1 /*
2 * ALSA SoC WM9090 driver
3 *
4 * Copyright 2009-12 Wolfson Microelectronics
5 *
6 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
7 *
8 * This program is free software; you can redistribute it and/or
9 * modify it under the terms of the GNU General Public License
10 * version 2 as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope that it will be useful, but
13 * WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
15 * General Public License for more details.
16 *
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
20 * 02110-1301 USA
21 */
22
23 #include <linux/module.h>
24 #include <linux/errno.h>
25 #include <linux/device.h>
26 #include <linux/i2c.h>
27 #include <linux/delay.h>
28 #include <linux/regmap.h>
29 #include <linux/slab.h>
30 #include <sound/initval.h>
31 #include <sound/soc.h>
32 #include <sound/tlv.h>
33 #include <sound/wm9090.h>
34
35 #include "wm9090.h"
36
37 static const struct reg_default wm9090_reg_defaults[] = {
38 { 1, 0x0006 }, /* R1 - Power Management (1) */
39 { 2, 0x6000 }, /* R2 - Power Management (2) */
40 { 3, 0x0000 }, /* R3 - Power Management (3) */
41 { 6, 0x01C0 }, /* R6 - Clocking 1 */
42 { 22, 0x0003 }, /* R22 - IN1 Line Control */
43 { 23, 0x0003 }, /* R23 - IN2 Line Control */
44 { 24, 0x0083 }, /* R24 - IN1 Line Input A Volume */
45 { 25, 0x0083 }, /* R25 - IN1 Line Input B Volume */
46 { 26, 0x0083 }, /* R26 - IN2 Line Input A Volume */
47 { 27, 0x0083 }, /* R27 - IN2 Line Input B Volume */
48 { 28, 0x002D }, /* R28 - Left Output Volume */
49 { 29, 0x002D }, /* R29 - Right Output Volume */
50 { 34, 0x0100 }, /* R34 - SPKMIXL Attenuation */
51 { 35, 0x0010 }, /* R36 - SPKOUT Mixers */
52 { 37, 0x0140 }, /* R37 - ClassD3 */
53 { 38, 0x0039 }, /* R38 - Speaker Volume Left */
54 { 45, 0x0000 }, /* R45 - Output Mixer1 */
55 { 46, 0x0000 }, /* R46 - Output Mixer2 */
56 { 47, 0x0100 }, /* R47 - Output Mixer3 */
57 { 48, 0x0100 }, /* R48 - Output Mixer4 */
58 { 54, 0x0000 }, /* R54 - Speaker Mixer */
59 { 57, 0x000D }, /* R57 - AntiPOP2 */
60 { 70, 0x0000 }, /* R70 - Write Sequencer 0 */
61 { 71, 0x0000 }, /* R71 - Write Sequencer 1 */
62 { 72, 0x0000 }, /* R72 - Write Sequencer 2 */
63 { 73, 0x0000 }, /* R73 - Write Sequencer 3 */
64 { 74, 0x0000 }, /* R74 - Write Sequencer 4 */
65 { 75, 0x0000 }, /* R75 - Write Sequencer 5 */
66 { 76, 0x1F25 }, /* R76 - Charge Pump 1 */
67 { 85, 0x054A }, /* R85 - DC Servo 1 */
68 { 87, 0x0000 }, /* R87 - DC Servo 3 */
