2 * sgtl5000.c -- SGTL5000 ALSA SoC Audio driver
4 * Copyright 2010-2011 Freescale Semiconductor, Inc. All Rights Reserved.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
11 #include <linux/module.h>
12 #include <linux/moduleparam.h>
13 #include <linux/init.h>
14 #include <linux/delay.h>
15 #include <linux/slab.h>
17 #include <linux/i2c.h>
18 #include <linux/clk.h>
19 #include <linux/regmap.h>
20 #include <linux/regulator/driver.h>
21 #include <linux/regulator/machine.h>
22 #include <linux/regulator/consumer.h>
23 #include <linux/of_device.h>
24 #include <sound/core.h>
25 #include <sound/tlv.h>
26 #include <sound/pcm.h>
27 #include <sound/pcm_params.h>
28 #include <sound/soc.h>
29 #include <sound/soc-dapm.h>
30 #include <sound/initval.h>
34 #define SGTL5000_DAP_REG_OFFSET 0x0100
35 #define SGTL5000_MAX_REG_OFFSET 0x013A
37 /* default value of sgtl5000 registers */
38 static const struct reg_default sgtl5000_reg_defaults
[] = {
39 { SGTL5000_CHIP_CLK_CTRL
, 0x0008 },
40 { SGTL5000_CHIP_I2S_CTRL
, 0x0010 },
41 { SGTL5000_CHIP_SSS_CTRL
, 0x0010 },
42 { SGTL5000_CHIP_DAC_VOL
, 0x3c3c },
43 { SGTL5000_CHIP_PAD_STRENGTH
, 0x015f },
44 { SGTL5000_CHIP_ANA_HP_CTRL
, 0x1818 },
45 { SGTL5000_CHIP_ANA_CTRL
, 0x0111 },
46 { SGTL5000_CHIP_LINE_OUT_VOL
, 0x0404 },
47 { SGTL5000_CHIP_ANA_POWER
, 0x7060 },
48 { SGTL5000_CHIP_PLL_CTRL
, 0x5000 },
49 { SGTL5000_DAP_BASS_ENHANCE
, 0x0040 },
50 { SGTL5000_DAP_BASS_ENHANCE_CTRL
, 0x051f },
51 { SGTL5000_DAP_SURROUND
, 0x0040 },
52 { SGTL5000_DAP_EQ_BASS_BAND0
, 0x002f },
53 { SGTL5000_DAP_EQ_BASS_BAND1
, 0x002f },
54 { SGTL5000_DAP_EQ_BASS_BAND2
, 0x002f },
55 { SGTL5000_DAP_EQ_BASS_BAND3
, 0x002f },
56 { SGTL5000_DAP_EQ_BASS_BAND4
, 0x002f },
57 { SGTL5000_DAP_MAIN_CHAN
, 0x8000 },
58 { SGTL5000_DAP_AVC_CTRL
, 0x0510 },
59 { SGTL5000_DAP_AVC_THRESHOLD
, 0x1473 },
60 { SGTL5000_DAP_AVC_ATTACK
, 0x0028 },
61 { SGTL5000_DAP_AVC_DECAY
, 0x0050 },
64 /* regulator supplies for sgtl5000, VDDD is an optional external supply */
65 enum sgtl5000_regulator_supplies
{
72 /* vddd is optional supply */
73 static const char *supply_names
[SGTL5000_SUPPLY_NUM
] = {
79 #define LDO_CONSUMER_NAME "VDDD_LDO"
80 #define LDO_VOLTAGE 1200000
82 static struct regulator_consumer_supply ldo_consumer
[] = {
83 REGULATOR_SUPPLY(LDO_CONSUMER_NAME
, NULL
),
86 static struct regulator_init_data ldo_init_data
= {
90 .valid_modes_mask
= REGULATOR_MODE_NORMAL
,
91 .valid_ops_mask
= REGULATOR_CHANGE_STATUS
,
93 .num_consumer_supplies
= 1,
94 .consumer_supplies
= &ldo_consumer
[0],
98 * sgtl5000 internal ldo regulator,
99 * enabled when VDDD not provided
101 struct ldo_regulator
{
102 struct regulator_desc desc
;
103 struct regulator_dev
*dev
;
109 /* sgtl5000 private structure in codec */
110 struct sgtl5000_priv
{
111 int sysclk
; /* sysclk rate */
112 int master
; /* i2s master or not */
113 int fmt
; /* i2s data format */
114 struct regulator_bulk_data supplies
[SGTL5000_SUPPLY_NUM
];
115 struct ldo_regulator
*ldo
;
116 struct regmap
*regmap
;
121 * mic_bias power on/off share the same register bits with
122 * output impedance of mic bias, when power on mic bias, we
123 * need reclaim it to impedance value.
129 static int mic_bias_event(struct snd_soc_dapm_widget
*w
,
130 struct snd_kcontrol
*kcontrol
, int event
)
133 case SND_SOC_DAPM_POST_PMU
:
134 /* change mic bias resistor to 4Kohm */
135 snd_soc_update_bits(w
->codec
, SGTL5000_CHIP_MIC_CTRL
,
136 SGTL5000_BIAS_R_MASK
,
137 SGTL5000_BIAS_R_4k
<< SGTL5000_BIAS_R_SHIFT
);
140 case SND_SOC_DAPM_PRE_PMD
:
141 snd_soc_update_bits(w
->codec
, SGTL5000_CHIP_MIC_CTRL
,
142 SGTL5000_BIAS_R_MASK
, 0);
149 * As manual described, ADC/DAC only works when VAG powerup,
150 * So enabled VAG before ADC/DAC up.
151 * In power down case, we need wait 400ms when vag fully ramped down.
