// SPDX-License-Identifier: GPL-2.0-or-later
/*
* Driver for ADAU1701 SigmaDSP processor
*
* Copyright 2011 Analog Devices Inc.
* Author: Lars-Peter Clausen <[email protected]>
* based on an inital version by Cliff Cai <[email protected]>
*/
#include <linux/module.h>
#include <linux/init.h>
#include <linux/i2c.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/of.h>
#include <linux/gpio/consumer.h>
#include <linux/regulator/consumer.h>
#include <linux/regmap.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <sound/soc.h>
#include <linux/unaligned.h>
#include "sigmadsp.h"
#include "adau1701.h"
#define ADAU1701_SAFELOAD_DATA(i) (0x0810 + (i))
#define ADAU1701_SAFELOAD_ADDR(i) (0x0815 + (i))
#define ADAU1701_DSPCTRL 0x081c
#define ADAU1701_SEROCTL 0x081e
#define ADAU1701_SERICTL 0x081f
#define ADAU1701_AUXNPOW 0x0822
#define ADAU1701_PINCONF_0 0x0820
#define ADAU1701_PINCONF_1 0x0821
#define ADAU1701_AUXNPOW 0x0822
#define ADAU1701_OSCIPOW 0x0826
#define ADAU1701_DACSET 0x0827
#define ADAU1701_MAX_REGISTER 0x0828
#define ADAU1701_DSPCTRL_CR (1 << 2)
#define ADAU1701_DSPCTRL_DAM (1 << 3)
#define ADAU1701_DSPCTRL_ADM (1 << 4)
#define ADAU1701_DSPCTRL_IST (1 << 5)
#define ADAU1701_DSPCTRL_SR_48 0x00
#define ADAU1701_DSPCTRL_SR_96 0x01
#define ADAU1701_DSPCTRL_SR_192 0x02
#define ADAU1701_DSPCTRL_SR_MASK 0x03
#define ADAU1701_SEROCTL_INV_LRCLK 0x2000
#define ADAU1701_SEROCTL_INV_BCLK 0x1000
#define ADAU1701_SEROCTL_MASTER 0x0800
#define ADAU1701_SEROCTL_OBF16 0x0000
#define ADAU1701_SEROCTL_OBF8 0x0200
#define ADAU1701_SEROCTL_OBF4 0x0400
#define ADAU1701_SEROCTL_OBF2 0x0600
#define ADAU1701_SEROCTL_OBF_MASK 0x0600
#define ADAU1701_SEROCTL_OLF1024 0x0000
#define ADAU1701_SEROCTL_OLF512 0x0080
#define ADAU1701_SEROCTL_OLF256 0x0100
#define ADAU1701_SEROCTL_OLF_MASK 0x0180
#define ADAU1701_SEROCTL_MSB_DEALY1 0x0000
#define ADAU1701_SEROCTL_MSB_DEALY0 0x0004
#define ADAU1701_SEROCTL_MSB_DEALY8 0x0008
#define ADAU1701_SEROCTL_MSB_DEALY12 0x000c
#define ADAU1701_SEROCTL_MSB_DEALY16 0x0010
#define ADAU1701_SEROCTL_MSB_DEALY_MASK 0x001c
#define ADAU1701_SEROCTL_WORD_LEN_24 0x0000
#define ADAU1701_SEROCTL_WORD_LEN_20 0x0001
#define ADAU1701_SEROCTL_WORD_LEN_16 0x0002
#define ADAU1701_SEROCTL_WORD_LEN_MASK 0x0003
#define ADAU1701_AUXNPOW_VBPD 0x40
#define ADAU1701_AUXNPOW_VRPD 0x20
#define ADAU1701_SERICTL_I2S 0
#define ADAU1701_SERICTL_LEFTJ 1
#define ADAU1701_SERICTL_TDM 2
#define ADAU1701_SERICTL_RIGHTJ_24 3
#define ADAU1701_SERICTL_RIGHTJ_20 4
#define ADAU1701_SERICTL_RIGHTJ_18 5
#define ADAU1701_SERICTL_RIGHTJ_16 6
#define ADAU1701_SERICTL_MODE_MASK 7
#define ADAU1701_SERICTL_INV_BCLK BIT(3)
#define ADAU1701_SERICTL_INV_LRCLK BIT(4)
#define ADAU1701_OSCIPOW_OPD 0x04
#define ADAU1701_DACSET_DACINIT 1
#define ADAU1707_CLKDIV_UNSET (-1U)
#define ADAU1701_FIRMWARE "adau1701.bin"
static const char * const supply_names[] = {
"dvdd", "avdd"
};
struct adau1701 {
struct gpio_desc *gpio_nreset;
struct gpio_descs *gpio_pll_mode;
unsigned int dai_fmt;
