sh: clkfwk: Improve the generic clk_set_parent() implementation.

This causes the generic clk_set_parent() implementation to be a bit more
intelligent. A clk_reparent() is added to move the clock over to the new
parent's sibling list, which then allows the generic rate propagation
code to succeed. This also becomes a nop if the new and old parents are
unchanged.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

1 files changed, 1 insertions, 0 deletions

diff --git a/arch/sh/include/asm/clock.h b/arch/sh/include/asm/clock.h
index 5de72eef9724..fdb915608dbc 100644
--- a/arch/sh/include/asm/clock.h
+++ b/arch/sh/include/asm/clock.h
@@ -48,6 +48,7 @@ int clk_init(void);
 unsigned long followparent_recalc(struct clk *);
 void recalculate_root_clocks(void);
 void propagate_rate(struct clk *);
+int clk_reparent(struct clk *child, struct clk *parent);
 void clk_recalc_rate(struct clk *);
 int clk_register(struct clk *);
 void clk_unregister(struct clk *);