2 * ALSA SoC WM9090 driver
4 * Copyright 2009, 2010 Wolfson Microelectronics
6 * Author: Mark Brown <broonie@opensource.wolfsonmicro.com>
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.
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.
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
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/slab.h>
29 #include <sound/initval.h>
30 #include <sound/soc.h>
31 #include <sound/soc-dapm.h>
32 #include <sound/tlv.h>
33 #include <sound/wm9090.h>
37 static const u16 wm9090_reg_defaults[] = {
38 0x9093, /* R0 - Software Reset */
39 0x0006, /* R1 - Power Management (1) */
40 0x6000, /* R2 - Power Management (2) */
41 0x0000, /* R3 - Power Management (3) */
44 0x01C0, /* R6 - Clocking 1 */
60 0x0003, /* R22 - IN1 Line Control */
61 0x0003, /* R23 - IN2 Line Control */
62 0x0083, /* R24 - IN1 Line Input A Volume */
63 0x0083, /* R25 - IN1 Line Input B Volume */
64 0x0083, /* R26 - IN2 Line Input A Volume */
65 0x0083, /* R27 - IN2 Line Input B Volume */
66 0x002D, /* R28 - Left Output Volume */
67 0x002D, /* R29 - Right Output Volume */
72 0x0100, /* R34 - SPKMIXL Attenuation */
74 0x0010, /* R36 - SPKOUT Mixers */
75 0x0140, /* R37 - ClassD3 */
76 0x0039, /* R38 - Speaker Volume Left */
83 0x0000, /* R45 - Output Mixer1 */
84 0x0000, /* R46 - Output Mixer2 */
85 0x0100, /* R47 - Output Mixer3 */
86 0x0100, /* R48 - Output Mixer4 */
92 0x0000, /* R54 - Speaker Mixer */
95 0x000D, /* R57 - AntiPOP2 */
108 0x0000, /* R70 - Write Sequencer 0 */
109 0x0000, /* R71 - Write Sequencer 1 */
110 0x0000, /* R72 - Write Sequencer 2 */
111 0x0000, /* R73 - Write Sequencer 3 */
112 0x0000, /* R74 - Write Sequencer 4 */
113 0x0000, /* R75 - Write Sequencer 5 */
114 0x1F25, /* R76 - Charge Pump 1 */
122 0x0000, /* R84 - DC Servo 0 */
123 0x054A, /* R85 - DC Servo 1 */
125 0x0000, /* R87 - DC Servo 3 */
126 0x0000, /* R88 - DC Servo Readback 0 */
127 0x0000, /* R89 - DC Servo Readback 1 */
128 0x0000, /* R90 - DC Servo Readback 2 */
134 0x0100, /* R96 - Analogue HP 0 */
136 0x8640, /* R98 - AGC Control 0 */
137 0xC000, /* R99 - AGC Control 1 */
138 0x0200, /* R100 - AGC Control 2 */
141 /* This struct is used to save the context */
144 struct wm9090_platform_data pdata;
148 static int wm9090_volatile(unsigned int reg)
151 case WM9090_SOFTWARE_RESET:
152 case WM9090_DC_SERVO_0:
153 case WM9090_DC_SERVO_READBACK_0:
154 case WM9090_DC_SERVO_READBACK_1:
155 case WM9090_DC_SERVO_READBACK_2:
163 static void wait_for_dc_servo(struct snd_soc_codec *codec)
