linux-kernel - Re: x86: GEODE fix MFGPT input clock value

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Date:	Thu, 24 Jan 2008 00:17:53 +0100
From:	Arnd Hannemann <hannemann@...informatik.rwth-aachen.de>
To:	Jordan Crouse <jordan.crouse@....com>
CC:	Willy Tarreau <w@....eu>, "H. Peter Anvin" <hpa@...or.com>,
	Ingo Molnar <mingo@...e.hu>, Lars Heete <hel@...in.de>,
	Andres Salomon <dilinger@...ued.net>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>
Subject: Re: x86: GEODE fix MFGPT input clock value

Hi,

Jordan Crouse schrieb:
> On 23/01/08 23:11 +0100, Willy Tarreau wrote:
>> Hi Peter,
>>
>> On Wed, Jan 23, 2008 at 01:59:32PM -0800, H. Peter Anvin wrote:
>>> Willy Tarreau wrote:
>>>> The GEODE MFGPT code assumed that 32kHz was 32000 Hz while the boards
>>>> run on a 32.768 kHz digital watch crystal. In practise, it will not
>>>> change the timer's frequency as the skew was only 2.4%, but it
>>>> should provide more accurate intervals.
>>>> - *  Divisor   Hz      Min Delta (S) Max Delta (S)
>>> Seconds are "s", not "S" (S = siemens.)
>> You're quite right. Same as we should write kHz and not Khz. But I'm
>> used to change other people's work and particularly comments the least
>> possible. Do you want an update ?
> 
> Please do - I don't mind if you change the comments - better that they
> are right.

While you are on it, please include this one:

--- a/arch/x86/kernel/mfgpt_32.c        2008-01-24 00:08:20.000000000 +0100
+++ b/arch/x86/kernel/mfgpt_32.c        2008-01-24 00:05:17.000000000 +0100
@@ -361,7 +361,7 @@
                        &mfgpt_clockevent);

        printk(KERN_INFO
-              "mfgpt-timer:  registering the MFGT timer as a clock event.\n");
+              "mfgpt-timer:  registering the MFGPT timer as a clock event.\n");
        clockevents_register_device(&mfgpt_clockevent);

        return 0;


> Jordan
> 

Arnd
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