[PATCH RFC 0/3] pinctrl: add ACPI support to pin controller

[Niyas Sait <niyas.sait@xxxxxxxxxx>]

This is a proposal for adding ACPI support to pin controller.

The patch supports following resources introduced in ACPI from v6.2

- PinFunction
- PinConfig
- PinGroupFunction
- PinGroupConfig
- PinGroup

The patch has been tested on NXP I.MX8MP Plus platform with ACPI.

Niyas Sait (3):
  pinctrl: add support for acpi PinGroup resource
  pinconf-generic: add pull up and pull down config with resistance
  pinctrl: add support for acpi pin function and config resources

 drivers/pinctrl/Makefile                |   1 +
 drivers/pinctrl/core.c                  |  19 +-
 drivers/pinctrl/core.h                  |   3 +
 drivers/pinctrl/pinctrl-acpi.c          | 450 ++++++++++++++++++++++++
 drivers/pinctrl/pinctrl-acpi.h          |  50 +++
 include/linux/pinctrl/pinconf-generic.h |   6 +
 include/linux/pinctrl/pinctrl.h         |  15 +
 7 files changed, 540 insertions(+), 4 deletions(-)
 create mode 100644 drivers/pinctrl/pinctrl-acpi.c
 create mode 100644 drivers/pinctrl/pinctrl-acpi.h

-- 
2.25.1