linux-kernel - Re: [PATCH v1 00/12] Improvements for Tegra I2C driver

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Message-ID: <04aae642-80f9-d22e-1d80-bb206bb27a8b@gmail.com>
Date:   Thu, 3 Sep 2020 04:12:13 +0300
From:   Dmitry Osipenko <digetx@...il.com>
To:     Michał Mirosław <mirq-linux@...e.qmqm.pl>
Cc:     Thierry Reding <thierry.reding@...il.com>,
        Jonathan Hunter <jonathanh@...dia.com>,
        Laxman Dewangan <ldewangan@...dia.com>,
        Wolfram Sang <wsa@...-dreams.de>, linux-i2c@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 00/12] Improvements for Tegra I2C driver

03.09.2020 00:20, Michał Mirosław пишет:
> BTW, I wonder if you could expose i2c_in_atomic_xfer_mode() and use it
> to differentiate atomic_xfer from normal and get rid of the internal
> flag and .master_xfer_atomic callback.

The atomic transfer uses 90% of the code path that a non-atomic transfer
uses. I don't see how it could be exposed without duplicated lots of the
code, unless I'm not missing what you're suggesting.