linux-kernel - Re: [regression] nct6775 does not load in 5.4 and 5.5, bisected to b84398d6d7f90080

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Message-ID: <CAEJqkgipp7ZSerdsqpJKvrfuDQUSYFoUvYwjWCRRA2QS_8Ye_w@mail.gmail.com>
Date:   Sun, 23 Feb 2020 18:56:58 +0100
From:   Gabriel C <nix.or.die@...il.com>
To:     Martin Volf <martin.volf.42@...il.com>
Cc:     Mika Westerberg <mika.westerberg@...ux.intel.com>,
        Jean Delvare <jdelvare@...e.com>,
        Wolfram Sang <wsa@...-dreams.de>,
        Guenter Roeck <linux@...ck-us.net>, linux-i2c@...r.kernel.org,
        linux-hwmon@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [regression] nct6775 does not load in 5.4 and 5.5, bisected to b84398d6d7f90080

Am Sa., 22. Feb. 2020 um 12:13 Uhr schrieb Martin Volf
<martin.volf.42@...il.com>:
>
> Hello,
>

Hello,

> git bisect found out the first bad commit is
> b84398d6d7f900805662b1619223fd644d862d7c,i801_probe
> i2c: i801: Use iTCO version 6 in Cannon Lake PCH and beyond
>
> Unfortunately I am not able to revert it in v5.4 to confirm it is really
> the culprit.

I don't think you need to revert that to test, just move back
Cannon Lake to use iTCO Version 4 in i801_probe().

Something like this:

https://crazy.dev.frugalware.org/CANNONLAKE-use-iTCO-ver4.patch

BR,

Gabriel C