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Merge branch 'fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/evalenti/linux...
[linux/fpc-iii.git] / sound / soc / codecs / wm8985.c
blob6ac76fe116b028db34c8cdbf3691babeb2a68844
1 /*
2 * wm8985.c -- WM8985 ALSA SoC Audio driver
3 *
4 * Copyright 2010 Wolfson Microelectronics plc
5 *
6 * Author: Dimitris Papastamos <dp@opensource.wolfsonmicro.com>
7 *
8 * This program is free software; you can redistribute it and/or modify
9 * it under the terms of the GNU General Public License version 2 as
10 * published by the Free Software Foundation.
11 *
12 * TODO:
13 * o Add OUT3/OUT4 mixer controls.
14 */
15
16 #include <linux/module.h>
17 #include <linux/moduleparam.h>
18 #include <linux/init.h>
19 #include <linux/delay.h>
20 #include <linux/pm.h>
21 #include <linux/i2c.h>
22 #include <linux/regmap.h>
23 #include <linux/regulator/consumer.h>
24 #include <linux/spi/spi.h>
25 #include <linux/slab.h>
26 #include <sound/core.h>
27 #include <sound/pcm.h>
28 #include <sound/pcm_params.h>
29 #include <sound/soc.h>
30 #include <sound/initval.h>
31 #include <sound/tlv.h>
32
33 #include "wm8985.h"
34
35 #define WM8985_NUM_SUPPLIES 4
36 static const char *wm8985_supply_names[WM8985_NUM_SUPPLIES] = {
37 "DCVDD",
38 "DBVDD",
39 "AVDD1",
40 "AVDD2"
41 };
42
43 static const struct reg_default wm8985_reg_defaults[] = {
44 { 1, 0x0000 }, /* R1 - Power management 1 */
45 { 2, 0x0000 }, /* R2 - Power management 2 */
46 { 3, 0x0000 }, /* R3 - Power management 3 */
47 { 4, 0x0050 }, /* R4 - Audio Interface */
48 { 5, 0x0000 }, /* R5 - Companding control */
49 { 6, 0x0140 }, /* R6 - Clock Gen control */
50 { 7, 0x0000 }, /* R7 - Additional control */
51 { 8, 0x0000 }, /* R8 - GPIO Control */
52 { 9, 0x0000 }, /* R9 - Jack Detect Control 1 */
53 { 10, 0x0000 }, /* R10 - DAC Control */
54 { 11, 0x00FF }, /* R11 - Left DAC digital Vol */
55 { 12, 0x00FF }, /* R12 - Right DAC digital vol */
56 { 13, 0x0000 }, /* R13 - Jack Detect Control 2 */
57 { 14, 0x0100 }, /* R14 - ADC Control */
58 { 15, 0x00FF }, /* R15 - Left ADC Digital Vol */
59 { 16, 0x00FF }, /* R16 - Right ADC Digital Vol */
60 { 18, 0x012C }, /* R18 - EQ1 - low shelf */
61 { 19, 0x002C }, /* R19 - EQ2 - peak 1 */
62 { 20, 0x002C }, /* R20 - EQ3 - peak 2 */
63 { 21, 0x002C }, /* R21 - EQ4 - peak 3 */
64 { 22, 0x002C }, /* R22 - EQ5 - high shelf */
65 { 24, 0x0032 }, /* R24 - DAC Limiter 1 */
66 { 25, 0x0000 }, /* R25 - DAC Limiter 2 */
67 { 27, 0x0000 }, /* R27 - Notch Filter 1 */
68 { 28, 0x0000 }, /* R28 - Notch Filter 2 */
69 { 29, 0x0000 }, /* R29 - Notch Filter 3 */
70 { 30, 0x0000 }, /* R30 - Notch Filter 4 */
71 { 32, 0x0038 }, /* R32 - ALC control 1 */
72 { 33, 0x000B }, /* R33 - ALC control 2 */
73 { 34, 0x0032 }, /* R34 - ALC control 3 */
74 { 35, 0x0000 }, /* R35 - Noise Gate */
75 { 36, 0x0008 }, /* R36 - PLL N */
76 { 37, 0x000C }, /* R37 - PLL K 1 */
77 { 38, 0x0093 }, /* R38 - PLL K 2 */
78 { 39, 0x00E9 }, /* R39 - PLL K 3 */
79 { 41, 0x0000 }, /* R41 - 3D control */
80 { 42, 0x0000 }, /* R42 - OUT4 to ADC */
81 { 43, 0x0000 }, /* R43 - Beep control */
82 { 44, 0x0033 }, /* R44 - Input ctrl */
83 { 45, 0x0010 }, /* R45 - Left INP PGA gain ctrl */
84 { 46, 0x0010 }, /* R46 - Right INP PGA gain ctrl */
85 { 47, 0x0100 }, /* R47 - Left ADC BOOST ctrl */
86 { 48, 0x0100 }, /* R48 - Right ADC BOOST ctrl */
87 { 49, 0x0002 }, /* R49 - Output ctrl */
88 { 50, 0x0001 }, /* R50 - Left mixer ctrl */
89 { 51, 0x0001 }, /* R51 - Right mixer ctrl */
90 { 52, 0x0039 }, /* R52 - LOUT1 (HP) volume ctrl */
91 { 53, 0x0039 }, /* R53 - ROUT1 (HP) volume ctrl */
92 { 54, 0x0039 }, /* R54 - LOUT2 (SPK) volume ctrl */
93 { 55, 0x0039 }, /* R55 - ROUT2 (SPK) volume ctrl */
94 { 56, 0x0001 }, /* R56 - OUT3 mixer ctrl */
95 { 57, 0x0001 }, /* R57 - OUT4 (MONO) mix ctrl */
96 { 60, 0x0004 }, /* R60 - OUTPUT ctrl */
97 { 61, 0x0000 }, /* R61 - BIAS CTRL */
98 };
99
100 static bool wm8985_writeable(struct device *dev, unsigned int reg)
101 {
102 switch (reg) {
103 case WM8985_SOFTWARE_RESET:
104 case WM8985_POWER_MANAGEMENT_1:
105 case WM8985_POWER_MANAGEMENT_2:
106 case WM8985_POWER_MANAGEMENT_3:
107 case WM8985_AUDIO_INTERFACE:
108 case WM8985_COMPANDING_CONTROL:
109 case WM8985_CLOCK_GEN_CONTROL:
110 case WM8985_ADDITIONAL_CONTROL:
111 case WM8985_GPIO_CONTROL:
112 case WM8985_JACK_DETECT_CONTROL_1:
113 case WM8985_DAC_CONTROL:
114 case WM8985_LEFT_DAC_DIGITAL_VOL:
115 case WM8985_RIGHT_DAC_DIGITAL_VOL:
116 case WM8985_JACK_DETECT_CONTROL_2:
117 case WM8985_ADC_CONTROL:
118 case WM8985_LEFT_ADC_DIGITAL_VOL:
119 case WM8985_RIGHT_ADC_DIGITAL_VOL:
120 case WM8985_EQ1_LOW_SHELF:
121 case WM8985_EQ2_PEAK_1:
122 case WM8985_EQ3_PEAK_2:
123 case WM8985_EQ4_PEAK_3:
124 case WM8985_EQ5_HIGH_SHELF:
125 case WM8985_DAC_LIMITER_1:
126 case WM8985_DAC_LIMITER_2:
