5691b23489
This patch adds support for the Analog Devices AD5421 Loop-Powered, 4mA to 20mA DAC. Signed-off-by: Lars-Peter Clausen <lars@metafoo.de> Acked-by: Jonathan Cameron <jic23@cam.ac.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
33 lines
863 B
C
33 lines
863 B
C
#ifndef __IIO_DAC_AD5421_H__
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#define __IIO_DAC_AD5421_H__
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/*
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* TODO: This file needs to go into include/linux/iio
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*/
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/**
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* enum ad5421_current_range - Current range the AD5421 is configured for.
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* @AD5421_CURRENT_RANGE_4mA_20mA: 4 mA to 20 mA (RANGE1,0 pins = 00)
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* @AD5421_CURRENT_RANGE_3mA8_21mA: 3.8 mA to 21 mA (RANGE1,0 pins = x1)
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* @AD5421_CURRENT_RANGE_3mA2_24mA: 3.2 mA to 24 mA (RANGE1,0 pins = 10)
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*/
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enum ad5421_current_range {
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AD5421_CURRENT_RANGE_4mA_20mA,
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AD5421_CURRENT_RANGE_3mA8_21mA,
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AD5421_CURRENT_RANGE_3mA2_24mA,
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};
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/**
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* struct ad5421_platform_data - AD5421 DAC driver platform data
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* @external_vref: whether an external reference voltage is used or not
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* @current_range: Current range the AD5421 is configured for
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*/
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struct ad5421_platform_data {
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bool external_vref;
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enum ad5421_current_range current_range;
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};
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#endif
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