Direct MIPI-DSI display support via Dahlia carrier and customized mezzanine adapter. Is it possible to do that by writing an overlay only without any customized display driver? Which nodes to hook on to comunicate with display chip: MIPI-DSI OTA7290b (display timing and init code setup / MIPI internal / no external I2C interface)
Greetings @ReinholdS,
Is it possible to do that by writing an overlay only without any customized display driver?
If this chip doesn’t require any special driver then yes only device tree level changes would be needed. However I’m not familiar with this particular display chip and I couldn’t find much info online. So I can’t say for certain whether it does require a driver or not.
As for device tree implementation I’d imagine something like this: verdin-imx8mm_sn65dsi84_overlay.dts « overlays - device-tree-overlays.git - Sources for Device Tree Overlays
The above overlay hooks up the innate mipi-dsi interface on the i.MX8MM to the LVDS adapter chip we use. So imagine something similar. Though this still begs the question whether some kind of driver is needed here or not.
Best Regards,
Jeremias