[RFC 4/4] drm: Add NVIDIA Tegra support
thierry.reding at avionic-design.de
Thu Apr 12 02:33:01 PDT 2012
* Sascha Hauer wrote:
> You might want to have a look at the sdrm patches I recently posted to
> dri-devel and arm Linux Kernel. Among other things they allow to
> register crtcs/connectors/encoders seperately so that each of them can
> have its own representation in the devicetree. I haven't looked into
> devicetree support for DRM, but with or without devicetree the problem
> that we do not have a single PCI card for registering all DRM components
> is the same.
I'll do that. One interesting use-case that's been on my mind for some time
is if it would be possible to provide a CRTC via DRM that isn't part of the
SoC or DRM "device" but which can display a framebuffer prepared by the DRM
In other words I would like to use the Tegra hardware to render content into
a framebuffer (using potentially the 3D engine or HW accelerated video
decoding blocks) but display that framebuffer with a CRTC registered by a
different driver (perhaps provided by a PCIe or USB device).
I think such a setup would be possible if the CRTC registration can be
decoupled from the DRM driver. Perhaps sdrm even supports that already?
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Size: 198 bytes
Desc: not available
More information about the dri-devel