IMX8MP ISI.0 MIPI-CSI2 Camera Capture

[guffigubber]

Hi!

I have a processor IMX8MP with a kernel version 5.4.70.

I am trying to connect a camera to csi0 (camera --> mipi csi 0 --> isi0 --> /dev/video0).

On another input (camera --> mipi csi 1 --> isi0 --> /dev/video1) it works without problems with the same settings.

What could be the problem?

camera_0: camera_0_mipi@3e {
	compatible = "camera_0";
	reg = <0x3e>;
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_csi0_rst>, <&pinctrl_csi0_pwn>;
	csi_id = <0>;
	reset-gpios = <&gpio3 19 GPIO_ACTIVE_LOW>;
	enable-gpios = <&gpio3 20 GPIO_ACTIVE_HIGH>;
	mipi_csi;
	status = "okay";

	port {
		camera_mipi_0_ep: endpoint {
			bus-type = <4>;
			data-lanes = <1 2 3 4>;
			clock-lanes = <0>;
			remote-endpoint = <&mipi_csi0_ep>;
		};
	};
};

camera_1: camera_1_mipi@3c {
	compatible = "camera_1";
	reg = <0x3c>;
	pinctrl-names = "default";
	pinctrl-0 = <&pinctrl_csi1_rst>, <&pinctrl_csi1_pwn>;
	csi_id = <1>;
	reset-gpios = <&gpio1 6 GPIO_ACTIVE_LOW>;
	enable-gpios = <&gpio2 11 GPIO_ACTIVE_HIGH>;
	mipi_csi;
	status = "okay";
	port {
	        camera_mipi_1_ep: endpoint {
		        bus-type = <4>;
			data-lanes = <1 2 3 4>;
			clock-lanes = <0>;
			remote-endpoint = <&mipi_csi1_ep>;
		};
	};
};


&mipi_csi_0 {
	#address-cells = <1>;
	#size-cells = <0>;
	status = "okay";
	port@0 {
		reg = <0>;
		mipi_csi0_ep: endpoint {
			remote-endpoint = <&camera_mipi_0_ep>;
			data-lanes = <4>;
			csis-hs-settle = <13>;
			csis-clk-settle=<2>;
			csis-wclk;
		};
	};
	
};

&mipi_csi_1 {
	#address-cells = <1>;
	#size-cells = <0>;
	status = "okay";

	port@1 {
		reg = <1>;
		mipi_csi1_ep: endpoint {
			remote-endpoint = <&camera_mipi_1_ep>;
			data-lanes = <4>;
			csis-hs-settle = <13>;
			csis-clk-settle=<2>;
			csis-wclk;
		};
	};
};

&cameradev {
	status = "okay";
};

&isi_0 {
	status = "okay";

	cap_device {
		status = "okay";
	};

//	m2m_device {
//		status = "okay";
//	};
};

&isi_1 {
	status = "okay";

	cap_device {
		status = "okay";
	};
};

&isp_0 {
    status = "disabled";
};

&isp_1 {
	status = "disabled";
};

&dewarp_0 {
    status = "disabled";
};

[Bio_TICFSL]

Hello,

The camera works on continous mode, it can't work DSI+CSI0, after change to non-continous mode, it can work DSI+CSI0.

Regards

[guffigubber · Accepted solution]

Thank you! Problem solved!

The camera started sending video when turned on. And CSI1 could immediately capture the video.
For CSI0, you need to turn off the camera so that it does not send video.