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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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