44 lines
1.2 KiB
C
44 lines
1.2 KiB
C
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (c) Samsung Electronics Co., Ltd.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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*/
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#include <linux/notifier.h>
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#include <linux/export.h>
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static BLOCKING_NOTIFIER_HEAD(panel_notifier_list);
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/**
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* panel_notifier_register - register a client notifier
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* @nb: notifier block to callback on events
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*/
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int panel_notifier_register(struct notifier_block *nb)
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{
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return blocking_notifier_chain_register(&panel_notifier_list, nb);
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}
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EXPORT_SYMBOL(panel_notifier_register);
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/**
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* panel_notifier_unregister - unregister a client notifier
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* @nb: notifier block to callback on events
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*/
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int panel_notifier_unregister(struct notifier_block *nb)
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{
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return blocking_notifier_chain_unregister(&panel_notifier_list, nb);
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}
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EXPORT_SYMBOL(panel_notifier_unregister);
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/**
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* panel_notifier_call_chain - notify clients
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*
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*/
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int panel_notifier_call_chain(unsigned long val, void *v)
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{
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return blocking_notifier_call_chain(&panel_notifier_list, val, v);
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}
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EXPORT_SYMBOL_GPL(panel_notifier_call_chain);
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