[Letux-kernel] fb tiler considered harmful
H. Nikolaus Schaller
hns at goldelico.com
Wed Feb 8 07:19:56 CET 2017
> Am 08.02.2017 um 06:52 schrieb Andreas Kemnade <andreas at kemnade.info>:
> As I wanted to test the new alsa routing patches, there was one problem:
> No Framebuffer output,
> Suspicious pieces in console log:
> [ 2.556823] omapdrm omapdrm.0: DMM not available, disable DMM support
> [ 2.565490] [drm] Supports vblank timestamp caching Rev 2 (21.10.2013).
> [ 2.565551] [drm] No driver support for vblank timestamp query.
> [ 2.566528] omapdrm omapdrm.0: Tiled buffers require DMM
> [ 2.567382] omapdrm omapdrm.0: failed to allocate buffer object
> [ 2.567718] omapdrm omapdrm.0: omap_fbdev_init failed
> [ 2.567932] [drm] Initialized omapdrm 1.0.0 20110917 on minor 0
> I have to add that I have compiled the framebuffer statically and using it
> for console output.
> After reverting the following branches, the framebuffer worked again.
Thanks for noting!
This means the TILER should somehow be made OMAP5 (Pyra) only or fixed
to gracefully handle OMAP3.
BR and thanks,
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