168 dev_dbg(codec->dev, "Waiting for DC servo...\n");
172 reg = snd_soc_read(codec, WM9090_DC_SERVO_READBACK_0);
173 dev_dbg(codec->dev, "DC servo status: %x\n", reg);
174 } while ((reg & WM9090_DCS_CAL_COMPLETE_MASK)
175 != WM9090_DCS_CAL_COMPLETE_MASK && count < 1000);
177 if ((reg & WM9090_DCS_CAL_COMPLETE_MASK)
178 != WM9090_DCS_CAL_COMPLETE_MASK)
179 dev_err(codec->dev, "Timed out waiting for DC Servo\n");
182 static const unsigned int in_tlv[] = {
183 TLV_DB_RANGE_HEAD(6),
184 0, 0, TLV_DB_SCALE_ITEM(-600, 0, 0),
185 1, 3, TLV_DB_SCALE_ITEM(-350, 350, 0),
186 4, 6, TLV_DB_SCALE_ITEM(600, 600, 0),
188 static const unsigned int mix_tlv[] = {
189 TLV_DB_RANGE_HEAD(4),
190 0, 2, TLV_DB_SCALE_ITEM(-1200, 300, 0),
191 3, 3, TLV_DB_SCALE_ITEM(0, 0, 0),
193 static const DECLARE_TLV_DB_SCALE(out_tlv, -5700, 100, 0);
194 static const unsigned int spkboost_tlv[] = {
195 TLV_DB_RANGE_HEAD(7),
196 0, 6, TLV_DB_SCALE_ITEM(0, 150, 0),
197 7, 7, TLV_DB_SCALE_ITEM(1200, 0, 0),
200 static const struct snd_kcontrol_new wm9090_controls[] = {
201 SOC_SINGLE_TLV("IN1A Volume", WM9090_IN1_LINE_INPUT_A_VOLUME, 0, 6, 0,
203 SOC_SINGLE("IN1A Switch", WM9090_IN1_LINE_INPUT_A_VOLUME, 7, 1, 1),
204 SOC_SINGLE("IN1A ZC Switch", WM9090_IN1_LINE_INPUT_A_VOLUME, 6, 1, 0),
206 SOC_SINGLE_TLV("IN2A Volume", WM9090_IN2_LINE_INPUT_A_VOLUME, 0, 6, 0,
208 SOC_SINGLE("IN2A Switch", WM9090_IN2_LINE_INPUT_A_VOLUME, 7, 1, 1),
209 SOC_SINGLE("IN2A ZC Switch", WM9090_IN2_LINE_INPUT_A_VOLUME, 6, 1, 0),
211 SOC_SINGLE("MIXOUTL Switch", WM9090_OUTPUT_MIXER3, 8, 1, 1),
212 SOC_SINGLE_TLV("MIXOUTL IN1A Volume", WM9090_OUTPUT_MIXER3, 6, 3, 1,
214 SOC_SINGLE_TLV("MIXOUTL IN2A Volume", WM9090_OUTPUT_MIXER3, 2, 3, 1,
217 SOC_SINGLE("MIXOUTR Switch", WM9090_OUTPUT_MIXER4, 8, 1, 1),
218 SOC_SINGLE_TLV("MIXOUTR IN1A Volume", WM9090_OUTPUT_MIXER4, 6, 3, 1,
220 SOC_SINGLE_TLV("MIXOUTR IN2A Volume", WM9090_OUTPUT_MIXER4, 2, 3, 1,
223 SOC_SINGLE("SPKMIX Switch", WM9090_SPKMIXL_ATTENUATION, 8, 1, 1),
224 SOC_SINGLE_TLV("SPKMIX IN1A Volume", WM9090_SPKMIXL_ATTENUATION, 6, 3, 1,
226 SOC_SINGLE_TLV("SPKMIX IN2A Volume", WM9090_SPKMIXL_ATTENUATION, 2, 3, 1,
229 SOC_DOUBLE_R_TLV("Headphone Volume", WM9090_LEFT_OUTPUT_VOLUME,
230 WM9090_RIGHT_OUTPUT_VOLUME, 0, 63, 0, out_tlv),
231 SOC_DOUBLE_R("Headphone Switch", WM9090_LEFT_OUTPUT_VOLUME,
232 WM9090_RIGHT_OUTPUT_VOLUME, 6, 1, 1),
233 SOC_DOUBLE_R("Headphone ZC Switch", WM9090_LEFT_OUTPUT_VOLUME,
234 WM9090_RIGHT_OUTPUT_VOLUME, 7, 1, 0),
236 SOC_SINGLE_TLV("Speaker Volume", WM9090_SPEAKER_VOLUME_LEFT, 0, 63, 0,
