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Message-ID: <jzxf7a7xm4xm5yjgim2sqmxuvmtjrqupps3mnwvhbzimsu6zdk@75fyzct43n3e> Date: Tue, 25 Feb 2025 22:51:30 +0100 From: Sebastian Reichel <sebastian.reichel@...labora.com> To: Kever Yang <kever.yang@...k-chips.com> Cc: heiko@...ech.de, linux-rockchip@...ts.infradead.org, Simon Xue <xxm@...k-chips.com>, Conor Dooley <conor+dt@...nel.org>, Rob Herring <robh@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>, linux-pci@...r.kernel.org, Krzysztof Wilczyński <kw@...ux.com>, linux-kernel@...r.kernel.org, Krzysztof Kozlowski <krzk+dt@...nel.org>, devicetree@...r.kernel.org, Lorenzo Pieralisi <lpieralisi@...nel.org>, Shawn Lin <shawn.lin@...k-chips.com>, Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>, linux-arm-kernel@...ts.infradead.org Subject: Re: [PATCH v7 1/2] dt-bindings: PCI: dw: rockchip: Add rk3576 support Hello Kever, On Tue, Feb 25, 2025 at 06:26:10PM +0800, Kever Yang wrote: > rk3576 is using DWC PCIe controller, with msi interrupt directly to GIC > instead of using GIC ITS, so > - no ITS support is required and the 'msi-map' is not required, > - a new 'msi' interrupt is needed. > > Signed-off-by: Kever Yang <kever.yang@...k-chips.com> > Signed-off-by: Sebastian Reichel <sebastian.reichel@...labora.com> > --- You should either drop my Signed-off-by or add Co-developed-by: Sebastian Reichel <sebastian.reichel@...labora.com> Both options are fine with me, but the current one does not make much sense :) Greetings, -- Sebastian > > Changes in v7: > - Move the rk3576 device specific schema out of common.yaml > > Changes in v6: > - Fix make dt_binding_check and make CHECK_DTBS=y > > Changes in v5: > - Add constraints per device for interrupt-names due to the interrupt is > different from rk3588. > > Changes in v4: > - Fix wrong indentation in dt_binding_check report by Rob > > Changes in v3: > - Fix dtb check broken on rk3588 > - Update commit message > > Changes in v2: > - remove required 'msi-map' > - add interrupt name 'msi' > > .../bindings/pci/rockchip-dw-pcie-common.yaml | 10 +++- > .../bindings/pci/rockchip-dw-pcie.yaml | 55 +++++++++++++++++-- > 2 files changed, 57 insertions(+), 8 deletions(-) > > diff --git a/Documentation/devicetree/bindings/pci/rockchip-dw-pcie-common.yaml b/Documentation/devicetree/bindings/pci/rockchip-dw-pcie-common.yaml > index cc9adfc7611c..2150bd8b5fc2 100644 > --- a/Documentation/devicetree/bindings/pci/rockchip-dw-pcie-common.yaml > +++ b/Documentation/devicetree/bindings/pci/rockchip-dw-pcie-common.yaml > @@ -65,7 +65,11 @@ properties: > tx_cpl_timeout, cor_err_sent, nf_err_sent, f_err_sent, cor_err_rx, > nf_err_rx, f_err_rx, radm_qoverflow > - description: > - eDMA write channel 0 interrupt > + If the matching interrupt name is "msi", then this is the combinded > + MSI line interrupt, which is to support MSI interrupts output to GIC > + controller via GIC SPI interrupt instead of GIC its interrupt. > + If the matching interrupt name is "dma0", then this is the eDMA write > + channel 0 interrupt. > - description: > eDMA write channel 1 interrupt > - description: > @@ -81,7 +85,9 @@ properties: > - const: msg > - const: legacy > - const: err > - - const: dma0 > + - enum: > + - msi > + - dma0 > - const: dma1 > - const: dma2 > - const: dma3 > diff --git a/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml b/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml > index 550d8a684af3..4764a0173ae4 100644 > --- a/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml > +++ b/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml > @@ -16,16 +16,13 @@ description: |+ > PCIe IP and thus inherits all the common properties defined in > snps,dw-pcie.yaml. > > -allOf: > - - $ref: /schemas/pci/snps,dw-pcie.yaml# > - - $ref: /schemas/pci/rockchip-dw-pcie-common.yaml# > - > properties: > compatible: > oneOf: > - const: rockchip,rk3568-pcie > - items: > - enum: > + - rockchip,rk3576-pcie > - rockchip,rk3588-pcie > - const: rockchip,rk3568-pcie > > @@ -71,8 +68,54 @@ properties: > > vpcie3v3-supply: true > > -required: > - - msi-map > +allOf: > + - $ref: /schemas/pci/snps,dw-pcie.yaml# > + - $ref: /schemas/pci/rockchip-dw-pcie-common.yaml# > + - if: > + not: > + properties: > + compatible: > + contains: > + const: rockchip,rk3576-pcie > + then: > + required: > + - msi-map > + > + - if: > + properties: > + compatible: > + contains: > + const: rockchip,rk3576-pcie > + then: > + properties: > + interrupts: > + minItems: 6 > + maxItems: 6 > + interrupt-names: > + items: > + - const: sys > + - const: pmc > + - const: msg > + - const: legacy > + - const: err > + - const: msi > + else: > + properties: > + interrupts: > + minItems: 5 > + interrupt-names: > + minItems: 5 > + items: > + - const: sys > + - const: pmc > + - const: msg > + - const: legacy > + - const: err > + - const: dma0 > + - const: dma1 > + - const: dma2 > + - const: dma3 > + > > unevaluatedProperties: false > > -- > 2.25.1 > >
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