127 case WM8985_NOTCH_FILTER_1:
128 case WM8985_NOTCH_FILTER_2:
129 case WM8985_NOTCH_FILTER_3:
130 case WM8985_NOTCH_FILTER_4:
131 case WM8985_ALC_CONTROL_1:
132 case WM8985_ALC_CONTROL_2:
133 case WM8985_ALC_CONTROL_3:
134 case WM8985_NOISE_GATE:
135 case WM8985_PLL_N:
136 case WM8985_PLL_K_1:
137 case WM8985_PLL_K_2:
138 case WM8985_PLL_K_3:
139 case WM8985_3D_CONTROL:
140 case WM8985_OUT4_TO_ADC:
141 case WM8985_BEEP_CONTROL:
142 case WM8985_INPUT_CTRL:
143 case WM8985_LEFT_INP_PGA_GAIN_CTRL:
144 case WM8985_RIGHT_INP_PGA_GAIN_CTRL:
145 case WM8985_LEFT_ADC_BOOST_CTRL:
146 case WM8985_RIGHT_ADC_BOOST_CTRL:
147 case WM8985_OUTPUT_CTRL0:
148 case WM8985_LEFT_MIXER_CTRL:
149 case WM8985_RIGHT_MIXER_CTRL:
150 case WM8985_LOUT1_HP_VOLUME_CTRL:
151 case WM8985_ROUT1_HP_VOLUME_CTRL:
152 case WM8985_LOUT2_SPK_VOLUME_CTRL:
153 case WM8985_ROUT2_SPK_VOLUME_CTRL:
154 case WM8985_OUT3_MIXER_CTRL:
155 case WM8985_OUT4_MONO_MIX_CTRL:
156 case WM8985_OUTPUT_CTRL1:
157 case WM8985_BIAS_CTRL:
158 return true;
159 default:
160 return false;
161 }
162 }
163
164 /*
165 * latch bit 8 of these registers to ensure instant
166 * volume updates
167 */
168 static const int volume_update_regs[] = {
169 WM8985_LEFT_DAC_DIGITAL_VOL,
170 WM8985_RIGHT_DAC_DIGITAL_VOL,
171 WM8985_LEFT_ADC_DIGITAL_VOL,
172 WM8985_RIGHT_ADC_DIGITAL_VOL,
173 WM8985_LOUT2_SPK_VOLUME_CTRL,
174 WM8985_ROUT2_SPK_VOLUME_CTRL,
175 WM8985_LOUT1_HP_VOLUME_CTRL,
176 WM8985_ROUT1_HP_VOLUME_CTRL,
177 WM8985_LEFT_INP_PGA_GAIN_CTRL,
178 WM8985_RIGHT_INP_PGA_GAIN_CTRL
179 };
180
181 struct wm8985_priv {
182 struct regmap *regmap;
183 struct regulator_bulk_data supplies[WM8985_NUM_SUPPLIES];
184 unsigned int sysclk;
185 unsigned int bclk;
186 };
187
188 static const struct {
189 int div;
190 int ratio;
191 } fs_ratios[] = {
192 { 10, 128 },
193 { 15, 192 },
194 { 20, 256 },
195 { 30, 384 },
196 { 40, 512 },
197 { 60, 768 },
198 { 80, 1024 },
199 { 120, 1536 }
200 };
201
202 static const int srates[] = { 48000, 32000, 24000, 16000, 12000, 8000 };
203
204 static const int bclk_divs[] = {
205 1, 2, 4, 8, 16, 32
206 };
207
208 static int eqmode_get(struct snd_kcontrol *kcontrol,
209 struct snd_ctl_elem_value *ucontrol);
210 static int eqmode_put(struct snd_kcontrol *kcontrol,
211 struct snd_ctl_elem_value *ucontrol);
212
213 static const DECLARE_TLV_DB_SCALE(dac_tlv, -12700, 50, 1);
214 static const DECLARE_TLV_DB_SCALE(adc_tlv, -12700, 50, 1);
215 static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
216 static const DECLARE_TLV_DB_SCALE(lim_thresh_tlv, -600, 100, 0);
217 static const DECLARE_TLV_DB_SCALE(lim_boost_tlv, 0, 100, 0);
218 static const DECLARE_TLV_DB_SCALE(alc_min_tlv, -1200, 600, 0);
219 static const DECLARE_TLV_DB_SCALE(alc_max_tlv, -675, 600, 0);
220 static const DECLARE_TLV_DB_SCALE(alc_tar_tlv, -2250, 150, 0);
221 static const DECLARE_TLV_DB_SCALE(pga_vol_tlv, -1200, 75, 0);
222 static const DECLARE_TLV_DB_SCALE(boost_tlv, -1200, 300, 1);
223 static const DECLARE_TLV_DB_SCALE(eq_tlv, -1200, 100, 0);
224 static const DECLARE_TLV_DB_SCALE(aux_tlv, -1500, 300, 0);
225 static const DECLARE_TLV_DB_SCALE(bypass_tlv, -1500, 300, 0);
226 static const DECLARE_TLV_DB_SCALE(pga_boost_tlv, 0, 2000, 0);
227
228 static const char *alc_sel_text[] = { "Off", "Right", "Left", "Stereo" };
229 static SOC_ENUM_SINGLE_DECL(alc_sel, WM8985_ALC_CONTROL_1, 7, alc_sel_text);
230
231 static const char *alc_mode_text[] = { "ALC", "Limiter" };
232 static SOC_ENUM_SINGLE_DECL(alc_mode, WM8985_ALC_CONTROL_3, 8, alc_mode_text);
233
234 static const char *filter_mode_text[] = { "Audio", "Application" };
235 static SOC_ENUM_SINGLE_DECL(filter_mode, WM8985_ADC_CONTROL, 7,
236 filter_mode_text);
237
238 static const char *eq_bw_text[] = { "Narrow", "Wide" };
239 static const char *eqmode_text[] = { "Capture", "Playback" };
240 static SOC_ENUM_SINGLE_EXT_DECL(eqmode, eqmode_text);
241
242 static const char *eq1_cutoff_text[] = {
243 "80Hz", "105Hz", "135Hz", "175Hz"
244 };
245 static SOC_ENUM_SINGLE_DECL(eq1_cutoff, WM8985_EQ1_LOW_SHELF, 5,
246 eq1_cutoff_text);
247 static const char *eq2_cutoff_text[] = {
248 "230Hz", "300Hz", "385Hz", "500Hz"
249 };
250 static SOC_ENUM_SINGLE_DECL(eq2_bw, WM8985_EQ2_PEAK_1, 8, eq_bw_text);
251 static SOC_ENUM_SINGLE_DECL(eq2_cutoff, WM8985_EQ2_PEAK_1, 5, eq2_cutoff_text);
252 static const char *eq3_cutoff_text[] = {
253 "650Hz", "850Hz", "1.1kHz", "1.4kHz"
254 };
255 static SOC_ENUM_SINGLE_DECL(eq3_bw, WM8985_EQ3_PEAK_2, 8, eq_bw_text);
256 static SOC_ENUM_SINGLE_DECL(eq3_cutoff, WM8985_EQ3_PEAK_2, 5,
257 eq3_cutoff_text);
258 static const char *eq4_cutoff_text[] = {
259 "1.8kHz", "2.4kHz", "3.2kHz", "4.1kHz"
260 };
261 static SOC_ENUM_SINGLE_DECL(eq4_bw, WM8985_EQ4_PEAK_3, 8, eq_bw_text);
262 static SOC_ENUM_SINGLE_DECL(eq4_cutoff, WM8985_EQ4_PEAK_3, 5, eq4_cutoff_text);
