2 * wm8350.c -- WM8350 ALSA SoC audio driver
4 * Copyright (C) 2007, 2008 Wolfson Microelectronics PLC.
6 * Author: Liam Girdwood <lrg@slimlogic.co.uk>
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.
13 #include <linux/module.h>
14 #include <linux/moduleparam.h>
15 #include <linux/init.h>
16 #include <linux/delay.h>
18 #include <linux/platform_device.h>
19 #include <linux/mfd/wm8350/audio.h>
20 #include <linux/mfd/wm8350/core.h>
21 #include <linux/regulator/consumer.h>
22 #include <sound/core.h>
23 #include <sound/pcm.h>
24 #include <sound/pcm_params.h>
25 #include <sound/soc.h>
26 #include <sound/soc-dapm.h>
27 #include <sound/initval.h>
28 #include <sound/tlv.h>
32 #define WM8350_OUTn_0dB 0x39
34 #define WM8350_RAMP_NONE 0
35 #define WM8350_RAMP_UP 1
36 #define WM8350_RAMP_DOWN 2
38 /* We only include the analogue supplies here; the digital supplies
39 * need to be available well before this driver can be probed.
41 static const char *supply_names
[] = {
46 struct wm8350_output
{
54 struct wm8350_jack_data
{
55 struct snd_soc_jack
*jack
;
61 struct snd_soc_codec codec
;
62 struct wm8350_output out1
;
63 struct wm8350_output out2
;
64 struct wm8350_jack_data hpl
;
65 struct wm8350_jack_data hpr
;
66 struct wm8350_jack_data mic
;
67 struct regulator_bulk_data supplies
[ARRAY_SIZE(supply_names
)];
72 static unsigned int wm8350_codec_cache_read(struct snd_soc_codec
*codec
,
75 struct wm8350
*wm8350
= codec
->control_data
;
76 return wm8350
->reg_cache
[reg
];
79 static unsigned int wm8350_codec_read(struct snd_soc_codec
*codec
,
82 struct wm8350
*wm8350
= codec
->control_data
;
83 return wm8350_reg_read(wm8350
, reg
);
86 static int wm8350_codec_write(struct snd_soc_codec
*codec
, unsigned int reg
,
89 struct wm8350
*wm8350
= codec
->control_data
;
90 return wm8350_reg_write(wm8350
, reg
, value
);
94 * Ramp OUT1 PGA volume to minimise pops at stream startup and shutdown.
96 static inline int wm8350_out1_ramp_step(struct snd_soc_codec
*codec
)
98 struct wm8350_data
*wm8350_data
= codec
->private_data
;
99 struct wm8350_output
*out1
= &wm8350_data
->out1
;
100 struct wm8350
*wm8350
= codec
->control_data
;
101 int left_complete
= 0, right_complete
= 0;
105 reg
= wm8350_reg_read(wm8350
, WM8350_LOUT1_VOLUME
);
106 val
= (reg
& WM8350_OUT1L_VOL_MASK
) >> WM8350_OUT1L_VOL_SHIFT
;
108 if (out1
->ramp
== WM8350_RAMP_UP
) {
110 if (val
< out1
->left_vol
) {
112 reg
&= ~WM8350_OUT1L_VOL_MASK
;
113 wm8350_reg_write(wm8350
, WM8350_LOUT1_VOLUME
,
114 reg
| (val
<< WM8350_OUT1L_VOL_SHIFT
));
117 } else if (out1
->ramp
== WM8350_RAMP_DOWN
) {
121 reg
&= ~WM8350_OUT1L_VOL_MASK
;
122 wm8350_reg_write(wm8350
, WM8350_LOUT1_VOLUME
,
123 reg
| (val
<< WM8350_OUT1L_VOL_SHIFT
));
130 reg
= wm8350_reg_read(wm8350
, WM8350_ROUT1_VOLUME
);
131 val
= (reg
& WM8350_OUT1R_VOL_MASK
) >> WM8350_OUT1R_VOL_SHIFT
;
132 if (out1
->ramp
== WM8350_RAMP_UP
) {
134 if (val
< out1
->right_vol
) {
136 reg
&= ~WM8350_OUT1R_VOL_MASK
;
137 wm8350_reg_write(wm8350
, WM8350_ROUT1_VOLUME
,
138 reg
| (val
<< WM8350_OUT1R_VOL_SHIFT
));
141 } else if (out1
->ramp
== WM8350_RAMP_DOWN
) {
145 reg
&= ~WM8350_OUT1R_VOL_MASK
;
146 wm8350_reg_write(wm8350
, WM8350_ROUT1_VOLUME
,
147 reg
| (val
<< WM8350_OUT1R_VOL_SHIFT
));
152 /* only hit the update bit if either volume has changed this step */
153 if (!left_complete
|| !right_complete
)
154 wm8350_set_bits(wm8350
, WM8350_LOUT1_VOLUME
, WM8350_OUT1_VU
);
156 return left_complete
& right_complete
;
160 * Ramp OUT2 PGA volume to minimise pops at stream startup and shutdown.
162 static inline int wm8350_out2_ramp_step(struct snd_soc_codec
*codec
)
164 struct wm8350_data
*wm8350_data
= codec
->private_data
;
165 struct wm8350_output
*out2
= &wm8350_data
->out2
;
166 struct wm8350
*wm8350
= codec
->control_data
;
167 int left_complete
= 0, right_complete
= 0;
171 reg
= wm8350_reg_read(wm8350
, WM8350_LOUT2_VOLUME
);
172 val
= (reg
& WM8350_OUT2L_VOL_MASK
) >> WM8350_OUT1L_VOL_SHIFT
;
173 if (out2
->ramp
== WM8350_RAMP_UP
) {
175 if (val
< out2
->left_vol
) {
177 reg
&= ~WM8350_OUT2L_VOL_MASK
;
178 wm8350_reg_write(wm8350
, WM8350_LOUT2_VOLUME
,
179 reg
| (val
<< WM8350_OUT1L_VOL_SHIFT
));
182 } else if (out2
->ramp
== WM8350_RAMP_DOWN
) {
186 reg
&= ~WM8350_OUT2L_VOL_MASK
;
187 wm8350_reg_write(wm8350
, WM8350_LOUT2_VOLUME
,
188 reg
| (val
<< WM8350_OUT1L_VOL_SHIFT
));
195 reg
= wm8350_reg_read(wm8350
, WM8350_ROUT2_VOLUME
);
196 val
= (reg
& WM8350_OUT2R_VOL_MASK
) >> WM8350_OUT1R_VOL_SHIFT
;
197 if (out2
->ramp
== WM8350_RAMP_UP
) {
199 if (val
< out2
->right_vol
) {
201 reg
&= ~WM8350_OUT2R_VOL_MASK
;
202 wm8350_reg_write(wm8350
, WM8350_ROUT2_VOLUME
,
203 reg
| (val
<< WM8350_OUT1R_VOL_SHIFT
));
206 } else if (out2
->ramp
== WM8350_RAMP_DOWN
) {
210 reg
&= ~WM8350_OUT2R_VOL_MASK
;
211 wm8350_reg_write(wm8350
, WM8350_ROUT2_VOLUME
,
212 reg
| (val
<< WM8350_OUT1R_VOL_SHIFT
));
217 /* only hit the update bit if either volume has changed this step */
218 if (!left_complete
|| !right_complete
)
219 wm8350_set_bits(wm8350
, WM8350_LOUT2_VOLUME
, WM8350_OUT2_VU
);
221 return left_complete
& right_complete
;
225 * This work ramps both output PGAs at stream start/stop time to
226 * minimise pop associated with DAPM power switching.
