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2023-12-09 b22da3d8526a935aa31e086e63f60ff3246cb61c

 kernel/drivers/iio/buffer/industrialio-triggered-buffer.c
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@@ -1,10 +1,7 @@
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+// SPDX-License-Identifier: GPL-2.0-only
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  /*
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  * Copyright (c) 2012 Analog Devices, Inc.
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  *  Author: Lars-Peter Clausen <lars@metafoo.de>
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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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 #include <linux/kernel.h>
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@@ -15,11 +12,6 @@
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 #include <linux/iio/kfifo_buf.h>
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 #include <linux/iio/triggered_buffer.h>
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 #include <linux/iio/trigger_consumer.h>
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-
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-static const struct iio_buffer_setup_ops iio_triggered_buffer_setup_ops = {
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-	.postenable = &iio_triggered_buffer_postenable,
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-	.predisable = &iio_triggered_buffer_predisable,
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-};
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 /**
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  * iio_triggered_buffer_setup() - Setup triggered buffer and pollfunc
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@@ -70,10 +62,7 @@
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 	}
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 	/* Ring buffer functions - here trigger setup related */
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-	if (setup_ops)
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-		indio_dev->setup_ops = setup_ops;
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-	else
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-		indio_dev->setup_ops = &iio_triggered_buffer_setup_ops;
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+	indio_dev->setup_ops = setup_ops;
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 	/* Flag that polled ring buffering is possible */
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 	indio_dev->modes |= INDIO_BUFFER_TRIGGERED;
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@@ -128,17 +117,6 @@
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 	return ret;
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 }
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 EXPORT_SYMBOL_GPL(devm_iio_triggered_buffer_setup);
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-
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-void devm_iio_triggered_buffer_cleanup(struct device *dev,
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-				       struct iio_dev *indio_dev)
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-{
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-	int rc;
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-
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-	rc = devres_release(dev, devm_iio_triggered_buffer_clean,
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-			    devm_iio_device_match, indio_dev);
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-	WARN_ON(rc);
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-}
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-EXPORT_SYMBOL_GPL(devm_iio_triggered_buffer_cleanup);
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 MODULE_AUTHOR("Lars-Peter Clausen <lars@metafoo.de>");
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 MODULE_DESCRIPTION("IIO helper functions for setting up triggered buffers");