263 static const char *eq5_cutoff_text[] = {
264 "5.3kHz", "6.9kHz", "9kHz", "11.7kHz"
265 };
266 static SOC_ENUM_SINGLE_DECL(eq5_cutoff, WM8985_EQ5_HIGH_SHELF, 5,
267 eq5_cutoff_text);
268
269 static const char *speaker_mode_text[] = { "Class A/B", "Class D" };
270 static SOC_ENUM_SINGLE_DECL(speaker_mode, 0x17, 8, speaker_mode_text);
271
272 static const char *depth_3d_text[] = {
273 "Off",
274 "6.67%",
275 "13.3%",
276 "20%",
277 "26.7%",
278 "33.3%",
279 "40%",
280 "46.6%",
281 "53.3%",
282 "60%",
283 "66.7%",
284 "73.3%",
285 "80%",
286 "86.7%",
287 "93.3%",
288 "100%"
289 };
290 static SOC_ENUM_SINGLE_DECL(depth_3d, WM8985_3D_CONTROL, 0, depth_3d_text);
291
292 static const struct snd_kcontrol_new wm8985_snd_controls[] = {
293 SOC_SINGLE("Digital Loopback Switch", WM8985_COMPANDING_CONTROL,
294 0, 1, 0),
295
296 SOC_ENUM("ALC Capture Function", alc_sel),
297 SOC_SINGLE_TLV("ALC Capture Max Volume", WM8985_ALC_CONTROL_1,
298 3, 7, 0, alc_max_tlv),
299 SOC_SINGLE_TLV("ALC Capture Min Volume", WM8985_ALC_CONTROL_1,
300 0, 7, 0, alc_min_tlv),
301 SOC_SINGLE_TLV("ALC Capture Target Volume", WM8985_ALC_CONTROL_2,
302 0, 15, 0, alc_tar_tlv),
303 SOC_SINGLE("ALC Capture Attack", WM8985_ALC_CONTROL_3, 0, 10, 0),
304 SOC_SINGLE("ALC Capture Hold", WM8985_ALC_CONTROL_2, 4, 10, 0),
305 SOC_SINGLE("ALC Capture Decay", WM8985_ALC_CONTROL_3, 4, 10, 0),
306 SOC_ENUM("ALC Mode", alc_mode),
307 SOC_SINGLE("ALC Capture NG Switch", WM8985_NOISE_GATE,
308 3, 1, 0),
309 SOC_SINGLE("ALC Capture NG Threshold", WM8985_NOISE_GATE,
310 0, 7, 1),
311
312 SOC_DOUBLE_R_TLV("Capture Volume", WM8985_LEFT_ADC_DIGITAL_VOL,
313 WM8985_RIGHT_ADC_DIGITAL_VOL, 0, 255, 0, adc_tlv),
314 SOC_DOUBLE_R("Capture PGA ZC Switch", WM8985_LEFT_INP_PGA_GAIN_CTRL,
315 WM8985_RIGHT_INP_PGA_GAIN_CTRL, 7, 1, 0),
316 SOC_DOUBLE_R_TLV("Capture PGA Volume", WM8985_LEFT_INP_PGA_GAIN_CTRL,
317 WM8985_RIGHT_INP_PGA_GAIN_CTRL, 0, 63, 0, pga_vol_tlv),
318
319 SOC_DOUBLE_R_TLV("Capture PGA Boost Volume",
320 WM8985_LEFT_ADC_BOOST_CTRL, WM8985_RIGHT_ADC_BOOST_CTRL,
321 8, 1, 0, pga_boost_tlv),
322
323 SOC_DOUBLE("ADC Inversion Switch", WM8985_ADC_CONTROL, 0, 1, 1, 0),
324 SOC_SINGLE("ADC 128x Oversampling Switch", WM8985_ADC_CONTROL, 8, 1, 0),
325
326 SOC_DOUBLE_R_TLV("Playback Volume", WM8985_LEFT_DAC_DIGITAL_VOL,
327 WM8985_RIGHT_DAC_DIGITAL_VOL, 0, 255, 0, dac_tlv),
328
329 SOC_SINGLE("DAC Playback Limiter Switch", WM8985_DAC_LIMITER_1, 8, 1, 0),
330 SOC_SINGLE("DAC Playback Limiter Decay", WM8985_DAC_LIMITER_1, 4, 10, 0),
331 SOC_SINGLE("DAC Playback Limiter Attack", WM8985_DAC_LIMITER_1, 0, 11, 0),
332 SOC_SINGLE_TLV("DAC Playback Limiter Threshold", WM8985_DAC_LIMITER_2,
333 4, 7, 1, lim_thresh_tlv),
334 SOC_SINGLE_TLV("DAC Playback Limiter Boost Volume", WM8985_DAC_LIMITER_2,
335 0, 12, 0, lim_boost_tlv),
336 SOC_DOUBLE("DAC Inversion Switch", WM8985_DAC_CONTROL, 0, 1, 1, 0),
337 SOC_SINGLE("DAC Auto Mute Switch", WM8985_DAC_CONTROL, 2, 1, 0),
338 SOC_SINGLE("DAC 128x Oversampling Switch", WM8985_DAC_CONTROL, 3, 1, 0),
339
340 SOC_DOUBLE_R_TLV("Headphone Playback Volume", WM8985_LOUT1_HP_VOLUME_CTRL,
341 WM8985_ROUT1_HP_VOLUME_CTRL, 0, 63, 0, out_tlv),
342 SOC_DOUBLE_R("Headphone Playback ZC Switch", WM8985_LOUT1_HP_VOLUME_CTRL,
343 WM8985_ROUT1_HP_VOLUME_CTRL, 7, 1, 0),
344 SOC_DOUBLE_R("Headphone Switch", WM8985_LOUT1_HP_VOLUME_CTRL,
345 WM8985_ROUT1_HP_VOLUME_CTRL, 6, 1, 1),
346
347 SOC_DOUBLE_R_TLV("Speaker Playback Volume", WM8985_LOUT2_SPK_VOLUME_CTRL,
348 WM8985_ROUT2_SPK_VOLUME_CTRL, 0, 63, 0, out_tlv),
349 SOC_DOUBLE_R("Speaker Playback ZC Switch", WM8985_LOUT2_SPK_VOLUME_CTRL,
350 WM8985_ROUT2_SPK_VOLUME_CTRL, 7, 1, 0),
351 SOC_DOUBLE_R("Speaker Switch", WM8985_LOUT2_SPK_VOLUME_CTRL,
352 WM8985_ROUT2_SPK_VOLUME_CTRL, 6, 1, 1),
353
354 SOC_SINGLE("High Pass Filter Switch", WM8985_ADC_CONTROL, 8, 1, 0),
355 SOC_ENUM("High Pass Filter Mode", filter_mode),
356 SOC_SINGLE("High Pass Filter Cutoff", WM8985_ADC_CONTROL, 4, 7, 0),
357
358 SOC_DOUBLE_R_TLV("Aux Bypass Volume",
359 WM8985_LEFT_MIXER_CTRL, WM8985_RIGHT_MIXER_CTRL, 6, 7, 0,
360 aux_tlv),
361
362 SOC_DOUBLE_R_TLV("Input PGA Bypass Volume",
363 WM8985_LEFT_MIXER_CTRL, WM8985_RIGHT_MIXER_CTRL, 2, 7, 0,
364 bypass_tlv),
365
366 SOC_ENUM_EXT("Equalizer Function", eqmode, eqmode_get, eqmode_put),
367 SOC_ENUM("EQ1 Cutoff", eq1_cutoff),
368 SOC_SINGLE_TLV("EQ1 Volume", WM8985_EQ1_LOW_SHELF, 0, 24, 1, eq_tlv),
369 SOC_ENUM("EQ2 Bandwidth", eq2_bw),
370 SOC_ENUM("EQ2 Cutoff", eq2_cutoff),
371 SOC_SINGLE_TLV("EQ2 Volume", WM8985_EQ2_PEAK_1, 0, 24, 1, eq_tlv),
372 SOC_ENUM("EQ3 Bandwidth", eq3_bw),
373 SOC_ENUM("EQ3 Cutoff", eq3_cutoff),
374 SOC_SINGLE_TLV("EQ3 Volume", WM8985_EQ3_PEAK_2, 0, 24, 1, eq_tlv),
375 SOC_ENUM("EQ4 Bandwidth", eq4_bw),
376 SOC_ENUM("EQ4 Cutoff", eq4_cutoff),
377 SOC_SINGLE_TLV("EQ4 Volume", WM8985_EQ4_PEAK_3, 0, 24, 1, eq_tlv),
