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Code Issues Releases Wiki Activity

Merge remote-tracking branch 'asoc/topic/pcm512x' into asoc-next

This commit is contained in:
Mark Brown 2014-03-12 23:04:08 +00:00
parent 3b93f0598c e97db9abf9
commit 52db65f0a8
7 changed files with 953 additions and 0 deletions
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30
Documentation/devicetree/bindings/sound/pcm512x.txt Normal file
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@ -0,0 +1,30 @@
PCM512x audio CODECs
These devices support both I2C and SPI (configured with pin strapping
on the board).
Required properties:
- compatible : One of "ti,pcm5121" or "ti,pcm5122"
- reg : the I2C address of the device for I2C, the chip select
number for SPI.
- AVDD-supply, DVDD-supply, and CPVDD-supply : power supplies for the
device, as covered in bindings/regulator/regulator.txt
Optional properties:
- clocks : A clock specifier for the clock connected as SCLK. If this
is absent the device will be configured to clock from BCLK.
Example:
pcm5122: pcm5122@4c {
compatible = "ti,pcm5122";
reg = <0x4c>;
AVDD-supply = <&reg_3v3_analog>;
DVDD-supply = <&reg_1v8>;
CPVDD-supply = <&reg_3v3>;
};

17
sound/soc/codecs/Kconfig
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@ -59,6 +59,8 @@ config SND_SOC_ALL_CODECS
select SND_SOC_PCM1681 if I2C
select SND_SOC_PCM1792A if SPI_MASTER
select SND_SOC_PCM3008
select SND_SOC_PCM512x_I2C if I2C
select SND_SOC_PCM512x_SPI if SPI_MASTER
select SND_SOC_RT5631 if I2C
select SND_SOC_RT5640 if I2C
select SND_SOC_SGTL5000 if I2C
@ -313,6 +315,21 @@ config SND_SOC_PCM1792A
config SND_SOC_PCM3008
tristate
config SND_SOC_PCM512x
tristate
config SND_SOC_PCM512x_I2C
tristate "Texas Instruments PCM512x CODECs - I2C"
depends on I2C
select SND_SOC_PCM512x
select REGMAP_I2C
config SND_SOC_PCM512x_SPI
tristate "Texas Instruments PCM512x CODECs - SPI"
depends on SPI_MASTER
select SND_SOC_PCM512x
select REGMAP_SPI
config SND_SOC_RT5631
tristate

6
sound/soc/codecs/Makefile
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@ -46,6 +46,9 @@ snd-soc-hdmi-codec-objs := hdmi.o
snd-soc-pcm1681-objs := pcm1681.o
snd-soc-pcm1792a-codec-objs := pcm1792a.o
snd-soc-pcm3008-objs := pcm3008.o
snd-soc-pcm512x-objs := pcm512x.o
snd-soc-pcm512x-i2c-objs := pcm512x-i2c.o
snd-soc-pcm512x-spi-objs := pcm512x-spi.o
snd-soc-rt5631-objs := rt5631.o
snd-soc-rt5640-objs := rt5640.o
snd-soc-sgtl5000-objs := sgtl5000.o
@ -179,6 +182,9 @@ obj-$(CONFIG_SND_SOC_HDMI_CODEC) += snd-soc-hdmi-codec.o
obj-$(CONFIG_SND_SOC_PCM1681) += snd-soc-pcm1681.o
obj-$(CONFIG_SND_SOC_PCM1792A) += snd-soc-pcm1792a-codec.o
obj-$(CONFIG_SND_SOC_PCM3008) += snd-soc-pcm3008.o
obj-$(CONFIG_SND_SOC_PCM512x) += snd-soc-pcm512x.o
obj-$(CONFIG_SND_SOC_PCM512x_I2C) += snd-soc-pcm512x-i2c.o
obj-$(CONFIG_SND_SOC_PCM512x_SPI) += snd-soc-pcm512x-spi.o
obj-$(CONFIG_SND_SOC_RT5631) += snd-soc-rt5631.o
obj-$(CONFIG_SND_SOC_RT5640) += snd-soc-rt5640.o
obj-$(CONFIG_SND_SOC_SGTL5000) += snd-soc-sgtl5000.o

71
sound/soc/codecs/pcm512x-i2c.c Normal file
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@ -0,0 +1,71 @@
/*
* Driver for the PCM512x CODECs
*
* Author: Mark Brown <broonie@linaro.org>
* Copyright 2014 Linaro Ltd
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/i2c.h>
