linux-kernel - Re: [PATCH] i2c: piix4: Fix SMBus port selection for AMD Family 17h chips

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Date:   Thu, 5 Oct 2017 10:43:41 -0700
From:   Guenter Roeck <linux@...ck-us.net>
To:     Wolfram Sang <wsa@...-dreams.de>
Cc:     Jean Delvare <jdelvare@...e.de>, linux-i2c@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH] i2c: piix4: Fix SMBus port selection for AMD Family 17h
 chips

On Thu, Oct 05, 2017 at 05:11:15PM +0200, Wolfram Sang wrote:
> 
> > Sorry for the delay. Looks all good to me (as I'd expect from Gunter...)
> > 
> > Reviewed-by: Jean Delvare <jdelvare@...e.de>
> 
> Thanks, Jean!
> 
> Guenter: I will queue it to for-current, when I am back home. Does it
> need a stable tag?
> 
I would suggest yes, since otherwise anyone using a Ryzen or Threadripper CPU
will see duplicate i2c controllers and devices. Some DDR4 chips have temperature
sensors, so this becomes easily visible (this is how I found the problem).

Thanks,
Guenter