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

[Yureka Lilian]

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.
- Link to v1: https://patch.msgid.link/20260925-apple-pinctrl-t8140-v1-0-1151bdaf2fff@cyberchaos.dev

To: Sven Peter <sven at kernel.org>
To: Janne Grunau <j at jannau.net>
To: Neal Gompa <neal at gompa.dev>
To: Linus Walleij <linusw at kernel.org>
To: Rob Herring <robh at kernel.org>
To: Krzysztof Kozlowski <krzk+dt at kernel.org>
To: Conor Dooley <conor+dt at kernel.org>
To: Mark Kettenis <kettenis at openbsd.org>
Cc: asahi at lists.linux.dev
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-gpio at vger.kernel.org
Cc: devicetree at vger.kernel.org
Cc: linux-kernel at vger.kernel.org

---
Yureka Lilian (2):
      dt-bindings: pinctrl: apple,pinctrl: Add t8140 compatible
      pinctrl: apple: Add t8140-pinctrl support

 .../devicetree/bindings/pinctrl/apple,pinctrl.yaml  | 12 ++++++++++++
 drivers/pinctrl/pinctrl-apple-gpio.c                | 21 ++++++++++++++++-----
 2 files changed, 28 insertions(+), 5 deletions(-)
---
base-commit: 63fcbd85bbb795805ce1014637de186c647fa59d
change-id: 20260925-apple-pinctrl-t8140-0e22af416f8c

Best regards,
--  
Yureka Lilian <yureka at cyberchaos.dev>