From: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Date: Fri, 15 Feb 2013 07:58:14 +0000 (+0900)
Subject: timers/x86/hpet: Use HPET_COUNTER to specify the hpet counter in vread_hpet()
X-Git-Tag: upstream/snapshot3+hdmi~5739^2
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=36dfbbf136db0d645bacfd42ce7d9d6928ea532d;p=platform%2Fadaptation%2Frenesas_rcar%2Frenesas_kernel.git

timers/x86/hpet: Use HPET_COUNTER to specify the hpet counter in vread_hpet()

vread_hpet() uses "0xf0" as the offset of the hpet counter. To
clarify the meaning of this code, it should use symbolic name,
HPET_COUNTER, instead.

Signed-off-by: Satoru Takeuchi <takeuchi_satoru@jp.fujitsu.com>
Cc: H. Peter Anvin <hpa@linux.intel.com>
Cc: "H. Peter Anvin" <hpa@zytor.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
---

diff --git a/arch/x86/vdso/vclock_gettime.c b/arch/x86/vdso/vclock_gettime.c
index 205ad32..c74436e 100644
--- a/arch/x86/vdso/vclock_gettime.c
+++ b/arch/x86/vdso/vclock_gettime.c
@@ -60,7 +60,7 @@ notrace static cycle_t vread_tsc(void)
 
 static notrace cycle_t vread_hpet(void)
 {
-	return readl((const void __iomem *)fix_to_virt(VSYSCALL_HPET) + 0xf0);
+	return readl((const void __iomem *)fix_to_virt(VSYSCALL_HPET) + HPET_COUNTER);
 }
 
 #ifdef CONFIG_PARAVIRT_CLOCK