linux-kernel - [PATCH 2/9] arm64: dts: rockchip: move DDC bus from Haikou carrierboard to RK3399 Puma DTSI

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Message-Id: <20250218-tsd-align-haikou-v1-2-5c44d1dd8658@cherry.de>
Date: Tue, 18 Feb 2025 12:49:13 +0100
From: Quentin Schulz <foss+kernel@...il.net>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
 Conor Dooley <conor+dt@...nel.org>, Heiko Stuebner <heiko@...ech.de>
Cc: devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
 linux-rockchip@...ts.infradead.org, linux-kernel@...r.kernel.org, 
 Quentin Schulz <quentin.schulz@...rry.de>
Subject: [PATCH 2/9] arm64: dts: rockchip: move DDC bus from Haikou
 carrierboard to RK3399 Puma DTSI

From: Quentin Schulz <quentin.schulz@...rry.de>

The DDC bus is necessarily on I2C3, that's how it's exposed by RK3399
Puma on the Q7 golden fingers, so let's move it to the SoM DTSI instead.

If the carrierboard doesn't route it for some reason, /delete-property/
can be used to remove it.

Signed-off-by: Quentin Schulz <quentin.schulz@...rry.de>
---
 arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts | 1 -
 arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi       | 4 ++++
 2 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts b/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts
index 947bbd62a6b09ce55320d0889ee8cf50ca59dfd4..4a1a71995bf5da65d59214711671d87c9ea2de62 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts
+++ b/arch/arm64/boot/dts/rockchip/rk3399-puma-haikou.dts
@@ -150,7 +150,6 @@ vddd_codec: regulator-vddd-codec {
 };
 
 &hdmi {
-	ddc-i2c-bus = <&i2c3>;
 	status = "okay";
 };
 
diff --git a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
index 995b30a7aae01a0326e9f80d6be930f227968539..f7548613ac46e190972d549271ec0bbc0c8a9b92 100644
--- a/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3399-puma.dtsi
@@ -389,6 +389,10 @@ vdd_gpu: regulator@60 {
 	};
 };
 
+&hdmi {
+	ddc-i2c-bus = <&i2c3>;
+};
+
 &i2c7 {
 	status = "okay";
 	clock-frequency = <400000>;

-- 
2.48.1