1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3 * ALSA SoC WM9090 driver
4 *
5 * Copyright 2009-12 Wolfson Microelectronics
6 *
7 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
8 */
9
10 #include <linux/module.h>
11 #include <linux/errno.h>
12 #include <linux/device.h>
13 #include <linux/i2c.h>
14 #include <linux/delay.h>
15 #include <linux/regmap.h>
16 #include <linux/slab.h>
17 #include <sound/initval.h>
18 #include <sound/soc.h>
19 #include <sound/tlv.h>
20 #include <sound/wm9090.h>
21
22 #include "wm9090.h"
23
24 static const struct reg_default wm9090_reg_defaults[] = {
25 { 1, 0x0006 }, /* R1 - Power Management (1) */
26 { 2, 0x6000 }, /* R2 - Power Management (2) */
27 { 3, 0x0000 }, /* R3 - Power Management (3) */
28 { 6, 0x01C0 }, /* R6 - Clocking 1 */
29 { 22, 0x0003 }, /* R22 - IN1 Line Control */
30 { 23, 0x0003 }, /* R23 - IN2 Line Control */
31 { 24, 0x0083 }, /* R24 - IN1 Line Input A Volume */
32 { 25, 0x0083 }, /* R25 - IN1 Line Input B Volume */
33 { 26, 0x0083 }, /* R26 - IN2 Line Input A Volume */
34 { 27, 0x0083 }, /* R27 - IN2 Line Input B Volume */
35 { 28, 0x002D }, /* R28 - Left Output Volume */
36 { 29, 0x002D }, /* R29 - Right Output Volume */
37 { 34, 0x0100 }, /* R34 - SPKMIXL Attenuation */
38 { 35, 0x0010 }, /* R36 - SPKOUT Mixers */
39 { 37, 0x0140 }, /* R37 - ClassD3 */
40 { 38, 0x0039 }, /* R38 - Speaker Volume Left */
41 { 45, 0x0000 }, /* R45 - Output Mixer1 */
42 { 46, 0x0000 }, /* R46 - Output Mixer2 */
43 { 47, 0x0100 }, /* R47 - Output Mixer3 */
44 { 48, 0x0100 }, /* R48 - Output Mixer4 */
45 { 54, 0x0000 }, /* R54 - Speaker Mixer */
46 { 57, 0x000D }, /* R57 - AntiPOP2 */
47 { 70, 0x0000 }, /* R70 - Write Sequencer 0 */
48 { 71, 0x0000 }, /* R71 - Write Sequencer 1 */
49 { 72, 0x0000 }, /* R72 - Write Sequencer 2 */
50 { 73, 0x0000 }, /* R73 - Write Sequencer 3 */
51 { 74, 0x0000 }, /* R74 - Write Sequencer 4 */
52 { 75, 0x0000 }, /* R75 - Write Sequencer 5 */
53 { 76, 0x1F25 }, /* R76 - Charge Pump 1 */
54 { 85, 0x054A }, /* R85 - DC Servo 1 */
55 { 87, 0x0000 }, /* R87 - DC Servo 3 */
56 { 96, 0x0100 }, /* R96 - Analogue HP 0 */
57 { 98, 0x8640 }, /* R98 - AGC Control 0 */
58 { 99, 0xC000 }, /* R99 - AGC Control 1 */
59 { 100, 0x0200 }, /* R100 - AGC Control 2 */
60 };
61
62 /* This struct is used to save the context */
63 struct wm9090_priv {
64 struct wm9090_platform_data pdata;
65 struct regmap *regmap;
66 };
67
68 static bool wm9090_volatile(struct device *dev, unsigned int reg)
69 {
70 switch (reg) {
71 case WM9090_SOFTWARE_RESET:
72 case WM9090_DC_SERVO_0:
73 case WM9090_DC_SERVO_READBACK_0:
74 case WM9090_DC_SERVO_READBACK_1:
75 case WM9090_DC_SERVO_READBACK_2:
76 return true;
77
78 default:
