From: Christian Borntraeger <borntraeger@de.ibm.com>
Date: Mon, 5 Nov 2007 10:10:14 +0000 (+0100)
Subject: [S390] tod clock: announce clocksource as perfect
X-Git-Tag: v2.6.24-rc2~32^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=d2cb0e6ecbe0ef93ab36631cd17ec6cf92b69c5a;p=pandora-kernel.git

[S390] tod clock: announce clocksource as perfect

The Time of Day clock is the standard time source for s390. It is
- monotonic
- allows very fast reading
- architecture guarantees at least microsecond stepping
- available as part of the architecture

We should announce the rate of tod as 400 to be in sync with the
description found in clocksource.h:
"400-499:Perfect The ideal clocksource. A must-use where available."

This change will prefer tod over less reliable clock sources.

Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
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