[PATCH 3/3] HPET: Read from HPET_Tn_CMP() not HPET_T0_CMP

[Matt Fleming]

In hpet_next_event() we check that the value we just wrote to
HPET_Tn_CMP(timer) has reached the chip. Currently, we're checking that
the value we wrote to HPET_Tn_CMP(timer) is in HPET_T0_CMP, which, if
timer is anything other than timer 0, is likely to fail.

Signed-off-by: Matt Fleming <mjf@xxxxxxxxxx>
---
 arch/x86/kernel/hpet.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kernel/hpet.c b/arch/x86/kernel/hpet.c
index c28fff2..76feb2e 100644
--- a/arch/x86/kernel/hpet.c
+++ b/arch/x86/kernel/hpet.c
@@ -322,7 +322,7 @@ static int hpet_next_event(unsigned long delta,
 	 * what we wrote hit the chip before we compare it to the
 	 * counter.
 	 */
-	WARN_ON_ONCE((u32)hpet_readl(HPET_T0_CMP) != cnt);
+	WARN_ON_ONCE((u32)hpet_readl(HPET_Tn_CMP(timer)) != cnt);
 
 	return (s32)((u32)hpet_readl(HPET_COUNTER) - cnt) >= 0 ? -ETIME : 0;
 }
-- 
1.5.6.4

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