linux-kernel - Re: [PATCH v2 1/4] dt-bindings: watchdog: mediatek: Convert binding to YAML

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Date:   Mon, 18 Jul 2022 18:04:25 +0200
From:   Matthias Brugger <matthias.bgg@...il.com>
To:     Allen-KH Cheng <allen-kh.cheng@...iatek.com>,
        Wim Van Sebroeck <wim@...ux-watchdog.org>,
        Guenter Roeck <linux@...ck-us.net>,
        Krzysztof Kozlowski <krzk+dt@...nel.org>,
        Rob Herring <robh+dt@...nel.org>, nfraprado@...labora.com
Cc:     Project_Global_Chrome_Upstream_Group@...iatek.com,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, linux-mediatek@...ts.infradead.org,
        Chen-Yu Tsai <wenst@...omium.org>
Subject: Re: [PATCH v2 1/4] dt-bindings: watchdog: mediatek: Convert binding
 to YAML



On 14/07/2022 14:50, Allen-KH Cheng wrote:
> Convert Mediatek watchdog devicetree binding to YAML.
> 

You are also fixing the fallback compatible here.

> Signed-off-by: Allen-KH Cheng <allen-kh.cheng@...iatek.com>
> ---
>   .../bindings/watchdog/mediatek,wdt.yaml       | 64 +++++++++++++++++++
>   .../devicetree/bindings/watchdog/mtk-wdt.txt  | 42 ------------
>   2 files changed, 64 insertions(+), 42 deletions(-)
>   create mode 100644 Documentation/devicetree/bindings/watchdog/mediatek,wdt.yaml
>   delete mode 100644 Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
> 
> diff --git a/Documentation/devicetree/bindings/watchdog/mediatek,wdt.yaml b/Documentation/devicetree/bindings/watchdog/mediatek,wdt.yaml
> new file mode 100644
> index 000000000000..cb90d89b9f5d
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/watchdog/mediatek,wdt.yaml
> @@ -0,0 +1,64 @@
> +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
> +%YAML 1.2
> +---
> +$id: http://devicetree.org/schemas/watchdog/mediatek,wdt.yaml#
> +$schema: http://devicetree.org/meta-schemas/core.yaml#
> +
> +title: MediatTek SoCs Watchdog timer
> +
> +maintainers:
> +  - Runyang Chen <runyang.chen@...iatek.com>
> +
> +allOf:
> +  - $ref: "watchdog.yaml#"
> +
> +properties:
> +  compatible:
> +    oneOf:
> +      - enum:
> +          - mediatek,mt2712-wdt
> +          - mediatek,mt6589-wdt
> +          - mediatek,mt7986-wdt
> +          - mediatek,mt8183-wdt
> +          - mediatek,mt8186-wdt
> +          - mediatek,mt8192-wdt
> +          - mediatek,mt8195-wdt
> +      - items:
> +          - enum:
> +              - mediatek,mt2701-wdt

missing mt6582-wdt, mediatek,mt7623-wdt and more.
I'd advise split this up in two patches. One fixing the fallback compatible and 
the second one converting to yaml (or the other way round). In any case make 
sure you have all compatibles in the end.

Regards,
Matthias

> +              - mediatek,mt6797-wdt
> +              - mediatek,mt7622-wdt
> +              - mediatek,mt8516-wdt
> +              - mediatek,mt8173-wdt
> +          - const: mediatek,mt6589-wdt
> +
> +  reg:
> +    maxItems: 1
> +
> +  interrupts:
> +    maxItems: 1
> +
> +  '#reset-cells':
> +    const: 1
> +
> +  mediatek,disable-extrst:
> +    type: boolean
> +    description: disable send output reset signal
> +
> +required:
> +  - compatible
> +  - reg
> +
> +unevaluatedProperties: false
> +
> +examples:
> +  - |
> +
> +    watchdog@...07000 {
> +        compatible = "mediatek,mt8186-wdt";
> +        reg = <0x10007000 0x100>;
> +        mediatek,disable-extrst;
> +        #reset-cells = <1>;
> +    };
> +
> +...
> diff --git a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt b/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
> deleted file mode 100644
> index 762c62e428ef..000000000000
> --- a/Documentation/devicetree/bindings/watchdog/mtk-wdt.txt
> +++ /dev/null
> @@ -1,42 +0,0 @@
> -Mediatek SoCs Watchdog timer
> -
> -The watchdog supports a pre-timeout interrupt that fires timeout-sec/2
> -before the expiry.
> -
> -Required properties:
> -
> -- compatible should contain:
> -	"mediatek,mt2701-wdt", "mediatek,mt6589-wdt": for MT2701
> -	"mediatek,mt2712-wdt": for MT2712
> -	"mediatek,mt6582-wdt", "mediatek,mt6589-wdt": for MT6582
> -	"mediatek,mt6589-wdt": for MT6589
> -	"mediatek,mt6797-wdt", "mediatek,mt6589-wdt": for MT6797
> -	"mediatek,mt7622-wdt", "mediatek,mt6589-wdt": for MT7622
> -	"mediatek,mt7623-wdt", "mediatek,mt6589-wdt": for MT7623
> -	"mediatek,mt7629-wdt", "mediatek,mt6589-wdt": for MT7629
> -	"mediatek,mt7986-wdt", "mediatek,mt6589-wdt": for MT7986
> -	"mediatek,mt8183-wdt": for MT8183
> -	"mediatek,mt8186-wdt", "mediatek,mt6589-wdt": for MT8186
> -	"mediatek,mt8516-wdt", "mediatek,mt6589-wdt": for MT8516
> -	"mediatek,mt8192-wdt": for MT8192
> -	"mediatek,mt8195-wdt", "mediatek,mt6589-wdt": for MT8195
> -
> -- reg : Specifies base physical address and size of the registers.
> -
> -Optional properties:
> -- mediatek,disable-extrst: disable send output reset signal
> -- interrupts: Watchdog pre-timeout (bark) interrupt.
> -- timeout-sec: contains the watchdog timeout in seconds.
> -- #reset-cells: Should be 1.
> -
> -Example:
> -
> -watchdog: watchdog@...07000 {
> -	compatible = "mediatek,mt8183-wdt",
> -		     "mediatek,mt6589-wdt";
> -	mediatek,disable-extrst;
> -	reg = <0 0x10007000 0 0x100>;
> -	interrupts = <GIC_SPI 139 IRQ_TYPE_NONE>;
> -	timeout-sec = <10>;
> -	#reset-cells = <1>;
> -};