linux-kernel - [PATCH v2 3/3] arm64: dts: rockchip: support camera module on Haikou Video Demo on PX30 Ringneck

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Message-Id: <20250610-ringneck-haikou-video-demo-cam-v2-3-de1bf87e0732@cherry.de>
Date: Tue, 10 Jun 2025 18:22:18 +0200
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 v2 3/3] arm64: dts: rockchip: support camera module on
 Haikou Video Demo on PX30 Ringneck

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

The Haikou Video Demo adapter has a proprietary connector for a camera
module which has an OV5675 camera sensor and a companion DW9714 focus
lens driver.

This adds support for the camera module on PX30 Ringneck module fitted
on a Haikou devkit with the Haikou Video Demo adapter.

Signed-off-by: Quentin Schulz <quentin.schulz@...rry.de>
---
 .../rockchip/px30-ringneck-haikou-video-demo.dtso  | 53 ++++++++++++++++++++++
 1 file changed, 53 insertions(+)

diff --git a/arch/arm64/boot/dts/rockchip/px30-ringneck-haikou-video-demo.dtso b/arch/arm64/boot/dts/rockchip/px30-ringneck-haikou-video-demo.dtso
index 7d9ea5aa598486680191d52e4c87af59f7b0e579..ea5ce919984f0704d88dc1f5eb02a42d5633656e 100644
--- a/arch/arm64/boot/dts/rockchip/px30-ringneck-haikou-video-demo.dtso
+++ b/arch/arm64/boot/dts/rockchip/px30-ringneck-haikou-video-demo.dtso
@@ -94,6 +94,15 @@ video-adapter-led {
 	};
 };
 
+&cif_clkout_m0 {
+	rockchip,pins =
+		<2 RK_PB3 1 &pcfg_pull_none_12ma>;
+};
+
+&csi_dphy {
+	status = "okay";
+};
+
 &display_subsystem {
 	status = "okay";
 };
@@ -135,6 +144,12 @@ &i2c1 {
 	/* OV5675, GT911, DW9714 are limited to 400KHz */
 	clock-frequency = <400000>;
 
+	focus: focus@c {
+		compatible = "dongwoon,dw9714";
+		reg = <0xc>;
+		vcc-supply = <&cam_afvdd_2v8>;
+	};
+
 	touchscreen@14 {
 		compatible = "goodix,gt911";
 		reg = <0x14>;
@@ -157,6 +172,44 @@ pca9670: gpio@27 {
 		pinctrl-names = "default";
 		reset-gpios = <&gpio0 RK_PA2 GPIO_ACTIVE_LOW>;
 	};
+
+	camera@36 {
+		compatible = "ovti,ov5675";
+		reg = <0x36>;
+		clocks = <&cru SCLK_CIF_OUT>;
+		assigned-clocks = <&cru SCLK_CIF_OUT>;
+		/* Only parent to get exactly 19.2MHz */
+		assigned-clock-parents = <&cru USB480M>;
+		assigned-clock-rates = <19200000>;
+		avdd-supply = <&cam_avdd_2v8>;
+		dvdd-supply = <&cam_dvdd_1v2>;
+		dovdd-supply = <&cam_dovdd_1v8>;
+		lens-focus = <&focus>;
+		orientation = <0>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&cif_clkout_m0>;
+		reset-gpios = <&pca9670 6 GPIO_ACTIVE_LOW>;
+		rotation = <180>;
+
+		port {
+			cam_out: endpoint {
+				data-lanes = <1 2>;
+				link-frequencies = /bits/ 64 <450000000>;
+				remote-endpoint = <&mipi_in_cam>;
+			};
+		};
+	};
+};
+
+&isp {
+	status = "okay";
+};
+
+&isp_in {
+	mipi_in_cam: endpoint {
+		data-lanes = <1 2>;
+		remote-endpoint = <&cam_out>;
+	};
 };
 
 &pinctrl {

-- 
2.49.0