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Commit be5f34b7 authored by Paul Walmsley's avatar Paul Walmsley Committed by Russell King
Browse files

[ARM] OMAP clock: drop clk_get_usecount() 



This function is race-prone and mistakenly conveys the impression to
drivers that it is part of the clock interface.  Get rid of it: core
code that absolutely needs this can just check clk->usecount.  Drivers
should not use it at all.

linux-omap source commit is 5df9e4adc2f6a6d55aca53ee27b8baad18897c05.

Signed-off-by: default avatarPaul Walmsley <paul@pwsan.com>
Signed-off-by: default avatarTony Lindgren <tony@atomide.com>
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent f11fda6a

arch/arm/plat-omap/clock.c

+0 −16
Original line number Diff line number Diff line
@@ -76,22 +76,6 @@ void clk_disable(struct clk *clk) 
}

EXPORT_SYMBOL(clk_disable);



int clk_get_usecount(struct clk *clk)

{

	unsigned long flags;

	int ret = 0;



	if (clk == NULL || IS_ERR(clk))

		return 0;



	spin_lock_irqsave(&clockfw_lock, flags);

	ret = clk->usecount;

	spin_unlock_irqrestore(&clockfw_lock, flags);



	return ret;

}

EXPORT_SYMBOL(clk_get_usecount);



unsigned long clk_get_rate(struct clk *clk)

{

	unsigned long flags;

arch/arm/plat-omap/include/mach/clock.h

+0 −1
Original line number Diff line number Diff line
@@ -124,7 +124,6 @@ extern void clk_unregister(struct clk *clk); 
extern void propagate_rate(struct clk *clk);

extern void recalculate_root_clocks(void);

extern void followparent_recalc(struct clk *clk);

extern int clk_get_usecount(struct clk *clk);

extern void clk_enable_init_clocks(void);

#ifdef CONFIG_CPU_FREQ

extern void clk_init_cpufreq_table(struct cpufreq_frequency_table **table);