entity-manager: SBTSI and hwmontempsensor

[Oskar Senft]

Hi Zev

Thank you for your quick response!

Ali got it to work - it was much easier than I had thought. Thanks for all
your great work!

Oskar.

On Thu, May 4, 2023 at 5:10 PM Zev Weiss <zev at bewilderbeest.net> wrote:

> On Thu, May 04, 2023 at 01:00:47PM PDT, Oskar Senft wrote:
> >Hi Zev
> >
> >In
> >
> https://github.com/openbmc/entity-manager/commit/e22143df37faa0b0f5e2918d2f505b9f64e74b0f
> >you "removed devices now managed by hwmontempsensor".
> >
> >I'm trying to figure out how to add SBTSI support for the TYAN S8036 board
> >(AMD Milan). Do I just add the device to the DTS and then reference it in
> >EntityManager board configuration via its bus and address?
> >
> >Is there still a way to dynamically get Entity Manager (or now
> >dbus-sensors) to bind the driver or does it HAVE to happen in the DTS now?
> >
> >Thanks!
> >
> >Oskar.
>
> Hi Oskar,
>
> Assuming you use a corresponding, recent enough version of dbus-sensors
> (i.e. including commit a1456c4aba, though hopefully also with at least
> commit 7627c860fa, which was a follow-up bugfix), it *should* work the
> same way it did before, with the device described in your E-M config.
>
> It shouldn't be in your DTS, because then it'd be statically defined and
> hwmontempsensor wouldn't be able to remove it when the host is powered
> off (which I assume you'd want).
>
> In terms of userspace/kernel separation, it's overall pretty similar to
> how it had been previously, just with the management of device lifetimes
> (instantiation & removal) moved to hwmontempsensor instead of
> entity-manager.
>
> Hopefully that's clear?  Let me know if you're having trouble getting
> things working though.
>
>
> Zev
>
>
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