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Linux/AM5728: omapdrm in linux am5728 c4.9

Prodigy 40 points

Replies: 2

Views: 1724

Part Number: AM5728

Tool/software: Linux

Hello,

We are using a custom board having AM5728 processor, The board has HDMI and RGB (through LVDS) interfaces. It  works fine, if I use arago linux version of kernel 4.4. When I use 4.9 kernel, it doesn't work.

# modetest
trying to open device 'i915'...failed
trying to open device 'radeon'...failed
trying to open device 'nouveau'...failed
trying to open device 'vmwgfx'...failed
trying to open device 'omapdrm'...failed
....
no device found

I have grepped log for v. 4.9:

# dmesg | grep drm
[    2.331052] [drm] Initialized
[   15.722112] [drm] Initialized pvr 1.14.3699939 20110701 on minor 0

In v. 4.4 it is:

[    1.876664] [drm] Initialized drm 1.1.0 20060810
[    2.379288] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
[    2.379289] [drm] No driver support for vblank timestamp query.
[    2.383661] [drm] Enabling DMM ywrap scrolling
[    2.455023] omapdrm omapdrm.0: fb0: omapdrm frame buffer device
[    2.492277] [drm] Initialized omapdrm 1.0.0 20110917 on minor 0
[   15.747378] [drm] Initialized pvr 1.14.3699939 20110701 on minor 1

omapdrm isn't initialized.

CONFIG_DRM=y in the .config

What is the doubt?

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