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Date: Mon, 25 Mar 2024 11:27:45 +0100
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Christophe Roullier <christophe.roullier@...s.st.com>,
 "David S . Miller" <davem@...emloft.net>, Eric Dumazet
 <edumazet@...gle.com>, Jakub Kicinski <kuba@...nel.org>,
 Paolo Abeni <pabeni@...hat.com>, Rob Herring <robh+dt@...nel.org>,
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
 Conor Dooley <conor+dt@...nel.org>,
 Maxime Coquelin <mcoquelin.stm32@...il.com>,
 Alexandre Torgue <alexandre.torgue@...s.st.com>,
 Richard Cochran <richardcochran@...il.com>, Jose Abreu
 <joabreu@...opsys.com>, Liam Girdwood <lgirdwood@...il.com>,
 Mark Brown <broonie@...nel.org>, Marek Vasut <marex@...x.de>
Cc: netdev@...r.kernel.org, devicetree@...r.kernel.org,
 linux-stm32@...md-mailman.stormreply.com,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 2/2] dt-bindings: net: dwmac: Document STM32 property
 st,ext-phyclk

On 25/03/2024 10:42, Christophe Roullier wrote:
> The Linux kernel dwmac-stm32 driver currently supports three DT
> properties used to configure whether PHY clock are generated by
> the MAC or supplied to the MAC from the PHY.
> 
> Originally there were two properties, st,eth-clk-sel and
> st,eth-ref-clk-sel, each used to configure MAC clocking in
> different bus mode and for different MAC clock frequency.
> Since it is possible to determine the MAC 'eth-ck' clock
> frequency from the clock subsystem and PHY bus mode from
> the 'phy-mode' property, two disparate DT properties are
> no longer required to configure MAC clocking.
> 
> Linux kernel commit
> 1bb694e20839 ("net: ethernet: stmmac: simplify phy modes management for stm32")

Don't wrap. Word commit must be followed by the commit. Syntax is:
commit deadbeef ("foo
bar").

> introduced a third, unified, property st,ext-phyclk. This property
> covers both use cases of st,eth-clk-sel and st,eth-ref-clk-sel DT
> properties, as well as a new use case for 25 MHz clock generated
> by the MAC.
> 

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

Best regards,
Krzysztof


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