153 static int power_vag_event(struct snd_soc_dapm_widget
*w
,
154 struct snd_kcontrol
*kcontrol
, int event
)
156 const u32 mask
= SGTL5000_DAC_POWERUP
| SGTL5000_ADC_POWERUP
;
159 case SND_SOC_DAPM_POST_PMU
:
160 snd_soc_update_bits(w
->codec
, SGTL5000_CHIP_ANA_POWER
,
161 SGTL5000_VAG_POWERUP
, SGTL5000_VAG_POWERUP
);
164 case SND_SOC_DAPM_PRE_PMD
:
166 * Don't clear VAG_POWERUP, when both DAC and ADC are
167 * operational to prevent inadvertently starving the
170 if ((snd_soc_read(w
->codec
, SGTL5000_CHIP_ANA_POWER
) &
172 snd_soc_update_bits(w
->codec
, SGTL5000_CHIP_ANA_POWER
,
173 SGTL5000_VAG_POWERUP
, 0);
184 /* input sources for ADC */
185 static const char *adc_mux_text
[] = {
189 static const struct soc_enum adc_enum
=
190 SOC_ENUM_SINGLE(SGTL5000_CHIP_ANA_CTRL
, 2, 2, adc_mux_text
);
192 static const struct snd_kcontrol_new adc_mux
=
193 SOC_DAPM_ENUM("Capture Mux", adc_enum
);
195 /* input sources for DAC */
196 static const char *dac_mux_text
[] = {
200 static const struct soc_enum dac_enum
=
201 SOC_ENUM_SINGLE(SGTL5000_CHIP_ANA_CTRL
, 6, 2, dac_mux_text
);
203 static const struct snd_kcontrol_new dac_mux
=
204 SOC_DAPM_ENUM("Headphone Mux", dac_enum
);
206 static const struct snd_soc_dapm_widget sgtl5000_dapm_widgets
[] = {
207 SND_SOC_DAPM_INPUT("LINE_IN"),
208 SND_SOC_DAPM_INPUT("MIC_IN"),
210 SND_SOC_DAPM_OUTPUT("HP_OUT"),
211 SND_SOC_DAPM_OUTPUT("LINE_OUT"),
213 SND_SOC_DAPM_SUPPLY("Mic Bias", SGTL5000_CHIP_MIC_CTRL
, 8, 0,
215 SND_SOC_DAPM_POST_PMU
| SND_SOC_DAPM_PRE_PMD
),
217 SND_SOC_DAPM_PGA("HP", SGTL5000_CHIP_ANA_POWER
, 4, 0, NULL
, 0),
218 SND_SOC_DAPM_PGA("LO", SGTL5000_CHIP_ANA_POWER
, 0, 0, NULL
, 0),
220 SND_SOC_DAPM_MUX("Capture Mux", SND_SOC_NOPM
, 0, 0, &adc_mux
),
221 SND_SOC_DAPM_MUX("Headphone Mux", SND_SOC_NOPM
, 0, 0, &dac_mux
),
223 /* aif for i2s input */
224 SND_SOC_DAPM_AIF_IN("AIFIN", "Playback",
225 0, SGTL5000_CHIP_DIG_POWER
,
228 /* aif for i2s output */
229 SND_SOC_DAPM_AIF_OUT("AIFOUT", "Capture",
230 0, SGTL5000_CHIP_DIG_POWER
,
233 SND_SOC_DAPM_ADC("ADC", "Capture", SGTL5000_CHIP_ANA_POWER
, 1, 0),
234 SND_SOC_DAPM_DAC("DAC", "Playback", SGTL5000_CHIP_ANA_POWER
, 3, 0),
236 SND_SOC_DAPM_PRE("VAG_POWER_PRE", power_vag_event
),
237 SND_SOC_DAPM_POST("VAG_POWER_POST", power_vag_event
),
240 /* routes for sgtl5000 */
241 static const struct snd_soc_dapm_route sgtl5000_dapm_routes
[] = {
242 {"Capture Mux", "LINE_IN", "LINE_IN"}, /* line_in --> adc_mux */
243 {"Capture Mux", "MIC_IN", "MIC_IN"}, /* mic_in --> adc_mux */
245 {"ADC", NULL
, "Capture Mux"}, /* adc_mux --> adc */
246 {"AIFOUT", NULL
, "ADC"}, /* adc --> i2s_out */
248 {"DAC", NULL
, "AIFIN"}, /* i2s-->dac,skip audio mux */
249 {"Headphone Mux", "DAC", "DAC"}, /* dac --> hp_mux */
250 {"LO", NULL
, "DAC"}, /* dac --> line_out */
252 {"Headphone Mux", "LINE_IN", "LINE_IN"},/* line_in --> hp_mux */
253 {"HP", NULL
, "Headphone Mux"}, /* hp_mux --> hp */
255 {"LINE_OUT", NULL
, "LO"},
256 {"HP_OUT", NULL
, "HP"},
259 /* custom function to fetch info of PCM playback volume */
260 static int dac_info_volsw(struct snd_kcontrol
*kcontrol
,
261 struct snd_ctl_elem_info
*uinfo
)
263 uinfo
->type
= SNDRV_CTL_ELEM_TYPE_INTEGER
;
265 uinfo
->value
.integer
.min
= 0;
266 uinfo
->value
.integer
.max
= 0xfc - 0x3c;
271 * custom function to get of PCM playback volume
273 * dac volume register
274 * 15-------------8-7--------------0
275 * | R channel vol | L channel vol |
276 * -------------------------------
278 * PCM volume with 0.5017 dB steps from 0 to -90 dB
280 * register values map to dB
281 * 0x3B and less = Reserved
285 * 0xFC and greater = Muted
287 * register value map to userspace value
289 * register value 0x3c(0dB) 0xf0(-90dB)0xfc
290 * ------------------------------
291 * userspace value 0xc0 0
293 static int dac_get_volsw(struct snd_kcontrol
*kcontrol
,
294 struct snd_ctl_elem_value
*ucontrol
)
296 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
301 reg
= snd_soc_read(codec
, SGTL5000_CHIP_DAC_VOL
);
303 /* get left channel volume */
304 l
= (reg
& SGTL5000_DAC_VOL_LEFT_MASK
) >> SGTL5000_DAC_VOL_LEFT_SHIFT
;
306 /* get right channel volume */
307 r
= (reg
& SGTL5000_DAC_VOL_RIGHT_MASK
) >> SGTL5000_DAC_VOL_RIGHT_SHIFT
;
309 /* make sure value fall in (0x3c,0xfc) */
310 l
= clamp(l
, 0x3c, 0xfc);
311 r
= clamp(r
, 0x3c, 0xfc);
313 /* invert it and map to userspace value */
317 ucontrol
->value
.integer
.value
[0] = l
;
318 ucontrol
->value
.integer
.value
[1] = r
;
324 * custom function to put of PCM playback volume
326 * dac volume register
327 * 15-------------8-7--------------0
328 * | R channel vol | L channel vol |
329 * -------------------------------
331 * PCM volume with 0.5017 dB steps from 0 to -90 dB
333 * register values map to dB
334 * 0x3B and less = Reserved
338 * 0xFC and greater = Muted
340 * userspace value map to register value
342 * userspace value 0xc0 0
343 * ------------------------------
344 * register value 0x3c(0dB) 0xf0(-90dB)0xfc
346 static int dac_put_volsw(struct snd_kcontrol
*kcontrol
,
347 struct snd_ctl_elem_value
*ucontrol
)
349 struct snd_soc_codec
*codec
= snd_kcontrol_chip(kcontrol
);
354 l
= ucontrol
->value
.integer
.value
[0];
355 r
= ucontrol
->value
.integer
.value
[1];
357 /* make sure userspace volume fall in (0, 0xfc-0x3c) */
358 l
= clamp(l
, 0, 0xfc - 0x3c);
359 r
= clamp(r
, 0, 0xfc - 0x3c);
361 /* invert it, get the value can be set to register */
365 /* shift to get the register value */
366 reg
= l
<< SGTL5000_DAC_VOL_LEFT_SHIFT
|
367 r
<< SGTL5000_DAC_VOL_RIGHT_SHIFT
;
369 snd_soc_write(codec
, SGTL5000_CHIP_DAC_VOL
, reg
);
374 static const DECLARE_TLV_DB_SCALE(capture_6db_attenuate
, -600, 600, 0);
376 /* tlv for mic gain, 0db 20db 30db 40db */
377 static const unsigned int mic_gain_tlv
[] = {
378 TLV_DB_RANGE_HEAD(2),
379 0, 0, TLV_DB_SCALE_ITEM(0, 0, 0),
380 1, 3, TLV_DB_SCALE_ITEM(2000, 1000, 0),
383 /* tlv for hp volume, -51.5db to 12.0db, step .5db */
384 static const DECLARE_TLV_DB_SCALE(headphone_volume
, -5150, 50, 0);
386 static const struct snd_kcontrol_new sgtl5000_snd_controls
[] = {
387 /* SOC_DOUBLE_S8_TLV with invert */
389 .iface
= SNDRV_CTL_ELEM_IFACE_MIXER
,
390 .name
= "PCM Playback Volume",
391 .access
= SNDRV_CTL_ELEM_ACCESS_TLV_READ
|
392 SNDRV_CTL_ELEM_ACCESS_READWRITE
,
393 .info
= dac_info_volsw
,
394 .get
= dac_get_volsw
,
395 .put
= dac_put_volsw
,
398 SOC_DOUBLE("Capture Volume", SGTL5000_CHIP_ANA_ADC_CTRL
, 0, 4, 0xf, 0),
399 SOC_SINGLE_TLV("Capture Attenuate Switch (-6dB)",
400 SGTL5000_CHIP_ANA_ADC_CTRL
,
401 8, 1, 0, capture_6db_attenuate
),
402 SOC_SINGLE("Capture ZC Switch", SGTL5000_CHIP_ANA_CTRL
, 1, 1, 0),
404 SOC_DOUBLE_TLV("Headphone Playback Volume",
405 SGTL5000_CHIP_ANA_HP_CTRL
,
409 SOC_SINGLE("Headphone Playback ZC Switch", SGTL5000_CHIP_ANA_CTRL
,
412 SOC_SINGLE_TLV("Mic Volume", SGTL5000_CHIP_MIC_CTRL
,
413 0, 3, 0, mic_gain_tlv
),
416 /* mute the codec used by alsa core */
417 static int sgtl5000_digital_mute(struct snd_soc_dai
*codec_dai
, int mute
)
419 struct snd_soc_codec
*codec
= codec_dai
->codec
;
420 u16 adcdac_ctrl
= SGTL5000_DAC_MUTE_LEFT
| SGTL5000_DAC_MUTE_RIGHT
;
422 snd_soc_update_bits(codec
, SGTL5000_CHIP_ADCDAC_CTRL
,
423 adcdac_ctrl
, mute
? adcdac_ctrl
: 0);
428 /* set codec format */
429 static int sgtl5000_set_dai_fmt(struct snd_soc_dai
*codec_dai
, unsigned int fmt
)
431 struct snd_soc_codec
*codec
= codec_dai
->codec
;
432 struct sgtl5000_priv
*sgtl5000
= snd_soc_codec_get_drvdata(codec
);
435 sgtl5000
->master
= 0;
437 * i2s clock and frame master setting.
