Re: [RFC 4/4] drm: Add NVIDIA Tegra support

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



* 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
framework.

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?

Thierry

Attachment: pgpiHQyNW0E4c.pgp
Description: PGP signature

_______________________________________________
dri-devel mailing list
dri-devel@xxxxxxxxxxxxxxxxxxxxx
http://lists.freedesktop.org/mailman/listinfo/dri-devel

[Index of Archives]     [Linux DRI Users]     [Linux Intel Graphics]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [XFree86]     [Linux USB Devel]     [Video for Linux]     [Linux Audio Users]     [Linux Kernel]     [Linux SCSI]     [XFree86]
  Powered by Linux