On Thu, Aug 28, 2025 at 10:16:54AM GMT, Chen Wang wrote: > From: Chen Wang <unicorn_wang@xxxxxxxxxxx> > > Add binding for Sophgo SG2042 PCIe host controller. > > Signed-off-by: Chen Wang <unicorn_wang@xxxxxxxxxxx> > --- > .../bindings/pci/sophgo,sg2042-pcie-host.yaml | 66 +++++++++++++++++++ > 1 file changed, 66 insertions(+) > create mode 100644 Documentation/devicetree/bindings/pci/sophgo,sg2042-pcie-host.yaml > > diff --git a/Documentation/devicetree/bindings/pci/sophgo,sg2042-pcie-host.yaml b/Documentation/devicetree/bindings/pci/sophgo,sg2042-pcie-host.yaml > new file mode 100644 > index 000000000000..2cca3d113d11 > --- /dev/null > +++ b/Documentation/devicetree/bindings/pci/sophgo,sg2042-pcie-host.yaml > @@ -0,0 +1,66 @@ > +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) > +%YAML 1.2 > +--- > +$id: http://devicetree.org/schemas/pci/sophgo,sg2042-pcie-host.yaml# > +$schema: http://devicetree.org/meta-schemas/core.yaml# > + > +title: Sophgo SG2042 PCIe Host (Cadence PCIe Wrapper) > + > +description: > + Sophgo SG2042 PCIe host controller is based on the Cadence PCIe core. > + > +maintainers: > + - Chen Wang <unicorn_wang@xxxxxxxxxxx> > + > +properties: > + compatible: > + const: sophgo,sg2042-pcie-host > + > + reg: > + maxItems: 2 > + > + reg-names: > + items: > + - const: reg > + - const: cfg > + > + vendor-id: > + const: 0x1f1c > + > + device-id: > + const: 0x2042 > + > + msi-parent: true > + > +allOf: > + - $ref: cdns-pcie-host.yaml# > + > +required: > + - compatible > + - reg > + - reg-names > + - vendor-id > + - device-id Why are these IDs 'required'? The default IDs are invalid? - Mani -- மணிவண்ணன் சதாசிவம்
