On 14.8.2017 15:49, Daniel Vetter wrote:

On Mon, Aug 14, 2017 at 3:46 PM, Michal Simek [off-list ref] wrote:

quoted

On 14.8.2017 15:42, Linus Walleij wrote:

quoted

On Tue, Aug 8, 2017 at 10:10 AM, Michal Simek [off-list ref] wrote:

quoted

Enable this driver for Xilinx ZynqMP.

Signed-off-by: Michal Simek <redacted>

Not a comment on the patch per se, but I would advice you to look into
migrating the Xilinx frame buffer to DRI/DRM/KMS.

The recent CMA helpers has made it very simple and focused to write
DRM drivers. See for example drivers/gpu/drm/pl111

There is a lot of work done by xilinx in this area gpu/drm/kms. I am
trying to upstream what xilinx has in soc tree and this change is there.
Maybe in this case it is useless and none is using it but it is there
and I don't want to break user. There shouldn't be any technical problem
to run this old fb driver in pl on arm64.

A proper drm kms driver gives you backwards compat for fbdev for free.
And we're taking in patches to fill feature gaps in our fbdev
emulation as people hit them. There no reason nowadays at all to merge
new fbdev native drivers, your users will be taken care of by a drm
kms driver fully.

You can look at xilinx work in this area.
https://github.com/Xilinx/linux-xlnx
Unfortunately they haven't started to upstream it.

In this particular case I am not aware about anybody who is going to
write new driver for this soft IP.

Thanks,
Michal