Hi, all
   I am porting Tizen2.4 to Orangepi+, and the X window system failed.
I use mali_drv.so(I got from some place without sourcecode), and when X starts, server load video driver,
but mali_drv.so call drm operation in the kernel.

error log:
[   280.214] (**) MALI(0): Use umplock across processes.
[   280.224] (EE) MALI(0): [mali_drm_open_master:1030] Error: mali_drm_open_master Unable to open DRM: No such file or directory
.
[   280.224] (EE) MALI(0): [MaliPreInit:1163] Error: Failed to be master of DRM!.
[   280.224] (II) UnloadModule: "mali"

As you know, kernel 3.4.39 don't support drm much.  So I guess there is no drm driver in the kernel.
Can anyone help me ?

I wrote a DRM driver for the H3 kernel 4.5 (see http://moinejf.free.fr/opi2).I know that some people are working on the MALI driver, but I don't know its actual state.
BTW, does Tizen need X11?

Source code can be found here: https://github.com/loboris/OrangePI-Kernel

Yes, before Tizen2.4, use X11 xorg version.
Tizen 3.0 use wayland.

Tizen2.4:
X.Org X Server 1.16.0
Release Date: 2014-07-16
X Protocol Version 11, Revision 0
Current version of pixman: 0.28.2