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f22b1d7588
Since we put static variable to a header file it's copied to each module
that includes the header. But not all of them are actually used it.
Mark gyro_pdata with __maybe_unused to calm a compiler down:
In file included from drivers/iio/gyro/st_gyro_i2c.c:18:
drivers/iio/gyro/st_gyro.h:31:46: warning: ‘gyro_pdata’ defined but not used [-Wunused-const-variable=]
31 | static const struct st_sensors_platform_data gyro_pdata = {
| ^~~~~~~~~~
...
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
55 lines
1.6 KiB
C
55 lines
1.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* STMicroelectronics gyroscopes driver
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*
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* Copyright 2012-2013 STMicroelectronics Inc.
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*
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* Denis Ciocca <denis.ciocca@st.com>
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* v. 1.0.0
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*/
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#ifndef ST_GYRO_H
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#define ST_GYRO_H
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#include <linux/types.h>
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#include <linux/iio/common/st_sensors.h>
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#define L3G4200D_GYRO_DEV_NAME "l3g4200d"
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#define LSM330D_GYRO_DEV_NAME "lsm330d_gyro"
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#define LSM330DL_GYRO_DEV_NAME "lsm330dl_gyro"
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#define LSM330DLC_GYRO_DEV_NAME "lsm330dlc_gyro"
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#define L3GD20_GYRO_DEV_NAME "l3gd20"
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#define L3GD20H_GYRO_DEV_NAME "l3gd20h"
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#define L3G4IS_GYRO_DEV_NAME "l3g4is_ui"
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#define LSM330_GYRO_DEV_NAME "lsm330_gyro"
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#define LSM9DS0_GYRO_DEV_NAME "lsm9ds0_gyro"
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/**
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* struct st_sensors_platform_data - gyro platform data
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* @drdy_int_pin: DRDY on gyros is available only on INT2 pin.
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*/
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static __maybe_unused const struct st_sensors_platform_data gyro_pdata = {
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.drdy_int_pin = 2,
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};
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const struct st_sensor_settings *st_gyro_get_settings(const char *name);
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int st_gyro_common_probe(struct iio_dev *indio_dev);
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void st_gyro_common_remove(struct iio_dev *indio_dev);
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#ifdef CONFIG_IIO_BUFFER
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int st_gyro_allocate_ring(struct iio_dev *indio_dev);
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void st_gyro_deallocate_ring(struct iio_dev *indio_dev);
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int st_gyro_trig_set_state(struct iio_trigger *trig, bool state);
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#define ST_GYRO_TRIGGER_SET_STATE (&st_gyro_trig_set_state)
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#else /* CONFIG_IIO_BUFFER */
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static inline int st_gyro_allocate_ring(struct iio_dev *indio_dev)
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{
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return 0;
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}
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static inline void st_gyro_deallocate_ring(struct iio_dev *indio_dev)
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{
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}
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#define ST_GYRO_TRIGGER_SET_STATE NULL
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#endif /* CONFIG_IIO_BUFFER */
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#endif /* ST_GYRO_H */
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