linux-kernel - [PATCH v4 2/4] arm64: tegra: Add fallback cec compatibles

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Message-Id: <20250413-tegra-cec-v4-2-b6337b66ccad@gmail.com>
Date: Sun, 13 Apr 2025 14:35:33 -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 v4 2/4] arm64: tegra: Add fallback cec compatibles

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

The tegra_cec driver only declares support up to Tegra210 and will not
declare support for Tegra186 or Tegra194. Thus list a fallback
compatible for these archs to tegra210-cec as they work as-is with the
existing driver.

Signed-off-by: Aaron Kling <webgeek1234@...il.com>
---
 arch/arm64/boot/dts/nvidia/tegra186.dtsi | 2 +-
 arch/arm64/boot/dts/nvidia/tegra194.dtsi | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm64/boot/dts/nvidia/tegra186.dtsi b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
index 2b3bb5d0af17bd521f87db0484fcbe943dd1a797..7f76c81d744ac72fd117b82f4b799322d2a11b82 100644
--- a/arch/arm64/boot/dts/nvidia/tegra186.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra186.dtsi
@@ -1183,7 +1183,7 @@ gic: interrupt-controller@...1000 {
 	};
 
 	cec@...0000 {
-		compatible = "nvidia,tegra186-cec";
+		compatible = "nvidia,tegra186-cec", "nvidia,tegra210-cec";
 		reg = <0x0 0x03960000 0x0 0x10000>;
 		interrupts = <GIC_SPI 162 IRQ_TYPE_LEVEL_HIGH>;
 		clocks = <&bpmp TEGRA186_CLK_CEC>;
diff --git a/arch/arm64/boot/dts/nvidia/tegra194.dtsi b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
index 33f92b77cd9d9e530eae87a4bb8ba61993ceffeb..9b39bc126381b78efe067df790614d74b24897ce 100644
--- a/arch/arm64/boot/dts/nvidia/tegra194.dtsi
+++ b/arch/arm64/boot/dts/nvidia/tegra194.dtsi
@@ -1339,7 +1339,7 @@ gic: interrupt-controller@...1000 {
 		};
 
 		cec@...0000 {
-			compatible = "nvidia,tegra194-cec";
+			compatible = "nvidia,tegra194-cec", "nvidia,tegra210-cec";
 			reg = <0x0 0x03960000 0x0 0x10000>;
 			interrupts = <GIC_SPI 162 IRQ_TYPE_LEVEL_HIGH>;
 			clocks = <&bpmp TEGRA194_CLK_CEC>;

-- 
2.48.1