227 * It's best to enable Zero Cross when ramping occurs to minimise any
230 static void wm8350_pga_work(struct work_struct
*work
)
232 struct snd_soc_codec
*codec
=
233 container_of(work
, struct snd_soc_codec
, delayed_work
.work
);
234 struct wm8350_data
*wm8350_data
= codec
->private_data
;
235 struct wm8350_output
*out1
= &wm8350_data
->out1
,
236 *out2
= &wm8350_data
->out2
;
237 int i
, out1_complete
, out2_complete
;
239 /* do we need to ramp at all ? */
240 if (out1
->ramp
== WM8350_RAMP_NONE
&& out2
->ramp
== WM8350_RAMP_NONE
)
243 /* PGA volumes have 6 bits of resolution to ramp */
244 for (i
= 0; i
<= 63; i
++) {
245 out1_complete
= 1, out2_complete
= 1;
246 if (out1
->ramp
!= WM8350_RAMP_NONE
)
247 out1_complete
= wm8350_out1_ramp_step(codec
);
248 if (out2
->ramp
!= WM8350_RAMP_NONE
)
249 out2_complete
= wm8350_out2_ramp_step(codec
);
251 /* ramp finished ? */
252 if (out1_complete
&& out2_complete
)
255 /* we need to delay longer on the up ramp */
256 if (out1
->ramp
== WM8350_RAMP_UP
||
257 out2
->ramp
== WM8350_RAMP_UP
) {
258 /* delay is longer over 0dB as increases are larger */
259 if (i
>= WM8350_OUTn_0dB
)
260 schedule_timeout_interruptible(msecs_to_jiffies
263 schedule_timeout_interruptible(msecs_to_jiffies
266 udelay(50); /* doesn't matter if we delay longer */
269 out1
->ramp
= WM8350_RAMP_NONE
;
270 out2
->ramp
= WM8350_RAMP_NONE
;
277 static int pga_event(struct snd_soc_dapm_widget
*w
,
278 struct snd_kcontrol
*kcontrol
, int event
)
280 struct snd_soc_codec
*codec
= w
->codec
;
281 struct wm8350_data
*wm8350_data
= codec
->private_data
;
282 struct wm8350_output
*out
;
287 out
= &wm8350_data
->out1
;
291 out
= &wm8350_data
->out2
;
300 case SND_SOC_DAPM_POST_PMU
:
301 out
->ramp
= WM8350_RAMP_UP
;
304 if (!delayed_work_pending(&codec
->delayed_work
))
305 schedule_delayed_work(&codec
->delayed_work
,
306 msecs_to_jiffies(1));
309 case SND_SOC_DAPM_PRE_PMD
:
310 out
->ramp
= WM8350_RAMP_DOWN
;
313 if (!delayed_work_pending(&codec
->delayed_work
))
314 schedule_delayed_work(&codec
->delayed_work
,
315 msecs_to_jiffies(1));
322 static int wm8350_put_volsw_2r_vu(struct snd_kcontrol
*kcontrol
,
323 struct snd_ctl_elem_value
*ucontrol
)
325 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
326 struct wm8350_data
*wm8350_priv
= codec
->private_data
;
327 struct wm8350_output
*out
= NULL
;
328 struct soc_mixer_control
*mc
=
329 (struct soc_mixer_control
*)kcontrol
->private_value
;
331 unsigned int reg
= mc
->reg
;
334 /* For OUT1 and OUT2 we shadow the values and only actually write
335 * them out when active in order to ensure the amplifier comes on
336 * as quietly as possible. */
338 case WM8350_LOUT1_VOLUME
:
339 out
= &wm8350_priv
->out1
;
341 case WM8350_LOUT2_VOLUME
:
342 out
= &wm8350_priv
->out2
;
349 out
->left_vol
= ucontrol
->value
.integer
.value
[0];
350 out
->right_vol
= ucontrol
->value
.integer
.value
[1];
355 ret
= snd_soc_put_volsw_2r(kcontrol
, ucontrol
);
359 /* now hit the volume update bits (always bit 8) */
360 val
= wm8350_codec_read(codec
, reg
);
361 wm8350_codec_write(codec
, reg
, val
| WM8350_OUT1_VU
);
365 static int wm8350_get_volsw_2r(struct snd_kcontrol
*kcontrol
,
366 struct snd_ctl_elem_value
*ucontrol
)
368 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
369 struct wm8350_data
*wm8350_priv
= codec
->private_data
;
370 struct wm8350_output
*out1
= &wm8350_priv
->out1
;
371 struct wm8350_output
*out2
= &wm8350_priv
->out2
;
372 struct soc_mixer_control
*mc
=
373 (struct soc_mixer_control
*)kcontrol
->private_value
;
374 unsigned int reg
= mc
->reg
;
376 /* If these are cached registers use the cache */
378 case WM8350_LOUT1_VOLUME
:
379 ucontrol
->value
.integer
.value
[0] = out1
->left_vol
;
380 ucontrol
->value
.integer
.value
[1] = out1
->right_vol
;
383 case WM8350_LOUT2_VOLUME
:
384 ucontrol
->value
.integer
.value
[0] = out2
->left_vol
;
385 ucontrol
->value
.integer
.value
[1] = out2
->right_vol
;
392 return snd_soc_get_volsw_2r(kcontrol
, ucontrol
);
395 /* double control with volume update */
396 #define SOC_WM8350_DOUBLE_R_TLV(xname, reg_left, reg_right, xshift, xmax, \
397 xinvert, tlv_array) \
398 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = (xname), \
399 .access = SNDRV_CTL_ELEM_ACCESS_TLV_READ | \
400 SNDRV_CTL_ELEM_ACCESS_READWRITE | \
401 SNDRV_CTL_ELEM_ACCESS_VOLATILE, \
402 .tlv.p = (tlv_array), \
403 .info = snd_soc_info_volsw_2r, \
404 .get = wm8350_get_volsw_2r, .put = wm8350_put_volsw_2r_vu, \
405 .private_value = (unsigned long)&(struct soc_mixer_control) \
406 {.reg = reg_left, .rreg = reg_right, .shift = xshift, \
407 .rshift = xshift, .max = xmax, .invert = xinvert}, }
409 static const char *wm8350_deemp
[] = { "None", "32kHz", "44.1kHz", "48kHz" };
410 static const char *wm8350_pol
[] = { "Normal", "Inv R", "Inv L", "Inv L & R" };
411 static const char *wm8350_dacmutem
[] = { "Normal", "Soft" };
412 static const char *wm8350_dacmutes
[] = { "Fast", "Slow" };
413 static const char *wm8350_adcfilter
[] = { "None", "High Pass" };
414 static const char *wm8350_adchp
[] = { "44.1kHz", "8kHz", "16kHz", "32kHz" };
415 static const char *wm8350_lr
[] = { "Left", "Right" };
417 static const struct soc_enum wm8350_enum
[] = {
418 SOC_ENUM_SINGLE(WM8350_DAC_CONTROL
, 4, 4, wm8350_deemp
),
419 SOC_ENUM_SINGLE(WM8350_DAC_CONTROL
, 0, 4, wm8350_pol
),
420 SOC_ENUM_SINGLE(WM8350_DAC_MUTE_VOLUME
, 14, 2, wm8350_dacmutem
),
421 SOC_ENUM_SINGLE(WM8350_DAC_MUTE_VOLUME
, 13, 2, wm8350_dacmutes
),
422 SOC_ENUM_SINGLE(WM8350_ADC_CONTROL
, 15, 2, wm8350_adcfilter
),
423 SOC_ENUM_SINGLE(WM8350_ADC_CONTROL
, 8, 4, wm8350_adchp
),
424 SOC_ENUM_SINGLE(WM8350_ADC_CONTROL
, 0, 4, wm8350_pol
),
425 SOC_ENUM_SINGLE(WM8350_INPUT_MIXER_VOLUME
, 15, 2, wm8350_lr
),
428 static DECLARE_TLV_DB_LINEAR(pre_amp_tlv
, -1200, 3525);
429 static DECLARE_TLV_DB_LINEAR(out_pga_tlv
, -5700, 600);
430 static DECLARE_TLV_DB_SCALE(dac_pcm_tlv
, -7163, 36, 1);
431 static DECLARE_TLV_DB_SCALE(adc_pcm_tlv
, -12700, 50, 1);
432 static DECLARE_TLV_DB_SCALE(out_mix_tlv
, -1500, 300, 1);
434 static const unsigned int capture_sd_tlv
[] = {
435 TLV_DB_RANGE_HEAD(2),
436 0, 12, TLV_DB_SCALE_ITEM(-3600, 300, 1),
437 13, 15, TLV_DB_SCALE_ITEM(0, 0, 0),
