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From:   Geert Uytterhoeven <geert@linux-m68k.org>
Date:   Mon, 26 Mar 2018 12:12:54 +0200
Message-ID: <CAMuHMdX3TLmaN14gM4fTgzXwy1dgsMxCFBs_3wCFWM8rX=+8vA@mail.gmail.com>
Subject: Re: [PATCH v3 11/11] dt-bindings: gpio: Add bindings for Cadence I3C
 gpio expander
To:     Boris Brezillon <boris.brezillon@bootlin.com>
Cc:     Wolfram Sang <wsa@the-dreams.de>,
        Linux I2C <linux-i2c@vger.kernel.org>,
        Jonathan Corbet <corbet@lwn.net>, linux-doc@vger.kernel.org,
        Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
        Arnd Bergmann <arnd@arndb.de>,
        Przemyslaw Sroka <psroka@cadence.com>,
        Arkadiusz Golec <agolec@cadence.com>,
        Alan Douglas <adouglas@cadence.com>,
        Bartosz Folta <bfolta@cadence.com>,
        Damian Kos <dkos@cadence.com>,
        Alicja Jurasik-Urbaniak <alicja@cadence.com>,
        Cyprian Wronka <cwronka@cadence.com>,
        Suresh Punnoose <sureshp@cadence.com>,
        Rafal Ciepiela <rafalc@cadence.com>,
        Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,
        Nishanth Menon <nm@ti.com>, Rob Herring <robh+dt@kernel.org>,
        Pawel Moll <pawel.moll@arm.com>,
        Mark Rutland <mark.rutland@arm.com>,
        Ian Campbell <ijc+devicetree@hellion.org.uk>,
        Kumar Gala <galak@codeaurora.org>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@vger.kernel.org>,
        Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
        Vitor Soares <Vitor.Soares@synopsys.com>,
        Linus Walleij <linus.walleij@linaro.org>,
        Xiang Lin <Xiang.Lin@synaptics.com>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@vger.kernel.org>
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Hi Boris,

On Fri, Mar 23, 2018 at 12:00 PM, Boris Brezillon
<boris.brezillon@bootlin.com> wrote:
> Document the Cadence I3C gpio expander bindings.
>
> Signed-off-by: Boris Brezillon <boris.brezillon@bootlin.com>

Thanks for your patch!

> --- /dev/null
> +++ b/Documentation/devicetree/bindings/gpio/gpio-cdns-i3c.txt

> +- #interrupt-cells : Should be 2.  The first cell is the GPIO number.
> +  The second cell bits[3:0] is used to specify trigger type and level flags:
> +      1 = low-to-high edge triggered.
> +      2 = high-to-low edge triggered.
> +      3 = triggered on both edges.
> +      4 = active high level-sensitive.
> +      8 = active low level-sensitive.

These are identical to the values in <dt-bindings/interrupt-controller/irq.h>.
Perhaps you can refer to those definitions?
I don't think we want to see the hardcoded numbers in DTS files.

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds