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Subject: Re: [PATCH] dt-bindings: iio: accel: adxl372: switch to YAML bindings
To:     Alexandru Ardelean <ardeleanalex@gmail.com>,
        Jonathan Cameron <jic23@kernel.org>
Cc:     Hartmut Knaack <knaack.h@gmx.de>,
        Lars-Peter Clausen <lars@metafoo.de>,
        Peter Meerwald-Stadler <pmeerw@pmeerw.net>,
        Rob Herring <robh+dt@kernel.org>,
        Mark Rutland <mark.rutland@arm.com>,
        Stefan Popa <stefan.popa@analog.com>,
        linux-iio@vger.kernel.org, devicetree@vger.kernel.org,
        LKML <linux-kernel@vger.kernel.org>, kernel-usp@googlegroups.com,
        Rodrigo Ribeiro <rodrigorsdc@gmail.com>,
        Alexandru Ardelean <alexandru.ardelean@analog.com>
References: <20190518215542.25140-1-lucasseikioshiro@gmail.com>
 <20190519122418.7722641b@archlinux>
 <CA+U=DsrvRcAARa+jZB8GKQ+q+wWWqAh7dmnHymLd9cpFGC2QSw@mail.gmail.com>
From:   Lucas Oshiro <lucasseikioshiro@gmail.com>
Message-ID: <504cc8e0-b94e-5418-ef8f-8b28f668ab6a@gmail.com>
Date:   Fri, 31 May 2019 17:09:51 -0300
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Thanks, Alexandru. We're going to send a new version for this patch.

On 20/05/2019 07:46, Alexandru Ardelean wrote:
> On Sun, May 19, 2019 at 8:27 PM Jonathan Cameron <jic23@kernel.org> wrote:
>>
>> On Sat, 18 May 2019 18:55:42 -0300
>> Lucas Oshiro <lucasseikioshiro@gmail.com> wrote:
>>
>>> Convert the old device tree documentation to yaml format.
>>>
>>> Signed-off-by: Lucas Oshiro <lucasseikioshiro@gmail.com>
>>> Signed-off-by: Rodrigo Ribeiro <rodrigorsdc@gmail.com>
>>> Co-developed-by: Rodrigo Ribeiro <rodrigorsdc@gmail.com>
>>> ---
>>>
>>> Hello,
>>> We've added Stefan Popa as maintainer of the yaml documentation of this driver
>>> because we found through git that he was the author of the older documentation.
>>
>> Definitely going to need an Ack from Stefan for that ;)
> 
> CC-ing my work-email
> There are some issues with it and mailing lists; I'll hopefully sort
> them out in the next weeks.
> 
> Stefan is out-of-office.
> He'll take a look when he comes back.
> 
> I'll add a few notes until then.
> 
> I'd still like Stefan's ack to be final.
> 
>>
>> I've not really gotten yaml formats into my head yet, but from a quick
>> look I think this is fine.  I will however be looking for review from others
>> on these.
>>
>> Thanks,
>>
>> Jonathan
>>
>>>
>>>   .../bindings/iio/accel/adi,adxl372.yaml       | 66 +++++++++++++++++++
>>>   .../devicetree/bindings/iio/accel/adxl372.txt | 33 ----------
>>>   2 files changed, 66 insertions(+), 33 deletions(-)
>>>   create mode 100644 Documentation/devicetree/bindings/iio/accel/adi,adxl372.yaml
>>>   delete mode 100644 Documentation/devicetree/bindings/iio/accel/adxl372.txt
> 
> Also update the MAINTAINERS file when changing this.
> For reference, many things can be borrowed from the ADXL345, which is
> similar (from a dt-binding doc perspective only).
