sh: clkfwk: add clk_set_parent/clk_get_parent

This patch adds the clk_set_parent/clk_get_parent routines to the sh
clock framework.

Signed-off-by: Francesco Virlinzi <francesco.virlinzi@st.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
diff --git a/arch/sh/include/asm/clock.h b/arch/sh/include/asm/clock.h
index f9c8858..2f6c962 100644
--- a/arch/sh/include/asm/clock.h
+++ b/arch/sh/include/asm/clock.h
@@ -15,6 +15,7 @@
 	void (*disable)(struct clk *clk);
 	void (*recalc)(struct clk *clk);
 	int (*set_rate)(struct clk *clk, unsigned long rate, int algo_id);
+	int (*set_parent)(struct clk *clk, struct clk *parent);
 	long (*round_rate)(struct clk *clk, unsigned long rate);
 };