linux-kernel - Re: [PATCH v6 1/2] dt-bindings: iio: accel: bma400: add bindings

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Date:   Thu, 12 Dec 2019 11:16:47 +0100
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Dan Robertson <dan@...obertson.com>
Cc:     Jonathan Cameron <jic23@...nel.org>, linux-iio@...r.kernel.org,
        Peter Meerwald-Stadler <pmeerw@...erw.net>,
        Andy Shevchenko <andy.shevchenko@...il.com>,
        "open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" 
        <devicetree@...r.kernel.org>, Hartmut Knaack <knaack.h@....de>,
        Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Randy Dunlap <rdunlap@...radead.org>,
        Joe Perches <joe@...ches.com>
Subject: Re: [PATCH v6 1/2] dt-bindings: iio: accel: bma400: add bindings

Hi Dan,

thanks for your patch!

On Wed, Dec 11, 2019 at 2:20 AM Dan Robertson <dan@...obertson.com> wrote:

> Add devicetree binding for the Bosch BMA400 3-axes ultra-low power
> accelerometer sensor.
>
> Signed-off-by: Dan Robertson <dan@...obertson.com>
(...)

> +  Specifications about the sensor can be found at:
> +    https://ae-bst.resource.bosch.com/media/_tech/media/datasheets/BST-BMA400-DS000.pdf

As can be seen in page 113 in the manual this component
has VDD and VDDIO supplies and sooner or later someone
is going to have to model that so I'd say add vdd-supply and
vddio-supply regulator phandles as optional to the component
already from start.

Thanks!
Linus Walleij