android(Oreo) MIPI panel porting(IMX8MQEVK)

dngnstjd — Wed, 22 Jun 2022 14:58:50 GMT

Hi.

I am porting the mipi dsi panel driver.

The cpu is imx8mq.

The driver code is using "panel-sn65dsix.c"

I have confirmed that it works in Oreo(imx_o8.1.0_1.3.0, kernel version is 4.9.78)

But, I need to upgrade the kernel version.

Currently, I am downloading "imx_o8.1.0_2.0.0" and working on porting it.(kernel version is 4.14.98)

However, driver porting failed.

The driver "sn65_panel_prove" seem to work, but it stop in the "sn65_panel_get_modes".

As a result of checking the kernel log, there is

"[drm] Cannot find any crtc or sizes", "[drm] found mode none"

I think the drm sequence is different depending on the kernel version.

I attach the driver code and device tree file, I am using.

I need your help!!!

Thankyou!!

topic android(Oreo) MIPI panel porting(IMX8MQEVK) in i.MX Processors