[PATCH v2 0/2] pinctrl: apple: Add t8140-pinctrl support

Yureka Lilian yureka at cyberchaos.dev
Wed Sep 30 15:54:38 PDT 2026


On 9/30/26 12:03, Krzysztof Kozlowski wrote:
> On Sat, Sep 26, 2026 at 04:51:44PM +0200, Yureka Lilian wrote:
>> This patch series has fixes for probing the pinctrl_ap GPIO controller
>> on the MacBook Neo. The previous code would crash in the regmap_init on
>> this device, since reading the REG_GPIOx for certain pins causes an
>> SError.
>> To mitigate this, we adapt the gpio-reserved-ranges property to describe
>> pins which are unusable and whose REG_GPIOx should not be accessed.
>>
>> Also add the new t8140 base compatible to the dt-bindings, signifying
>> the different behavior of the t8140 pinctrl_ap device, and make the
>> driver accept it since it now respects the gpio-reserved-ranges property.
>>
>> Signed-off-by: Yureka Lilian <yureka at cyberchaos.dev>
>> ---
>> Changes in v2:
>> - EDITME: describe what is new in this series revision.
>> - EDITME: use bulletpoints and terse descriptions.
> EDITME is here on purpose.
>
> Best regards,
> Krzysztof

Sorry about that, I had to send it twice (this is the first version 
to actually land on the mailing list) and forgot that b4 does the whole 
auto-increment and add these cover letter entries. Will be more careful 
and use --preview-to before *every* send starting from next time.

Thank you for understanding,

- Yureka




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