238 SOC_SINGLE("Speaker Switch", WM9090_SPEAKER_VOLUME_LEFT, 6, 1, 1),
239 SOC_SINGLE("Speaker ZC Switch", WM9090_SPEAKER_VOLUME_LEFT, 7, 1, 0),
240 SOC_SINGLE_TLV("Speaker Boost Volume", WM9090_CLASSD3, 3, 7, 0, spkboost_tlv),
243 static const struct snd_kcontrol_new wm9090_in1_se_controls[] = {
244 SOC_SINGLE_TLV("IN1B Volume", WM9090_IN1_LINE_INPUT_B_VOLUME, 0, 6, 0,
246 SOC_SINGLE("IN1B Switch", WM9090_IN1_LINE_INPUT_B_VOLUME, 7, 1, 1),
247 SOC_SINGLE("IN1B ZC Switch", WM9090_IN1_LINE_INPUT_B_VOLUME, 6, 1, 0),
249 SOC_SINGLE_TLV("SPKMIX IN1B Volume", WM9090_SPKMIXL_ATTENUATION, 4, 3, 1,
251 SOC_SINGLE_TLV("MIXOUTL IN1B Volume", WM9090_OUTPUT_MIXER3, 4, 3, 1,
253 SOC_SINGLE_TLV("MIXOUTR IN1B Volume", WM9090_OUTPUT_MIXER4, 4, 3, 1,
257 static const struct snd_kcontrol_new wm9090_in2_se_controls[] = {
258 SOC_SINGLE_TLV("IN2B Volume", WM9090_IN2_LINE_INPUT_B_VOLUME, 0, 6, 0,
260 SOC_SINGLE("IN2B Switch", WM9090_IN2_LINE_INPUT_B_VOLUME, 7, 1, 1),
261 SOC_SINGLE("IN2B ZC Switch", WM9090_IN2_LINE_INPUT_B_VOLUME, 6, 1, 0),
263 SOC_SINGLE_TLV("SPKMIX IN2B Volume", WM9090_SPKMIXL_ATTENUATION, 0, 3, 1,
265 SOC_SINGLE_TLV("MIXOUTL IN2B Volume", WM9090_OUTPUT_MIXER3, 0, 3, 1,
267 SOC_SINGLE_TLV("MIXOUTR IN2B Volume", WM9090_OUTPUT_MIXER4, 0, 3, 1,
271 static int hp_ev(struct snd_soc_dapm_widget *w,
272 struct snd_kcontrol *kcontrol, int event)
274 struct snd_soc_codec *codec = w->codec;
275 unsigned int reg = snd_soc_read(codec, WM9090_ANALOGUE_HP_0);
278 case SND_SOC_DAPM_POST_PMU:
279 snd_soc_update_bits(codec, WM9090_CHARGE_PUMP_1,
280 WM9090_CP_ENA, WM9090_CP_ENA);
284 snd_soc_update_bits(codec, WM9090_POWER_MANAGEMENT_1,
285 WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA,
286 WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA);
288 reg |= WM9090_HPOUT1L_DLY | WM9090_HPOUT1R_DLY;
289 snd_soc_write(codec, WM9090_ANALOGUE_HP_0, reg);
291 /* Start the DC servo. We don't currently use the
292 * ability to save the state since we don't have full
293 * control of the analogue paths and they can change
294 * DC offsets; see the WM8904 driver for an example of
297 snd_soc_write(codec, WM9090_DC_SERVO_0,
298 WM9090_DCS_ENA_CHAN_0 |
299 WM9090_DCS_ENA_CHAN_1 |
300 WM9090_DCS_TRIG_STARTUP_1 |
301 WM9090_DCS_TRIG_STARTUP_0);
302 wait_for_dc_servo(codec);
304 reg |= WM9090_HPOUT1R_OUTP | WM9090_HPOUT1R_RMV_SHORT |
305 WM9090_HPOUT1L_OUTP | WM9090_HPOUT1L_RMV_SHORT;
306 snd_soc_write(codec, WM9090_ANALOGUE_HP_0, reg);
309 case SND_SOC_DAPM_PRE_PMD:
310 reg &= ~(WM9090_HPOUT1L_RMV_SHORT |
312 WM9090_HPOUT1L_OUTP |
