Two different camera on MIPI-CSI using mux

[ajita02]

Hi all,

We want to use two different cameras on single MIPI-CSI port using MUX with IMX8MM linux. At a time only one camera module will be active in runtime. How to make dts entries for this? Can someone guide us achieve this objective?

Thanks & Regards,

Ajita

#imx8mm #linux

[ajita02]

@jack_mao @joanxie Please help

[joanxie]

maybe you can refer to this topic, with switch NX3DV642

bring up dual Camera under single mipi csi - NXP Community

[ajita02]

Hi @joanxie @Bio_TICFSL ,

We have tried to implement the patch shared by @joanxie. We made changes in these files "https://github.com/nxp-imx/linux-imx/blob/lf-6.1.y/drivers/staging/media/imx/imx8-mipi-csi2-sam.c" and "“https://github.com/nxp-imx/linux-imx/blob/lf-6.1.y/drivers/staging/media/imx/imx8-media-dev.c” . But IMX8MM is not using any of these files. So as a result its only probing first endpoint mentioned in dts and ignoring second endpoint of camera.

Can you provide us a lead?

Thanks & Regards,

Ajita

[Bio_TICFSL]

Hello,

Even you connect convert board, but imx8mm doesn't have virtual channel to handle this, if you need dual camera, maybe you can use MIPI CSI+ usb camera

Regards

[ajita02]

Hi @Bio_TICFSL ,

Can we use single channel used by mux as at a time single camera will be in use? Mux select line will be handle by GPIO.

Thanks & Regards,

Ajita