378 SOC_ENUM("EQ5 Cutoff", eq5_cutoff),
379 SOC_SINGLE_TLV("EQ5 Volume", WM8985_EQ5_HIGH_SHELF, 0, 24, 1, eq_tlv),
380
381 SOC_ENUM("3D Depth", depth_3d),
382
383 SOC_ENUM("Speaker Mode", speaker_mode)
384 };
385
386 static const struct snd_kcontrol_new left_out_mixer[] = {
387 SOC_DAPM_SINGLE("Line Switch", WM8985_LEFT_MIXER_CTRL, 1, 1, 0),
388 SOC_DAPM_SINGLE("Aux Switch", WM8985_LEFT_MIXER_CTRL, 5, 1, 0),
389 SOC_DAPM_SINGLE("PCM Switch", WM8985_LEFT_MIXER_CTRL, 0, 1, 0),
390 };
391
392 static const struct snd_kcontrol_new right_out_mixer[] = {
393 SOC_DAPM_SINGLE("Line Switch", WM8985_RIGHT_MIXER_CTRL, 1, 1, 0),
394 SOC_DAPM_SINGLE("Aux Switch", WM8985_RIGHT_MIXER_CTRL, 5, 1, 0),
395 SOC_DAPM_SINGLE("PCM Switch", WM8985_RIGHT_MIXER_CTRL, 0, 1, 0),
396 };
397
398 static const struct snd_kcontrol_new left_input_mixer[] = {
399 SOC_DAPM_SINGLE("L2 Switch", WM8985_INPUT_CTRL, 2, 1, 0),
400 SOC_DAPM_SINGLE("MicN Switch", WM8985_INPUT_CTRL, 1, 1, 0),
401 SOC_DAPM_SINGLE("MicP Switch", WM8985_INPUT_CTRL, 0, 1, 0),
402 };
403
404 static const struct snd_kcontrol_new right_input_mixer[] = {
405 SOC_DAPM_SINGLE("R2 Switch", WM8985_INPUT_CTRL, 6, 1, 0),
406 SOC_DAPM_SINGLE("MicN Switch", WM8985_INPUT_CTRL, 5, 1, 0),
407 SOC_DAPM_SINGLE("MicP Switch", WM8985_INPUT_CTRL, 4, 1, 0),
408 };
409
410 static const struct snd_kcontrol_new left_boost_mixer[] = {
411 SOC_DAPM_SINGLE_TLV("L2 Volume", WM8985_LEFT_ADC_BOOST_CTRL,
412 4, 7, 0, boost_tlv),
413 SOC_DAPM_SINGLE_TLV("AUXL Volume", WM8985_LEFT_ADC_BOOST_CTRL,
414 0, 7, 0, boost_tlv)
415 };
416
417 static const struct snd_kcontrol_new right_boost_mixer[] = {
418 SOC_DAPM_SINGLE_TLV("R2 Volume", WM8985_RIGHT_ADC_BOOST_CTRL,
419 4, 7, 0, boost_tlv),
420 SOC_DAPM_SINGLE_TLV("AUXR Volume", WM8985_RIGHT_ADC_BOOST_CTRL,
421 0, 7, 0, boost_tlv)
422 };
423
424 static const struct snd_soc_dapm_widget wm8985_dapm_widgets[] = {
425 SND_SOC_DAPM_DAC("Left DAC", "Left Playback", WM8985_POWER_MANAGEMENT_3,
426 0, 0),
427 SND_SOC_DAPM_DAC("Right DAC", "Right Playback", WM8985_POWER_MANAGEMENT_3,
428 1, 0),
429 SND_SOC_DAPM_ADC("Left ADC", "Left Capture", WM8985_POWER_MANAGEMENT_2,
430 0, 0),
431 SND_SOC_DAPM_ADC("Right ADC", "Right Capture", WM8985_POWER_MANAGEMENT_2,
432 1, 0),
433
434 SND_SOC_DAPM_MIXER("Left Output Mixer", WM8985_POWER_MANAGEMENT_3,
435 2, 0, left_out_mixer, ARRAY_SIZE(left_out_mixer)),
436 SND_SOC_DAPM_MIXER("Right Output Mixer", WM8985_POWER_MANAGEMENT_3,
437 3, 0, right_out_mixer, ARRAY_SIZE(right_out_mixer)),
438
439 SND_SOC_DAPM_MIXER("Left Input Mixer", WM8985_POWER_MANAGEMENT_2,
440 2, 0, left_input_mixer, ARRAY_SIZE(left_input_mixer)),
441 SND_SOC_DAPM_MIXER("Right Input Mixer", WM8985_POWER_MANAGEMENT_2,
442 3, 0, right_input_mixer, ARRAY_SIZE(right_input_mixer)),
443
444 SND_SOC_DAPM_MIXER("Left Boost Mixer", WM8985_POWER_MANAGEMENT_2,
445 4, 0, left_boost_mixer, ARRAY_SIZE(left_boost_mixer)),
446 SND_SOC_DAPM_MIXER("Right Boost Mixer", WM8985_POWER_MANAGEMENT_2,
447 5, 0, right_boost_mixer, ARRAY_SIZE(right_boost_mixer)),
448
449 SND_SOC_DAPM_PGA("Left Capture PGA", WM8985_LEFT_INP_PGA_GAIN_CTRL,
450 6, 1, NULL, 0),
451 SND_SOC_DAPM_PGA("Right Capture PGA", WM8985_RIGHT_INP_PGA_GAIN_CTRL,
452 6, 1, NULL, 0),
453
454 SND_SOC_DAPM_PGA("Left Headphone Out", WM8985_POWER_MANAGEMENT_2,
455 7, 0, NULL, 0),
456 SND_SOC_DAPM_PGA("Right Headphone Out", WM8985_POWER_MANAGEMENT_2,
457 8, 0, NULL, 0),
458
459 SND_SOC_DAPM_PGA("Left Speaker Out", WM8985_POWER_MANAGEMENT_3,
460 5, 0, NULL, 0),
461 SND_SOC_DAPM_PGA("Right Speaker Out", WM8985_POWER_MANAGEMENT_3,
462 6, 0, NULL, 0),
463
464 SND_SOC_DAPM_SUPPLY("Mic Bias", WM8985_POWER_MANAGEMENT_1, 4, 0,
465 NULL, 0),
466
467 SND_SOC_DAPM_INPUT("LIN"),
468 SND_SOC_DAPM_INPUT("LIP"),
469 SND_SOC_DAPM_INPUT("RIN"),
470 SND_SOC_DAPM_INPUT("RIP"),
471 SND_SOC_DAPM_INPUT("AUXL"),
472 SND_SOC_DAPM_INPUT("AUXR"),
473 SND_SOC_DAPM_INPUT("L2"),
474 SND_SOC_DAPM_INPUT("R2"),
475 SND_SOC_DAPM_OUTPUT("HPL"),
476 SND_SOC_DAPM_OUTPUT("HPR"),
477 SND_SOC_DAPM_OUTPUT("SPKL"),
478 SND_SOC_DAPM_OUTPUT("SPKR")
479 };
480
481 static const struct snd_soc_dapm_route wm8985_dapm_routes[] = {
482 { "Right Output Mixer", "PCM Switch", "Right DAC" },
483 { "Right Output Mixer", "Aux Switch", "AUXR" },
484 { "Right Output Mixer", "Line Switch", "Right Boost Mixer" },
485
486 { "Left Output Mixer", "PCM Switch", "Left DAC" },
487 { "Left Output Mixer", "Aux Switch", "AUXL" },
488 { "Left Output Mixer", "Line Switch", "Left Boost Mixer" },
489
490 { "Right Headphone Out", NULL, "Right Output Mixer" },
491 { "HPR", NULL, "Right Headphone Out" },
492
493 { "Left Headphone Out", NULL, "Left Output Mixer" },
494 { "HPL", NULL, "Left Headphone Out" },
495
496 { "Right Speaker Out", NULL, "Right Output Mixer" },
497 { "SPKR", NULL, "Right Speaker Out" },
