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/*
* AD7780/AD7781 SPI ADC driver
*
* Copyright 2011 Analog Devices Inc.
*
* Licensed under the GPL-2.
*/
#ifndef IIO_ADC_AD7780_H_
#define IIO_ADC_AD7780_H_
/*
* TODO: struct ad7780_platform_data needs to go into include/linux/iio
*/
/* NOTE:
* The AD7780 doesn't feature a dedicated SPI chip select, in addition it
* features a dual use data out ready DOUT/RDY output.
* In order to avoid contentions on the SPI bus, it's therefore necessary
* to use spi bus locking combined with a dedicated GPIO to control the
* power down reset signal of the AD7780.
*
* The DOUT/RDY output must also be wired to an interrupt capable GPIO.
*/
struct ad7780_platform_data {
u16 vref_mv;
int gpio_pdrst;
};
#endif /* IIO_ADC_AD7780_H_ */
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