440 static const struct snd_kcontrol_new wm8350_snd_controls
[] = {
441 SOC_ENUM("Playback Deemphasis", wm8350_enum
[0]),
442 SOC_ENUM("Playback DAC Inversion", wm8350_enum
[1]),
443 SOC_WM8350_DOUBLE_R_TLV("Playback PCM Volume",
444 WM8350_DAC_DIGITAL_VOLUME_L
,
445 WM8350_DAC_DIGITAL_VOLUME_R
,
446 0, 255, 0, dac_pcm_tlv
),
447 SOC_ENUM("Playback PCM Mute Function", wm8350_enum
[2]),
448 SOC_ENUM("Playback PCM Mute Speed", wm8350_enum
[3]),
449 SOC_ENUM("Capture PCM Filter", wm8350_enum
[4]),
450 SOC_ENUM("Capture PCM HP Filter", wm8350_enum
[5]),
451 SOC_ENUM("Capture ADC Inversion", wm8350_enum
[6]),
452 SOC_WM8350_DOUBLE_R_TLV("Capture PCM Volume",
453 WM8350_ADC_DIGITAL_VOLUME_L
,
454 WM8350_ADC_DIGITAL_VOLUME_R
,
455 0, 255, 0, adc_pcm_tlv
),
456 SOC_DOUBLE_TLV("Capture Sidetone Volume",
458 8, 4, 15, 1, capture_sd_tlv
),
459 SOC_WM8350_DOUBLE_R_TLV("Capture Volume",
460 WM8350_LEFT_INPUT_VOLUME
,
461 WM8350_RIGHT_INPUT_VOLUME
,
462 2, 63, 0, pre_amp_tlv
),
463 SOC_DOUBLE_R("Capture ZC Switch",
464 WM8350_LEFT_INPUT_VOLUME
,
465 WM8350_RIGHT_INPUT_VOLUME
, 13, 1, 0),
466 SOC_SINGLE_TLV("Left Input Left Sidetone Volume",
467 WM8350_OUTPUT_LEFT_MIXER_VOLUME
, 1, 7, 0, out_mix_tlv
),
468 SOC_SINGLE_TLV("Left Input Right Sidetone Volume",
469 WM8350_OUTPUT_LEFT_MIXER_VOLUME
,
470 5, 7, 0, out_mix_tlv
),
471 SOC_SINGLE_TLV("Left Input Bypass Volume",
472 WM8350_OUTPUT_LEFT_MIXER_VOLUME
,
473 9, 7, 0, out_mix_tlv
),
474 SOC_SINGLE_TLV("Right Input Left Sidetone Volume",
475 WM8350_OUTPUT_RIGHT_MIXER_VOLUME
,
476 1, 7, 0, out_mix_tlv
),
477 SOC_SINGLE_TLV("Right Input Right Sidetone Volume",
478 WM8350_OUTPUT_RIGHT_MIXER_VOLUME
,
479 5, 7, 0, out_mix_tlv
),
480 SOC_SINGLE_TLV("Right Input Bypass Volume",
481 WM8350_OUTPUT_RIGHT_MIXER_VOLUME
,
482 13, 7, 0, out_mix_tlv
),
483 SOC_SINGLE("Left Input Mixer +20dB Switch",
484 WM8350_INPUT_MIXER_VOLUME_L
, 0, 1, 0),
485 SOC_SINGLE("Right Input Mixer +20dB Switch",
486 WM8350_INPUT_MIXER_VOLUME_R
, 0, 1, 0),
487 SOC_SINGLE_TLV("Out4 Capture Volume",
488 WM8350_INPUT_MIXER_VOLUME
,
489 1, 7, 0, out_mix_tlv
),
490 SOC_WM8350_DOUBLE_R_TLV("Out1 Playback Volume",
493 2, 63, 0, out_pga_tlv
),
494 SOC_DOUBLE_R("Out1 Playback ZC Switch",
496 WM8350_ROUT1_VOLUME
, 13, 1, 0),
497 SOC_WM8350_DOUBLE_R_TLV("Out2 Playback Volume",
500 2, 63, 0, out_pga_tlv
),
501 SOC_DOUBLE_R("Out2 Playback ZC Switch", WM8350_LOUT2_VOLUME
,
502 WM8350_ROUT2_VOLUME
, 13, 1, 0),
503 SOC_SINGLE("Out2 Right Invert Switch", WM8350_ROUT2_VOLUME
, 10, 1, 0),
504 SOC_SINGLE_TLV("Out2 Beep Volume", WM8350_BEEP_VOLUME
,
505 5, 7, 0, out_mix_tlv
),
507 SOC_DOUBLE_R("Out1 Playback Switch",
511 SOC_DOUBLE_R("Out2 Playback Switch",
521 /* Left Playback Mixer */
522 static const struct snd_kcontrol_new wm8350_left_play_mixer_controls
[] = {
523 SOC_DAPM_SINGLE("Playback Switch",
524 WM8350_LEFT_MIXER_CONTROL
, 11, 1, 0),
525 SOC_DAPM_SINGLE("Left Bypass Switch",
526 WM8350_LEFT_MIXER_CONTROL
, 2, 1, 0),
527 SOC_DAPM_SINGLE("Right Playback Switch",
528 WM8350_LEFT_MIXER_CONTROL
, 12, 1, 0),
529 SOC_DAPM_SINGLE("Left Sidetone Switch",
530 WM8350_LEFT_MIXER_CONTROL
, 0, 1, 0),
531 SOC_DAPM_SINGLE("Right Sidetone Switch",
532 WM8350_LEFT_MIXER_CONTROL
, 1, 1, 0),
535 /* Right Playback Mixer */
536 static const struct snd_kcontrol_new wm8350_right_play_mixer_controls
[] = {
537 SOC_DAPM_SINGLE("Playback Switch",
538 WM8350_RIGHT_MIXER_CONTROL
, 12, 1, 0),
539 SOC_DAPM_SINGLE("Right Bypass Switch",
540 WM8350_RIGHT_MIXER_CONTROL
, 3, 1, 0),
541 SOC_DAPM_SINGLE("Left Playback Switch",
542 WM8350_RIGHT_MIXER_CONTROL
, 11, 1, 0),
543 SOC_DAPM_SINGLE("Left Sidetone Switch",
544 WM8350_RIGHT_MIXER_CONTROL
, 0, 1, 0),
545 SOC_DAPM_SINGLE("Right Sidetone Switch",
546 WM8350_RIGHT_MIXER_CONTROL
, 1, 1, 0),
550 static const struct snd_kcontrol_new wm8350_out4_mixer_controls
[] = {
551 SOC_DAPM_SINGLE("Right Playback Switch",
552 WM8350_OUT4_MIXER_CONTROL
, 12, 1, 0),
553 SOC_DAPM_SINGLE("Left Playback Switch",
554 WM8350_OUT4_MIXER_CONTROL
, 11, 1, 0),
555 SOC_DAPM_SINGLE("Right Capture Switch",
556 WM8350_OUT4_MIXER_CONTROL
, 9, 1, 0),
557 SOC_DAPM_SINGLE("Out3 Playback Switch",
558 WM8350_OUT4_MIXER_CONTROL
, 2, 1, 0),
559 SOC_DAPM_SINGLE("Right Mixer Switch",
560 WM8350_OUT4_MIXER_CONTROL
, 1, 1, 0),
561 SOC_DAPM_SINGLE("Left Mixer Switch",
562 WM8350_OUT4_MIXER_CONTROL
, 0, 1, 0),
566 static const struct snd_kcontrol_new wm8350_out3_mixer_controls
[] = {
567 SOC_DAPM_SINGLE("Left Playback Switch",
568 WM8350_OUT3_MIXER_CONTROL
, 11, 1, 0),
569 SOC_DAPM_SINGLE("Left Capture Switch",
570 WM8350_OUT3_MIXER_CONTROL
, 8, 1, 0),
571 SOC_DAPM_SINGLE("Out4 Playback Switch",
572 WM8350_OUT3_MIXER_CONTROL
, 3, 1, 0),
573 SOC_DAPM_SINGLE("Left Mixer Switch",
574 WM8350_OUT3_MIXER_CONTROL
, 0, 1, 0),
577 /* Left Input Mixer */
578 static const struct snd_kcontrol_new wm8350_left_capt_mixer_controls
[] = {
579 SOC_DAPM_SINGLE_TLV("L2 Capture Volume",
580 WM8350_INPUT_MIXER_VOLUME_L
, 1, 7, 0, out_mix_tlv
),
581 SOC_DAPM_SINGLE_TLV("L3 Capture Volume",
582 WM8350_INPUT_MIXER_VOLUME_L
, 9, 7, 0, out_mix_tlv
),
583 SOC_DAPM_SINGLE("PGA Capture Switch",
584 WM8350_LEFT_INPUT_VOLUME
, 14, 1, 1),
587 /* Right Input Mixer */
588 static const struct snd_kcontrol_new wm8350_right_capt_mixer_controls
[] = {
589 SOC_DAPM_SINGLE_TLV("L2 Capture Volume",
590 WM8350_INPUT_MIXER_VOLUME_R
, 5, 7, 0, out_mix_tlv
),
591 SOC_DAPM_SINGLE_TLV("L3 Capture Volume",
592 WM8350_INPUT_MIXER_VOLUME_R
, 13, 7, 0, out_mix_tlv
),
593 SOC_DAPM_SINGLE("PGA Capture Switch",
594 WM8350_RIGHT_INPUT_VOLUME
, 14, 1, 1),
598 static const struct snd_kcontrol_new wm8350_left_mic_mixer_controls
[] = {
599 SOC_DAPM_SINGLE("INN Capture Switch", WM8350_INPUT_CONTROL
, 1, 1, 0),
600 SOC_DAPM_SINGLE("INP Capture Switch", WM8350_INPUT_CONTROL
, 0, 1, 0),
601 SOC_DAPM_SINGLE("IN2 Capture Switch", WM8350_INPUT_CONTROL
, 2, 1, 0),
604 /* Right Mic Mixer */
605 static const struct snd_kcontrol_new wm8350_right_mic_mixer_controls
[] = {
606 SOC_DAPM_SINGLE("INN Capture Switch", WM8350_INPUT_CONTROL
, 9, 1, 0),
607 SOC_DAPM_SINGLE("INP Capture Switch", WM8350_INPUT_CONTROL
, 8, 1, 0),
608 SOC_DAPM_SINGLE("IN2 Capture Switch", WM8350_INPUT_CONTROL
