We use NXP IMX 8MM EVK with Yocto Linux 4.14.98_2.0.0 and custom MIPI DSI display (DRM driver made on top of Raydeon 67191 driver). Our display has a 720x1280 resolution and it is vertical.
Now I have to rotate display 270 degrees.
I've enabled CONFIG_FRAMEBUFFER_CONSOLE_ROTATION option in kernel config in order to rotate framebuffer console output and I am able to rotate console output with following commands:
root@imx8mmevk:~# cd /sys/class/graphics/fbcon
root@imx8mmevk:/sys/class/graphics/fbcon# echo 3 | sudo tee rotate_all
Next I have to rotate framebuffer for the gst-player video playback, QML viewer, IP camera input. So I want portrait display to act as a landscape one.
I was trying to write 3 to /sys/class/graphics/fb0/rotate, but with no effect.
Is there any support for framebuffer rotation?