On Mon, Oct 31, 2022 at 02:28:54PM +0100, AngeloGioacchino Del Regno wrote: > Il 28/10/22 11:43, Tinghan Shen ha scritto: > > From: Jianjun Wang <jianjun.wang@xxxxxxxxxxxx> > > > > In order to support mt8195 pcie node, update the yaml to support new > > properties of iommu and power-domain, and update the reset-names > > property to allow only one 'mac' name. > > > > Signed-off-by: Jianjun Wang <jianjun.wang@xxxxxxxxxxxx> > > Signed-off-by: TingHan Shen <tinghan.shen@xxxxxxxxxxxx> > > --- > > .../bindings/pci/mediatek-pcie-gen3.yaml | 16 +++++++++++++--- > > 1 file changed, 13 insertions(+), 3 deletions(-) > > > > diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml > > index c00be39af64e..a9013c10131a 100644 > > --- a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml > > +++ b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml > > @@ -70,14 +70,21 @@ properties: > > minItems: 1 > > maxItems: 8 > > + iommu-map: > > + maxItems: 1 > > + > > + iommu-map-mask: > > + const: 0 > > + > > resets: > > minItems: 1 > > maxItems: 2 > > reset-names: > > - minItems: 1 > > - items: > > - - const: phy > > + oneOf: > > + - items: > > + - const: phy > > + - const: mac > > - const: mac > > Sorry, this looks a bit messy. > > I can propose two solutions, either: > > reset-names: > minItems: 1 > items: > - const: mac > - const: phy > ... and change the order in mt8192.dtsi; That doesn't work because originally 'phy' alone was allowed. You could do: minItems: 1 maxItems: 2 items: enum: [ phy, mac ] But for 2 items, either order would be allowed. Not great, but not a huge deal. > otherwise, something like > allOf: > - if: > properties: > compatible: > contains: > - const: mediatek,mt8195-pcie > ... invert reset-names > > I think that the first solution makes a bit more sense though, as the > PHY reset may be moved in a PCIE-PHY specific driver instead of being > managed here in pci-mediatek-gen3. That either makes sense or it doesn't. If it does, then you should go ahead and separate the phy rather than change the ABI twice. Rob
