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b52f4914f3
If CONFIG_COMMON_CLK is selected then __clk_get and __clk_put are
defined in drivers/clk/clk.c and declared in include/linux/clkdev.h.
Sylwester's series[0] to properly support clk_{get,put} in the common
clock framework made changes to the asm-specific clkdev.h headers, but
not the asm-generic version. Tomeu's recent changes[1] to introduce a
provider/consumer split in the clock framework uncovered this problem,
causing the following build error on any architecture using the
asm-generic clkdev.h (e.g. x86 architecture and the ACPI LPSS driver):
In file included from drivers/acpi/acpi_lpss.c:15:0:
include/linux/clkdev.h:59:5: error: conflicting types for ‘__clk_get’
int __clk_get(struct clk_core *clk);
^
In file included from arch/x86/include/generated/asm/clkdev.h:1:0,
from include/linux/clkdev.h:15,
from drivers/acpi/acpi_lpss.c:15:
include/asm-generic/clkdev.h:20:19: note: previous definition of ‘__clk_get’ was here
static inline int __clk_get(struct clk *clk) { return 1; }
^
Fixed by only declarating __clk_get and __clk_put when
CONFIG_COMMON_CLK is set.
[0] http://lkml.kernel.org/r/<1386177127-2894-5-git-send-email-s.nawrocki@samsung.com>
[1] http://lkml.kernel.org/r/<1409758148-20104-1-git-send-email-tomeu.vizoso@collabora.com>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
31 lines
706 B
C
31 lines
706 B
C
/*
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* include/asm-generic/clkdev.h
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*
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* Based on the ARM clkdev.h:
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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 __ASM_CLKDEV_H
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#define __ASM_CLKDEV_H
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#include <linux/slab.h>
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#ifndef CONFIG_COMMON_CLK
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struct clk;
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static inline int __clk_get(struct clk *clk) { return 1; }
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static inline void __clk_put(struct clk *clk) { }
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#endif
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static inline struct clk_lookup_alloc *__clkdev_alloc(size_t size)
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{
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return kzalloc(size, GFP_KERNEL);
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}
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#endif
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