439 * - clock and frame slave,
440 * - clock and frame master
442 switch (fmt
& SND_SOC_DAIFMT_MASTER_MASK
) {
443 case SND_SOC_DAIFMT_CBS_CFS
:
445 case SND_SOC_DAIFMT_CBM_CFM
:
446 i2sctl
|= SGTL5000_I2S_MASTER
;
447 sgtl5000
->master
= 1;
453 /* setting i2s data format */
454 switch (fmt
& SND_SOC_DAIFMT_FORMAT_MASK
) {
455 case SND_SOC_DAIFMT_DSP_A
:
456 i2sctl
|= SGTL5000_I2S_MODE_PCM
;
458 case SND_SOC_DAIFMT_DSP_B
:
459 i2sctl
|= SGTL5000_I2S_MODE_PCM
;
460 i2sctl
|= SGTL5000_I2S_LRALIGN
;
462 case SND_SOC_DAIFMT_I2S
:
463 i2sctl
|= SGTL5000_I2S_MODE_I2S_LJ
;
465 case SND_SOC_DAIFMT_RIGHT_J
:
466 i2sctl
|= SGTL5000_I2S_MODE_RJ
;
467 i2sctl
|= SGTL5000_I2S_LRPOL
;
469 case SND_SOC_DAIFMT_LEFT_J
:
470 i2sctl
|= SGTL5000_I2S_MODE_I2S_LJ
;
471 i2sctl
|= SGTL5000_I2S_LRALIGN
;
477 sgtl5000
->fmt
= fmt
& SND_SOC_DAIFMT_FORMAT_MASK
;
479 /* Clock inversion */
480 switch (fmt
& SND_SOC_DAIFMT_INV_MASK
) {
481 case SND_SOC_DAIFMT_NB_NF
:
483 case SND_SOC_DAIFMT_IB_NF
:
484 i2sctl
|= SGTL5000_I2S_SCLK_INV
;
490 snd_soc_write(codec
, SGTL5000_CHIP_I2S_CTRL
, i2sctl
);
495 /* set codec sysclk */
496 static int sgtl5000_set_dai_sysclk(struct snd_soc_dai
*codec_dai
,
497 int clk_id
, unsigned int freq
, int dir
)
499 struct snd_soc_codec
*codec
= codec_dai
->codec
;
500 struct sgtl5000_priv
*sgtl5000
= snd_soc_codec_get_drvdata(codec
);
503 case SGTL5000_SYSCLK
:
504 sgtl5000
->sysclk
= freq
;
514 * set clock according to i2s frame clock,
515 * sgtl5000 provide 2 clock sources.
516 * 1. sys_mclk. sample freq can only configure to
517 * 1/256, 1/384, 1/512 of sys_mclk.
518 * 2. pll. can derive any audio clocks.
520 * clock setting rules:
521 * 1. in slave mode, only sys_mclk can use.
522 * 2. as constraint by sys_mclk, sample freq should
523 * set to 32k, 44.1k and above.
524 * 3. using sys_mclk prefer to pll to save power.
526 static int sgtl5000_set_clock(struct snd_soc_codec
*codec
, int frame_rate
)
528 struct sgtl5000_priv
*sgtl5000
= snd_soc_codec_get_drvdata(codec
);
530 int sys_fs
; /* sample freq */
533 * sample freq should be divided by frame clock,
534 * if frame clock lower than 44.1khz, sample feq should set to
537 switch (frame_rate
) {
551 /* set divided factor of frame clock */
552 switch (sys_fs
/ frame_rate
) {
554 clk_ctl
|= SGTL5000_RATE_MODE_DIV_4
<< SGTL5000_RATE_MODE_SHIFT
;
557 clk_ctl
|= SGTL5000_RATE_MODE_DIV_2
<< SGTL5000_RATE_MODE_SHIFT
;
560 clk_ctl
|= SGTL5000_RATE_MODE_DIV_1
<< SGTL5000_RATE_MODE_SHIFT
;
566 /* set the sys_fs according to frame rate */
569 clk_ctl
|= SGTL5000_SYS_FS_32k
<< SGTL5000_SYS_FS_SHIFT
;
572 clk_ctl
|= SGTL5000_SYS_FS_44_1k
<< SGTL5000_SYS_FS_SHIFT
;
575 clk_ctl
|= SGTL5000_SYS_FS_48k
<< SGTL5000_SYS_FS_SHIFT
;
578 clk_ctl
|= SGTL5000_SYS_FS_96k
<< SGTL5000_SYS_FS_SHIFT
;
581 dev_err(codec
->dev
, "frame rate %d not supported\n",
587 * calculate the divider of mclk/sample_freq,
588 * factor of freq =96k can only be 256, since mclk in range (12m,27m)
590 switch (sgtl5000
->sysclk
/ sys_fs
) {
592 clk_ctl
|= SGTL5000_MCLK_FREQ_256FS
<<
593 SGTL5000_MCLK_FREQ_SHIFT
;
596 clk_ctl
|= SGTL5000_MCLK_FREQ_384FS
<<
597 SGTL5000_MCLK_FREQ_SHIFT
;
600 clk_ctl
|= SGTL5000_MCLK_FREQ_512FS
<<
601 SGTL5000_MCLK_FREQ_SHIFT
;
604 /* if mclk not satisify the divider, use pll */
605 if (sgtl5000
->master
) {
606 clk_ctl
|= SGTL5000_MCLK_FREQ_PLL
<<
607 SGTL5000_MCLK_FREQ_SHIFT
;
610 "PLL not supported in slave mode\n");
615 /* if using pll, please check manual 6.4.2 for detail */
616 if ((clk_ctl
& SGTL5000_MCLK_FREQ_MASK
) == SGTL5000_MCLK_FREQ_PLL
) {
620 unsigned int in
, int_div
, frac_div
;
622 if (sgtl5000
->sysclk
> 17000000) {
624 in
= sgtl5000
->sysclk
/ 2;
627 in
= sgtl5000
->sysclk
;
638 pll_ctl
= int_div
<< SGTL5000_PLL_INT_DIV_SHIFT
|
639 frac_div
<< SGTL5000_PLL_FRAC_DIV_SHIFT
;
641 snd_soc_write(codec
, SGTL5000_CHIP_PLL_CTRL
, pll_ctl
);
643 snd_soc_update_bits(codec
,
644 SGTL5000_CHIP_CLK_TOP_CTRL
,
645 SGTL5000_INPUT_FREQ_DIV2
,
646 SGTL5000_INPUT_FREQ_DIV2
);
648 snd_soc_update_bits(codec
,
649 SGTL5000_CHIP_CLK_TOP_CTRL
,
650 SGTL5000_INPUT_FREQ_DIV2
,
654 snd_soc_update_bits(codec
, SGTL5000_CHIP_ANA_POWER
,
655 SGTL5000_PLL_POWERUP
| SGTL5000_VCOAMP_POWERUP
,
656 SGTL5000_PLL_POWERUP
| SGTL5000_VCOAMP_POWERUP
);
659 snd_soc_update_bits(codec
, SGTL5000_CHIP_ANA_POWER
,
660 SGTL5000_PLL_POWERUP
| SGTL5000_VCOAMP_POWERUP
,
664 /* if using pll, clk_ctrl must be set after pll power up */
665 snd_soc_write(codec
, SGTL5000_CHIP_CLK_CTRL
, clk_ctl
);
671 * Set PCM DAI bit size and sample rate.
