
904 snd_soc_component_write(component, WM8983_POWER_MANAGEMENT_1, 0);
905 snd_soc_component_write(component, WM8983_POWER_MANAGEMENT_2, 0);
906 snd_soc_component_write(component, WM8983_POWER_MANAGEMENT_3, 0);
907 break;
908 }
909
910 return 0;
911}
912
913static int wm8983_probe(struct snd_soc_component *component)
914{
915 int ret;
916 int i;
917
918 ret = snd_soc_component_write(component, WM8983_SOFTWARE_RESET, 0);
919 if (ret < 0) {
920 dev_err(component->dev, "Failed to issue reset: %d\n", ret);
921 return ret;
922 }
923
924
925 for (i = 0; i < ARRAY_SIZE(vol_update_regs); ++i)
926 snd_soc_component_update_bits(component, vol_update_regs[i],
927 0x100, 0x100);
928
929
930 for (i = WM8983_LOUT1_HP_VOLUME_CTRL;
931 i <= WM8983_OUT4_MONO_MIX_CTRL; ++i)
932 snd_soc_component_update_bits(component, i, 0x40, 0x40);
933
934
935 snd_soc_component_update_bits(component, WM8983_DAC_CONTROL,
936 WM8983_SOFTMUTE_MASK,
937 WM8983_SOFTMUTE);
938
939
940 snd_soc_component_update_bits(component, WM8983_BIAS_CTRL,
941 WM8983_BIASCUT, WM8983_BIASCUT);
942 return 0;
943}
944
945static const struct snd_soc_dai_ops wm8983_dai_ops = {
946 .mute_stream = wm8983_dac_mute,
947 .hw_params = wm8983_hw_params,
948 .set_fmt = wm8983_set_fmt,
949 .set_sysclk = wm8983_set_sysclk,
950 .set_pll = wm8983_set_pll,
951 .no_capture_mute = 1,
952};
953
954#define WM8983_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
955 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
956
957static struct snd_soc_dai_driver wm8983_dai = {
958 .name = "wm8983-hifi",
959 .playback = {
960 .stream_name = "Playback",
961 .channels_min = 2,
962 .channels_max = 2,
963 .rates = SNDRV_PCM_RATE_8000_48000,
964 .formats = WM8983_FORMATS,
965 },
966 .capture = {
967 .stream_name = "Capture",
968 .channels_min = 2,
969 .channels_max = 2,
970 .rates = SNDRV_PCM_RATE_8000_48000,
971 .formats = WM8983_FORMATS,
972 },
973 .ops = &wm8983_dai_ops,
974 .symmetric_rate = 1
975};
976
977static const struct snd_soc_component_driver soc_component_dev_wm8983 = {
978 .probe = wm8983_probe,
979 .set_bias_level = wm8983_set_bias_level,
980 .controls = wm8983_snd_controls,
981 .num_controls = ARRAY_SIZE(wm8983_snd_controls),
982 .dapm_widgets = wm8983_dapm_widgets,
983 .num_dapm_widgets = ARRAY_SIZE(wm8983_dapm_widgets),
984 .dapm_routes = wm8983_audio_map,
985 .num_dapm_routes = ARRAY_SIZE(wm8983_audio_map),
986 .suspend_bias_off = 1,
987 .idle_bias_on = 1,
988 .use_pmdown_time = 1,
989 .endianness = 1,
990 .non_legacy_dai_naming = 1,
991};
992
993static const struct regmap_config wm8983_regmap = {
994 .reg_bits = 7,
995 .val_bits = 9,
996
997 .reg_defaults = wm8983_defaults,
998 .num_reg_defaults = ARRAY_SIZE(wm8983_defaults),
999 .cache_type = REGCACHE_RBTREE,
1000 .max_register = WM8983_MAX_REGISTER,
1001