498
499 { "Left Speaker Out", NULL, "Left Output Mixer" },
500 { "SPKL", NULL, "Left Speaker Out" },
501
502 { "Right ADC", NULL, "Right Boost Mixer" },
503
504 { "Right Boost Mixer", "AUXR Volume", "AUXR" },
505 { "Right Boost Mixer", NULL, "Right Capture PGA" },
506 { "Right Boost Mixer", "R2 Volume", "R2" },
507
508 { "Left ADC", NULL, "Left Boost Mixer" },
509
510 { "Left Boost Mixer", "AUXL Volume", "AUXL" },
511 { "Left Boost Mixer", NULL, "Left Capture PGA" },
512 { "Left Boost Mixer", "L2 Volume", "L2" },
513
514 { "Right Capture PGA", NULL, "Right Input Mixer" },
515 { "Left Capture PGA", NULL, "Left Input Mixer" },
516
517 { "Right Input Mixer", "R2 Switch", "R2" },
518 { "Right Input Mixer", "MicN Switch", "RIN" },
519 { "Right Input Mixer", "MicP Switch", "RIP" },
520
521 { "Left Input Mixer", "L2 Switch", "L2" },
522 { "Left Input Mixer", "MicN Switch", "LIN" },
523 { "Left Input Mixer", "MicP Switch", "LIP" },
524 };
525
526 static int eqmode_get(struct snd_kcontrol *kcontrol,
527 struct snd_ctl_elem_value *ucontrol)
528 {
529 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
530 unsigned int reg;
531
532 reg = snd_soc_read(codec, WM8985_EQ1_LOW_SHELF);
533 if (reg & WM8985_EQ3DMODE)
534 ucontrol->value.enumerated.item[0] = 1;
535 else
536 ucontrol->value.enumerated.item[0] = 0;
537
538 return 0;
539 }
540
541 static int eqmode_put(struct snd_kcontrol *kcontrol,
542 struct snd_ctl_elem_value *ucontrol)
543 {
544 struct snd_soc_codec *codec = snd_soc_kcontrol_codec(kcontrol);
545 unsigned int regpwr2, regpwr3;
546 unsigned int reg_eq;
547
548 if (ucontrol->value.enumerated.item[0] != 0
549 && ucontrol->value.enumerated.item[0] != 1)
550 return -EINVAL;
551
552 reg_eq = snd_soc_read(codec, WM8985_EQ1_LOW_SHELF);
553 switch ((reg_eq & WM8985_EQ3DMODE) >> WM8985_EQ3DMODE_SHIFT) {
554 case 0:
555 if (!ucontrol->value.enumerated.item[0])
556 return 0;
557 break;
558 case 1:
559 if (ucontrol->value.enumerated.item[0])
560 return 0;
561 break;
562 }
563
564 regpwr2 = snd_soc_read(codec, WM8985_POWER_MANAGEMENT_2);
565 regpwr3 = snd_soc_read(codec, WM8985_POWER_MANAGEMENT_3);
566 /* disable the DACs and ADCs */
567 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_2,
568 WM8985_ADCENR_MASK | WM8985_ADCENL_MASK, 0);
569 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_3,
570 WM8985_DACENR_MASK | WM8985_DACENL_MASK, 0);
571 snd_soc_update_bits(codec, WM8985_ADDITIONAL_CONTROL,
572 WM8985_M128ENB_MASK, WM8985_M128ENB);
573 /* set the desired eqmode */
574 snd_soc_update_bits(codec, WM8985_EQ1_LOW_SHELF,
575 WM8985_EQ3DMODE_MASK,
576 ucontrol->value.enumerated.item[0]
577 << WM8985_EQ3DMODE_SHIFT);
578 /* restore DAC/ADC configuration */
579 snd_soc_write(codec, WM8985_POWER_MANAGEMENT_2, regpwr2);
580 snd_soc_write(codec, WM8985_POWER_MANAGEMENT_3, regpwr3);
581 return 0;
582 }
583
584 static int wm8985_reset(struct snd_soc_codec *codec)
585 {
586 return snd_soc_write(codec, WM8985_SOFTWARE_RESET, 0x0);
587 }
588
589 static int wm8985_dac_mute(struct snd_soc_dai *dai, int mute)
590 {
591 struct snd_soc_codec *codec = dai->codec;
592
593 return snd_soc_update_bits(codec, WM8985_DAC_CONTROL,
594 WM8985_SOFTMUTE_MASK,
595 !!mute << WM8985_SOFTMUTE_SHIFT);
596 }
597
598 static int wm8985_set_fmt(struct snd_soc_dai *dai, unsigned int fmt)
599 {
600 struct snd_soc_codec *codec;
601 u16 format, master, bcp, lrp;
602
603 codec = dai->codec;
604
605 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
606 case SND_SOC_DAIFMT_I2S:
607 format = 0x2;
608 break;
609 case SND_SOC_DAIFMT_RIGHT_J:
610 format = 0x0;
611 break;
612 case SND_SOC_DAIFMT_LEFT_J:
613 format = 0x1;
614 break;
615 case SND_SOC_DAIFMT_DSP_A:
616 case SND_SOC_DAIFMT_DSP_B:
617 format = 0x3;
618 break;
619 default:
620 dev_err(dai->dev, "Unknown dai format\n");
621 return -EINVAL;
622 }
623
624 snd_soc_update_bits(codec, WM8985_AUDIO_INTERFACE,
625 WM8985_FMT_MASK, format << WM8985_FMT_SHIFT);
626
627 switch (fmt & SND_SOC_DAIFMT_MASTER_MASK) {
628 case SND_SOC_DAIFMT_CBM_CFM:
629 master = 1;
630 break;
631 case SND_SOC_DAIFMT_CBS_CFS:
632 master = 0;
633 break;
634 default:
635 dev_err(dai->dev, "Unknown master/slave configuration\n");
636 return -EINVAL;
637 }
638
639 snd_soc_update_bits(codec, WM8985_CLOCK_GEN_CONTROL,
640 WM8985_MS_MASK, master << WM8985_MS_SHIFT);
641
642 /* frame inversion is not valid for dsp modes */
643 switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
644 case SND_SOC_DAIFMT_DSP_A:
645 case SND_SOC_DAIFMT_DSP_B:
646 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
647 case SND_SOC_DAIFMT_IB_IF:
648 case SND_SOC_DAIFMT_NB_IF:
649 return -EINVAL;
650 default:
651 break;
652 }
653 break;
654 default:
655 break;
656 }
657
658 bcp = lrp = 0;
659 switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
660 case SND_SOC_DAIFMT_NB_NF:
