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Unverified Commit 993a3450 authored by Andreas Dannenberg's avatar Andreas Dannenberg Committed by Mark Brown
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ASoC: pcm186x: Add initial PCM1862/63/64/65 universal ADC driver 



This is an initial version of the PCM186x codec driver supporting both
2-channel and 4-channel device variants. Not all device features are
supported yet such as master/slave mode PLL configuration for which the
codec driver currently relies on the PCM186x built-in clock
auto-detection feature or the connection of digital microphones.
However here is what's here and what should work:

- Support for SPI and I2C low-level interfaces
- Regmap support and basic register definitions
- Input Mixer and Mux selection
- I2C, LJ, and TDM DAI format support

Signed-off-by: default avatarAndreas Dannenberg <dannenberg@ti.com>
Signed-off-by: default avatarMichael Stecklein <m-stecklein@ti.com>
Signed-off-by: default avatarAndrew F. Davis <afd@ti.com>
Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 4fbd8d19

sound/soc/codecs/Kconfig

+17 −0
Original line number Diff line number Diff line
@@ -109,6 +109,8 @@ config SND_SOC_ALL_CODECS 
	select SND_SOC_PCM1681 if I2C

	select SND_SOC_PCM179X_I2C if I2C

	select SND_SOC_PCM179X_SPI if SPI_MASTER

	select SND_SOC_PCM186X_I2C if I2C

	select SND_SOC_PCM186X_SPI if SPI_MASTER

	select SND_SOC_PCM3008

	select SND_SOC_PCM3168A_I2C if I2C

	select SND_SOC_PCM3168A_SPI if SPI_MASTER
@@ -661,6 +663,21 @@ config SND_SOC_PCM179X_SPI 
	  Enable support for Texas Instruments PCM179x CODEC.

	  Select this if your PCM179x is connected via an SPI bus.



config SND_SOC_PCM186X

	tristate



config SND_SOC_PCM186X_I2C

	tristate "Texas Instruments PCM186x CODECs - I2C"

	depends on I2C

	select SND_SOC_PCM186X

	select REGMAP_I2C



config SND_SOC_PCM186X_SPI

	tristate "Texas Instruments PCM186x CODECs - SPI"

	depends on SPI_MASTER

	select SND_SOC_PCM186X

	select REGMAP_SPI



config SND_SOC_PCM3008

       tristate

sound/soc/codecs/Makefile

+6 −0
Original line number Diff line number Diff line
@@ -105,6 +105,9 @@ snd-soc-pcm1681-objs := pcm1681.o 
snd-soc-pcm179x-codec-objs := pcm179x.o

snd-soc-pcm179x-i2c-objs := pcm179x-i2c.o

snd-soc-pcm179x-spi-objs := pcm179x-spi.o

snd-soc-pcm186x-objs := pcm186x.o

snd-soc-pcm186x-i2c-objs := pcm186x-i2c.o

snd-soc-pcm186x-spi-objs := pcm186x-spi.o

snd-soc-pcm3008-objs := pcm3008.o

snd-soc-pcm3168a-objs := pcm3168a.o

snd-soc-pcm3168a-i2c-objs := pcm3168a-i2c.o
@@ -345,6 +348,9 @@ obj-$(CONFIG_SND_SOC_PCM1681) += snd-soc-pcm1681.o 
obj-$(CONFIG_SND_SOC_PCM179X)	+= snd-soc-pcm179x-codec.o

obj-$(CONFIG_SND_SOC_PCM179X_I2C)	+= snd-soc-pcm179x-i2c.o

obj-$(CONFIG_SND_SOC_PCM179X_SPI)	+= snd-soc-pcm179x-spi.o

obj-$(CONFIG_SND_SOC_PCM186X)	+= snd-soc-pcm186x.o

obj-$(CONFIG_SND_SOC_PCM186X_I2C)	+= snd-soc-pcm186x-i2c.o

obj-$(CONFIG_SND_SOC_PCM186X_SPI)	+= snd-soc-pcm186x-spi.o

obj-$(CONFIG_SND_SOC_PCM3008)	+= snd-soc-pcm3008.o

obj-$(CONFIG_SND_SOC_PCM3168A)	+= snd-soc-pcm3168a.o

obj-$(CONFIG_SND_SOC_PCM3168A_I2C)	+= snd-soc-pcm3168a-i2c.o

sound/soc/codecs/pcm186x-i2c.c

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+69 −0
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// SPDX-License-Identifier: GPL-2.0

