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ac2df527fb
This patch adds common __clk_get(), __clk_put() clkdev helpers that replace their platform specific counterparts when the common clock API is used. The owner module pointer field is added to struct clk so a reference to the clock supplier module can be taken by the clock consumers. The owner module is assigned while the clock is being registered, in functions _clk_register() and __clk_register(). 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>
52 lines
1.1 KiB
C
52 lines
1.1 KiB
C
/*
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* include/linux/clkdev.h
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*
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* Copyright (C) 2008 Russell King.
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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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* Helper for the clk API to assist looking up a struct clk.
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*/
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#ifndef __CLKDEV_H
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#define __CLKDEV_H
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#include <asm/clkdev.h>
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struct clk;
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struct device;
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struct clk_lookup {
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struct list_head node;
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const char *dev_id;
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const char *con_id;
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struct clk *clk;
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};
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#define CLKDEV_INIT(d, n, c) \
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{ \
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.dev_id = d, \
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.con_id = n, \
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.clk = c, \
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}
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struct clk_lookup *clkdev_alloc(struct clk *clk, const char *con_id,
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const char *dev_fmt, ...);
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void clkdev_add(struct clk_lookup *cl);
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void clkdev_drop(struct clk_lookup *cl);
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void clkdev_add_table(struct clk_lookup *, size_t);
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int clk_add_alias(const char *, const char *, char *, struct device *);
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int clk_register_clkdev(struct clk *, const char *, const char *, ...);
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int clk_register_clkdevs(struct clk *, struct clk_lookup *, size_t);
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#ifdef CONFIG_COMMON_CLK
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int __clk_get(struct clk *clk);
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void __clk_put(struct clk *clk);
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#endif
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#endif
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