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Commit fe04d779 authored by Paul Mundt's avatar Paul Mundt
Browse files

sh: Support rate rounding for SH7722 FRQCR clocks. 



Now that the round_rate() op is supported, hook it up on SH7722
for the FRQCR (CPU, PCLK, etc.) clocks.

Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent f6991b04

arch/sh/kernel/cpu/sh4a/clock-sh7722.c

+15 −0
Original line number Diff line number Diff line
@@ -387,9 +387,24 @@ out_err: 
	return err;

}



static long sh7722_frqcr_round_rate(struct clk *clk, unsigned long rate)

{

	unsigned long parent_rate = clk->parent->rate;

	int div;



	/* look for multiplier/divisor pair */

	div = sh7722_find_divisors(parent_rate, rate);

	if (div < 0)

		return clk->rate;



	/* calculate new value of clock rate */

	return parent_rate * 2 / div;

}



static struct clk_ops sh7722_frqcr_clk_ops = {

	.recalc = sh7722_frqcr_recalc,

	.set_rate = sh7722_frqcr_set_rate,

	.round_rate = sh7722_frqcr_round_rate,

};



/*