69 { 96, 0x0100 }, /* R96 - Analogue HP 0 */
70 { 98, 0x8640 }, /* R98 - AGC Control 0 */
71 { 99, 0xC000 }, /* R99 - AGC Control 1 */
72 { 100, 0x0200 }, /* R100 - AGC Control 2 */
73 };
74
75 /* This struct is used to save the context */
76 struct wm9090_priv {
77 struct wm9090_platform_data pdata;
78 struct regmap *regmap;
79 };
80
81 static bool wm9090_volatile(struct device *dev, unsigned int reg)
82 {
83 switch (reg) {
84 case WM9090_SOFTWARE_RESET:
85 case WM9090_DC_SERVO_0:
86 case WM9090_DC_SERVO_READBACK_0:
87 case WM9090_DC_SERVO_READBACK_1:
88 case WM9090_DC_SERVO_READBACK_2:
89 return true;
90
91 default:
92 return false;
93 }
94 }
95
96 static bool wm9090_readable(struct device *dev, unsigned int reg)
97 {
98 switch (reg) {
99 case WM9090_SOFTWARE_RESET:
100 case WM9090_POWER_MANAGEMENT_1:
101 case WM9090_POWER_MANAGEMENT_2:
102 case WM9090_POWER_MANAGEMENT_3:
103 case WM9090_CLOCKING_1:
104 case WM9090_IN1_LINE_CONTROL:
105 case WM9090_IN2_LINE_CONTROL:
106 case WM9090_IN1_LINE_INPUT_A_VOLUME:
107 case WM9090_IN1_LINE_INPUT_B_VOLUME:
108 case WM9090_IN2_LINE_INPUT_A_VOLUME:
109 case WM9090_IN2_LINE_INPUT_B_VOLUME:
110 case WM9090_LEFT_OUTPUT_VOLUME:
111 case WM9090_RIGHT_OUTPUT_VOLUME:
112 case WM9090_SPKMIXL_ATTENUATION:
113 case WM9090_SPKOUT_MIXERS:
114 case WM9090_CLASSD3:
115 case WM9090_SPEAKER_VOLUME_LEFT:
116 case WM9090_OUTPUT_MIXER1:
117 case WM9090_OUTPUT_MIXER2:
118 case WM9090_OUTPUT_MIXER3:
119 case WM9090_OUTPUT_MIXER4:
120 case WM9090_SPEAKER_MIXER:
121 case WM9090_ANTIPOP2:
122 case WM9090_WRITE_SEQUENCER_0:
123 case WM9090_WRITE_SEQUENCER_1:
124 case WM9090_WRITE_SEQUENCER_2:
125 case WM9090_WRITE_SEQUENCER_3:
126 case WM9090_WRITE_SEQUENCER_4:
127 case WM9090_WRITE_SEQUENCER_5:
128 case WM9090_CHARGE_PUMP_1:
129 case WM9090_DC_SERVO_0:
130 case WM9090_DC_SERVO_1:
131 case WM9090_DC_SERVO_3:
132 case WM9090_DC_SERVO_READBACK_0:
133 case WM9090_DC_SERVO_READBACK_1:
134 case WM9090_DC_SERVO_READBACK_2:
135 case WM9090_ANALOGUE_HP_0:
136 case WM9090_AGC_CONTROL_0:
137 case WM9090_AGC_CONTROL_1:
138 case WM9090_AGC_CONTROL_2:
139 return true;
140
141 default:
142 return false;
143 }
144 }
145
146 static void wait_for_dc_servo(struct snd_soc_component *component)
147 {
148 unsigned int reg;
149 int count = 0;
150
151 dev_dbg(component->dev, "Waiting for DC servo...\n");
152 do {
153 count++;
154 msleep(1);
155 reg = snd_soc_component_read32(component, WM9090_DC_SERVO_READBACK_0);