#include "pcm512x.h"
static int pcm512x_i2c_probe(struct i2c_client *i2c,
const struct i2c_device_id *id)
{
struct regmap *regmap;
regmap = devm_regmap_init_i2c(i2c, &pcm512x_regmap);
if (IS_ERR(regmap))
return PTR_ERR(regmap);
return pcm512x_probe(&i2c->dev, regmap);
}
static int pcm512x_i2c_remove(struct i2c_client *i2c)
{
pcm512x_remove(&i2c->dev);
return 0;
}
static const struct i2c_device_id pcm512x_i2c_id[] = {
{ "pcm5121", },
{ "pcm5122", },
{ }
};
MODULE_DEVICE_TABLE(i2c, pcm512x_i2c_id);
static const struct of_device_id pcm512x_of_match[] = {
{ .compatible = "ti,pcm5121", },
{ .compatible = "ti,pcm5122", },
{ }
};
MODULE_DEVICE_TABLE(of, pcm512x_of_match);
static struct i2c_driver pcm512x_i2c_driver = {
.probe = pcm512x_i2c_probe,
.remove = pcm512x_i2c_remove,
.id_table = pcm512x_i2c_id,
.driver = {
.name = "pcm512x",
.owner = THIS_MODULE,
.of_match_table = pcm512x_of_match,
.pm = &pcm512x_pm_ops,
},
};
module_i2c_driver(pcm512x_i2c_driver);
MODULE_DESCRIPTION("ASoC PCM512x codec driver - I2C");
MODULE_AUTHOR("Mark Brown <broonie@linaro.org>");
MODULE_LICENSE("GPL v2");

69
sound/soc/codecs/pcm512x-spi.c Normal file
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@ -0,0 +1,69 @@
/*
* Driver for the PCM512x CODECs
*
* Author: Mark Brown <broonie@linaro.org>
* Copyright 2014 Linaro Ltd
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/spi/spi.h>
#include "pcm512x.h"
static int pcm512x_spi_probe(struct spi_device *spi)
{
struct regmap *regmap;
int ret;
regmap = devm_regmap_init_spi(spi, &pcm512x_regmap);
if (IS_ERR(regmap)) {
ret = PTR_ERR(regmap);
return ret;
}
return pcm512x_probe(&spi->dev, regmap);
}
static int pcm512x_spi_remove(struct spi_device *spi)
{
pcm512x_remove(&spi->dev);
return 0;
}
static const struct spi_device_id pcm512x_spi_id[] = {
{ "pcm5121", },
{ "pcm5122", },
{ },
};
MODULE_DEVICE_TABLE(spi, pcm512x_spi_id);
static const struct of_device_id pcm512x_of_match[] = {
{ .compatible = "ti,pcm5121", },
{ .compatible = "ti,pcm5122", },
{ }
};
MODULE_DEVICE_TABLE(of, pcm512x_of_match);
static struct spi_driver pcm512x_spi_driver = {
.probe = pcm512x_spi_probe,
.remove = pcm512x_spi_remove,
.id_table = pcm512x_spi_id,
.driver = {
.name = "pcm512x",
.owner = THIS_MODULE,
.of_match_table = pcm512x_of_match,
.pm = &pcm512x_pm_ops,
},
};
module_spi_driver(pcm512x_spi_driver);

589
sound/soc/codecs/pcm512x.c Normal file
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@ -0,0 +1,589 @@
/*
* Driver for the PCM512x CODECs
*
* Author: Mark Brown <broonie@linaro.org>
* Copyright 2014 Linaro Ltd
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/clk.h>
#include <linux/pm_runtime.h>
#include <linux/regmap.h>
#include <linux/regulator/consumer.h>
#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <sound/tlv.h>
#include "pcm512x.h"
#define PCM512x_NUM_SUPPLIES 3
static const char * const pcm512x_supply_names[PCM512x_NUM_SUPPLIES] = {
"AVDD",
"DVDD",
"CPVDD",
};
struct pcm512x_priv {
struct regmap *regmap;
struct clk *sclk;
struct regulator_bulk_data supplies[PCM512x_NUM_SUPPLIES];
struct notifier_block supply_nb[PCM512x_NUM_SUPPLIES];
};
/*
* We can't use the same notifier block for more than one supply and
* there's no way I can see to get from a callback to the caller
* except container_of().