661 break;
662 case SND_SOC_DAIFMT_IB_IF:
663 bcp = lrp = 1;
664 break;
665 case SND_SOC_DAIFMT_IB_NF:
666 bcp = 1;
667 break;
668 case SND_SOC_DAIFMT_NB_IF:
669 lrp = 1;
670 break;
671 default:
672 dev_err(dai->dev, "Unknown polarity configuration\n");
673 return -EINVAL;
674 }
675
676 snd_soc_update_bits(codec, WM8985_AUDIO_INTERFACE,
677 WM8985_LRP_MASK, lrp << WM8985_LRP_SHIFT);
678 snd_soc_update_bits(codec, WM8985_AUDIO_INTERFACE,
679 WM8985_BCP_MASK, bcp << WM8985_BCP_SHIFT);
680 return 0;
681 }
682
683 static int wm8985_hw_params(struct snd_pcm_substream *substream,
684 struct snd_pcm_hw_params *params,
685 struct snd_soc_dai *dai)
686 {
687 int i;
688 struct snd_soc_codec *codec;
689 struct wm8985_priv *wm8985;
690 u16 blen, srate_idx;
691 unsigned int tmp;
692 int srate_best;
693
694 codec = dai->codec;
695 wm8985 = snd_soc_codec_get_drvdata(codec);
696
697 wm8985->bclk = snd_soc_params_to_bclk(params);
698 if ((int)wm8985->bclk < 0)
699 return wm8985->bclk;
700
701 switch (params_width(params)) {
702 case 16:
703 blen = 0x0;
704 break;
705 case 20:
706 blen = 0x1;
707 break;
708 case 24:
709 blen = 0x2;
710 break;
711 case 32:
712 blen = 0x3;
713 break;
714 default:
715 dev_err(dai->dev, "Unsupported word length %u\n",
716 params_width(params));
717 return -EINVAL;
718 }
719
720 snd_soc_update_bits(codec, WM8985_AUDIO_INTERFACE,
721 WM8985_WL_MASK, blen << WM8985_WL_SHIFT);
722
723 /*
724 * match to the nearest possible sample rate and rely
725 * on the array index to configure the SR register
726 */
727 srate_idx = 0;
728 srate_best = abs(srates[0] - params_rate(params));
729 for (i = 1; i < ARRAY_SIZE(srates); ++i) {
730 if (abs(srates[i] - params_rate(params)) >= srate_best)
731 continue;
732 srate_idx = i;
733 srate_best = abs(srates[i] - params_rate(params));
734 }
735
736 dev_dbg(dai->dev, "Selected SRATE = %d\n", srates[srate_idx]);
737 snd_soc_update_bits(codec, WM8985_ADDITIONAL_CONTROL,
738 WM8985_SR_MASK, srate_idx << WM8985_SR_SHIFT);
739
740 dev_dbg(dai->dev, "Target BCLK = %uHz\n", wm8985->bclk);
741 dev_dbg(dai->dev, "SYSCLK = %uHz\n", wm8985->sysclk);
742
743 for (i = 0; i < ARRAY_SIZE(fs_ratios); ++i) {
744 if (wm8985->sysclk / params_rate(params)
745 == fs_ratios[i].ratio)
746 break;
747 }
748
749 if (i == ARRAY_SIZE(fs_ratios)) {
750 dev_err(dai->dev, "Unable to configure MCLK ratio %u/%u\n",
751 wm8985->sysclk, params_rate(params));
752 return -EINVAL;
753 }
754
755 dev_dbg(dai->dev, "MCLK ratio = %dfs\n", fs_ratios[i].ratio);
756 snd_soc_update_bits(codec, WM8985_CLOCK_GEN_CONTROL,
757 WM8985_MCLKDIV_MASK, i << WM8985_MCLKDIV_SHIFT);
758
759 /* select the appropriate bclk divider */
760 tmp = (wm8985->sysclk / fs_ratios[i].div) * 10;
761 for (i = 0; i < ARRAY_SIZE(bclk_divs); ++i) {
762 if (wm8985->bclk == tmp / bclk_divs[i])
763 break;
764 }
765
766 if (i == ARRAY_SIZE(bclk_divs)) {
767 dev_err(dai->dev, "No matching BCLK divider found\n");
768 return -EINVAL;
769 }
770
771 dev_dbg(dai->dev, "BCLK div = %d\n", i);
772 snd_soc_update_bits(codec, WM8985_CLOCK_GEN_CONTROL,
773 WM8985_BCLKDIV_MASK, i << WM8985_BCLKDIV_SHIFT);
774 return 0;
775 }
776
777 struct pll_div {
778 u32 div2:1;
779 u32 n:4;
780 u32 k:24;
781 };
782
783 #define FIXED_PLL_SIZE ((1ULL << 24) * 10)
784 static int pll_factors(struct pll_div *pll_div, unsigned int target,
785 unsigned int source)
786 {
787 u64 Kpart;
788 unsigned long int K, Ndiv, Nmod;
789
790 pll_div->div2 = 0;
791 Ndiv = target / source;
792 if (Ndiv < 6) {
793 source >>= 1;
794 pll_div->div2 = 1;
795 Ndiv = target / source;
796 }
797
798 if (Ndiv < 6 || Ndiv > 12) {
799 printk(KERN_ERR "%s: WM8985 N value is not within"
800 " the recommended range: %lu\n", __func__, Ndiv);
801 return -EINVAL;
802 }
803 pll_div->n = Ndiv;
804
805 Nmod = target % source;
806 Kpart = FIXED_PLL_SIZE * (u64)Nmod;
807
808 do_div(Kpart, source);
809
810 K = Kpart & 0xffffffff;
811 if ((K % 10) >= 5)
812 K += 5;
813 K /= 10;
814 pll_div->k = K;
815
816 return 0;
817 }
818
819 static int wm8985_set_pll(struct snd_soc_dai *dai, int pll_id,
820 int source, unsigned int freq_in,
821 unsigned int freq_out)
822 {
823 int ret;
824 struct snd_soc_codec *codec;
825 struct pll_div pll_div;
826
827 codec = dai->codec;
828 if (!freq_in || !freq_out) {
829 /* disable the PLL */
830 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1,
831 WM8985_PLLEN_MASK, 0);
832 } else {
833 ret = pll_factors(&pll_div, freq_out * 4 * 2, freq_in);
834 if (ret)
835 return ret;
836
837 /* set PLLN and PRESCALE */
838 snd_soc_write(codec, WM8985_PLL_N,
839 (pll_div.div2 << WM8985_PLL_PRESCALE_SHIFT)
840 | pll_div.n);
841 /* set PLLK */
842 snd_soc_write(codec, WM8985_PLL_K_3, pll_div.k & 0x1ff);
843 snd_soc_write(codec, WM8985_PLL_K_2, (pll_div.k >> 9) & 0x1ff);
844 snd_soc_write(codec, WM8985_PLL_K_1, (pll_div.k >> 18));