156 dev_dbg(component->dev, "DC servo status: %x\n", reg);
157 } while ((reg & WM9090_DCS_CAL_COMPLETE_MASK)
158 != WM9090_DCS_CAL_COMPLETE_MASK && count < 1000);
159
160 if ((reg & WM9090_DCS_CAL_COMPLETE_MASK)
161 != WM9090_DCS_CAL_COMPLETE_MASK)
162 dev_err(component->dev, "Timed out waiting for DC Servo\n");
163 }
164
165 static const DECLARE_TLV_DB_RANGE(in_tlv,
166 0, 0, TLV_DB_SCALE_ITEM(-600, 0, 0),
167 1, 3, TLV_DB_SCALE_ITEM(-350, 350, 0),
168 4, 6, TLV_DB_SCALE_ITEM(600, 600, 0)
169 );
170 static const DECLARE_TLV_DB_RANGE(mix_tlv,
171 0, 2, TLV_DB_SCALE_ITEM(-1200, 300, 0),
172 3, 3, TLV_DB_SCALE_ITEM(0, 0, 0)
173 );
174 static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
175 static const DECLARE_TLV_DB_RANGE(spkboost_tlv,
176 0, 6, TLV_DB_SCALE_ITEM(0, 150, 0),
177 7, 7, TLV_DB_SCALE_ITEM(1200, 0, 0)
178 );
179
180 static const struct snd_kcontrol_new wm9090_controls[] = {
181 SOC_SINGLE_TLV("IN1A Volume", WM9090_IN1_LINE_INPUT_A_VOLUME, 0, 6, 0,
182 in_tlv),
183 SOC_SINGLE("IN1A Switch", WM9090_IN1_LINE_INPUT_A_VOLUME, 7, 1, 1),
184 SOC_SINGLE("IN1A ZC Switch", WM9090_IN1_LINE_INPUT_A_VOLUME, 6, 1, 0),
185
186 SOC_SINGLE_TLV("IN2A Volume", WM9090_IN2_LINE_INPUT_A_VOLUME, 0, 6, 0,
187 in_tlv),
188 SOC_SINGLE("IN2A Switch", WM9090_IN2_LINE_INPUT_A_VOLUME, 7, 1, 1),
189 SOC_SINGLE("IN2A ZC Switch", WM9090_IN2_LINE_INPUT_A_VOLUME, 6, 1, 0),
190
191 SOC_SINGLE("MIXOUTL Switch", WM9090_OUTPUT_MIXER3, 8, 1, 1),
192 SOC_SINGLE_TLV("MIXOUTL IN1A Volume", WM9090_OUTPUT_MIXER3, 6, 3, 1,
193 mix_tlv),
194 SOC_SINGLE_TLV("MIXOUTL IN2A Volume", WM9090_OUTPUT_MIXER3, 2, 3, 1,
195 mix_tlv),
196
197 SOC_SINGLE("MIXOUTR Switch", WM9090_OUTPUT_MIXER4, 8, 1, 1),
198 SOC_SINGLE_TLV("MIXOUTR IN1A Volume", WM9090_OUTPUT_MIXER4, 6, 3, 1,
199 mix_tlv),
200 SOC_SINGLE_TLV("MIXOUTR IN2A Volume", WM9090_OUTPUT_MIXER4, 2, 3, 1,
201 mix_tlv),
202
203 SOC_SINGLE("SPKMIX Switch", WM9090_SPKMIXL_ATTENUATION, 8, 1, 1),
204 SOC_SINGLE_TLV("SPKMIX IN1A Volume", WM9090_SPKMIXL_ATTENUATION, 6, 3, 1,
205 mix_tlv),
206 SOC_SINGLE_TLV("SPKMIX IN2A Volume", WM9090_SPKMIXL_ATTENUATION, 2, 3, 1,
207 mix_tlv),
208
209 SOC_DOUBLE_R_TLV("Headphone Volume", WM9090_LEFT_OUTPUT_VOLUME,
210 WM9090_RIGHT_OUTPUT_VOLUME, 0, 63, 0, out_tlv),
211 SOC_DOUBLE_R("Headphone Switch", WM9090_LEFT_OUTPUT_VOLUME,
212 WM9090_RIGHT_OUTPUT_VOLUME, 6, 1, 1),
213 SOC_DOUBLE_R("Headphone ZC Switch", WM9090_LEFT_OUTPUT_VOLUME,
214 WM9090_RIGHT_OUTPUT_VOLUME, 7, 1, 0),
215
