linux-kernel - [PATCH] arm64: tegra: Enable IOMMU for host1x on Tegra132

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Message-ID: <20230810214543.16235-1-rayyan@ansari.sh>
Date:   Thu, 10 Aug 2023 22:45:41 +0100
From:   Rayyan Ansari <rayyan@...ari.sh>
To:     linux-tegra@...r.kernel.org
Cc:     Rayyan Ansari <rayyan@...ari.sh>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] arm64: tegra: Enable IOMMU for host1x on Tegra132

Add the iommu property to the host1x node to register it with its
swgroup.

Signed-off-by: Rayyan Ansari <rayyan@...ari.sh>
---
 arch/arm64/boot/dts/nvidia/tegra132.dtsi | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra132.dtsi b/arch/arm64/boot/dts/nvidia/tegra132.dtsi
index 8b78be8f4f9d..7e24a212c7e4 100644
--- a/arch/arm64/boot/dts/nvidia/tegra132.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra132.dtsi
@@ -93,6 +93,8 @@ host1x@...00000 {
 		resets = <&tegra_car 28>;
 		reset-names = "host1x";
 
+		iommus = <&mc TEGRA_SWGROUP_HC>;
+
 		#address-cells = <2>;
 		#size-cells = <2>;
 
-- 
2.41.0