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sh: clkfwk: Fix up the clk_enable() error path.

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There are a couple of instances where a clk_enable() can fail, which the
SH-Mobile code presently handles, but doesn't get reported all the way
back up. This fixes up the return type so the errors make it all the way
down to the drivers.

Additionally, we now also error out properly if the parent enable fails.
Prep work for aggressively turning off unused clocks on boot.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt
2009-05-12 05:30:10 +09:00
parent 154502e160
commit ae891a4264
3 changed files with 58 additions and 36 deletions
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2
arch/sh/include/asm/clock.h
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@@ -10,7 +10,7 @@ struct clk;
struct clk_ops {
void (*init)(struct clk *clk);
void (*enable)(struct clk *clk);
int (*enable)(struct clk *clk);
void (*disable)(struct clk *clk);
unsigned long (*recalc)(struct clk *clk);
int (*set_rate)(struct clk *clk, unsigned long rate, int algo_id);