[PATCH] hpet: drop stale link

From: Michael S. Tsirkin
Date: Mon Feb 01 2016 - 06:33:08 EST


Looks like the HPET spec at intel.com got moved.
It isn't hard to find so drop the link, just mention
the revision assumed.

Suggested-by: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx>
---
drivers/char/hpet.c | 2 +-
Documentation/timers/hpet.txt | 2 +-
arch/x86/Kconfig | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index 240b6cf..86c5f4d 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -42,7 +42,7 @@
/*
* The High Precision Event Timer driver.
* This driver is closely modelled after the rtc.c driver.
- * http://www.intel.com/hardwaredesign/hpetspec_1.pdf
+ * http://www.intel.com/content/dam/www/public/us/en/documents/technical-specifications/software-developers-hpet-spec-1-0a.pdf
*/
#define HPET_USER_FREQ (64)
#define HPET_DRIFT (500)
diff --git a/Documentation/timers/hpet.txt b/Documentation/timers/hpet.txt
index 767392f..f24e978 100644
--- a/Documentation/timers/hpet.txt
+++ b/Documentation/timers/hpet.txt
@@ -3,7 +3,7 @@
The High Precision Event Timer (HPET) hardware follows a specification
by Intel and Microsoft which can be found at

- http://www.intel.com/hardwaredesign/hpetspec_1.pdf
+http://www.intel.com/content/dam/www/public/us/en/documents/technical-specifications/software-developers-hpet-spec-1-0a.pdf

Each HPET has one fixed-rate counter (at 10+ MHz, hence "High Precision")
and up to 32 comparators. Normally three or more comparators are provided,
diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index 9af2e63..f32faba 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -778,7 +778,7 @@ config HPET_TIMER
The HPET provides a stable time base on SMP
systems, unlike the TSC, but it is more expensive to access,
as it is off-chip. You can find the HPET spec at
- <http://www.intel.com/hardwaredesign/hpetspec_1.pdf>.
+ <http://www.intel.com/content/dam/www/public/us/en/documents/technical-specifications/software-developers-hpet-spec-1-0a.pdf>.

You can safely choose Y here. However, HPET will only be
activated if the platform and the BIOS support this feature.
--
MST