linux-kernel - Re: [PATCH v1] gpio: pca953x: handle short interrupt pulses on PCAL devices

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Message-ID: <vcpab5tjv7k3i4bm4bcugzde4rat5gmoq4yafqipn5xuual4jo@fkkxnnl5776i>
Date: Wed, 7 Jan 2026 10:39:23 +0100
From: Ernest Van Hoecke <ernestvanhoecke@...il.com>
To: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc: Linus Walleij <linusw@...nel.org>, Bartosz Golaszewski <brgl@...ev.pl>, 
	Mark Tomlinson <mark.tomlinson@...iedtelesis.co.nz>, Ernest Van Hoecke <ernest.vanhoecke@...adex.com>, 
	Emanuele Ghidoli <emanuele.ghidoli@...adex.com>, Francesco Dolcini <francesco.dolcini@...adex.com>, 
	lakabd <lakabd.work@...il.com>, Yong Li <yong.b.li@...el.com>, linux-gpio@...r.kernel.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1] gpio: pca953x: handle short interrupt pulses on PCAL
 devices

On Sun, Dec 28, 2025 at 08:25:12PM +0200, Andy Shevchenko wrote:
> 
> Wow, this is a very good wrap-up of the interrupt behaviour on those chips.
> While I am fully with you on the fix (this patch), can you also add a
> chapter/section about this to the documentation file (now we have it for these
> chips!) Documentation/driver-api/gpio/pca953x.rst?
> 
> (As a separate patch.)
> 
> -- 
> With Best Regards,
> Andy Shevchenko
> 
Thanks for the review Andy, I'm very glad to read that the wrap-up
proved useful. I submitted a separate patch here:
https://lore.kernel.org/all/20260107093125.4053468-1-ernestvanhoecke@gmail.com/

Kind regards,
Ernest