Re: [PATCH v2] drivers/firmware: fix SYSFB depends to prevent build failures
From: Mark Brown
Date: Tue Jul 27 2021 - 07:50:11 EST
On Tue, Jul 27, 2021 at 01:32:29PM +0200, Javier Martinez Canillas wrote:
> On 7/27/21 1:17 PM, Geert Uytterhoeven wrote:
> > Do all (embedded) EFI systems have a frame buffer?
> That's a good question. I don't know if all EFI firmwares are expected
> to provide a GOP or not. But even the u-boot EFI stub provides one, if
> video output is supported by u-boot on that system.
No, GOP is only mandatory for systems with a graphical console device
even assuming things fully conform to the spec. Indeed I've got a
non-embedded EFI based system sitting next to my desk here which only
has a serial console, never mind anything embedded.
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