*/
#define PCM512x_REGULATOR_EVENT(n) \
static int pcm512x_regulator_event_##n(struct notifier_block *nb, \
unsigned long event, void *data) \
{ \
struct pcm512x_priv *pcm512x = container_of(nb, struct pcm512x_priv, \
supply_nb[n]); \
if (event & REGULATOR_EVENT_DISABLE) { \
regcache_mark_dirty(pcm512x->regmap); \
regcache_cache_only(pcm512x->regmap, true); \
} \
return 0; \
}
PCM512x_REGULATOR_EVENT(0)
PCM512x_REGULATOR_EVENT(1)
PCM512x_REGULATOR_EVENT(2)
static const struct reg_default pcm512x_reg_defaults[] = {
{ PCM512x_RESET, 0x00 },
{ PCM512x_POWER, 0x00 },
{ PCM512x_MUTE, 0x00 },
{ PCM512x_DSP, 0x00 },
{ PCM512x_PLL_REF, 0x00 },
{ PCM512x_DAC_ROUTING, 0x11 },
{ PCM512x_DSP_PROGRAM, 0x01 },
{ PCM512x_CLKDET, 0x00 },
{ PCM512x_AUTO_MUTE, 0x00 },
{ PCM512x_ERROR_DETECT, 0x00 },
{ PCM512x_DIGITAL_VOLUME_1, 0x00 },
{ PCM512x_DIGITAL_VOLUME_2, 0x30 },
{ PCM512x_DIGITAL_VOLUME_3, 0x30 },
{ PCM512x_DIGITAL_MUTE_1, 0x22 },
{ PCM512x_DIGITAL_MUTE_2, 0x00 },
{ PCM512x_DIGITAL_MUTE_3, 0x07 },
{ PCM512x_OUTPUT_AMPLITUDE, 0x00 },
{ PCM512x_ANALOG_GAIN_CTRL, 0x00 },
{ PCM512x_UNDERVOLTAGE_PROT, 0x00 },
{ PCM512x_ANALOG_MUTE_CTRL, 0x00 },
{ PCM512x_ANALOG_GAIN_BOOST, 0x00 },
{ PCM512x_VCOM_CTRL_1, 0x00 },
{ PCM512x_VCOM_CTRL_2, 0x01 },
};
static bool pcm512x_readable(struct device *dev, unsigned int reg)
{
switch (reg) {
case PCM512x_RESET:
case PCM512x_POWER:
case PCM512x_MUTE:
case PCM512x_PLL_EN:
case PCM512x_SPI_MISO_FUNCTION:
case PCM512x_DSP:
case PCM512x_GPIO_EN:
case PCM512x_BCLK_LRCLK_CFG:
case PCM512x_DSP_GPIO_INPUT:
case PCM512x_MASTER_MODE:
case PCM512x_PLL_REF:
case PCM512x_PLL_COEFF_0:
case PCM512x_PLL_COEFF_1:
case PCM512x_PLL_COEFF_2:
case PCM512x_PLL_COEFF_3:
case PCM512x_PLL_COEFF_4:
case PCM512x_DSP_CLKDIV:
case PCM512x_DAC_CLKDIV:
case PCM512x_NCP_CLKDIV:
case PCM512x_OSR_CLKDIV:
case PCM512x_MASTER_CLKDIV_1:
case PCM512x_MASTER_CLKDIV_2:
case PCM512x_FS_SPEED_MODE:
case PCM512x_IDAC_1:
case PCM512x_IDAC_2:
case PCM512x_ERROR_DETECT:
case PCM512x_I2S_1:
case PCM512x_I2S_2:
case PCM512x_DAC_ROUTING:
case PCM512x_DSP_PROGRAM:
case PCM512x_CLKDET:
case PCM512x_AUTO_MUTE:
case PCM512x_DIGITAL_VOLUME_1:
case PCM512x_DIGITAL_VOLUME_2:
case PCM512x_DIGITAL_VOLUME_3:
case PCM512x_DIGITAL_MUTE_1:
case PCM512x_DIGITAL_MUTE_2:
case PCM512x_DIGITAL_MUTE_3:
case PCM512x_GPIO_OUTPUT_1:
case PCM512x_GPIO_OUTPUT_2:
case PCM512x_GPIO_OUTPUT_3:
case PCM512x_GPIO_OUTPUT_4:
case PCM512x_GPIO_OUTPUT_5:
case PCM512x_GPIO_OUTPUT_6:
case PCM512x_GPIO_CONTROL_1:
case PCM512x_GPIO_CONTROL_2:
case PCM512x_OVERFLOW:
case PCM512x_RATE_DET_1:
case PCM512x_RATE_DET_2:
case PCM512x_RATE_DET_3:
case PCM512x_RATE_DET_4:
case PCM512x_ANALOG_MUTE_DET:
case PCM512x_GPIN:
case PCM512x_DIGITAL_MUTE_DET:
case PCM512x_OUTPUT_AMPLITUDE:
case PCM512x_ANALOG_GAIN_CTRL:
case PCM512x_UNDERVOLTAGE_PROT:
case PCM512x_ANALOG_MUTE_CTRL:
case PCM512x_ANALOG_GAIN_BOOST:
case PCM512x_VCOM_CTRL_1:
case PCM512x_VCOM_CTRL_2:
case PCM512x_CRAM_CTRL:
return true;
default:
/* There are 256 raw register addresses */
return reg < 0xff;
}
}
static bool pcm512x_volatile(struct device *dev, unsigned int reg)
{
switch (reg) {
case PCM512x_PLL_EN:
case PCM512x_OVERFLOW:
case PCM512x_RATE_DET_1:
case PCM512x_RATE_DET_2:
case PCM512x_RATE_DET_3:
case PCM512x_RATE_DET_4:
case PCM512x_ANALOG_MUTE_DET:
case PCM512x_GPIN:
case PCM512x_DIGITAL_MUTE_DET:
case PCM512x_CRAM_CTRL:
return true;
default:
/* There are 256 raw register addresses */
return reg < 0xff;
}
}
static const DECLARE_TLV_DB_SCALE(digital_tlv, -10350, 50, 1);
static const DECLARE_TLV_DB_SCALE(analog_tlv, -600, 600, 0);
static const DECLARE_TLV_DB_SCALE(boost_tlv, 0, 80, 0);