216 SOC_SINGLE_TLV("Speaker Volume", WM9090_SPEAKER_VOLUME_LEFT, 0, 63, 0,
217 out_tlv),
218 SOC_SINGLE("Speaker Switch", WM9090_SPEAKER_VOLUME_LEFT, 6, 1, 1),
219 SOC_SINGLE("Speaker ZC Switch", WM9090_SPEAKER_VOLUME_LEFT, 7, 1, 0),
220 SOC_SINGLE_TLV("Speaker Boost Volume", WM9090_CLASSD3, 3, 7, 0, spkboost_tlv),
221 };
222
223 static const struct snd_kcontrol_new wm9090_in1_se_controls[] = {
224 SOC_SINGLE_TLV("IN1B Volume", WM9090_IN1_LINE_INPUT_B_VOLUME, 0, 6, 0,
225 in_tlv),
226 SOC_SINGLE("IN1B Switch", WM9090_IN1_LINE_INPUT_B_VOLUME, 7, 1, 1),
227 SOC_SINGLE("IN1B ZC Switch", WM9090_IN1_LINE_INPUT_B_VOLUME, 6, 1, 0),
228
229 SOC_SINGLE_TLV("SPKMIX IN1B Volume", WM9090_SPKMIXL_ATTENUATION, 4, 3, 1,
230 mix_tlv),
231 SOC_SINGLE_TLV("MIXOUTL IN1B Volume", WM9090_OUTPUT_MIXER3, 4, 3, 1,
232 mix_tlv),
233 SOC_SINGLE_TLV("MIXOUTR IN1B Volume", WM9090_OUTPUT_MIXER4, 4, 3, 1,
234 mix_tlv),
235 };
236
237 static const struct snd_kcontrol_new wm9090_in2_se_controls[] = {
238 SOC_SINGLE_TLV("IN2B Volume", WM9090_IN2_LINE_INPUT_B_VOLUME, 0, 6, 0,
239 in_tlv),
240 SOC_SINGLE("IN2B Switch", WM9090_IN2_LINE_INPUT_B_VOLUME, 7, 1, 1),
241 SOC_SINGLE("IN2B ZC Switch", WM9090_IN2_LINE_INPUT_B_VOLUME, 6, 1, 0),
242
243 SOC_SINGLE_TLV("SPKMIX IN2B Volume", WM9090_SPKMIXL_ATTENUATION, 0, 3, 1,
244 mix_tlv),
245 SOC_SINGLE_TLV("MIXOUTL IN2B Volume", WM9090_OUTPUT_MIXER3, 0, 3, 1,
246 mix_tlv),
247 SOC_SINGLE_TLV("MIXOUTR IN2B Volume", WM9090_OUTPUT_MIXER4, 0, 3, 1,
248 mix_tlv),
249 };
250
251 static int hp_ev(struct snd_soc_dapm_widget *w,
252 struct snd_kcontrol *kcontrol, int event)
253 {
254 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
255 unsigned int reg = snd_soc_component_read32(component, WM9090_ANALOGUE_HP_0);
256
257 switch (event) {
258 case SND_SOC_DAPM_POST_PMU:
259 snd_soc_component_update_bits(component, WM9090_CHARGE_PUMP_1,
260 WM9090_CP_ENA, WM9090_CP_ENA);
261
262 msleep(5);
263
264 snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_1,
265 WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA,
266 WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA);
267
268 reg |= WM9090_HPOUT1L_DLY | WM9090_HPOUT1R_DLY;
269 snd_soc_component_write(component, WM9090_ANALOGUE_HP_0, reg);
270
271 /* Start the DC servo. We don't currently use the
272 * ability to save the state since we don't have full
273 * control of the analogue paths and they can change
274 * DC offsets; see the WM8904 driver for an example of
275 * doing so.
