linux-kernel - [PATCH 7/9] arm64: dts: rockchip: Add HDMI node to RK3368

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Message-ID: <20251020082508.3636511-8-heiko@sntech.de>
Date: Mon, 20 Oct 2025 10:25:06 +0200
From: Heiko Stuebner <heiko@...ech.de>
To: heiko@...ech.de
Cc: maarten.lankhorst@...ux.intel.com,
	mripard@...nel.org,
	tzimmermann@...e.de,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	quentin.schulz@...rry.de,
	andy.yan@...k-chips.com,
	dri-devel@...ts.freedesktop.org,
	devicetree@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org,
	linux-rockchip@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	cn.liweihao@...il.com,
	Heiko Stuebner <heiko.stuebner@...rry.de>
Subject: [PATCH 7/9] arm64: dts: rockchip: Add HDMI node to RK3368

From: Heiko Stuebner <heiko.stuebner@...rry.de>

Add the hdmi controller node to the main soc devicetree and hook
it into the vop.

Signed-off-by: Heiko Stuebner <heiko.stuebner@...rry.de>
---
 arch/arm64/boot/dts/rockchip/rk3368.dtsi | 43 ++++++++++++++++++++++++
 1 file changed, 43 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/rk3368.dtsi b/arch/arm64/boot/dts/rockchip/rk3368.dtsi
index ce4b112b082b..892d35242259 100644
--- a/arch/arm64/boot/dts/rockchip/rk3368.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3368.dtsi
@@ -875,6 +875,11 @@ vop_out_dsi: endpoint@0 {
 				reg = <0>;
 				remote-endpoint = <&dsi_in_vop>;
 			};
+
+			vop_out_hdmi: endpoint@1 {
+				reg = <1>;
+				remote-endpoint = <&hdmi_in_vop>;
+			};
 		};
 	};
 
@@ -933,6 +938,37 @@ dphy: phy@...68000 {
 		status = "disabled";
 	};
 
+	hdmi: hdmi@...80000 {
+		compatible = "rockchip,rk3368-dw-hdmi";
+		reg = <0x0 0xff980000 0x0 0x20000>;
+		interrupts = <GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH>;
+		clocks = <&cru PCLK_HDMI_CTRL>, <&cru SCLK_HDMI_HDCP>, <&cru SCLK_HDMI_CEC>;
+		clock-names = "iahb", "isfr", "cec";
+		pinctrl-names = "default";
+		pinctrl-0 = <&hdmi_i2c_xfer>;
+		power-domains = <&power RK3368_PD_VIO>;
+		reg-io-width = <4>;
+		rockchip,grf = <&grf>;
+		status = "disabled";
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			hdmi_in: port@0 {
+				reg = <0>;
+
+				hdmi_in_vop: endpoint {
+					remote-endpoint = <&vop_out_hdmi>;
+				};
+			};
+
+			hdmi_out: port@1 {
+				reg = <1>;
+			};
+		};
+	};
+
 	hevc_mmu: iommu@...a0440 {
 		compatible = "rockchip,iommu";
 		reg = <0x0 0xff9a0440 0x0 0x40>,
@@ -1196,6 +1232,13 @@ rmii_pins: rmii-pins {
 			};
 		};
 
+		hdmi {
+			hdmi_i2c_xfer: hdmi-i2c-xfer {
+				rockchip,pins = <3 RK_PD2 1 &pcfg_pull_none>,
+						<3 RK_PD3 1 &pcfg_pull_none>;
+			};
+		};
+
 		i2c0 {
 			i2c0_xfer: i2c0-xfer {
 				rockchip,pins = <0 RK_PA6 1 &pcfg_pull_none>,
-- 
2.47.2