Re: [GIT PULL] Devicetree updates for v6.13

Krzysztof Kozlowski
2024-11-25T11:33:51Z

On 25/11/2024 12:00, Krzysztof Kozlowski wrote:
> On 25/11/2024 11:34, Chen-Yu Tsai wrote:
>> On Mon, Nov 25, 2024 at 5:48 PM AngeloGioacchino Del Regno
>> <angelogioacchino.delregno@collabora.com> wrote:
>>>
>>> Il 24/11/24 17:59, Sasha Levin ha scritto:
>>>> On Sun, Nov 24, 2024 at 05:47:33PM +0100, Krzysztof Kozlowski wrote:
>>>>> On 24/11/2024 17:29, Sasha Levin wrote:
>>>>>> Hi Rob,
>>>>>>
>>>>>> On Mon, Nov 18, 2024 at 03:07:30PM -0600, Rob Herring wrote:
>>>>>>> of: WARN on deprecated #address-cells/#size-cells handling
>>>>>>
>>>>>> With the commit above, I've started seeing boot warnings on a few
>>>>>
>>>>> And same boards do not report problems on the next?
>>>>
>>>> Looks like they do. I haven't checked it previously, but I see that we
>>>> have similar warnings on a few boards that KernelCI is testing -next on.
>>>>
>>>
>>> That's... horrendous.
>>>
>>> I hope that we can get a proper fix with a bootloader update on these (now very
>>> old) devices... Adding a Google engineer to the loop so that he can follow up
>>> internally.
>>
>> AFAIK that's unlikely going to happen given the resources needed from
>> the ODMs for a firmware re-qualification. Or we would have fixed the GIC
>> bug in ATF and had pseudo-NMI.
>>
>> Some of the firmware code involved is 10 years old, so even the RK3399
>> Chromebooks, which no longer have support, could suffer from this as
>> well.
>>
>>> The alternative would be to hack-in a firmware node to mt8183-kukui.dtsi, but....
>>> ...ugh. That'd be indeed a hack for the sole purpose of fixing a bootloader that
>>> is acting in a broken way, and I don't like that at all (...and I'm sure I'm not
>>> alone!).
>>
>
> Then we should add it to the exception list. Let me take a look at this.
https://lore.kernel.org/linux-devicetree/20241125113151.107812-1-krzysztof.kozlowski@linaro.org/T/#u

I sent a fix for this platform only. You did not paste links to other
failing platforms (and sorry but kernelci web interface was absolutely
unmanageable and unusable, so I am not going to even try to look for
them) so not sure who should be added to list of exceptions.

Best regards,
Krzysztof