Thread (28 messages) 28 messages, 4 authors, 2026-01-22

Re: [PATCH v4 12/12] ARM: tegra: add DC interconnections for Tegra114

From: Mikko Perttunen <mperttunen@nvidia.com>
Date: 2026-01-21 07:58:54
Also in: linux-clk, linux-pm, linux-tegra, lkml

On Tuesday, November 25, 2025 9:05 PM Svyatoslav Ryhel wrote:
quoted hunk ↗ jump to hunk
Add DC interconnections to Tegra114 device tree to reflect connections
between MC, EMC and DC.

Signed-off-by: Svyatoslav Ryhel <redacted>
---
 arch/arm/boot/dts/nvidia/tegra114.dtsi | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)
diff --git a/arch/arm/boot/dts/nvidia/tegra114.dtsi b/arch/arm/boot/dts/nvidia/tegra114.dtsi
index 6221423b81d1..732f8b5b4eed 100644
--- a/arch/arm/boot/dts/nvidia/tegra114.dtsi
+++ b/arch/arm/boot/dts/nvidia/tegra114.dtsi
@@ -125,6 +125,17 @@ dc@54200000 {
 
 			nvidia,head = <0>;
 
+			interconnects = <&mc TEGRA114_MC_DISPLAY0A &emc>,
+					<&mc TEGRA114_MC_DISPLAY0B &emc>,
+					<&mc TEGRA114_MC_DISPLAY1B &emc>,
+					<&mc TEGRA114_MC_DISPLAY0C &emc>,
+					<&mc TEGRA114_MC_DISPLAYHC &emc>;
+			interconnect-names = "wina",
+					     "winb",
+					     "winb-vfilter",
+					     "winc",
+					     "cursor";
+
 			rgb {
 				status = "disabled";
 			};
@@ -144,6 +155,17 @@ dc@54240000 {
 
 			nvidia,head = <1>;
 
+			interconnects = <&mc TEGRA114_MC_DISPLAY0AB &emc>,
+					<&mc TEGRA114_MC_DISPLAY0BB &emc>,
+					<&mc TEGRA114_MC_DISPLAY1BB &emc>,
+					<&mc TEGRA114_MC_DISPLAY0CB &emc>,
+					<&mc TEGRA114_MC_DISPLAYHCB &emc>;
+			interconnect-names = "wina",
+					     "winb",
+					     "winb-vfilter",
+					     "winc",
+					     "cursor";
+
 			rgb {
 				status = "disabled";
 			};
Reviewed-by: Mikko Perttunen <mperttunen@nvidia.com>



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