linux-kernel - Re: [PATCH 2/4] i2c: at91: implement i2c bus recovery

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Date:   Thu, 24 Oct 2019 17:07:26 +0200
From:   Wolfram Sang <wsa@...-dreams.de>
To:     Codrin.Ciubotariu@...rochip.com
Cc:     kamel.bouhara@...tlin.com, linux-arm-kernel@...ts.infradead.org,
        linux-i2c@...r.kernel.org, linux-kernel@...r.kernel.org,
        Nicolas.Ferre@...rochip.com, alexandre.belloni@...tlin.com,
        Ludovic.Desroches@...rochip.com, devicetree@...r.kernel.org,
        thomas.petazzoni@...tlin.com
Subject: Re: [PATCH 2/4] i2c: at91: implement i2c bus recovery


> So at the beginning of a new transfer, we should check if SDA (or SCL?) 
> is low and, if it's true, only then we should try recover the bus.

Yes, this is the proper time to do it. Remember, I2C does not define a
timeout.


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