9b090a98e9
When CONFIG_IIO_TRIGGER is enabled but CONFIG_IIO_BUFFER is
not, we get a build error in the st_magn driver:
drivers/iio/magnetometer/st_magn_core.c:573:23: error: 'ST_MAGN_TRIGGER_SET_STATE' undeclared here (not in a function)
.set_trigger_state = ST_MAGN_TRIGGER_SET_STATE,
^~~~~~~~~~~~~~~~~~~~~~~~~
Apparently, this ST_MAGN_TRIGGER_SET_STATE macro was meant to
be set to NULL when the definition is not available because
st_magn_buffer.c is not compiled, but the alternative definition
was not included in the original patch. This adds it.
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Fixes: 74f5683f35 ("iio: st_magn: Add irq trigger handling")
Acked-by: Denis Ciocca <denis.ciocca@st.com>
Cc: <Stable@vger.kernel.org>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
51 lines
1.3 KiB
C
51 lines
1.3 KiB
C
/*
|
|
* STMicroelectronics magnetometers driver
|
|
*
|
|
* Copyright 2012-2013 STMicroelectronics Inc.
|
|
*
|
|
* Denis Ciocca <denis.ciocca@st.com>
|
|
* v. 1.0.0
|
|
* Licensed under the GPL-2.
|
|
*/
|
|
|
|
#ifndef ST_MAGN_H
|
|
#define ST_MAGN_H
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/iio/common/st_sensors.h>
|
|
|
|
#define LSM303DLH_MAGN_DEV_NAME "lsm303dlh_magn"
|
|
#define LSM303DLHC_MAGN_DEV_NAME "lsm303dlhc_magn"
|
|
#define LSM303DLM_MAGN_DEV_NAME "lsm303dlm_magn"
|
|
#define LIS3MDL_MAGN_DEV_NAME "lis3mdl"
|
|
#define LSM303AGR_MAGN_DEV_NAME "lsm303agr_magn"
|
|
|
|
int st_magn_common_probe(struct iio_dev *indio_dev);
|
|
void st_magn_common_remove(struct iio_dev *indio_dev);
|
|
|
|
#ifdef CONFIG_IIO_BUFFER
|
|
int st_magn_allocate_ring(struct iio_dev *indio_dev);
|
|
void st_magn_deallocate_ring(struct iio_dev *indio_dev);
|
|
int st_magn_trig_set_state(struct iio_trigger *trig, bool state);
|
|
#define ST_MAGN_TRIGGER_SET_STATE (&st_magn_trig_set_state)
|
|
#else /* CONFIG_IIO_BUFFER */
|
|
static inline int st_magn_probe_trigger(struct iio_dev *indio_dev, int irq)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline void st_magn_remove_trigger(struct iio_dev *indio_dev, int irq)
|
|
{
|
|
return;
|
|
}
|
|
static inline int st_magn_allocate_ring(struct iio_dev *indio_dev)
|
|
{
|
|
return 0;
|
|
}
|
|
static inline void st_magn_deallocate_ring(struct iio_dev *indio_dev)
|
|
{
|
|
}
|
|
#define ST_MAGN_TRIGGER_SET_STATE NULL
|
|
#endif /* CONFIG_IIO_BUFFER */
|
|
|
|
#endif /* ST_MAGN_H */
|