d6782c2636
Add helper functions for the of_clk_providers list locking and an unlocked variant of of_clk_get_from_provider(). These functions are intended to be used in the clkdev to avoid race condition in the device tree based clock look up in clk_get(). Signed-off-by: Sylwester Nawrocki <s.nawrocki@samsung.com> Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com> Acked-by: Russell King <rmk+kernel@arm.linux.org.uk>
17 lines
510 B
C
17 lines
510 B
C
/*
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* linux/drivers/clk/clk.h
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*
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* Copyright (C) 2013 Samsung Electronics Co., Ltd.
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* Sylwester Nawrocki <s.nawrocki@samsung.com>
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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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#if defined(CONFIG_OF) && defined(CONFIG_COMMON_CLK)
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struct clk *__of_clk_get_from_provider(struct of_phandle_args *clkspec);
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void of_clk_lock(void);
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void of_clk_unlock(void);
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#endif
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