Re: [PATCH 8/8] pch_gbe: Add MinnowBoard support

[Darren Hart <dvhart@linux.intel.com>]

On Tue, 2013-06-25 at 20:35 -0600, Bjorn Helgaas wrote:
> On Tue, Jun 25, 2013 at 7:53 PM, Darren Hart <dvhart@linux.intel.com> wrote:

> >  static DEFINE_PCI_DEVICE_TABLE(pch_gbe_pcidev_id) = {
> >         {.vendor = PCI_VENDOR_ID_INTEL,
> >          .device = PCI_DEVICE_ID_INTEL_IOH1_GBE,
> > +        .subvendor = PCI_VENDOR_ID_CIRCUITCO,
> > +        .subdevice = PCI_DEVICE_ID_CIRCUITCO_MINNOWBOARD,
> 
> "MINNOWBOARD" seems like a pretty generic name for something that
> probably refers only to the gigabit ethernet device in the EG20T.  If
> you expect to use that same subdevice ID on other devices, I guess we
> can add PCI_DEVICE_ID_CIRCUITCO_MINNOWBOARD to pci_ids.h.  If it will
> only be used for the gigabit ethernet device, we would normally not
> add a #define for it and would just use the hex constant here (see the
> comment at the top of pci_ids.h).

The firmware populates the subsystem vendor and device ID for every
device on the PCH with PCI_VENDOR_ID_CIRCUITCO and
PCI_DEVICE_ID_CIRCUITCO_MINNOWBOARD, respectively. Currently I have
only made changes to pch_gbe to make use of it, but there is the
possibility of using this ID elsewhere. I don't currently have plans to
do so however. So if it is preferable, I can leave
PCI_VENDOR_ID_CIRCUITCO in pci_ids.h and use 0x0001 here for the
subsystem device ID.

-- 
Darren Hart
Intel Open Source Technology Center
Yocto Project - Technical Lead - Linux Kernel