Re: [PATCH v3 35/36] platform/x86: intel_pmc_ipc: Convert to MFD

Lee Jones
2020-01-20T12:50:48Z

On Mon, 20 Jan 2020, Mika Westerberg wrote:
> On Mon, Jan 20, 2020 at 11:14:50AM +0000, Lee Jones wrote:
> > On Mon, 20 Jan 2020, Mika Westerberg wrote:
> >
> > > On Mon, Jan 20, 2020 at 08:12:46AM +0000, Lee Jones wrote:
> > > > > Well, by "library" I mean that the SCU IPC itself does not bind to
> > > > > anything but instead it gets called by different drivers such as this
> > > > > one passing the device pointer that is the SCU IPC device. Here for
> > > > > example it is the platfrom device created from an ACPI description.
> > > >
> > > > Not keen on that at all. Why can it not be a platform device?
> > >
> > > We also call the same library from a PCI driver (intel_scu_pcidrv.c in
> > > this series) where the device is of type struct pci_dev.
> >
> > Not sure I understand the issue.
>
> You are asking why it cannot be a platform device. It cannot be because
> we are calling the same library from a PCI driver where there is no
> platform device available (only struct pci_dev).

I'm asking why it needs to be called at all. Why can't it be probed
using the Device Driver API, like most other drivers?

--
Lee Jones [李琼斯]
Linaro Services Technical Lead
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