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SubjectRe: [RFC PATCH 2/3] dt-bindings: gpio: Add binding documentation for Etron EJ168/EJ188/EJ198
On Wed, Oct 7, 2020 at 9:58 PM Martin Blumenstingl
<martin.blumenstingl@googlemail.com> wrote:
> On Wed, Oct 7, 2020 at 11:19 AM Linus Walleij <linus.walleij@linaro.org> wrote:
> > On Sun, Oct 4, 2020 at 8:00 PM Martin Blumenstingl
> > <martin.blumenstingl@googlemail.com> wrote:
> >
> > > +properties:
> > > + compatible:
> > > + enum:
> > > + - pci1b6f,7023
> > > + - pci1b6f,7052
> >
> > I think it is better to let the PCI driver for the whole hardware in
> > drivers/usb/host/xhci-pci.c probe from the PCI configuration space
> > numbers, and then add a gpio_chip to xhci-pci.c.
>
> to have everything consistent I will move the binding to
> Documentation/devicetree/bindings/usb

I do not understand why a PCI device would need a DT binding
at all. They just probe from the magic number in the PCI
config space, they spawn struct pci_dev PCI devices, not the
type of platform devices coming out of the DT parser code.
No DT compatible needed.

What am I not understanding about this?

Yours,
Linus Walleij

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