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Date: Tue, 7 Apr 2026 14:24:31 -0500
From: Rob Herring <robh@kernel.org>
To: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@renesas.com>
Cc: Biju Das <biju.das.jz@bp.renesas.com>,
	Daniel Lezcano <daniel.lezcano@kernel.org>,
	Thomas Gleixner <tglx@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Magnus Damm <magnus.damm@gmail.com>,
	Michael Turquette <mturquette@baylibre.com>,
	Stephen Boyd <sboyd@kernel.org>, Lee Jones <lee@kernel.org>,
	Philipp Zabel <p.zabel@pengutronix.de>, linux-iio@vger.kernel.org,
	linux-renesas-soc@vger.kernel.org, linux-kernel@vger.kernel.org,
	devicetree@vger.kernel.org, linux-clk@vger.kernel.org
Subject: Re: [PATCH 08/11] dt-bindings: timer: renesas,rz-mtu3: document
 RZ/{T2H,N2H}
Message-ID: <20260407192431.GA3526777-robh@kernel.org>
References: <20260327192425.438263-1-cosmin-gabriel.tanislav.xa@renesas.com>
 <20260327192425.438263-9-cosmin-gabriel.tanislav.xa@renesas.com>
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In-Reply-To: <20260327192425.438263-9-cosmin-gabriel.tanislav.xa@renesas.com>

On Fri, Mar 27, 2026 at 09:24:22PM +0200, Cosmin Tanislav wrote:
> Compared to the previously supported SoCs, the Renesas RZ/T2H and RZ/N2H
> SoCs do not have a reset line.
> 
> Add a new conditional only matching RZ/T2H and RZ/N2H which disables the
> resets property.
> 
> Document RZ/T2H and RZ/N2H, and use the generic compatible as a
> fallback, as functionality is the same.
> 
> Signed-off-by: Cosmin Tanislav <cosmin-gabriel.tanislav.xa@renesas.com>
> ---
>  .../devicetree/bindings/timer/renesas,rz-mtu3.yaml  | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
> diff --git a/Documentation/devicetree/bindings/timer/renesas,rz-mtu3.yaml b/Documentation/devicetree/bindings/timer/renesas,rz-mtu3.yaml
> index 4623f6cddaf0..410951ca53f8 100644
> --- a/Documentation/devicetree/bindings/timer/renesas,rz-mtu3.yaml
> +++ b/Documentation/devicetree/bindings/timer/renesas,rz-mtu3.yaml
> @@ -112,6 +112,8 @@ properties:
>            - renesas,r9a07g043-mtu3  # RZ/{G2UL,Five}
>            - renesas,r9a07g044-mtu3  # RZ/G2{L,LC}
>            - renesas,r9a07g054-mtu3  # RZ/V2L
> +          - renesas,r9a09g077-mtu3  # RZ/T2H
> +          - renesas,r9a09g087-mtu3  # RZ/N2H
>        - const: renesas,rz-mtu3
>  
>    reg:
> @@ -245,6 +247,17 @@ allOf:
>        required:
>          - resets
>  
> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - renesas,r9a09g077-mtu3
> +              - renesas,r9a09g087-mtu3

This can just be an 'else' on the prior if/then schema. Really, these 2 
patches can be combined as the motivation for the 1st patch is the 2nd 
patch.

> +    then:
> +      properties:
> +        resets: false
> +
>  additionalProperties: false
>  
>  examples:
> -- 
> 2.53.0
>