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[ARM] omap: move propagate_rate() calls into generic omap clock code

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propagate_rate() is recursive, so it makes sense to minimise the
amount of stack which is used for each recursion.  So, rather than
recursing back into it from the ->recalc functions if RATE_PROPAGATES
is set, do that test at the higher level.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King
2008-11-13 13:44:15 +00:00
committed by Russell King
parent a9e8820963
commit 9a5fedac18
7 changed files with 11 additions and 40 deletions
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14
arch/arm/plat-omap/clock.c
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@@ -246,8 +246,6 @@ void followparent_recalc(struct clk *clk)
return;
clk->rate = clk->parent->rate;
if (unlikely(clk->flags & RATE_PROPAGATES))
propagate_rate(clk);
}
/* Propagate rate to children */
@@ -261,8 +259,10 @@ void propagate_rate(struct clk * tclk)
list_for_each_entry(clkp, &clocks, node) {
if (likely(clkp->parent != tclk))
continue;
if (likely((u32)clkp->recalc))
if (clkp->recalc)
clkp->recalc(clkp);
if (clkp->flags & RATE_PROPAGATES)
propagate_rate(clkp);
}
}
@@ -278,8 +278,12 @@ void recalculate_root_clocks(void)
struct clk *clkp;
list_for_each_entry(clkp, &clocks, node) {
if (unlikely(!clkp->parent) && likely((u32)clkp->recalc))
clkp->recalc(clkp);
if (!clkp->parent) {
if (clkp->recalc)
clkp->recalc(clkp);
if (clkp->flags & RATE_PROPAGATES)
propagate_rate(clkp);
}
}
}