static const char * const pcm512x_dsp_program_texts[] = {
"FIR interpolation with de-emphasis",
"Low latency IIR with de-emphasis",
"Fixed process flow",
"High attenuation with de-emphasis",
"Ringing-less low latency FIR",
};
static const unsigned int pcm512x_dsp_program_values[] = {
1,
2,
3,
5,
7,
};
static SOC_VALUE_ENUM_SINGLE_DECL(pcm512x_dsp_program,
PCM512x_DSP_PROGRAM, 0, 0x1f,
pcm512x_dsp_program_texts,
pcm512x_dsp_program_values);
static const char * const pcm512x_clk_missing_text[] = {
"1s", "2s", "3s", "4s", "5s", "6s", "7s", "8s"
};
static const struct soc_enum pcm512x_clk_missing =
SOC_ENUM_SINGLE(PCM512x_CLKDET, 0, 8, pcm512x_clk_missing_text);
static const char * const pcm512x_autom_text[] = {
"21ms", "106ms", "213ms", "533ms", "1.07s", "2.13s", "5.33s", "10.66s"
};
static const struct soc_enum pcm512x_autom_l =
SOC_ENUM_SINGLE(PCM512x_AUTO_MUTE, PCM512x_ATML_SHIFT, 8,
pcm512x_autom_text);
static const struct soc_enum pcm512x_autom_r =
SOC_ENUM_SINGLE(PCM512x_AUTO_MUTE, PCM512x_ATMR_SHIFT, 8,
pcm512x_autom_text);
static const char * const pcm512x_ramp_rate_text[] = {
"1 sample/update", "2 samples/update", "4 samples/update",
"Immediate"
};
static const struct soc_enum pcm512x_vndf =
SOC_ENUM_SINGLE(PCM512x_DIGITAL_MUTE_1, PCM512x_VNDF_SHIFT, 4,
pcm512x_ramp_rate_text);
static const struct soc_enum pcm512x_vnuf =
SOC_ENUM_SINGLE(PCM512x_DIGITAL_MUTE_1, PCM512x_VNUF_SHIFT, 4,
pcm512x_ramp_rate_text);
static const struct soc_enum pcm512x_vedf =
SOC_ENUM_SINGLE(PCM512x_DIGITAL_MUTE_2, PCM512x_VEDF_SHIFT, 4,
pcm512x_ramp_rate_text);
static const char * const pcm512x_ramp_step_text[] = {
"4dB/step", "2dB/step", "1dB/step", "0.5dB/step"
};
static const struct soc_enum pcm512x_vnds =
SOC_ENUM_SINGLE(PCM512x_DIGITAL_MUTE_1, PCM512x_VNDS_SHIFT, 4,
pcm512x_ramp_step_text);
static const struct soc_enum pcm512x_vnus =
SOC_ENUM_SINGLE(PCM512x_DIGITAL_MUTE_1, PCM512x_VNUS_SHIFT, 4,
pcm512x_ramp_step_text);
static const struct soc_enum pcm512x_veds =
SOC_ENUM_SINGLE(PCM512x_DIGITAL_MUTE_2, PCM512x_VEDS_SHIFT, 4,
pcm512x_ramp_step_text);
static const struct snd_kcontrol_new pcm512x_controls[] = {
SOC_DOUBLE_R_TLV("Playback Digital Volume", PCM512x_DIGITAL_VOLUME_2,
PCM512x_DIGITAL_VOLUME_3, 0, 255, 1, digital_tlv),
SOC_DOUBLE_TLV("Playback Volume", PCM512x_ANALOG_GAIN_CTRL,
PCM512x_LAGN_SHIFT, PCM512x_RAGN_SHIFT, 1, 1, analog_tlv),
SOC_DOUBLE_TLV("Playback Boost Volume", PCM512x_ANALOG_GAIN_BOOST,
PCM512x_AGBL_SHIFT, PCM512x_AGBR_SHIFT, 1, 0, boost_tlv),
SOC_DOUBLE("Playback Digital Switch", PCM512x_MUTE, PCM512x_RQML_SHIFT,
PCM512x_RQMR_SHIFT, 1, 1),
SOC_SINGLE("Deemphasis Switch", PCM512x_DSP, PCM512x_DEMP_SHIFT, 1, 1),
SOC_VALUE_ENUM("DSP Program", pcm512x_dsp_program),
SOC_ENUM("Clock Missing Period", pcm512x_clk_missing),
SOC_ENUM("Auto Mute Time Left", pcm512x_autom_l),
SOC_ENUM("Auto Mute Time Right", pcm512x_autom_r),
SOC_SINGLE("Auto Mute Mono Switch", PCM512x_DIGITAL_MUTE_3,
PCM512x_ACTL_SHIFT, 1, 0),
SOC_DOUBLE("Auto Mute Switch", PCM512x_DIGITAL_MUTE_3, PCM512x_AMLE_SHIFT,
PCM512x_AMLR_SHIFT, 1, 0),
SOC_ENUM("Volume Ramp Down Rate", pcm512x_vndf),
SOC_ENUM("Volume Ramp Down Step", pcm512x_vnds),
SOC_ENUM("Volume Ramp Up Rate", pcm512x_vnuf),
SOC_ENUM("Volume Ramp Up Step", pcm512x_vnus),
SOC_ENUM("Volume Ramp Down Emergency Rate", pcm512x_vedf),
SOC_ENUM("Volume Ramp Down Emergency Step", pcm512x_veds),
};
static const struct snd_soc_dapm_widget pcm512x_dapm_widgets[] = {
SND_SOC_DAPM_DAC("DACL", NULL, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_DAC("DACR", NULL, SND_SOC_NOPM, 0, 0),
SND_SOC_DAPM_OUTPUT("OUTL"),
