netdev - Re: [PATCH v2 4/7] net: phy: add helper for mapping RGMII link speed to clock rate

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Message-ID: <ZwLm/1EtUZE+WsD1@lsv051416.swis.nl-cdc01.nxp.com>
Date: Sun, 6 Oct 2024 21:37:35 +0200
From: Jan Petrous <jan.petrous@....nxp.com>
To: Andrew Lunn <andrew@...n.ch>
Cc: "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Alexandre Torgue <alexandre.torgue@...s.st.com>,
	Jose Abreu <joabreu@...opsys.com>,
	Maxime Coquelin <mcoquelin.stm32@...il.com>,
	Vinod Koul <vkoul@...nel.org>,
	Heiner Kallweit <hkallweit1@...il.com>,
	Russell King <linux@...linux.org.uk>,
	Richard Cochran <richardcochran@...il.com>,
	Giuseppe Cavallaro <peppe.cavallaro@...com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-stm32@...md-mailman.stormreply.com" <linux-stm32@...md-mailman.stormreply.com>,
	"linux-arm-kernel@...ts.infradead.org" <linux-arm-kernel@...ts.infradead.org>,
	"linux-arm-msm@...r.kernel.org" <linux-arm-msm@...r.kernel.org>,
	dl-S32 <S32@....com>
Subject: Re: [PATCH v2 4/7] net: phy: add helper for mapping RGMII link speed
 to clock rate

On Mon, Aug 19, 2024 at 05:57:11PM +0200, Andrew Lunn wrote:
> On Sun, Aug 18, 2024 at 09:50:46PM +0000, Jan Petrous (OSS) wrote:
> > The helper rgmii_clock() implemented Russel's hint during stmmac
> > glue driver review:
> > 
> > ---
> > We seem to have multiple cases of very similar logic in lots of stmmac
> > platform drivers, and I think it's about time we said no more to this.
> > So, what I think we should do is as follows:
> > 
> > add the following helper - either in stmmac, or more generically
> > (phylib? - in which case its name will need changing.)
> 
> As Russell pointed out, this code appears a few times in the stmmac
> driver. Please include patches changing the other instances to use
> this helper.
> 
> It also looks like macb, and maybe xgene_enet_hw.c could use it as
> well.
> 

OK, for v3 added patches for the following possible users:
dwmac-sti, xgene_enet, macb, dwmac-starfive, dwmac-rk,
dwmac-intel-plat, dwmac-imx, dwmac-dwc-qos-eth.

BR.
/Jan