linux-kernel - [PATCH 1/2] arm64: dts: marvell: armada-37xx: Add default PCI interrup controller address cells

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Message-ID: <20250822133329.312326-3-krzysztof.kozlowski@linaro.org>
Date: Fri, 22 Aug 2025 15:33:30 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Andrew Lunn <andrew@...n.ch>,
	Gregory Clement <gregory.clement@...tlin.com>,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	linux-arm-kernel@...ts.infradead.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH 1/2] arm64: dts: marvell: armada-37xx: Add default PCI interrup controller address cells

Add missing address-cells 0 to the PCI interrupt node to silence W=1
warning:

  armada-37xx.dtsi:518.4-521.29: Warning (interrupt_map): /soc/pcie@...70000:interrupt-map:
    Missing property '#address-cells' in node /soc/pcie@...70000/interrupt-controller, using 0 as fallback

Value '0' is correct because:
1. GIC interrupt controller does not have children,
2. interrupt-map property (in PCI node) consists of five components and
   the fourth component "parent unit address", which size is defined by
   '#address-cells' of the node pointed to by the interrupt-parent
   component, is not used (=0)

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 arch/arm64/boot/dts/marvell/armada-37xx.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
index 75b0fdc3efb2..c612317043ea 100644
--- a/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
+++ b/arch/arm64/boot/dts/marvell/armada-37xx.dtsi
@@ -524,6 +524,7 @@ pcie0: pcie@...70000 {
 			pcie_intc: interrupt-controller {
 				interrupt-controller;
 				#interrupt-cells = <1>;
+				#address-cells = <0>;
 			};
 		};
 	};
-- 
2.48.1