313 WM9090_HPOUT1R_RMV_SHORT |
315 WM9090_HPOUT1R_OUTP);
317 snd_soc_write(codec, WM9090_ANALOGUE_HP_0, reg);
319 snd_soc_write(codec, WM9090_DC_SERVO_0, 0);
321 snd_soc_update_bits(codec, WM9090_POWER_MANAGEMENT_1,
322 WM9090_HPOUT1L_ENA | WM9090_HPOUT1R_ENA,
325 snd_soc_update_bits(codec, WM9090_CHARGE_PUMP_1,
333 static const struct snd_kcontrol_new spkmix[] = {
334 SOC_DAPM_SINGLE("IN1A Switch", WM9090_SPEAKER_MIXER, 6, 1, 0),
335 SOC_DAPM_SINGLE("IN1B Switch", WM9090_SPEAKER_MIXER, 4, 1, 0),
336 SOC_DAPM_SINGLE("IN2A Switch", WM9090_SPEAKER_MIXER, 2, 1, 0),
337 SOC_DAPM_SINGLE("IN2B Switch", WM9090_SPEAKER_MIXER, 0, 1, 0),
340 static const struct snd_kcontrol_new spkout[] = {
341 SOC_DAPM_SINGLE("Mixer Switch", WM9090_SPKOUT_MIXERS, 4, 1, 0),
344 static const struct snd_kcontrol_new mixoutl[] = {
345 SOC_DAPM_SINGLE("IN1A Switch", WM9090_OUTPUT_MIXER1, 6, 1, 0),
346 SOC_DAPM_SINGLE("IN1B Switch", WM9090_OUTPUT_MIXER1, 4, 1, 0),
347 SOC_DAPM_SINGLE("IN2A Switch", WM9090_OUTPUT_MIXER1, 2, 1, 0),
348 SOC_DAPM_SINGLE("IN2B Switch", WM9090_OUTPUT_MIXER1, 0, 1, 0),
351 static const struct snd_kcontrol_new mixoutr[] = {
352 SOC_DAPM_SINGLE("IN1A Switch", WM9090_OUTPUT_MIXER2, 6, 1, 0),
353 SOC_DAPM_SINGLE("IN1B Switch", WM9090_OUTPUT_MIXER2, 4, 1, 0),
354 SOC_DAPM_SINGLE("IN2A Switch", WM9090_OUTPUT_MIXER2, 2, 1, 0),
355 SOC_DAPM_SINGLE("IN2B Switch", WM9090_OUTPUT_MIXER2, 0, 1, 0),
358 static const struct snd_soc_dapm_widget wm9090_dapm_widgets[] = {
359 SND_SOC_DAPM_INPUT("IN1+"),
360 SND_SOC_DAPM_INPUT("IN1-"),
361 SND_SOC_DAPM_INPUT("IN2+"),
362 SND_SOC_DAPM_INPUT("IN2-"),
364 SND_SOC_DAPM_SUPPLY("OSC", WM9090_POWER_MANAGEMENT_1, 3, 0, NULL, 0),
366 SND_SOC_DAPM_PGA("IN1A PGA", WM9090_POWER_MANAGEMENT_2, 7, 0, NULL, 0),
367 SND_SOC_DAPM_PGA("IN1B PGA", WM9090_POWER_MANAGEMENT_2, 6, 0, NULL, 0),
368 SND_SOC_DAPM_PGA("IN2A PGA", WM9090_POWER_MANAGEMENT_2, 5, 0, NULL, 0),
369 SND_SOC_DAPM_PGA("IN2B PGA", WM9090_POWER_MANAGEMENT_2, 4, 0, NULL, 0),
371 SND_SOC_DAPM_MIXER("SPKMIX", WM9090_POWER_MANAGEMENT_3, 3, 0,
372 spkmix, ARRAY_SIZE(spkmix)),
373 SND_SOC_DAPM_MIXER("MIXOUTL", WM9090_POWER_MANAGEMENT_3, 5, 0,
374 mixoutl, ARRAY_SIZE(mixoutl)),
375 SND_SOC_DAPM_MIXER("MIXOUTR", WM9090_POWER_MANAGEMENT_3, 4, 0,
376 mixoutr, ARRAY_SIZE(mixoutr)),
378 SND_SOC_DAPM_PGA_E("HP PGA", SND_SOC_NOPM, 0, 0, NULL, 0,
379 hp_ev, SND_SOC_DAPM_POST_PMU | SND_SOC_DAPM_PRE_PMD),
381 SND_SOC_DAPM_PGA("SPKPGA", WM9090_POWER_MANAGEMENT_3, 8, 0, NULL, 0),
382 SND_SOC_DAPM_MIXER("SPKOUT", WM9090_POWER_MANAGEMENT_1, 12, 0,
