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Message-ID: <e6c68580df0bb8441bf5beabfa978bfe15e0a39d.camel@maquefel.me>
Date: Tue, 20 Jun 2023 10:30:54 +0300
From: Nikita Shubin <nikita.shubin@...uefel.me>
To: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
Alexander Sverdlin <alexander.sverdlin@...il.com>,
Arnd Bergmann <arnd@...db.de>,
Linus Walleij <linus.walleij@...aro.org>,
Alessandro Zummo <a.zummo@...ertech.it>,
Alexandre Belloni <alexandre.belloni@...tlin.com>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>
Cc: Michael Peters <mpeters@...eddedTS.com>,
Kris Bahnsen <kris@...eddedTS.com>, linux-rtc@...r.kernel.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v1 29/43] dt-bindings: rtc: Add ST M48T86
Hello Krzysztof!
On Thu, 2023-06-01 at 10:18 +0200, Krzysztof Kozlowski wrote:
> On 01/06/2023 07:45, Nikita Shubin wrote:
> > Add YAML bindings for ST M48T86 / Dallas DS12887 RTC.
> >
> > Signed-off-by: Nikita Shubin <nikita.shubin@...uefel.me>
> > ---
> >
> > Notes:
> > v0 -> v1:
> >
> > - s/dallas/st/
> > - description for regs
> > - s/additionalProperties/unevaluatedProperties/
> > - add ref rtc.yaml
> > - changed compatible to st,m48t86
> > - dropped label in example
> > - replaced Alessandro Alessandro to Alexandre Belloni
> >
> > .../bindings/rtc/st,m48t86-rtc.yaml | 38
> > +++++++++++++++++++
> > 1 file changed, 38 insertions(+)
> > create mode 100644
> > Documentation/devicetree/bindings/rtc/st,m48t86-rtc.yaml
> >
> > diff --git a/Documentation/devicetree/bindings/rtc/st,m48t86-
> > rtc.yaml b/Documentation/devicetree/bindings/rtc/st,m48t86-rtc.yaml
> > new file mode 100644
> > index 000000000000..eb8e6451d7c8
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/rtc/st,m48t86-rtc.yaml
>
> Filename based on compatible, so drop "rtc".
>
> > @@ -0,0 +1,38 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/rtc/st,m48t86-rtc.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: ST M48T86 / Dallas DS12887 RTC wirh SRAM
>
> typo: with
>
> > +
> > +maintainers:
> > + - Alexandre Belloni <alexandre.belloni@...tlin.com>
> > +
> > +properties:
> > + compatible:
> > + enum:
> > + - st,m48t86
> > +
> > + reg:
> > + items:
> > + - description: index register
> > + - description: data register
> > +
> > +allOf:
> > + - $ref: rtc.yaml
> > +
> > +unevaluatedProperties: false
> > +
> > +required:
> > + - compatible
> > + - reg
>
> required goes after properties:
>
> Keep the same order in all your patches.
>
> > +
> > +examples:
> > + - |
> > + rtc@...00000 {
> > + compatible = "st,m48t86";
> > + reg = <0x10800000 0x1>, <0x11700000 0x1>;
>
> One byte long? Not a word?
They are indeed one byte long:
https://elixir.bootlin.com/linux/v6.4-rc7/source/drivers/rtc/rtc-m48t86.c#L46
>
> > + };
> > +
> > +...
>
> Best regards,
> Krzysztof
>
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