sh: clkfwk: refactor rate propagation.
This resyncs the rate propagation strategy with the scheme used by the
OMAP clock framework. Child clocks are tracked on a list under each
parent and propagation happens there specifically rather than constantly
iterating over the global clock list.
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 241f1c1..5dc8b73 100644
--- a/arch/sh/include/asm/clock.h
+++ b/arch/sh/include/asm/clock.h
@@ -27,6 +27,9 @@
struct clk *parent;
struct clk_ops *ops;
+ struct list_head children;
+ struct list_head sibling; /* node for children */
+
int usecount;
unsigned long rate;
@@ -35,7 +38,6 @@
};
#define CLK_ALWAYS_ENABLED (1 << 0)
-#define CLK_RATE_PROPAGATES (1 << 1)
#define CLK_NEEDS_INIT (1 << 2)
/* Should be defined by processor-specific code */
@@ -44,9 +46,10 @@
/* arch/sh/kernel/cpu/clock.c */
int clk_init(void);
-unsigned long followparent_recalc(struct clk *clk);
+unsigned long followparent_recalc(struct clk *);
+void recalculate_root_clocks(void);
+void propagate_rate(struct clk *);
void clk_recalc_rate(struct clk *);
-
int clk_register(struct clk *);
void clk_unregister(struct clk *);