ASoC: Add ADAU1977 CODEC driver
This patch adds support for the ADAU1977, ADAU1978 and ADAU1979 audio CODEC devices. They are a family of 4-channel differential input audio ADC devices. They can be connected to either a SPI or I2C bus. The driver is implemented in three modules, one main module (adau1977.ko) which implements the device logic and one module each for SPI (adau1977-spi.ko) and I2C (adau1977-i2c.ko) bus access. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Mark Brown <broonie@linaro.org>wifi-calibration
Lars-Peter Clausen
Mark Brown
parent
a32eb702f8
commit
603597c937
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@ -0,0 +1,45 @@
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/*
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* ADAU1977/ADAU1978/ADAU1979 driver
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*
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* Copyright 2014 Analog Devices Inc.
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* Author: Lars-Peter Clausen <lars@metafoo.de>
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*
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* Licensed under the GPL-2.
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*/
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#ifndef __LINUX_PLATFORM_DATA_ADAU1977_H__
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#define __LINUX_PLATFORM_DATA_ADAU1977_H__
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/**
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* enum adau1977_micbias - ADAU1977 MICBIAS pin voltage setting
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* @ADAU1977_MICBIAS_5V0: MICBIAS is set to 5.0 V
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* @ADAU1977_MICBIAS_5V5: MICBIAS is set to 5.5 V
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* @ADAU1977_MICBIAS_6V0: MICBIAS is set to 6.0 V
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* @ADAU1977_MICBIAS_6V5: MICBIAS is set to 6.5 V
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* @ADAU1977_MICBIAS_7V0: MICBIAS is set to 7.0 V
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* @ADAU1977_MICBIAS_7V5: MICBIAS is set to 7.5 V
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* @ADAU1977_MICBIAS_8V0: MICBIAS is set to 8.0 V
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* @ADAU1977_MICBIAS_8V5: MICBIAS is set to 8.5 V
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* @ADAU1977_MICBIAS_9V0: MICBIAS is set to 9.0 V
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*/
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enum adau1977_micbias {
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ADAU1977_MICBIAS_5V0 = 0x0,
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ADAU1977_MICBIAS_5V5 = 0x1,
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ADAU1977_MICBIAS_6V0 = 0x2,
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ADAU1977_MICBIAS_6V5 = 0x3,
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ADAU1977_MICBIAS_7V0 = 0x4,
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ADAU1977_MICBIAS_7V5 = 0x5,
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ADAU1977_MICBIAS_8V0 = 0x6,
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ADAU1977_MICBIAS_8V5 = 0x7,
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ADAU1977_MICBIAS_9V0 = 0x8,
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};
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/**
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* struct adau1977_platform_data - Platform configuration data for the ADAU1977
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* @micbias: Specifies the voltage for the MICBIAS pin
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*/
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struct adau1977_platform_data {
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enum adau1977_micbias micbias;
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};
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#endif
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@ -24,6 +24,8 @@ config SND_SOC_ALL_CODECS
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select SND_SOC_ADAU1373 if I2C
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select SND_SOC_ADAV801 if SPI_MASTER
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select SND_SOC_ADAV803 if I2C
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select SND_SOC_ADAU1977_SPI if SPI_MASTER
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select SND_SOC_ADAU1977_I2C if I2C
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select SND_SOC_ADAU1701 if I2C
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select SND_SOC_ADS117X
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select SND_SOC_AK4104 if SPI_MASTER
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@ -200,6 +202,19 @@ config SND_SOC_ADAU1701
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config SND_SOC_ADAU1373
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tristate
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config SND_SOC_ADAU1977
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tristate
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config SND_SOC_ADAU1977_SPI
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tristate
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select SND_SOC_ADAU1977
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select REGMAP_SPI
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config SND_SOC_ADAU1977_I2C
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tristate
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select SND_SOC_ADAU1977
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select REGMAP_I2C
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config SND_SOC_ADAV80X
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tristate
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@ -7,6 +7,9 @@ snd-soc-ad1980-objs := ad1980.o
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snd-soc-ad73311-objs := ad73311.o
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snd-soc-adau1701-objs := adau1701.o
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snd-soc-adau1373-objs := adau1373.o
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snd-soc-adau1977-objs := adau1977.o
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snd-soc-adau1977-spi-objs := adau1977-spi.o
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snd-soc-adau1977-i2c-objs := adau1977-i2c.o
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snd-soc-adav80x-objs := adav80x.o
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snd-soc-adav801-objs := adav801.o
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snd-soc-adav803-objs := adav803.o
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@ -139,6 +142,9 @@ obj-$(CONFIG_SND_SOC_AD193X) += snd-soc-ad193x.o
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obj-$(CONFIG_SND_SOC_AD1980) += snd-soc-ad1980.o
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obj-$(CONFIG_SND_SOC_AD73311) += snd-soc-ad73311.o
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obj-$(CONFIG_SND_SOC_ADAU1373) += snd-soc-adau1373.o
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obj-$(CONFIG_SND_SOC_ADAU1977) += snd-soc-adau1977.o
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obj-$(CONFIG_SND_SOC_ADAU1977_SPI) += snd-soc-adau1977-spi.o
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obj-$(CONFIG_SND_SOC_ADAU1977_I2C) += snd-soc-adau1977-i2c.o
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obj-$(CONFIG_SND_SOC_ADAU1701) += snd-soc-adau1701.o
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obj-$(CONFIG_SND_SOC_ADAV80X) += snd-soc-adav80x.o
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obj-$(CONFIG_SND_SOC_ADAV801) += snd-soc-adav801.o
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@ -0,0 +1,59 @@
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/*
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* ADAU1977/ADAU1978/ADAU1979 driver
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*
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* Copyright 2014 Analog Devices Inc.