276 */
277 snd_soc_component_write(component, WM9090_DC_SERVO_0,
278 WM9090_DCS_ENA_CHAN_0 |
279 WM9090_DCS_ENA_CHAN_1 |
280 WM9090_DCS_TRIG_STARTUP_1 |
281 WM9090_DCS_TRIG_STARTUP_0);
282 wait_for_dc_servo(component);
283
284 reg |= WM9090_HPOUT1R_OUTP | WM9090_HPOUT1R_RMV_SHORT |
285 WM9090_HPOUT1L_OUTP | WM9090_HPOUT1L_RMV_SHORT;
286 snd_soc_component_write(component, WM9090_ANALOGUE_HP_0, reg);
287 break;
288
289 case SND_SOC_DAPM_PRE_PMD:
290 reg &= ~(WM9090_HPOUT1L_RMV_SHORT |
291 WM9090_HPOUT1L_DLY |
292 WM9090_HPOUT1L_OUTP |
293 WM9090_HPOUT1R_RMV_SHORT |
294 WM9090_HPOUT1R_DLY |
295 WM9090_HPOUT1R_OUTP);
296
297 snd_soc_component_write(component, WM9090_ANALOGUE_HP_0, reg);
298
299 snd_soc_component_write(component, WM9090_DC_SERVO_0, 0);
300
301 snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_1,
302 WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA,
303 0);
304
305 snd_soc_component_update_bits(component, WM9090_CHARGE_PUMP_1,
306 WM9090_CP_ENA, 0);
307 break;
308 }
309
310 return 0;
311 }
312
313 static const struct snd_kcontrol_new spkmix[] = {
314 SOC_DAPM_SINGLE("IN1A Switch", WM9090_SPEAKER_MIXER, 6, 1, 0),
315 SOC_DAPM_SINGLE("IN1B Switch", WM9090_SPEAKER_MIXER, 4, 1, 0),
316 SOC_DAPM_SINGLE("IN2A Switch", WM9090_SPEAKER_MIXER, 2, 1, 0),
317 SOC_DAPM_SINGLE("IN2B Switch", WM9090_SPEAKER_MIXER, 0, 1, 0),
318 };
319
320 static const struct snd_kcontrol_new spkout[] = {
321 SOC_DAPM_SINGLE("Mixer Switch", WM9090_SPKOUT_MIXERS, 4, 1, 0),
322 };
323
324 static const struct snd_kcontrol_new mixoutl[] = {
325 SOC_DAPM_SINGLE("IN1A Switch", WM9090_OUTPUT_MIXER1, 6, 1, 0),
326 SOC_DAPM_SINGLE("IN1B Switch", WM9090_OUTPUT_MIXER1, 4, 1, 0),
327 SOC_DAPM_SINGLE("IN2A Switch", WM9090_OUTPUT_MIXER1, 2, 1, 0),
328 SOC_DAPM_SINGLE("IN2B Switch", WM9090_OUTPUT_MIXER1, 0, 1, 0),
329 };
330
331 static const struct snd_kcontrol_new mixoutr[] = {
332 SOC_DAPM_SINGLE("IN1A Switch", WM9090_OUTPUT_MIXER2, 6, 1, 0),
333 SOC_DAPM_SINGLE("IN1B Switch", WM9090_OUTPUT_MIXER2, 4, 1, 0),
334 SOC_DAPM_SINGLE("IN2A Switch", WM9090_OUTPUT_MIXER2, 2, 1, 0),
335 SOC_DAPM_SINGLE("IN2B Switch", WM9090_OUTPUT_MIXER2, 0, 1, 0),
336 };
337
338 static const struct snd_soc_dapm_widget wm9090_dapm_widgets[] = {
339 SND_SOC_DAPM_INPUT("IN1+"),
340 SND_SOC_DAPM_INPUT("IN1-"),
341 SND_SOC_DAPM_INPUT("IN2+"),
342 SND_SOC_DAPM_INPUT("IN2-"),
343
344 SND_SOC_DAPM_SUPPLY("OSC", WM9090_POWER_MANAGEMENT_1, 3, 0, NULL, 0),
345
346 SND_SOC_DAPM_PGA("IN1A PGA", WM9090_POWER_MANAGEMENT_2, 7, 0, NULL, 0),
347 SND_SOC_DAPM_PGA("IN1B PGA", WM9090_POWER_MANAGEMENT_2, 6, 0, NULL, 0),
348 SND_SOC_DAPM_PGA("IN2A PGA", WM9090_POWER_MANAGEMENT_2, 5, 0, NULL, 0),