unsigned int pll_clkdiv;
unsigned int sysclk;
struct regmap *regmap;
struct i2c_client *client;
u8 pin_config[12];
struct sigmadsp *sigmadsp;
struct regulator_bulk_data supplies[ARRAY_SIZE(supply_names)];
};
static const struct snd_kcontrol_new adau1701_controls[] = {
SOC_SINGLE("Master Capture Switch", ADAU1701_DSPCTRL, 4, 1, 0),
};
static const struct snd_soc_dapm_widget adau1701_dapm_widgets[] = {
SND_SOC_DAPM_DAC("DAC0", "Playback", ADAU1701_AUXNPOW, 3, 1),
SND_SOC_DAPM_DAC("DAC1", "Playback", ADAU1701_AUXNPOW, 2, 1),
SND_SOC_DAPM_DAC("DAC2", "Playback", ADAU1701_AUXNPOW, 1, 1),
SND_SOC_DAPM_DAC("DAC3", "Playback", ADAU1701_AUXNPOW, 0, 1),
SND_SOC_DAPM_ADC("ADC", "Capture", ADAU1701_AUXNPOW, 7, 1),
SND_SOC_DAPM_OUTPUT("OUT0"),
SND_SOC_DAPM_OUTPUT("OUT1"),
SND_SOC_DAPM_OUTPUT("OUT2"),
SND_SOC_DAPM_OUTPUT("OUT3"),
SND_SOC_DAPM_INPUT("IN0"),
SND_SOC_DAPM_INPUT("IN1"),
};
static const struct snd_soc_dapm_route adau1701_dapm_routes[] = {
{ "OUT0", NULL, "DAC0" },
{ "OUT1", NULL, "DAC1" },
{ "OUT2", NULL, "DAC2" },
{ "OUT3", NULL, "DAC3" },
{ "ADC", NULL, "IN0" },
{ "ADC", NULL, "IN1" },
};
static unsigned int adau1701_register_size(struct device *dev,
unsigned int reg)
{
switch (reg) {
case ADAU1701_PINCONF_0:
case ADAU1701_PINCONF_1:
return 3;
case ADAU1701_DSPCTRL:
case ADAU1701_SEROCTL:
case ADAU1701_AUXNPOW:
case ADAU1701_OSCIPOW:
case ADAU1701_DACSET:
return 2;
case ADAU1701_SERICTL:
return 1;
}
dev_err(dev, "Unsupported register address: %d\n", reg);
return 0;
}
static bool adau1701_volatile_reg(struct device *dev, unsigned int reg)
{
switch (reg) {
case ADAU1701_DACSET:
case ADAU1701_DSPCTRL:
return true;
default:
return false;
}
}
static int adau1701_reg_write(void *context, unsigned int reg,
unsigned int value)
{
struct i2c_client *client = context;
unsigned int i;
unsigned int size;
uint8_t buf[5];
int ret;
size = adau1701_register_size(&client->dev, reg);
if (size == 0)
return -EINVAL;
buf[0] = reg >> 8;
buf[1] = reg & 0xff;
for (i = size + 1; i >= 2; --i) {
buf[i] = value;
value >>= 8;
}
ret = i2c_master_send(client, buf, size + 2);
if (ret == size + 2)
return 0;
else if (ret < 0)
return ret;
else
return -EIO;
}
static int adau1701_reg_read(void *context, unsigned int reg,
unsigned int *value)
{
int ret;
unsigned int i;
unsigned int size;
uint8_t send_buf[2], recv_buf[3];
struct i2c_client *client = context;
struct i2c_msg msgs[2];
size = adau1701_register_size(&client->dev, reg);
if (size == 0)
return -EINVAL;
send_buf[0] = reg >> 8;
send_buf[1] = reg & 0xff;
msgs[0].addr = client->addr;
msgs[0].len = sizeof(send_buf);
msgs[0].buf = send_buf;
msgs[0].flags = 0;
msgs[1].addr = client->addr;
msgs[1].len = size;
msgs[1].buf = recv_buf;
msgs[1].flags = I2C_M_RD;
ret = i2c_transfer(client->adapter, msgs, ARRAY_SIZE(msgs));
if (ret < 0)
return ret;
else if (ret != ARRAY_SIZE(msgs))
return -EIO;
*value = 0;
for (i = 0; i < size; i++) {
*value <<= 8;
*value |= recv_buf[i];
}
return 0;
}
static int adau1701_safeload(struct sigmadsp *sigmadsp, unsigned int addr,
