linux-kernel - [PATCH 10/12] arm64: dts: st: Add v2m to GIC node on stm32mp251

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Date: Fri, 16 Feb 2024 10:47:55 +0100
From: Antonio Borneo <antonio.borneo@...s.st.com>
To: Thomas Gleixner <tglx@...utronix.de>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley
	<conor+dt@...nel.org>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre
 Torgue <alexandre.torgue@...s.st.com>,
        Catalin Marinas
	<catalin.marinas@....com>,
        Will Deacon <will@...nel.org>
CC: Antonio Borneo <antonio.borneo@...s.st.com>,
        <linux-kernel@...r.kernel.org>, <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        Christian Bruel
	<christian.bruel@...s.st.com>
Subject: [PATCH 10/12] arm64: dts: st: Add v2m to GIC node on stm32mp251

From: Christian Bruel <christian.bruel@...s.st.com>

The GIC of STM32MP25 includes v2m extension for PCIEe MSI support.

Add the v2m sub-node to the GIC interrupt controller and adapt the
other properties accordingly.

Signed-off-by: Christian Bruel <christian.bruel@...s.st.com>
Signed-off-by: Antonio Borneo <antonio.borneo@...s.st.com>
---
 arch/arm64/boot/dts/st/stm32mp251.dtsi | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/st/stm32mp251.dtsi b/arch/arm64/boot/dts/st/stm32mp251.dtsi
index 96859d098ef8..5c9095382cc7 100644
--- a/arch/arm64/boot/dts/st/stm32mp251.dtsi
+++ b/arch/arm64/boot/dts/st/stm32mp251.dtsi
@@ -81,12 +81,20 @@ scmi_reset: protocol@16 {
 	intc: interrupt-controller@...00000 {
 		compatible = "arm,cortex-a7-gic";
 		#interrupt-cells = <3>;
-		#address-cells = <1>;
+		#address-cells = <2>;
+		#size-cells = <2>;
 		interrupt-controller;
 		reg = <0x0 0x4ac10000 0x0 0x1000>,
 		      <0x0 0x4ac20000 0x0 0x2000>,
 		      <0x0 0x4ac40000 0x0 0x2000>,
 		      <0x0 0x4ac60000 0x0 0x2000>;
+		ranges;
+
+		v2m0: v2m@...90000 {
+			compatible = "arm,gic-v2m-frame";
+			reg = <0x0 0x48090000 0x0 0x1000>;
+			msi-controller;
+		};
 	};
 
 	psci {
-- 
2.34.1