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* Author: Lars-Peter Clausen <lars@metafoo.de>
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*
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* Licensed under the GPL-2.
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*/
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#include <linux/i2c.h>
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#include <linux/mod_devicetable.h>
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#include <linux/module.h>
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#include <linux/regmap.h>
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#include <sound/soc.h>
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#include "adau1977.h"
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static int adau1977_i2c_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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struct regmap_config config;
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config = adau1977_regmap_config;
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config.val_bits = 8;
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config.reg_bits = 8;
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return adau1977_probe(&client->dev,
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devm_regmap_init_i2c(client, &config),
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id->driver_data, NULL);
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}
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static int adau1977_i2c_remove(struct i2c_client *client)
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{
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snd_soc_unregister_codec(&client->dev);
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return 0;
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}
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static const struct i2c_device_id adau1977_i2c_ids[] = {
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{ "adau1977", ADAU1977 },
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{ "adau1978", ADAU1978 },
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{ "adau1979", ADAU1978 },
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{ }
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};
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MODULE_DEVICE_TABLE(i2c, adau1977_i2c_ids);
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static struct i2c_driver adau1977_i2c_driver = {
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.driver = {
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.name = "adau1977",
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.owner = THIS_MODULE,
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},
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.probe = adau1977_i2c_probe,
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.remove = adau1977_i2c_remove,
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.id_table = adau1977_i2c_ids,
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};
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module_i2c_driver(adau1977_i2c_driver);
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MODULE_DESCRIPTION("ASoC ADAU1977/ADAU1978/ADAU1979 driver");
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MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
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MODULE_LICENSE("GPL");
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@ -0,0 +1,76 @@
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/*
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* ADAU1977/ADAU1978/ADAU1979 driver
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*
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* Copyright 2014 Analog Devices Inc.
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* Author: Lars-Peter Clausen <lars@metafoo.de>
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*
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* Licensed under the GPL-2.
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*/
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#include <linux/mod_devicetable.h>
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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 "adau1977.h"
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static void adau1977_spi_switch_mode(struct device *dev)
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{
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struct spi_device *spi = to_spi_device(dev);
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/*
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* To get the device into SPI mode CLATCH has to be pulled low three
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* times. Do this by issuing three dummy reads.
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*/
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spi_w8r8(spi, 0x00);
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spi_w8r8(spi, 0x00);
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spi_w8r8(spi, 0x00);
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}
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static int adau1977_spi_probe(struct spi_device *spi)
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{
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const struct spi_device_id *id = spi_get_device_id(spi);
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struct regmap_config config;
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if (!id)
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return -EINVAL;
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config = adau1977_regmap_config;
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config.val_bits = 8;
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config.reg_bits = 16;
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config.read_flag_mask = 0x1;
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return adau1977_probe(&spi->dev,
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devm_regmap_init_spi(spi, &config),
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id->driver_data, adau1977_spi_switch_mode);
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}
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static int adau1977_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 const struct spi_device_id adau1977_spi_ids[] = {
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{ "adau1977", ADAU1977 },
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{ "adau1978", ADAU1978 },
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{ "adau1979", ADAU1978 },
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{ }
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};
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MODULE_DEVICE_TABLE(spi, adau1977_spi_ids);
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static struct spi_driver adau1977_spi_driver = {
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.driver = {
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.name = "adau1977",
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.owner = THIS_MODULE,
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},
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.probe = adau1977_spi_probe,
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.remove = adau1977_spi_remove,
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.id_table = adau1977_spi_ids,
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};
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module_spi_driver(adau1977_spi_driver);
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MODULE_DESCRIPTION("ASoC ADAU1977/ADAU1978/ADAU1979 driver");
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MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
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MODULE_LICENSE("GPL");
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File diff suppressed because it is too large
Load Diff
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@ -0,0 +1,37 @@
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/*
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* ADAU1977/ADAU1978/ADAU1979 driver
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*
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* Copyright 2014 Analog Devices Inc.
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* Author: Lars-Peter Clausen <lars@metafoo.de>
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*
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* Licensed under the GPL-2.
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*/
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#ifndef __SOUND_SOC_CODECS_ADAU1977_H__
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#define __SOUND_SOC_CODECS_ADAU1977_H__
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#include <linux/regmap.h>
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struct device;
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enum adau1977_type {
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ADAU1977,
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ADAU1978,
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ADAU1979,
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};
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int adau1977_probe(struct device *dev, struct regmap *regmap,
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enum adau1977_type type, void (*switch_mode)(struct device *dev));
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extern const struct regmap_config adau1977_regmap_config;
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enum adau1977_clk_id {
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ADAU1977_SYSCLK,
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};
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enum adau1977_sysclk_src {
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ADAU1977_SYSCLK_SRC_MCLK,
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ADAU1977_SYSCLK_SRC_LRCLK,
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};
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#endif
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