netdev - Re: [PATCH 0/2] ARM: dts: am335x-evm/evmsk: Fix PHY mode for ethernet

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Message-ID: <20190218162613.GH15711@atomide.com>
Date:   Mon, 18 Feb 2019 08:26:13 -0800
From:   Tony Lindgren <tony@...mide.com>
To:     Peter Ujfalusi <peter.ujfalusi@...com>
Cc:     bcousson@...libre.com, linux-omap@...r.kernel.org,
        devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        nsekhar@...com, grygorii.strashko@...com, vkoul@...nel.org,
        netdev@...r.kernel.org, f.fainelli@...il.com,
        marc.w.gonzalez@...e.fr, niklas.cassel@...aro.org
Subject: Re: [PATCH 0/2] ARM: dts: am335x-evm/evmsk: Fix PHY mode for ethernet

* Peter Ujfalusi <peter.ujfalusi@...com> [190218 16:22]:
> 
> 
> On 18/02/2019 16.44, Tony Lindgren wrote:
> > * Peter Ujfalusi <peter.ujfalusi@...com> [190218 14:36]:
> >> Hi,
> >>
> >> cd28d1d6e52e: ("net: phy: at803x: Disable phy delay for RGMII mode") broke the
> >> ethernet networking on evmsk (and most likely on the evm as well):
> >> https://patchwork.ozlabs.org/patch/1028527/
> >>
> >> v1 patch to fix the situation:
> >> https://patchwork.ozlabs.org/patch/1040617/
> >>
> >> It turned out that the at803x driver is actually broken and need to be fixed
> >> along with the DT data.
> >>
> >> The following series is proposed to fix the driver:
> >> https://patchwork.ozlabs.org/project/netdev/list/?series=92611
> >>
> >> but the PHT mode needs to be switched to rgmii-id from rgmii-txid:
> >> The rx delay is enabled by default and the driver never disabled it so when
> >> asking rgmii-txid it actually got rgmii-id.
> >>
> >> The patch can be backported to stable, I have tested that it is not causing
> >> regression with the old, broken driver.
> > 
> > Can the dts changes be merged before the driver changes or
> > does it cause the phy to stop working?
> 
> The phy is not working atm, but this change will not cause regression
> even if it is merged first.

OK so sounds like these are OK to wait for v5.1 merge window
then as the dts changes alone won't fix anything?

Regards,

Tony