linux-kernel - Re: [PATCH v3 0/4] mux: gpio-mux: add enable GPIO support and ADG2404

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Message-ID: <ace6ef5e-d636-4886-8f8b-c318a81522aa@kernel.org>
Date: Fri, 16 Jan 2026 11:31:58 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: "Miclaus, Antoniu" <Antoniu.Miclaus@...log.com>,
 Johan Hovold <johan@...nel.org>
Cc: Peter Rosin <peda@...ntia.se>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Srinivas Kandagatla <srini@...nel.org>,
 Johan Hovold <johan+linaro@...nel.org>, David Lechner
 <dlechner@...libre.com>,
 "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
 "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v3 0/4] mux: gpio-mux: add enable GPIO support and ADG2404

On 16/01/2026 10:39, Miclaus, Antoniu wrote:
>> -----Original Message-----
>> From: Johan Hovold <johan@...nel.org>
>> Sent: Friday, January 16, 2026 11:01 AM
>> To: Krzysztof Kozlowski <krzk@...nel.org>
>> Cc: Miclaus, Antoniu <Antoniu.Miclaus@...log.com>; Peter Rosin
>> <peda@...ntia.se>; Rob Herring <robh@...nel.org>; Krzysztof Kozlowski
>> <krzk+dt@...nel.org>; Conor Dooley <conor+dt@...nel.org>; Srinivas
>> Kandagatla <srini@...nel.org>; Johan Hovold <johan+linaro@...nel.org>;
>> David Lechner <dlechner@...libre.com>; devicetree@...r.kernel.org; linux-
>> kernel@...r.kernel.org
>> Subject: Re: [PATCH v3 0/4] mux: gpio-mux: add enable GPIO support and
>> ADG2404
>>
>> [External]
>>
>> On Fri, Jan 16, 2026 at 09:37:36AM +0100, Krzysztof Kozlowski wrote:
>>> On Thu, Jan 15, 2026 at 02:18:18PM +0200, Antoniu Miclaus wrote:
>>>> This series extends the gpio-mux driver with optional enable GPIO support
>>>> to prevent glitches during channel transitions, then adds support for the
>>>> Analog Devices ADG2404 multiplexer as the first user of this feature.
>>>>
>>>> The enable GPIO allows the multiplexer to be disabled before changing
>>>> address lines and re-enabled after, preventing brief activation of
>>>> unintended channels during transitions. This is particularly important
>>>> for precision analog applications.
>>>>
>>>> The ADG2404 is a 4:1 analog multiplexer with low 0.62Ω on-resistance
>>>> that requires this enable GPIO functionality for glitch-free operation.
>>>>
>>>> Changes in v3:
>>>>  * Extend gpio-mux driver instead of creating standalone adg2404 driver
>>>>  * Make enable GPIO optional for backward compatibility
>>>>  * Add MUX_IDLE_DISCONNECT support via enable GPIO
>>>
>>> You are developing on some old kernel. You got stale Cc list of at least
>>> three people! How could you for example get "johan+linaro@...nel.org" -
>>> from which maintainer entry - but that at least is not bouncing like two
>>> others.
>>
>> Probably from using get_maintainer.pl --git:
>>
>> 	$ scripts/get_maintainer.pl --git drivers/mux/gpio.c
>> 	Peter Rosin <peda@...ntia.se> (maintainer:MULTIPLEXER
>> SUBSYSTEM)
>> 	Srinivas Kandagatla <srini@...nel.org>
>> (commit_signer:1/2=50%,authored:1/2=50%,added_lines:5/6=83%)
>> 	Krzysztof Kozlowski <krzk@...nel.org> (commit_signer:1/2=50%)
>> 	Bartosz Golaszewski <brgl@...nel.org> (commit_signer:1/2=50%)
>> 	David Lechner <dlechner@...libre.com>
>> (commit_signer:1/2=50%,authored:1/2=50%,added_lines:1/6=17%,removed
>> _lines:3/3=100%)
>> 	Johan Hovold <johan+linaro@...nel.org> (commit_signer:1/2=50%)
>> 	linux-kernel@...r.kernel.org (open list)
>> 	MULTIPLEXER SUBSYSTEM status: Odd Fixes
>>
>> A recent mailmap is indeed needed to remap Bartosz's old address,
>> though.
>>
>  
> Yes, I've used "--to-cmd='./scripts/get_maintainer.pl --norolestats" when sending the patches.

Then how did you get non-working Bartosz and Linus' emails?


Best regards,
Krzysztof