1002 .writeable_reg = wm8983_writeable,
1003};
1004
1005#if defined(CONFIG_SPI_MASTER)
1006static int wm8983_spi_probe(struct spi_device *spi)
1007{
1008 struct wm8983_priv *wm8983;
1009 int ret;
1010
1011 wm8983 = devm_kzalloc(&spi->dev, sizeof *wm8983, GFP_KERNEL);
1012 if (!wm8983)
1013 return -ENOMEM;
1014
1015 wm8983->regmap = devm_regmap_init_spi(spi, &wm8983_regmap);
1016 if (IS_ERR(wm8983->regmap)) {
1017 ret = PTR_ERR(wm8983->regmap);
1018 dev_err(&spi->dev, "Failed to init regmap: %d\n", ret);
1019 return ret;
1020 }
1021
1022 spi_set_drvdata(spi, wm8983);
1023
1024 ret = devm_snd_soc_register_component(&spi->dev,
1025 &soc_component_dev_wm8983, &wm8983_dai, 1);
1026 return ret;
1027}
1028
1029static struct spi_driver wm8983_spi_driver = {
1030 .driver = {
1031 .name = "wm8983",
1032 },
1033 .probe = wm8983_spi_probe,
1034};
1035#endif
1036
1037#if IS_ENABLED(CONFIG_I2C)
1038static int wm8983_i2c_probe(struct i2c_client *i2c,
1039 const struct i2c_device_id *id)
1040{
1041 struct wm8983_priv *wm8983;
1042 int ret;
1043
1044 wm8983 = devm_kzalloc(&i2c->dev, sizeof *wm8983, GFP_KERNEL);
1045 if (!wm8983)
1046 return -ENOMEM;
1047
1048 wm8983->regmap = devm_regmap_init_i2c(i2c, &wm8983_regmap);
1049 if (IS_ERR(wm8983->regmap)) {
1050 ret = PTR_ERR(wm8983->regmap);
1051 dev_err(&i2c->dev, "Failed to init regmap: %d\n", ret);
1052 return ret;
1053 }
1054
1055 i2c_set_clientdata(i2c, wm8983);
1056
1057 ret = devm_snd_soc_register_component(&i2c->dev,
1058 &soc_component_dev_wm8983, &wm8983_dai, 1);
1059
1060 return ret;
1061}
1062
1063static const struct i2c_device_id wm8983_i2c_id[] = {
1064 { "wm8983", 0 },
1065 { }
1066};
1067MODULE_DEVICE_TABLE(i2c, wm8983_i2c_id);
1068
1069static struct i2c_driver wm8983_i2c_driver = {
1070 .driver = {
1071 .name = "wm8983",
1072 },
1073 .probe = wm8983_i2c_probe,
1074 .id_table = wm8983_i2c_id
1075};
1076#endif
1077
1078static int __init wm8983_modinit(void)
1079{
1080 int ret = 0;
1081
1082#if IS_ENABLED(CONFIG_I2C)
1083 ret = i2c_add_driver(&wm8983_i2c_driver);
1084 if (ret) {
1085 printk(KERN_ERR "Failed to register wm8983 I2C driver: %d\n",
1086 ret);
1087 }
1088#endif
1089#if defined(CONFIG_SPI_MASTER)
1090 ret = spi_register_driver(&wm8983_spi_driver);
1091 if (ret != 0) {
1092 printk(KERN_ERR "Failed to register wm8983 SPI driver: %d\n",
1093 ret);
1094 }
1095#endif
1096 return ret;
1097}
1098module_init(wm8983_modinit);
1099
1100static void __exit wm8983_exit(void)
1101{
1102#if IS_ENABLED(CONFIG_I2C)
1103 i2c_del_driver(&wm8983_i2c_driver);
1104#endif
1105#if defined(CONFIG_SPI_MASTER)
1106 spi_unregister_driver(&wm8983_spi_driver);
1107#endif
1108}
1109module_exit(wm8983_exit);
1110
1111MODULE_DESCRIPTION("ASoC WM8983 driver");
1112MODULE_AUTHOR("Dimitris Papastamos <dp@opensource.wolfsonmicro.com>");
1113MODULE_LICENSE("GPL");
1114