349 SND_SOC_DAPM_PGA("IN2B PGA", WM9090_POWER_MANAGEMENT_2, 4, 0, NULL, 0),
350
351 SND_SOC_DAPM_MIXER("SPKMIX", WM9090_POWER_MANAGEMENT_3, 3, 0,
352 spkmix, ARRAY_SIZE(spkmix)),
353 SND_SOC_DAPM_MIXER("MIXOUTL", WM9090_POWER_MANAGEMENT_3, 5, 0,
354 mixoutl, ARRAY_SIZE(mixoutl)),
355 SND_SOC_DAPM_MIXER("MIXOUTR", WM9090_POWER_MANAGEMENT_3, 4, 0,
356 mixoutr, ARRAY_SIZE(mixoutr)),
357
358 SND_SOC_DAPM_PGA_E("HP PGA", SND_SOC_NOPM, 0, 0, NULL, 0,
359 hp_ev, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
360
361 SND_SOC_DAPM_PGA("SPKPGA", WM9090_POWER_MANAGEMENT_3, 8, 0, NULL, 0),
362 SND_SOC_DAPM_MIXER("SPKOUT", WM9090_POWER_MANAGEMENT_1, 12, 0,
363 spkout, ARRAY_SIZE(spkout)),
364
365 SND_SOC_DAPM_OUTPUT("HPR"),
366 SND_SOC_DAPM_OUTPUT("HPL"),
367 SND_SOC_DAPM_OUTPUT("Speaker"),
368 };
369
370 static const struct snd_soc_dapm_route audio_map[] = {
371 { "IN1A PGA", NULL, "IN1+" },
372 { "IN2A PGA", NULL, "IN2+" },
373
374 { "SPKMIX", "IN1A Switch", "IN1A PGA" },
375 { "SPKMIX", "IN2A Switch", "IN2A PGA" },
376
377 { "MIXOUTL", "IN1A Switch", "IN1A PGA" },
378 { "MIXOUTL", "IN2A Switch", "IN2A PGA" },
379
380 { "MIXOUTR", "IN1A Switch", "IN1A PGA" },
381 { "MIXOUTR", "IN2A Switch", "IN2A PGA" },
382
383 { "HP PGA", NULL, "OSC" },
384 { "HP PGA", NULL, "MIXOUTL" },
385 { "HP PGA", NULL, "MIXOUTR" },
386
387 { "HPL", NULL, "HP PGA" },
388 { "HPR", NULL, "HP PGA" },
389
390 { "SPKPGA", NULL, "OSC" },
391 { "SPKPGA", NULL, "SPKMIX" },
392
393 { "SPKOUT", "Mixer Switch", "SPKPGA" },
394
395 { "Speaker", NULL, "SPKOUT" },
396 };
397
398 static const struct snd_soc_dapm_route audio_map_in1_se[] = {
399 { "IN1B PGA", NULL, "IN1-" },
400
401 { "SPKMIX", "IN1B Switch", "IN1B PGA" },
402 { "MIXOUTL", "IN1B Switch", "IN1B PGA" },
403 { "MIXOUTR", "IN1B Switch", "IN1B PGA" },
404 };
405
406 static const struct snd_soc_dapm_route audio_map_in1_diff[] = {
407 { "IN1A PGA", NULL, "IN1-" },
408 };
409
410 static const struct snd_soc_dapm_route audio_map_in2_se[] = {
411 { "IN2B PGA", NULL, "IN2-" },
412
413 { "SPKMIX", "IN2B Switch", "IN2B PGA" },
414 { "MIXOUTL", "IN2B Switch", "IN2B PGA" },
415 { "MIXOUTR", "IN2B Switch", "IN2B PGA" },
416 };
417
418 static const struct snd_soc_dapm_route audio_map_in2_diff[] = {
419 { "IN2A PGA", NULL, "IN2-" },
420 };
421
422 static int wm9090_add_controls(struct snd_soc_component *component)
423 {
424 struct wm9090_priv *wm9090 = snd_soc_component_get_drvdata(component);
425 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
426 int i;
427
428 snd_soc_dapm_new_controls(dapm, wm9090_dapm_widgets,
429 ARRAY_SIZE(wm9090_dapm_widgets));
430
431 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
432
433 snd_soc_add_component_controls(component, wm9090_controls,
