On Wed, Feb 3, 2016 at 9:30 AM,  <[email protected]> wrote:
> The IPMI driver would not auto-load from DMI tables.  So these patches
> creates a platform device from an IPMI DMI table entry, and then
> modify the IPMI driver to handle all this.
>
> I followed how ACPI works mostly, with a fwnode and such.  But greatly
> simplified, of course .
>
> Changes from v1:
>
> * Split out the IPMI changes to their own patch.  It compiles and works
>   at each step, so no need to mix it up.  Should be easier to review
>   now.
>
> * Removed the dmi_zalloc() code, as the dmi_alloc already returns zeroed
>   data.
>
> * Removed the dummy (no DMI) is_dmi_fwnode() and to_dmi_device() calls
>   as they are only used under CONFIG_DMI.
>
> I'm still not sure about the device name and the driver_override
> setting.  I'd prefer something different, but there's no easy way
> to provide device matching like ACPI and OF can.

Sorry for being so slow testing this.  The whole series is:

Tested-by: Andy Lutomirski <[email protected]>

A couple of thoughts that are definitely not prerequisites for this series:

The sysfs hierarchy for the ipmi devices is confusing, at least to me.
With these applied, I have a dmi-ipmi-si device and an ipmi-bmc
device.  The ipmi-bmc device has a link called ipmi0 to the
dmi-ipmi-si device.  The dmi-ipmi-si device has a link called bmc to
the ipmi-bmc device.  The dmi-ipmi-si device also has the ipmi class
with the ipmi0 class device attached.  The dmi-ipmi-si part makes
sense to me, but what's the ipmi-bmc for?  Could it go away entirely?
Should it be a child of the dmi-ipmi-si device?

As for getting ipmi_devintf to autoload, you could stick a modalias in
the ipmi class device node (ipmi0) pointing to ipmi_devintf.  It would
be a bit hackish, but it ought to work, and it would allow
blacklisting ipmi_devintf to prevent it from loading.  Alternatively,
you could merge ipmi_devintf into ipmi_si or export a dummy symbol
from ipmi_devintf and require it in ipmi_si.

--Andy

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