linux-kernel - Re: [PATCH 2/2] dt-bindings: iio: gyro: Add DT binding doc for ADXRS290

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Date:   Wed, 22 Jul 2020 00:41:55 +0530
From:   Nishant Malpani <nish.malpani25@...il.com>
To:     Rob Herring <robh@...nel.org>, Jonathan Cameron <jic23@...nel.org>
Cc:     dragos.bogdan@...log.com, darius.berghe@...log.com,
        linux-kernel@...r.kernel.org, linux-iio@...r.kernel.org,
        devicetree@...r.kernel.org
Subject: Re: [PATCH 2/2] dt-bindings: iio: gyro: Add DT binding doc for
 ADXRS290

Hello Jonathon & Rob,

Thanks for the review. Comments inline...

On 21/07/20 8:11 am, Rob Herring wrote:
> On Mon, Jul 20, 2020 at 12:16:33PM +0100, Jonathan Cameron wrote:
>> On Wed, 15 Jul 2020 14:58:21 +0530
>> Nishant Malpani <nish.malpani25@...il.com> wrote:
>>
>>> Add devicetree binding document for ADXRS290, a dual-axis MEMS gyroscope.
>>>
>>> Signed-off-by: Nishant Malpani <nish.malpani25@...il.com>
>>> ---
>>>   .../bindings/iio/gyroscope/adi,adxrs290.yaml  | 52 +++++++++++++++++++
>>>   MAINTAINERS                                   |  1 +
>>>   2 files changed, 53 insertions(+)
>>>   create mode 100644 Documentation/devicetree/bindings/iio/gyroscope/adi,adxrs290.yaml
>>>
>>> diff --git a/Documentation/devicetree/bindings/iio/gyroscope/adi,adxrs290.yaml b/Documentation/devicetree/bindings/iio/gyroscope/adi,adxrs290.yaml
>>> new file mode 100644
>>> index 000000000000..a997d945fdb0
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/iio/gyroscope/adi,adxrs290.yaml
>>> @@ -0,0 +1,52 @@
>>> +# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
>>> +# Copyright 2020 Analog Devices Inc.
>>> +%YAML 1.2
>>> +---
>>> +$id: http://devicetree.org/schemas/iio/gyroscope/adi,adxrs290.yaml#
>>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>>> +
>>> +title: Analog Devices ADXRS290 Dual-Axis MEMS Gyroscope
>>> +
>>> +maintainers:
>>> +  - Nishant Malpani <nish.malpani25@...il.com>
>>> +
>>> +description: |
>>> +  Bindings for the Analog Devices ADXRS290 dual-axis MEMS gyroscope device.
>>> +  https://www.analog.com/media/en/technical-documentation/data-sheets/ADXRS290.pdf
>>> +
>>> +properties:
>>> +  compatible:
>>> +    enum:
>>> +      - adi,adxrs290
>>
>> I think we can use const here as only one item currently.
> 
> Yep. Really depends if you expect to add more.
> 
I'm not aware if we'll be adding more. For now, made it a 'const' in v2.

>>
>>> +
>>> +  reg:
>>> +    maxItems: 1
>>> +
>>> +  spi-max-frequency:
>>> +    maximum: 5000000
>>> +
>>> +  spi-cpol: true
>>> +
>>> +  spi-cpha: true
>>> +
>>> +required:
>>> +  - compatible
>>> +  - reg
>>> +  - spi-max-frequency
>>> +  - spi-cpol
>>> +  - spi-cpha
> 
> Add:
> 
> additionalProperties: false
> 
Okay. Acked in v2.

Regards,
Nishant Malpani

>>> +
>>> +examples:
>>> +  - |
>>> +    spi {
>>> +        #address-cells = <1>;
>>> +        #size-cells = <0>;
>>> +        gyro@0 {
>>> +                   compatible = "adi,adxrs290";
>>> +                   reg = <0>;
>>> +                   spi-max-frequency = <5000000>;
>>> +                   spi-cpol;
>>> +                   spi-cpha;
>>> +        };
>>> +    };
>>> +...
>>> diff --git a/MAINTAINERS b/MAINTAINERS
>>> index dd02cfc410e8..0bb8ac90fba1 100644
>>> --- a/MAINTAINERS
>>> +++ b/MAINTAINERS
>>> @@ -1103,6 +1103,7 @@ M:	Nishant Malpani <nish.malpani25@...il.com>
>>>   L:	linux-iio@...r.kernel.org
>>>   S:	Supported
>>>   F:	drivers/iio/gyro/adxrs290.c
>>> +F:	Documentation/devicetree/bindings/iio/gyroscope/adi,adxrs290.yaml
>>>   
>>>   ANALOG DEVICES INC ASOC CODEC DRIVERS
>>>   M:	Lars-Peter Clausen <lars@...afoo.de>
>>