IMX8MQ Device Tree Association

[ximenbingmeng]

I am porting a mipi driver on IMX93, but I encountered some issues with the device tree,
a.The original device tree is as follows, and I directly added it to my IMX8MQ, changed its name, and commented out some pins;
Firstly, how can we determine which controller mipi_dsi has been connected to and its relationship?

ximenbingmeng_0-1717725020077.png

b.Is it possible for the following error to occur due to the device tree? IMX DRM display subsystem: No available ports, how should we investigate?

ximenbingmeng_1-1717725051423.png

c.What is the difference between placing the port keyword in the "device tree" on the same node and different nodes? For example, the following two screenshots;

ximenbingmeng_2-1717725387971.pngximenbingmeng_3-1717725400594.png

d. According to the "schematic" or "device tree" description, if the device tree is a reference to a name, how can the "association relationship" of the device tree be identified?

Thank you very much!

[Zhiming_Liu]

The MIPI name in i.MX93 is dsi, not mipi_dsi_bridge.

Zhiming_Liu_0-1718082845765.png

If you want to port new dsi panel, please refer arch/arm64/boot/dts/freescale/imx93-11x11-evk-rm67199.dts. Do not include your settings about i.MX8MQ.

Zhiming_Liu_1-1718082912060.png