2 files changed, 17 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.
diff --git a/include/asm-sh/clock.h b/include/asm-sh/clock.h
index 386d797d86b..b550a27a704 100644
--- a/include/asm-sh/clock.h
+++ b/include/asm-sh/clock.h
@@ -14,6 +14,7 @@ struct clk_ops {
         void (*disable)(struct clk *clk);
         void (*recalc)(struct clk *clk);
         int (*set_rate)(struct clk *clk, unsigned long rate, int algo_id);
+        long (*round_rate)(struct clk *clk, unsigned long rate);
 };
 
 struct clk {