79 return false;
80 }
81 }
82
83 static bool wm9090_readable(struct device *dev, unsigned int reg)
84 {
85 switch (reg) {
86 case WM9090_SOFTWARE_RESET:
87 case WM9090_POWER_MANAGEMENT_1:
88 case WM9090_POWER_MANAGEMENT_2:
89 case WM9090_POWER_MANAGEMENT_3:
90 case WM9090_CLOCKING_1:
91 case WM9090_IN1_LINE_CONTROL:
92 case WM9090_IN2_LINE_CONTROL:
93 case WM9090_IN1_LINE_INPUT_A_VOLUME:
94 case WM9090_IN1_LINE_INPUT_B_VOLUME:
95 case WM9090_IN2_LINE_INPUT_A_VOLUME:
96 case WM9090_IN2_LINE_INPUT_B_VOLUME:
97 case WM9090_LEFT_OUTPUT_VOLUME:
98 case WM9090_RIGHT_OUTPUT_VOLUME:
99 case WM9090_SPKMIXL_ATTENUATION:
100 case WM9090_SPKOUT_MIXERS:
101 case WM9090_CLASSD3:
102 case WM9090_SPEAKER_VOLUME_LEFT:
103 case WM9090_OUTPUT_MIXER1:
104 case WM9090_OUTPUT_MIXER2:
105 case WM9090_OUTPUT_MIXER3:
106 case WM9090_OUTPUT_MIXER4:
107 case WM9090_SPEAKER_MIXER:
108 case WM9090_ANTIPOP2:
109 case WM9090_WRITE_SEQUENCER_0:
110 case WM9090_WRITE_SEQUENCER_1:
111 case WM9090_WRITE_SEQUENCER_2:
112 case WM9090_WRITE_SEQUENCER_3:
113 case WM9090_WRITE_SEQUENCER_4:
114 case WM9090_WRITE_SEQUENCER_5:
115 case WM9090_CHARGE_PUMP_1:
116 case WM9090_DC_SERVO_0:
117 case WM9090_DC_SERVO_1:
118 case WM9090_DC_SERVO_3:
119 case WM9090_DC_SERVO_READBACK_0:
120 case WM9090_DC_SERVO_READBACK_1:
121 case WM9090_DC_SERVO_READBACK_2:
122 case WM9090_ANALOGUE_HP_0:
123 case WM9090_AGC_CONTROL_0:
124 case WM9090_AGC_CONTROL_1:
125 case WM9090_AGC_CONTROL_2:
126 return true;
127
128 default:
129 return false;
130 }
131 }
132
133 static void wait_for_dc_servo(struct snd_soc_component *component)
134 {
135 unsigned int reg;
136 int count = 0;
137
138 dev_dbg(component->dev, "Waiting for DC servo...\n");
139 do {
140 count++;
141 msleep(1);
142 reg = snd_soc_component_read(component, WM9090_DC_SERVO_READBACK_0);
143 dev_dbg(component->dev, "DC servo status: %x\n", reg);
144 } while ((reg & WM9090_DCS_CAL_COMPLETE_MASK)
145 != WM9090_DCS_CAL_COMPLETE_MASK && count < 1000);
146
147 if ((reg & WM9090_DCS_CAL_COMPLETE_MASK)
148 != WM9090_DCS_CAL_COMPLETE_MASK)
149 dev_err(component->dev, "Timed out waiting for DC Servo\n");
150 }
151
152 static const DECLARE_TLV_DB_RANGE(in_tlv,
153 0, 0, TLV_DB_SCALE_ITEM(-600, 0, 0),
154 1, 3, TLV_DB_SCALE_ITEM(-350, 350, 0),
155 4, 6, TLV_DB_SCALE_ITEM(600, 600, 0)
156 );
157 static const DECLARE_TLV_DB_RANGE(mix_tlv,
158 0, 2, TLV_DB_SCALE_ITEM(-1200, 300, 0),
159 3, 3, TLV_DB_SCALE_ITEM(0, 0, 0)
160 );
161 static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
162 static const DECLARE_TLV_DB_RANGE(spkboost_tlv,
163 0, 6, TLV_DB_SCALE_ITEM(0, 150, 0),
164 7, 7, TLV_DB_SCALE_ITEM(1200, 0, 0)
165 );
166
167 static const struct snd_kcontrol_new wm9090_controls[] = {
