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ARM: SAMSUNG: Do not allow get/set/round rate calls with no divider 

If the reg_div field is not set, then do not register clk_ops with the
get/set/round rate calls as these will fail to work.

Signed-off-by: Ben Dooks <ben-linux@fluff.org>
This commit is contained in:
Ben Dooks 2010-01-06 01:07:57 +09:00 committed by Ben Dooks
parent 2c2f69b15d
commit fb6e76cd23
1 changed files with 13 additions and 2 deletions
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15
arch/arm/plat-samsung/clock-clksrc.c
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@ -158,14 +158,25 @@ static struct clk_ops clksrc_ops = {
.round_rate = s3c_roundrate_clksrc,
};
static struct clk_ops clksrc_ops_nodiv = {
.set_parent = s3c_setparent_clksrc,
};
void __init s3c_register_clksrc(struct clksrc_clk *clksrc, int size)
{
int ret;
WARN_ON(!clksrc->reg_div.reg && !clksrc->reg_src.reg);
for (; size > 0; size--, clksrc++) {
/* fill in the default functions */
if (!clksrc->clk.ops)
clksrc->clk.ops = &clksrc_ops;
if (!clksrc->clk.ops) {
if (!clksrc->reg_div.reg)
clksrc->clk.ops = &clksrc_ops_nodiv;
else
clksrc->clk.ops = &clksrc_ops;
}
/* setup the clocksource, but do not announce it
* as it may be re-set by the setup routines