Re: [PATCH 11/16] of: property: Allow fw_devlink device-tree support for x86

Arnd Bergmann
2025-04-22T12:00:35Z

On Tue, Apr 8, 2025, at 15:49, Herve Codina wrote:
> On Mon, 7 Apr 2025 18:36:28 +0300
>> On Mon, Apr 07, 2025 at 04:55:40PM +0200, Herve Codina wrote:
>>
>> This is incorrect, they never had ACPI to begin with. Also there is third
>> platform that are using DT on x86 core — SpreadTrum based phones.
>
> I will rework the commit log to avoid 'mixing ACPI and device-tree'
>
> For "SpreadTrum based phones", do you have an idea about the Kconfig symbol
> I could use to filter our this x86 systems?
>
> Anything I find upstream related to SpreadTrum seems base on ARM cpus.
> I probably miss something.

This is the Intel SOFIA platform with chips from both Spreadtrum (now
Unisoc) and Rockchips, using a port of the arch/arm/ code DT on x86,
about 10 years ago.

That code was never upstreamed, and is long abandoned by everyone.

>> And not sure about AMD stuff (Geode?).
>
> Same here, if some AMD devices need to be filtered out, is there a specific
> Kconfig symbol I can use ?

The only one I can think of is CONFIG_OLPC, the XO-1 was a Geode LX,
while XO-1.5 used a VIA C7, both with actual open firmware (not just
fdt).

Arnd