linux-kernel - Re: [PATCH v1 0/2 RESEND] i2c: muxes: Add GPIO-detected hotplug I2C

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <w3bn5bqxqjhf4uvxov47rwlvmnbic6xnlk25xbpnbmi2eyup7q@tjuiu7pl3mmo>
Date: Thu, 16 Oct 2025 00:50:47 +0200
From: Andi Shyti <andi.shyti@...nel.org>
To: Svyatoslav Ryhel <clamor95@...il.com>
Cc: Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Peter Rosin <peda@...ntia.se>, Michał Mirosław <mirq-linux@...e.qmqm.pl>, 
	Jonas Schwöbel <jonasschwoebel@...oo.de>, linux-i2c@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, Luca Ceresoli <luca@...aceresoli.net>, 
	Herve Codina <herve.codina@...tlin.com>
Subject: Re: [PATCH v1 0/2 RESEND] i2c: muxes: Add GPIO-detected hotplug I2C

Hi,

On Mon, Oct 13, 2025 at 09:00:15AM +0300, Svyatoslav Ryhel wrote:
> Implement driver for hot-plugged I2C busses, where some devices on
> a bus are hot-pluggable and their presence is indicated by GPIO line.
> This feature is used by the ASUS Transformers family, by the  Microsoft
> Surface RT/2 and maybe more.
> 
> ASUS Transformers expose i2c line via proprietary 40 pin plug and wire
> that line through optional dock accessory. Devices in the dock are
> connected to this i2c line and docks presence is detected by a dedicted
> GPIO.

This is a resend of the previous series. I want to understand
whether this effort can align with what Herve and Luca are
working on. I have not looked into the implementation details
yet, but I want to avoid overlapping or conflicting patches.

Thanks,
Andi