const uint8_t bytes[], size_t len)
{
struct i2c_client *client = to_i2c_client(sigmadsp->dev);
struct adau1701 *adau1701 = i2c_get_clientdata(client);
unsigned int val;
unsigned int i;
uint8_t buf[10];
int ret;
ret = regmap_read(adau1701->regmap, ADAU1701_DSPCTRL, &val);
if (ret)
return ret;
if (val & ADAU1701_DSPCTRL_IST)
msleep(50);
for (i = 0; i < len / 4; i++) {
put_unaligned_le16(ADAU1701_SAFELOAD_DATA(i), buf);
buf[2] = 0x00;
memcpy(buf + 3, bytes + i * 4, 4);
ret = i2c_master_send(client, buf, 7);
if (ret < 0)
return ret;
else if (ret != 7)
return -EIO;
put_unaligned_le16(ADAU1701_SAFELOAD_ADDR(i), buf);
put_unaligned_le16(addr + i, buf + 2);
ret = i2c_master_send(client, buf, 4);
if (ret < 0)
return ret;
else if (ret != 4)
return -EIO;
}
return regmap_update_bits(adau1701->regmap, ADAU1701_DSPCTRL,
ADAU1701_DSPCTRL_IST, ADAU1701_DSPCTRL_IST);
}
static const struct sigmadsp_ops adau1701_sigmadsp_ops = {
.safeload = adau1701_safeload,
};
static int adau1701_reset(struct snd_soc_component *component, unsigned int clkdiv,
unsigned int rate)
{
struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
int ret;
DECLARE_BITMAP(values, 2);
sigmadsp_reset(adau1701->sigmadsp);
if (clkdiv != ADAU1707_CLKDIV_UNSET && adau1701->gpio_pll_mode) {
switch (clkdiv) {
case 64:
__assign_bit(0, values, 0);
__assign_bit(1, values, 0);
break;
case 256:
__assign_bit(0, values, 0);
__assign_bit(1, values, 1);
break;
case 384:
__assign_bit(0, values, 1);
__assign_bit(1, values, 0);
break;
case 0: /* fallback */
case 512:
__assign_bit(0, values, 1);
__assign_bit(1, values, 1);
break;
}
gpiod_set_array_value_cansleep(adau1701->gpio_pll_mode->ndescs,
adau1701->gpio_pll_mode->desc, adau1701->gpio_pll_mode->info,
values);
}
adau1701->pll_clkdiv = clkdiv;
if (adau1701->gpio_nreset) {
gpiod_set_value_cansleep(adau1701->gpio_nreset, 0);
/* minimum reset time is 20ns */
udelay(1);
gpiod_set_value_cansleep(adau1701->gpio_nreset, 1);
/* power-up time may be as long as 85ms */
mdelay(85);
}
/*
* Postpone the firmware download to a point in time when we
* know the correct PLL setup
*/
if (clkdiv != ADAU1707_CLKDIV_UNSET) {
ret = sigmadsp_setup(adau1701->sigmadsp, rate);
if (ret) {
dev_warn(component->dev, "Failed to load firmware\n");
return ret;
}
}
regmap_write(adau1701->regmap, ADAU1701_DACSET, ADAU1701_DACSET_DACINIT);
regmap_write(adau1701->regmap, ADAU1701_DSPCTRL, ADAU1701_DSPCTRL_CR);
regcache_mark_dirty(adau1701->regmap);
regcache_sync(adau1701->regmap);
return 0;
}
static int adau1701_set_capture_pcm_format(struct snd_soc_component *component,
struct snd_pcm_hw_params *params)
{
struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
unsigned int mask = ADAU1701_SEROCTL_WORD_LEN_MASK;
unsigned int val;
switch (params_width(params)) {
case 16:
val = ADAU1701_SEROCTL_WORD_LEN_16;
break;
case 20:
val = ADAU1701_SEROCTL_WORD_LEN_20;
break;
case 24:
val = ADAU1701_SEROCTL_WORD_LEN_24;
break;
default:
return -EINVAL;
}