434 ARRAY_SIZE(wm9090_controls));
435
436 if (wm9090->pdata.lin1_diff) {
437 snd_soc_dapm_add_routes(dapm, audio_map_in1_diff,
438 ARRAY_SIZE(audio_map_in1_diff));
439 } else {
440 snd_soc_dapm_add_routes(dapm, audio_map_in1_se,
441 ARRAY_SIZE(audio_map_in1_se));
442 snd_soc_add_component_controls(component, wm9090_in1_se_controls,
443 ARRAY_SIZE(wm9090_in1_se_controls));
444 }
445
446 if (wm9090->pdata.lin2_diff) {
447 snd_soc_dapm_add_routes(dapm, audio_map_in2_diff,
448 ARRAY_SIZE(audio_map_in2_diff));
449 } else {
450 snd_soc_dapm_add_routes(dapm, audio_map_in2_se,
451 ARRAY_SIZE(audio_map_in2_se));
452 snd_soc_add_component_controls(component, wm9090_in2_se_controls,
453 ARRAY_SIZE(wm9090_in2_se_controls));
454 }
455
456 if (wm9090->pdata.agc_ena) {
457 for (i = 0; i < ARRAY_SIZE(wm9090->pdata.agc); i++)
458 snd_soc_component_write(component, WM9090_AGC_CONTROL_0 + i,
459 wm9090->pdata.agc[i]);
460 snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_3,
461 WM9090_AGC_ENA, WM9090_AGC_ENA);
462 } else {
463 snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_3,
464 WM9090_AGC_ENA, 0);
465 }
466
467 return 0;
468
469 }
470
471 /*
472 * The machine driver should call this from their set_bias_level; if there
473 * isn't one then this can just be set as the set_bias_level function.
474 */
475 static int wm9090_set_bias_level(struct snd_soc_component *component,
476 enum snd_soc_bias_level level)
477 {
478 struct wm9090_priv *wm9090 = snd_soc_component_get_drvdata(component);
479
480 switch (level) {
481 case SND_SOC_BIAS_ON:
482 break;
483
484 case SND_SOC_BIAS_PREPARE:
485 snd_soc_component_update_bits(component, WM9090_ANTIPOP2, WM9090_VMID_ENA,
486 WM9090_VMID_ENA);
487 snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_1,
488 WM9090_BIAS_ENA |
489 WM9090_VMID_RES_MASK,
490 WM9090_BIAS_ENA |
491 1 << WM9090_VMID_RES_SHIFT);
492 msleep(1); /* Probably an overestimate */
493 break;
494
495 case SND_SOC_BIAS_STANDBY:
496 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
497 /* Restore the register cache */
498 regcache_sync(wm9090->regmap);
499 }
500
501 /* We keep VMID off during standby since the combination of
502 * ground referenced outputs and class D speaker mean that
503 * latency is not an issue.
504 */
505 snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_1,
506 WM9090_BIAS_ENA | WM9090_VMID_RES_MASK, 0);
507 snd_soc_component_update_bits(component, WM9090_ANTIPOP2,
508 WM9090_VMID_ENA, 0);
509 break;
510
511 case SND_SOC_BIAS_OFF:
512 break;
513 }
514
515 return 0;
516 }
517
518 static int wm9090_probe(struct snd_soc_component *component)
519 {
520 /* Configure some defaults; they will be written out when we
521 * bring the bias up.