383 spkout, ARRAY_SIZE(spkout)),
385 SND_SOC_DAPM_OUTPUT("HPR"),
386 SND_SOC_DAPM_OUTPUT("HPL"),
387 SND_SOC_DAPM_OUTPUT("Speaker"),
390 static const struct snd_soc_dapm_route audio_map[] = {
391 { "IN1A PGA", NULL, "IN1+" },
392 { "IN2A PGA", NULL, "IN2+" },
394 { "SPKMIX", "IN1A Switch", "IN1A PGA" },
395 { "SPKMIX", "IN2A Switch", "IN2A PGA" },
397 { "MIXOUTL", "IN1A Switch", "IN1A PGA" },
398 { "MIXOUTL", "IN2A Switch", "IN2A PGA" },
400 { "MIXOUTR", "IN1A Switch", "IN1A PGA" },
401 { "MIXOUTR", "IN2A Switch", "IN2A PGA" },
403 { "HP PGA", NULL, "OSC" },
404 { "HP PGA", NULL, "MIXOUTL" },
405 { "HP PGA", NULL, "MIXOUTR" },
407 { "HPL", NULL, "HP PGA" },
408 { "HPR", NULL, "HP PGA" },
410 { "SPKPGA", NULL, "OSC" },
411 { "SPKPGA", NULL, "SPKMIX" },
413 { "SPKOUT", "Mixer Switch", "SPKPGA" },
415 { "Speaker", NULL, "SPKOUT" },
418 static const struct snd_soc_dapm_route audio_map_in1_se[] = {
419 { "IN1B PGA", NULL, "IN1-" },
421 { "SPKMIX", "IN1B Switch", "IN1B PGA" },
422 { "MIXOUTL", "IN1B Switch", "IN1B PGA" },
423 { "MIXOUTR", "IN1B Switch", "IN1B PGA" },
426 static const struct snd_soc_dapm_route audio_map_in1_diff[] = {
427 { "IN1A PGA", NULL, "IN1-" },
430 static const struct snd_soc_dapm_route audio_map_in2_se[] = {
431 { "IN2B PGA", NULL, "IN2-" },
433 { "SPKMIX", "IN2B Switch", "IN2B PGA" },
434 { "MIXOUTL", "IN2B Switch", "IN2B PGA" },
435 { "MIXOUTR", "IN2B Switch", "IN2B PGA" },
438 static const struct snd_soc_dapm_route audio_map_in2_diff[] = {
439 { "IN2A PGA", NULL, "IN2-" },
442 static int wm9090_add_controls(struct snd_soc_codec *codec)
444 struct wm9090_priv *wm9090 = snd_soc_codec_get_drvdata(codec);
447 snd_soc_dapm_new_controls(codec, wm9090_dapm_widgets,
448 ARRAY_SIZE(wm9090_dapm_widgets));
450 snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map));
452 snd_soc_add_controls(codec, wm9090_controls,
453 ARRAY_SIZE(wm9090_controls));
455 if (wm9090->pdata.lin1_diff) {
456 snd_soc_dapm_add_routes(codec, audio_map_in1_diff,
457 ARRAY_SIZE(audio_map_in1_diff));
459 snd_soc_dapm_add_routes(codec, audio_map_in1_se,
460 ARRAY_SIZE(audio_map_in1_se));
461 snd_soc_add_controls(codec, wm9090_in1_se_controls,
462 ARRAY_SIZE(wm9090_in1_se_controls));
465 if (wm9090->pdata.lin2_diff) {
466 snd_soc_dapm_add_routes(codec, audio_map_in2_diff,
467 ARRAY_SIZE(audio_map_in2_diff));
469 snd_soc_dapm_add_routes(codec, audio_map_in2_se,
470 ARRAY_SIZE(audio_map_in2_se));
471 snd_soc_add_controls(codec, wm9090_in2_se_controls,
472 ARRAY_SIZE(wm9090_in2_se_controls));
475 if (wm9090->pdata.agc_ena) {
