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

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Date:   Thu, 17 Oct 2019 13:17:01 +0000
From:   Benjamin GAIGNARD <benjamin.gaignard@...com>
To:     Alexandre TORGUE <alexandre.torgue@...com>,
        "wim@...ux-watchdog.org" <wim@...ux-watchdog.org>,
        "linux@...ck-us.net" <linux@...ck-us.net>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>
CC:     "linux-watchdog@...r.kernel.org" <linux-watchdog@...r.kernel.org>,
        "linux-stm32@...md-mailman.stormreply.com" 
        <linux-stm32@...md-mailman.stormreply.com>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] dt-bindings: watchdog: Convert stm32 watchdog bindings to
 json-schema


On 10/17/19 3:06 PM, Alexandre Torgue wrote:
> 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 ?

That is a good question.

Rob, can we use the STM32 dedicated mailing list address for this 
mainteners field ?

maintainers:

- linux STM32 <linux-stm32@...md-mailman.stormreply.com>

Regards,

Benjamin

>
>> +
>> +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>;
>> +    };
>> +
>> +...
>>