SND_SOC_DAPM_OUTPUT("OUTR"),
};
static const struct snd_soc_dapm_route pcm512x_dapm_routes[] = {
{ "DACL", NULL, "Playback" },
{ "DACR", NULL, "Playback" },
{ "OUTL", NULL, "DACL" },
{ "OUTR", NULL, "DACR" },
};
static int pcm512x_set_bias_level(struct snd_soc_codec *codec,
enum snd_soc_bias_level level)
{
struct pcm512x_priv *pcm512x = dev_get_drvdata(codec->dev);
int ret;
switch (level) {
case SND_SOC_BIAS_ON:
case SND_SOC_BIAS_PREPARE:
break;
case SND_SOC_BIAS_STANDBY:
ret = regmap_update_bits(pcm512x->regmap, PCM512x_POWER,
PCM512x_RQST, 0);
if (ret != 0) {
dev_err(codec->dev, "Failed to remove standby: %d\n",
ret);
return ret;
}
break;
case SND_SOC_BIAS_OFF:
ret = regmap_update_bits(pcm512x->regmap, PCM512x_POWER,
PCM512x_RQST, PCM512x_RQST);
if (ret != 0) {
dev_err(codec->dev, "Failed to request standby: %d\n",
ret);
return ret;
}
break;
}
codec->dapm.bias_level = level;
return 0;
}
static struct snd_soc_dai_driver pcm512x_dai = {
.name = "pcm512x-hifi",
.playback = {
.stream_name = "Playback",
.channels_min = 2,
.channels_max = 2,
.rates = SNDRV_PCM_RATE_8000_192000,
.formats = SNDRV_PCM_FMTBIT_S16_LE |
SNDRV_PCM_FMTBIT_S24_LE |
SNDRV_PCM_FMTBIT_S32_LE
},
};
static struct snd_soc_codec_driver pcm512x_codec_driver = {
.set_bias_level = pcm512x_set_bias_level,
.idle_bias_off = true,
.controls = pcm512x_controls,
.num_controls = ARRAY_SIZE(pcm512x_controls),
.dapm_widgets = pcm512x_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(pcm512x_dapm_widgets),
.dapm_routes = pcm512x_dapm_routes,
.num_dapm_routes = ARRAY_SIZE(pcm512x_dapm_routes),
};
static const struct regmap_range_cfg pcm512x_range = {
.name = "Pages", .range_min = PCM512x_VIRT_BASE,
.range_max = PCM512x_MAX_REGISTER,
.selector_reg = PCM512x_PAGE,
.selector_mask = 0xff,
.window_start = 0, .window_len = 0x100,
};
const struct regmap_config pcm512x_regmap = {
.reg_bits = 8,
.val_bits = 8,
.readable_reg = pcm512x_readable,
.volatile_reg = pcm512x_volatile,
.ranges = &pcm512x_range,
.num_ranges = 1,
.max_register = PCM512x_MAX_REGISTER,
.reg_defaults = pcm512x_reg_defaults,
.num_reg_defaults = ARRAY_SIZE(pcm512x_reg_defaults),
.cache_type = REGCACHE_RBTREE,
};
EXPORT_SYMBOL_GPL(pcm512x_regmap);
int pcm512x_probe(struct device *dev, struct regmap *regmap)
{
struct pcm512x_priv *pcm512x;
int i, ret;
pcm512x = devm_kzalloc(dev, sizeof(struct pcm512x_priv), GFP_KERNEL);
if (!pcm512x)
return -ENOMEM;
dev_set_drvdata(dev, pcm512x);
pcm512x->regmap = regmap;
for (i = 0; i < ARRAY_SIZE(pcm512x->supplies); i++)
pcm512x->supplies[i].supply = pcm512x_supply_names[i];
ret = devm_regulator_bulk_get(dev, ARRAY_SIZE(pcm512x->supplies),
pcm512x->supplies);
if (ret != 0) {
dev_err(dev, "Failed to get supplies: %d\n", ret);
return ret;
}
pcm512x->supply_nb[0].notifier_call = pcm512x_regulator_event_0;
pcm512x->supply_nb[1].notifier_call = pcm512x_regulator_event_1;
pcm512x->supply_nb[2].notifier_call = pcm512x_regulator_event_2;
for (i = 0; i < ARRAY_SIZE(pcm512x->supplies); i++) {
ret = regulator_register_notifier(pcm512x->supplies[i].consumer,
&pcm512x->supply_nb[i]);
if (ret != 0) {
dev_err(dev,
"Failed to register regulator notifier: %d\n",
ret);
}
}
ret = regulator_bulk_enable(ARRAY_SIZE(pcm512x->supplies),
pcm512x->supplies);
if (ret != 0) {
dev_err(dev, "Failed to enable supplies: %d\n", ret);
return ret;
}
/* Reset the device, verifying I/O in the process for I2C */
ret = regmap_write(regmap, PCM512x_RESET,
PCM512x_RSTM | PCM512x_RSTR);
if (ret != 0) {
dev_err(dev, "Failed to reset device: %d\n", ret);
goto err;
}
ret = regmap_write(regmap, PCM512x_RESET, 0);
if (ret != 0) {
dev_err(dev, "Failed to reset device: %d\n", ret);
