Re: [PATCH v2] platform/x86/amd/pmc: Add Thinkpad L14 Gen3 (21C5) to quirk_s2idle_bug

[Mark Pearson]

On Mon, Sep 28, 2026, at 12:09 PM, Mario Limonciello wrote:
> On 9/28/26 11:06, Bruno BOI wrote:
>> The Thinkpad L14 Gen3 with DMI product name 21C5 is affected by the same
>> s2idle resume stall as the already listed 21C6 variant: resuming from
>> s2idle blocks for several seconds before the kernel resumes.
>> 
>> DMI_MATCH() performs substring matching, so a "21C5" entry also covers
>> SKUs such as 21C5S05800. Add the 21C5 model to the existing
>> quirk_s2idle_bug table.
>> 
>> Closes: https://bugzilla.kernel.org/show_bug.cgi?id=222070
>> Link: https://bugzilla.kernel.org/show_bug.cgi?id=221273
>> Signed-off-by: Bruno BOI <bruno.boi@xxxxxxxxxxx>
>> ---
>> Changes in v2: resent with the correct sender address; the patch
>> content is unchanged from v1.
>>   drivers/platform/x86/amd/pmc/pmc-quirks.c | 9 +++++++++
>>   1 file changed, 9 insertions(+)
>
> Mark,
>
> Since it uses prefixes rather than a new entry how would you feel about:
>
> DMI_MATCH(DMI_PRODUCT_NAME, "21C"),
>
> On the 21C6 existing entry.

The last char covers a lot of platforms unfortunately

Ignoring the Intel platforms (I assume this driver wouldn't try and load on those - there are a bunch including a Chromebook if that makes any difference)

T14s Gen 3 AMD, X13 Gen 3 AMD, L14 Gen 3 AMD, L15 Gen 3 AMD, T14 Gen 3 AMD, T16 G1 AMD, P16s Gen 1 AMD, K14 AMD would all be impacted.

I probably have a bunch of these to be able to test - but not all (and definitely not the K14).

Adding 21C5 and 21C6 should cover all L14 G3 AMD models.

Mark