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Sean Crossbroonie
Sean Cross
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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: Sean Cross <[email protected]> Signed-off-by: Mark Brown <[email protected]>
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‎Documentation/devicetree/bindings/sound/es8328.txt‎

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Everest ES8328 audio CODEC
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This device supports both I2C and SPI.
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Required properties:
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- compatible : "everest,es8328"
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- DVDD-supply : Regulator providing digital core supply voltage 1.8 - 3.6V
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- AVDD-supply : Regulator providing analog supply voltage 3.3V
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- PVDD-supply : Regulator providing digital IO supply voltage 1.8 - 3.6V
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- IPVDD-supply : Regulator providing analog output voltage 3.3V
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- clocks : A 22.5792 or 11.2896 MHz clock
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- reg : the I2C address of the device for I2C, the chip select number for SPI
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Pins on the device (for linking into audio routes):
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* LOUT1
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* LOUT2
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* ROUT1
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* ROUT2
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* LINPUT1
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* RINPUT1
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* LINPUT2
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* RINPUT2
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* Mic Bias
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Example:
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codec: es8328@11 {
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compatible = "everest,es8328";
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DVDD-supply = <&reg_3p3v>;
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AVDD-supply = <&reg_3p3v>;
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PVDD-supply = <&reg_3p3v>;
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HPVDD-supply = <&reg_3p3v>;
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clocks = <&clks 169>;
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reg = <0x11>;
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};

‎sound/soc/codecs/Kconfig‎

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@@ -57,6 +57,8 @@ config SND_SOC_ALL_CODECS
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select SND_SOC_DA732X if I2C
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select SND_SOC_DA9055 if I2C
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select SND_SOC_BT_SCO
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select SND_SOC_ES8328_SPI if SPI_MASTER
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select SND_SOC_ES8328_I2C if I2C
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select SND_SOC_ISABELLE if I2C
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select SND_SOC_JZ4740_CODEC
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select SND_SOC_LM4857 if I2C
@@ -405,6 +407,17 @@ config SND_SOC_DMIC
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config SND_SOC_HDMI_CODEC
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tristate "HDMI stub CODEC"
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config SND_SOC_ES8328
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tristate "Everest Semi ES8328 CODEC"
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config SND_SOC_ES8328_I2C
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tristate
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select SND_SOC_ES8328
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config SND_SOC_ES8328_SPI
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tristate
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select SND_SOC_ES8328
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config SND_SOC_ISABELLE
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tristate
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‎sound/soc/codecs/Makefile‎

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@@ -49,6 +49,9 @@ snd-soc-da732x-objs := da732x.o
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snd-soc-da9055-objs := da9055.o
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snd-soc-bt-sco-objs := bt-sco.o
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snd-soc-dmic-objs := dmic.o
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snd-soc-es8328-objs := es8328.o
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snd-soc-es8328-i2c-objs := es8328-i2c.o
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snd-soc-es8328-spi-objs := es8328-spi.o
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snd-soc-isabelle-objs := isabelle.o
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snd-soc-jz4740-codec-objs := jz4740.o
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snd-soc-l3-objs := l3.o
@@ -220,6 +223,9 @@ obj-$(CONFIG_SND_SOC_DA732X) += snd-soc-da732x.o
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obj-$(CONFIG_SND_SOC_DA9055) += snd-soc-da9055.o
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obj-$(CONFIG_SND_SOC_BT_SCO) += snd-soc-bt-sco.o
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obj-$(CONFIG_SND_SOC_DMIC) += snd-soc-dmic.o
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obj-$(CONFIG_SND_SOC_ES8328) += snd-soc-es8328.o
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obj-$(CONFIG_SND_SOC_ES8328_I2C)+= snd-soc-es8328-i2c.o
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obj-$(CONFIG_SND_SOC_ES8328_SPI)+= snd-soc-es8328-spi.o
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obj-$(CONFIG_SND_SOC_ISABELLE) += snd-soc-isabelle.o
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obj-$(CONFIG_SND_SOC_JZ4740_CODEC) += snd-soc-jz4740-codec.o
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obj-$(CONFIG_SND_SOC_L3) += snd-soc-l3.o

‎sound/soc/codecs/es8328-i2c.c‎

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/*
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* es8328-i2c.c -- ES8328 ALSA SoC I2C Audio driver
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*
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* Copyright 2014 Sutajio Ko-Usagi PTE LTD
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*
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* Author: Sean Cross <[email protected]>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/module.h>
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#include <linux/i2c.h>
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#include <linux/regmap.h>
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#include <sound/soc.h>
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#include "es8328.h"
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static const struct i2c_device_id es8328_id[] = {
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{ "everest,es8328", 0 },
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{ }
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};
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MODULE_DEVICE_TABLE(i2c, es8328_id);
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static const struct of_device_id es8328_of_match[] = {
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{ .compatible = "everest,es8328", },
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{ }
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};
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MODULE_DEVICE_TABLE(of, es8328_of_match);
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static int es8328_i2c_probe(struct i2c_client *i2c,
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const struct i2c_device_id *id)
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{
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return es8328_probe(&i2c->dev,
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devm_regmap_init_i2c(i2c, &es8328_regmap_config));
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}
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static int es8328_i2c_remove(struct i2c_client *i2c)
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{
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snd_soc_unregister_codec(&i2c->dev);
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return 0;
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}
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static struct i2c_driver es8328_i2c_driver = {
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.driver = {
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.name = "es8328",
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.of_match_table = es8328_of_match,
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},
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.probe = es8328_i2c_probe,
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.remove = es8328_i2c_remove,
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.id_table = es8328_id,
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};
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module_i2c_driver(es8328_i2c_driver);
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MODULE_DESCRIPTION("ASoC ES8328 audio CODEC I2C driver");
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MODULE_AUTHOR("Sean Cross <[email protected]>");
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MODULE_LICENSE("GPL");

‎sound/soc/codecs/es8328-spi.c‎

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/*
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* es8328.c -- ES8328 ALSA SoC SPI Audio driver
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*
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* Copyright 2014 Sutajio Ko-Usagi PTE LTD
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*
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* Author: Sean Cross <[email protected]>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/module.h>
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#include <linux/regmap.h>
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#include <linux/spi/spi.h>
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#include <sound/soc.h>
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#include "es8328.h"
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static const struct of_device_id es8328_of_match[] = {
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{ .compatible = "everest,es8328", },
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{ }
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};
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MODULE_DEVICE_TABLE(of, es8328_of_match);
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static int es8328_spi_probe(struct spi_device *spi)
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{
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return es8328_probe(&spi->dev,
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devm_regmap_init_spi(spi, &es8328_regmap_config));
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}
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static int es8328_spi_remove(struct spi_device *spi)
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{
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snd_soc_unregister_codec(&spi->dev);
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return 0;
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}
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static struct spi_driver es8328_spi_driver = {
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.driver = {
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.name = "es8328",
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.of_match_table = es8328_of_match,
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},
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.probe = es8328_spi_probe,
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.remove = es8328_spi_remove,
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};
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module_spi_driver(es8328_spi_driver);
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MODULE_DESCRIPTION("ASoC ES8328 audio CODEC SPI driver");
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MODULE_AUTHOR("Sean Cross <[email protected]>");
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MODULE_LICENSE("GPL");

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