Re: [PATCH v1 1/1] arm64: dts: imx8mm-var-dart-sonata: Add OV5640 camera support

[Frank Li <Frank.li@oss.nxp.com>]

On Thu, Oct 15, 2026 at 06:23:01PM +0200, Stefano Radaelli wrote:
> From: Stefano Radaelli <stefano.r@variscite.com>
>
> Add support for the OV5640 camera connected to the Sonata carrier
> board's first MIPI CSI port.

Does this board only support ov5640 camera? Suppose ov5640 module also use
for other boards.

Can you refer https://lore.kernel.org/imx/20261011-expulsion-frivolous-690de090cf9d@spud/
to define connectors?

Frank

>
> Describe the sensor on I2C2, its 24 MHz reference clock, fixed supplies,
> and reset and power-down signals controlled by the GPIO expander.
> Connect the sensor to the MIPI CSI receiver using two data lanes and
> enable the receiver and CSI bridge.
>
> Signed-off-by: Stefano Radaelli <stefano.r@variscite.com>
> ---
>  .../dts/freescale/imx8mm-var-dart-sonata.dts  | 66 +++++++++++++++++++
>  1 file changed, 66 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/freescale/imx8mm-var-dart-sonata.dts b/arch/arm64/boot/dts/freescale/imx8mm-var-dart-sonata.dts
> index 57d29a5c3821..427a255fe8ec 100644
> --- a/arch/arm64/boot/dts/freescale/imx8mm-var-dart-sonata.dts
> +++ b/arch/arm64/boot/dts/freescale/imx8mm-var-dart-sonata.dts
> @@ -75,12 +75,39 @@ clk40m: oscillator {
>  		clock-output-names = "can_osc";
>  	};
>
> +	camera_clk: oscillator-cam {
> +		compatible = "fixed-clock";
> +		#clock-cells = <0>;
> +		clock-frequency = <24000000>;
> +	};
> +
>  	pcie0_refclk: pcie0-refclk {
>  		compatible = "fixed-clock";
>  		#clock-cells = <0>;
>  		clock-frequency = <100000000>;
>  	};
>
> +	reg_camera_1v5: regulator-camera-1v5 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "CAM_1V5";
> +		regulator-min-microvolt = <1500000>;
> +		regulator-max-microvolt = <1500000>;
> +	};
> +
> +	reg_camera_1v8: regulator-camera-1v8 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "CAM_1V8";
> +		regulator-min-microvolt = <1800000>;
> +		regulator-max-microvolt = <1800000>;
> +	};
> +
> +	reg_camera_2v8: regulator-camera-2v8 {
> +		compatible = "regulator-fixed";
> +		regulator-name = "CAM_2V8";
> +		regulator-min-microvolt = <2800000>;
> +		regulator-max-microvolt = <2800000>;
> +	};
> +
>  	reg_usdhc2_vmmc: regulator-vmmc-usdhc2 {
>  		compatible = "regulator-fixed";
>  		pinctrl-names = "default";
> @@ -95,6 +122,10 @@ reg_usdhc2_vmmc: regulator-vmmc-usdhc2 {
>  	};
>  };
>
> +&csi {
> +	status = "okay";
> +};
> +
>  &ecspi1 {
>  	pinctrl-names = "default";
>  	pinctrl-0 = <&pinctrl_ecspi1>;
> @@ -200,6 +231,26 @@ ft5x06_ts: touchscreen@38 {
>  		wakeup-source;
>  	};
>
> +	ov5640_mipi1: camera@3c {
> +		compatible = "ovti,ov5640";
> +		reg = <0x3c>;
> +		clocks = <&camera_clk>;
> +		clock-names = "xclk";
> +		AVDD-supply = <&reg_camera_2v8>;
> +		DOVDD-supply = <&reg_camera_1v8>;
> +		DVDD-supply = <&reg_camera_1v5>;
> +		powerdown-gpios = <&pca6408_1 3 GPIO_ACTIVE_HIGH>;
> +		reset-gpios = <&pca6408_1 1 GPIO_ACTIVE_LOW>;
> +
> +		port {
> +			ov5640_mipi1_ep: endpoint {
> +				remote-endpoint = <&mipi1_sensor_ep>;
> +				clock-lanes = <0>;
> +				data-lanes = <1 2>;
> +			};
> +		};
> +	};
> +
>  	extcon_ptn5150: typec@3d {
>  		compatible = "nxp,ptn5150";
>  		reg = <0x3d>;
> @@ -263,6 +314,21 @@ st33ktpm2xi2c: tpm@2e {
>  	};
>  };
>
> +&mipi_csi {
> +	status = "okay";
> +
> +	ports {
> +		port@0 {
> +			reg = <0>;
> +
> +			mipi1_sensor_ep: endpoint {
> +				remote-endpoint = <&ov5640_mipi1_ep>;
> +				data-lanes = <1 2>;
> +			};
> +		};
> +	};
> +};
> +
>  &pcie_phy {
>  	fsl,refclk-pad-mode = <IMX8_PCIE_REFCLK_PAD_INPUT>;
>  	fsl,tx-deemph-gen1 = <0x2d>;
> --
> 2.47.3
>
>