From 7cd8f2ab7953eeafa90d1e44fc745dcfd01e32c0 Mon Sep 17 00:00:00 2001 From: Sebastian Reichel Date: Mon, 31 Jul 2023 18:57:22 +0200 Subject: [PATCH] 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 Signed-off-by: Sebastian Reichel Link: https://lore.kernel.org/r/20230731165723.53069-5-sebastian.reichel@collabora.com Signed-off-by: Rob Herring --- .../bindings/pci/rockchip-dw-pcie.yaml | 30 +++++++++++++++++++ 1 file changed, 30 insertions(+) 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 = ; + }; }; }; ... -- 2.50.1