[PATCH v4 0/9] pinctrl: add support of Airoha SoCs

[Mikhail Kshevetskiy]

This patch series add pin controller and gpio driver support for EN7523/
AN7581/AN7583 SoCs. The driver based on official linux airoha pinctrl and
gpio driver with Matheus Sampaio Queiroga changes.

The original Matheus Sampaio Queiroga driver can be taken from the repo:
  https://sirherobrine23.com.br/airoha_an7523/kernel/commits/branch/airoha_an7523_pinctrl

Additionally in the EN7523 case the patches removes existing gpio dts nodes
and replaces them with pinctrl node. It should not be very dangerous, because:
 * No official EN7523 gpio support present in U-Boot
 * Legacy Linux EN7523 GPIO driver is mostly abandoned
 * The same driver is planned for upstream linux/openwrt

The patches were tested on EN7523/AN7581/AN7583 boards.
---
Changes v2:
 * pinctrl driver was split on common and per SoC parts
 * EN7523 SoC support was added
 * EN7523/AN7581 defconfigs were updated to activate
   pinctrl/gpio support
 * Board/SoC independent pinconf/pinctrl definitions
   were moved to global includes

Changes v3:
 * add non-constant field_{prep,get}() helpers
 * put airoha common code to a separate patch
 * put en7523 dts change to a separate patch
 * add support of "pinmux status" command
 * address a lot of comments from David Lechner

Changes v4:
 * minor refactoring
 * fix gpio initialization, so gpio driver becomes probed

---
Geert Uytterhoeven (1):
  bitfield: Add non-constant field_{prep,get}() helpers

Mikhail Kshevetskiy (8):
  pinctrl: add more pinconf/pinctrl definitions
  pinctrl: airoha: add shared pinctrl code
  pinctrl: airoha: add pin controller and gpio driver for AN7581 SoC
  pinctrl: airoha: add pin controller and gpio driver for AN7583 SoC
  pinctrl: airoha: add pin controller and gpio driver for EN7523 SoC
  configs: airoha: an7581: enable pinctrl/gpio support
  configs: airoha: en7523: enable pinctrl/gpio support
  arm: dts: en7523: add pinctrl/gpio support, drop legacy gpio support

 arch/arm/dts/en7523-u-boot.dtsi         |   21 +
 configs/an7581_evb_defconfig            |    7 +-
 configs/en7523_evb_defconfig            |    3 +-
 drivers/pinctrl/Kconfig                 |    1 +
 drivers/pinctrl/Makefile                |    1 +
 drivers/pinctrl/airoha/Kconfig          |   26 +
 drivers/pinctrl/airoha/Makefile         |    7 +
 drivers/pinctrl/airoha/airoha-common.h  |  512 +++++++++++
 drivers/pinctrl/airoha/pinctrl-airoha.c |  843 ++++++++++++++++++
 drivers/pinctrl/airoha/pinctrl-an7581.c | 1074 +++++++++++++++++++++++
 drivers/pinctrl/airoha/pinctrl-an7583.c |  976 ++++++++++++++++++++
 drivers/pinctrl/airoha/pinctrl-en7523.c |  648 ++++++++++++++
 include/dm/pinctrl.h                    |   28 +
 include/linux/bitfield.h                |   59 ++
 include/linux/pinctrl/pinctrl.h         |   74 ++
 15 files changed, 4273 insertions(+), 7 deletions(-)
 create mode 100644 drivers/pinctrl/airoha/Kconfig
 create mode 100644 drivers/pinctrl/airoha/Makefile
 create mode 100644 drivers/pinctrl/airoha/airoha-common.h
 create mode 100644 drivers/pinctrl/airoha/pinctrl-airoha.c
 create mode 100644 drivers/pinctrl/airoha/pinctrl-an7581.c
 create mode 100644 drivers/pinctrl/airoha/pinctrl-an7583.c
 create mode 100644 drivers/pinctrl/airoha/pinctrl-en7523.c
 create mode 100644 include/linux/pinctrl/pinctrl.h

-- 
2.53.0