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Date: Mon, 20 May 2019 13:46:37 +0300
From: Alexandru Ardelean <ardeleanalex@...il.com>
To: Jonathan Cameron <jic23@...nel.org>
Cc: Lucas Oshiro <lucasseikioshiro@...il.com>,
Hartmut Knaack <knaack.h@....de>,
Lars-Peter Clausen <lars@...afoo.de>,
Peter Meerwald-Stadler <pmeerw@...erw.net>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Stefan Popa <stefan.popa@...log.com>,
linux-iio@...r.kernel.org, devicetree@...r.kernel.org,
LKML <linux-kernel@...r.kernel.org>, kernel-usp@...glegroups.com,
Rodrigo Ribeiro <rodrigorsdc@...il.com>,
Alexandru Ardelean <alexandru.ardelean@...log.com>
Subject: Re: [PATCH] dt-bindings: iio: accel: adxl372: switch to YAML bindings
On Sun, May 19, 2019 at 8:27 PM Jonathan Cameron <jic23@...nel.org> wrote:
>
> On Sat, 18 May 2019 18:55:42 -0300
> Lucas Oshiro <lucasseikioshiro@...il.com> wrote:
>
> > Convert the old device tree documentation to yaml format.
> >
> > Signed-off-by: Lucas Oshiro <lucasseikioshiro@...il.com>
> > Signed-off-by: Rodrigo Ribeiro <rodrigorsdc@...il.com>
> > Co-developed-by: Rodrigo Ribeiro <rodrigorsdc@...il.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@...log.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>;
> > - };
>
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