// SPDX-License-Identifier: GPL-2.0-only/* * STMicroelectronics accelerometers driver * * Copyright 2012-2013 STMicroelectronics Inc. * * Denis Ciocca <denis.ciocca@st.com> */ #include <linux/kernel.h>#include <linux/iio/iio.h>#include <linux/iio/buffer.h>#include <linux/iio/trigger.h>#include <linux/iio/triggered_buffer.h> #include <linux/iio/common/st_sensors.h>#include "st_accel.h" int st_accel_trig_set_state(struct iio_trigger *trig, bool state){	struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig); 	return st_sensors_set_dataready_irq(indio_dev, state);} static int st_accel_buffer_postenable(struct iio_dev *indio_dev){	int err; 	err = st_sensors_set_axis_enable(indio_dev, indio_dev->active_scan_mask[0]);	if (err < 0)		return err; 	err = st_sensors_set_enable(indio_dev, true);	if (err < 0)		goto st_accel_buffer_enable_all_axis; 	return 0; st_accel_buffer_enable_all_axis:	st_sensors_set_axis_enable(indio_dev, ST_SENSORS_ENABLE_ALL_AXIS);	return err;} static int st_accel_buffer_predisable(struct iio_dev *indio_dev){	int err; 	err = st_sensors_set_enable(indio_dev, false);	if (err < 0)		return err; 	return st_sensors_set_axis_enable(indio_dev,					  ST_SENSORS_ENABLE_ALL_AXIS);} static const struct iio_buffer_setup_ops st_accel_buffer_setup_ops = {	.postenable = &st_accel_buffer_postenable,	.predisable = &st_accel_buffer_predisable,}; int st_accel_allocate_ring(struct iio_dev *indio_dev){	return devm_iio_triggered_buffer_setup(indio_dev->dev.parent, indio_dev,		NULL, &st_sensors_trigger_handler, &st_accel_buffer_setup_ops);}