168 SOC_SINGLE_TLV("IN1A Volume", WM9090_IN1_LINE_INPUT_A_VOLUME, 0, 6, 0,
169 in_tlv),
170 SOC_SINGLE("IN1A Switch", WM9090_IN1_LINE_INPUT_A_VOLUME, 7, 1, 1),
171 SOC_SINGLE("IN1A ZC Switch", WM9090_IN1_LINE_INPUT_A_VOLUME, 6, 1, 0),
172
173 SOC_SINGLE_TLV("IN2A Volume", WM9090_IN2_LINE_INPUT_A_VOLUME, 0, 6, 0,
174 in_tlv),
175 SOC_SINGLE("IN2A Switch", WM9090_IN2_LINE_INPUT_A_VOLUME, 7, 1, 1),
176 SOC_SINGLE("IN2A ZC Switch", WM9090_IN2_LINE_INPUT_A_VOLUME, 6, 1, 0),
177
178 SOC_SINGLE("MIXOUTL Switch", WM9090_OUTPUT_MIXER3, 8, 1, 1),
179 SOC_SINGLE_TLV("MIXOUTL IN1A Volume", WM9090_OUTPUT_MIXER3, 6, 3, 1,
180 mix_tlv),
181 SOC_SINGLE_TLV("MIXOUTL IN2A Volume", WM9090_OUTPUT_MIXER3, 2, 3, 1,
182 mix_tlv),
183
184 SOC_SINGLE("MIXOUTR Switch", WM9090_OUTPUT_MIXER4, 8, 1, 1),
185 SOC_SINGLE_TLV("MIXOUTR IN1A Volume", WM9090_OUTPUT_MIXER4, 6, 3, 1,
186 mix_tlv),
187 SOC_SINGLE_TLV("MIXOUTR IN2A Volume", WM9090_OUTPUT_MIXER4, 2, 3, 1,
188 mix_tlv),
189
190 SOC_SINGLE("SPKMIX Switch", WM9090_SPKMIXL_ATTENUATION, 8, 1, 1),
191 SOC_SINGLE_TLV("SPKMIX IN1A Volume", WM9090_SPKMIXL_ATTENUATION, 6, 3, 1,
192 mix_tlv),
193 SOC_SINGLE_TLV("SPKMIX IN2A Volume", WM9090_SPKMIXL_ATTENUATION, 2, 3, 1,
194 mix_tlv),
195
196 SOC_DOUBLE_R_TLV("Headphone Volume", WM9090_LEFT_OUTPUT_VOLUME,
197 WM9090_RIGHT_OUTPUT_VOLUME, 0, 63, 0, out_tlv),
198 SOC_DOUBLE_R("Headphone Switch", WM9090_LEFT_OUTPUT_VOLUME,
199 WM9090_RIGHT_OUTPUT_VOLUME, 6, 1, 1),
200 SOC_DOUBLE_R("Headphone ZC Switch", WM9090_LEFT_OUTPUT_VOLUME,
201 WM9090_RIGHT_OUTPUT_VOLUME, 7, 1, 0),
202
203 SOC_SINGLE_TLV("Speaker Volume", WM9090_SPEAKER_VOLUME_LEFT, 0, 63, 0,
204 out_tlv),
205 SOC_SINGLE("Speaker Switch", WM9090_SPEAKER_VOLUME_LEFT, 6, 1, 1),
206 SOC_SINGLE("Speaker ZC Switch", WM9090_SPEAKER_VOLUME_LEFT, 7, 1, 0),
207 SOC_SINGLE_TLV("Speaker Boost Volume", WM9090_CLASSD3, 3, 7, 0, spkboost_tlv),
208 };
209
210 static const struct snd_kcontrol_new wm9090_in1_se_controls[] = {
211 SOC_SINGLE_TLV("IN1B Volume", WM9090_IN1_LINE_INPUT_B_VOLUME, 0, 6, 0,
212 in_tlv),
213 SOC_SINGLE("IN1B Switch", WM9090_IN1_LINE_INPUT_B_VOLUME, 7, 1, 1),
214 SOC_SINGLE("IN1B ZC Switch", WM9090_IN1_LINE_INPUT_B_VOLUME, 6, 1, 0),
215
216 SOC_SINGLE_TLV("SPKMIX IN1B Volume", WM9090_SPKMIXL_ATTENUATION, 4, 3, 1,
217 mix_tlv),
218 SOC_SINGLE_TLV("MIXOUTL IN1B Volume", WM9090_OUTPUT_MIXER3, 4, 3, 1,
219 mix_tlv),
220 SOC_SINGLE_TLV("MIXOUTR IN1B Volume", WM9090_OUTPUT_MIXER4, 4, 3, 1,
221 mix_tlv),
222 };
223
224 static const struct snd_kcontrol_new wm9090_in2_se_controls[] = {
225 SOC_SINGLE_TLV("IN2B Volume", WM9090_IN2_LINE_INPUT_B_VOLUME, 0, 6, 0,
226 in_tlv),
227 SOC_SINGLE("IN2B Switch", WM9090_IN2_LINE_INPUT_B_VOLUME, 7, 1, 1),