, 10, 1, 0),
612 static const struct snd_kcontrol_new wm8350_beep_switch_controls
=
613 SOC_DAPM_SINGLE("Switch", WM8350_BEEP_VOLUME
, 15, 1, 1);
615 /* Out4 Capture Mux */
616 static const struct snd_kcontrol_new wm8350_out4_capture_controls
=
617 SOC_DAPM_ENUM("Route", wm8350_enum
[7]);
619 static const struct snd_soc_dapm_widget wm8350_dapm_widgets
[] = {
621 SND_SOC_DAPM_PGA("IN3R PGA", WM8350_POWER_MGMT_2
, 11, 0, NULL
, 0),
622 SND_SOC_DAPM_PGA("IN3L PGA", WM8350_POWER_MGMT_2
, 10, 0, NULL
, 0),
623 SND_SOC_DAPM_PGA_E("Right Out2 PGA", WM8350_POWER_MGMT_3
, 3, 0, NULL
,
625 SND_SOC_DAPM_POST_PMU
| SND_SOC_DAPM_PRE_PMD
),
626 SND_SOC_DAPM_PGA_E("Left Out2 PGA", WM8350_POWER_MGMT_3
, 2, 0, NULL
, 0,
628 SND_SOC_DAPM_POST_PMU
| SND_SOC_DAPM_PRE_PMD
),
629 SND_SOC_DAPM_PGA_E("Right Out1 PGA", WM8350_POWER_MGMT_3
, 1, 0, NULL
,
631 SND_SOC_DAPM_POST_PMU
| SND_SOC_DAPM_PRE_PMD
),
632 SND_SOC_DAPM_PGA_E("Left Out1 PGA", WM8350_POWER_MGMT_3
, 0, 0, NULL
, 0,
634 SND_SOC_DAPM_POST_PMU
| SND_SOC_DAPM_PRE_PMD
),
636 SND_SOC_DAPM_MIXER("Right Capture Mixer", WM8350_POWER_MGMT_2
,
637 7, 0, &wm8350_right_capt_mixer_controls
[0],
638 ARRAY_SIZE(wm8350_right_capt_mixer_controls
)),
640 SND_SOC_DAPM_MIXER("Left Capture Mixer", WM8350_POWER_MGMT_2
,
641 6, 0, &wm8350_left_capt_mixer_controls
[0],
642 ARRAY_SIZE(wm8350_left_capt_mixer_controls
)),
644 SND_SOC_DAPM_MIXER("Out4 Mixer", WM8350_POWER_MGMT_2
, 5, 0,
645 &wm8350_out4_mixer_controls
[0],
646 ARRAY_SIZE(wm8350_out4_mixer_controls
)),
648 SND_SOC_DAPM_MIXER("Out3 Mixer", WM8350_POWER_MGMT_2
, 4, 0,
649 &wm8350_out3_mixer_controls
[0],
650 ARRAY_SIZE(wm8350_out3_mixer_controls
)),
652 SND_SOC_DAPM_MIXER("Right Playback Mixer", WM8350_POWER_MGMT_2
, 1, 0,
653 &wm8350_right_play_mixer_controls
[0],
654 ARRAY_SIZE(wm8350_right_play_mixer_controls
)),
656 SND_SOC_DAPM_MIXER("Left Playback Mixer", WM8350_POWER_MGMT_2
, 0, 0,
657 &wm8350_left_play_mixer_controls
[0],
658 ARRAY_SIZE(wm8350_left_play_mixer_controls
)),
660 SND_SOC_DAPM_MIXER("Left Mic Mixer", WM8350_POWER_MGMT_2
, 8, 0,
661 &wm8350_left_mic_mixer_controls
[0],
662 ARRAY_SIZE(wm8350_left_mic_mixer_controls
)),
664 SND_SOC_DAPM_MIXER("Right Mic Mixer", WM8350_POWER_MGMT_2
, 9, 0,
665 &wm8350_right_mic_mixer_controls
[0],
666 ARRAY_SIZE(wm8350_right_mic_mixer_controls
)),
668 /* virtual mixer for Beep and Out2R */
669 SND_SOC_DAPM_MIXER("Out2 Mixer", SND_SOC_NOPM
, 0, 0, NULL
, 0),
671 SND_SOC_DAPM_SWITCH("Beep", WM8350_POWER_MGMT_3
, 7, 0,
672 &wm8350_beep_switch_controls
),
674 SND_SOC_DAPM_ADC("Right ADC", "Right Capture",
675 WM8350_POWER_MGMT_4
, 3, 0),
676 SND_SOC_DAPM_ADC("Left ADC", "Left Capture",
677 WM8350_POWER_MGMT_4
, 2, 0),
678 SND_SOC_DAPM_DAC("Right DAC", "Right Playback",
679 WM8350_POWER_MGMT_4
, 5, 0),
680 SND_SOC_DAPM_DAC("Left DAC", "Left Playback",
681 WM8350_POWER_MGMT_4
, 4, 0),
683 SND_SOC_DAPM_MICBIAS("Mic Bias", WM8350_POWER_MGMT_1
, 4, 0),
685 SND_SOC_DAPM_MUX("Out4 Capture Channel", SND_SOC_NOPM
, 0, 0,
686 &wm8350_out4_capture_controls
),
688 SND_SOC_DAPM_OUTPUT("OUT1R"),
689 SND_SOC_DAPM_OUTPUT("OUT1L"),
690 SND_SOC_DAPM_OUTPUT("OUT2R"),
691 SND_SOC_DAPM_OUTPUT("OUT2L"),
692 SND_SOC_DAPM_OUTPUT("OUT3"),
693 SND_SOC_DAPM_OUTPUT("OUT4"),
695 SND_SOC_DAPM_INPUT("IN1RN"),
696 SND_SOC_DAPM_INPUT("IN1RP"),
697 SND_SOC_DAPM_INPUT("IN2R"),
698 SND_SOC_DAPM_INPUT("IN1LP"),
699 SND_SOC_DAPM_INPUT("IN1LN"),
700 SND_SOC_DAPM_INPUT("IN2L"),
701 SND_SOC_DAPM_INPUT("IN3R"),
702 SND_SOC_DAPM_INPUT("IN3L"),
705 static const struct snd_soc_dapm_route audio_map
[] = {
707 /* left playback mixer */
708 {"Left Playback Mixer", "Playback Switch", "Left DAC"},
709 {"Left Playback Mixer", "Left Bypass Switch", "IN3L PGA"},
710 {"Left Playback Mixer", "Right Playback Switch", "Right DAC"},
711 {"Left Playback Mixer", "Left Sidetone Switch", "Left Mic Mixer"},
712 {"Left Playback Mixer", "Right Sidetone Switch", "Right Mic Mixer"},
714 /* right playback mixer */
715 {"Right Playback Mixer", "Playback Switch", "Right DAC"},
716 {"Right Playback Mixer", "Right Bypass Switch", "IN3R PGA"},
717 {"Right Playback Mixer", "Left Playback Switch", "Left DAC"},
718 {"Right Playback Mixer", "Left Sidetone Switch", "Left Mic Mixer"},
719 {"Right Playback Mixer", "Right Sidetone Switch", "Right Mic Mixer"},
721 /* out4 playback mixer */
722 {"Out4 Mixer", "Right Playback Switch", "Right DAC"},
723 {"Out4 Mixer", "Left Playback Switch", "Left DAC"},
724 {"Out4 Mixer", "Right Capture Switch", "Right Capture Mixer"},
725 {"Out4 Mixer", "Out3 Playback Switch", "Out3 Mixer"},
726 {"Out4 Mixer", "Right Mixer Switch", "Right Playback Mixer"},
727 {"Out4 Mixer", "Left Mixer Switch", "Left Playback Mixer"},
728 {"OUT4", NULL
, "Out4 Mixer"},
730 /* out3 playback mixer */
731 {"Out3 Mixer", "Left Playback Switch", "Left DAC"},
732 {"Out3 Mixer", "Left Capture Switch", "Left Capture Mixer"},
733 {"Out3 Mixer", "Left Mixer Switch", "Left Playback Mixer"},
734 {"Out3 Mixer", "Out4 Playback Switch", "Out4 Mixer"},
735 {"OUT3", NULL
, "Out3 Mixer"},
738 {"Right Out2 PGA", NULL
, "Right Playback Mixer"},
739 {"Left Out2 PGA", NULL
, "Left Playback Mixer"},
740 {"OUT2L", NULL
, "Left Out2 PGA"},
741 {"OUT2R", NULL
, "Right Out2 PGA"},
744 {"Right Out1 PGA", NULL
, "Right Playback Mixer"},
745 {"Left Out1 PGA", NULL
, "Left Playback Mixer"},
746 {"OUT1L", NULL
, "Left Out1 PGA"},
747 {"OUT1R", NULL
, "Right Out1 PGA"},
750 {"Left ADC", NULL
, "Left Capture Mixer"},
751 {"Right ADC", NULL
, "Right Capture Mixer"},
753 /* Left capture mixer */
754 {"Left Capture Mixer", "L2 Capture Volume", "IN2L"},
755 {"Left Capture Mixer", "L3 Capture Volume", "IN3L PGA"},
756 {"Left Capture Mixer", "PGA Capture Switch", "Left Mic Mixer"},
757 {"Left Capture Mixer", NULL
, "Out4 Capture Channel"},
759 /* Right capture mixer */
760 {"Right Capture Mixer", "L2 Capture Volume", "IN2R"},
761 {"Right Capture Mixer", "L3 Capture Volume", "IN3R PGA"},
762 {"Right Capture Mixer", "PGA Capture Switch", "Right Mic Mixer"},
763 {"Right Capture Mixer", NULL
, "Out4 Capture Channel"},
766 {"IN3L PGA", NULL
, "IN3L"},
767 {"IN3R PGA", NULL
, "IN3R"},
770 {"Left Mic Mixer", "INN Capture Switch", "IN1LN"},
