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Date:      Thu, 10 Mar 2005 12:34:01 -0800
From:      Nate Lawson <nate@root.org>
To:        Bruno Ducrot <ducrot@poupinou.org>
Cc:        acpi@freebsd.org
Subject:   Re: [cpufreq] powernow drivers
Message-ID:  <4230AF39.4090100@root.org>
In-Reply-To: <20050310171025.GB2298@poupinou.org>
References:  <20050310171025.GB2298@poupinou.org>

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Bruno Ducrot wrote:
> The powernow stuff is nearly complete but need testings and more
> cleanup, especially the 2 drivers shoud be merged.
> I'm providing them right now at
> http://www.poupinou.org/cpufreq/bsd/powernow.tar.gz
> before the merge because I maybe offline for one or two weeks in
> a few days.
> 
> The powernow k6 is not finished, but mainly because I dont have the
> hardware.  It would be fine though that I know for sure that someone
> test it before I make it public, so if you have a cyrix K6/II or III
> with powernow! capability and you want to test please write me.

Excellent, your work looks really nice.  Just a few comments:

Please remove my name from the copyright.  You did all the work and I 
just provided suggestions.

Both drivers should just add a child called "powernow" instead of 
k*_powernow.  You can't have k7 and k8 powernow on the same system, 
right?  They can announce what hardware they are via device_set_desc() 
which it appears you're already doing.  Also, DRIVER_MODULE for them 
should not have "pn8" as the first arg.

You can remove the check for a freq >= 0xffff.  I committed this to 
acpi_perf already.

Have you tested the ACPI attachment for this?  Does it work ok?  I'm 
just curious because I don't have hw to test acpi-assisted probing.

It looks like these can be merged pretty easily.  Once you've done that, 
I'd like to import this driver.

Thanks very much,
-- 
Nate



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