linux-kernel - Re: [PATCH] i2c: piix4: Replace piix4_smbus driver's cd6h/cd7h port io accesses with mmio accesses

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Message-ID: <Yd16cw0AaYcf7eSf@kunai>
Date:   Tue, 11 Jan 2022 13:39:15 +0100
From:   Wolfram Sang <wsa@...nel.org>
To:     Andy Shevchenko <andy.shevchenko@...il.com>
Cc:     Guenter Roeck <linux@...ck-us.net>, Terry.Bowman@....com,
        Jean Delvare <jdelvare@...e.de>,
        linux-i2c <linux-i2c@...r.kernel.org>,
        linux-watchdog@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        Tom Lendacky <thomas.lendacky@....com>
Subject: Re: [PATCH] i2c: piix4: Replace piix4_smbus driver's cd6h/cd7h port
 io accesses with mmio accesses


> I have briefly read the discussion by the link you provided above in
> this thread. I'm not sure I understand the issue and if Intel hardware
> is affected. Is there any summary of the problem?

I guess the original patch description should explain it. You can find
it here:

http://patchwork.ozlabs.org/project/linux-i2c/patch/20210715221828.244536-1-Terry.Bowman@amd.com/

If this is not sufficient, hopefully Terry can provide more information?


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