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authorPaul Mundt <lethal@linux-sh.org>2007-07-20 13:29:09 +0900
committerPaul Mundt <lethal@linux-sh.org>2007-07-20 13:29:09 +0900
commitf6991b0456416186b578d38717efcda2b012b79c (patch)
tree6adebd4c26abed39fe5b4db65dc3398cd09b9236 /arch/sh/kernel/cpu
parent39c7aa9ea9b6175f4313f69ef9f8e0a3a9bba5bb (diff)
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: Paul Mundt <lethal@linux-sh.org>
Diffstat (limited to 'arch/sh/kernel/cpu')
-rw-r--r--arch/sh/kernel/cpu/clock.c16
1 files changed, 16 insertions, 0 deletions
diff --git a/arch/sh/kernel/cpu/clock.c b/arch/sh/kernel/cpu/clock.c
index 63251549e9a..92807ffa8e2 100644
--- a/arch/sh/kernel/cpu/clock.c
+++ b/arch/sh/kernel/cpu/clock.c
@@ -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.