if (adau1701->dai_fmt == SND_SOC_DAIFMT_RIGHT_J) {
switch (params_width(params)) {
case 16:
val |= ADAU1701_SEROCTL_MSB_DEALY16;
break;
case 20:
val |= ADAU1701_SEROCTL_MSB_DEALY12;
break;
case 24:
val |= ADAU1701_SEROCTL_MSB_DEALY8;
break;
}
mask |= ADAU1701_SEROCTL_MSB_DEALY_MASK;
}
regmap_update_bits(adau1701->regmap, ADAU1701_SEROCTL, mask, val);
return 0;
}
static int adau1701_set_playback_pcm_format(struct snd_soc_component *component,
struct snd_pcm_hw_params *params)
{
struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
unsigned int val;
if (adau1701->dai_fmt != SND_SOC_DAIFMT_RIGHT_J)
return 0;
switch (params_width(params)) {
case 16:
val = ADAU1701_SERICTL_RIGHTJ_16;
break;
case 20:
val = ADAU1701_SERICTL_RIGHTJ_20;
break;
case 24:
val = ADAU1701_SERICTL_RIGHTJ_24;
break;
default:
return -EINVAL;
}
regmap_update_bits(adau1701->regmap, ADAU1701_SERICTL,
ADAU1701_SERICTL_MODE_MASK, val);
return 0;
}
static int adau1701_hw_params(struct snd_pcm_substream *substream,
struct snd_pcm_hw_params *params, struct snd_soc_dai *dai)
{
struct snd_soc_component *component = dai->component;
struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
unsigned int clkdiv = adau1701->sysclk / params_rate(params);
unsigned int val;
int ret;
/*
* If the mclk/lrclk ratio changes, the chip needs updated PLL
* mode GPIO settings, and a full reset cycle, including a new
* firmware upload.
*/
if (clkdiv != adau1701->pll_clkdiv) {
ret = adau1701_reset(component, clkdiv, params_rate(params));
if (ret < 0)
return ret;
}
switch (params_rate(params)) {
case 192000:
val = ADAU1701_DSPCTRL_SR_192;
break;
case 96000:
val = ADAU1701_DSPCTRL_SR_96;
break;
case 48000:
val = ADAU1701_DSPCTRL_SR_48;
break;
default:
return -EINVAL;
}
regmap_update_bits(adau1701->regmap, ADAU1701_DSPCTRL,
ADAU1701_DSPCTRL_SR_MASK, val);
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
return adau1701_set_playback_pcm_format(component, params);
else
return adau1701_set_capture_pcm_format(component, params);
}
static int adau1701_set_dai_fmt(struct snd_soc_dai *codec_dai,
unsigned int fmt)
{
struct snd_soc_component *component = codec_dai->component;
struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
unsigned int serictl = 0x00, seroctl = 0x00;
bool invert_lrclk;
switch (fmt & SND_SOC_DAIFMT_CLOCK_PROVIDER_MASK) {
case SND_SOC_DAIFMT_CBP_CFP:
/* master, 64-bits per sample, 1 frame per sample */
seroctl |= ADAU1701_SEROCTL_MASTER | ADAU1701_SEROCTL_OBF16
| ADAU1701_SEROCTL_OLF1024;
break;
case SND_SOC_DAIFMT_CBC_CFC:
break;
default:
return -EINVAL;
}
/* clock inversion */
switch (fmt & SND_SOC_DAIFMT_INV_MASK) {
case SND_SOC_DAIFMT_NB_NF:
invert_lrclk = false;
break;
case SND_SOC_DAIFMT_NB_IF:
invert_lrclk = true;
break;
case SND_SOC_DAIFMT_IB_NF:
invert_lrclk = false;
serictl |= ADAU1701_SERICTL_INV_BCLK;
seroctl |= ADAU1701_SEROCTL_INV_BCLK;
break;
case SND_SOC_DAIFMT_IB_IF:
invert_lrclk = true;
serictl |= ADAU1701_SERICTL_INV_BCLK;
seroctl |= ADAU1701_SEROCTL_INV_BCLK;
break;
default:
return -EINVAL;