goto err;
}
pcm512x->sclk = devm_clk_get(dev, NULL);
if (IS_ERR(pcm512x->sclk)) {
if (PTR_ERR(pcm512x->sclk) == -EPROBE_DEFER)
return -EPROBE_DEFER;
dev_info(dev, "No SCLK, using BCLK: %ld\n",
PTR_ERR(pcm512x->sclk));
/* Disable reporting of missing SCLK as an error */
regmap_update_bits(regmap, PCM512x_ERROR_DETECT,
PCM512x_IDCH, PCM512x_IDCH);
/* Switch PLL input to BCLK */
regmap_update_bits(regmap, PCM512x_PLL_REF,
PCM512x_SREF, PCM512x_SREF);
} else {
ret = clk_prepare_enable(pcm512x->sclk);
if (ret != 0) {
dev_err(dev, "Failed to enable SCLK: %d\n", ret);
return ret;
}
}
/* Default to standby mode */
ret = regmap_update_bits(pcm512x->regmap, PCM512x_POWER,
PCM512x_RQST, PCM512x_RQST);
if (ret != 0) {
dev_err(dev, "Failed to request standby: %d\n",
ret);
goto err_clk;
}
pm_runtime_set_active(dev);
pm_runtime_enable(dev);
pm_runtime_idle(dev);
ret = snd_soc_register_codec(dev, &pcm512x_codec_driver,
&pcm512x_dai, 1);
if (ret != 0) {
dev_err(dev, "Failed to register CODEC: %d\n", ret);
goto err_pm;
}
return 0;
err_pm:
pm_runtime_disable(dev);
err_clk:
if (!IS_ERR(pcm512x->sclk))
clk_disable_unprepare(pcm512x->sclk);
err:
regulator_bulk_disable(ARRAY_SIZE(pcm512x->supplies),
pcm512x->supplies);
return ret;
}
EXPORT_SYMBOL_GPL(pcm512x_probe);
void pcm512x_remove(struct device *dev)
{
struct pcm512x_priv *pcm512x = dev_get_drvdata(dev);
snd_soc_unregister_codec(dev);
pm_runtime_disable(dev);
if (!IS_ERR(pcm512x->sclk))
clk_disable_unprepare(pcm512x->sclk);
regulator_bulk_disable(ARRAY_SIZE(pcm512x->supplies),
pcm512x->supplies);
}
EXPORT_SYMBOL_GPL(pcm512x_remove);
static int pcm512x_suspend(struct device *dev)
{
struct pcm512x_priv *pcm512x = dev_get_drvdata(dev);
int ret;
ret = regmap_update_bits(pcm512x->regmap, PCM512x_POWER,
PCM512x_RQPD, PCM512x_RQPD);
if (ret != 0) {
dev_err(dev, "Failed to request power down: %d\n", ret);
return ret;
}
ret = regulator_bulk_disable(ARRAY_SIZE(pcm512x->supplies),
pcm512x->supplies);
if (ret != 0) {
dev_err(dev, "Failed to disable supplies: %d\n", ret);
return ret;
}
if (!IS_ERR(pcm512x->sclk))
clk_disable_unprepare(pcm512x->sclk);
return 0;
}
static int pcm512x_resume(struct device *dev)
{
struct pcm512x_priv *pcm512x = dev_get_drvdata(dev);
int ret;
if (!IS_ERR(pcm512x->sclk)) {
ret = clk_prepare_enable(pcm512x->sclk);
if (ret != 0) {
dev_err(dev, "Failed to enable SCLK: %d\n", ret);
return ret;
}
}
ret = regulator_bulk_enable(ARRAY_SIZE(pcm512x->supplies),
pcm512x->supplies);
if (ret != 0) {
dev_err(dev, "Failed to enable supplies: %d\n", ret);
return ret;
}
regcache_cache_only(pcm512x->regmap, false);
ret = regcache_sync(pcm512x->regmap);
if (ret != 0) {
dev_err(dev, "Failed to sync cache: %d\n", ret);
return ret;
}
ret = regmap_update_bits(pcm512x->regmap, PCM512x_POWER,
PCM512x_RQPD, 0);
if (ret != 0) {
dev_err(dev, "Failed to remove power down: %d\n", ret);
return ret;
}
return 0;
}
const struct dev_pm_ops pcm512x_pm_ops = {
SET_RUNTIME_PM_OPS(pcm512x_suspend, pcm512x_resume, NULL)
};
EXPORT_SYMBOL_GPL(pcm512x_pm_ops);
MODULE_DESCRIPTION("ASoC PCM512x codec driver");
MODULE_AUTHOR("Mark Brown <broonie@linaro.org>");
MODULE_LICENSE("GPL v2");

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sound/soc/codecs/pcm512x.h Normal file
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/*
* Driver for the PCM512x CODECs
*
* Author: Mark Brown <broonie@linaro.org>
* Copyright 2014 Linaro Ltd
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* version 2 as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but
* WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* General Public License for more details.
