linux-kernel - Re: [PATCH 3/5] dt-bindings: watchdog: mediatek: Convert mtk-wdt to json-schema

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Date:   Wed, 5 Oct 2022 15:42:16 +0200
From:   AngeloGioacchino Del Regno 
        <angelogioacchino.delregno@...labora.com>
To:     Rob Herring <robh@...nel.org>
Cc:     wim@...ux-watchdog.org, linux@...ck-us.net,
        krzysztof.kozlowski+dt@...aro.org, matthias.bgg@...il.com,
        allen-kh.cheng@...iatek.com, seiya.wang@...iatek.com,
        tinghan.shen@...iatek.com, linux-watchdog@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH 3/5] dt-bindings: watchdog: mediatek: Convert mtk-wdt to
 json-schema

Il 05/10/22 15:38, Rob Herring ha scritto:
> On Wed, Oct 05, 2022 at 01:35:15PM +0200, AngeloGioacchino Del Regno wrote:
>> Convert the MediaTek watchdog bindings to schema.
>>
>> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>
>> ---
>>   .../bindings/watchdog/mediatek,mtk-wdt.yaml   | 80 +++++++++++++++++++
>>   .../devicetree/bindings/watchdog/mtk-wdt.txt  | 42 ----------
>>   2 files changed, 80 insertions(+), 42 deletions(-)
>>   create mode 100644 Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml
>>   delete mode 100644 Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
>>
>> diff --git a/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml b/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml
>> new file mode 100644
>> index 000000000000..f43b5af92d40
>> --- /dev/null
>> +++ b/Documentation/devicetree/bindings/watchdog/mediatek,mtk-wdt.yaml
>> @@ -0,0 +1,80 @@
>> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
>> +%YAML 1.2
>> +---
>> +$id: http://devicetree.org/schemas/watchdog/mediatek,mtk-wdt.yaml#
>> +$schema: http://devicetree.org/meta-schemas/core.yaml#
>> +
>> +title: MediaTek SoCs Watchdog timer
>> +
>> +maintainers:
>> +  - Matthias Brugger <matthias.bgg@...il.com>
>> +
>> +description:
>> +  The watchdog supports a pre-timeout interrupt that fires
>> +  timeout-sec/2 before the expiry.
>> +
>> +allOf:
>> +  - $ref: watchdog.yaml#
>> +
>> +properties:
>> +  compatible:
>> +    oneOf:
>> +      - items:
>> +          - enum:
>> +              - mediatek,mt2712-wdt
>> +              - mediatek,mt6589-wdt
>> +              - mediatek,mt7986-wdt
>> +              - mediatek,mt8183-wdt
>> +              - mediatek,mt8186-wdt
>> +              - mediatek,mt8192-wdt
>> +              - mediatek,mt8195-wdt
> 
> The original binding only had 4 without a fallback. It's fine to add or
> change, but note the changes in the commit msg. Are all of these really
> each unique and not the same?
> 

Ok I will note the changes in the commit for v2. And... yes, they're really
each unique and not the same, as these are exposing a reset controller of
their own (as well with different platform data in the driver).

> 
>> +      - items:
>> +          - enum:
>> +              - mediatek,mt2701-wdt
>> +              - mediatek,mt6582-wdt
>> +              - mediatek,mt6797-wdt
>> +              - mediatek,mt7622-wdt
>> +              - mediatek,mt7623-wdt
>> +              - mediatek,mt7629-wdt
>> +              - mediatek,mt8516-wdt
>> +          - const: mediatek,mt6589-wdt
>> +
>> +  reg:
>> +    maxItems: 1
>> +
>> +  interrupts:
>> +    items:
>> +      - description: Watchdog pre-timeout (bark) interrupt
>> +
>> +  mediatek,disable-extrst:
>> +    description: Disable sending output reset signal
>> +    type: boolean
>> +
>> +  timeout-sec: true
> 
> Drop this and use 'unevaluatedProperties'.
> 

Noted. Will do for v2.

Thanks!
Angelo