Handling of shared GPIOs in the kernel needs some improvements. Let's
start with a simple change of not comparing GPIO descriptor pointers
directly as there's nothing that guarantees that the same physical pin
will always be represented by a single GPIO descriptor obtained by
calling gpiod_get().

For merging: I suggest to take patch 1/2 through the GPIO tree and
provide an immutable tag for the regulator tree.

Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
---
Bartosz Golaszewski (2):
      gpio: provide gpiod_is_equal()
      regulator: don't compare raw GPIO descriptor pointers

 drivers/gpio/gpiolib.c        | 14 ++++++++++++++
 drivers/regulator/core.c      |  2 +-
 include/linux/gpio/consumer.h |  9 +++++++++
 3 files changed, 24 insertions(+), 1 deletion(-)
---
base-commit: 0af2f6be1b4281385b618cb86ad946eded089ac8
change-id: 20250402-gpiod-is-equal-4e28bb8ab842

Best regards,
-- 
Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

On Mon, Apr 07, 2025 at 09:08:13AM +0200, Bartosz Golaszewski wrote:

> For merging: I suggest to take patch 1/2 through the GPIO tree and
> provide an immutable tag for the regulator tree.

Sounds good to me.

On Mon, 07 Apr 2025 09:08:13 +0200, Bartosz Golaszewski wrote:
> Handling of shared GPIOs in the kernel needs some improvements. Let's
> start with a simple change of not comparing GPIO descriptor pointers
> directly as there's nothing that guarantees that the same physical pin
> will always be represented by a single GPIO descriptor obtained by
> calling gpiod_get().
> 
> For merging: I suggest to take patch 1/2 through the GPIO tree and
> provide an immutable tag for the regulator tree.
> 
> [...]

Applied to

   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator.git for-next

Thanks!

[2/2] regulator: don't compare raw GPIO descriptor pointers
      commit: aaf6223ea2a1ff9316a81bf851fd5a0e82635b60

All being well this means that it will be integrated into the linux-next
tree (usually sometime in the next 24 hours) and sent to Linus during
the next merge window (or sooner if it is a bug fix), however if
problems are discovered then the patch may be dropped or reverted.

You may get further e-mails resulting from automated or manual testing
and review of the tree, please engage with people reporting problems and
send followup patches addressing any issues that are reported if needed.

If any updates are required or you are submitting further changes they
should be sent as incremental updates against current git, existing
patches will not be replaced.

Please add any relevant lists and maintainers to the CCs when replying
to this mail.

Thanks,
Mark

From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>


On Mon, 07 Apr 2025 09:08:13 +0200, Bartosz Golaszewski wrote:
> Handling of shared GPIOs in the kernel needs some improvements. Let's
> start with a simple change of not comparing GPIO descriptor pointers
> directly as there's nothing that guarantees that the same physical pin
> will always be represented by a single GPIO descriptor obtained by
> calling gpiod_get().
> 
> For merging: I suggest to take patch 1/2 through the GPIO tree and
> provide an immutable tag for the regulator tree.
> 
> [...]

Applied, thanks!

[1/2] gpio: provide gpiod_is_equal()
      https://git.kernel.org/brgl/linux/c/265daffe788aa1cc5925d0afcde4fe6e99c66638

Best regards,
-- 
Bartosz Golaszewski <bartosz.golaszewski@linaro.org>