Re: [PATCH v3 2/3] dt-bindings: mfd: syscon: Drop custom select for older dtschema

From: Rob Herring <robh@kernel.org>
To: Conor Dooley <conor@kernel.org>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>,
	Lee Jones <lee@kernel.org>,
	Krzysztof Kozlowski <krzk+dt@kernel.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Matthias Brugger <matthias.bgg@gmail.com>,
	AngeloGioacchino Del Regno
	<angelogioacchino.delregno@collabora.com>,
	Jacky Huang <ychuang3@nuvoton.com>,
	Shan-Chun Hung <schung@nuvoton.com>,
	Geert Uytterhoeven <geert+renesas@glider.be>,
	Magnus Damm <magnus.damm@gmail.com>,
	Heiko Stuebner <heiko@sntech.de>,
	Aaro Koskinen <aaro.koskinen@iki.fi>,
	Andreas Kemnade <andreas@kemnade.info>,
	Kevin Hilman <khilman@baylibre.com>,
	Roger Quadros <rogerq@kernel.org>,
	Tony Lindgren <tony@atomide.com>,
	devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-mediatek@lists.infradead.org,
	linux-renesas-soc@vger.kernel.org,
	linux-rockchip@lists.infradead.org, linux-omap@vger.kernel.org
Subject: Re: [PATCH v3 2/3] dt-bindings: mfd: syscon: Drop custom select for older dtschema
Date: Thu, 11 Jun 2026 11:31:35 -0500	[thread overview]
Message-ID: <20260611163135.GA2913196-robh@kernel.org> (raw)
In-Reply-To: <20260609-vertical-antarctic-e18a7ec91685@spud>

On Tue, Jun 09, 2026 at 05:28:21PM +0100, Conor Dooley wrote:
> On Mon, Jun 08, 2026 at 10:44:25PM +0200, Krzysztof Kozlowski wrote:
> > Older dtschema <2024.02 required custom select to avoid applying this
> > binding to anything having "syscon" compatible.  That's not the case
> > anymore and this additional select has two headaches:
> > 
> > 1. Duplicates all the compatibles listed in the schema.
> > 
> > 2. Is error-prone, because it requires contributor to add the compatible
> >    in two places, otherwise the schema will be silently ignored.
> >    The select list already misses mentioning compatibles:
> >    mediatek,mt8365-infracfg-nao and renesas,r9a08g046-lvds-cmn (with the
> >    latter being reverted for different reasons).
> > 
> > This requires bumping minimum dtschema requirement to v2024.04, which
> > feels old enough to be a safe requirement.
> 
> I agree, seems reasonable enough given it's a jump from 2023.09 and not
> some large jump.
> The diff is nice too!
> I assume Rob will be taking it, but just in case..
> Acked-by: Conor Dooley <conor.dooley@microchip.com>

I expect Lee to take this. I suspect syscon.yaml has other conflicting 
changes.

Rob