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Commit f6991b04 authored by Paul Mundt's avatar Paul Mundt
Browse files

sh: Implement clk_round_rate() in the clock framework. 



This is an optional component of the clock framework. However,
as we're going to be using this in the cpufreq drivers, add
support for it to the framework.

Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent 39c7aa9e

arch/sh/kernel/cpu/clock.c

+16 −0
Original line number Diff line number Diff line
@@ -229,6 +229,22 @@ void clk_recalc_rate(struct clk *clk) 
}

EXPORT_SYMBOL_GPL(clk_recalc_rate);



long clk_round_rate(struct clk *clk, unsigned long rate)

{

	if (likely(clk->ops && clk->ops->round_rate)) {

		unsigned long flags, rounded;



		spin_lock_irqsave(&clock_lock, flags);

		rounded = clk->ops->round_rate(clk, rate);

		spin_unlock_irqrestore(&clock_lock, flags);



		return rounded;

	}



	return clk_get_rate(clk);

}

EXPORT_SYMBOL_GPL(clk_round_rate);



/*

 * Returns a clock. Note that we first try to use device id on the bus

 * and clock name. If this fails, we try to use clock name only.

include/asm-sh/clock.h

+1 −0
Original line number Diff line number Diff line
@@ -14,6 +14,7 @@ struct clk_ops { 
	void (*disable)(struct clk *clk);

	void (*recalc)(struct clk *clk);

	int (*set_rate)(struct clk *clk, unsigned long rate, int algo_id);

	long (*round_rate)(struct clk *clk, unsigned long rate);

};



struct clk {