[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Message-ID: <8ab9535d-5f93-4e98-b2d8-d3f80a9c80fe@kernel.org>
Date: Mon, 17 Jun 2024 14:19:22 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Bastien Curutchet <bastien.curutchet@...tlin.com>,
Peter Rosin <peda@...ntia.se>, 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
On 17/06/2024 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>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Best regards,
Krzysztof
Powered by blists - more mailing lists