linux-kernel - Re: [PATCH net-next v5 3/3] net: stmmac: Add DWMAC glue layer for Renesas GBETH

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Message-ID: <CA+V-a8uho8xKikEmSQeDM4Qe5y0jaZfYE3vNc8qehb_NLHGJ6g@mail.gmail.com>
Date: Mon, 14 Apr 2025 17:56:15 +0100
From: "Lad, Prabhakar" <prabhakar.csengg@...il.com>
To: Paul Barker <paul.barker.ct@...renesas.com>
Cc: Andrew Lunn <andrew+netdev@...n.ch>, "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>, 
	Maxime Coquelin <mcoquelin.stm32@...il.com>, Alexandre Torgue <alexandre.torgue@...s.st.com>, 
	Richard Cochran <richardcochran@...il.com>, Philipp Zabel <p.zabel@...gutronix.de>, 
	Geert Uytterhoeven <geert+renesas@...der.be>, Magnus Damm <magnus.damm@...il.com>, 
	"Russell King (Oracle)" <rmk+kernel@...linux.org.uk>, Giuseppe Cavallaro <peppe.cavallaro@...com>, 
	Jose Abreu <joabreu@...opsys.com>, netdev@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-stm32@...md-mailman.stormreply.com, 
	linux-arm-kernel@...ts.infradead.org, linux-renesas-soc@...r.kernel.org, 
	Biju Das <biju.das.jz@...renesas.com>, 
	Fabrizio Castro <fabrizio.castro.jz@...esas.com>, 
	Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
Subject: Re: [PATCH net-next v5 3/3] net: stmmac: Add DWMAC glue layer for
 Renesas GBETH

Hi Paul,

On Mon, Apr 14, 2025 at 2:13 PM Paul Barker
<paul.barker.ct@...renesas.com> wrote:
>
> Hi Prabhakar,
>
> On 07/04/2025 13:03, Prabhakar wrote:
> > From: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
> >
> > Add the DWMAC glue layer for the GBETH IP found in the Renesas RZ/V2H(P)
> > SoC.
> >
> > Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@...renesas.com>
>
> [snip]
>
> > diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c
> > new file mode 100644
> > index 000000000000..a0f7cacea810
> > --- /dev/null
> > +++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-renesas-gbeth.c
> > @@ -0,0 +1,165 @@
> > +// SPDX-License-Identifier: GPL-2.0+
> > +/*
> > + * dwmac-renesas-gbeth.c - DWMAC Specific Glue layer for Renesas GBETH
> > + *
> > + * The Rx and Tx clocks are supplied as follows for the GBETH IP.
> > + *
> > + *                         Rx / Tx
> > + *   -------+------------- on / off -------
> > + *          |
> > + *          |            Rx-180 / Tx-180
> > + *          +---- not ---- on / off -------
> > + *
> > + * Copyright (C) 2025 Renesas Electronics Corporation
> > + */
> > +
> > +#include <linux/clk.h>
> > +#include <linux/device.h>
> > +#include <linux/module.h>
> > +#include <linux/platform_device.h>
> > +#include <linux/reset.h>
> > +
> > +#include "dwmac4.h"
>
> I'm looking at this while working on RZ/T2H Ethernet support, clangd
> says inclusion of dwmac4.h is not needed here and compilation succeeds
> with the include removed.
>
Agreed, I will drop this.

Cheers,
Prabhakar