linux-kernel - Re: [RFC PATCH v4 06/10] devicetree: bindings: Document first ROHM BD70528 bindings

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Date:   Mon, 4 Feb 2019 12:25:41 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
Cc:     Matti Vaittinen <mazziesaccount@...il.com>,
        heikki.haikola@...rohmeurope.com, mikko.mutanen@...rohmeurope.com,
        Lee Jones <lee.jones@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        Mark Brown <broonie@...nel.org>,
        Greg KH <gregkh@...uxfoundation.org>,
        "Rafael J. Wysocki" <rafael@...nel.org>,
        Michael Turquette <mturquette@...libre.com>,
        Stephen Boyd <sboyd@...nel.org>,
        Bartosz Golaszewski <bgolaszewski@...libre.com>,
        Sebastian Reichel <sre@...nel.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        linux-clk <linux-clk@...r.kernel.org>,
        "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        Linux PM list <linux-pm@...r.kernel.org>,
        linux-rtc@...r.kernel.org,
        LINUXWATCHDOG <linux-watchdog@...r.kernel.org>
Subject: Re: [RFC PATCH v4 06/10] devicetree: bindings: Document first ROHM
 BD70528 bindings

On Thu, Jan 31, 2019 at 1:04 PM Matti Vaittinen
<matti.vaittinen@...rohmeurope.com> wrote:

> Document bindings for regulators (3 bucks, 3 LDOs and 2 LED
> drivers) and 4 GPIO pins which can be configured for I/O or
> as interrupt sources withe configurable trigger levels.
>
> Signed-off-by: Matti Vaittinen <matti.vaittinen@...rohmeurope.com>
(...)
> +Required properties:
> + - compatible          : Should be "rohm,bd70528"
> + - reg                 : I2C slave address.
> + - interrupts          : The interrupt line the device is connected to.
> + - interrupt-controller        : To indicate bd70528 acts as an interrupt controller.
> + - #interrupt-cells    : Should be 2. usage is compliant to the 2 cells
> +                         variant of ../interrupt-controller/interrupts.txt
> + - gpio-controller     : To indicate bd70528 acts as a gpio controller.
> + - #gpio-cells         : Should be 2. The first cell is the pin number and
> +                         the second cell is used to specify flags. See
> +                         ../gpio/gpio.txt for more information.
> + - #clock-cells                : Should be 0.
> + - regulators:         : List of child nodes that specify the regulators.
> +                         Please see ../regulator/rohm,bd70528-regulator.txt

So if I understand correctly, the clocks and GPIO does not spawn any
child nodes but are attached directly to the MFD node.
This works!
Acked-by: Linus Walleij <linus.walleij@...aro.org>

Yours,
Linus Walleij