sh: clkfwk: rate table construction and rounding for SH7785.

This adds support for constructing a rate table by looking at potential
divisors for a specified clock. Each FQRMR clock is given its own table.
Presently each table is rebuilt when the parent propagates down a new
rate, so some more logic needs to be added to do this more intelligently.

Additionally, a fairly generic round_rate() implementation is then
layered on top of it, which subsequently provides us with cpufreq support.

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 40cf3c07d7e..da681de1500 100644
--- a/arch/sh/include/asm/clock.h
+++ b/arch/sh/include/asm/clock.h
@@ -16,6 +16,7 @@ struct clk_ops {
 	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);
+	void (*build_rate_table)(struct clk *clk);
 };
 
 struct clk {