linux-kernel - Re: [PATCH v3 1/3] dt-bindings: i2c: gpio: Add 'settle-time-us' property

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: <c4b7f1ad-6daf-0728-016f-f57ec01e0da1@axentia.se>
Date: Wed, 10 Jul 2024 10:01:27 +0200
From: Peter Rosin <peda@...ntia.se>
To: Bastien Curutchet <bastien.curutchet@...tlin.com>,
 Andi Shyti <andi.shyti@...nel.org>, Rob Herring <robh@...nel.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley
 <conor+dt@...nel.org>, Peter Korsgaard <peter.korsgaard@...co.com>,
 Wolfram Sang <wsa@...nel.org>
Cc: linux-i2c@...r.kernel.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, Thomas Petazzoni
 <thomas.petazzoni@...tlin.com>, Herve Codina <herve.codina@...tlin.com>,
 Christopher Cordahi <christophercordahi@...ometrics.ca>
Subject: Re: [PATCH v3 1/3] dt-bindings: i2c: gpio: Add 'settle-time-us'
 property

2024-06-17 at 14:08, Bastien Curutchet wrote:
> I2C MUXes described by the i2c-gpio-mux sometimes need a significant
> amount of time to switch from a bus to another. When a new bus is
> selected, the first I2C transfer can fail if it occurs too early. There
> is no way to describe this transition delay that has to be waited before
> starting the first I2C transfer.
> 
> Add a 'settle-time-us' property that indicates the delay to be
> respected before doing the first i2c transfer.
> 
> Signed-off-by: Bastien Curutchet <bastien.curutchet@...tlin.com>

Acked-by: Peter Rosin <peda@...ntia.se>

Cheers,
Peter