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| author | Sebastian Reichel <sebastian.reichel@collabora.com> | 2023-07-31 19:57:22 +0300 |
|---|---|---|
| committer | Rob Herring <robh@kernel.org> | 2023-08-16 19:09:19 +0300 |
| commit | 7cd8f2ab7953eeafa90d1e44fc745dcfd01e32c0 (patch) | |
| tree | a170be708911c5eb82e3663d45d3c527c2519b5c /Documentation/devicetree/bindings/pci | |
| parent | 591d3833159e95f7db3c96fa3de9b741118cda74 (diff) | |
| download | linux-7cd8f2ab7953eeafa90d1e44fc745dcfd01e32c0.tar.xz | |
dt-bindings: PCI: dwc: rockchip: Add missing legacy-interrupt-controller
Rockchip RK356x and RK3588 handle legacy interrupts via a ganged
interrupts. The RK356x DT implements this via a sub-node named
"legacy-interrupt-controller", just like a couple of other PCIe
implementations. This adds proper documentation for this and updates
the example to avoid regressions.
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Link: https://lore.kernel.org/r/20230731165723.53069-5-sebastian.reichel@collabora.com
Signed-off-by: Rob Herring <robh@kernel.org>
Diffstat (limited to 'Documentation/devicetree/bindings/pci')
| -rw-r--r-- | Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml b/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml index ad9954f7fe02..1ae8dcfa072c 100644 --- a/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml +++ b/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml @@ -93,6 +93,28 @@ properties: - const: legacy - const: err + legacy-interrupt-controller: + description: Interrupt controller node for handling legacy PCI interrupts. + type: object + additionalProperties: false + properties: + "#address-cells": + const: 0 + + "#interrupt-cells": + const: 1 + + interrupt-controller: true + + interrupts: + items: + - description: combined legacy interrupt + required: + - "#address-cells" + - "#interrupt-cells" + - interrupt-controller + - interrupts + msi-map: true num-lanes: true @@ -180,6 +202,14 @@ examples: reset-names = "pipe"; #address-cells = <3>; #size-cells = <2>; + + legacy-interrupt-controller { + interrupt-controller; + #address-cells = <0>; + #interrupt-cells = <1>; + interrupt-parent = <&gic>; + interrupts = <GIC_SPI 72 IRQ_TYPE_EDGE_RISING>; + }; }; }; ... |