Re: [PATCH] arch/sh: Drop CONFIG_FIRMWARE_EDID from defconfig files

From: Jani Nikula

Date: Wed Apr 01 2026 - 09:24:01 EST


On Wed, 01 Apr 2026, Thomas Zimmermann <tzimmermann@xxxxxxx> wrote:
> Am 01.04.26 um 10:46 schrieb John Paul Adrian Glaubitz:
>> My SH7785LCR board does have a DVI output as well as a Silicon Motion SM-501 video
>> chip though, so I think it should be able to perform EDID in general. Or is the
>> protocol actually tied to the x86 architecture? What about monitors on a PowerPC
>> workstation, for example? Does EDID not work there at all?
>
> Yes, your system can fetch the EDID via the Linux driver. But
> FIRMWARE_EDID is a special feature where the EDID gets delivered by the
> boot loader. This has always only been possible on x86 or with EFI.

And then there's the completely separate CONFIG_DRM_LOAD_EDID_FIRMWARE
config to allow loading the EDID through the kernel firmware loader. Not
confusing or misleading at all. ;D

BR,
Jani.


--
Jani Nikula, Intel