linux-kernel - Re: [PATCH V1] i2c: tegra: disable irq in tegra_i2c_xfer

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Date:   Tue, 18 Jun 2019 01:53:21 -0700
From:   Bitan Biswas <bbiswas@...dia.com>
To:     Jon Hunter <jonathanh@...dia.com>,
        Laxman Dewangan <ldewangan@...dia.com>,
        Thierry Reding <treding@...dia.com>,
        <linux-i2c@...r.kernel.org>, <linux-tegra@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, Peter Rosin <peda@...ntia.se>,
        Wolfram Sang <wsa@...-dreams.de>,
        Dmitry Osipenko <digetx@...il.com>
CC:     Shardar Mohammed <smohammed@...dia.com>,
        Sowjanya Komatineni <skomatineni@...dia.com>,
        Mantravadi Karthik <mkarthik@...dia.com>
Subject: Re: [PATCH V1] i2c: tegra: disable irq in tegra_i2c_xfer_msg



On 6/17/19 11:32 PM, Jon Hunter wrote:
> 
> On 18/06/2019 06:23, Bitan Biswas wrote:
>> Synchronize ISR and tegra_i2c_xfer_msg execution
>> by disabling interrupt. This avoids spinlock usage
>> for same purpose.
> 
> I think that you need to explain the motivation/benefit of this. It is
> not immediately clear to me. Sorry if I have missed some previous
> discussion.
I updated the commit description with details and benefit. Please review 
Patch V2.

-regards,
  Bitan