From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from perceval.ideasonboard.com (perceval.ideasonboard.com [213.167.242.64]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id AF946203D46; Mon, 16 Dec 2024 10:54:19 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=213.167.242.64 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734346461; cv=none; b=kj3CD1f5ngeXfeIS7Menb6jnp0bKxleRpg5abOKlcvQ9Ta9p20lqmzBaus/6zR+/KI/EDV6LPhJpGBd1O/y4lyZ8Tiu4LMLOAmVPvEcaj/HUNUkyGOPCkk6qoe+9PWheJfYyh4rR2FnUpCTJSHUwbRaoTcYUFLGYkXG7JTMixiY= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1734346461; c=relaxed/simple; bh=TUDOOkR4ma+j4NaYSDo4kcdcwKgNiIe6BH+k9QZpk80=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=QGHsp5QdaDShYdeChnFxFA2DVwSCv7gGHRokktYWze/ugt5N3/41+N0clMNUkd40Eg/P7Bh+NEO/ZCl0C0xQl6/h+50lvECP845y7pbeSFnHbAlJooNAd1A8GOTBV/90YHFxRdp6RnjqpOSgSHvXmvlKd6/7iicKceOD1EJRLF0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com; spf=pass smtp.mailfrom=ideasonboard.com; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b=Gb8Mw03A; arc=none smtp.client-ip=213.167.242.64 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=ideasonboard.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=ideasonboard.com header.i=@ideasonboard.com header.b="Gb8Mw03A" Received: from [192.168.88.20] (91-157-155-49.elisa-laajakaista.fi [91.157.155.49]) by perceval.ideasonboard.com (Postfix) with ESMTPSA id D0A9D22F; Mon, 16 Dec 2024 11:53:37 +0100 (CET) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=ideasonboard.com; s=mail; t=1734346419; bh=TUDOOkR4ma+j4NaYSDo4kcdcwKgNiIe6BH+k9QZpk80=; h=Date:Subject:To:Cc:References:From:In-Reply-To:From; b=Gb8Mw03AtapCk2dw+yfTfR0+DC5SqHVcHP99imfRW06S45s6FJWRV/gXsJvatLNqQ /0tgTog7nueryp+oenBlorkBhTKQhIU1qe9ZiKUqBpyeOt29H+EshJTuE0AaX8VFap 5PCt8tgvqsWU9kqiGN8DmE4C7Kxcg8+VBQwxXj1M= Message-ID: Date: Mon, 16 Dec 2024 12:54:11 +0200 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v4 3/7] dt-bindings: display: renesas,du: Add missing maxItems To: Krzysztof Kozlowski , Laurent Pinchart Cc: Kieran Bingham , Andrzej Hajda , Neil Armstrong , Robert Foss , Jonas Karlman , Jernej Skrabec , David Airlie , Simona Vetter , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Geert Uytterhoeven , Magnus Damm , Michael Turquette , Stephen Boyd , LUU HOAI , Jagan Teki , Sam Ravnborg , Biju Das , dri-devel@lists.freedesktop.org, linux-renesas-soc@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, linux-clk@vger.kernel.org, Tomi Valkeinen References: <20241213-rcar-gh-dsi-v4-0-f8e41425207b@ideasonboard.com> <20241213-rcar-gh-dsi-v4-3-f8e41425207b@ideasonboard.com> <20241216083239.GC32204@pendragon.ideasonboard.com> <12d157af-e309-4c8d-9c14-bd0e9da8194d@kernel.org> Content-Language: en-US From: Tomi Valkeinen Autocrypt: addr=tomi.valkeinen@ideasonboard.com; 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charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi, On 16/12/2024 12:42, Krzysztof Kozlowski wrote: > On 16/12/2024 09:32, Laurent Pinchart wrote: >> Hi Krzysztof, >> >> On Mon, Dec 16, 2024 at 08:58:49AM +0100, Krzysztof Kozlowski wrote: >>> On Fri, Dec 13, 2024 at 04:02:59PM +0200, Tomi Valkeinen wrote: >>>> From: Tomi Valkeinen >>>> >>>> The binding is missing maxItems for all renesas,cmms and renesas,vsps >>>> properties. As the amount of cmms or vsps is always a fixed amount, set >>>> the maxItems to match the minItems. >>>> >>>> Signed-off-by: Tomi Valkeinen >>>> --- >>>> Documentation/devicetree/bindings/display/renesas,du.yaml | 10 ++++++++++ >>>> 1 file changed, 10 insertions(+) >>> >>> The top level property should define widest constraints as well. >> >> I'm curious, why is that ? I understand why a top-level default would >> make sense when it's optionally overridden by model-specific values, but >> in this case there's no such default. Every SoC has its own fixed value. > > Because otherwise top level property does not have proper description > and we expect properties to be defined at top-level. As we don't know what is the maximum number of items for future SoCs, should we then use a number that'll surely be big enough? At the moment the max cmms seems to be 4, so maybe 16 would be safely big enough. But is it then better to be extra safe, and use, say, maxItems 256? Tomi