845 /* set the source of the clock to be the PLL */
846 snd_soc_update_bits(codec, WM8985_CLOCK_GEN_CONTROL,
847 WM8985_CLKSEL_MASK, WM8985_CLKSEL);
848 /* enable the PLL */
849 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1,
850 WM8985_PLLEN_MASK, WM8985_PLLEN);
851 }
852 return 0;
853 }
854
855 static int wm8985_set_sysclk(struct snd_soc_dai *dai,
856 int clk_id, unsigned int freq, int dir)
857 {
858 struct snd_soc_codec *codec;
859 struct wm8985_priv *wm8985;
860
861 codec = dai->codec;
862 wm8985 = snd_soc_codec_get_drvdata(codec);
863
864 switch (clk_id) {
865 case WM8985_CLKSRC_MCLK:
866 snd_soc_update_bits(codec, WM8985_CLOCK_GEN_CONTROL,
867 WM8985_CLKSEL_MASK, 0);
868 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1,
869 WM8985_PLLEN_MASK, 0);
870 break;
871 case WM8985_CLKSRC_PLL:
872 snd_soc_update_bits(codec, WM8985_CLOCK_GEN_CONTROL,
873 WM8985_CLKSEL_MASK, WM8985_CLKSEL);
874 break;
875 default:
876 dev_err(dai->dev, "Unknown clock source %d\n", clk_id);
877 return -EINVAL;
878 }
879
880 wm8985->sysclk = freq;
881 return 0;
882 }
883
884 static int wm8985_set_bias_level(struct snd_soc_codec *codec,
885 enum snd_soc_bias_level level)
886 {
887 int ret;
888 struct wm8985_priv *wm8985;
889
890 wm8985 = snd_soc_codec_get_drvdata(codec);
891 switch (level) {
892 case SND_SOC_BIAS_ON:
893 case SND_SOC_BIAS_PREPARE:
894 /* VMID at 75k */
895 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1,
896 WM8985_VMIDSEL_MASK,
897 1 << WM8985_VMIDSEL_SHIFT);
898 break;
899 case SND_SOC_BIAS_STANDBY:
900 if (snd_soc_codec_get_bias_level(codec) == SND_SOC_BIAS_OFF) {
901 ret = regulator_bulk_enable(ARRAY_SIZE(wm8985->supplies),
902 wm8985->supplies);
903 if (ret) {
904 dev_err(codec->dev,
905 "Failed to enable supplies: %d\n",
906 ret);
907 return ret;
908 }
909
910 regcache_sync(wm8985->regmap);
911
912 /* enable anti-pop features */
913 snd_soc_update_bits(codec, WM8985_OUT4_TO_ADC,
914 WM8985_POBCTRL_MASK,
915 WM8985_POBCTRL);
916 /* enable thermal shutdown */
917 snd_soc_update_bits(codec, WM8985_OUTPUT_CTRL0,
918 WM8985_TSDEN_MASK, WM8985_TSDEN);
919 snd_soc_update_bits(codec, WM8985_OUTPUT_CTRL0,
920 WM8985_TSOPCTRL_MASK,
921 WM8985_TSOPCTRL);
922 /* enable BIASEN */
923 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1,
924 WM8985_BIASEN_MASK, WM8985_BIASEN);
925 /* VMID at 75k */
926 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1,
927 WM8985_VMIDSEL_MASK,
928 1 << WM8985_VMIDSEL_SHIFT);
929 msleep(500);
930 /* disable anti-pop features */
931 snd_soc_update_bits(codec, WM8985_OUT4_TO_ADC,
932 WM8985_POBCTRL_MASK, 0);
933 }
934 /* VMID at 300k */
935 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1,
936 WM8985_VMIDSEL_MASK,
937 2 << WM8985_VMIDSEL_SHIFT);
938 break;
939 case SND_SOC_BIAS_OFF:
940 /* disable thermal shutdown */
941 snd_soc_update_bits(codec, WM8985_OUTPUT_CTRL0,
942 WM8985_TSOPCTRL_MASK, 0);
943 snd_soc_update_bits(codec, WM8985_OUTPUT_CTRL0,
944 WM8985_TSDEN_MASK, 0);
945 /* disable VMIDSEL and BIASEN */
946 snd_soc_update_bits(codec, WM8985_POWER_MANAGEMENT_1,
947 WM8985_VMIDSEL_MASK | WM8985_BIASEN_MASK,
948 0);
949 snd_soc_write(codec, WM8985_POWER_MANAGEMENT_1, 0);
950 snd_soc_write(codec, WM8985_POWER_MANAGEMENT_2, 0);
951 snd_soc_write(codec, WM8985_POWER_MANAGEMENT_3, 0);
952
953 regcache_mark_dirty(wm8985->regmap);
954
955 regulator_bulk_disable(ARRAY_SIZE(wm8985->supplies),
956 wm8985->supplies);
957 break;
958 }
959
960 return 0;
961 }
962
963 static int wm8985_probe(struct snd_soc_codec *codec)
964 {
965 size_t i;
966 struct wm8985_priv *wm8985;
967 int ret;
968
969 wm8985 = snd_soc_codec_get_drvdata(codec);
970
971 for (i = 0; i < ARRAY_SIZE(wm8985->supplies); i++)
972 wm8985->supplies[i].supply = wm8985_supply_names[i];
973
974 ret = devm_regulator_bulk_get(codec->dev, ARRAY_SIZE(wm8985->supplies),
975 wm8985->supplies);
976 if (ret) {
977 dev_err(codec->dev, "Failed to request supplies: %d\n", ret);
978 return ret;
979 }
980
981 ret = regulator_bulk_enable(ARRAY_SIZE(wm8985->supplies),
982 wm8985->supplies);
983 if (ret) {
984 dev_err(codec->dev, "Failed to enable supplies: %d\n", ret);
985 return ret;
986 }
987
988 ret = wm8985_reset(codec);
989 if (ret < 0) {
990 dev_err(codec->dev, "Failed to issue reset: %d\n", ret);
991 goto err_reg_enable;
992 }
993
994 /* latch volume update bits */
995 for (i = 0; i < ARRAY_SIZE(volume_update_regs); ++i)
996 snd_soc_update_bits(codec, volume_update_regs[i],
997 0x100, 0x100);
998 /* enable BIASCUT */
999 snd_soc_update_bits(codec, WM8985_BIAS_CTRL, WM8985_BIASCUT,
1000 WM8985_BIASCUT);
1001
1002 return 0;
1003
1004 err_reg_enable:
1005 regulator_bulk_disable(ARRAY_SIZE(wm8985->supplies), wm8985->supplies);
1006 return ret;
1007 }
1008
1009 static const struct snd_soc_dai_ops wm8985_dai_ops = {
