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authorLennert Buytenhek <buytenh@wantstofly.org>2006-06-22 10:30:53 +0100
committerRussell King <rmk+kernel@arm.linux.org.uk>2006-06-22 10:30:53 +0100
commitf869afab8f36c5f8561557f74b4b9846719092da (patch)
tree6a23d7981a3b06b9cd40ad99c1543d22f6a1d528 /arch/arm/mach-ixp23xx
parent84b61f6d3ad8a5761e61d83076588f64a289a574 (diff)
downloadop-kernel-dev-f869afab8f36c5f8561557f74b4b9846719092da.zip
op-kernel-dev-f869afab8f36c5f8561557f74b4b9846719092da.tar.gz
[ARM] 3616/1: fix timer handler wrap logic for a number of platforms
Patch from Lennert Buytenhek A couple of platforms aren't using the right comparison type in their timer interrupt handlers (as we're comparing two wrapping timestamps, we need a bmi/bpl-type comparison, not an unsigned comparison) -- this patch fixes them up. Signed-off-by: Lennert Buytenhek <buytenh@wantstofly.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/mach-ixp23xx')
-rw-r--r--arch/arm/mach-ixp23xx/core.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/mach-ixp23xx/core.c b/arch/arm/mach-ixp23xx/core.c
index affd1d5..e2aad73 100644
--- a/arch/arm/mach-ixp23xx/core.c
+++ b/arch/arm/mach-ixp23xx/core.c
@@ -334,7 +334,7 @@ void __init ixp23xx_init_irq(void)
/*************************************************************************
* Timer-tick functions for IXP23xx
*************************************************************************/
-#define CLOCK_TICKS_PER_USEC CLOCK_TICK_RATE / (USEC_PER_SEC)
+#define CLOCK_TICKS_PER_USEC (CLOCK_TICK_RATE / USEC_PER_SEC)
static unsigned long next_jiffy_time;
@@ -353,7 +353,7 @@ ixp23xx_timer_interrupt(int irq, void *dev_id, struct pt_regs *regs)
{
/* Clear Pending Interrupt by writing '1' to it */
*IXP23XX_TIMER_STATUS = IXP23XX_TIMER1_INT_PEND;
- while ((*IXP23XX_TIMER_CONT - next_jiffy_time) > LATCH) {
+ while ((signed long)(*IXP23XX_TIMER_CONT - next_jiffy_time) >= LATCH) {
timer_tick(regs);
next_jiffy_time += LATCH;
}
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