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Commit 567e4f98 authored by Sean Cross's avatar Sean Cross Committed by Mark Brown
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ASoC: add es8328 codec driver 



Add a codec driver for the Everest ES8328.  It supports two separate audio
outputs and two separate audio inputs.

Signed-off-by: default avatarSean Cross <xobs@kosagi.com>
Signed-off-by: default avatarMark Brown <broonie@linaro.org>
parent d4f7facd

Documentation/devicetree/bindings/sound/es8328.txt

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+38 −0
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Everest ES8328 audio CODEC



This device supports both I2C and SPI.



Required properties:



  - compatible : "everest,es8328"

  - DVDD-supply : Regulator providing digital core supply voltage 1.8 - 3.6V

  - AVDD-supply : Regulator providing analog supply voltage 3.3V

  - PVDD-supply : Regulator providing digital IO supply voltage 1.8 - 3.6V

  - IPVDD-supply : Regulator providing analog output voltage 3.3V

  - clocks : A 22.5792 or 11.2896 MHz clock

  - reg : the I2C address of the device for I2C, the chip select number for SPI



Pins on the device (for linking into audio routes):



  * LOUT1

  * LOUT2

  * ROUT1

  * ROUT2

  * LINPUT1

  * RINPUT1

  * LINPUT2

  * RINPUT2

  * Mic Bias





Example:



codec: es8328@11 {

	compatible = "everest,es8328";

	DVDD-supply = <&reg_3p3v>;

	AVDD-supply = <&reg_3p3v>;

	PVDD-supply = <&reg_3p3v>;

	HPVDD-supply = <&reg_3p3v>;

	clocks = <&clks 169>;

	reg = <0x11>;

};

sound/soc/codecs/Kconfig

+13 −0
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@@ -57,6 +57,8 @@ config SND_SOC_ALL_CODECS 
	select SND_SOC_DA732X if I2C

	select SND_SOC_DA9055 if I2C

	select SND_SOC_BT_SCO

	select SND_SOC_ES8328_SPI if SPI_MASTER

	select SND_SOC_ES8328_I2C if I2C

	select SND_SOC_ISABELLE if I2C

	select SND_SOC_JZ4740_CODEC

	select SND_SOC_LM4857 if I2C
@@ -405,6 +407,17 @@ config SND_SOC_DMIC 
config SND_SOC_HDMI_CODEC

       tristate "HDMI stub CODEC"



config SND_SOC_ES8328

	tristate "Everest Semi ES8328 CODEC"



config SND_SOC_ES8328_I2C

	tristate

	select SND_SOC_ES8328



config SND_SOC_ES8328_SPI

	tristate

	select SND_SOC_ES8328



config SND_SOC_ISABELLE

        tristate

sound/soc/codecs/Makefile

+6 −0
Original line number Diff line number Diff line
@@ -49,6 +49,9 @@ snd-soc-da732x-objs := da732x.o 
snd-soc-da9055-objs := da9055.o

snd-soc-bt-sco-objs := bt-sco.o

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

snd-soc-es8328-objs := es8328.o

snd-soc-es8328-i2c-objs := es8328-i2c.o

snd-soc-es8328-spi-objs := es8328-spi.o

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

snd-soc-jz4740-codec-objs := jz4740.o

snd-soc-l3-objs := l3.o
@@ -220,6 +223,9 @@ obj-$(CONFIG_SND_SOC_DA732X) += snd-soc-da732x.o 
obj-$(CONFIG_SND_SOC_DA9055)	+= snd-soc-da9055.o

obj-$(CONFIG_SND_SOC_BT_SCO)	+= snd-soc-bt-sco.o

obj-$(CONFIG_SND_SOC_DMIC)	+= snd-soc-dmic.o

obj-$(CONFIG_SND_SOC_ES8328)	+= snd-soc-es8328.o

obj-$(CONFIG_SND_SOC_ES8328_I2C)+= snd-soc-es8328-i2c.o

obj-$(CONFIG_SND_SOC_ES8328_SPI)+= snd-soc-es8328-spi.o

obj-$(CONFIG_SND_SOC_ISABELLE)	+= snd-soc-isabelle.o

obj-$(CONFIG_SND_SOC_JZ4740_CODEC)	+= snd-soc-jz4740-codec.o

obj-$(CONFIG_SND_SOC_L3)	+= snd-soc-l3.o

sound/soc/codecs/es8328-i2c.c

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/*

 * es8328-i2c.c  --  ES8328 ALSA SoC I2C Audio driver

 *

 * Copyright 2014 Sutajio Ko-Usagi PTE LTD

 *

 * Author: Sean Cross <xobs@kosagi.com>

 *

 * 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.

 */



#include <linux/module.h>

#include <linux/i2c.h>

#include <linux/regmap.h>



#include <sound/soc.h>



#include "es8328.h"



static const struct i2c_device_id es8328_id[] = {

	{ "everest,es8328", 0 },

	{ }

};

MODULE_DEVICE_TABLE(i2c, es8328_id);



static const struct of_device_id es8328_of_match[] = {

	{ .compatible = "everest,es8328", },

	{ }

};

MODULE_DEVICE_TABLE(of, es8328_of_match);



static int es8328_i2c_probe(struct i2c_client *i2c,

			    const struct i2c_device_id *id)

{

	return es8328_probe(&i2c->dev,

			devm_regmap_init_i2c(i2c, &es8328_regmap_config));

}



static int es8328_i2c_remove(struct i2c_client *i2c)

{

	snd_soc_unregister_codec(&i2c->dev);

	return 0;

}



static struct i2c_driver es8328_i2c_driver = {

	.driver = {

		.name		= "es8328",

		.of_match_table = es8328_of_match,

	},

	.probe    = es8328_i2c_probe,

	.remove   = es8328_i2c_remove,

	.id_table = es8328_id,

};



module_i2c_driver(es8328_i2c_driver);



MODULE_DESCRIPTION("ASoC ES8328 audio CODEC I2C driver");

MODULE_AUTHOR("Sean Cross <xobs@kosagi.com>");

MODULE_LICENSE("GPL");

sound/soc/codecs/es8328-spi.c

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/*

 * es8328.c  --  ES8328 ALSA SoC SPI Audio driver

 *

 * Copyright 2014 Sutajio Ko-Usagi PTE LTD

 *

 * Author: Sean Cross <xobs@kosagi.com>

 *

 * 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.

 */



#include <linux/module.h>

#include <linux/regmap.h>

#include <linux/spi/spi.h>

#include <sound/soc.h>

#include "es8328.h"



static const struct of_device_id es8328_of_match[] = {

	{ .compatible = "everest,es8328", },

	{ }

};

MODULE_DEVICE_TABLE(of, es8328_of_match);



static int es8328_spi_probe(struct spi_device *spi)

{

	return es8328_probe(&spi->dev,

			devm_regmap_init_spi(spi, &es8328_regmap_config));

}



static int es8328_spi_remove(struct spi_device *spi)

{

	snd_soc_unregister_codec(&spi->dev);

	return 0;

}



static struct spi_driver es8328_spi_driver = {

	.driver = {

		.name		= "es8328",

		.of_match_table	= es8328_of_match,

	},

	.probe	= es8328_spi_probe,

	.remove	= es8328_spi_remove,

};



module_spi_driver(es8328_spi_driver);

MODULE_DESCRIPTION("ASoC ES8328 audio CODEC SPI driver");

MODULE_AUTHOR("Sean Cross <xobs@kosagi.com>");

MODULE_LICENSE("GPL");