Commit dab464b6 authored by Lars-Peter Clausen's avatar Lars-Peter Clausen Committed by Mark Brown
Browse files

ASoC: Add ADAU1361/ADAU1761 audio CODEC support 



This patch adds support for the Analog Devices ADAU1361 and ADAU1761 CODECs.
The device is a a low-power, 24-bit stereo audio CODEC with multiple analog
input and outputs, one digital microphone input and an I2S interface. The device
can be controlled either via I2C or SPI. The main difference between the two
variants is that the ADAU1761 has a built-in SigmaDSP, while the ADAU1361 has
not.

Signed-off-by: default avatarLars-Peter Clausen <lars@metafoo.de>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent 4101866c

include/linux/platform_data/adau17x1.h

+67 −0
Original line number Diff line number Diff line
@@ -20,4 +20,71 @@ enum adau17x1_micbias_voltage { 
	ADAU17X1_MICBIAS_0_65_AVDD = 1,

};



/**

 * enum adau1761_digmic_jackdet_pin_mode - Configuration of the JACKDET/MICIN pin

 * @ADAU1761_DIGMIC_JACKDET_PIN_MODE_NONE: Disable the pin

 * @ADAU1761_DIGMIC_JACKDET_PIN_MODE_DIGMIC: Configure the pin for usage as

 *   digital microphone input.

 * @ADAU1761_DIGMIC_JACKDET_PIN_MODE_JACKDETECT: Configure the pin for jack

 *  insertion detection.

 */

enum adau1761_digmic_jackdet_pin_mode {

	ADAU1761_DIGMIC_JACKDET_PIN_MODE_NONE,

	ADAU1761_DIGMIC_JACKDET_PIN_MODE_DIGMIC,

	ADAU1761_DIGMIC_JACKDET_PIN_MODE_JACKDETECT,

};



/**

 * adau1761_jackdetect_debounce_time - Jack insertion detection debounce time

 * @ADAU1761_JACKDETECT_DEBOUNCE_5MS: 5 milliseconds

 * @ADAU1761_JACKDETECT_DEBOUNCE_10MS: 10 milliseconds

 * @ADAU1761_JACKDETECT_DEBOUNCE_20MS: 20 milliseconds

 * @ADAU1761_JACKDETECT_DEBOUNCE_40MS: 40 milliseconds

 */

enum adau1761_jackdetect_debounce_time {

	ADAU1761_JACKDETECT_DEBOUNCE_5MS = 0,

	ADAU1761_JACKDETECT_DEBOUNCE_10MS = 1,

	ADAU1761_JACKDETECT_DEBOUNCE_20MS = 2,

	ADAU1761_JACKDETECT_DEBOUNCE_40MS = 3,

};



/**

 * enum adau1761_output_mode - Output mode configuration

 * @ADAU1761_OUTPUT_MODE_HEADPHONE: Headphone output

 * @ADAU1761_OUTPUT_MODE_HEADPHONE_CAPLESS: Capless headphone output

 * @ADAU1761_OUTPUT_MODE_LINE: Line output

 */

enum adau1761_output_mode {

	ADAU1761_OUTPUT_MODE_HEADPHONE,

	ADAU1761_OUTPUT_MODE_HEADPHONE_CAPLESS,

	ADAU1761_OUTPUT_MODE_LINE,

};



/**

 * struct adau1761_platform_data - ADAU1761 Codec driver platform data

 * @input_differential: If true the input pins will be configured in

 *  differential mode.

 * @lineout_mode: Output mode for the LOUT/ROUT pins

 * @headphone_mode: Output mode for the LHP/RHP pins

 * @digmic_jackdetect_pin_mode: JACKDET/MICIN pin configuration

 * @jackdetect_debounce_time: Jack insertion detection debounce time.

 *  Note: This value will only be used, if the JACKDET/MICIN pin is configured

 *  for jack insertion detection.

 * @jackdetect_active_low: If true the jack insertion detection is active low.

 *  Othwise it will be active high.