672 * input: params_rate, params_fmt
674 static int sgtl5000_pcm_hw_params(struct snd_pcm_substream
*substream
,
675 struct snd_pcm_hw_params
*params
,
676 struct snd_soc_dai
*dai
)
678 struct snd_soc_codec
*codec
= dai
->codec
;
679 struct sgtl5000_priv
*sgtl5000
= snd_soc_codec_get_drvdata(codec
);
680 int channels
= params_channels(params
);
685 /* sysclk should already set */
686 if (!sgtl5000
->sysclk
) {
687 dev_err(codec
->dev
, "%s: set sysclk first!\n", __func__
);
691 if (substream
->stream
== SNDRV_PCM_STREAM_PLAYBACK
)
692 stereo
= SGTL5000_DAC_STEREO
;
694 stereo
= SGTL5000_ADC_STEREO
;
696 /* set mono to save power */
697 snd_soc_update_bits(codec
, SGTL5000_CHIP_ANA_POWER
, stereo
,
698 channels
== 1 ? 0 : stereo
);
700 /* set codec clock base on lrclk */
701 ret
= sgtl5000_set_clock(codec
, params_rate(params
));
705 /* set i2s data format */
706 switch (params_format(params
)) {
707 case SNDRV_PCM_FORMAT_S16_LE
:
708 if (sgtl5000
->fmt
== SND_SOC_DAIFMT_RIGHT_J
)
710 i2s_ctl
|= SGTL5000_I2S_DLEN_16
<< SGTL5000_I2S_DLEN_SHIFT
;
711 i2s_ctl
|= SGTL5000_I2S_SCLKFREQ_32FS
<<
712 SGTL5000_I2S_SCLKFREQ_SHIFT
;
714 case SNDRV_PCM_FORMAT_S20_3LE
:
715 i2s_ctl
|= SGTL5000_I2S_DLEN_20
<< SGTL5000_I2S_DLEN_SHIFT
;
716 i2s_ctl
|= SGTL5000_I2S_SCLKFREQ_64FS
<<
717 SGTL5000_I2S_SCLKFREQ_SHIFT
;
719 case SNDRV_PCM_FORMAT_S24_LE
:
720 i2s_ctl
|= SGTL5000_I2S_DLEN_24
<< SGTL5000_I2S_DLEN_SHIFT
;
721 i2s_ctl
|= SGTL5000_I2S_SCLKFREQ_64FS
<<
722 SGTL5000_I2S_SCLKFREQ_SHIFT
;
724 case SNDRV_PCM_FORMAT_S32_LE
:
725 if (sgtl5000
->fmt
== SND_SOC_DAIFMT_RIGHT_J
)
727 i2s_ctl
|= SGTL5000_I2S_DLEN_32
<< SGTL5000_I2S_DLEN_SHIFT
;
728 i2s_ctl
|= SGTL5000_I2S_SCLKFREQ_64FS
<<
729 SGTL5000_I2S_SCLKFREQ_SHIFT
;
735 snd_soc_update_bits(codec
, SGTL5000_CHIP_I2S_CTRL
,
736 SGTL5000_I2S_DLEN_MASK
| SGTL5000_I2S_SCLKFREQ_MASK
,
742 #ifdef CONFIG_REGULATOR
743 static int ldo_regulator_is_enabled(struct regulator_dev
*dev
)
745 struct ldo_regulator
*ldo
= rdev_get_drvdata(dev
);
750 static int ldo_regulator_enable(struct regulator_dev
*dev
)
752 struct ldo_regulator
*ldo
= rdev_get_drvdata(dev
);
753 struct snd_soc_codec
*codec
= (struct snd_soc_codec
*)ldo
->codec_data
;
756 if (ldo_regulator_is_enabled(dev
))
759 /* set regulator value firstly */
760 reg
= (1600 - ldo
->voltage
/ 1000) / 50;
761 reg
= clamp(reg
, 0x0, 0xf);
763 /* amend the voltage value, unit: uV */
764 ldo
->voltage
= (1600 - reg
* 50) * 1000;
766 /* set voltage to register */
767 snd_soc_update_bits(codec
, SGTL5000_CHIP_LINREG_CTRL
,
768 SGTL5000_LINREG_VDDD_MASK
, reg
);
770 snd_soc_update_bits(codec
, SGTL5000_CHIP_ANA_POWER
,
771 SGTL5000_LINEREG_D_POWERUP
,
772 SGTL5000_LINEREG_D_POWERUP
);
774 /* when internal ldo enabled, simple digital power can be disabled */
775 snd_soc_update_bits(codec
, SGTL5000_CHIP_ANA_POWER
,
776 SGTL5000_LINREG_SIMPLE_POWERUP
,
783 static int ldo_regulator_disable(struct regulator_dev
*dev
)
785 struct ldo_regulator
*ldo
= rdev_get_drvdata(dev
);
786 struct snd_soc_codec
*codec
= (struct snd_soc_codec
*)ldo
->codec_data
;
788 snd_soc_update_bits(codec
, SGTL5000_CHIP_ANA_POWER
,
789 SGTL5000_LINEREG_D_POWERUP
,
792 /* clear voltage info */
793 snd_soc_update_bits(codec
, SGTL5000_CHIP_LINREG_CTRL
,
794 SGTL5000_LINREG_VDDD_MASK
, 0);
801 static int ldo_regulator_get_voltage(struct regulator_dev
*dev
)
803 struct ldo_regulator
*ldo
= rdev_get_drvdata(dev
);
808 static struct regulator_ops ldo_regulator_ops
= {
809 .is_enabled
= ldo_regulator_is_enabled
,
810 .enable
= ldo_regulator_enable
,
811 .disable
= ldo_regulator_disable
,
812 .get_voltage
= ldo_regulator_get_voltage
,
815 static int ldo_regulator_register(struct snd_soc_codec
*codec
,
816 struct regulator_init_data
*init_data
,
819 struct ldo_regulator
*ldo
;
820 struct sgtl5000_priv
*sgtl5000
= snd_soc_codec_get_drvdata(codec
);
821 struct regulator_config config
= { };
823 ldo
= kzalloc(sizeof(struct ldo_regulator
), GFP_KERNEL
);
826 dev_err(codec
->dev
, "failed to allocate ldo_regulator\n");
830 ldo
->desc
.name
= kstrdup(dev_name(codec
->dev
), GFP_KERNEL
);
831 if (!ldo
->desc
.name
) {
833 dev_err(codec
->dev
, "failed to allocate decs name memory\n");
837 ldo
->desc
.type
= REGULATOR_VOLTAGE
;
838 ldo
->desc
.owner
= THIS_MODULE
;
839 ldo
->desc
.ops
= &ldo_regulator_ops
;
840 ldo
->desc
.n_voltages
= 1;
842 ldo
->codec_data
= codec
;
843 ldo
->voltage
= voltage
;
845 config
.dev
= codec
->dev
;
846 config
.driver_data
= ldo
;
847 config
.init_data
= init_data
;
849 ldo
->dev
= regulator_register(&ldo
->desc
, &config
);
850 if (IS_ERR(ldo
->dev
)) {
851 int ret
= PTR_ERR(ldo
->dev
);
853 dev_err(codec
->dev
, "failed to register regulator\n");
854 kfree(ldo
