[PATCH v2 0/9] gpio: add proper gpiod API

[Sascha Hauer]

On Thu, Jun 22, 2023 at 09:23:20AM +0200, Ahmad Fatoum wrote:
> 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.

Applied, thanks

Sascha

> 
> v1 -> v2:
>   - drop unrelated help command patch
>   - drop gpio-mux patch for separate sending out
>   - rebase onto next
>   - fix and add stubs for !CONFIG_GPIOLIB
>   - rename internal gpioinfo_ functions to gpiodesc_
> 
> v1 was here:
> https://lore.barebox.org/barebox/20230621092700.GE18491@pengutronix.de/T/#t
> 
> Ahmad Fatoum (9):
>   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}
>   gpiolib: factor out finding gpio property
>   gpiolib: add support for requesting and setting gpiod arrays
>   gpiolib: rename gpioinfo_ to gpiodesc_
> 
>  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             |   6 +-
>  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            | 224 ++++++++++
>  include/linux/mtd/rawnand.h              |   4 +-
>  include/linux/printk.h                   |   3 +
>  include/video/mipi_dbi.h                 |   7 +-
>  lib/bitmap.c                             | 103 +++++
>  31 files changed, 1019 insertions(+), 389 deletions(-)
>  create mode 100644 include/linux/gpio/consumer.h
> 
> -- 
> 2.39.2
> 
> 
> 

-- 
Pengutronix e.K.                           |                             |
Steuerwalder Str. 21                       | http://www.pengutronix.de/  |
31137 Hildesheim, Germany                  | Phone: +49-5121-206917-0    |
Amtsgericht Hildesheim, HRA 2686           | Fax:   +49-5121-206917-5555 |