Re: [PATCH v2] remoteproc: mtk_scp: Construct FW path if firmware-name not present

["Arnd Bergmann" <arnd@arndb.de>]

On Thu, Oct 30, 2025, at 09:21, Chen-Yu Tsai wrote:
> On Wed, Oct 29, 2025 at 7:05 PM AngeloGioacchino Del Regno
> <angelogioacchino.delregno@collabora.com> wrote:
>>
>> >
>> > I guess I can send a followup patch?
>>
>> The only followup patch that I deem to be necessary is one adding a symlink
>> or renaming for MT8188's SCP and nothing else.
>
> The firmware was uploaded in March of 2025, and is packaged in Debian
> Trixie, and was also backported to Bookworm. Either adding a symlink or
> renaming it won't trickle down to users for some time. So this seems
> like a possible ABI break, where the ABI is the file name.
>
> Or maybe you don't consider it as such because SCP hasn't been enabled
> in the kernel in any release yet?

It's normally up to the kernel driver to know about the firmware
file names and the order of trying the possible fallbacks, which
is exactly why I originally asked to not rely on the property
from dtb.

If you want a symlink in linux-firmware, that would go the other
way, pointing the old filename to the new location.

    Arnd