->desc
.name
);
864 static int ldo_regulator_remove(struct snd_soc_codec
*codec
)
866 struct sgtl5000_priv
*sgtl5000
= snd_soc_codec_get_drvdata(codec
);
867 struct ldo_regulator
*ldo
= sgtl5000
->ldo
;
872 regulator_unregister(ldo
->dev
);
873 kfree(ldo
->desc
.name
);
879 static int ldo_regulator_register(struct snd_soc_codec
*codec
,
880 struct regulator_init_data
*init_data
,
883 dev_err(codec
->dev
, "this setup needs regulator support in the kernel\n");
887 static int ldo_regulator_remove(struct snd_soc_codec
*codec
)
895 * common state changes:
897 * off --> standby --> prepare --> on
898 * standby --> prepare --> on
901 * on --> prepare --> standby
903 static int sgtl5000_set_bias_level(struct snd_soc_codec
*codec
,
904 enum snd_soc_bias_level level
)
907 struct sgtl5000_priv
*sgtl5000
= snd_soc_codec_get_drvdata(codec
);
910 case SND_SOC_BIAS_ON
:
911 case SND_SOC_BIAS_PREPARE
:
913 case SND_SOC_BIAS_STANDBY
:
914 if (codec
->dapm
.bias_level
== SND_SOC_BIAS_OFF
) {
915 ret
= regulator_bulk_enable(
916 ARRAY_SIZE(sgtl5000
->supplies
),
922 regcache_cache_only(sgtl5000
->regmap
, false);
924 ret
= regcache_sync(sgtl5000
->regmap
);
927 "Failed to restore cache: %d\n", ret
);
929 regcache_cache_only(sgtl5000
->regmap
, true);
930 regulator_bulk_disable(ARRAY_SIZE(sgtl5000
->supplies
),
938 case SND_SOC_BIAS_OFF
:
939 regcache_cache_only(sgtl5000
->regmap
, true);
940 regulator_bulk_disable(ARRAY_SIZE(sgtl5000
->supplies
),
945 codec
->dapm
.bias_level
= level
;
949 #define SGTL5000_FORMATS (SNDRV_PCM_FMTBIT_S16_LE |\
950 SNDRV_PCM_FMTBIT_S20_3LE |\
951 SNDRV_PCM_FMTBIT_S24_LE |\
952 SNDRV_PCM_FMTBIT_S32_LE)
954 static const struct snd_soc_dai_ops sgtl5000_ops
= {
955 .hw_params
= sgtl5000_pcm_hw_params
,
956 .digital_mute
= sgtl5000_digital_mute
,
957 .set_fmt
= sgtl5000_set_dai_fmt
,
958 .set_sysclk
= sgtl5000_set_dai_sysclk
,
961 static struct snd_soc_dai_driver sgtl5000_dai
= {
964 .stream_name
= "Playback",
968 * only support 8~48K + 96K,
969 * TODO modify hw_param to support more
971 .rates
= SNDRV_PCM_RATE_8000_48000
| SNDRV_PCM_RATE_96000
,
972 .formats
= SGTL5000_FORMATS
,
975 .stream_name
= "Capture",
978 .rates
= SNDRV_PCM_RATE_8000_48000
| SNDRV_PCM_RATE_96000
,
979 .formats
= SGTL5000_FORMATS
,
981 .ops
= &sgtl5000_ops
,
982 .symmetric_rates
= 1,
985 static bool sgtl5000_volatile(struct device
*dev
, unsigned int reg
)
988 case SGTL5000_CHIP_ID
:
989 case SGTL5000_CHIP_ADCDAC_CTRL
:
990 case SGTL5000_CHIP_ANA_STATUS
:
997 static bool sgtl5000_readable(struct device
*dev
, unsigned int reg
)
1000 case SGTL5000_CHIP_ID
:
1001 case SGTL5000_CHIP_DIG_POWER
:
1002 case SGTL5000_CHIP_CLK_CTRL
:
1003 case SGTL5000_CHIP_I2S_CTRL
:
1004 case SGTL5000_CHIP_SSS_CTRL
:
1005 case SGTL5000_CHIP_ADCDAC_CTRL
:
1006 case SGTL5000_CHIP_DAC_VOL
:
1007 case SGTL5000_CHIP_PAD_STRENGTH
:
1008 case SGTL5000_CHIP_ANA_ADC_CTRL
:
1009 case SGTL5000_CHIP_ANA_HP_CTRL
:
1010 case SGTL5000_CHIP_ANA_CTRL
:
1011 case SGTL5000_CHIP_LINREG_CTRL
:
1012 case SGTL5000_CHIP_REF_CTRL
:
1013 case SGTL5000_CHIP_MIC_CTRL
:
1014 case SGTL5000_CHIP_LINE_OUT_CTRL
:
1015 case SGTL5000_CHIP_LINE_OUT_VOL
:
1016 case SGTL5000_CHIP_ANA_POWER
:
1017 case SGTL5000_CHIP_PLL_CTRL
:
1018 case SGTL5000_CHIP_CLK_TOP_CTRL
:
1019 case SGTL5000_CHIP_ANA_STATUS
:
1020 case SGTL5000_CHIP_SHORT_CTRL
:
1021 case SGTL5000_CHIP_ANA_TEST2
:
1022 case SGTL5000_DAP_CTRL
:
1023 case SGTL5000_DAP_PEQ
:
1024 case SGTL5000_DAP_BASS_ENHANCE
:
1025 case SGTL5000_DAP_BASS_ENHANCE_CTRL
:
1026 case SGTL5000_DAP_AUDIO_EQ
:
1027 case SGTL5000_DAP_SURROUND
:
1028 case SGTL5000_DAP_FLT_COEF_ACCESS
:
1029 case SGTL5000_DAP_COEF_WR_B0_MSB
:
1030 case SGTL5000_DAP_COEF_WR_B0_LSB
:
1031 case SGTL5000_DAP_EQ_BASS_BAND0
:
1032 case SGTL5000_DAP_EQ_BASS_BAND1
:
1033 case SGTL5000_DAP_EQ_BASS_BAND2
:
1034 case SGTL5000_DAP_EQ_BASS_BAND3
:
1035 case SGTL5000_DAP_EQ_BASS_BAND4
:
1036 case SGTL5000_DAP_MAIN_CHAN
:
1037 case SGTL5000_DAP_MIX_CHAN
:
1038 case SGTL5000_DAP_AVC_CTRL
:
1039 case SGTL5000_DAP_AVC_THRESHOLD
:
1040 case SGTL5000_DAP_AVC_ATTACK
:
1041 case SGTL5000_DAP_AVC_DECAY
:
1042 case SGTL5000_DAP_COEF_WR_B1_MSB
:
1043 case SGTL5000_DAP_COEF_WR_B1_LSB
:
1044 case SGTL5000_DAP_COEF_WR_B2_MSB
:
1045 case SGTL5000_DAP_COEF_WR_B2_LSB
:
1046 case SGTL5000_DAP_COEF_WR_A1_MSB
:
1047 case SGTL5000_DAP_COEF_WR_A1_LSB
:
1048 case SGTL5000_DAP_COEF_WR_A2_MSB
:
1049 case SGTL5000_DAP_COEF_WR_A2_LSB
:
1057 #ifdef CONFIG_SUSPEND
1058 static int sgtl5000_suspend(struct snd_soc_codec
*codec
)
1060 sgtl5000_set_bias_level(codec
, SND_SOC_BIAS_OFF
);
1066 * restore all sgtl5000 registers,
1067 * since a big hole between dap and regular registers,
1068 * we will restore them respectively.
