[PATCH 1/5] pmdomain: mediatek: Fix power domain count

[AngeloGioacchino Del Regno]

Il 12/02/26 12:34, Ulf Hansson ha scritto:
> On Tue, 10 Feb 2026 at 06:40, Adam Ford <aford173 at gmail.com> wrote:
>>
>> The wrong value of the number of domains is wrong which leads to
>> failures when trying to enumerate nested power domains.
>>
>>   PM: genpd_xlate_onecell: invalid domain index 0
>>   PM: genpd_xlate_onecell: invalid domain index 1
>>   PM: genpd_xlate_onecell: invalid domain index 3
>>   PM: genpd_xlate_onecell: invalid domain index 4
>>   PM: genpd_xlate_onecell: invalid domain index 5
>>   PM: genpd_xlate_onecell: invalid domain index 13
>>   PM: genpd_xlate_onecell: invalid domain index 14
>>
>> Attempts to use these power domains fail, so fix this by
>> using the correct value of calculated power domains.
>>
>> Signed-off-by: Adam Ford <aford173 at gmail.com>
> 
> We should have a fixes tag for this too I think:
> 
> Fixes: 88914db077b6 ("pmdomain: mediatek: Add support for Hardware
> Voter power domains")
> 
> 
>> ---
>>   drivers/pmdomain/mediatek/mtk-pm-domains.c | 2 +-
>>   1 file changed, 1 insertion(+), 1 deletion(-)
>>
>> diff --git a/drivers/pmdomain/mediatek/mtk-pm-domains.c b/drivers/pmdomain/mediatek/mtk-pm-domains.c
>> index 58648f4f689b..d2b8d0332951 100644
>> --- a/drivers/pmdomain/mediatek/mtk-pm-domains.c
>> +++ b/drivers/pmdomain/mediatek/mtk-pm-domains.c
>> @@ -1228,7 +1228,7 @@ static int scpsys_probe(struct platform_device *pdev)
>>          scpsys->soc_data = soc;
>>
>>          scpsys->pd_data.domains = scpsys->domains;
>> -       scpsys->pd_data.num_domains = soc->num_domains;
>> +       scpsys->pd_data.num_domains = num_domains;
> 
> Not sure this is the complete fix, as scpsys_add_one_domain() seems to
> be using the wrong value of "num_domains" too, no?
> 

No, scpsys_add_one_domain() uses num_domains from the soc_data for DIRECT_CTL,
which is expected. Maybe that can be improved, but it's how it is supposed to work.

So yeah, this patch is resolving an issue, and it is a complete fix.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno at collabora.com>

>>
>>          parent = dev->parent;
>>          if (!parent) {
>> --
>> 2.51.0
>>
> 
> Kind regards
> Uffe