 * @micbias_voltage: Microphone voltage bias

 */

struct adau1761_platform_data {

	bool input_differential;

	enum adau1761_output_mode lineout_mode;

	enum adau1761_output_mode headphone_mode;



	enum adau1761_digmic_jackdet_pin_mode digmic_jackdetect_pin_mode;



	enum adau1761_jackdetect_debounce_time jackdetect_debounce_time;

	bool jackdetect_active_low;



	enum adau17x1_micbias_voltage micbias_voltage;

};



#endif

sound/soc/codecs/Kconfig

+16 −0
Original line number Diff line number Diff line
@@ -23,6 +23,8 @@ config SND_SOC_ALL_CODECS 
	select SND_SOC_AD1980 if SND_SOC_AC97_BUS

	select SND_SOC_AD73311

	select SND_SOC_ADAU1373 if I2C

	select SND_SOC_ADAU1761_I2C if I2C

	select SND_SOC_ADAU1761_SPI if SPI

	select SND_SOC_ADAV801 if SPI_MASTER

	select SND_SOC_ADAV803 if I2C

	select SND_SOC_ADAU1977_SPI if SPI_MASTER
@@ -222,6 +224,20 @@ config SND_SOC_ADAU17X1 
	tristate

	select SND_SOC_SIGMADSP



config SND_SOC_ADAU1761

	tristate

	select SND_SOC_ADAU17X1



config SND_SOC_ADAU1761_I2C

	tristate

	select SND_SOC_ADAU1761

	select REGMAP_I2C



config SND_SOC_ADAU1761_SPI

	tristate

	select SND_SOC_ADAU1761

	select REGMAP_SPI



config SND_SOC_ADAU1977

	tristate

sound/soc/codecs/Makefile

+6 −0
Original line number Diff line number Diff line
@@ -10,6 +10,9 @@ snd-soc-ad73311-objs := ad73311.o 
snd-soc-adau1373-objs := adau1373.o

snd-soc-adau1701-objs := adau1701.o

snd-soc-adau17x1-objs := adau17x1.o

snd-soc-adau1761-objs := adau1761.o

snd-soc-adau1761-i2c-objs := adau1761-i2c.o

snd-soc-adau1761-spi-objs := adau1761-spi.o

snd-soc-adau1977-objs := adau1977.o

snd-soc-adau1977-spi-objs := adau1977-spi.o

snd-soc-adau1977-i2c-objs := adau1977-i2c.o
@@ -160,6 +163,9 @@ obj-$(CONFIG_SND_SOC_AD73311) += snd-soc-ad73311.o 
obj-$(CONFIG_SND_SOC_ADAU1373)	+= snd-soc-adau1373.o

obj-$(CONFIG_SND_SOC_ADAU1701)		+= snd-soc-adau1701.o

obj-$(CONFIG_SND_SOC_ADAU17X1)		+= snd-soc-adau17x1.o

obj-$(CONFIG_SND_SOC_ADAU1761)		+= snd-soc-adau1761.o

obj-$(CONFIG_SND_SOC_ADAU1761_I2C)	+= snd-soc-adau1761-i2c.o

obj-$(CONFIG_SND_SOC_ADAU1761_SPI)	+= snd-soc-adau1761-spi.o

obj-$(CONFIG_SND_SOC_ADAU1977)		+= snd-soc-adau1977.o

obj-$(CONFIG_SND_SOC_ADAU1977_SPI)	+= snd-soc-adau1977-spi.o

obj-$(CONFIG_SND_SOC_ADAU1977_I2C)	+= snd-soc-adau1977-i2c.o

sound/soc/codecs/adau1761-i2c.c

0 → 100644
+60 −0
Original line number Diff line number Diff line 
/*

 * Driver for ADAU1761/ADAU1461/ADAU1761/ADAU1961 codec

 *

 * Copyright 2014 Analog Devices Inc.

 *  Author: Lars-Peter Clausen <lars@metafoo.de>

 *

 * Licensed under the GPL-2.

