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>
33 lines
755 B
C
33 lines
755 B
C
/*
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* Copyright (C) 2010 Paul Mundt <lethal@linux-sh.org>
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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 <linux/bootmem.h>
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#include <linux/mm.h>
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#include <linux/slab.h>
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#include <asm/clock.h>
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static inline struct clk_lookup_alloc *__clkdev_alloc(size_t size)
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{
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if (!slab_is_available())
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return alloc_bootmem_low_pages(size);
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else
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return kzalloc(size, GFP_KERNEL);
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}
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#ifndef CONFIG_COMMON_CLK
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#define __clk_put(clk)
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#define __clk_get(clk) ({ 1; })
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#endif
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#endif /* __CLKDEV_H__ */
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