linux-kernel - Re: [RFC 2/5] i3c: Add core I3C infrastructure

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Date:   Wed, 2 Aug 2017 12:21:38 +0200
From:   Wolfram Sang <wsa@...-dreams.de>
To:     Boris Brezillon <boris.brezillon@...e-electrons.com>
Cc:     "Andrew F. Davis" <afd@...com>, Arnd Bergmann <arnd@...db.de>,
        linux-i2c@...r.kernel.org, Jonathan Corbet <corbet@....net>,
        linux-doc@...r.kernel.org,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        Przemyslaw Sroka <psroka@...ence.com>,
        Arkadiusz Golec <agolec@...ence.com>,
        Alan Douglas <adouglas@...ence.com>,
        Bartosz Folta <bfolta@...ence.com>,
        Damian Kos <dkos@...ence.com>,
        Alicja Jurasik-Urbaniak <alicja@...ence.com>,
        Jan Kotas <jank@...ence.com>,
        Cyprian Wronka <cwronka@...ence.com>,
        Alexandre Belloni <alexandre.belloni@...e-electrons.com>,
        Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>,
        Nishanth Menon <nm@...com>, Rob Herring <robh+dt@...nel.org>,
        Pawel Moll <pawel.moll@....com>,
        Mark Rutland <mark.rutland@....com>,
        Ian Campbell <ijc+devicetree@...lion.org.uk>,
        Kumar Gala <galak@...eaurora.org>, devicetree@...r.kernel.org,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: Re: [RFC 2/5] i3c: Add core I3C infrastructure


> > Yes, my wording was a bit too strong. It is possible, sure. Yet, I
> > understood that one of the features of I3C is to have in-band interrupt
> > support. We will see if the demand for backward compatibility or "saving
> > pins" is higher.
> > 
> 
> Indeed, you can use in-band interrupts if your device is able to
> generate them, but that doesn't prevent I3C device designers from using
> an external pin to signal interrupts if they prefer.

Exactly. Thus, "We will see if the demand for backward compatibility or "saving
pins" is higher" :)


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