228 SOC_SINGLE("IN2B ZC Switch", WM9090_IN2_LINE_INPUT_B_VOLUME, 6, 1, 0),
229
230 SOC_SINGLE_TLV("SPKMIX IN2B Volume", WM9090_SPKMIXL_ATTENUATION, 0, 3, 1,
231 mix_tlv),
232 SOC_SINGLE_TLV("MIXOUTL IN2B Volume", WM9090_OUTPUT_MIXER3, 0, 3, 1,
233 mix_tlv),
234 SOC_SINGLE_TLV("MIXOUTR IN2B Volume", WM9090_OUTPUT_MIXER4, 0, 3, 1,
235 mix_tlv),
236 };
237
238 static int hp_ev(struct snd_soc_dapm_widget *w,
239 struct snd_kcontrol *kcontrol, int event)
240 {
241 struct snd_soc_component *component = snd_soc_dapm_to_component(w->dapm);
242 unsigned int reg = snd_soc_component_read(component, WM9090_ANALOGUE_HP_0);
243
244 switch (event) {
245 case SND_SOC_DAPM_POST_PMU:
246 snd_soc_component_update_bits(component, WM9090_CHARGE_PUMP_1,
247 WM9090_CP_ENA, WM9090_CP_ENA);
248
249 msleep(5);
250
251 snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_1,
252 WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA,
253 WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA);
254
255 reg |= WM9090_HPOUT1L_DLY | WM9090_HPOUT1R_DLY;
256 snd_soc_component_write(component, WM9090_ANALOGUE_HP_0, reg);
257
258 /* Start the DC servo. We don't currently use the
259 * ability to save the state since we don't have full
260 * control of the analogue paths and they can change
261 * DC offsets; see the WM8904 driver for an example of
262 * doing so.
263 */
264 snd_soc_component_write(component, WM9090_DC_SERVO_0,
265 WM9090_DCS_ENA_CHAN_0 |
266 WM9090_DCS_ENA_CHAN_1 |
267 WM9090_DCS_TRIG_STARTUP_1 |
268 WM9090_DCS_TRIG_STARTUP_0);
269 wait_for_dc_servo(component);
270
271 reg |= WM9090_HPOUT1R_OUTP | WM9090_HPOUT1R_RMV_SHORT |
272 WM9090_HPOUT1L_OUTP | WM9090_HPOUT1L_RMV_SHORT;
273 snd_soc_component_write(component, WM9090_ANALOGUE_HP_0, reg);
274 break;
275
276 case SND_SOC_DAPM_PRE_PMD:
277 reg &= ~(WM9090_HPOUT1L_RMV_SHORT |
278 WM9090_HPOUT1L_DLY |
279 WM9090_HPOUT1L_OUTP |
280 WM9090_HPOUT1R_RMV_SHORT |
281 WM9090_HPOUT1R_DLY |
282 WM9090_HPOUT1R_OUTP);
283
284 snd_soc_component_write(component, WM9090_ANALOGUE_HP_0, reg);
285
286 snd_soc_component_write(component, WM9090_DC_SERVO_0, 0);
287
288 snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_1,
289 WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA,
290 0);
291
292 snd_soc_component_update_bits(component, WM9090_CHARGE_PUMP_1,
293 WM9090_CP_ENA, 0);
294 break;
295 }
296
297 return 0;
298 }
299
300 static const struct snd_kcontrol_new spkmix[] = {
301 SOC_DAPM_SINGLE("IN1A Switch", WM9090_SPEAKER_MIXER, 6, 1, 0),
302 SOC_DAPM_SINGLE("IN1B Switch", WM9090_SPEAKER_MIXER, 4, 1, 0),
303 SOC_DAPM_SINGLE("IN2A Switch", WM9090_SPEAKER_MIXER, 2, 1, 0),
304 SOC_DAPM_SINGLE("IN2B Switch", WM9090_SPEAKER_MIXER, 0, 1, 0),