771 {"Left Mic Mixer", "INP Capture Switch", "IN1LP"},
772 {"Left Mic Mixer", "IN2 Capture Switch", "IN2L"},
774 /* Right Mic mixer */
775 {"Right Mic Mixer", "INN Capture Switch", "IN1RN"},
776 {"Right Mic Mixer", "INP Capture Switch", "IN1RP"},
777 {"Right Mic Mixer", "IN2 Capture Switch", "IN2R"},
780 {"Out4 Capture Channel", NULL
, "Out4 Mixer"},
783 {"Beep", NULL
, "IN3R PGA"},
786 static int wm8350_add_widgets(struct snd_soc_codec
*codec
)
790 ret
= snd_soc_dapm_new_controls(codec
,
792 ARRAY_SIZE(wm8350_dapm_widgets
));
794 dev_err(codec
->dev
, "dapm control register failed\n");
798 /* set up audio paths */
799 ret
= snd_soc_dapm_add_routes(codec
, audio_map
, ARRAY_SIZE(audio_map
));
801 dev_err(codec
->dev
, "DAPM route register failed\n");
808 static int wm8350_set_dai_sysclk(struct snd_soc_dai
*codec_dai
,
809 int clk_id
, unsigned int freq
, int dir
)
811 struct snd_soc_codec
*codec
= codec_dai
->codec
;
812 struct wm8350
*wm8350
= codec
->control_data
;
816 case WM8350_MCLK_SEL_MCLK
:
817 wm8350_clear_bits(wm8350
, WM8350_CLOCK_CONTROL_1
,
820 case WM8350_MCLK_SEL_PLL_MCLK
:
821 case WM8350_MCLK_SEL_PLL_DAC
:
822 case WM8350_MCLK_SEL_PLL_ADC
:
823 case WM8350_MCLK_SEL_PLL_32K
:
824 wm8350_set_bits(wm8350
, WM8350_CLOCK_CONTROL_1
,
826 fll_4
= wm8350_codec_read(codec
, WM8350_FLL_CONTROL_4
) &
827 ~WM8350_FLL_CLK_SRC_MASK
;
828 wm8350_codec_write(codec
, WM8350_FLL_CONTROL_4
, fll_4
| clk_id
);
833 if (dir
== WM8350_MCLK_DIR_OUT
)
834 wm8350_set_bits(wm8350
, WM8350_CLOCK_CONTROL_2
,
837 wm8350_clear_bits(wm8350
, WM8350_CLOCK_CONTROL_2
,
843 static int wm8350_set_clkdiv(struct snd_soc_dai
*codec_dai
, int div_id
, int div
)
845 struct snd_soc_codec
*codec
= codec_dai
->codec
;
849 case WM8350_ADC_CLKDIV
:
850 val
= wm8350_codec_read(codec
, WM8350_ADC_DIVIDER
) &
851 ~WM8350_ADC_CLKDIV_MASK
;
852 wm8350_codec_write(codec
, WM8350_ADC_DIVIDER
, val
| div
);
854 case WM8350_DAC_CLKDIV
:
855 val
= wm8350_codec_read(codec
, WM8350_DAC_CLOCK_CONTROL
) &
856 ~WM8350_DAC_CLKDIV_MASK
;
857 wm8350_codec_write(codec
, WM8350_DAC_CLOCK_CONTROL
, val
| div
);
859 case WM8350_BCLK_CLKDIV
:
860 val
= wm8350_codec_read(codec
, WM8350_CLOCK_CONTROL_1
) &
861 ~WM8350_BCLK_DIV_MASK
;
862 wm8350_codec_write(codec
, WM8350_CLOCK_CONTROL_1
, val
| div
);
864 case WM8350_OPCLK_CLKDIV
:
865 val
= wm8350_codec_read(codec
, WM8350_CLOCK_CONTROL_1
) &
866 ~WM8350_OPCLK_DIV_MASK
;
867 wm8350_codec_write(codec
, WM8350_CLOCK_CONTROL_1
, val
| div
);
869 case WM8350_SYS_CLKDIV
:
870 val
= wm8350_codec_read(codec
, WM8350_CLOCK_CONTROL_1
) &
871 ~WM8350_MCLK_DIV_MASK
;
872 wm8350_codec_write(codec
, WM8350_CLOCK_CONTROL_1
, val
| div
);
874 case WM8350_DACLR_CLKDIV
:
875 val
= wm8350_codec_read(codec
, WM8350_DAC_LR_RATE
) &
876 ~WM8350_DACLRC_RATE_MASK
;
877 wm8350_codec_write(codec
, WM8350_DAC_LR_RATE
, val
| div
);
879 case WM8350_ADCLR_CLKDIV
:
880 val
= wm8350_codec_read(codec
, WM8350_ADC_LR_RATE
) &
881 ~WM8350_ADCLRC_RATE_MASK
;
882 wm8350_codec_write(codec
, WM8350_ADC_LR_RATE
, val
| div
);
891 static int wm8350_set_dai_fmt(struct snd_soc_dai
*codec_dai
, unsigned int fmt
)
893 struct snd_soc_codec
*codec
= codec_dai
->codec
;
894 u16 iface
= wm8350_codec_read(codec
, WM8350_AI_FORMATING
) &
895 ~(WM8350_AIF_BCLK_INV
| WM8350_AIF_LRCLK_INV
| WM8350_AIF_FMT_MASK
);
896 u16 master
= wm8350_codec_read(codec
, WM8350_AI_DAC_CONTROL
) &
898 u16 dac_lrc
= wm8350_codec_read(codec
, WM8350_DAC_LR_RATE
) &
900 u16 adc_lrc
= wm8350_codec_read(codec
, WM8350_ADC_LR_RATE
) &
903 /* set master/slave audio interface */
904 switch (fmt
& SND_SOC_DAIFMT_MASTER_MASK
) {
905 case SND_SOC_DAIFMT_CBM_CFM
:
906 master
|= WM8350_BCLK_MSTR
;
907 dac_lrc
|= WM8350_DACLRC_ENA
;
908 adc_lrc
|= WM8350_ADCLRC_ENA
;
910 case SND_SOC_DAIFMT_CBS_CFS
:
916 /* interface format */
917 switch (fmt
& SND_SOC_DAIFMT_FORMAT_MASK
) {
918 case SND_SOC_DAIFMT_I2S
:
921 case SND_SOC_DAIFMT_RIGHT_J
:
923 case SND_SOC_DAIFMT_LEFT_J
:
926 case SND_SOC_DAIFMT_DSP_A
:
929 case SND_SOC_DAIFMT_DSP_B
:
930 iface
|= 0x3 << 8 | WM8350_AIF_LRCLK_INV
;
936 /* clock inversion */
937 switch (fmt
& SND_SOC_DAIFMT_INV_MASK
) {
938 case SND_SOC_DAIFMT_NB_NF
:
940 case SND_SOC_DAIFMT_IB_IF
:
941 iface
|= WM8350_AIF_LRCLK_INV
| WM8350_AIF_BCLK_INV
;
943 case SND_SOC_DAIFMT_IB_NF
:
944 iface
|= WM8350_AIF_BCLK_INV
;
946 case SND_SOC_DAIFMT_NB_IF
:
947 iface
|= WM8350_AIF_LRCLK_INV
;
953 wm8350_codec_write(codec
, WM8350_AI_FORMATING
, iface
);
954 wm8350_codec_write(codec
, WM8350_AI_DAC_CONTROL
, master
);
955 wm8350_codec_write(codec
, WM8350_DAC_LR_RATE
, dac_lrc
);
956 wm8350_codec_write(codec
, WM8350_ADC_LR_RATE
, adc_lrc
);
960 static int wm8350_pcm_trigger(struct snd_pcm_substream
*substream
,
961 int cmd
, struct snd_soc_dai
*codec_dai
)
963 struct snd_soc_codec
*codec
= codec_dai
->codec
;
964 int master
= wm8350_codec_cache_read(codec
, WM8350_AI_DAC_CONTROL
) &
968 /* Check that the DACs or ADCs are enabled since they are
969 * required for LRC in master mode. The DACs or ADCs need a
970 * valid audio path i.e. pin -> ADC or DAC -> pin before
971 * the LRC will be enabled in master mode. */
972 if (!master
|| cmd
!= SNDRV_PCM_TRIGGER_START
)
975 if (substream
->stream
== SNDRV_PCM_STREAM_CAPTURE
) {
976 enabled
= wm8350_codec_cache_read(codec
, WM8350_POWER_MGMT_4
) &
977 (WM8350_ADCR_ENA
| WM8350_ADCL_ENA
);
979 enabled
= wm8350_codec_cache_read(codec
, WM8350_POWER_MGMT_4
) &
980 (WM8350_DACR_ENA
| WM8350_DACL_ENA
);
985 "%s: invalid audio path - no clocks available\n",
992 static int wm8350_pcm_hw_params(struct snd_pcm_substream
*substream
,
993 struct snd_pcm_hw_params
*params
,
994 struct snd_soc_dai
*codec_dai
)
996 struct snd_soc_codec
*codec
= codec_dai
->codec
;
997 struct wm8350
*wm8350
= codec
->control_data
;
998 u16 iface
= wm8350_codec_read(codec
, WM8350_AI_FORMATING
) &
1002 switch (params_format(params
)) {
1003 case SNDRV_PCM_FORMAT_S16_LE
:
1005 case SNDRV_PCM_FORMAT_S20_3LE
:
1008 case SNDRV_PCM_FORMAT_S24_LE
:
1011 case SNDRV_PCM_FORMAT_S32_LE
:
1016 wm8350_codec_write(codec
, WM8350_AI_FORMATING
, iface
);
1018 /* The sloping stopband filter is recommended for use with
1019 * lower sample rates to improve performance.
