Re: [PATCH] i2c: designware: platdrv: Set class based on dmi

From: Wolfram Sang
Date: Wed Jun 24 2020 - 07:24:15 EST


On Wed, Jun 24, 2020 at 01:46:55PM +0300, Andy Shevchenko wrote:
> On Wed, Jun 24, 2020 at 11:12:39AM +0200, Ricardo Ribalda wrote:
> > Current AMD's zen-based APUs use this core for some of its i2c-buses.
> >
> > With this patch we re-enable autodetection of hwmon-alike devices, so
> > lm-sensors will be able to work automatically.
> >
> > It does not affect the boot-time of embedded devices, as the class is
> > set based on the dmi information.
>
> Hmm... Do we really need to have DMI? I mean wouldn't be safe just always
> provide this to be compatible with HWMON class?

It is not unsafe. Embedded people might complain about increased boot
time whenever a CLASS_HWMON driver scans the addresses it knows.

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