305 };
306
307 static const struct snd_kcontrol_new spkout[] = {
308 SOC_DAPM_SINGLE("Mixer Switch", WM9090_SPKOUT_MIXERS, 4, 1, 0),
309 };
310
311 static const struct snd_kcontrol_new mixoutl[] = {
312 SOC_DAPM_SINGLE("IN1A Switch", WM9090_OUTPUT_MIXER1, 6, 1, 0),
313 SOC_DAPM_SINGLE("IN1B Switch", WM9090_OUTPUT_MIXER1, 4, 1, 0),
314 SOC_DAPM_SINGLE("IN2A Switch", WM9090_OUTPUT_MIXER1, 2, 1, 0),
315 SOC_DAPM_SINGLE("IN2B Switch", WM9090_OUTPUT_MIXER1, 0, 1, 0),
316 };
317
318 static const struct snd_kcontrol_new mixoutr[] = {
319 SOC_DAPM_SINGLE("IN1A Switch", WM9090_OUTPUT_MIXER2, 6, 1, 0),
320 SOC_DAPM_SINGLE("IN1B Switch", WM9090_OUTPUT_MIXER2, 4, 1, 0),
321 SOC_DAPM_SINGLE("IN2A Switch", WM9090_OUTPUT_MIXER2, 2, 1, 0),
322 SOC_DAPM_SINGLE("IN2B Switch", WM9090_OUTPUT_MIXER2, 0, 1, 0),
323 };
324
325 static const struct snd_soc_dapm_widget wm9090_dapm_widgets[] = {
326 SND_SOC_DAPM_INPUT("IN1+"),
327 SND_SOC_DAPM_INPUT("IN1-"),
328 SND_SOC_DAPM_INPUT("IN2+"),
329 SND_SOC_DAPM_INPUT("IN2-"),
330
331 SND_SOC_DAPM_SUPPLY("OSC", WM9090_POWER_MANAGEMENT_1, 3, 0, NULL, 0),
332
333 SND_SOC_DAPM_PGA("IN1A PGA", WM9090_POWER_MANAGEMENT_2, 7, 0, NULL, 0),
334 SND_SOC_DAPM_PGA("IN1B PGA", WM9090_POWER_MANAGEMENT_2, 6, 0, NULL, 0),
335 SND_SOC_DAPM_PGA("IN2A PGA", WM9090_POWER_MANAGEMENT_2, 5, 0, NULL, 0),
336 SND_SOC_DAPM_PGA("IN2B PGA", WM9090_POWER_MANAGEMENT_2, 4, 0, NULL, 0),
337
338 SND_SOC_DAPM_MIXER("SPKMIX", WM9090_POWER_MANAGEMENT_3, 3, 0,
339 spkmix, ARRAY_SIZE(spkmix)),
340 SND_SOC_DAPM_MIXER("MIXOUTL", WM9090_POWER_MANAGEMENT_3, 5, 0,
341 mixoutl, ARRAY_SIZE(mixoutl)),
342 SND_SOC_DAPM_MIXER("MIXOUTR", WM9090_POWER_MANAGEMENT_3, 4, 0,
343 mixoutr, ARRAY_SIZE(mixoutr)),
344
345 SND_SOC_DAPM_PGA_E("HP PGA", SND_SOC_NOPM, 0, 0, NULL, 0,
346 hp_ev, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
347
348 SND_SOC_DAPM_PGA("SPKPGA", WM9090_POWER_MANAGEMENT_3, 8, 0, NULL, 0),
349 SND_SOC_DAPM_MIXER("SPKOUT", WM9090_POWER_MANAGEMENT_1, 12, 0,
350 spkout, ARRAY_SIZE(spkout)),
351
352 SND_SOC_DAPM_OUTPUT("HPR"),
353 SND_SOC_DAPM_OUTPUT("HPL"),
354 SND_SOC_DAPM_OUTPUT("Speaker"),
355 };
356
357 static const struct snd_soc_dapm_route audio_map[] = {
358 { "IN1A PGA", NULL, "IN1+" },
359 { "IN2A PGA", NULL, "IN2+" },
360
361 { "SPKMIX", "IN1A Switch", "IN1A PGA" },
362 { "SPKMIX", "IN2A Switch", "IN2A PGA" },
363
364 { "MIXOUTL", "IN1A Switch", "IN1A PGA" },
365 { "MIXOUTL", "IN2A Switch", "IN2A PGA" },
366
367 { "MIXOUTR", "IN1A Switch", "IN1A PGA" },
368 { "MIXOUTR", "IN2A Switch", "IN2A PGA" },
369
370 { "HP PGA", NULL, "OSC" },
371 { "HP PGA", NULL, "MIXOUTL" },
372 { "HP PGA", NULL, "MIXOUTR" },
373
374 { "HPL", NULL, "HP PGA" },
