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ARM: S3C2443: Add get_rate operation for clk_armdiv 

Signed-off-by: Heiko Stuebner <heiko@sntech.de>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
This commit is contained in:
Heiko Stuebner 2011-10-14 15:08:56 +09:00 committed by Kukjin Kim
parent efb1fb486a
commit 5f33bd76f5
1 changed files with 14 additions and 0 deletions
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14
arch/arm/plat-s3c24xx/s3c2443-clock.c
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@ -189,6 +189,19 @@ static unsigned long s3c2443_armclk_roundrate(struct clk *clk,
return parent / best; return parent / best;
} }
static unsigned long s3c2443_armclk_getrate(struct clk *clk)
{
unsigned long rate = clk_get_rate(clk->parent);
unsigned long clkcon0;
int val;
clkcon0 = __raw_readl(S3C2443_CLKDIV0);
clkcon0 &= armdivmask;
val = clkcon0 >> S3C2443_CLKDIV0_ARMDIV_SHIFT;
return rate / armdiv[val];
}
static int s3c2443_armclk_setrate(struct clk *clk, unsigned long rate) static int s3c2443_armclk_setrate(struct clk *clk, unsigned long rate)
{ {
unsigned long parent = clk_get_rate(clk->parent); unsigned long parent = clk_get_rate(clk->parent);
@ -224,6 +237,7 @@ static struct clk clk_armdiv = {
.parent = &clk_msysclk.clk, .parent = &clk_msysclk.clk,
.ops = &(struct clk_ops) { .ops = &(struct clk_ops) {
.round_rate = s3c2443_armclk_roundrate, .round_rate = s3c2443_armclk_roundrate,
.get_rate = s3c2443_armclk_getrate,
.set_rate = s3c2443_armclk_setrate, .set_rate = s3c2443_armclk_setrate,
}, },
}; };