Patch from Ben Dooks
Add a get_rate call to allow an given clock
to over-ride the clk_get_rate() call.
This provides support for clocks which rely on
division of their parent to correctly report
their frequency when the parent can also change.
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
if (clk->rate != 0)
return clk->rate;
- while (clk->parent != NULL && clk->rate == 0)
- clk = clk->parent;
+ if (clk->get_rate != NULL)
+ return (clk->get_rate)(clk);
+
+ if (clk->parent != NULL)
+ return clk_get_rate(clk->parent);
return clk->rate;
}
int (*enable)(struct clk *, int enable);
int (*set_rate)(struct clk *c, unsigned long rate);
+ unsigned long (*get_rate)(struct clk *c);
unsigned long (*round_rate)(struct clk *c, unsigned long rate);
int (*set_parent)(struct clk *c, struct clk *parent);
};