linux-kernel - [PATCH v1 4/5] ARM: tegra: add DC interconnections for Tegra114

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Message-ID: <20260126191536.78829-5-clamor95@gmail.com>
Date: Mon, 26 Jan 2026 21:15:35 +0200
From: Svyatoslav Ryhel <clamor95@...il.com>
To: Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Thierry Reding <thierry.reding@...il.com>,
	Jonathan Hunter <jonathanh@...dia.com>,
	Svyatoslav Ryhel <clamor95@...il.com>,
	Mikko Perttunen <mperttunen@...dia.com>
Cc: devicetree@...r.kernel.org,
	linux-tegra@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH v1 4/5] ARM: tegra: add DC interconnections for Tegra114

Add DC interconnections to Tegra114 device tree to reflect connections
between MC, EMC and DC.

Signed-off-by: Svyatoslav Ryhel <clamor95@...il.com>
Reviewed-by: Mikko Perttunen <mperttunen@...dia.com>
---
 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 9acba15fba25..f1af206f50ee 100644
--- a/arch/arm/boot/dts/nvidia/tegra114.dtsi
+++ b/arch/arm/boot/dts/nvidia/tegra114.dtsi
@@ -125,6 +125,17 @@ dc@...00000 {
 
 			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@...40000 {
 
 			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";
 			};
-- 
2.51.0