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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>
46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
/*
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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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