522 */
523 snd_soc_component_update_bits(component, WM9090_IN1_LINE_INPUT_A_VOLUME,
524 WM9090_IN1_VU | WM9090_IN1A_ZC,
525 WM9090_IN1_VU | WM9090_IN1A_ZC);
526 snd_soc_component_update_bits(component, WM9090_IN1_LINE_INPUT_B_VOLUME,
527 WM9090_IN1_VU | WM9090_IN1B_ZC,
528 WM9090_IN1_VU | WM9090_IN1B_ZC);
529 snd_soc_component_update_bits(component, WM9090_IN2_LINE_INPUT_A_VOLUME,
530 WM9090_IN2_VU | WM9090_IN2A_ZC,
531 WM9090_IN2_VU | WM9090_IN2A_ZC);
532 snd_soc_component_update_bits(component, WM9090_IN2_LINE_INPUT_B_VOLUME,
533 WM9090_IN2_VU | WM9090_IN2B_ZC,
534 WM9090_IN2_VU | WM9090_IN2B_ZC);
535 snd_soc_component_update_bits(component, WM9090_SPEAKER_VOLUME_LEFT,
536 WM9090_SPKOUT_VU | WM9090_SPKOUTL_ZC,
537 WM9090_SPKOUT_VU | WM9090_SPKOUTL_ZC);
538 snd_soc_component_update_bits(component, WM9090_LEFT_OUTPUT_VOLUME,
539 WM9090_HPOUT1_VU | WM9090_HPOUT1L_ZC,
540 WM9090_HPOUT1_VU | WM9090_HPOUT1L_ZC);
541 snd_soc_component_update_bits(component, WM9090_RIGHT_OUTPUT_VOLUME,
542 WM9090_HPOUT1_VU | WM9090_HPOUT1R_ZC,
543 WM9090_HPOUT1_VU | WM9090_HPOUT1R_ZC);
544
545 snd_soc_component_update_bits(component, WM9090_CLOCKING_1,
546 WM9090_TOCLK_ENA, WM9090_TOCLK_ENA);
547
548 wm9090_add_controls(component);
549
550 return 0;
551 }
552
553 static const struct snd_soc_component_driver soc_component_dev_wm9090 = {
554 .probe = wm9090_probe,
555 .set_bias_level = wm9090_set_bias_level,
556 .suspend_bias_off = 1,
557 .idle_bias_on = 1,
558 .use_pmdown_time = 1,
559 .endianness = 1,
560 .non_legacy_dai_naming = 1,
561 };
562
563 static const struct regmap_config wm9090_regmap = {
564 .reg_bits = 8,
565 .val_bits = 16,
566
567 .max_register = WM9090_MAX_REGISTER,
568 .volatile_reg = wm9090_volatile,
569 .readable_reg = wm9090_readable,
570
571 .cache_type = REGCACHE_RBTREE,
572 .reg_defaults = wm9090_reg_defaults,
573 .num_reg_defaults = ARRAY_SIZE(wm9090_reg_defaults),
574 };
575
576
577 static int wm9090_i2c_probe(struct i2c_client *i2c,
578 const struct i2c_device_id *id)
579 {
580 struct wm9090_priv *wm9090;
581 unsigned int reg;
582 int ret;
583
584 wm9090 = devm_kzalloc(&i2c->dev, sizeof(*wm9090), GFP_KERNEL);
585 if (!wm9090)
586 return -ENOMEM;
587
588 wm9090->regmap = devm_regmap_init_i2c(i2c, &wm9090_regmap);
589 if (IS_ERR(wm9090->regmap)) {
590 ret = PTR_ERR(wm9090->regmap);
591 dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret);
592 return ret;
593 }
594
595 ret = regmap_read(wm9090->regmap, WM9090_SOFTWARE_RESET, ®);
596 if (ret < 0)
597 return ret;
598
599 if (reg != 0x9093) {
600 dev_err(&i2c->dev, "Device is not a WM9090, ID=%x\n", reg);
601 return -ENODEV;
602 }
603
604 ret = regmap_write(wm9090->regmap, WM9090_SOFTWARE_RESET, 0);
605 if (ret < 0)
606 return ret;
607
608 if (i2c->dev.platform_data)
609 memcpy(&wm9090->pdata, i2c->dev.platform_data,
610 sizeof(wm9090->pdata));
611
612 i2c_set_clientdata(i2c, wm9090);
613
614 ret = devm_snd_soc_register_component(&i2c->dev,
615 &soc_component_dev_wm9090, NULL, 0);
616 if (ret != 0) {
617 dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
618 return ret;
619 }
620
621 return 0;
622 }
623
624 static const struct i2c_device_id wm9090_id[] = {
625 { "wm9090", 0 },
626 { "wm9093", 0 },
627 { }
628 };
629 MODULE_DEVICE_TABLE(i2c, wm9090_id);
630
631 static struct i2c_driver wm9090_i2c_driver = {
632 .driver = {
633 .name = "wm9090",
634 },
635 .probe = wm9090_i2c_probe,
636 .id_table = wm9090_id,
637 };
638
639 module_i2c_driver(wm9090_i2c_driver);
640
641 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
642 MODULE_DESCRIPTION("WM9090 ASoC driver");
643 MODULE_LICENSE("GPL");
644
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