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From: Miquel Raynal <miquel.raynal@bootlin.com>
To: Krzysztof Kozlowski <krzk@kernel.org>
Cc: Paul Louvel <paul.louvel@bootlin.com>,
	 Borislav Petkov <bp@alien8.de>, Tony Luck <tony.luck@intel.com>,
	 Rob Herring <robh@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>,
	 linux-kernel@vger.kernel.org, linux-renesas-soc@vger.kernel.org,
	 linux-edac@vger.kernel.org, devicetree@vger.kernel.org,
	 Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
	 Herve Codina <herve.codina@bootlin.com>,
	Wolfram Sang <wsa+renesas@sang-engineering.com>
Subject: Re: [PATCH v4 1/3] dt-bindings: edac: cdns,ddr-edac: add Cadence DDR EDAC binding
Date: Tue, 29 Sep 2026 11:18:26 +0200	[thread overview]
Message-ID: <87cxtw5sbh.fsf@bootlin.com> (raw)
In-Reply-To: <20260929-brave-mouflon-of-enthusiasm-df7efe@quoll> (Krzysztof Kozlowski's message of "Tue, 29 Sep 2026 11:05:47 +0200")

Hi Krzysztof,

>> +properties:
>> +  compatible:
>> +    items:
>> +      - const: renesas,r9a06g032-ddr-edac # RZ/N1D
>> +      - const: cdns,ddr-edac
>
> I doubt this can be used standalone, so I am not sure what is the
> benefit of cnds compatible.

For now it seems that we are not using any Renesas specific
implementation detail. The driver actually matches the Cadence
compatible. But since we have no other user, and since we know this IP
is generic, we preferred to add a Renesas compatible to match the actual
implementation of the Cadence IP, in case we later figure out
differences with the original HDL. I thought this was the correct policy
to apply.

Thanks,
Miquèl


  reply	other threads:[~2026-09-29  9:18 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-09-28 10:45 [PATCH v4 0/3] Add Renesas RZ/N1x EDAC driver Paul Louvel
2026-09-28 10:45 ` [PATCH v4 1/3] dt-bindings: edac: cdns,ddr-edac: add Cadence DDR EDAC binding Paul Louvel
2026-09-29  9:05   ` Krzysztof Kozlowski
2026-09-29  9:18     ` Miquel Raynal [this message]
2026-09-30 10:29       ` Krzysztof Kozlowski
2026-09-28 10:45 ` [PATCH v4 2/3] EDAC/cadence: Add Cadence DDR EDAC driver Paul Louvel
2026-09-28 10:45 ` [PATCH v4 3/3] ARM: dts: renesas: r9a06g032: add EDAC node Paul Louvel

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