Display resolution changed in IMX8QM-MEK

[vinothkumars]

Dear NXP,

I am using IMX8QM-MEK with Android 9 Automotive.

I connected new display with PC is working fine with proper resolution. But, the resolution got changed and touch also not working when I connected with MEK board.

What could be the reason and how to configure for all display resolution ?

I need some expert help,

Thanks & Regards,

[igorpadykov]

Hi Vinoth

it depends on LCD connection, for example for dsi one can look at imx8qm-mek-dsi-rm67191.dts:

https://source.codeaurora.org/external/imx/linux-imx/tree/arch/arm64/boot/dts/freescale/imx8qm-mek-d...

and its driver 

https://source.codeaurora.org/external/imx/linux-imx/tree/drivers/gpu/drm/panel/panel-raydium-rm6719...

Perform specific for that lcd initialization:  struct cmd_set_entry manufacturer_cmd_set[] ,

adjust timings in  struct "drm_display_mode default_mode"

Best regards
igor