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Date: Thu, 7 Dec 2023 17:17:38 +0000
From: Daniel Golle <daniel@makrotopia.org>
To: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>,
	Rob Herring <robh+dt@kernel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
	Conor Dooley <conor+dt@kernel.org>,
	Michael Turquette <mturquette@baylibre.com>,
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	Chen-Yu Tsai <wenst@chromium.org>,
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Subject: Re: [PATCH v3 2/4] dt-bindings: clock: mediatek: add clock
 controllers of MT7988
Message-ID: <ZXH-Mq_DlW5Oodwt@makrotopia.org>
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 <64ee48fc-4f77-48cc-b235-c9fb2b10afc4@linaro.org>
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In-Reply-To: <64ee48fc-4f77-48cc-b235-c9fb2b10afc4@linaro.org>

On Thu, Dec 07, 2023 at 06:03:44PM +0100, Krzysztof Kozlowski wrote:
> On 06/12/2023 13:45, Daniel Golle wrote:
> >>> +properties:
> >>> +  compatible:
> >>> +    items:
> >>> +      - const: mediatek,mt7988-ethwarp
> >>> +      - const: syscon
> >>> +      - const: simple-mfd
> >>
> >> No, this is not a mfd, I say.
> >>
> >> Prove me wrong! :-)
> > 
> > https://github.com/dangowrt/linux/blob/mt7988-for-next/arch/arm64/boot/dts/mediatek/mt7988a.dtsi#L564
> > 
> > The 'simple-mfd' compatible is required to have the Linux
> > kernel probe drivers for sub-nodes -- several drivers will act on
> > the different aspects of the circuit exposed at this memory range.
> > From what I understand, this is the definition of a MFD.
> 
> We know what is MFD, so no need to teach us. We expect you to look at
> this. You do not have subnodes, so MFD is pointless. Showing DTSI means
> nothing except that you did not test your bindings.

Sorry, I simply wasn't aware that this is what I'm being asked for.
Is the device a MFD? - Yes it is.

In this case the child node would be a 'ti,syscon-reset' which doesn't
have YAML bindings. Should I include it as object without $ref or do I
need to convert ti,syscon-reset.txt to yaml first, and then reference
it as child node in the MFD?