> 
>>>
>>> diff --git a/Documentation/devicetree/bindings/iio/accel/adi,adxl372.yaml b/Documentation/devicetree/bindings/iio/accel/adi,adxl372.yaml
>>> new file mode 100644
>>> index 000000000000..a6e2893d2ab1
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/iio/accel/adi,adxl372.yaml
>>> @@ -0,0 +1,66 @@
>>> +# SPDX-License-Identifier: GPL-2.0
>>> +%YAML 1.2
>>> +---
>>> +$id: http://devicetree.org/schemas/iio/accelerometers/adi,adxl372.yaml#
>>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>>> +
>>> +title: Analog Devices ADXL372 3-Axis, +/-(200g) Digital Accelerometer
>>> +
>>> +maintainers:
>>> +  - Stefan Popa <stefan.popa@analog.com>
>>> +
>>> +description: |
>>> +  Analog Devices ADXL372 3-Axis, +/-(200g) Digital Accelerometer that supports
>>> +  both I2C & SPI interfaces
>>> +    https://www.analog.com/en/products/adxl372.html
>>> +
>>> +properties:
>>> +  compatible:
>>> +    enum:
>>> +      - adi,adxl372
>>> +
>>> +  reg:
>>> +    description: the I2C address or SPI chip select number for the device
> 
> no need to add a description for reg
> it's a standard property
> 
>>> +    maxItems: 1
>>> +
>>> +  interrupts:
>>> +    description:
>>> +      interrupt mapping for IRQ as documented in
>>> +      Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
> 
> no need to describe this either
> 
>>> +    maxItems: 1
>>> +
>>> +required:
>>> +  - compatible
>>> +  - reg
> 
> I think interrupts is also required.
> 
>>> +
>>> +examples:
>>> +  - |
>>> +        #include <dt-bindings/gpio/gpio.h>
>>> +        #include <dt-bindings/interrupt-controller/irq.h>
>>> +        i2c0 {
>>> +                #address-cells = <1>;
>>> +                #size-cells = <0>;
>>> +
>>> +                /* Example for a I2C device node */
>>> +                accelerometer@53 {
>>> +                        compatible = "adi,adxl372";
>>> +                        reg = <0x53>;
>>> +                        interrupt-parent = <&gpio>;
>>> +                        interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
>>> +                };
>>> +        };
>>> +  - |
>>> +        #include <dt-bindings/gpio/gpio.h>
>>> +        #include <dt-bindings/interrupt-controller/irq.h>
>>> +        spi0 {
>>> +                #address-cells = <1>;
>>> +                #size-cells = <0>;
>>> +
>>> +                accelerometer@0 {
>>> +                        compatible = "adi,adxl372";
>>> +                        reg = <0>;
>>> +                        spi-max-frequency = <1000000>;
>>> +                        interrupt-parent = <&gpio>;
>>> +                        interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
>>> +                };
>>> +        };
> 
> Rest looks good.
> 
>>> diff --git a/Documentation/devicetree/bindings/iio/accel/adxl372.txt b/Documentation/devicetree/bindings/iio/accel/adxl372.txt
>>> deleted file mode 100644
>>> index a289964756a7..000000000000
>>> --- a/Documentation/devicetree/bindings/iio/accel/adxl372.txt
>>> +++ /dev/null
>>> @@ -1,33 +0,0 @@
>>> -Analog Devices ADXL372 3-Axis, +/-(200g) Digital Accelerometer
>>> -
>>> -http://www.analog.com/media/en/technical-documentation/data-sheets/adxl372.pdf
>>> -
>>> -Required properties:
>>> - - compatible : should be "adi,adxl372"
>>> - - reg: the I2C address or SPI chip select number for the device
>>> -
>>> -Required properties for SPI bus usage:
>>> - - spi-max-frequency: Max SPI frequency to use
>>> -
>>> -Optional properties:
>>> - - interrupts: interrupt mapping for IRQ as documented in
>>> -   Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
>>> -
>>> -Example for a I2C device node:
>>> -
>>> -     accelerometer@53 {
>>> -             compatible = "adi,adxl372";
>>> -             reg = <0x53>;
>>> -             interrupt-parent = <&gpio>;
>>> -             interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
>>> -     };
>>> -
>>> -Example for a SPI device node:
>>> -
>>> -     accelerometer@0 {
>>> -             compatible = "adi,adxl372";
>>> -             reg = <0>;
>>> -             spi-max-frequency = <1000000>;
>>> -             interrupt-parent = <&gpio>;
>>> -             interrupts = <25 IRQ_TYPE_EDGE_FALLING>;
>>> -     };
>>