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authorPaul Walmsley <paul@pwsan.com>2009-01-28 12:35:31 -0700
committerRussell King <rmk+kernel@arm.linux.org.uk>2009-02-08 17:50:47 +0000
commit883992bd8f6924c9aa849f2dac381075e2e55a9d (patch)
tree30440178d023c8e1334e4e46aa0965906044792d /arch/arm/mach-omap2/clock34xx.c
parent8263e5b31eae2bbf689ff08a7da334329c9f353b (diff)
downloadop-kernel-dev-883992bd8f6924c9aa849f2dac381075e2e55a9d.zip
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[ARM] OMAP2/3 clock: don't tinker with hardirqs when they are supposed to be disabled
Clock rate change code executes inside a spinlock with hardirqs disabled. The only code that should be messing around with the hardirq state should be the plat-omap/clock.c code. In the omap2_reprogram_dpllcore() case, this probably just wastes cycles, but in the omap3_core_dpll_m2_set_rate() case, this is a nasty bug. linux-omap source commit is b9b6208dadb5e0d8b290900a3ffa911673ca97ed. Signed-off-by: Paul Walmsley <paul@pwsan.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-omap2/clock34xx.c')
-rw-r--r--arch/arm/mach-omap2/clock34xx.c2
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/arm/mach-omap2/clock34xx.c b/arch/arm/mach-omap2/clock34xx.c
index a853b1e..3b6e27b 100644
--- a/arch/arm/mach-omap2/clock34xx.c
+++ b/arch/arm/mach-omap2/clock34xx.c
@@ -686,10 +686,8 @@ static int omap3_core_dpll_m2_set_rate(struct clk *clk, unsigned long rate)
WARN_ON(new_div != 1 && new_div != 2);
/* REVISIT: Add SDRC_MR changing to this code also */
- local_irq_disable();
omap3_configure_core_dpll(sp->rfr_ctrl, sp->actim_ctrla,
sp->actim_ctrlb, new_div);
- local_irq_enable();
return 0;
}
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