linux-kernel - Re: [PATCH] i2c: muxes: pca954x: Fix broken reset-gpio usage

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] [day] [month] [year] [list]

Message-ID: <aQjg7uQyXMCSULy2@shikoro>
Date: Mon, 3 Nov 2025 18:05:50 +0100
From: Wolfram Sang <wsa+renesas@...g-engineering.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Cc: Peter Rosin <peda@...ntia.se>, Philipp Zabel <p.zabel@...gutronix.de>,
	Wojciech Siudy <wojciech.siudy@...ia.com>,
	linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] i2c: muxes: pca954x: Fix broken reset-gpio usage

On Mon, Nov 03, 2025 at 04:19:06PM +0100, Krzysztof Kozlowski wrote:
> Revert commit 690de2902dca ("i2c: muxes: pca954x: Use reset controller
> only") and its dependent commit 94c296776403 ("i2c: muxes: pca954x:
> Reset if (de)select fails") because the first breaks all users of the
> driver, by requiring a completely optional reset-gpio driver.  These
> commits cause that mux driver simply stops working when optional
> reset-gpio is not included, but that reset-gpio is not pulled anyhow.
> 
> Driver cannot remove legacy reset-gpios handling.
> 
> Fixes: 690de2902dca ("i2c: muxes: pca954x: Use reset controller only")
> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Applied to for-current, thanks!


Download attachment "signature.asc" of type "application/pgp-signature" (834 bytes)