MIL (mi-lcd) with intel 8080 24-bits bus is low fps in DRM_FORMAT_XRGB8888 mode

[thinkoco]

now, the linux tinydrm ili9806 driver for MIL support DRM_FORMAT_XRGB8888 and RBG 24-bits bus only. low fps.

./modetest -M "fb_ili9806" -s 28:854x480@XR24 -v
setting mode 854x480-0Hz@XR24 on connectors 28, crtc 30
freq: 6.35Hz
freq: 6.34Hz
freq: 6.34Hz