Hi Geert,
> -----Original Message-----
> From: Geert Uytterhoeven <geert@xxxxxxxxxxxxxx>
> Sent: 23 July 2021 17:01
> To: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
> Cc: Rob Herring <robh+dt@xxxxxxxxxx>; Magnus Damm <magnus.damm@xxxxxxxxx>;
> Linux-Renesas <linux-renesas-soc@xxxxxxxxxxxxxxx>; open list:OPEN FIRMWARE
> AND FLATTENED DEVICE TREE BINDINGS <devicetree@xxxxxxxxxxxxxxx>; Chris
> Paterson <Chris.Paterson2@xxxxxxxxxxx>; Prabhakar Mahadev Lad
> <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx>
> Subject: Re: [PATCH] arm64: dts: renesas: rzg2: Add internal rx delay
>
> Hi Biju,
>
> On Fri, Jul 23, 2021 at 5:52 PM Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
> wrote:
> > > Subject: Re: [PATCH] arm64: dts: renesas: rzg2: Add internal rx
> > > delay On Wed, Jul 21, 2021 at 8:06 PM Biju Das
> > > <biju.das.jz@xxxxxxxxxxxxxx>
> > > wrote:
> > > > Hihope boards use Realtek PHY. From the very beginning it use only
> > > > tx delays. However the phy driver commit bbc4d71d63549bcd003
> > > > ("net: phy: realtek: fix rtl8211e rx/tx delay config") introduced
> > > > NFS mount failure. Now it needs rx delay inaddition to tx delay
> > > > for NFS mount to work. This patch fixes NFS mount failure issue by
> > > > adding MAC internal rx delay.
> > > >
> > > > Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx>
> > >
> > > Reviewed-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> i.e. will
> > > queue in renesas-devel for v5.15.
> > >
> > > Do you want a Fixes: tag?
> >
> > It is a tricky situation. The phy patch is introduced in 5.9 and is
> backported to 5.8.
> > But we don't have MaC internal delays on those kernels. So Fixes for
> > 5.10+ will be ok I guess, So that at least this fix will land on cip
> 5.10 kernel.
>
> Fixes: bbc4d71d63549bcd ("net: phy: realtek: fix rtl8211e rx/tx delay
> config")
>
> Then the stable people are at least aware that backporting the PHY commit
> can cause issues.
OK.
> So after it has hit upstream, you can send the patch to stable with the
> following added:
>
> Cc: stable@xxxxxxxxxxxxxxx # 5.10.x: a6f51f2efa742df0 ravb: Add support
> for explicit internal clock delay configuration
>
> I hope I got the syntax right. And there may be dependencies to backport,
> too.
>
> As this doesn't fix an issue introduced in v5.13 or v5.14-rc1, I'll queue
> this for v5.15. CIP can still take it.
Thank you. Will post the patch to stable once it hit mainline.
Regards,
Biju
>
> Gr{oetje,eeting}s,
>
> Geert
>
> --
> Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-
> m68k.org
>
> In personal conversations with technical people, I call myself a hacker.
> But when I'm talking to journalists I just say "programmer" or something
> like that.
> -- Linus Torvalds
