From: Richard Leitner <richard.leitner@skidata.com>
To: Marek Vasut <marex@denx.de>
Cc: Andrew Lunn <andrew@lunn.ch>, <netdev@vger.kernel.org>,
Christoph Niedermaier <cniedermaier@dh-electronics.com>,
"David S . Miller" <davem@davemloft.net>,
NXP Linux Team <linux-imx@nxp.com>,
Shawn Guo <shawnguo@kernel.org>
Subject: Re: [PATCH] net: fec: Fix PHY init after phy_reset_after_clk_enable()
Date: Fri, 4 Sep 2020 21:02:28 +0200 [thread overview]
Message-ID: <20200904190228.GG81961@pcleri> (raw)
In-Reply-To: <b305a989-d9c3-f02a-6935-81c6bcc084c5@denx.de>
On Fri, Sep 04, 2020 at 05:26:14PM +0200, Marek Vasut wrote:
> On 9/4/20 4:02 PM, Andrew Lunn wrote:
> > On Fri, Sep 04, 2020 at 12:45:44AM +0200, Marek Vasut wrote:
> >> On 9/4/20 12:08 AM, Andrew Lunn wrote:
> >>>>> b4 am 20200903043947.3272453-1-f.fainelli@gmail.com
> >>>>
> >>>> That might be a fix for the long run, but I doubt there's any chance to
> >>>> backport it all to stable, is there ?
> >>>
> >>> No. For stable we need something simpler.
> >>
> >> Like this patch ?
> >
> > Yes.
> >
> > But i would like to see a Tested-By: or similar from Richard
> > Leitner. Why does the current code work for his system? Does your
> > change break it?
>
> I have the IRQ line connected and described in DT. The reset clears the
> IRQ settings done by the SMSC PHY driver. The PHY works fine if I use
> polling, because then even if no IRQs are generated by the PHY, the PHY
> framework reads the status updates from the PHY periodically and the
> default settings of the PHY somehow work (even if they are slightly
> incorrect). I suspect that's how Richard had it working.
I have different PHYs on different PCBs in use, but IIRC none of them
has the IRQ line defined in the DT.
I will take a look at it, test your patch and give feedback ASAP.
Unfortunately it's unlikely that this will be before monday 😕
Hope that's ok.
regards;rl
next prev parent reply other threads:[~2020-09-04 19:09 UTC|newest]
Thread overview: 16+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-03 20:27 [PATCH] net: fec: Fix PHY init after phy_reset_after_clk_enable() Marek Vasut
2020-09-03 21:00 ` Andrew Lunn
2020-09-03 21:36 ` Marek Vasut
2020-09-03 21:53 ` Andrew Lunn
2020-09-03 22:03 ` Marek Vasut
2020-09-03 22:08 ` Andrew Lunn
2020-09-03 22:45 ` Marek Vasut
2020-09-04 14:02 ` Andrew Lunn
2020-09-04 15:26 ` Marek Vasut
2020-09-04 19:02 ` Richard Leitner [this message]
2020-09-04 19:23 ` Marek Vasut
2020-09-09 8:38 ` Richard Leitner
2020-09-26 18:52 ` Marek Vasut
2020-09-28 13:03 ` Richard Leitner
2020-10-06 9:15 ` Marek Vasut
2020-09-09 12:24 ` Andrew Lunn
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