*/
#ifndef _SND_SOC_PCM512X
#define _SND_SOC_PCM512X
#include <linux/pm.h>
#include <linux/regmap.h>
#define PCM512x_VIRT_BASE 0x100
#define PCM512x_PAGE_LEN 0x100
#define PCM512x_PAGE_BASE(n) (PCM512x_VIRT_BASE + (PCM512x_PAGE_LEN * n))
#define PCM512x_PAGE 0
#define PCM512x_RESET (PCM512x_PAGE_BASE(0) + 1)
#define PCM512x_POWER (PCM512x_PAGE_BASE(0) + 2)
#define PCM512x_MUTE (PCM512x_PAGE_BASE(0) + 3)
#define PCM512x_PLL_EN (PCM512x_PAGE_BASE(0) + 4)
#define PCM512x_SPI_MISO_FUNCTION (PCM512x_PAGE_BASE(0) + 6)
#define PCM512x_DSP (PCM512x_PAGE_BASE(0) + 7)
#define PCM512x_GPIO_EN (PCM512x_PAGE_BASE(0) + 8)
#define PCM512x_BCLK_LRCLK_CFG (PCM512x_PAGE_BASE(0) + 9)
#define PCM512x_DSP_GPIO_INPUT (PCM512x_PAGE_BASE(0) + 10)
#define PCM512x_MASTER_MODE (PCM512x_PAGE_BASE(0) + 12)
#define PCM512x_PLL_REF (PCM512x_PAGE_BASE(0) + 13)
#define PCM512x_PLL_COEFF_0 (PCM512x_PAGE_BASE(0) + 20)
#define PCM512x_PLL_COEFF_1 (PCM512x_PAGE_BASE(0) + 21)
#define PCM512x_PLL_COEFF_2 (PCM512x_PAGE_BASE(0) + 22)
#define PCM512x_PLL_COEFF_3 (PCM512x_PAGE_BASE(0) + 23)
#define PCM512x_PLL_COEFF_4 (PCM512x_PAGE_BASE(0) + 24)
#define PCM512x_DSP_CLKDIV (PCM512x_PAGE_BASE(0) + 27)
#define PCM512x_DAC_CLKDIV (PCM512x_PAGE_BASE(0) + 28)
#define PCM512x_NCP_CLKDIV (PCM512x_PAGE_BASE(0) + 29)
#define PCM512x_OSR_CLKDIV (PCM512x_PAGE_BASE(0) + 30)
#define PCM512x_MASTER_CLKDIV_1 (PCM512x_PAGE_BASE(0) + 32)
#define PCM512x_MASTER_CLKDIV_2 (PCM512x_PAGE_BASE(0) + 33)
#define PCM512x_FS_SPEED_MODE (PCM512x_PAGE_BASE(0) + 34)
#define PCM512x_IDAC_1 (PCM512x_PAGE_BASE(0) + 35)
#define PCM512x_IDAC_2 (PCM512x_PAGE_BASE(0) + 36)
#define PCM512x_ERROR_DETECT (PCM512x_PAGE_BASE(0) + 37)
#define PCM512x_I2S_1 (PCM512x_PAGE_BASE(0) + 40)
#define PCM512x_I2S_2 (PCM512x_PAGE_BASE(0) + 41)
#define PCM512x_DAC_ROUTING (PCM512x_PAGE_BASE(0) + 42)
#define PCM512x_DSP_PROGRAM (PCM512x_PAGE_BASE(0) + 43)
#define PCM512x_CLKDET (PCM512x_PAGE_BASE(0) + 44)
#define PCM512x_AUTO_MUTE (PCM512x_PAGE_BASE(0) + 59)
#define PCM512x_DIGITAL_VOLUME_1 (PCM512x_PAGE_BASE(0) + 60)
#define PCM512x_DIGITAL_VOLUME_2 (PCM512x_PAGE_BASE(0) + 61)
#define PCM512x_DIGITAL_VOLUME_3 (PCM512x_PAGE_BASE(0) + 62)
#define PCM512x_DIGITAL_MUTE_1 (PCM512x_PAGE_BASE(0) + 63)
#define PCM512x_DIGITAL_MUTE_2 (PCM512x_PAGE_BASE(0) + 64)
#define PCM512x_DIGITAL_MUTE_3 (PCM512x_PAGE_BASE(0) + 65)
#define PCM512x_GPIO_OUTPUT_1 (PCM512x_PAGE_BASE(0) + 80)
#define PCM512x_GPIO_OUTPUT_2 (PCM512x_PAGE_BASE(0) + 81)
#define PCM512x_GPIO_OUTPUT_3 (PCM512x_PAGE_BASE(0) + 82)
#define PCM512x_GPIO_OUTPUT_4 (PCM512x_PAGE_BASE(0) + 83)
#define PCM512x_GPIO_OUTPUT_5 (PCM512x_PAGE_BASE(0) + 84)
#define PCM512x_GPIO_OUTPUT_6 (PCM512x_PAGE_BASE(0) + 85)
#define PCM512x_GPIO_CONTROL_1 (PCM512x_PAGE_BASE(0) + 86)
#define PCM512x_GPIO_CONTROL_2 (PCM512x_PAGE_BASE(0) + 87)
#define PCM512x_OVERFLOW (PCM512x_PAGE_BASE(0) + 90)
