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

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Message-ID: <7513834.DvuYhMxLoT@senjougahara>
Date: Wed, 21 Jan 2026 16:58:47 +0900
From: Mikko Perttunen <mperttunen@...dia.com>
To: Krzysztof Kozlowski <krzk@...nel.org>, Rob Herring <robh@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Thierry Reding <treding@...dia.com>,
 Thierry Reding <thierry.reding@...il.com>,
 Jonathan Hunter <jonathanh@...dia.com>,
 Prashant Gaikwad <pgaikwad@...dia.com>,
 Michael Turquette <mturquette@...libre.com>, Stephen Boyd <sboyd@...nel.org>,
 Dmitry Osipenko <digetx@...il.com>, MyungJoo Ham <myungjoo.ham@...sung.com>,
 Kyungmin Park <kyungmin.park@...sung.com>,
 Chanwoo Choi <cw00.choi@...sung.com>, Svyatoslav Ryhel <clamor95@...il.com>,
 Svyatoslav Ryhel <clamor95@...il.com>
Cc: linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
 linux-tegra@...r.kernel.org, linux-clk@...r.kernel.org,
 linux-pm@...r.kernel.org
Subject: Re: [PATCH v4 12/12] ARM: tegra: add DC interconnections for Tegra114

On Tuesday, November 25, 2025 9:05 PM Svyatoslav Ryhel wrote:
> Add DC interconnections to Tegra114 device tree to reflect connections
> between MC, EMC and DC.
> 
> Signed-off-by: Svyatoslav Ryhel <clamor95@...il.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 6221423b81d1..732f8b5b4eed 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";
>  			};
> 

Reviewed-by: Mikko Perttunen <mperttunen@...dia.com>