i.MX8M Plus with dual OV5648 sensors

[pavan-m]

Hi,

We are using i.MX8M Plus based SoC, with yocto. Following are the specifications of our project

OS: Yocto Linux

Kernel-Version: 5.4.70

Processor: i.MX8M Plus

Camera Sensor: OV5648

Interface: MIPI-CSI2

We had interfaced OV5648 camera sensor with our board. Initially, the kernel driver for OV5648 is not available in kernel version 5.4.70. so we downloaded from the latest kernel version and ported it to our version and compiled it successfully. created device tree nodes for OV5648 camera sensors and loaded the image. Captured the images using the v4l2 APIs. below are the capture format details

H: 720

W: 1280

FMT: V4L2_PIX_FMT_SBGGR8

Frame Rate: 30 frames/sec

Issue: colors on the captured image are mismatched as per the actual scene even the test pattern images are also not as expected colors

Device tree config:

&i2c2 {
ov5648_0: camera@36 {
reg = <0x36>;
clocks = <&cam_clk>;
assigned-clocks = <&cam_clk>;
csi_id = <0>;
assigned-clock-rates = <24000000>;
clock-names = "ext";
compatible = "ovti,ov5648";
mipi_csi;
status = "disabled";

port {
ov5648_0_mipi_ep: endpoint {
data-lanes = <1 2>;
clock-lanes = <0>;
bus-type = <4>;
link-frequencies = /bits/ 64 <210000000 168000000>;
remote-endpoint = <&mipi_csi0_ep>;
};
};
};
};

&mipi_csi_0 {
#address-cells = <1>;
#size-cells = <0>;
status = "okay";
port@0 {
reg = <0>;
mipi_csi0_ep: endpoint {
remote-endpoint = <&ov5648_0_mipi_ep>;
data-lanes = <2>;
csis-hs-settle = <13>;
csis-clk-settle = <2>;
csis-wclk;
};
};
};

&isi_0 {
status = "okay";

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

&ov5648_0 {
status = "okay";
};

Attached are the files for OV5648 driver, captured images

Looking forward to get a resolution sooner

Thanks,

Pavan M.