Re: [PATCH 2/2] platform/x86: Add Intel Software Defined Silicon driver

From: David E. Box
Date: Mon Sep 27 2021 - 13:35:48 EST


On Mon, 2021-09-27 at 06:04 +0200, Greg KH wrote:
> On Sun, Sep 26, 2021 at 06:15:16PM -0700, David E. Box wrote:
> > > > +static struct platform_driver sdsi_driver = {
> > > > +       .driver = {
> > > > +               .name           = SDSI_DEV_NAME,
> > > > +               .dev_groups     = sdsi_groups,
> > > > +       },
> > > > +       .probe  = sdsi_probe,
> > > > +       .remove = sdsi_remove,
> > > > +};
> > > > +module_platform_driver(sdsi_driver);
> > >
> > > What causes the platform to know to register, and enable, this platform
> > > driver?  Shouldn't there be some hardware involved that is discoverable
> > > to enable it to load dynamically?
> >
> > Ah. The patch that adds the SDSi platform device string was added to a series for the intel_pmt
> > MFD
> > driver and it's still waiting review. I see that complicates things. I can combine the two series
> > together.
>
> Do you have a pointer to the lore.kernel.org location of that series?

https://lore.kernel.org/all/20210922213007.2738388-1-david.e.box@xxxxxxxxxxxxxxx/

>
> Your code right here will bind to any system that it is loaded on, a
> very dangerous thing...

It won't. It uses module alias to load against the SDSi specific MFD cell.

>
> thanks,
>
> greg k-h