linux-kernel - Re: [PATCH] dt-bindings: watchdog: Convert stm32 watchdog bindings to json-schema

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Message-ID: <63f96a2f-78c0-21ae-781b-e52068f57103@st.com>
Date:   Thu, 17 Oct 2019 15:06:24 +0200
From:   Alexandre Torgue <alexandre.torgue@...com>
To:     Benjamin Gaignard <benjamin.gaignard@...com>,
        <wim@...ux-watchdog.org>, <linux@...ck-us.net>,
        <robh+dt@...nel.org>, <mark.rutland@....com>
CC:     <linux-watchdog@...r.kernel.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] dt-bindings: watchdog: Convert stm32 watchdog bindings to
 json-schema

Hi Benjamin

On 10/17/19 2:41 PM, Benjamin Gaignard wrote:
> Convert the STM32 watchdog binding to DT schema format using json-schema
> 
> Signed-off-by: Benjamin Gaignard <benjamin.gaignard@...com>
> ---
>   .../devicetree/bindings/watchdog/st,stm32-iwdg.txt | 26 -----------
>   .../bindings/watchdog/st,stm32-iwdg.yaml           | 54 ++++++++++++++++++++++
>   2 files changed, 54 insertions(+), 26 deletions(-)
>   delete mode 100644 Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.txt
>   create mode 100644 Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.yaml
> 
> diff --git a/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.txt b/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.txt
> deleted file mode 100644
> index d8f4430b0a13..000000000000
> --- a/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.txt
> +++ /dev/null
> @@ -1,26 +0,0 @@
> -STM32 Independent WatchDoG (IWDG)
> ----------------------------------
> -
> -Required properties:
> -- compatible: Should be either:
> -  - "st,stm32-iwdg"
> -  - "st,stm32mp1-iwdg"
> -- reg: Physical base address and length of the registers set for the device
> -- clocks: Reference to the clock entry lsi. Additional pclk clock entry
> -  is required only for st,stm32mp1-iwdg.
> -- clock-names: Name of the clocks used.
> -  "lsi" for st,stm32-iwdg
> -  "lsi", "pclk" for st,stm32mp1-iwdg
> -
> -Optional Properties:
> -- timeout-sec: Watchdog timeout value in seconds.
> -
> -Example:
> -
> -iwdg: watchdog@...03000 {
> -	compatible = "st,stm32-iwdg";
> -	reg = <0x40003000 0x400>;
> -	clocks = <&clk_lsi>;
> -	clock-names = "lsi";
> -	timeout-sec = <32>;
> -};
> diff --git a/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.yaml b/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.yaml
> new file mode 100644
> index 000000000000..edec96d53e6b
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/watchdog/st,stm32-iwdg.yaml
> @@ -0,0 +1,54 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/watchdog/st,stm32-iwdg.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: STMicroelectronics STM32 Independent WatchDoG (IWDG) bindings
> +
> +maintainers:
> +  - Yannick Fertre <yannick.fertre@...com>

Yannick is still working on this driver ?

> +
> +allOf:
> +  - $ref: "watchdog.yaml#"
> +
> +properties:
> +  compatible:
> +    enum:
> +      - st,stm32-iwdg
> +      - st,stm32mp1-iwdg
> +
> +  reg:
> +    maxItems: 1
> +
> +  clocks:
> +    items:
> +      - description: Low speed clock
> +      - description: Optional peripheral clock
> +    minItems: 1
> +    maxItems: 2
> +
> +  clock-names:
> +    items:
> +      enums: [ lsi, pclk ]
> +    minItems: 1
> +    maxItems: 2
> +
> +required:
> +  - compatible
> +  - reg
> +  - clocks
> +  - clock-names
> +
> +examples:
> +  - |
> +    #include <dt-bindings/clock/stm32mp1-clks.h>
> +    watchdog@...02000 {
> +      compatible = "st,stm32mp1-iwdg";
> +      reg = <0x5a002000 0x400>;
> +      clocks = <&rcc IWDG2>, <&rcc CK_LSI>;
> +      clock-names = "pclk", "lsi";
> +      timeout-sec = <32>;
> +    };
> +
> +...
>