375 { "HPR", NULL, "HP PGA" },
376
377 { "SPKPGA", NULL, "OSC" },
378 { "SPKPGA", NULL, "SPKMIX" },
379
380 { "SPKOUT", "Mixer Switch", "SPKPGA" },
381
382 { "Speaker", NULL, "SPKOUT" },
383 };
384
385 static const struct snd_soc_dapm_route audio_map_in1_se[] = {
386 { "IN1B PGA", NULL, "IN1-" },
387
388 { "SPKMIX", "IN1B Switch", "IN1B PGA" },
389 { "MIXOUTL", "IN1B Switch", "IN1B PGA" },
390 { "MIXOUTR", "IN1B Switch", "IN1B PGA" },
391 };
392
393 static const struct snd_soc_dapm_route audio_map_in1_diff[] = {
394 { "IN1A PGA", NULL, "IN1-" },
395 };
396
397 static const struct snd_soc_dapm_route audio_map_in2_se[] = {
398 { "IN2B PGA", NULL, "IN2-" },
399
400 { "SPKMIX", "IN2B Switch", "IN2B PGA" },
401 { "MIXOUTL", "IN2B Switch", "IN2B PGA" },
402 { "MIXOUTR", "IN2B Switch", "IN2B PGA" },
403 };
404
405 static const struct snd_soc_dapm_route audio_map_in2_diff[] = {
406 { "IN2A PGA", NULL, "IN2-" },
407 };
408
409 static int wm9090_add_controls(struct snd_soc_component *component)
410 {
411 struct wm9090_priv *wm9090 = snd_soc_component_get_drvdata(component);
412 struct snd_soc_dapm_context *dapm = snd_soc_component_get_dapm(component);
413 int i;
414
415 snd_soc_dapm_new_controls(dapm, wm9090_dapm_widgets,
416 ARRAY_SIZE(wm9090_dapm_widgets));
417
418 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
419
420 snd_soc_add_component_controls(component, wm9090_controls,
421 ARRAY_SIZE(wm9090_controls));
422
423 if (wm9090->pdata.lin1_diff) {
424 snd_soc_dapm_add_routes(dapm, audio_map_in1_diff,
425 ARRAY_SIZE(audio_map_in1_diff));
426 } else {
427 snd_soc_dapm_add_routes(dapm, audio_map_in1_se,
428 ARRAY_SIZE(audio_map_in1_se));
429 snd_soc_add_component_controls(component, wm9090_in1_se_controls,
430 ARRAY_SIZE(wm9090_in1_se_controls));
431 }
432
433 if (wm9090->pdata.lin2_diff) {
434 snd_soc_dapm_add_routes(dapm, audio_map_in2_diff,
435 ARRAY_SIZE(audio_map_in2_diff));
436 } else {
437 snd_soc_dapm_add_routes(dapm, audio_map_in2_se,
438 ARRAY_SIZE(audio_map_in2_se));
439 snd_soc_add_component_controls(component, wm9090_in2_se_controls,
440 ARRAY_SIZE(wm9090_in2_se_controls));
441 }
442
443 if (wm9090->pdata.agc_ena) {
444 for (i = 0; i < ARRAY_SIZE(wm9090->pdata.agc); i++)
445 snd_soc_component_write(component, WM9090_AGC_CONTROL_0 + i,
446 wm9090->pdata.agc[i]);
447 snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_3,
448 WM9090_AGC_ENA, WM9090_AGC_ENA);
449 } else {
450 snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_3,
451 WM9090_AGC_ENA, 0);
452 }
453
454 return 0;
455
456 }
457
458 /*
459 * The machine driver should call this from their set_bias_level; if there
460 * isn't one then this can just be set as the set_bias_level function.
