add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/iio/iio_core_trigger.h
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@@ -1,11 +1,8 @@
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+/* SPDX-License-Identifier: GPL-2.0-only */
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 /* The industrial I/O core, trigger consumer handling functions
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  *
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  * Copyright (c) 2008 Jonathan Cameron
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- *
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- * This program is free software; you can redistribute it and/or modify it
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- * under the terms of the GNU General Public License version 2 as published by
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- * the Free Software Foundation.
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  */
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 #ifdef CONFIG_IIO_TRIGGER
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@@ -21,13 +18,19 @@
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  **/
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 void iio_device_unregister_trigger_consumer(struct iio_dev *indio_dev);
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+
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+int iio_trigger_attach_poll_func(struct iio_trigger *trig,
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+				 struct iio_poll_func *pf);
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+int iio_trigger_detach_poll_func(struct iio_trigger *trig,
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+				 struct iio_poll_func *pf);
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+
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 #else
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 /**
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  * iio_device_register_trigger_consumer() - set up an iio_dev to use triggers
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  * @indio_dev: iio_dev associated with the device that will consume the trigger
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  **/
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-static int iio_device_register_trigger_consumer(struct iio_dev *indio_dev)
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+static inline int iio_device_register_trigger_consumer(struct iio_dev *indio_dev)
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 {
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 	return 0;
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 }
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@@ -36,8 +39,19 @@
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  * iio_device_unregister_trigger_consumer() - reverse the registration process
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  * @indio_dev: iio_dev associated with the device that consumed the trigger
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  **/
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-static void iio_device_unregister_trigger_consumer(struct iio_dev *indio_dev)
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+static inline void iio_device_unregister_trigger_consumer(struct iio_dev *indio_dev)
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 {
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 }
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+static inline int iio_trigger_attach_poll_func(struct iio_trigger *trig,
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+					       struct iio_poll_func *pf)
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+{
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+	return 0;
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+}
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+static inline int iio_trigger_detach_poll_func(struct iio_trigger *trig,
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+					       struct iio_poll_func *pf)
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+{
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+	return 0;
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+}
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+
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 #endif /* CONFIG_TRIGGER_CONSUMER */