Is it possible to enable LVDS over DT overlay?

MicMoba — Mon, 04 Jul 2022 06:28:34 GMT

I am trying to enable LVDS over a DeviceTree overlay.
Why?
I have a baseboard with a i.MX8MP SOM. This baseboard can have more or less features depending on the assambling. Furthermore I want to connect different LVDS panels (7"/10") to this board.
The feature set of this board should automatic set by loading different device-tree overlays. Every feature get its own overlay. For example:
Sound -> sound.dtbo
Temprature -> temp.dtbo
Ethernet -> eth.dtbo
All this overlays should load by a systemd service as early as possible.
All features work fine but not the LVDS. I can't get it work.
I need to set the panel driver and the backlight settings in the overlay.
Is there a way to define a dummy panel and overwrite it with the DT overlay? I tried to enable all (LCD-Controller, LVDS, ldb, ldb-pyh) in my overlay but the kernel does not do a probe after loading the overlay.

Re: Is it possible to enable LVDS over DT overlay?

MicMoba — Mon, 11 Jul 2022 04:52:50 GMT

It seems that it is not possible. I solved this issue by applying the DT overlay for my LVDS during the uboot. Afterwards I apply all other DT overlays with a systemd service.

Re: Is it possible to enable LVDS over DT overlay?

smitgh20562 — Mon, 11 Jul 2022 05:38:15 GMT

Facing same issue here. Help is appreciated. MyAtriumHealth Login

topic Is it possible to enable LVDS over DT overlay? in i.MX Processors

Is it possible to enable LVDS over DT overlay?

Re: Is it possible to enable LVDS over DT overlay?

Re: Is it possible to enable LVDS over DT overlay?