linux-kernel - Re: [PATCH v4 2/5] dt-bindings: rtc: abx80x: convert to yaml

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Date: Sat, 3 Feb 2024 15:10:50 +0000
From: Conor Dooley <conor@...nel.org>
To: Josua Mayer <josua@...id-run.com>
Cc: Nishanth Menon <nm@...com>, Vignesh Raghavendra <vigneshr@...com>,
	Tero Kristo <kristo@...nel.org>, Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Alessandro Zummo <a.zummo@...ertech.it>,
	Alexandre Belloni <alexandre.belloni@...tlin.com>,
	Yazan Shhady <yazan.shhady@...id-run.com>,
	linux-arm-kernel@...ts.infradead.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-rtc@...r.kernel.org
Subject: Re: [PATCH v4 2/5] dt-bindings: rtc: abx80x: convert to yaml

On Sat, Feb 03, 2024 at 03:08:59PM +0000, Conor Dooley wrote:
> Hey,
> 
> On Fri, Feb 02, 2024 at 05:10:49PM +0100, Josua Mayer wrote:
> > Convert the abracon abx80x rtc text bindings to dt-schema format.
> > 
> > In addition to the text description reference generic interrupts
> > properties and add an example.
> > 
> > Signed-off-by: Josua Mayer <josua@...id-run.com>
> > ---
> >  .../devicetree/bindings/rtc/abracon,abx80x.txt     | 31 ---------
> >  .../devicetree/bindings/rtc/abracon,abx80x.yaml    | 74 ++++++++++++++++++++++
> >  2 files changed, 74 insertions(+), 31 deletions(-)
> > 
> > diff --git a/Documentation/devicetree/bindings/rtc/abracon,abx80x.txt b/Documentation/devicetree/bindings/rtc/abracon,abx80x.txt
> > deleted file mode 100644
> > index 2405e35a1bc0..000000000000
> > --- a/Documentation/devicetree/bindings/rtc/abracon,abx80x.txt
> > +++ /dev/null
> > @@ -1,31 +0,0 @@
> > -Abracon ABX80X I2C ultra low power RTC/Alarm chip
> > -
> > -The Abracon ABX80X family consist of the ab0801, ab0803, ab0804, ab0805, ab1801,
> > -ab1803, ab1804 and ab1805. The ab0805 is the superset of ab080x and the ab1805
> > -is the superset of ab180x.
> > -
> > -Required properties:
> > -
> > - - "compatible": should one of:
> > -        "abracon,abx80x"
> > -        "abracon,ab0801"
> > -        "abracon,ab0803"
> > -        "abracon,ab0804"
> > -        "abracon,ab0805"
> > -        "abracon,ab1801"
> > -        "abracon,ab1803"
> > -        "abracon,ab1804"
> > -        "abracon,ab1805"
> > -        "microcrystal,rv1805"
> > -	Using "abracon,abx80x" will enable chip autodetection.
> > - - "reg": I2C bus address of the device
> > -
> > -Optional properties:
> > -
> > -The abx804 and abx805 have a trickle charger that is able to charge the
> > -connected battery or supercap. Both the following properties have to be defined
> > -and valid to enable charging:
> > -
> > - - "abracon,tc-diode": should be "standard" (0.6V) or "schottky" (0.3V)
> > - - "abracon,tc-resistor": should be <0>, <3>, <6> or <11>. 0 disables the output
> > -                          resistor, the other values are in kOhm.
> > diff --git a/Documentation/devicetree/bindings/rtc/abracon,abx80x.yaml b/Documentation/devicetree/bindings/rtc/abracon,abx80x.yaml
> > new file mode 100644
> > index 000000000000..405b386a54b0
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/rtc/abracon,abx80x.yaml
> > @@ -0,0 +1,74 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/rtc/abracon,abx80x.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: Abracon ABX80X I2C ultra low power RTC/Alarm chip
> > +
> > +maintainers:
> > +  - devicetree@...r.kernel.org
> 
> Ideally you put someone here, not the DT list. Usually the original
> author is a good choice, which I think happens to be the subsystem
> maintainer... Failing that, the rtc subsystem list is likely a better
> choice than the DT one.
> 
> > +
> > +allOf:
> > +  - $ref: rtc.yaml#
> 
> > +  - $ref: /schemas/interrupts.yaml#
> 
> This should not be need.

Ahh I now realise what your intent was here. All you need to do is add
| interrupts:
|   maxItems: 1
to your binding and it should do what you're looking for.

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