1070 static int sgtl5000_restore_regs(struct snd_soc_codec
*codec
)
1072 u16
*cache
= codec
->reg_cache
;
1075 /* restore regular registers */
1076 for (reg
= 0; reg
<= SGTL5000_CHIP_SHORT_CTRL
; reg
+= 2) {
1078 /* These regs should restore in particular order */
1079 if (reg
== SGTL5000_CHIP_ANA_POWER
||
1080 reg
== SGTL5000_CHIP_CLK_CTRL
||
1081 reg
== SGTL5000_CHIP_LINREG_CTRL
||
1082 reg
== SGTL5000_CHIP_LINE_OUT_CTRL
||
1083 reg
== SGTL5000_CHIP_REF_CTRL
)
1086 snd_soc_write(codec
, reg
, cache
[reg
]);
1089 /* restore dap registers */
1090 for (reg
= SGTL5000_DAP_REG_OFFSET
; reg
< SGTL5000_MAX_REG_OFFSET
; reg
+= 2)
1091 snd_soc_write(codec
, reg
, cache
[reg
]);
1094 * restore these regs according to the power setting sequence in
1095 * sgtl5000_set_power_regs() and clock setting sequence in
1096 * sgtl5000_set_clock().
1098 * The order of restore is:
1099 * 1. SGTL5000_CHIP_CLK_CTRL MCLK_FREQ bits (1:0) should be restore after
1100 * SGTL5000_CHIP_ANA_POWER PLL bits set
1101 * 2. SGTL5000_CHIP_LINREG_CTRL should be set before
1102 * SGTL5000_CHIP_ANA_POWER LINREG_D restored
1103 * 3. SGTL5000_CHIP_REF_CTRL controls Analog Ground Voltage,
1104 * prefer to resotre it after SGTL5000_CHIP_ANA_POWER restored
1106 snd_soc_write(codec
, SGTL5000_CHIP_LINREG_CTRL
,
1107 cache
[SGTL5000_CHIP_LINREG_CTRL
]);
1109 snd_soc_write(codec
, SGTL5000_CHIP_ANA_POWER
,
1110 cache
[SGTL5000_CHIP_ANA_POWER
]);
1112 snd_soc_write(codec
, SGTL5000_CHIP_CLK_CTRL
,
1113 cache
[SGTL5000_CHIP_CLK_CTRL
]);
1115 snd_soc_write(codec
, SGTL5000_CHIP_REF_CTRL
,
1116 cache
[SGTL5000_CHIP_REF_CTRL
]);
1118 snd_soc_write(codec
, SGTL5000_CHIP_LINE_OUT_CTRL
,
1119 cache
[SGTL5000_CHIP_LINE_OUT_CTRL
]);
1123 static int sgtl5000_resume(struct snd_soc_codec
*codec
)
1125 /* Bring the codec back up to standby to enable regulators */
1126 sgtl5000_set_bias_level(codec
, SND_SOC_BIAS_STANDBY
);
1128 /* Restore registers by cached in memory */
1129 sgtl5000_restore_regs(codec
);
1133 #define sgtl5000_suspend NULL
1134 #define sgtl5000_resume NULL
1135 #endif /* CONFIG_SUSPEND */
1138 * sgtl5000 has 3 internal power supplies:
1139 * 1. VAG, normally set to vdda/2
1140 * 2. chargepump, set to different value
1141 * according to voltage of vdda and vddio
1142 * 3. line out VAG, normally set to vddio/2
1144 * and should be set according to:
1145 * 1. vddd provided by external or not
1146 * 2. vdda and vddio voltage value. > 3.1v or not
1147 * 3. chip revision >=0x11 or not. If >=0x11, not use external vddd.
1149 static int sgtl5000_set_power_regs(struct snd_soc_codec
*codec
)
1157 struct sgtl5000_priv
*sgtl5000
= snd_soc_codec_get_drvdata(codec
);
1159 vdda
= regulator_get_voltage(sgtl5000
->supplies
[VDDA
].consumer
);
1160 vddio
= regulator_get_voltage(sgtl5000
->supplies
[VDDIO
].consumer
);
1161 vddd
= regulator_get_voltage(sgtl5000
->supplies
[VDDD
].consumer
);
1164 vddio
= vddio
/ 1000;
1167 if (vdda
<= 0 || vddio
<= 0 || vddd
< 0) {
1168 dev_err(codec
->dev
, "regulator voltage not set correctly\n");
1173 /* according to datasheet, maximum voltage of supplies */
1174 if (vdda
> 3600 || vddio
> 3600 || vddd
> 1980) {
1176 "exceed max voltage vdda %dmV vddio %dmV vddd %dmV\n",
1183 ana_pwr
= snd_soc_read(codec
, SGTL5000_CHIP_ANA_POWER
);
1184 ana_pwr
|= SGTL5000_DAC_STEREO
|
1185 SGTL5000_ADC_STEREO
|
1186 SGTL5000_REFTOP_POWERUP
;
1187 lreg_ctrl
= snd_soc_read(codec
, SGTL5000_CHIP_LINREG_CTRL
);
1189 if (vddio
< 3100 && vdda
< 3100) {
1190 /* enable internal oscillator used for charge pump */
1191 snd_soc_update_bits(codec
, SGTL5000_CHIP_CLK_TOP_CTRL
,
1192 SGTL5000_INT_OSC_EN
,
1193 SGTL5000_INT_OSC_EN
);
1194 /* Enable VDDC charge pump */
1195 ana_pwr
|= SGTL5000_VDDC_CHRGPMP_POWERUP
;
1196 } else if (vddio
>= 3100 && vdda
>= 3100) {
1198 * if vddio and vddd > 3.1v,
1199 * charge pump should be clean before set ana_pwr
1201 snd_soc_update_bits(codec
, SGTL5000_CHIP_ANA_POWER
,
1202 SGTL5000_VDDC_CHRGPMP_POWERUP
, 0);
1204 /* VDDC use VDDIO rail */
1205 lreg_ctrl
|= SGTL5000_VDDC_ASSN_OVRD
;
1206 lreg_ctrl
|= SGTL5000_VDDC_MAN_ASSN_VDDIO
<<
1207 SGTL5000_VDDC_MAN_ASSN_SHIFT
;
1210 snd_soc_write(codec
, SGTL5000_CHIP_LINREG_CTRL
, lreg_ctrl
);
1212 snd_soc_write(codec
, SGTL5000_CHIP_ANA_POWER
, ana_pwr
);
1214 /* set voltage to register */
1215 snd_soc_update_bits(codec
, SGTL5000_CHIP_LINREG_CTRL
,
1216 SGTL5000_LINREG_VDDD_MASK
, 0x8);
1219 * if vddd linear reg has been enabled,
1220 * simple digital supply should be clear to get
1221 * proper VDDD voltage.