}
switch (fmt & SND_SOC_DAIFMT_FORMAT_MASK) {
case SND_SOC_DAIFMT_I2S:
break;
case SND_SOC_DAIFMT_LEFT_J:
serictl |= ADAU1701_SERICTL_LEFTJ;
seroctl |= ADAU1701_SEROCTL_MSB_DEALY0;
invert_lrclk = !invert_lrclk;
break;
case SND_SOC_DAIFMT_RIGHT_J:
serictl |= ADAU1701_SERICTL_RIGHTJ_24;
seroctl |= ADAU1701_SEROCTL_MSB_DEALY8;
invert_lrclk = !invert_lrclk;
break;
default:
return -EINVAL;
}
if (invert_lrclk) {
seroctl |= ADAU1701_SEROCTL_INV_LRCLK;
serictl |= ADAU1701_SERICTL_INV_LRCLK;
}
adau1701->dai_fmt = fmt & SND_SOC_DAIFMT_FORMAT_MASK;
regmap_write(adau1701->regmap, ADAU1701_SERICTL, serictl);
regmap_update_bits(adau1701->regmap, ADAU1701_SEROCTL,
~ADAU1701_SEROCTL_WORD_LEN_MASK, seroctl);
return 0;
}
static int adau1701_set_bias_level(struct snd_soc_component *component,
enum snd_soc_bias_level level)
{
unsigned int mask = ADAU1701_AUXNPOW_VBPD | ADAU1701_AUXNPOW_VRPD;
struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
switch (level) {
case SND_SOC_BIAS_ON:
break;
case SND_SOC_BIAS_PREPARE:
break;
case SND_SOC_BIAS_STANDBY:
/* Enable VREF and VREF buffer */
regmap_update_bits(adau1701->regmap,
ADAU1701_AUXNPOW, mask, 0x00);
break;
case SND_SOC_BIAS_OFF:
/* Disable VREF and VREF buffer */
regmap_update_bits(adau1701->regmap,
ADAU1701_AUXNPOW, mask, mask);
break;
}
return 0;
}
static int adau1701_mute_stream(struct snd_soc_dai *dai, int mute, int direction)
{
struct snd_soc_component *component = dai->component;
unsigned int mask = ADAU1701_DSPCTRL_DAM;
struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
unsigned int val;
if (mute)
val = 0;
else
val = mask;
regmap_update_bits(adau1701->regmap, ADAU1701_DSPCTRL, mask, val);
return 0;
}
static int adau1701_set_sysclk(struct snd_soc_component *component, int clk_id,
int source, unsigned int freq, int dir)
{
unsigned int val;
struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
switch (clk_id) {
case ADAU1701_CLK_SRC_OSC:
val = 0x0;
break;
case ADAU1701_CLK_SRC_MCLK:
val = ADAU1701_OSCIPOW_OPD;
break;
default:
return -EINVAL;
}
regmap_update_bits(adau1701->regmap, ADAU1701_OSCIPOW,
ADAU1701_OSCIPOW_OPD, val);
adau1701->sysclk = freq;
return 0;
}
static int adau1701_startup(struct snd_pcm_substream *substream,
struct snd_soc_dai *dai)
{
struct adau1701 *adau1701 = snd_soc_component_get_drvdata(dai->component);
return sigmadsp_restrict_params(adau1701->sigmadsp, substream);
}
#define ADAU1701_RATES (SNDRV_PCM_RATE_48000 | SNDRV_PCM_RATE_96000 | \
SNDRV_PCM_RATE_192000)
#define ADAU1701_FORMATS (SNDRV_PCM_FMTBIT_S16_LE | SNDRV_PCM_FMTBIT_S20_3LE |\
SNDRV_PCM_FMTBIT_S24_LE)
static const struct snd_soc_dai_ops adau1701_dai_ops = {
.set_fmt = adau1701_set_dai_fmt,
.hw_params = adau1701_hw_params,
.mute_stream = adau1701_mute_stream,
.startup = adau1701_startup,
.no_capture_mute = 1,
};
static struct snd_soc_dai_driver adau1701_dai = {
.name = "adau1701",
.playback = {
.stream_name = "Playback",
.channels_min = 2,
.channels_max = 8,
.rates = ADAU1701_RATES,
.formats = ADAU1701_FORMATS,
