From: Jon Hunter <jonathanh@nvidia.com>
Date: Wed, 17 Dec 2025 10:47:44 +0000 (+0000)
Subject: Revert "arm64: tegra: Add interconnect properties for Tegra210"
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2150467fc61ddb473145ace99afdcde88b54af8e;p=thirdparty%2Flinux.git

Revert "arm64: tegra: Add interconnect properties for Tegra210"

Commit 59a42707a094 ("arm64: tegra: Add interconnect properties for
Tegra210") populated interconnect properties for Tegra210 and this is
preventing the Tegra DRM driver from probing successfully. The following
error is observed on boot ...

 drm drm: failed to initialize 54240000.dc: -517

For now revert this change, until a fix is available.

Fixes: 59a42707a094 ("arm64: tegra: Add interconnect properties for Tegra210")
Signed-off-by: Jon Hunter <jonathanh@nvidia.com>
Acked-by: Thierry Reding <treding@nvidia.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
---

diff --git a/arch/arm64/boot/dts/nvidia/tegra210.dtsi b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
index 709da31d5785..137aa8375257 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
@@ -202,19 +202,6 @@
 
 			nvidia,outputs = <&dsia &dsib &sor0 &sor1>;
 			nvidia,head = <0>;
-
-			interconnects = <&mc TEGRA210_MC_DISPLAY0A &emc>,
-					<&mc TEGRA210_MC_DISPLAY0B &emc>,
-					<&mc TEGRA210_MC_DISPLAY0C &emc>,
-					<&mc TEGRA210_MC_DISPLAYHC &emc>,
-					<&mc TEGRA210_MC_DISPLAYD &emc>,
-					<&mc TEGRA210_MC_DISPLAYT &emc>;
-			interconnect-names = "wina",
-					     "winb",
-					     "winc",
-					     "cursor",
-					     "wind",
-					     "wint";
 		};
 
 		dc@54240000 {
@@ -230,15 +217,6 @@
 
 			nvidia,outputs = <&dsia &dsib &sor0 &sor1>;
 			nvidia,head = <1>;
-
-			interconnects = <&mc TEGRA210_MC_DISPLAY0AB &emc>,
-					<&mc TEGRA210_MC_DISPLAY0BB &emc>,
-					<&mc TEGRA210_MC_DISPLAY0CB &emc>,
-					<&mc TEGRA210_MC_DISPLAYHCB &emc>;
-			interconnect-names = "wina",
-					     "winb",
-					     "winc",
-					     "cursor";
 		};
 
 		dsia: dsi@54300000 {
@@ -1052,7 +1030,6 @@
 
 		#iommu-cells = <1>;
 		#reset-cells = <1>;
-		#interconnect-cells = <1>;
 	};
 
 	emc: external-memory-controller@7001b000 {
@@ -1066,7 +1043,6 @@
 		nvidia,memory-controller = <&mc>;
 		operating-points-v2 = <&emc_icc_dvfs_opp_table>;
 
-		#interconnect-cells = <0>;
 		#cooling-cells = <2>;
 	};