1223 if (ana_pwr
& SGTL5000_LINEREG_D_POWERUP
)
1224 snd_soc_update_bits(codec
, SGTL5000_CHIP_ANA_POWER
,
1225 SGTL5000_LINREG_SIMPLE_POWERUP
,
1228 snd_soc_update_bits(codec
, SGTL5000_CHIP_ANA_POWER
,
1229 SGTL5000_LINREG_SIMPLE_POWERUP
|
1230 SGTL5000_STARTUP_POWERUP
,
1234 * set ADC/DAC VAG to vdda / 2,
1235 * should stay in range (0.8v, 1.575v)
1238 if (vag
<= SGTL5000_ANA_GND_BASE
)
1240 else if (vag
>= SGTL5000_ANA_GND_BASE
+ SGTL5000_ANA_GND_STP
*
1241 (SGTL5000_ANA_GND_MASK
>> SGTL5000_ANA_GND_SHIFT
))
1242 vag
= SGTL5000_ANA_GND_MASK
>> SGTL5000_ANA_GND_SHIFT
;
1244 vag
= (vag
- SGTL5000_ANA_GND_BASE
) / SGTL5000_ANA_GND_STP
;
1246 snd_soc_update_bits(codec
, SGTL5000_CHIP_REF_CTRL
,
1247 SGTL5000_ANA_GND_MASK
, vag
<< SGTL5000_ANA_GND_SHIFT
);
1249 /* set line out VAG to vddio / 2, in range (0.8v, 1.675v) */
1251 if (vag
<= SGTL5000_LINE_OUT_GND_BASE
)
1253 else if (vag
>= SGTL5000_LINE_OUT_GND_BASE
+
1254 SGTL5000_LINE_OUT_GND_STP
* SGTL5000_LINE_OUT_GND_MAX
)
1255 vag
= SGTL5000_LINE_OUT_GND_MAX
;
1257 vag
= (vag
- SGTL5000_LINE_OUT_GND_BASE
) /
1258 SGTL5000_LINE_OUT_GND_STP
;
1260 snd_soc_update_bits(codec
, SGTL5000_CHIP_LINE_OUT_CTRL
,
1261 SGTL5000_LINE_OUT_CURRENT_MASK
|
1262 SGTL5000_LINE_OUT_GND_MASK
,
1263 vag
<< SGTL5000_LINE_OUT_GND_SHIFT
|
1264 SGTL5000_LINE_OUT_CURRENT_360u
<<
1265 SGTL5000_LINE_OUT_CURRENT_SHIFT
);
1270 static int sgtl5000_replace_vddd_with_ldo(struct snd_soc_codec
*codec
)
1272 struct sgtl5000_priv
*sgtl5000
= snd_soc_codec_get_drvdata(codec
);
1275 /* set internal ldo to 1.2v */
1276 ret
= ldo_regulator_register(codec
, &ldo_init_data
, LDO_VOLTAGE
);
1279 "Failed to register vddd internal supplies: %d\n", ret
);
1283 sgtl5000
->supplies
[VDDD
].supply
= LDO_CONSUMER_NAME
;
1285 ret
= regulator_bulk_get(codec
->dev
, ARRAY_SIZE(sgtl5000
->supplies
),
1286 sgtl5000
->supplies
);
1289 ldo_regulator_remove(codec
);
1290 dev_err(codec
->dev
, "Failed to request supplies: %d\n", ret
);
1294 dev_info(codec
->dev
, "Using internal LDO instead of VDDD\n");
1298 static int sgtl5000_enable_regulators(struct snd_soc_codec
*codec
)
1304 int external_vddd
= 0;
1305 struct sgtl5000_priv
*sgtl5000
= snd_soc_codec_get_drvdata(codec
);
1307 for (i
= 0; i
< ARRAY_SIZE(sgtl5000
->supplies
); i
++)
1308 sgtl5000
->supplies
[i
].supply
= supply_names
[i
];
1310 ret
= regulator_bulk_get(codec
->dev
, ARRAY_SIZE(sgtl5000
->supplies
),
1311 sgtl5000
->supplies
);
1315 ret
= sgtl5000_replace_vddd_with_ldo(codec
);
1320 ret
= regulator_bulk_enable(ARRAY_SIZE(sgtl5000
->supplies
),
1321 sgtl5000
->supplies
);
1323 goto err_regulator_free
;
1325 /* wait for all power rails bring up */
1329 * workaround for revision 0x11 and later,
1330 * roll back to use internal LDO
1333 ret
= regmap_read(sgtl5000
->regmap
, SGTL5000_CHIP_ID
, ®
);
1335 goto err_regulator_disable
;
1337 rev
= (reg
& SGTL5000_REVID_MASK
) >> SGTL5000_REVID_SHIFT
;
1339 if (external_vddd
&& rev
>= 0x11) {
1340 /* disable all regulator first */
1341 regulator_bulk_disable(ARRAY_SIZE(sgtl5000
->supplies
),
1342 sgtl5000
->supplies
);
1343 /* free VDDD regulator */
1344 regulator_bulk_free(ARRAY_SIZE(sgtl5000
->supplies
),
1345 sgtl5000
->supplies
);
1347 ret
= sgtl5000_replace_vddd_with_ldo(codec
);
1351 ret
= regulator_bulk_enable(ARRAY_SIZE(sgtl5000
->supplies
),
1352 sgtl5000
->supplies
);
1354 goto err_regulator_free
;
1356 /* wait for all power rails bring up */
1362 err_regulator_disable
:
1363 regulator_bulk_disable(ARRAY_SIZE(sgtl5000
->supplies
),
1364 sgtl5000
->supplies
);
1366 regulator_bulk_free(ARRAY_SIZE(sgtl5000
->supplies
),
1367 sgtl5000
->supplies
);
1369 ldo_regulator_remove(codec
);
1374 static int sgtl5000_probe(struct snd_soc_codec
*codec
)
1377 struct sgtl5000_priv
*sgtl5000
= snd_soc_codec_get_drvdata(codec
);
1379 /* setup i2c data ops */
1380 codec
->control_data
= sgtl5000
->regmap
;
1381 ret
= snd_soc_codec_set_cache_io(codec
, 16, 16, SND_SOC_REGMAP
);
1383 dev_err(codec
->dev
, "Failed to set cache I/O: %d\n", ret
);
1387 ret
= sgtl5000_enable_regulators(codec
);
1391 /* power up sgtl5000 */
1392 ret
= sgtl5000_set_power_regs(codec
);
1396 /* enable small pop, introduce 400ms delay in turning off */
1397 snd_soc_update_bits(codec
, SGTL5000_CHIP_REF_CTRL
,
1399 SGTL5000_SMALL_POP
);
1401 /* disable short cut detector */
1402 snd_soc_write(codec
, SGTL5000_CHIP_SHORT_CTRL
, 0);
1405 * set i2s as default input of sound switch
1406 * TODO: add sound switch to control and dapm widge.
1408 snd_soc_write(codec
, SGTL5000_CHIP_SSS_CTRL
,
1409 SGTL5000_DAC_SEL_I2S_IN
<< SGTL5000_DAC_SEL_SHIFT
);
1410 snd_soc_write(codec
, SGTL5000_CHIP_DIG_POWER
,
1411 SGTL5000_ADC_EN
| SGTL5000_DAC_EN
);
1413 /* enable dac volume ramp by default */
1414 snd_soc_write(codec
, SGTL5000_CHIP_ADCDAC_CTRL
,
1415 SGTL5000_DAC_VOL_RAMP_EN
|
1416 SGTL5000_DAC_MUTE_RIGHT
|
1417 SGTL5000_DAC_MUTE_LEFT
);
1419 snd_soc_write(codec
, SGTL5000_CHIP_PAD_STRENGTH
, 0x015f);
1421 snd_soc_write(codec
, SGTL5000_CHIP_ANA_CTRL
,
1422 SGTL5000_HP_ZCD_EN
|
1423 SGTL5000_ADC_ZCD_EN
);
1425 snd_soc_write(codec
, SGTL5000_CHIP_MIC_CTRL
, 2);
1430 * Enable DAP in kcontrol and dapm.
