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[ARM] 3359/1: S3C24XX - add support for clk_set_rate

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Patch from Ben Dooks

Add support for clk_set_rate and clk_round_rate to the
s3c2410 clock implementation

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Ben Dooks 2006-03-20 21:00:08 +00:00 committed by Russell King
parent d2a02b93cf
commit 6e8908edd5
2 changed files with 15 additions and 1 deletions
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14
arch/arm/mach-s3c2410/clock.c
View File

@ -180,12 +180,24 @@ unsigned long clk_get_rate(struct clk *clk)
long clk_round_rate(struct clk *clk, unsigned long rate)
{
if (!IS_ERR(clk) && clk->round_rate)
return (clk->round_rate)(clk, rate);
return rate;
}
int clk_set_rate(struct clk *clk, unsigned long rate)
{
return -EINVAL;
int ret;
if (IS_ERR(clk))
return -EINVAL;
mutex_lock(&clocks_mutex);
ret = (clk->set_rate)(clk, rate);
mutex_unlock(&clocks_mutex);
return ret;
}
struct clk *clk_get_parent(struct clk *clk)

2
arch/arm/mach-s3c2410/clock.h
View File

@ -21,6 +21,8 @@ struct clk {
unsigned long ctrlbit;
int (*enable)(struct clk *, int enable);
int (*set_rate)(struct clk *c, unsigned long rate);
unsigned long (*round_rate)(struct clk *c, unsigned long rate);
int (*set_parent)(struct clk *c, struct clk *parent);
};