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linux-next/drivers/iio/humidity/hts221.h
Lorenzo Bianconi 621779220b iio: humidity: hts221: add regmap API support
Introduce regmap API support to access to i2c/spi bus instead of
using a custom support.
Remove lock mutex since concurrency is already managed by regmap API

Signed-off-by: Lorenzo Bianconi <lorenzo.bianconi@redhat.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
2018-01-30 18:33:18 +00:00

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C

/*
* STMicroelectronics hts221 sensor driver
*
* Copyright 2016 STMicroelectronics Inc.
*
* Lorenzo Bianconi <lorenzo.bianconi@st.com>
*
* Licensed under the GPL-2.
*/
#ifndef HTS221_H
#define HTS221_H
#define HTS221_DEV_NAME "hts221"
#include <linux/iio/iio.h>
#define HTS221_DATA_SIZE 2
enum hts221_sensor_type {
HTS221_SENSOR_H,
HTS221_SENSOR_T,
HTS221_SENSOR_MAX,
};
struct hts221_sensor {
u8 cur_avg_idx;
int slope, b_gen;
};
struct hts221_hw {
const char *name;
struct device *dev;
struct regmap *regmap;
struct iio_trigger *trig;
int irq;
struct hts221_sensor sensors[HTS221_SENSOR_MAX];
bool enabled;
u8 odr;
};
extern const struct dev_pm_ops hts221_pm_ops;
int hts221_probe(struct device *dev, int irq, const char *name,
struct regmap *regmap);
int hts221_set_enable(struct hts221_hw *hw, bool enable);
int hts221_allocate_buffers(struct hts221_hw *hw);
int hts221_allocate_trigger(struct hts221_hw *hw);
#endif /* HTS221_H */