},
.capture = {
.stream_name = "Capture",
.channels_min = 2,
.channels_max = 8,
.rates = ADAU1701_RATES,
.formats = ADAU1701_FORMATS,
},
.ops = &adau1701_dai_ops,
.symmetric_rate = 1,
};
#ifdef CONFIG_OF
static const struct of_device_id adau1701_dt_ids[] = {
{ .compatible = "adi,adau1701", },
{ }
};
MODULE_DEVICE_TABLE(of, adau1701_dt_ids);
#endif
static int adau1701_probe(struct snd_soc_component *component)
{
int i, ret;
unsigned int val;
struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
ret = sigmadsp_attach(adau1701->sigmadsp, component);
if (ret)
return ret;
ret = regulator_bulk_enable(ARRAY_SIZE(adau1701->supplies),
adau1701->supplies);
if (ret < 0) {
dev_err(component->dev, "Failed to enable regulators: %d\n", ret);
return ret;
}
/*
* Let the pll_clkdiv variable default to something that won't happen
* at runtime. That way, we can postpone the firmware download from
* adau1701_reset() to a point in time when we know the correct PLL
* mode parameters.
*/
adau1701->pll_clkdiv = ADAU1707_CLKDIV_UNSET;
/* initalize with pre-configured pll mode settings */
ret = adau1701_reset(component, adau1701->pll_clkdiv, 0);
if (ret < 0)
goto exit_regulators_disable;
/* set up pin config */
val = 0;
for (i = 0; i < 6; i++)
val |= adau1701->pin_config[i] << (i * 4);
regmap_write(adau1701->regmap, ADAU1701_PINCONF_0, val);
val = 0;
for (i = 0; i < 6; i++)
val |= adau1701->pin_config[i + 6] << (i * 4);
regmap_write(adau1701->regmap, ADAU1701_PINCONF_1, val);
return 0;
exit_regulators_disable:
regulator_bulk_disable(ARRAY_SIZE(adau1701->supplies), adau1701->supplies);
return ret;
}
static void adau1701_remove(struct snd_soc_component *component)
{
struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
if (adau1701->gpio_nreset)
gpiod_set_value_cansleep(adau1701->gpio_nreset, 0);
regulator_bulk_disable(ARRAY_SIZE(adau1701->supplies), adau1701->supplies);
}
#ifdef CONFIG_PM
static int adau1701_suspend(struct snd_soc_component *component)
{
struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
regulator_bulk_disable(ARRAY_SIZE(adau1701->supplies),
adau1701->supplies);
return 0;
}
static int adau1701_resume(struct snd_soc_component *component)
{
struct adau1701 *adau1701 = snd_soc_component_get_drvdata(component);
int ret;
ret = regulator_bulk_enable(ARRAY_SIZE(adau1701->supplies),
adau1701->supplies);
if (ret < 0) {
dev_err(component->dev, "Failed to enable regulators: %d\n", ret);
return ret;
}
return adau1701_reset(component, adau1701->pll_clkdiv, 0);
}
#else
#define adau1701_resume NULL
#define adau1701_suspend NULL
#endif /* CONFIG_PM */
static const struct snd_soc_component_driver adau1701_component_drv = {
.probe = adau1701_probe,
.remove = adau1701_remove,
.resume = adau1701_resume,
.suspend = adau1701_suspend,
.set_bias_level = adau1701_set_bias_level,
.controls = adau1701_controls,
.num_controls = ARRAY_SIZE(adau1701_controls),
.dapm_widgets = adau1701_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(adau1701_dapm_widgets),
