netdev - Re: [PATCH v2 06/11] net: stmmac: dwmac-stm32: clean the way to manage wol irqwake

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Date: Fri, 26 Apr 2024 17:40:21 +0200
From: Marek Vasut <marex@...x.de>
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>
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 v2 06/11] net: stmmac: dwmac-stm32: clean the way to
 manage wol irqwake

On 4/26/24 2:57 PM, Christophe Roullier wrote:
> On STM32 platforms it is no longer needed to use a dedicated wakeup to
> wake up system from CStop.

This really needs more clarification.

Why was the code needed before ? Maybe because it was used by some of 
the older STM32F4/F7/H7 SoCs ? Is it still needed by those SoCs ? Will 
this patch break those older SoCs ?

> This patch removes the dedicated wake up usage
> and clean the way to register the wake up irq.

[...]