mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-16 16:54:20 +08:00
260442cc5b
The scale can now be obtained with the "in_voltage_scale" file. By default, the scale returned corresponds to the internal VREF of 2.5V. It is possible to use an external VREF (through the REFIN/REFOUT pin of the chip), by passing a regulator to the driver. The scale will then be calculated according to the voltage reported by the regulator. Signed-off-by: Paul Cercueil <paul.cercueil@analog.com> Co-developed-by: Beniamin Bia <beniamin.bia@analog.com> Signed-off-by: Beniamin Bia <beniamin.bia@analog.com> Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
27 lines
626 B
C
27 lines
626 B
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* AD7091RX Analog to Digital converter driver
|
|
*
|
|
* Copyright 2014-2019 Analog Devices Inc.
|
|
*/
|
|
|
|
#ifndef __DRIVERS_IIO_ADC_AD7091R_BASE_H__
|
|
#define __DRIVERS_IIO_ADC_AD7091R_BASE_H__
|
|
|
|
struct device;
|
|
struct ad7091r_state;
|
|
|
|
struct ad7091r_chip_info {
|
|
unsigned int num_channels;
|
|
const struct iio_chan_spec *channels;
|
|
unsigned int vref_mV;
|
|
};
|
|
|
|
extern const struct regmap_config ad7091r_regmap_config;
|
|
|
|
int ad7091r_probe(struct device *dev, const char *name,
|
|
const struct ad7091r_chip_info *chip_info,
|
|
struct regmap *map, int irq);
|
|
|
|
#endif /* __DRIVERS_IIO_ADC_AD7091R_BASE_H__ */
|