Re: [PATCH 2/4] dt-bindings: iio: timer: Convert stm32 IIO trigger bindings to json-schema

[Benjamin Gaignard <benjamin.gaignard@linaro.org>]

Le dim. 3 nov. 2019 à 12:08, Jonathan Cameron <jic23@kernel.org> a écrit :
>
> On Thu, 31 Oct 2019 13:30:38 +0100
> Benjamin Gaignard <benjamin.gaignard@st.com> wrote:
>
> > Convert the STM32 IIO trigger binding to DT schema format using json-schema
> >
> > Signed-off-by: Benjamin Gaignard <benjamin.gaignard@st.com>
> I'm far from great on these as still haven't taken the time I should to learn
> the yaml syntax properly.  A few comments inline however based mostly on this
> doesn't quite look like other ones I've seen recently.
>
> Thanks,
>
> Jonathan
>
> > ---
> >  .../bindings/iio/timer/st,stm32-timer-trigger.yaml | 44 ++++++++++++++++++++++
> >  .../bindings/iio/timer/stm32-timer-trigger.txt     | 25 ------------
> >  2 files changed, 44 insertions(+), 25 deletions(-)
> >  create mode 100644 Documentation/devicetree/bindings/iio/timer/st,stm32-timer-trigger.yaml
> >  delete mode 100644 Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt
> >
> > diff --git a/Documentation/devicetree/bindings/iio/timer/st,stm32-timer-trigger.yaml b/Documentation/devicetree/bindings/iio/timer/st,stm32-timer-trigger.yaml
> > new file mode 100644
> > index 000000000000..1c8c8b55e8cd
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/iio/timer/st,stm32-timer-trigger.yaml
> > @@ -0,0 +1,44 @@
> > +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> > +%YAML 1.2
> > +---
> > +$id: http://devicetree.org/schemas/iio/timer/st,stm32-timer-trigger.yaml#
> > +$schema: http://devicetree.org/meta-schemas/core.yaml#
> > +
> > +title: STMicroelectronics STM32 Timers IIO timer bindings
> > +
> > +maintainers:
> > +  - Benjamin Gaignard <benjamin.gaignard@st.com>
> > +  - Fabrice Gasnier <fabrice.gasnier@st.com>
> > +
> > +properties:
> > +  $nodemane:
>
> nodename?

That will be in v2

>
> > +    pattern: "^timer@[0-9]+$"
> > +    type: object
> > +
> > +    description:
> > +      must be a sub-node of an STM32 Timer device tree node
> > +
> > +    properties:
> > +      compatible:
> > +        oneOf:
>
> enum is I think preferred for these.

as you like it will be in v2

>
> > +          - const: st,stm32-timer-trigger
> > +          - const: st,stm32h7-timer-trigger
> > +
> > +      reg: true
>
> Normally some info for what the reg value is..
I can't put "description" on this field because the syntax doesn't allow it.
I will add a comment in v2 to explain what reg is.

Thanks for your review.
Benjamin
>
> > +
> > +    required:
> > +      - compatible
> > +      - reg
> > +
> > +examples:
> > +  - |
> > +    timers2: timer@40000000 {
> > +      #address-cells = <1>;
> > +      #size-cells = <0>;
> > +      timer@0 {
> > +        compatible = "st,stm32-timer-trigger";
> > +        reg = <0>;
> > +      };
> > +    };
> > +
> > +...
> > diff --git a/Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt b/Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt
> > deleted file mode 100644
> > index b8e8c769d434..000000000000
> > --- a/Documentation/devicetree/bindings/iio/timer/stm32-timer-trigger.txt
> > +++ /dev/null
> > @@ -1,25 +0,0 @@
> > -STMicroelectronics STM32 Timers IIO timer bindings
> > -
> > -Must be a sub-node of an STM32 Timers device tree node.
> > -See ../mfd/stm32-timers.txt for details about the parent node.
> > -
> > -Required parameters:
> > -- compatible:        Must be one of:
> > -             "st,stm32-timer-trigger"
> > -             "st,stm32h7-timer-trigger"
> > -- reg:               Identify trigger hardware block.
> > -
> > -Example:
> > -     timers@40010000 {
> > -             #address-cells = <1>;
> > -             #size-cells = <0>;
> > -             compatible = "st,stm32-timers";
> > -             reg = <0x40010000 0x400>;
> > -             clocks = <&rcc 0 160>;
> > -             clock-names = "int";
> > -
> > -             timer@0 {
> > -                     compatible = "st,stm32-timer-trigger";
> > -                     reg = <0>;
> > -             };
> > -     };
>
>
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