/*

 * Texas Instruments PCM186x Universal Audio ADC - I2C

 *

 * Copyright (C) 2015-2017 Texas Instruments Incorporated - http://www.ti.com

 *	Andreas Dannenberg <dannenberg@ti.com>

 *	Andrew F. Davis <afd@ti.com>

 */



#include <linux/init.h>

#include <linux/module.h>

#include <linux/i2c.h>



#include "pcm186x.h"



static const struct of_device_id pcm186x_of_match[] = {

	{ .compatible = "ti,pcm1862", .data = (void *)PCM1862 },

	{ .compatible = "ti,pcm1863", .data = (void *)PCM1863 },

	{ .compatible = "ti,pcm1864", .data = (void *)PCM1864 },

	{ .compatible = "ti,pcm1865", .data = (void *)PCM1865 },

	{ }

};

MODULE_DEVICE_TABLE(of, pcm186x_of_match);



static int pcm186x_i2c_probe(struct i2c_client *i2c,

			     const struct i2c_device_id *id)

{

	const enum pcm186x_type type = (enum pcm186x_type)id->driver_data;

	int irq = i2c->irq;

	struct regmap *regmap;



	regmap = devm_regmap_init_i2c(i2c, &pcm186x_regmap);

	if (IS_ERR(regmap))

		return PTR_ERR(regmap);



	return pcm186x_probe(&i2c->dev, type, irq, regmap);

}



static int pcm186x_i2c_remove(struct i2c_client *i2c)

{

	pcm186x_remove(&i2c->dev);



	return 0;

}



static const struct i2c_device_id pcm186x_i2c_id[] = {

	{ "pcm1862", PCM1862 },

	{ "pcm1863", PCM1863 },

	{ "pcm1864", PCM1864 },

	{ "pcm1865", PCM1865 },

	{ }

};

MODULE_DEVICE_TABLE(i2c, pcm186x_i2c_id);



static struct i2c_driver pcm186x_i2c_driver = {

	.probe		= pcm186x_i2c_probe,

	.remove		= pcm186x_i2c_remove,

	.id_table	= pcm186x_i2c_id,

	.driver		= {

		.name	= "pcm186x",

		.of_match_table = pcm186x_of_match,

	},

};

module_i2c_driver(pcm186x_i2c_driver);



MODULE_AUTHOR("Andreas Dannenberg <dannenberg@ti.com>");

MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");

MODULE_DESCRIPTION("PCM186x Universal Audio ADC I2C Interface Driver");

MODULE_LICENSE("GPL v2");

sound/soc/codecs/pcm186x-spi.c

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+69 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0

/*

 * Texas Instruments PCM186x Universal Audio ADC - SPI

 *

 * Copyright (C) 2015-2017 Texas Instruments Incorporated - http://www.ti.com

 *	Andreas Dannenberg <dannenberg@ti.com>

 *	Andrew F. Davis <afd@ti.com>

 */



#include <linux/init.h>

#include <linux/module.h>

#include <linux/spi/spi.h>



#include "pcm186x.h"



static const struct of_device_id pcm186x_of_match[] = {

	{ .compatible = "ti,pcm1862", .data = (void *)PCM1862 },

	{ .compatible = "ti,pcm1863", .data = (void *)PCM1863 },

	{ .compatible = "ti,pcm1864", .data = (void *)PCM1864 },

	{ .compatible = "ti,pcm1865", .data = (void *)PCM1865 },

	{ }

};

MODULE_DEVICE_TABLE(of, pcm186x_of_match);



static int pcm186x_spi_probe(struct spi_device *spi)

{

	const enum pcm186x_type type =

			 (enum pcm186x_type)spi_get_device_id(spi)->driver_data;

	int irq = spi->irq;

	struct regmap *regmap;



	regmap = devm_regmap_init_spi(spi, &pcm186x_regmap);

	if (IS_ERR(regmap))

		return PTR_ERR(regmap);



	return pcm186x_probe(&spi->dev, type, irq, regmap);

}



static int pcm186x_spi_remove(struct spi_device *spi)

{

	pcm186x_remove(&spi->dev);



	return 0;

}



static const struct spi_device_id pcm186x_spi_id[] = {

	{ "pcm1862", PCM1862 },

	{ "pcm1863", PCM1863 },

	{ "pcm1864", PCM1864 },

	{ "pcm1865", PCM1865 },

	{ }

};

MODULE_DEVICE_TABLE(spi, pcm186x_spi_id);



static struct spi_driver pcm186x_spi_driver = {

	.probe		= pcm186x_spi_probe,

	.remove		= pcm186x_spi_remove,

	.id_table	= pcm186x_spi_id,

	.driver		= {

		.name	= "pcm186x",

		.of_match_table = pcm186x_of_match,

	},

};

module_spi_driver(pcm186x_spi_driver);



MODULE_AUTHOR("Andreas Dannenberg <dannenberg@ti.com>");

MODULE_AUTHOR("Andrew F. Davis <afd@ti.com>");

MODULE_DESCRIPTION("PCM186x Universal Audio ADC SPI Interface Driver");

MODULE_LICENSE("GPL v2");

sound/soc/codecs/pcm186x.c

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