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authorRussell King <rmk@dyn-67.arm.linux.org.uk>2008-11-13 13:44:15 (GMT)
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-02-08 17:50:11 (GMT)
commit9a5fedac187f30116013a8420149d4ca11a44f0d (patch)
tree3cdcd9e8887a6fa41d1ddd85eb8c759990adc27b /arch/arm/plat-omap/clock.c
parenta9e882096317a088087b608d272da7029a6cc8c8 (diff)
downloadlinux-fsl-qoriq-9a5fedac187f30116013a8420149d4ca11a44f0d.tar.xz
[ARM] omap: move propagate_rate() calls into generic omap clock code
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>
Diffstat (limited to 'arch/arm/plat-omap/clock.c')
-rw-r--r--arch/arm/plat-omap/clock.c14
1 files changed, 9 insertions, 5 deletions
diff --git a/arch/arm/plat-omap/clock.c b/arch/arm/plat-omap/clock.c
index b7137c5..df58f5d 100644
--- a/arch/arm/plat-omap/clock.c
+++ b/arch/arm/plat-omap/clock.c
@@ -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);
+ }
}
}