forked from mirrors/linux
5750ebab14
The AD7266 have no in-tree users making use of the platform data mechanism to pass address GPIO lines when not using a fixed address, so we can easily convert this to use GPIO descriptors instead of the platform data integers currently passed. Lowercase the labels "ad0".."ad2" as this will make a better fit for platform descriptions like device tree that prefer lowercase names such as "ad0-gpios" rather than "AD0-gpios". Board files and other static users of this device can pass the same GPIO descriptors using machine descriptor tables if need be. Cc: Alison Schofield <amsfield22@gmail.com> Cc: Lars-Peter Clausen <lars@metafoo.de> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Alexandru Ardelean <alexandru.ardelean@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* AD7266/65 SPI ADC driver
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*
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* Copyright 2012 Analog Devices Inc.
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*/
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#ifndef __IIO_ADC_AD7266_H__
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#define __IIO_ADC_AD7266_H__
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/**
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* enum ad7266_range - AD7266 reference voltage range
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* @AD7266_RANGE_VREF: Device is configured for input range 0V - VREF
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* (RANGE pin set to low)
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* @AD7266_RANGE_2VREF: Device is configured for input range 0V - 2VREF
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* (RANGE pin set to high)
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*/
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enum ad7266_range {
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AD7266_RANGE_VREF,
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AD7266_RANGE_2VREF,
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};
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/**
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* enum ad7266_mode - AD7266 sample mode
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* @AD7266_MODE_DIFF: Device is configured for full differential mode
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* (SGL/DIFF pin set to low, AD0 pin set to low)
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* @AD7266_MODE_PSEUDO_DIFF: Device is configured for pseudo differential mode
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* (SGL/DIFF pin set to low, AD0 pin set to high)
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* @AD7266_MODE_SINGLE_ENDED: Device is configured for single-ended mode
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* (SGL/DIFF pin set to high)
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*/
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enum ad7266_mode {
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AD7266_MODE_DIFF,
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AD7266_MODE_PSEUDO_DIFF,
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AD7266_MODE_SINGLE_ENDED,
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};
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/**
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* struct ad7266_platform_data - Platform data for the AD7266 driver
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* @range: Reference voltage range the device is configured for
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* @mode: Sample mode the device is configured for
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* @fixed_addr: Whether the address pins are hard-wired
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*/
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struct ad7266_platform_data {
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enum ad7266_range range;
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enum ad7266_mode mode;
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bool fixed_addr;
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};
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#endif
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