linux-kernel - Re: [PATCH v8 1/7] dt-bindings: memory: factorise LPDDR props into SDRAM props

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Message-ID: <275742a1-de32-483a-b608-8f5b28e282b9@kernel.org>
Date: Thu, 23 Oct 2025 15:12:23 +0200
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Clément Le Goffic <legoffic.clement@...il.com>,
 Rob Herring <robh@...nel.org>, Conor Dooley <conor+dt@...nel.org>,
 Julius Werner <jwerner@...omium.org>,
 Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Maxime Coquelin <mcoquelin.stm32@...il.com>,
 Alexandre Torgue <alexandre.torgue@...s.st.com>
Cc: linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
 linux-stm32@...md-mailman.stormreply.com,
 linux-arm-kernel@...ts.infradead.org,
 Clément Le Goffic <clement.legoffic@...s.st.com>
Subject: Re: [PATCH v8 1/7] dt-bindings: memory: factorise LPDDR props into
 SDRAM props

On 30/09/2025 10:46, Clément Le Goffic wrote:
> From: Clément Le Goffic <clement.legoffic@...s.st.com>
> 
> LPDDR and DDR bindings are SDRAM types and are likely to share the same
> properties (at least for density, io-width and reg).
> To avoid bindings duplication, factorise the properties.
> 
> The compatible description has been updated because the MR (Mode
> registers) used to get manufacturer ID and revision ID are not present
> in case of DDR.
> Those information should be in a SPD (Serial Presence Detect) EEPROM in
> case of DIMM module or are known in case of soldered memory chips as
> they are in the datasheet of the memory chips.
> 
> Signed-off-by: Clément Le Goffic <clement.legoffic@...s.st.com>
> Signed-off-by: Clément Le Goffic <legoffic.clement@...il.com>

Wearing DT hat:

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>

Best regards,
Krzysztof