 */



#include <linux/i2c.h>

#include <linux/mod_devicetable.h>

#include <linux/module.h>

#include <linux/regmap.h>

#include <sound/soc.h>



#include "adau1761.h"



static int adau1761_i2c_probe(struct i2c_client *client,

	const struct i2c_device_id *id)

{

	struct regmap_config config;



	config = adau1761_regmap_config;

	config.val_bits = 8;

	config.reg_bits = 16;



	return adau1761_probe(&client->dev,

		devm_regmap_init_i2c(client, &config),

		id->driver_data, NULL);

}



static int adau1761_i2c_remove(struct i2c_client *client)

{

	snd_soc_unregister_codec(&client->dev);

	return 0;

}



static const struct i2c_device_id adau1761_i2c_ids[] = {

	{ "adau1361", ADAU1361 },

	{ "adau1461", ADAU1761 },

	{ "adau1761", ADAU1761 },

	{ "adau1961", ADAU1361 },

	{ }

};

MODULE_DEVICE_TABLE(i2c, adau1761_i2c_ids);



static struct i2c_driver adau1761_i2c_driver = {

	.driver = {

		.name = "adau1761",

		.owner = THIS_MODULE,

	},

	.probe = adau1761_i2c_probe,

	.remove = adau1761_i2c_remove,

	.id_table = adau1761_i2c_ids,

};

module_i2c_driver(adau1761_i2c_driver);



MODULE_DESCRIPTION("ASoC ADAU1361/ADAU1461/ADAU1761/ADAU1961 CODEC I2C driver");

MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");

MODULE_LICENSE("GPL");

sound/soc/codecs/adau1761-spi.c

0 → 100644
+77 −0
Original line number Diff line number Diff line 
/*

 * Driver for ADAU1761/ADAU1461/ADAU1761/ADAU1961 codec

 *

 * Copyright 2014 Analog Devices Inc.

 *  Author: Lars-Peter Clausen <lars@metafoo.de>

 *

 * Licensed under the GPL-2.

 */



#include <linux/mod_devicetable.h>

#include <linux/module.h>

#include <linux/regmap.h>

#include <linux/spi/spi.h>

#include <sound/soc.h>



#include "adau1761.h"



static void adau1761_spi_switch_mode(struct device *dev)

{

	struct spi_device *spi = to_spi_device(dev);



	/*

	 * To get the device into SPI mode CLATCH has to be pulled low three

	 * times.  Do this by issuing three dummy reads.

	 */

	spi_w8r8(spi, 0x00);

	spi_w8r8(spi, 0x00);

	spi_w8r8(spi, 0x00);

}



static int adau1761_spi_probe(struct spi_device *spi)

{

	const struct spi_device_id *id = spi_get_device_id(spi);

	struct regmap_config config;



	if (!id)

		return -EINVAL;



	config = adau1761_regmap_config;

	config.val_bits = 8;

	config.reg_bits = 24;

	config.read_flag_mask = 0x1;



	return adau1761_probe(&spi->dev,

		devm_regmap_init_spi(spi, &config),

		id->driver_data, adau1761_spi_switch_mode);

}



static int adau1761_spi_remove(struct spi_device *spi)

{

	snd_soc_unregister_codec(&spi->dev);

	return 0;

}



static const struct spi_device_id adau1761_spi_id[] = {

	{ "adau1361", ADAU1361 },

	{ "adau1461", ADAU1761 },

	{ "adau1761", ADAU1761 },

	{ "adau1961", ADAU1361 },

	{ }

};

MODULE_DEVICE_TABLE(spi, adau1761_spi_id);



static struct spi_driver adau1761_spi_driver = {

	.driver = {

		.name = "adau1761",

		.owner = THIS_MODULE,

	},

	.probe = adau1761_spi_probe,

	.remove = adau1761_spi_remove,

	.id_table = adau1761_spi_id,

};

module_spi_driver(adau1761_spi_driver);



MODULE_DESCRIPTION("ASoC ADAU1361/ADAU1461/ADAU1761/ADAU1961 CODEC SPI driver");

MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");

MODULE_LICENSE("GPL");

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