linux-kernel - [PATCH 3/4] arm64: tegra: Add CEC controller on Tegra210

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Message-Id: <20250407-tegra-cec-v1-3-e25dd9577b5f@gmail.com>
Date: Mon, 07 Apr 2025 23:39:50 -0500
From: Aaron Kling via B4 Relay <devnull+webgeek1234.gmail.com@...nel.org>
To: Hans Verkuil <hverkuil@...all.nl>, 
 Mauro Carvalho Chehab <mchehab@...nel.org>, 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>
Cc: linux-tegra@...r.kernel.org, linux-media@...r.kernel.org, 
 devicetree@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Aaron Kling <webgeek1234@...il.com>
Subject: [PATCH 3/4] arm64: tegra: Add CEC controller on Tegra210

From: Aaron Kling <webgeek1234@...il.com>

The CEC controller found on Tegra210 can be used to control consumer
devices using the HDMI CEC pin.

Signed-off-by: Aaron Kling <webgeek1234@...il.com>
---
 arch/arm64/boot/dts/nvidia/tegra210.dtsi | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/arch/arm64/boot/dts/nvidia/tegra210.dtsi b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
index b6c84d195c0ef9ae90721fada09ffd46a9c11fa3..402b0ede1472af625d9d9e811f5af306d436cc98 100644
--- a/arch/arm64/boot/dts/nvidia/tegra210.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra210.dtsi
@@ -959,6 +959,15 @@ fuse@...0f800 {
 		reset-names = "fuse";
 	};
 
+	cec@...15000 {
+		compatible = "nvidia,tegra210-cec";
+		reg = <0x0 0x070015000 0x0 0x1000>;
+		interrupts = <GIC_SPI 3 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&tegra_car TEGRA210_CLK_CEC>;
+		clock-names = "cec";
+		status = "disabled";
+	};
+
 	mc: memory-controller@...19000 {
 		compatible = "nvidia,tegra210-mc";
 		reg = <0x0 0x70019000 0x0 0x1000>;

-- 
2.48.1