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

[Biju Das]

Hi Russell,

> -----Original Message-----
> From: Biju Das
> Sent: 21 April 2025 20:06
> Subject: RE: [PATCH net-next v5 3/3] net: stmmac: Add DWMAC glue layer for Renesas GBETH
> 
> Hi Russell,
> 
> > -----Original Message-----
> > From: Russell King <linux at armlinux.org.uk>
> > Sent: 21 April 2025 20:00
> > Subject: Re: [PATCH net-next v5 3/3] net: stmmac: Add DWMAC glue layer
> > for Renesas GBETH
> >
> > On Mon, Apr 21, 2025 at 01:45:50PM +0000, Biju Das wrote:
> > > Hi All,
> > > FYI, On RZ/G3E, for STR to work with mainline, we need to reinitialize the PHY.
> >
> > Which "mainline" are you using?
> >
> > Reading your emails, I suspect v6.14 rather than something post-dating
> > v6.15-rc1, since your latest email suggests that the PHY driver's
> > ->resume method is not being called early in stmmac's resume. However,
> > commits 367f1854d442 and ef43e5132895 made this happen, which were
> > merged during the merge window, and are thus in v6.15-rc1.
> 
> I am using Linux version 6.15.0-rc2-next-20250417 + renesas_defconfig with CONFIG_PROVE_LOCKING
> enabled.

For me, it looks like issue related to timing, see[1] for details

[1] https://lore.kernel.org/all/TY3PR01MB1134690619EC6CADD07CD2DE186B82@TY3PR01MB11346.jpnprd01.prod.outlook.com/

Please let me know, if you have any patch that I can try out to fix the random timing issue.

Cheers,
Biju