1021 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
) {
1022 if (params_rate(params
) < 24000)
1023 wm8350_set_bits(wm8350
, WM8350_DAC_MUTE_VOLUME
,
1024 WM8350_DAC_SB_FILT
);
1026 wm8350_clear_bits(wm8350
, WM8350_DAC_MUTE_VOLUME
,
1027 WM8350_DAC_SB_FILT
);
1033 static int wm8350_mute(struct snd_soc_dai
*dai
, int mute
)
1035 struct snd_soc_codec
*codec
= dai
->codec
;
1036 struct wm8350
*wm8350
= codec
->control_data
;
1039 wm8350_set_bits(wm8350
, WM8350_DAC_MUTE
, WM8350_DAC_MUTE_ENA
);
1041 wm8350_clear_bits(wm8350
, WM8350_DAC_MUTE
, WM8350_DAC_MUTE_ENA
);
1047 int div
; /* FLL_OUTDIV */
1050 int ratio
; /* FLL_FRATIO */
1053 /* The size in bits of the fll divide multiplied by 10
1054 * to allow rounding later */
1055 #define FIXED_FLL_SIZE ((1 << 16) * 10)
1057 static inline int fll_factors(struct _fll_div
*fll_div
, unsigned int input
,
1058 unsigned int output
)
1061 unsigned int t1
, t2
, K
, Nmod
;
1063 if (output
>= 2815250 && output
<= 3125000)
1065 else if (output
>= 5625000 && output
<= 6250000)
1067 else if (output
>= 11250000 && output
<= 12500000)
1069 else if (output
>= 22500000 && output
<= 25000000)
1072 printk(KERN_ERR
"wm8350: fll freq %d out of range\n", output
);
1081 t1
= output
* (1 << (fll_div
->div
+ 1));
1082 t2
= input
* fll_div
->ratio
;
1084 fll_div
->n
= t1
/ t2
;
1088 Kpart
= FIXED_FLL_SIZE
* (long long)Nmod
;
1090 K
= Kpart
& 0xFFFFFFFF;
1092 /* Check if we need to round */
1096 /* Move down to proper range now rounding is done */
1105 static int wm8350_set_fll(struct snd_soc_dai
*codec_dai
,
1106 int pll_id
, int source
, unsigned int freq_in
,
1107 unsigned int freq_out
)
1109 struct snd_soc_codec
*codec
= codec_dai
->codec
;
1110 struct wm8350
*wm8350
= codec
->control_data
;
1111 struct wm8350_data
*priv
= codec
->private_data
;
1112 struct _fll_div fll_div
;
1116 if (freq_in
== priv
->fll_freq_in
&& freq_out
== priv
->fll_freq_out
)
1119 /* power down FLL - we need to do this for reconfiguration */
1120 wm8350_clear_bits(wm8350
, WM8350_POWER_MGMT_4
,
1121 WM8350_FLL_ENA
| WM8350_FLL_OSC_ENA
);
1123 if (freq_out
== 0 || freq_in
== 0)
1126 ret
= fll_factors(&fll_div
, freq_in
, freq_out
);
1129 dev_dbg(wm8350
->dev
,
1130 "FLL in %u FLL out %u N 0x%x K 0x%x div %d ratio %d",
1131 freq_in
, freq_out
, fll_div
.n
, fll_div
.k
, fll_div
.div
,
1134 /* set up N.K & dividers */
1135 fll_1
= wm8350_codec_read(codec
, WM8350_FLL_CONTROL_1
) &
1136 ~(WM8350_FLL_OUTDIV_MASK
| WM8350_FLL_RSP_RATE_MASK
| 0xc000);
1137 wm8350_codec_write(codec
, WM8350_FLL_CONTROL_1
,
1138 fll_1
| (fll_div
.div
<< 8) | 0x50);
1139 wm8350_codec_write(codec
, WM8350_FLL_CONTROL_2
,
1140 (fll_div
.ratio
<< 11) | (fll_div
.
1141 n
& WM8350_FLL_N_MASK
));
1142 wm8350_codec_write(codec
, WM8350_FLL_CONTROL_3
, fll_div
.k
);
1143 fll_4
= wm8350_codec_read(codec
, WM8350_FLL_CONTROL_4
) &
1144 ~(WM8350_FLL_FRAC
| WM8350_FLL_SLOW_LOCK_REF
);
1145 wm8350_codec_write(codec
, WM8350_FLL_CONTROL_4
,
1146 fll_4
| (fll_div
.k
? WM8350_FLL_FRAC
: 0) |
1147 (fll_div
.ratio
== 8 ? WM8350_FLL_SLOW_LOCK_REF
: 0));
1150 wm8350_set_bits(wm8350
, WM8350_POWER_MGMT_4
, WM8350_FLL_OSC_ENA
);
1151 wm8350_set_bits(wm8350
, WM8350_POWER_MGMT_4
, WM8350_FLL_ENA
);
1153 priv
->fll_freq_out
= freq_out
;
1154 priv
->fll_freq_in
= freq_in
;
1159 static int wm8350_set_bias_level(struct snd_soc_codec
*codec
,
1160 enum snd_soc_bias_level level
)
1162 struct wm8350
*wm8350
= codec
->control_data
;
1163 struct wm8350_data
*priv
= codec
->private_data
;
1164 struct wm8350_audio_platform_data
*platform
=
1165 wm8350
->codec
.platform_data
;
1170 case SND_SOC_BIAS_ON
:
1171 pm1
= wm8350_reg_read(wm8350
, WM8350_POWER_MGMT_1
) &
1172 ~(WM8350_VMID_MASK
| WM8350_CODEC_ISEL_MASK
);
1173 wm8350_reg_write(wm8350
, WM8350_POWER_MGMT_1
,
1174 pm1
| WM8350_VMID_50K
|
1175 platform
->codec_current_on
<< 14);
1178 case SND_SOC_BIAS_PREPARE
:
1179 pm1
= wm8350_reg_read(wm8350
, WM8350_POWER_MGMT_1
);
1180 pm1
&= ~WM8350_VMID_MASK
;
1181 wm8350_reg_write(wm8350
, WM8350_POWER_MGMT_1
,
1182 pm1
| WM8350_VMID_50K
);
1185 case SND_SOC_BIAS_STANDBY
:
1186 if (codec
->bias_level
== SND_SOC_BIAS_OFF
) {
1187 ret
= regulator_bulk_enable(ARRAY_SIZE(priv
->supplies
),
1192 /* Enable the system clock */
1193 wm8350_set_bits(wm8350
, WM8350_POWER_MGMT_4
,
1196 /* mute DAC & outputs */
1197 wm8350_set_bits(wm8350
, WM8350_DAC_MUTE
,
1198 WM8350_DAC_MUTE_ENA
);
1200 /* discharge cap memory */
1201 wm8350_reg_write(wm8350
, WM8350_ANTI_POP_CONTROL
,
1202 platform
->dis_out1
|
1203 (platform
->dis_out2
<< 2) |
1204 (platform
->dis_out3
<< 4) |
1205 (platform
->dis_out4
<< 6));
1207 /* wait for discharge */
1208 schedule_timeout_interruptible(msecs_to_jiffies
1210 cap_discharge_msecs
));
1212 /* enable antipop */
1213 wm8350_reg_write(wm8350
, WM8350_ANTI_POP_CONTROL
,
1214 (platform
->vmid_s_curve
<< 8));
1217 wm8350_reg_write(wm8350
, WM8350_POWER_MGMT_1
,
1219 codec_current_charge
<< 14) |
1220 WM8350_VMID_5K
| WM8350_VMIDEN
|
1224 schedule_timeout_interruptible(msecs_to_jiffies
1226 vmid_charge_msecs
));
1228 /* turn on vmid 300k */
1229 pm1
= wm8350_reg_read(wm8350
, WM8350_POWER_MGMT_1
) &
1230 ~(WM8350_VMID_MASK
| WM8350_CODEC_ISEL_MASK
);
1231 pm1
|= WM8350_VMID_300K
|
1232 (platform
->codec_current_standby
<< 14);
1233 wm8350_reg_write(wm8350
, WM8350_POWER_MGMT_1
,
1237 /* enable analogue bias */
1238 pm1
|= WM8350_BIASEN
;
1239 wm8350_reg_write(wm8350
, WM8350_POWER_MGMT_1
, pm1
);
1241 /* disable antipop */
1242 wm8350_reg_write(wm8350
, WM8350_ANTI_POP_CONTROL
, 0);
1245 /* turn on vmid 300k and reduce current */
1246 pm1
= wm8350_reg_read(wm8350
, WM8350_POWER_MGMT_1
) &
1247 ~(WM8350_VMID_MASK
| WM8350_CODEC_ISEL_MASK
);
1248 wm8350_reg_write(wm8350
, WM8350_POWER_MGMT_1
,
1249 pm1
| WM8350_VMID_300K
|
1251 codec_current_standby
<< 14));
1256 case SND_SOC_BIAS_OFF
:
1258 /* mute DAC & enable outputs */
1259 wm8350_set_bits(wm8350
, WM8350_DAC_MUTE
, WM8350_DAC_MUTE_ENA
);
1261 wm8350_set_bits(wm8350
, WM8350_POWER_MGMT_3
,
1262 WM8350_OUT1L_ENA
| WM8350_OUT1R_ENA
|
1263 WM8350_OUT2L_ENA
| WM8350_OUT2R_ENA
);
1265 /* enable anti pop S curve */
1266 wm8350_reg_write(wm8350
, WM8350_ANTI_POP_CONTROL
,
1267 (platform
->vmid_s_curve
<< 8));
1270 pm1
= wm8350_reg_read(wm8350
, WM8350_POWER_MGMT_1
) &
1272 wm8350_reg_write(wm8350
, WM8350_POWER_MGMT_1
, pm1
);
1275 schedule_timeout_interruptible(msecs_to_jiffies
1277 vmid_discharge_msecs
));
1279 wm8350_reg_write(wm8350
, WM8350_ANTI_POP_CONTROL
