linux-kernel - Re: (subset) [PATCH v5 0/9] Introduce configfs-based interface for gpio-aggregator

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Message-ID: <174117687651.61264.9467200851509383581.b4-ty@linaro.org>
Date: Wed,  5 Mar 2025 13:15:42 +0100
From: Bartosz Golaszewski <brgl@...ev.pl>
To: linux-gpio@...r.kernel.org,
	Koichiro Den <koichiro.den@...onical.com>
Cc: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>,
	brgl@...ev.pl,
	geert+renesas@...der.be,
	linus.walleij@...aro.org,
	maciej.borzecki@...onical.com,
	linux-kernel@...r.kernel.org
Subject: Re: (subset) [PATCH v5 0/9] Introduce configfs-based interface for gpio-aggregator

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


On Mon, 24 Feb 2025 23:31:25 +0900, Koichiro Den wrote:
> This patch series introduces a configfs-based interface to gpio-aggregator
> to address limitations in the existing 'new_device' interface.
> 
> The existing 'new_device' interface has several limitations:
> 
>   Issue#1. No way to determine when GPIO aggregator creation is complete.
>   Issue#2. No way to retrieve errors when creating a GPIO aggregator.
>   Issue#3. No way to trace a GPIO line of an aggregator back to its
>            corresponding physical device.
>   Issue#4. The 'new_device' echo does not indicate which virtual
>            gpiochip<N> was created.
>   Issue#5. No way to assign names to GPIO lines exported through an
>            aggregator.
> 
> [...]

I don't see anything wrong with this patch so I queued it for fixes. I
will pull it back into my gpio/for-next branch once it's upstream and
apply the rest of the aggregator changes for v6.15.

[1/9] gpio: aggregator: protect driver attr handlers against module unload
      commit: 12f65d1203507f7db3ba59930fe29a3b8eee9945

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