476 for (i = 0; i < ARRAY_SIZE(wm9090->pdata.agc); i++)
477 snd_soc_write(codec, WM9090_AGC_CONTROL_0 + i,
478 wm9090->pdata.agc[i]);
479 snd_soc_update_bits(codec, WM9090_POWER_MANAGEMENT_3,
480 WM9090_AGC_ENA, WM9090_AGC_ENA);
482 snd_soc_update_bits(codec, WM9090_POWER_MANAGEMENT_3,
491 * The machine driver should call this from their set_bias_level; if there
492 * isn't one then this can just be set as the set_bias_level function.
494 static int wm9090_set_bias_level(struct snd_soc_codec *codec,
495 enum snd_soc_bias_level level)
497 u16 *reg_cache = codec->reg_cache;
501 case SND_SOC_BIAS_ON:
504 case SND_SOC_BIAS_PREPARE:
505 snd_soc_update_bits(codec, WM9090_ANTIPOP2, WM9090_VMID_ENA,
507 snd_soc_update_bits(codec, WM9090_POWER_MANAGEMENT_1,
509 WM9090_VMID_RES_MASK,
511 1 << WM9090_VMID_RES_SHIFT);
512 msleep(1); /* Probably an overestimate */
515 case SND_SOC_BIAS_STANDBY:
516 if (codec->bias_level == SND_SOC_BIAS_OFF) {
517 /* Restore the register cache */
518 for (i = 1; i < codec->driver->reg_cache_size; i++) {
519 if (reg_cache[i] == wm9090_reg_defaults[i])
521 if (wm9090_volatile(i))
524 ret = snd_soc_write(codec, i, reg_cache[i]);
527 "Failed to restore register %d: %d\n",
532 /* We keep VMID off during standby since the combination of
533 * ground referenced outputs and class D speaker mean that
534 * latency is not an issue.
536 snd_soc_update_bits(codec, WM9090_POWER_MANAGEMENT_1,
537 WM9090_BIAS_ENA | WM9090_VMID_RES_MASK, 0);
538 snd_soc_update_bits(codec, WM9090_ANTIPOP2,
542 case SND_SOC_BIAS_OFF:
546 codec->bias_level = level;
551 static int wm9090_probe(struct snd_soc_codec *codec)
553 struct wm9090_priv *wm9090 = snd_soc_codec_get_drvdata(codec);
554 u16 *reg_cache = codec->reg_cache;
557 codec->control_data = wm9090->control_data;
558 ret = snd_soc_codec_set_cache_io(codec, 8, 16, SND_SOC_I2C);
560 dev_err(codec->dev, "Failed to set cache I/O: %d\n", ret);
564 ret = snd_soc_read(codec, WM9090_SOFTWARE_RESET);
567 if (ret != wm9090_reg_defaults[WM9090_SOFTWARE_RESET]) {
568 dev_err(codec->dev, "Device is not a WM9090, ID=%x\n", ret);
572 ret = snd_soc_write(codec, WM9090_SOFTWARE_RESET, 0);
576 /* Configure some defaults; they will be written out when we
579 reg_cache[WM9090_IN1_LINE_INPUT_A_VOLUME] |= WM9090_IN1_VU
581 reg_cache[WM9090_IN1_LINE_INPUT_B_VOLUME] |= WM9090_IN1_VU
583 reg_cache[WM9090_IN2_LINE_INPUT_A_VOLUME] |= WM9090_IN2_VU
585 reg_cache[WM9090_IN2_LINE_INPUT_B_VOLUME] |= WM9090_IN2_VU
587 reg_cache[WM9090_SPEAKER_VOLUME_LEFT] |=
