GPU does not work on CB2 (kernel4.19)

Hello,

I am attempting to use the Panfrost driver for the Mali-G52 GPU on my CB2 board, but I am encountering an issue. After installing the driver and checking the OpenGL status using the following command:

glxinfo | grep "OpenGL"
The output shows:

OpenGL renderer string: llvmpipe
This indicates that the system is falling back to software rendering (llvmpipe) instead of using the Mali-G52 GPU for hardware acceleration.

Problem:
I followed the instructions to install the Panfrost driver for the Mali-G52 GPU. However, the driver is not working as expected because my kernel version is 4.19. This version appears to be too old to fully support Panfrost.
As a result, the Mali-G52 GPU is not being used for hardware acceleration, and software rendering is active instead.
Kernel Version:
My current kernel version is 4.19, and I suspect that this is preventing the Panfrost driver from functioning properly with the Mali-G52 GPU.
Expected Behavior:
I expect the system to use the Mali-G52 GPU with hardware acceleration after installing the Panfrost driver.
Actual Behavior:
The system is falling back to software rendering (llvmpipe) instead of using the GPU.
Questions:
Can anyone confirm that kernel 4.19 does not support Panfrost for the Mali-G52 GPU, and a newer kernel version is required?
Is there a way to make the Panfrost driver work with kernel 4.19, or do I need to upgrade to kernel 5.x or later?
Does anyone have suggestions or steps to proceed with upgrading the kernel or using a different method for GPU acceleration?
Thank you in advance for your help!