461 */
462 static int wm9090_set_bias_level(struct snd_soc_component *component,
463 enum snd_soc_bias_level level)
464 {
465 struct wm9090_priv *wm9090 = snd_soc_component_get_drvdata(component);
466
467 switch (level) {
468 case SND_SOC_BIAS_ON:
469 break;
470
471 case SND_SOC_BIAS_PREPARE:
472 snd_soc_component_update_bits(component, WM9090_ANTIPOP2, WM9090_VMID_ENA,
473 WM9090_VMID_ENA);
474 snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_1,
475 WM9090_BIAS_ENA |
476 WM9090_VMID_RES_MASK,
477 WM9090_BIAS_ENA |
478 1 << WM9090_VMID_RES_SHIFT);
479 msleep(1); /* Probably an overestimate */
480 break;
481
482 case SND_SOC_BIAS_STANDBY:
483 if (snd_soc_component_get_bias_level(component) == SND_SOC_BIAS_OFF) {
484 /* Restore the register cache */
485 regcache_sync(wm9090->regmap);
486 }
487
488 /* We keep VMID off during standby since the combination of
489 * ground referenced outputs and class D speaker mean that
490 * latency is not an issue.
491 */
492 snd_soc_component_update_bits(component, WM9090_POWER_MANAGEMENT_1,
493 WM9090_BIAS_ENA | WM9090_VMID_RES_MASK, 0);
494 snd_soc_component_update_bits(component, WM9090_ANTIPOP2,
495 WM9090_VMID_ENA, 0);
496 break;
497
498 case SND_SOC_BIAS_OFF:
499 break;
500 }
501
502 return 0;
503 }
504
505 static int wm9090_probe(struct snd_soc_component *component)
506 {
507 /* Configure some defaults; they will be written out when we
508 * bring the bias up.
