[PATCH 00/10] gpio: add proper gpiod API and gpio-mux support

[Ahmad Fatoum]

The gpiod_ (GPIO descriptor) API used with Linux differs from barebox'
normal GPIO API:

 - gpiod handles are opaque pointers and not an integer, which users
   have an expectation of stability for

 - gpiod API uses logic levels by default with separate raw API for
   physical level instead of physical level by default and separate
   API taking active level into account.

The barebox gpiod_ API mimics the latter point, but still uses integers
requiring ugly and arguably error prone conversions when porting kernel
code.

This series fixes that by adding proper struct gpio_desc API like in
Linux and then builds upon that to port the kernel gpio-mux driver.

Ahmad Fatoum (10):
  driver: include dev_print and family from <driver.h>
  include: linux/printk: define new dev_errp_probe
  gpio: have gpiod_ functions return and accept pointers
  gpio: gpiolib: rename struct gpio_info to gpio_desc
  gpiolib: export proper gpio descriptor API
  bitmap: implement bitmap_{to,from}_arr{32,64}
  commands: help: ignore options after first regular argument
  gpiolib: factor out finding gpio property
  gpiolib: add support for requesting and setting gpiod arrays
  drivers: port Linux mux framework and gpio-mux driver

 commands/help.c                          |  19 +-
 drivers/Kconfig                          |   1 +
 drivers/Makefile                         |   1 +
 drivers/gpio/gpio-pca953x.c              |   9 +-
 drivers/gpio/gpiolib.c                   | 528 +++++++++++++++++------
 drivers/mci/mci_spi.c                    |  13 +-
 drivers/mtd/nand/atmel/nand-controller.c |  40 +-
 drivers/mtd/nand/nand_base.c             |   4 +-
 drivers/mux/Kconfig                      |  29 ++
 drivers/mux/Makefile                     |  10 +
 drivers/mux/core.c                       | 472 ++++++++++++++++++++
 drivers/mux/gpio.c                       | 103 +++++
 drivers/net/designware_eqos.c            |  26 +-
 drivers/net/ksz8873.c                    |  13 +-
 drivers/net/ksz9477.c                    |  13 +-
 drivers/net/realtek-dsa/realtek-mdio.c   |  10 +-
 drivers/net/realtek-dsa/realtek-smi.c    |  18 +-
 drivers/net/realtek-dsa/realtek.h        |   6 +-
 drivers/net/sja1105.c                    |  25 +-
 drivers/nvmem/starfive-otp.c             |  12 +-
 drivers/pci/pcie-dw-rockchip.c           |  14 +-
 drivers/power/reset/gpio-poweroff.c      |  14 +-
 drivers/power/reset/gpio-restart.c       |  23 +-
 drivers/regulator/fixed.c                |  27 +-
 drivers/sound/gpio-beeper.c              |  14 +-
 drivers/usb/misc/onboard_usb_hub.c       |  11 +-
 drivers/video/mipi_dbi.c                 |   8 +-
 drivers/video/panel-ilitek-ili9341.c     |  17 +-
 drivers/video/panel-mipi-dbi.c           |  17 +-
 drivers/watchdog/gpio_wdt.c              |  22 +-
 include/driver.h                         |   1 +
 include/gpiod.h                          |  79 +---
 include/linux/bitmap.h                   | 101 +++++
 include/linux/gpio/consumer.h            | 137 ++++++
 include/linux/mtd/rawnand.h              |   4 +-
 include/linux/printk.h                   |   3 +
 include/video/mipi_dbi.h                 |   7 +-
 lib/bitmap.c                             | 103 +++++
 38 files changed, 1559 insertions(+), 395 deletions(-)
 create mode 100644 drivers/mux/Kconfig
 create mode 100644 drivers/mux/Makefile
 create mode 100644 drivers/mux/core.c
 create mode 100644 drivers/mux/gpio.c
 create mode 100644 include/linux/gpio/consumer.h

-- 
2.39.2