63 lines
1.9 KiB
Diff
63 lines
1.9 KiB
Diff
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From 3f86c625861bab4ec6a3be790f5f567b99f668ca Mon Sep 17 00:00:00 2001
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From: Sebastian Reichel <sebastian.reichel@collabora.com>
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Date: Wed, 19 Apr 2023 18:27:12 +0200
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Subject: [PATCH 431/469] dt-bindings: PCI: dwc: rockchip: Add missing
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legacy-interrupt-controller
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Rockchip RK356x and RK3588 handle legacy interrupts via a ganged
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interrupts. The RK356x DT implements this via a sub-node named
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"legacy-interrupt-controller", just like a couple of other PCIe
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implementations. This adds proper documentation for this and updates
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the example to avoid regressions.
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Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
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---
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.../bindings/pci/rockchip-dw-pcie.yaml | 24 +++++++++++++++++++
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1 file changed, 24 insertions(+)
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diff --git a/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml b/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml
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index 98e45d2d8dfe..bf81d306cc80 100644
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--- a/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml
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+++ b/Documentation/devicetree/bindings/pci/rockchip-dw-pcie.yaml
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@@ -67,6 +67,22 @@ properties:
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- const: legacy
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- const: err
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+ legacy-interrupt-controller:
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+ description: Interrupt controller node for handling legacy PCI interrupts.
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+ type: object
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+ properties:
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+ "#address-cells":
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+ const: 0
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+
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+ "#interrupt-cells":
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+ const: 1
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+
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+ "interrupt-controller": true
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+
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+ interrupts:
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+ items:
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+ - description: combined legacy interrupt
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+
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msi-map: true
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num-lanes: true
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@@ -148,6 +164,14 @@ examples:
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reset-names = "pipe";
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#address-cells = <3>;
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#size-cells = <2>;
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+
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+ legacy-interrupt-controller {
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+ interrupt-controller;
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+ #address-cells = <0>;
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+ #interrupt-cells = <1>;
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+ interrupt-parent = <&gic>;
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+ interrupts = <GIC_SPI 72 IRQ_TYPE_EDGE_RISING>;
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+ };
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};
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};
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...
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--
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2.34.1
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