MediaTek MT7621 PCIe subsys supports a single Root Complex (RC) with 3 Root Ports. Add PCIe host topology ascii graph to the binding for completeness. Suggested-by: Krzysztof Kozlowski <krzk@xxxxxxxxxx> Signed-off-by: Sergio Paracuellos <sergio.paracuellos@xxxxxxxxx> --- .../bindings/pci/mediatek,mt7621-pcie.yaml | 29 +++++++++++++++++++ 1 file changed, 29 insertions(+) diff --git a/Documentation/devicetree/bindings/pci/mediatek,mt7621-pcie.yaml b/Documentation/devicetree/bindings/pci/mediatek,mt7621-pcie.yaml index 6fba42156db6..c41608863d6c 100644 --- a/Documentation/devicetree/bindings/pci/mediatek,mt7621-pcie.yaml +++ b/Documentation/devicetree/bindings/pci/mediatek,mt7621-pcie.yaml @@ -13,6 +13,35 @@ description: |+ MediaTek MT7621 PCIe subsys supports a single Root Complex (RC) with 3 Root Ports. Each Root Port supports a Gen1 1-lane Link + MT7621 PCIe HOST Topology + + .-------. + | | + | CPU | + | | + '-------' + | + | + | + v + .------------------. + .-----------| HOST/PCI Bridge |------------. + | '------------------' | Type1 + BUS0 | | | Access + v v v On Bus0 + .-------------. .-------------. .-------------. + | VIRTUAL P2P | | VIRTUAL P2P | | VIRTUAL P2P | + | BUS0 | | BUS0 | | BUS0 | + | DEV0 | | DEV1 | | DEV2 | + '-------------' '-------------' '-------------' + Type0 | Type0 | Type0 | + Access BUS1 | Access BUS2| Access BUS3| + On Bus1 v On Bus2 v On Bus3 v + .----------. .----------. .----------. + | Device 0 | | Device 0 | | Device 0 | + | Func 0 | | Func 0 | | Func 0 | + '----------' '----------' '----------' + allOf: - $ref: /schemas/pci/pci-host-bridge.yaml# -- 2.25.1
