Re: [PATCH v2 0/5] rsk7203: switch to using static device property, drop legacy gpio API

[Dmitry Torokhov <dmitry.torokhov@gmail.com>]

On Wed, May 20, 2026 at 10:13:16PM -0700, Dmitry Torokhov wrote:
> This series of patches converts rsk7203 to use static device properties
> for its devices, including gpio-keys and gpio-leds, and removing
> dependency on legacy gpio API (in favor of gpiod API).
> 
> To configure pin functions the board is switched to use gpio-hogs, as
> doing full conversion to pinmux is too challenging without access to
> hardware.
> 
> v2:
> - Added a patch to isolate the function gpiochip from the parent fwnode
>   to prevent ambiguous property lookups
> - Added a patch attaching a software node to the main PFC gpiochip device
> - Adjusted the board setup to use the PFC's software node for LEDs and
>   GPIO keys instead of creating a standalone node
> - Added support to sh-pfc for configuring the secondary "function"
>   gpiochip via a "functions" child software node.
> - Converted board pin configuration from legacy gpio_request() to GPIO
>   hogs, using postcore_initcall to ensure nodes are available during
>   driver probe.
> 
> v1:
> 
> http://lore.kernel.org/r/jwtdoptatzfo47mbpmmjwhhhjn4mbw6ekp4gtoopca7azbcelo@uvtz4w2ga5qn
> 
> Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>

Gentle ping on this series... It still applies cleanly and we need this
to be able top drop legacy gpio interfaces from gpio-keys (and
eventually from the kernel).

> ---
> Dmitry Torokhov (5):
>       pinctrl: renesas: gpio: isolate function gpiochip from parent fwnode
>       sh: pfc: attach software node to the GPIO chip
>       sh: mach-rsk: rsk7203: use static device properties for LEDs and GPIO buttons
>       pinctrl: renesas: gpio: support software nodes for function GPIOs
>       sh: mach-rsk: rsk7203: convert pin configuration to using software nodes
> 
>  arch/sh/boards/mach-rsk/devices-rsk7203.c | 282 ++++++++++++++++++++++--------
>  arch/sh/include/cpu-common/cpu/pfc.h      |   3 +
>  arch/sh/kernel/cpu/pfc.c                  |  20 ++-
>  drivers/pinctrl/renesas/gpio.c            |  28 +++
>  4 files changed, 254 insertions(+), 79 deletions(-)
> ---
> base-commit: 6a50ba100ace43f43c87384367eb2d2605fcc16c
> change-id: 20260310-rsk7203-properties-82bf2c12b985
> 
> Thanks.
> 

-- 
Dmitry