588 WM9090_SPKOUT_VU | WM9090_SPKOUTL_ZC;
589 reg_cache[WM9090_LEFT_OUTPUT_VOLUME] |=
590 WM9090_HPOUT1_VU | WM9090_HPOUT1L_ZC;
591 reg_cache[WM9090_RIGHT_OUTPUT_VOLUME] |=
592 WM9090_HPOUT1_VU | WM9090_HPOUT1R_ZC;
594 reg_cache[WM9090_CLOCKING_1] |= WM9090_TOCLK_ENA;
596 wm9090_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
598 wm9090_add_controls(codec);
604 static int wm9090_suspend(struct snd_soc_codec *codec, pm_message_t state)
606 wm9090_set_bias_level(codec, SND_SOC_BIAS_OFF);
611 static int wm9090_resume(struct snd_soc_codec *codec)
613 wm9090_set_bias_level(codec, SND_SOC_BIAS_STANDBY);
618 #define wm9090_suspend NULL
619 #define wm9090_resume NULL
622 static int wm9090_remove(struct snd_soc_codec *codec)
624 wm9090_set_bias_level(codec, SND_SOC_BIAS_OFF);
629 static struct snd_soc_codec_driver soc_codec_dev_wm9090 = {
630 .probe = wm9090_probe,
631 .remove = wm9090_remove,
632 .suspend = wm9090_suspend,
633 .resume = wm9090_resume,
634 .set_bias_level = wm9090_set_bias_level,
635 .reg_cache_size = (WM9090_MAX_REGISTER + 1),
636 .reg_word_size = sizeof(u16),
637 .reg_cache_default = wm9090_reg_defaults,
638 .volatile_register = wm9090_volatile,
641 static int wm9090_i2c_probe(struct i2c_client *i2c,
642 const struct i2c_device_id *id)
644 struct wm9090_priv *wm9090;
647 wm9090 = kzalloc(sizeof(*wm9090), GFP_KERNEL);
648 if (wm9090 == NULL) {
649 dev_err(&i2c->dev, "Can not allocate memory\n");
653 if (i2c->dev.platform_data)
654 memcpy(&wm9090->pdata, i2c->dev.platform_data,
655 sizeof(wm9090->pdata));
657 i2c_set_clientdata(i2c, wm9090);
658 wm9090->control_data = i2c;
659 mutex_init(&wm9090->mutex);
661 ret = snd_soc_register_codec(&i2c->dev,
662 &soc_codec_dev_wm9090, NULL, 0);
668 static int __devexit wm9090_i2c_remove(struct i2c_client *i2c)
670 struct wm9090_priv *wm9090 = i2c_get_clientdata(i2c);
672 snd_soc_unregister_codec(&i2c->dev);
678 static const struct i2c_device_id wm9090_id[] = {
682 MODULE_DEVICE_TABLE(i2c, wm9090_id);
684 static struct i2c_driver wm9090_i2c_driver = {
686 .name = "wm9090-codec",
687 .owner = THIS_MODULE,
689 .probe = wm9090_i2c_probe,
690 .remove = __devexit_p(wm9090_i2c_remove),
691 .id_table = wm9090_id,
694 static int __init wm9090_init(void)
696 return i2c_add_driver(&wm9090_i2c_driver);
698 module_init(wm9090_init);
700 static void __exit wm9090_exit(void)
702 i2c_del_driver(&wm9090_i2c_driver);
704 module_exit(wm9090_exit);
706 MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
707 MODULE_DESCRIPTION("WM9090 ASoC driver");
708 MODULE_LICENSE("GPL");