Re: [PATCH v3 0/2] allow simple{fb, drm} drivers to be used on non-x86 EFI platforms

Thomas Zimmermann
2021-07-15T08:11:55Z

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Hi

Am 13.07.21 um 18:59 schrieb Javier Martinez Canillas:
> On 6/25/21 3:09 PM, Javier Martinez Canillas wrote:
>> 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.

Best regards
Thomas

>
> Best regards,
>

--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Maxfeldstr. 5, 90409 Nürnberg, Germany
(HRB 36809, AG Nürnberg)
Geschäftsführer: Felix Imendörffer

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