linux-kernel - Re: [PATCH v6 1/5] irqchip/aspeed-i2c-ic: binding docs for Aspeed I2C Interrupt Controller

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Message-ID: <CAFd5g47Pij6TxkmS6akWoAL0FZ2WLh+FWUrr099RiabWn+pneQ@mail.gmail.com>
Date:   Wed, 29 Mar 2017 03:34:02 -0700
From:   Brendan Higgins <brendanhiggins@...gle.com>
To:     Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:     Wolfram Sang <wsa@...-dreams.de>, robh+dt@...nel.org,
        mark.rutland@....com, tglx@...utronix.de, jason@...edaemon.net,
        Marc Zyngier <marc.zyngier@....com>,
        Joel Stanley <joel@....id.au>,
        Vladimir Zapolskiy <vz@...ia.com>,
        Kachalov Anton <mouse@...c.ru>,
        Cédric Le Goater <clg@...d.org>,
        linux-i2c@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        OpenBMC Maillist <openbmc@...ts.ozlabs.org>
Subject: Re: [PATCH v6 1/5] irqchip/aspeed-i2c-ic: binding docs for Aspeed I2C
 Interrupt Controller

I think I addressed this on the other email with the actual driver.
Anyway, I thought that this is pretty much the dummy irqchip code is
for; I have seen some other drivers do the same thing. It is true that
this is a really basic "interrupt controller;" it cannot mask on its
own, etc; nevertheless, I think you will pretty much end up with the
same code for an "I2C controller;" it just won't use an irq_domain.