f840cbed7a
Up to now ms5611_remove() returns zero unconditionally. Make it return void instead which makes it easier to see in the callers that there is no error to handle. Also the return value of i2c and spi remove callbacks is ignored anyway. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Alexandru Ardelean <ardeleanalex@gmail.com> Link: https://lore.kernel.org/r/20211013203223.2694577-16-u.kleine-koenig@pengutronix.de Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
67 lines
1.4 KiB
C
67 lines
1.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
|
|
/*
|
|
* MS5611 pressure and temperature sensor driver
|
|
*
|
|
* Copyright (c) Tomasz Duszynski <tduszyns@gmail.com>
|
|
*
|
|
*/
|
|
|
|
#ifndef _MS5611_H
|
|
#define _MS5611_H
|
|
|
|
#include <linux/device.h>
|
|
#include <linux/iio/iio.h>
|
|
#include <linux/mutex.h>
|
|
|
|
struct regulator;
|
|
|
|
#define MS5611_RESET 0x1e
|
|
#define MS5611_READ_ADC 0x00
|
|
#define MS5611_READ_PROM_WORD 0xA0
|
|
#define MS5611_PROM_WORDS_NB 8
|
|
|
|
enum {
|
|
MS5611,
|
|
MS5607,
|
|
};
|
|
|
|
struct ms5611_chip_info {
|
|
u16 prom[MS5611_PROM_WORDS_NB];
|
|
|
|
int (*temp_and_pressure_compensate)(struct ms5611_chip_info *chip_info,
|
|
s32 *temp, s32 *pressure);
|
|
};
|
|
|
|
/*
|
|
* OverSampling Rate descriptor.
|
|
* Warning: cmd MUST be kept aligned on a word boundary (see
|
|
* m5611_spi_read_adc_temp_and_pressure in ms5611_spi.c).
|
|
*/
|
|
struct ms5611_osr {
|
|
unsigned long conv_usec;
|
|
u8 cmd;
|
|
unsigned short rate;
|
|
};
|
|
|
|
struct ms5611_state {
|
|
void *client;
|
|
struct mutex lock;
|
|
|
|
const struct ms5611_osr *pressure_osr;
|
|
const struct ms5611_osr *temp_osr;
|
|
|
|
int (*reset)(struct device *dev);
|
|
int (*read_prom_word)(struct device *dev, int index, u16 *word);
|
|
int (*read_adc_temp_and_pressure)(struct device *dev,
|
|
s32 *temp, s32 *pressure);
|
|
|
|
struct ms5611_chip_info *chip_info;
|
|
struct regulator *vdd;
|
|
};
|
|
|
|
int ms5611_probe(struct iio_dev *indio_dev, struct device *dev,
|
|
const char *name, int type);
|
|
void ms5611_remove(struct iio_dev *indio_dev);
|
|
|
|
#endif /* _MS5611_H */
|