Yocto MIPI driver for iMX8M Mini

[Alirezah95]

Hi,

I'm working on a Yocto image for iMX8M Mini and I've created an image for imx8mm-lpddr4-evk machine on the kirkstone branch. The problem is that is looks like mipi driver is not included in the image and therefore nothing is displayed when the board is connected to an hdmi display using mipi-hdmi converter. I've also enabled mipi module for iMX.7 and iMX.8 from the bitbake menuconfig but it did not work too. How can i correctly add the required modules?

[Alirezah95]

@Zhiming_Liu  It looks like kirsktone branch of meta-freescale has issues. I switched to dunfell and display is working fine.  I've compared .config files of both branches and it turns out that in kirkstone no option about MIPI is enabled in the config file, while in dunfell we have all these modules enabled. 

Part of uboot logs in dunfell image:

[*]-Video Link 0 (1920 x 1080)
        [0] lcdif@32e00000, video
        [1] mipi_dsi@32e10000, video_bridge
        [2] adv7535@3d, panel

[Zhiming_Liu]

Hi @Alirezah95 

The demo images are compiled from same Yocto project, there should not have issues if demo images can work.

[Zhiming_Liu]

Have you tried demo images on website?

[Alirezah95]

Yes and they all work fine.