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

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Message-ID: <20191103110841.3ad3ecfb@archlinux>
Date:   Sun, 3 Nov 2019 11:08:41 +0000
From:   Jonathan Cameron <jic23@...nel.org>
To:     Benjamin Gaignard <benjamin.gaignard@...com>
Cc:     <robh+dt@...nel.org>, <mark.rutland@....com>,
        <alexandre.torgue@...com>, <fabrice.gasnier@...com>,
        <knaack.h@....de>, <lars@...afoo.de>, <pmeerw@...erw.net>,
        <lee.jones@...aro.org>, <thierry.reding@...il.com>,
        <u.kleine-koenig@...gutronix.de>, <devicetree@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <linux-iio@...r.kernel.org>,
        <linux-pwm@...r.kernel.org>
Subject: Re: [PATCH 2/4] dt-bindings: iio: timer: Convert stm32 IIO trigger
 bindings to json-schema

On Thu, 31 Oct 2019 13:30:38 +0100
Benjamin Gaignard <benjamin.gaignard@...com> wrote:

> Convert the STM32 IIO trigger binding to DT schema format using json-schema
> 
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...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@...com>
> +  - Fabrice Gasnier <fabrice.gasnier@...com>
> +
> +properties:
> +  $nodemane:

nodename?

> +    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.

> +          - const: st,stm32-timer-trigger
> +          - const: st,stm32h7-timer-trigger
> +            
> +      reg: true

Normally some info for what the reg value is..

> +
> +    required:
> +      - compatible
> +      - reg
> +
> +examples:
> +  - |
> +    timers2: timer@...00000 {
> +      #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@...10000 {
> -		#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>;
> -		};
> -	};