Hi,
We are working on iMX8QM custom board (B0 CPU) with 4.14.98 Kernel BSP.
Here, both HDMI-RX and MIPI-CSI (OV5640 Camera) are working individually. We used following reference MEK DTS files,
arch/arm64/boot/dts/freescale/fsl-imx8qm-mek-ov5640.dts -------- For MIPI-CSI ov5640 camera
arch/arm64/boot/dts/freescale/fsl-imx8qm-mek-hdmi-in.dts -------- For HDMI RX
While cconfiguring both HDMI-RX and MIPI-CSI nodes in DTS file, the '/dev/videox' nodes are not generating in file system.
The DTS configuration as below,
/* Multimedia: Image Sensing Interface */
&isi_0 {
status = "okay";
};&isi_1 {
status = "okay";
};/* HDMI: HDMI-RX */
&isi_2 {
interface = <4 0 2>; /* <Input MIPI_VCx Output>
Input: 0-DC0, 1-DC1, 2-MIPI CSI0, 3-MIPI CSI1, 4-HDMI, 5-MEM
VCx: 0-VC0, 1-VC1, 2-VC2, 3-VC3, MIPI CSI only
Output: 0-DC0, 1-DC1, 2-MEM */
status = "okay";
};&isi_3 {
/* For HDMI RX 4K chain buf */
interface = <4 0 2>;
status = "okay";
};&isi_4 {
status = "okay";
};&isi_5 {
status = "okay";
};&isi_6 {
status = "okay";
};&isi_7 {
status = "okay";
};
Is this configuration correct? Is it possible to configure both HDMI-RX and MIPI-CSI (OV5640 Camera) simultaneously in DTS file?
Best Regards,
Prashanth Kumar K
HI prashanth:
I got the same problem, have you fixed it ?
Hello,
Please take a look to this app note
and also take a look to this presentation
This may be helpful for you
Unfortunately the i.MX8X family is not officially supported yet, please note that i.MX8QM processor is still in pre-production stage, sorry for the inconvenience and the problems this may cause.
Thank you for your understanding,
Best regards,
Aldo.