1432 snd_soc_write(codec
, SGTL5000_DAP_CTRL
, 0);
1434 /* leading to standby state */
1435 ret
= sgtl5000_set_bias_level(codec
, SND_SOC_BIAS_STANDBY
);
1442 regulator_bulk_disable(ARRAY_SIZE(sgtl5000
->supplies
),
1443 sgtl5000
->supplies
);
1444 regulator_bulk_free(ARRAY_SIZE(sgtl5000
->supplies
),
1445 sgtl5000
->supplies
);
1446 ldo_regulator_remove(codec
);
1451 static int sgtl5000_remove(struct snd_soc_codec
*codec
)
1453 struct sgtl5000_priv
*sgtl5000
= snd_soc_codec_get_drvdata(codec
);
1455 sgtl5000_set_bias_level(codec
, SND_SOC_BIAS_OFF
);
1457 regulator_bulk_disable(ARRAY_SIZE(sgtl5000
->supplies
),
1458 sgtl5000
->supplies
);
1459 regulator_bulk_free(ARRAY_SIZE(sgtl5000
->supplies
),
1460 sgtl5000
->supplies
);
1461 ldo_regulator_remove(codec
);
1466 static struct snd_soc_codec_driver sgtl5000_driver
= {
1467 .probe
= sgtl5000_probe
,
1468 .remove
= sgtl5000_remove
,
1469 .suspend
= sgtl5000_suspend
,
1470 .resume
= sgtl5000_resume
,
1471 .set_bias_level
= sgtl5000_set_bias_level
,
1472 .controls
= sgtl5000_snd_controls
,
1473 .num_controls
= ARRAY_SIZE(sgtl5000_snd_controls
),
1474 .dapm_widgets
= sgtl5000_dapm_widgets
,
1475 .num_dapm_widgets
= ARRAY_SIZE(sgtl5000_dapm_widgets
),
1476 .dapm_routes
= sgtl5000_dapm_routes
,
1477 .num_dapm_routes
= ARRAY_SIZE(sgtl5000_dapm_routes
),
1480 static const struct regmap_config sgtl5000_regmap
= {
1484 .max_register
= SGTL5000_MAX_REG_OFFSET
,
1485 .volatile_reg
= sgtl5000_volatile
,
1486 .readable_reg
= sgtl5000_readable
,
1488 .cache_type
= REGCACHE_RBTREE
,
1489 .reg_defaults
= sgtl5000_reg_defaults
,
1490 .num_reg_defaults
= ARRAY_SIZE(sgtl5000_reg_defaults
),
1494 * Write all the default values from sgtl5000_reg_defaults[] array into the
1495 * sgtl5000 registers, to make sure we always start with the sane registers
1496 * values as stated in the datasheet.
1498 * Since sgtl5000 does not have a reset line, nor a reset command in software,
1499 * we follow this approach to guarantee we always start from the default values
1500 * and avoid problems like, not being able to probe after an audio playback
1501 * followed by a system reset or a 'reboot' command in Linux
1503 static int sgtl5000_fill_defaults(struct sgtl5000_priv
*sgtl5000
)
1505 int i
, ret
, val
, index
;
1507 for (i
= 0; i
< ARRAY_SIZE(sgtl5000_reg_defaults
); i
++) {
1508 val
= sgtl5000_reg_defaults
[i
].def
;
1509 index
= sgtl5000_reg_defaults
[i
].reg
;
1510 ret
= regmap_write(sgtl5000
->regmap
, index
, val
);
1518 static int sgtl5000_i2c_probe(struct i2c_client
*client
,
1519 const struct i2c_device_id
*id
)
1521 struct sgtl5000_priv
*sgtl5000
;
1524 sgtl5000
= devm_kzalloc(&client
->dev
, sizeof(struct sgtl5000_priv
),
1529 sgtl5000
->regmap
= devm_regmap_init_i2c(client
, &sgtl5000_regmap
);
1530 if (IS_ERR(sgtl5000
->regmap
)) {
1531 ret
= PTR_ERR(sgtl5000
->regmap
);
1532 dev_err(&client
->dev
, "Failed to allocate regmap: %d\n", ret
);
1536 sgtl5000
->mclk
= devm_clk_get(&client
->dev
, NULL
);
1537 if (IS_ERR(sgtl5000
->mclk
)) {
1538 ret
= PTR_ERR(sgtl5000
->mclk
);
1539 dev_err(&client
->dev
, "Failed to get mclock: %d\n", ret
);
1540 /* Defer the probe to see if the clk will be provided later */
1542 return -EPROBE_DEFER
;
1546 ret
= clk_prepare_enable(sgtl5000
->mclk
);
1550 /* read chip information */
1551 ret
= regmap_read(sgtl5000
->regmap
, SGTL5000_CHIP_ID
, ®
);
1555 if (((reg
& SGTL5000_PARTID_MASK
) >> SGTL5000_PARTID_SHIFT
) !=
1556 SGTL5000_PARTID_PART_ID
) {
1557 dev_err(&client
->dev
,
1558 "Device with ID register %x is not a sgtl5000\n", reg
);
1563 rev
= (reg
& SGTL5000_REVID_MASK
) >> SGTL5000_REVID_SHIFT
;
1564 dev_info(&client
->dev
, "sgtl5000 revision 0x%x\n", rev
);
1566 i2c_set_clientdata(client
, sgtl5000
);
1568 /* Ensure sgtl5000 will start with sane register values */
1569 ret
= sgtl5000_fill_defaults(sgtl5000
);
1573 ret
= snd_soc_register_codec(&client
->dev
,
1574 &sgtl5000_driver
, &sgtl5000_dai
, 1);
1581 clk_disable_unprepare(sgtl5000
->mclk
);
1585 static int sgtl5000_i2c_remove(struct i2c_client
*client
)
1587 struct sgtl5000_priv
*sgtl5000
= i2c_get_clientdata(client
);
1589 snd_soc_unregister_codec(&client
->dev
);
1590 clk_disable_unprepare(sgtl5000
->mclk
);
1594 static const struct i2c_device_id sgtl5000_id
[] = {
1599 MODULE_DEVICE_TABLE(i2c
, sgtl5000_id
);
1601 static const struct of_device_id sgtl5000_dt_ids
[] = {
1602 { .compatible
= "fsl,sgtl5000", },
1605 MODULE_DEVICE_TABLE(of
, sgtl5000_dt_ids
);
1607 static struct i2c_driver sgtl5000_i2c_driver
= {
1610 .owner
= THIS_MODULE
,
1611 .of_match_table
= sgtl5000_dt_ids
,
1613 .probe
= sgtl5000_i2c_probe
,
1614 .remove
= sgtl5000_i2c_remove
,
1615 .id_table
= sgtl5000_id
,
1618 module_i2c_driver(sgtl5000_i2c_driver
);
1620 MODULE_DESCRIPTION("Freescale SGTL5000 ALSA SoC Codec Driver");
1621 MODULE_AUTHOR("Zeng Zhaoming <zengzm.kernel@gmail.com>");
1622 MODULE_LICENSE("GPL");