.dapm_routes = adau1701_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(adau1701_dapm_routes),
.set_sysclk = adau1701_set_sysclk,
.use_pmdown_time = 1,
.endianness = 1,
};
static const struct regmap_config adau1701_regmap = {
.reg_bits = 16,
.val_bits = 32,
.max_register = ADAU1701_MAX_REGISTER,
.cache_type = REGCACHE_MAPLE,
.volatile_reg = adau1701_volatile_reg,
.reg_write = adau1701_reg_write,
.reg_read = adau1701_reg_read,
};
static int adau1701_i2c_probe(struct i2c_client *client)
{
struct adau1701 *adau1701;
struct device *dev = &client->dev;
int ret, i;
adau1701 = devm_kzalloc(dev, sizeof(*adau1701), GFP_KERNEL);
if (!adau1701)
return -ENOMEM;
for (i = 0; i < ARRAY_SIZE(supply_names); i++)
adau1701->supplies[i].supply = supply_names[i];
ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(adau1701->supplies),
adau1701->supplies);
if (ret < 0) {
dev_err(dev, "Failed to get regulators: %d\n", ret);
return ret;
}
ret = regulator_bulk_enable(ARRAY_SIZE(adau1701->supplies),
adau1701->supplies);
if (ret < 0) {
dev_err(dev, "Failed to enable regulators: %d\n", ret);
return ret;
}
adau1701->client = client;
adau1701->regmap = devm_regmap_init(dev, NULL, client,
&adau1701_regmap);
if (IS_ERR(adau1701->regmap)) {
ret = PTR_ERR(adau1701->regmap);
goto exit_regulators_disable;
}
if (dev->of_node) {
of_property_read_u32(dev->of_node, "adi,pll-clkdiv",
&adau1701->pll_clkdiv);
of_property_read_u8_array(dev->of_node, "adi,pin-config",
adau1701->pin_config,
ARRAY_SIZE(adau1701->pin_config));
}
adau1701->gpio_nreset = devm_gpiod_get_optional(dev, "reset", GPIOD_IN);
if (IS_ERR(adau1701->gpio_nreset)) {
ret = PTR_ERR(adau1701->gpio_nreset);
goto exit_regulators_disable;
}
adau1701->gpio_pll_mode = devm_gpiod_get_array_optional(dev, "adi,pll-mode", GPIOD_OUT_LOW);
if (IS_ERR(adau1701->gpio_pll_mode)) {
ret = PTR_ERR(adau1701->gpio_pll_mode);
goto exit_regulators_disable;
}
i2c_set_clientdata(client, adau1701);
adau1701->sigmadsp = devm_sigmadsp_init_i2c(client,
&adau1701_sigmadsp_ops, ADAU1701_FIRMWARE);
if (IS_ERR(adau1701->sigmadsp)) {
ret = PTR_ERR(adau1701->sigmadsp);
goto exit_regulators_disable;
}
ret = devm_snd_soc_register_component(&client->dev,
&adau1701_component_drv,
&adau1701_dai, 1);
exit_regulators_disable:
regulator_bulk_disable(ARRAY_SIZE(adau1701->supplies), adau1701->supplies);
return ret;
}
static const struct i2c_device_id adau1701_i2c_id[] = {
{ "adau1401" },
{ "adau1401a" },
{ "adau1701" },
{ "adau1702" },
{ }
};
MODULE_DEVICE_TABLE(i2c, adau1701_i2c_id);
static struct i2c_driver adau1701_i2c_driver = {
.driver = {
.name = "adau1701",
.of_match_table = of_match_ptr(adau1701_dt_ids),
},
.probe = adau1701_i2c_probe,
.id_table = adau1701_i2c_id,
};
module_i2c_driver(adau1701_i2c_driver);
MODULE_DESCRIPTION("ASoC ADAU1701 SigmaDSP driver");
MODULE_AUTHOR("Cliff Cai <[email protected]>");
MODULE_AUTHOR("Lars-Peter Clausen <[email protected]>");
MODULE_LICENSE("GPL");
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