On Mon, Jul 19, 2021 at 09:10:52AM +0200, Ard Biesheuvel wrote:

On Mon, 19 Jul 2021 at 04:59, Dave Airlie [off-list ref] wrote:

quoted

On Thu, 15 Jul 2021 at 18:11, Thomas Zimmermann [off-list ref] wrote:

quoted

Hi

Am 13.07.21 um 18:59 schrieb Javier Martinez Canillas:

quoted

On 6/25/21 3:09 PM, Javier Martinez Canillas wrote:

quoted

The simplefb and simpledrm drivers match against a "simple-framebuffer"
device, but for aarch64 this is only registered when using Device Trees
and there's a node with a "simple-framebuffer" compatible string.

There is no code to register a "simple-framebuffer" platform device when
using EFI instead. In fact, the only platform device that's registered in
this case is an "efi-framebuffer", which means that the efifb driver is
the only driver supported to have an early console with EFI on aarch64.

The x86 architecture platform has a Generic System Framebuffers (sysfb)
support, that register a system frambuffer platform device. It either
registers a "simple-framebuffer" for the simple{fb,drm} drivers or legacy
VGA/EFI FB devices for the vgafb/efifb drivers.

The sysfb is generic enough to be reused by other architectures and can be
moved out of the arch/x86 directory to drivers/firmware, allowing the EFI
logic used by non-x86 architectures to be folded into sysfb as well.

Any more comments on this series? It would be nice for this to land so the
simpledrm driver could be used on aarch64 EFI systems as well.

The patches have already been acked by x86 and DRM folks.

Time to get this merged, I'd say. People are asking for these patches
already.

Can we just merge via drm-misc and make sure the acks are present and
I'll deal with the fallout if any.

Fine with me. Could you stick it on a separate branch so I can double
check whether there are any issues wrt the EFI tree?

It'll pop up in linux-next for integration testing or you can pick up the
patch here for test-merge if you want.

And since Dave has given a blanket cheque for handling fallout he'll deal
with the need for fixups too if there's any.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch

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