linux-kernel - Re: [PATCH] dt-bindings: mfd: Add missing (unevaluated|additional)Properties on child nodes

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Date:   Thu, 25 Aug 2022 22:48:54 +0200
From:   Jernej Škrabec <jernej.skrabec@...il.com>
To:     Lee Jones <lee@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Chen-Yu Tsai <wens@...e.org>,
        Samuel Holland <samuel@...lland.org>,
        Charles Keepax <ckeepax@...nsource.cirrus.com>,
        Richard Fitzgerald <rf@...nsource.cirrus.com>,
        Tim Harvey <tharvey@...eworks.com>,
        Robert Jones <rjones@...eworks.com>,
        Chanwoo Choi <cw00.choi@...sung.com>,
        Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>,
        Heiko Stuebner <heiko@...ech.de>,
        Fabrice Gasnier <fabrice.gasnier@...s.st.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Maxime Ripard <mripard@...nel.org>,
        - <patches@...nsource.cirrus.com>,
        Steve Twiss <stwiss.opensource@...semi.com>,
        Chris Zhong <zyw@...k-chips.com>,
        Zhang Qing <zhangqing@...k-chips.com>,
        Alistair Francis <alistair@...stair23.me>,
        Amelie Delaunay <amelie.delaunay@...s.st.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Renner Berthing <kernel@...il.dk>,
        Rob Herring <robh@...nel.org>
Cc:     Krzysztof Kozlowski <krzk@...nel.org>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-sunxi@...ts.linux.dev,
        linux-kernel@...r.kernel.org, linux-rockchip@...ts.infradead.org,
        linux-stm32@...md-mailman.stormreply.com
Subject: Re: [PATCH] dt-bindings: mfd: Add missing (unevaluated|additional)Properties on child nodes

Dne torek, 23. avgust 2022 ob 16:56:35 CEST je Rob Herring napisal(a):
> In order to ensure only documented properties are present, node schemas
> must have unevaluatedProperties or additionalProperties set to false
> (typically).
> 
> Signed-off-by: Rob Herring <robh@...nel.org>
> ---
>  .../mfd/allwinner,sun6i-a31-prcm.yaml         | 40 +++++++++++++++++++
>  .../mfd/allwinner,sun8i-a23-prcm.yaml         | 10 +++++
>  .../bindings/mfd/cirrus,lochnagar.yaml        |  5 +++
>  .../devicetree/bindings/mfd/dlg,da9063.yaml   |  7 ++--
>  .../bindings/mfd/gateworks-gsc.yaml           |  5 ++-
>  .../bindings/mfd/maxim,max14577.yaml          |  1 +
>  .../bindings/mfd/maxim,max77843.yaml          |  1 +
>  .../bindings/mfd/rockchip,rk817.yaml          |  2 +
>  .../bindings/mfd/silergy,sy7636a.yaml         |  1 +
>  .../bindings/mfd/st,stm32-lptimer.yaml        |  4 ++
>  .../bindings/mfd/st,stm32-timers.yaml         |  3 ++
>  .../devicetree/bindings/mfd/st,stmfx.yaml     |  1 +
>  .../bindings/mfd/stericsson,ab8500.yaml       | 22 ++++++++++
>  .../devicetree/bindings/mfd/ti,tps65086.yaml  |  1 +
>  .../bindings/mfd/x-powers,axp152.yaml         |  1 +
>  15 files changed, 100 insertions(+), 4 deletions(-)
> 
> diff --git
> a/Documentation/devicetree/bindings/mfd/allwinner,sun6i-a31-prcm.yaml
> b/Documentation/devicetree/bindings/mfd/allwinner,sun6i-a31-prcm.yaml index
> d131759ccaf3..021d33cb3dd6 100644
> --- a/Documentation/devicetree/bindings/mfd/allwinner,sun6i-a31-prcm.yaml
> +++ b/Documentation/devicetree/bindings/mfd/allwinner,sun6i-a31-prcm.yaml
> @@ -22,6 +22,7 @@ properties:
>  patternProperties:
>    "^.*_(clk|rst)$":
>      type: object
> +    unevaluatedProperties: false
> 
>      properties:
>        compatible:
> @@ -34,6 +35,45 @@ patternProperties:
>            - fixed-factor-clock
> 
>      allOf:
> +      - if:
> +          properties:
> +            compatible:
> +              contains:
> +                const: fixed-factor-clock
> +
> +        then:
> +          $ref: /schemas/clock/fixed-factor-clock.yaml#
> +
> +      - if:
> +          properties:
> +            compatible:
> +              contains:
> +                const: allwinner,sun4i-a10-mod0-clk
> +
> +        then:
> +          properties:
> +            "#clock-cells":
> +              const: 0
> +
> +            # Already checked in the main schema
> +            compatible: true
> +
> +            clocks:
> +              maxItems: 2

Last time node with allwinner,sun4i-a10-mod0-clk compatible was used, it had 3 
clocks. See:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/tree/arch/
arm/boot/dts/sun4i-a10.dtsi?id=f18698e1c66338b902de386e4ad97b8b1b9d999d#n406

Once that fixed, allwinner,sun6i-a31-prcm.yaml and allwinner,sun8i-a23-
prcm.yaml  are:
Reviewed-by: Jernej Skrabec <jernej.skrabec@...il.com>

Best regards,
Jernej


> +
> +            clock-output-names:
> +              maxItems: 1
> +
> +            phandle: true
> +
> +          required:
> +            - "#clock-cells"
> +            - compatible
> +            - clocks
> +            - clock-output-names
> +
> +          additionalProperties: false
> +
>        - if:
>            properties:
>              compatible: