linux-kernel - [PATCH 1/4] arm64: dts: exynos5433: Add default GIC address cells

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Message-ID: <20250822121423.228500-5-krzysztof.kozlowski@linaro.org>
Date: Fri, 22 Aug 2025 14:14:24 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Ivaylo Ivanov <ivo.ivanov.ivanov1@...il.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Alim Akhtar <alim.akhtar@...sung.com>,
	Peter Griffin <peter.griffin@...aro.org>,
	André Draszik <andre.draszik@...aro.org>,
	Tudor Ambarus <tudor.ambarus@...aro.org>,
	linux-fsd@...la.com,
	linux-arm-kernel@...ts.infradead.org,
	linux-samsung-soc@...r.kernel.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH 1/4] arm64: dts: exynos5433: Add default GIC address cells

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

  exynos5433-tm2-common.dtsi:1000.2-41: Warning (interrupt_map): /soc@...cie@...00000:interrupt-map:
    Missing property '#address-cells' in node /soc@...nterrupt-controller@...01000, using 0 as fallbac

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/exynos/exynos5433.dtsi | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/arm64/boot/dts/exynos/exynos5433.dtsi b/arch/arm64/boot/dts/exynos/exynos5433.dtsi
index 0b9053b9b2b5..fa2029e280a5 100644
--- a/arch/arm64/boot/dts/exynos/exynos5433.dtsi
+++ b/arch/arm64/boot/dts/exynos/exynos5433.dtsi
@@ -937,6 +937,7 @@ reboot: syscon-reboot {
 
 		gic: interrupt-controller@...01000 {
 			compatible = "arm,gic-400";
+			#address-cells = <0>;
 			#interrupt-cells = <3>;
 			interrupt-controller;
 			reg = <0x11001000 0x1000>,
-- 
2.48.1