linux-kernel - Re: [PATCH RFC v2 4/5] selftest: gpio: Add wait flag to gpio-mockup-cdev

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Message-ID: <CACRpkdbBAa5piO8BJoxx04spOc22CBJ-zbi82BT9sG54c=csNw@mail.gmail.com>
Date: Mon, 28 Oct 2024 15:36:37 +0100
From: Linus Walleij <linus.walleij@...aro.org>
To: Nícolas F. R. A. Prado <nfraprado@...labora.com>, 
	Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Cc: Sean Wang <sean.wang@...nel.org>, Matthias Brugger <matthias.bgg@...il.com>, 
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>, 
	Bamvor Jian Zhang <bamv2005@...il.com>, Shuah Khan <shuah@...nel.org>, kernel@...labora.com, 
	linux-mediatek@...ts.infradead.org, linux-gpio@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, 
	linux-kselftest@...r.kernel.org, kernelci@...ts.linux.dev
Subject: Re: [PATCH RFC v2 4/5] selftest: gpio: Add wait flag to gpio-mockup-cdev

On Fri, Oct 25, 2024 at 9:46 PM Nícolas F. R. A. Prado
<nfraprado@...labora.com> wrote:


> Add a -w flag to the gpio-mockup-cdev utility that causes the program to
> wait until a signal is received before exiting, even when its behavior
> is to retrieve the GPIO value of the line. This allows using this
> utility to keep a GPIO line configured even when in input mode, which
> will be relied on in other tests.
>
> Signed-off-by: Nícolas F. R. A. Prado <nfraprado@...labora.com>

Bartosz has to look at this patch!

But overall the idea looks sound to me.

Yours,
Linus Walleij