From c349ce6fb2fde3703adbb681515a632af6694f74 Mon Sep 17 00:00:00 2001 From: Brad Griffis Date: Fri, 13 Dec 2024 23:56:02 +0000 Subject: [PATCH] arm64: tegra: Fix Tegra234 PCIe interrupt-map BugLink: https://bugs.launchpad.net/bugs/2114239 commit b615fbd70fce8582d92b3bdbbf3c9b80cadcfb55 upstream. For interrupt-map entries, the DTS specification requires that #address-cells is defined for both the child node and the interrupt parent. For the PCIe interrupt-map entries, the parent node ("gic") has not specified #address-cells. The existing layout of the PCIe interrupt-map entries indicates that it assumes that #address-cells is zero for this node. Explicitly set #address-cells to zero for "gic" so that it complies with the device tree specification. NVIDIA EDK2 works around this issue by assuming #address-cells is zero in this scenario, but that workaround is being removed and so this update is needed or else NVIDIA EDK2 cannot successfully parse the device tree and the board cannot boot. Fixes: ec142c44b026 ("arm64: tegra: Add P2U and PCIe controller nodes to Tegra234 DT") Signed-off-by: Brad Griffis Cc: stable@vger.kernel.org Link: https://lore.kernel.org/r/20241213235602.452303-1-bgriffis@nvidia.com Signed-off-by: Thierry Reding Signed-off-by: Greg Kroah-Hartman Signed-off-by: Noah Wager Signed-off-by: Mehmet Basaran --- arch/arm64/boot/dts/nvidia/tegra234.dtsi | 2 ++ 1 file changed, 2 insertions(+) diff --git a/arch/arm64/boot/dts/nvidia/tegra234.dtsi b/arch/arm64/boot/dts/nvidia/tegra234.dtsi index e40e4e715557..00bc2de1c3da 100644 --- a/arch/arm64/boot/dts/nvidia/tegra234.dtsi +++ b/arch/arm64/boot/dts/nvidia/tegra234.dtsi @@ -1914,6 +1914,8 @@ #redistributor-regions = <1>; #interrupt-cells = <3>; interrupt-controller; + + #address-cells = <0>; }; smmu_iso: iommu@10000000 {