,
1280 (platform
->vmid_s_curve
<< 8) |
1281 platform
->dis_out1
|
1282 (platform
->dis_out2
<< 2) |
1283 (platform
->dis_out3
<< 4) |
1284 (platform
->dis_out4
<< 6));
1286 /* turn off VBuf and drain */
1287 pm1
= wm8350_reg_read(wm8350
, WM8350_POWER_MGMT_1
) &
1288 ~(WM8350_VBUFEN
| WM8350_VMID_MASK
);
1289 wm8350_reg_write(wm8350
, WM8350_POWER_MGMT_1
,
1290 pm1
| WM8350_OUTPUT_DRAIN_EN
);
1293 schedule_timeout_interruptible(msecs_to_jiffies
1294 (platform
->drain_msecs
));
1296 pm1
&= ~WM8350_BIASEN
;
1297 wm8350_reg_write(wm8350
, WM8350_POWER_MGMT_1
, pm1
);
1299 /* disable anti-pop */
1300 wm8350_reg_write(wm8350
, WM8350_ANTI_POP_CONTROL
, 0);
1302 wm8350_clear_bits(wm8350
, WM8350_LOUT1_VOLUME
,
1304 wm8350_clear_bits(wm8350
, WM8350_ROUT1_VOLUME
,
1306 wm8350_clear_bits(wm8350
, WM8350_LOUT2_VOLUME
,
1308 wm8350_clear_bits(wm8350
, WM8350_ROUT2_VOLUME
,
1311 /* disable clock gen */
1312 wm8350_clear_bits(wm8350
, WM8350_POWER_MGMT_4
,
1315 regulator_bulk_disable(ARRAY_SIZE(priv
->supplies
),
1319 codec
->bias_level
= level
;
1323 static int wm8350_suspend(struct platform_device
*pdev
, pm_message_t state
)
1325 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
1326 struct snd_soc_codec
*codec
= socdev
->card
->codec
;
1328 wm8350_set_bias_level(codec
, SND_SOC_BIAS_OFF
);
1332 static int wm8350_resume(struct platform_device
*pdev
)
1334 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
1335 struct snd_soc_codec
*codec
= socdev
->card
->codec
;
1337 wm8350_set_bias_level(codec
, SND_SOC_BIAS_STANDBY
);
1339 if (codec
->suspend_bias_level
== SND_SOC_BIAS_ON
)
1340 wm8350_set_bias_level(codec
, SND_SOC_BIAS_ON
);
1345 static irqreturn_t
wm8350_hp_jack_handler(int irq
, void *data
)
1347 struct wm8350_data
*priv
= data
;
1348 struct wm8350
*wm8350
= priv
->codec
.control_data
;
1352 struct wm8350_jack_data
*jack
= NULL
;
1354 switch (irq
- wm8350
->irq_base
) {
1355 case WM8350_IRQ_CODEC_JCK_DET_L
:
1357 mask
= WM8350_JACK_L_LVL
;
1360 case WM8350_IRQ_CODEC_JCK_DET_R
:
1362 mask
= WM8350_JACK_R_LVL
;
1370 dev_warn(wm8350
->dev
, "Jack interrupt called with no jack\n");
1377 reg
= wm8350_reg_read(wm8350
, WM8350_JACK_PIN_STATUS
);
1379 report
= jack
->report
;
1383 snd_soc_jack_report(jack
->jack
, report
, jack
->report
);
1389 * wm8350_hp_jack_detect - Enable headphone jack detection.
1391 * @codec: WM8350 codec
1392 * @which: left or right jack detect signal
1393 * @jack: jack to report detection events on
1394 * @report: value to report
1396 * Enables the headphone jack detection of the WM8350. If no report
1397 * is specified then detection is disabled.
1399 int wm8350_hp_jack_detect(struct snd_soc_codec
*codec
, enum wm8350_jack which
,
1400 struct snd_soc_jack
*jack
, int report
)
1402 struct wm8350_data
*priv
= codec
->private_data
;
1403 struct wm8350
*wm8350
= codec
->control_data
;
1409 priv
->hpl
.jack
= jack
;
1410 priv
->hpl
.report
= report
;
1411 irq
= WM8350_IRQ_CODEC_JCK_DET_L
;
1412 ena
= WM8350_JDL_ENA
;
1416 priv
->hpr
.jack
= jack
;
1417 priv
->hpr
.report
= report
;
1418 irq
= WM8350_IRQ_CODEC_JCK_DET_R
;
1419 ena
= WM8350_JDR_ENA
;
1427 wm8350_set_bits(wm8350
, WM8350_POWER_MGMT_4
, WM8350_TOCLK_ENA
);
1428 wm8350_set_bits(wm8350
, WM8350_JACK_DETECT
, ena
);
1430 wm8350_clear_bits(wm8350
, WM8350_JACK_DETECT
, ena
);
1434 wm8350_hp_jack_handler(irq
+ wm8350
->irq_base
, priv
);
1438 EXPORT_SYMBOL_GPL(wm8350_hp_jack_detect
);
1440 static irqreturn_t
wm8350_mic_handler(int irq
, void *data
)
1442 struct wm8350_data
*priv
= data
;
1443 struct wm8350
*wm8350
= priv
->codec
.control_data
;
1447 reg
= wm8350_reg_read(wm8350
, WM8350_JACK_PIN_STATUS
);
1448 if (reg
& WM8350_JACK_MICSCD_LVL
)
1449 report
|= priv
->mic
.short_report
;
1450 if (reg
& WM8350_JACK_MICSD_LVL
)
1451 report
|= priv
->mic
.report
;
1453 snd_soc_jack_report(priv
->mic
.jack
, report
,
1454 priv
->mic
.report
| priv
->mic
.short_report
);
1460 * wm8350_mic_jack_detect - Enable microphone jack detection.
1462 * @codec: WM8350 codec
1463 * @jack: jack to report detection events on
1464 * @detect_report: value to report when presence detected
1465 * @short_report: value to report when microphone short detected
1467 * Enables the microphone jack detection of the WM8350. If both reports
1468 * are specified as zero then detection is disabled.
1470 int wm8350_mic_jack_detect(struct snd_soc_codec
*codec
,
1471 struct snd_soc_jack
*jack
,
1472 int detect_report
, int short_report
)
1474 struct wm8350_data
*priv
= codec
->private_data
;
1475 struct wm8350
*wm8350
= codec
->control_data
;
1477 priv
->mic
.jack
= jack
;
1478 priv
->mic
.report
= detect_report
;
1479 priv
->mic
.short_report
= short_report
;
1481 if (detect_report
|| short_report
) {
1482 wm8350_set_bits(wm8350
, WM8350_POWER_MGMT_4
, WM8350_TOCLK_ENA
);
1483 wm8350_set_bits(wm8350
, WM8350_POWER_MGMT_1
,
1484 WM8350_MIC_DET_ENA
);
1486 wm8350_clear_bits(wm8350
, WM8350_POWER_MGMT_1
,
1487 WM8350_MIC_DET_ENA
);
1492 EXPORT_SYMBOL_GPL(wm8350_mic_jack_detect
);
1494 static struct snd_soc_codec
*wm8350_codec
;
1496 static int wm8350_probe(struct platform_device
*pdev
)
1498 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
1499 struct snd_soc_codec
*codec
;
1500 struct wm8350
*wm8350
;
1501 struct wm8350_data
*priv
;
1503 struct wm8350_output
*out1
;
1504 struct wm8350_output
*out2
;
1506 BUG_ON(!wm8350_codec
);
1508 socdev
->card
->codec
= wm8350_codec
;
1509 codec
= socdev
->card
->codec
;
1510 wm8350
= codec
->control_data
;
1511 priv
= codec
->private_data
;
1513 /* Enable the codec */
1514 wm8350_set_bits(wm8350
, WM8350_POWER_MGMT_5
, WM8350_CODEC_ENA
);
1516 /* Enable robust clocking mode in ADC */
1517 wm8350_codec_write(codec
, WM8350_SECURITY
, 0xa7);
1518 wm8350_codec_write(codec
, 0xde, 0x13);
1519 wm8350_codec_write(codec
, WM8350_SECURITY
, 0);
1521 /* read OUT1 & OUT2 volumes */
1524 out1
->left_vol
= (wm8350_reg_read(wm8350
, WM8350_LOUT1_VOLUME
) &
1525 WM8350_OUT1L_VOL_MASK
) >> WM8350_OUT1L_VOL_SHIFT
;
1526 out1
->right_vol
= (wm8350_reg_read(wm8350
, WM8350_ROUT1_VOLUME
) &
1527 WM8350_OUT1R_VOL_MASK
) >> WM8350_OUT1R_VOL_SHIFT
;
1528 out2
->left_vol
= (wm8350_reg_read(wm8350
, WM8350_LOUT2_VOLUME
) &
1529 WM8350_OUT2L_VOL_MASK
) >> WM8350_OUT1L_VOL_SHIFT
;
1530 out2
->right_vol
= (wm8350_reg_read(wm8350
, WM8350_ROUT2_VOLUME
) &
1531 WM8350_OUT2R_VOL_MASK
) >> WM8350_OUT1R_VOL_SHIFT
;
1532 wm8350_reg_write(wm8350
, WM8350_LOUT1_VOLUME
, 0);
1533 wm8350_reg_write(wm8350
