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1// SPDX-License-Identifier: GPL-2.0-only2/*3 * STMicroelectronics pressures driver4 *5 * Copyright 2013 STMicroelectronics Inc.6 *7 * Denis Ciocca <denis.ciocca@st.com>8 */9 10#include <linux/kernel.h>11#include <linux/iio/iio.h>12#include <linux/iio/buffer.h>13#include <linux/iio/trigger.h>14#include <linux/iio/triggered_buffer.h>15 16#include <linux/iio/common/st_sensors.h>17#include "st_pressure.h"18 19int st_press_trig_set_state(struct iio_trigger *trig, bool state)20{21 struct iio_dev *indio_dev = iio_trigger_get_drvdata(trig);22 23 return st_sensors_set_dataready_irq(indio_dev, state);24}25 26static int st_press_buffer_postenable(struct iio_dev *indio_dev)27{28 return st_sensors_set_enable(indio_dev, true);29}30 31static int st_press_buffer_predisable(struct iio_dev *indio_dev)32{33 return st_sensors_set_enable(indio_dev, false);34}35 36static const struct iio_buffer_setup_ops st_press_buffer_setup_ops = {37 .postenable = &st_press_buffer_postenable,38 .predisable = &st_press_buffer_predisable,39};40 41int st_press_allocate_ring(struct iio_dev *indio_dev)42{43 return devm_iio_triggered_buffer_setup(indio_dev->dev.parent, indio_dev,44 NULL, &st_sensors_trigger_handler, &st_press_buffer_setup_ops);45}46