#define PCM512x_RATE_DET_1 (PCM512x_PAGE_BASE(0) + 91)
#define PCM512x_RATE_DET_2 (PCM512x_PAGE_BASE(0) + 92)
#define PCM512x_RATE_DET_3 (PCM512x_PAGE_BASE(0) + 93)
#define PCM512x_RATE_DET_4 (PCM512x_PAGE_BASE(0) + 94)
#define PCM512x_ANALOG_MUTE_DET (PCM512x_PAGE_BASE(0) + 108)
#define PCM512x_GPIN (PCM512x_PAGE_BASE(0) + 119)
#define PCM512x_DIGITAL_MUTE_DET (PCM512x_PAGE_BASE(0) + 120)
#define PCM512x_OUTPUT_AMPLITUDE (PCM512x_PAGE_BASE(1) + 1)
#define PCM512x_ANALOG_GAIN_CTRL (PCM512x_PAGE_BASE(1) + 2)
#define PCM512x_UNDERVOLTAGE_PROT (PCM512x_PAGE_BASE(1) + 5)
#define PCM512x_ANALOG_MUTE_CTRL (PCM512x_PAGE_BASE(1) + 6)
#define PCM512x_ANALOG_GAIN_BOOST (PCM512x_PAGE_BASE(1) + 7)
#define PCM512x_VCOM_CTRL_1 (PCM512x_PAGE_BASE(1) + 8)
#define PCM512x_VCOM_CTRL_2 (PCM512x_PAGE_BASE(1) + 9)
#define PCM512x_CRAM_CTRL (PCM512x_PAGE_BASE(44) + 1)
#define PCM512x_MAX_REGISTER (PCM512x_PAGE_BASE(44) + 1)
/* Page 0, Register 1 - reset */
#define PCM512x_RSTR (1 << 0)
#define PCM512x_RSTM (1 << 4)
/* Page 0, Register 2 - power */
#define PCM512x_RQPD (1 << 0)
#define PCM512x_RQPD_SHIFT 0
#define PCM512x_RQST (1 << 4)
#define PCM512x_RQST_SHIFT 4
/* Page 0, Register 3 - mute */
#define PCM512x_RQMR_SHIFT 0
#define PCM512x_RQML_SHIFT 4
/* Page 0, Register 4 - PLL */
#define PCM512x_PLCE (1 << 0)
#define PCM512x_RLCE_SHIFT 0
#define PCM512x_PLCK (1 << 4)
#define PCM512x_PLCK_SHIFT 4
/* Page 0, Register 7 - DSP */
#define PCM512x_SDSL (1 << 0)
#define PCM512x_SDSL_SHIFT 0
#define PCM512x_DEMP (1 << 4)
#define PCM512x_DEMP_SHIFT 4
/* Page 0, Register 13 - PLL reference */
#define PCM512x_SREF (1 << 4)
/* Page 0, Register 37 - Error detection */
#define PCM512x_IPLK (1 << 0)
#define PCM512x_DCAS (1 << 1)
#define PCM512x_IDCM (1 << 2)
#define PCM512x_IDCH (1 << 3)
#define PCM512x_IDSK (1 << 4)
#define PCM512x_IDBK (1 << 5)
#define PCM512x_IDFS (1 << 6)
/* Page 0, Register 42 - DAC routing */
#define PCM512x_AUPR_SHIFT 0
#define PCM512x_AUPL_SHIFT 4
/* Page 0, Register 59 - auto mute */
#define PCM512x_ATMR_SHIFT 0
#define PCM512x_ATML_SHIFT 4
/* Page 0, Register 63 - ramp rates */
#define PCM512x_VNDF_SHIFT 6
#define PCM512x_VNDS_SHIFT 4
#define PCM512x_VNUF_SHIFT 2
#define PCM512x_VNUS_SHIFT 0
/* Page 0, Register 64 - emergency ramp rates */
#define PCM512x_VEDF_SHIFT 6
#define PCM512x_VEDS_SHIFT 4
/* Page 0, Register 65 - Digital mute enables */
#define PCM512x_ACTL_SHIFT 2
#define PCM512x_AMLE_SHIFT 1
#define PCM512x_AMLR_SHIFT 0
/* Page 1, Register 2 - analog volume control */
#define PCM512x_RAGN_SHIFT 0
#define PCM512x_LAGN_SHIFT 4
/* Page 1, Register 7 - analog boost control */
#define PCM512x_AGBR_SHIFT 0
#define PCM512x_AGBL_SHIFT 4
extern const struct dev_pm_ops pcm512x_pm_ops;
extern const struct regmap_config pcm512x_regmap;
int pcm512x_probe(struct device *dev, struct regmap *regmap);
void pcm512x_remove(struct device *dev);
#endif