509 */
510 snd_soc_component_update_bits(component, WM9090_IN1_LINE_INPUT_A_VOLUME,
511 WM9090_IN1_VU | WM9090_IN1A_ZC,
512 WM9090_IN1_VU | WM9090_IN1A_ZC);
513 snd_soc_component_update_bits(component, WM9090_IN1_LINE_INPUT_B_VOLUME,
514 WM9090_IN1_VU | WM9090_IN1B_ZC,
515 WM9090_IN1_VU | WM9090_IN1B_ZC);
516 snd_soc_component_update_bits(component, WM9090_IN2_LINE_INPUT_A_VOLUME,
517 WM9090_IN2_VU | WM9090_IN2A_ZC,
518 WM9090_IN2_VU | WM9090_IN2A_ZC);
519 snd_soc_component_update_bits(component, WM9090_IN2_LINE_INPUT_B_VOLUME,
520 WM9090_IN2_VU | WM9090_IN2B_ZC,
521 WM9090_IN2_VU | WM9090_IN2B_ZC);
522 snd_soc_component_update_bits(component, WM9090_SPEAKER_VOLUME_LEFT,
523 WM9090_SPKOUT_VU | WM9090_SPKOUTL_ZC,
524 WM9090_SPKOUT_VU | WM9090_SPKOUTL_ZC);
525 snd_soc_component_update_bits(component, WM9090_LEFT_OUTPUT_VOLUME,
526 WM9090_HPOUT1_VU | WM9090_HPOUT1L_ZC,
527 WM9090_HPOUT1_VU | WM9090_HPOUT1L_ZC);
528 snd_soc_component_update_bits(component, WM9090_RIGHT_OUTPUT_VOLUME,
529 WM9090_HPOUT1_VU | WM9090_HPOUT1R_ZC,
530 WM9090_HPOUT1_VU | WM9090_HPOUT1R_ZC);
531
532 snd_soc_component_update_bits(component, WM9090_CLOCKING_1,
533 WM9090_TOCLK_ENA, WM9090_TOCLK_ENA);
534
535 wm9090_add_controls(component);
536
537 return 0;
538 }
539
540 static const struct snd_soc_component_driver soc_component_dev_wm9090 = {
541 .probe = wm9090_probe,
542 .set_bias_level = wm9090_set_bias_level,
543 .suspend_bias_off = 1,
544 .idle_bias_on = 1,
545 .use_pmdown_time = 1,
546 };
547
548 static const struct regmap_config wm9090_regmap = {
549 .reg_bits = 8,
550 .val_bits = 16,
551
552 .max_register = WM9090_MAX_REGISTER,
553 .volatile_reg = wm9090_volatile,
554 .readable_reg = wm9090_readable,
555
556 .cache_type = REGCACHE_MAPLE,
557 .reg_defaults = wm9090_reg_defaults,
558 .num_reg_defaults = ARRAY_SIZE(wm9090_reg_defaults),
559 };
560
561
562 static int wm9090_i2c_probe(struct i2c_client *i2c)
563 {
564 struct wm9090_priv *wm9090;
565 unsigned int reg;
566 int ret;
567
568 wm9090 = devm_kzalloc(&i2c->dev, sizeof(*wm9090), GFP_KERNEL);
569 if (!wm9090)
570 return -ENOMEM;
571
572 wm9090->regmap = devm_regmap_init_i2c(i2c, &wm9090_regmap);
573 if (IS_ERR(wm9090->regmap)) {
574 ret = PTR_ERR(wm9090->regmap);
575 dev_err(&i2c->dev, "Failed to allocate regmap: %d\n", ret);
576 return ret;
577 }
578
579 ret = regmap_read(wm9090->regmap, WM9090_SOFTWARE_RESET, ®);
580 if (ret < 0)
581 return ret;
582
583 if (reg != 0x9093) {
584 dev_err(&i2c->dev, "Device is not a WM9090, ID=%x\n", reg);
585 return -ENODEV;
586 }
587
588 ret = regmap_write(wm9090->regmap, WM9090_SOFTWARE_RESET, 0);
589 if (ret < 0)
590 return ret;
591
592 if (i2c->dev.platform_data)
593 memcpy(&wm9090->pdata, i2c->dev.platform_data,
594 sizeof(wm9090->pdata));
595
596 i2c_set_clientdata(i2c, wm9090);
597
598 ret = devm_snd_soc_register_component(&i2c->dev,
599 &soc_component_dev_wm9090, NULL, 0);
600 if (ret != 0) {
601 dev_err(&i2c->dev, "Failed to register CODEC: %d\n", ret);
602 return ret;
603 }
604
605 return 0;
606 }
607
608 static const struct i2c_device_id wm9090_id[] = {
609 { "wm9090" },
610 { "wm9093" },
611 { }
612 };
613 MODULE_DEVICE_TABLE(i2c, wm9090_id);
614
615 static struct i2c_driver wm9090_i2c_driver = {
616 .driver = {
617 .name = "wm9090",
618 },
619 .probe = wm9090_i2c_probe,
620 .id_table = wm9090_id,
621 };
622
623 module_i2c_driver(wm9090_i2c_driver);
624
625 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
626 MODULE_DESCRIPTION("WM9090 ASoC driver");
627 MODULE_LICENSE("GPL");
628
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.