, WM8350_ROUT1_VOLUME
, 0);
1534 wm8350_reg_write(wm8350
, WM8350_LOUT2_VOLUME
, 0);
1535 wm8350_reg_write(wm8350
, WM8350_ROUT2_VOLUME
, 0);
1537 /* Latch VU bits & mute */
1538 wm8350_set_bits(wm8350
, WM8350_LOUT1_VOLUME
,
1539 WM8350_OUT1_VU
| WM8350_OUT1L_MUTE
);
1540 wm8350_set_bits(wm8350
, WM8350_LOUT2_VOLUME
,
1541 WM8350_OUT2_VU
| WM8350_OUT2L_MUTE
);
1542 wm8350_set_bits(wm8350
, WM8350_ROUT1_VOLUME
,
1543 WM8350_OUT1_VU
| WM8350_OUT1R_MUTE
);
1544 wm8350_set_bits(wm8350
, WM8350_ROUT2_VOLUME
,
1545 WM8350_OUT2_VU
| WM8350_OUT2R_MUTE
);
1547 /* Make sure jack detect is disabled to start off with */
1548 wm8350_clear_bits(wm8350
, WM8350_JACK_DETECT
,
1549 WM8350_JDL_ENA
| WM8350_JDR_ENA
);
1551 wm8350_register_irq(wm8350
, WM8350_IRQ_CODEC_JCK_DET_L
,
1552 wm8350_hp_jack_handler
, 0, "Left jack detect",
1554 wm8350_register_irq(wm8350
, WM8350_IRQ_CODEC_JCK_DET_R
,
1555 wm8350_hp_jack_handler
, 0, "Right jack detect",
1557 wm8350_register_irq(wm8350
, WM8350_IRQ_CODEC_MICSCD
,
1558 wm8350_mic_handler
, 0, "Microphone short", priv
);
1559 wm8350_register_irq(wm8350
, WM8350_IRQ_CODEC_MICD
,
1560 wm8350_mic_handler
, 0, "Microphone detect", priv
);
1562 ret
= snd_soc_new_pcms(socdev
, SNDRV_DEFAULT_IDX1
, SNDRV_DEFAULT_STR1
);
1564 dev_err(&pdev
->dev
, "failed to create pcms\n");
1568 snd_soc_add_controls(codec
, wm8350_snd_controls
,
1569 ARRAY_SIZE(wm8350_snd_controls
));
1570 wm8350_add_widgets(codec
);
1572 wm8350_set_bias_level(codec
, SND_SOC_BIAS_STANDBY
);
1577 static int wm8350_remove(struct platform_device
*pdev
)
1579 struct snd_soc_device
*socdev
= platform_get_drvdata(pdev
);
1580 struct snd_soc_codec
*codec
= socdev
->card
->codec
;
1581 struct wm8350
*wm8350
= codec
->control_data
;
1582 struct wm8350_data
*priv
= codec
->private_data
;
1585 wm8350_clear_bits(wm8350
, WM8350_JACK_DETECT
,
1586 WM8350_JDL_ENA
| WM8350_JDR_ENA
);
1587 wm8350_clear_bits(wm8350
, WM8350_POWER_MGMT_4
, WM8350_TOCLK_ENA
);
1589 wm8350_free_irq(wm8350
, WM8350_IRQ_CODEC_MICD
, priv
);
1590 wm8350_free_irq(wm8350
, WM8350_IRQ_CODEC_MICSCD
, priv
);
1591 wm8350_free_irq(wm8350
, WM8350_IRQ_CODEC_JCK_DET_L
, priv
);
1592 wm8350_free_irq(wm8350
, WM8350_IRQ_CODEC_JCK_DET_R
, priv
);
1594 priv
->hpl
.jack
= NULL
;
1595 priv
->hpr
.jack
= NULL
;
1596 priv
->mic
.jack
= NULL
;
1598 /* cancel any work waiting to be queued. */
1599 ret
= cancel_delayed_work(&codec
->delayed_work
);
1601 /* if there was any work waiting then we run it now and
1602 * wait for its completion */
1604 schedule_delayed_work(&codec
->delayed_work
, 0);
1605 flush_scheduled_work();
1608 wm8350_set_bias_level(codec
, SND_SOC_BIAS_OFF
);
1610 wm8350_clear_bits(wm8350
, WM8350_POWER_MGMT_5
, WM8350_CODEC_ENA
);
1615 #define WM8350_RATES (SNDRV_PCM_RATE_8000_96000)
1617 #define WM8350_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
1618 SNDRV_PCM_FMTBIT_S20_3LE |\
1619 SNDRV_PCM_FMTBIT_S24_LE)
1621 static struct snd_soc_dai_ops wm8350_dai_ops
= {
1622 .hw_params
= wm8350_pcm_hw_params
,
1623 .digital_mute
= wm8350_mute
,
1624 .trigger
= wm8350_pcm_trigger
,
1625 .set_fmt
= wm8350_set_dai_fmt
,
1626 .set_sysclk
= wm8350_set_dai_sysclk
,
1627 .set_pll
= wm8350_set_fll
,
1628 .set_clkdiv
= wm8350_set_clkdiv
,
1631 struct snd_soc_dai wm8350_dai
= {
1634 .stream_name
= "Playback",
1637 .rates
= WM8350_RATES
,
1638 .formats
= WM8350_FORMATS
,
1641 .stream_name
= "Capture",
1644 .rates
= WM8350_RATES
,
1645 .formats
= WM8350_FORMATS
,
1647 .ops
= &wm8350_dai_ops
,
1649 EXPORT_SYMBOL_GPL(wm8350_dai
);
1651 struct snd_soc_codec_device soc_codec_dev_wm8350
= {
1652 .probe
= wm8350_probe
,
1653 .remove
= wm8350_remove
,
1654 .suspend
= wm8350_suspend
,
1655 .resume
= wm8350_resume
,
1657 EXPORT_SYMBOL_GPL(soc_codec_dev_wm8350
);
1659 static __devinit
int wm8350_codec_probe(struct platform_device
*pdev
)
1661 struct wm8350
*wm8350
= platform_get_drvdata(pdev
);
1662 struct wm8350_data
*priv
;
1663 struct snd_soc_codec
*codec
;
1666 if (wm8350
->codec
.platform_data
== NULL
) {
1667 dev_err(&pdev
->dev
, "No audio platform data supplied\n");
1671 priv
= kzalloc(sizeof(struct wm8350_data
), GFP_KERNEL
);
1675 for (i
= 0; i
< ARRAY_SIZE(supply_names
); i
++)
1676 priv
->supplies
[i
].supply
= supply_names
[i
];
1678 ret
= regulator_bulk_get(wm8350
->dev
, ARRAY_SIZE(priv
->supplies
),
1683 codec
= &priv
->codec
;
1684 wm8350
->codec
.codec
= codec
;
1686 wm8350_dai
.dev
= &pdev
->dev
;
1688 mutex_init(&codec
->mutex
);
1689 INIT_LIST_HEAD(&codec
->dapm_widgets
);
1690 INIT_LIST_HEAD(&codec
->dapm_paths
);
1691 codec
->dev
= &pdev
->dev
;
1692 codec
->name
= "WM8350";
1693 codec
->owner
= THIS_MODULE
;
1694 codec
->read
= wm8350_codec_read
;
1695 codec
->write
= wm8350_codec_write
;
1696 codec
->bias_level
= SND_SOC_BIAS_OFF
;
1697 codec
->set_bias_level
= wm8350_set_bias_level
;
1698 codec
->dai
= &wm8350_dai
;
1700 codec
->reg_cache_size
= WM8350_MAX_REGISTER
;
1701 codec
->private_data
= priv
;
1702 codec
->control_data
= wm8350
;
1704 /* Put the codec into reset if it wasn't already */
1705 wm8350_clear_bits(wm8350
, WM8350_POWER_MGMT_5
, WM8350_CODEC_ENA
);
1707 INIT_DELAYED_WORK(&codec
->delayed_work
, wm8350_pga_work
);
1708 ret
= snd_soc_register_codec(codec
);
1712 wm8350_codec
= codec
;
1714 ret
= snd_soc_register_dai(&wm8350_dai
);
1720 snd_soc_unregister_codec(codec
);
1722 regulator_bulk_free(ARRAY_SIZE(priv
->supplies
), priv
->supplies
);
1725 wm8350_codec
= NULL
;
1729 static int __devexit
wm8350_codec_remove(struct platform_device
*pdev
)
1731 struct wm8350
*wm8350
= platform_get_drvdata(pdev
);
1732 struct snd_soc_codec
*codec
= wm8350
->codec
.codec
;
1733 struct wm8350_data
*priv
= codec
->private_data
;
1735 snd_soc_unregister_dai(&wm8350_dai
);
1736 snd_soc_unregister_codec(codec
);
1737 regulator_bulk_free(ARRAY_SIZE(priv
->supplies
), priv
->supplies
);
1739 wm8350_codec
= NULL
;
1743 static struct platform_driver wm8350_codec_driver
= {
1745 .name
= "wm8350-codec",
1746 .owner
= THIS_MODULE
,
1748 .probe
= wm8350_codec_probe
,
1749 .remove
= __devexit_p(wm8350_codec_remove
),
1752 static __init
int wm8350_init(void)
1754 return platform_driver_register(&wm8350_codec_driver
);
1756 module_init(wm8350_init
);
1758 static __exit
void wm8350_exit(void)
1760 platform_driver_unregister(&wm8350_codec_driver
);
1762 module_exit(wm8350_exit
);
1764 MODULE_DESCRIPTION("ASoC WM8350 driver");
1765 MODULE_AUTHOR("Liam Girdwood");
1766 MODULE_LICENSE("GPL");
1767 MODULE_ALIAS("platform:wm8350-codec");