How to change resolution for mx8-dsi-oled1 display

[Bharat]

Hello ,

We are using imx8mmevk board with MX8-DSI-OLED1A display which  is working fine with 1920x1080 resolution.We are using panel-raydium-rm67191 driver for display.

How to change resolution from 1920x1080 to 640x480?

Regards,

Bharat.

[igorpadykov]

Hi Bharat

MX8-DSI-OLED1A display is specificed to work with 1920x1080 resolution according to

its datasheet. For 640x480 resolution it is necessary to attach lcd supporting that resolution

and make changes in panel-raydium-rm67191 driver : timings in  struct drm_display_mode default_mode,
initialization sequence in struct cmd_set_entry mcs_rm67191[] :

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

Best regards
igor