1010 .digital_mute = wm8985_dac_mute,
1011 .hw_params = wm8985_hw_params,
1012 .set_fmt = wm8985_set_fmt,
1013 .set_sysclk = wm8985_set_sysclk,
1014 .set_pll = wm8985_set_pll
1015 };
1016
1017 #define WM8985_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE | \
1018 SNDRV_PCM_FMTBIT_S24_LE | SNDRV_PCM_FMTBIT_S32_LE)
1019
1020 static struct snd_soc_dai_driver wm8985_dai = {
1021 .name = "wm8985-hifi",
1022 .playback = {
1023 .stream_name = "Playback",
1024 .channels_min = 2,
1025 .channels_max = 2,
1026 .rates = SNDRV_PCM_RATE_8000_48000,
1027 .formats = WM8985_FORMATS,
1028 },
1029 .capture = {
1030 .stream_name = "Capture",
1031 .channels_min = 2,
1032 .channels_max = 2,
1033 .rates = SNDRV_PCM_RATE_8000_48000,
1034 .formats = WM8985_FORMATS,
1035 },
1036 .ops = &wm8985_dai_ops,
1037 .symmetric_rates = 1
1038 };
1039
1040 static struct snd_soc_codec_driver soc_codec_dev_wm8985 = {
1041 .probe = wm8985_probe,
1042 .set_bias_level = wm8985_set_bias_level,
1043 .suspend_bias_off = true,
1044
1045 .controls = wm8985_snd_controls,
1046 .num_controls = ARRAY_SIZE(wm8985_snd_controls),
1047 .dapm_widgets = wm8985_dapm_widgets,
1048 .num_dapm_widgets = ARRAY_SIZE(wm8985_dapm_widgets),
1049 .dapm_routes = wm8985_dapm_routes,
1050 .num_dapm_routes = ARRAY_SIZE(wm8985_dapm_routes),
1051 };
1052
1053 static const struct regmap_config wm8985_regmap = {
1054 .reg_bits = 7,
1055 .val_bits = 9,
1056
1057 .max_register = WM8985_MAX_REGISTER,
1058 .writeable_reg = wm8985_writeable,
1059
1060 .cache_type = REGCACHE_RBTREE,
1061 .reg_defaults = wm8985_reg_defaults,
1062 .num_reg_defaults = ARRAY_SIZE(wm8985_reg_defaults),
1063 };
1064
1065 #if defined(CONFIG_SPI_MASTER)
1066 static int wm8985_spi_probe(struct spi_device *spi)
1067 {
1068 struct wm8985_priv *wm8985;
1069 int ret;
1070
1071 wm8985 = devm_kzalloc(&spi->dev, sizeof *wm8985, GFP_KERNEL);
1072 if (!wm8985)
1073 return -ENOMEM;
1074
1075 spi_set_drvdata(spi, wm8985);
1076
1077 wm8985->regmap = devm_regmap_init_spi(spi, &wm8985_regmap);
1078 if (IS_ERR(wm8985->regmap)) {
1079 ret = PTR_ERR(wm8985->regmap);
1080 dev_err(&spi->dev, "Failed to allocate register map: %d\n",
1081 ret);
1082 return ret;
1083 }
1084
1085 ret = snd_soc_register_codec(&spi->dev,
1086 &soc_codec_dev_wm8985, &wm8985_dai, 1);
1087 return ret;
1088 }
1089
1090 static int wm8985_spi_remove(struct spi_device *spi)
1091 {
1092 snd_soc_unregister_codec(&spi->dev);
1093 return 0;
1094 }
1095
1096 static struct spi_driver wm8985_spi_driver = {
1097 .driver = {
1098 .name = "wm8985",
1099 },
1100 .probe = wm8985_spi_probe,
1101 .remove = wm8985_spi_remove
1102 };
1103 #endif
1104
1105 #if IS_ENABLED(CONFIG_I2C)
1106 static int wm8985_i2c_probe(struct i2c_client *i2c,
1107 const struct i2c_device_id *id)
1108 {
1109 struct wm8985_priv *wm8985;
1110 int ret;
1111
1112 wm8985 = devm_kzalloc(&i2c->dev, sizeof *wm8985, GFP_KERNEL);
1113 if (!wm8985)
1114 return -ENOMEM;
1115
1116 i2c_set_clientdata(i2c, wm8985);
1117
1118 wm8985->regmap = devm_regmap_init_i2c(i2c, &wm8985_regmap);
1119 if (IS_ERR(wm8985->regmap)) {
1120 ret = PTR_ERR(wm8985->regmap);
1121 dev_err(&i2c->dev, "Failed to allocate register map: %d\n",
1122 ret);
1123 return ret;
1124 }
1125
1126 ret = snd_soc_register_codec(&i2c->dev,
1127 &soc_codec_dev_wm8985, &wm8985_dai, 1);
1128 return ret;
1129 }
1130
1131 static int wm8985_i2c_remove(struct i2c_client *i2c)
1132 {
1133 snd_soc_unregister_codec(&i2c->dev);
1134 return 0;
1135 }
1136
1137 static const struct i2c_device_id wm8985_i2c_id[] = {
1138 { "wm8985", 0 },
1139 { }
1140 };
1141 MODULE_DEVICE_TABLE(i2c, wm8985_i2c_id);
1142
1143 static struct i2c_driver wm8985_i2c_driver = {
1144 .driver = {
1145 .name = "wm8985",
1146 },
1147 .probe = wm8985_i2c_probe,
1148 .remove = wm8985_i2c_remove,
1149 .id_table = wm8985_i2c_id
1150 };
1151 #endif
1152
1153 static int __init wm8985_modinit(void)
1154 {
1155 int ret = 0;
1156
1157 #if IS_ENABLED(CONFIG_I2C)
1158 ret = i2c_add_driver(&wm8985_i2c_driver);
1159 if (ret) {
1160 printk(KERN_ERR "Failed to register wm8985 I2C driver: %d\n",
1161 ret);
1162 }
1163 #endif
1164 #if defined(CONFIG_SPI_MASTER)
1165 ret = spi_register_driver(&wm8985_spi_driver);
1166 if (ret != 0) {
1167 printk(KERN_ERR "Failed to register wm8985 SPI driver: %d\n",
1168 ret);
1169 }
1170 #endif
1171 return ret;
1172 }
1173 module_init(wm8985_modinit);
1174
1175 static void __exit wm8985_exit(void)
1176 {
1177 #if IS_ENABLED(CONFIG_I2C)
1178 i2c_del_driver(&wm8985_i2c_driver);
1179 #endif
1180 #if defined(CONFIG_SPI_MASTER)
1181 spi_unregister_driver(&wm8985_spi_driver);
1182 #endif
1183 }
1184 module_exit(wm8985_exit);
1185
1186 MODULE_DESCRIPTION("ASoC WM8985 driver");
1187 MODULE_AUTHOR("Dimitris Papastamos <dp@opensource.wolfsonmicro.com>");
1188 MODULE_LICENSE("GPL");
Linux with added FPC-III support