topic I.MX8 DSI pixel format in i.MX Processors

I.MX8 DSI pixel format

wenFT — Mon, 24 May 2021 03:18:41 GMT

I am using I.MX8 MINI, I'm developing a new DSI device based on linux4.14 and refer to driver drivers/gpu/drm/panel/panel-raydium-rm67191.c and set the dsi->format as MIPI_DSI_FMT_RGB888. Now it can display, but colors are wrong, rgb display as bgr, could you guide me how to set it? the following are the feedback of fbset

root@imx8mmevk:~# fbset

mode "1080x1920"
geometry 1080 1920 1080 1920 32
timings 0 0 0 0 0 0 0
accel true
rgba 8/16,8/8,8/0,0/0
endmode

Re: I.MX8 DSI pixel format

joanxie — Wed, 26 May 2021 07:50:49 GMT

try to change this under westion at "/etc/xdg/weston/weston.ini"

Re: I.MX8 DSI pixel format

wenFT — Thu, 27 May 2021 03:42:10 GMT

@joanxie

Thanks for your reply. I tied to set the different value of gbm-format of "/etc/xdg/weston/weston.ini", but failed.

Except the colors enter the system, the colors of boot logo are also display as bgr.

I.MX8 DSI pixel format

joanxie — Fri, 09 Jul 2021 07:56:55 GMT

change output mode to your resolution at "/etc/xdg/weston/weston.ini", then restart weston

"systemctl restart weston"