From: Andrew Lunn <andrew@lunn.ch>
To: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: "Roger Quadros" <rogerq@ti.com>,
"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
grant.likely@linaro.org, robh+dt@kernel.org,
devicetree@vger.kernel.org, f.fainelli@gmail.com,
netdev@vger.kernel.org, frowand.list@gmail.com,
pawel.moll@arm.com, mark.rutland@arm.com,
ijc+devicetree@hellion.org.uk, galak@codeaurora.org,
linux-kernel@vger.kernel.org,
"Linus Walleij" <linus.walleij@linaro.org>
Subject: Re: [PATCH RFT 1/2] phylib: add device reset GPIO support
Date: Fri, 13 May 2016 22:44:36 +0200 [thread overview]
Message-ID: <20160513204436.GC7600@lunn.ch> (raw)
In-Reply-To: <b9bcc192-f97b-304e-77b2-894c4528ddb6@cogentembedded.com>
> >Another issue is that on some boards we have one reset line tied to
> >multiple PHYs.How do we prevent multiple resets being taking place when each of
> >the PHYs are registered?
>
> My patch just doesn't address this case -- it's about the
> individual resets only.
This actually needs to be addresses a layer above. What you have is a
bus reset, not a device reset. So the gpio line is associated to the
mdio bus, not a PHY. Either your MDIO driver needs to handle the gpio
line, or in __mdio_register(), before it starts looking at the
children.
Andrew
next prev parent reply other threads:[~2016-05-13 20:44 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-04-08 22:21 [PATCH RFT 0/2] Teach phylib hard-resetting devices Sergei Shtylyov
2016-04-08 22:22 ` [PATCH RFT 1/2] phylib: add device reset GPIO support Sergei Shtylyov
2016-04-11 19:25 ` Rob Herring
2016-04-11 19:28 ` Sergei Shtylyov
2016-04-11 22:46 ` Rob Herring
[not found] ` <2811962.eGX2i5RJbZ@wasted.cogentembedded.com>
[not found] ` <20160411022802.GB4307@lunn.ch>
[not found] ` <570BE1C5.70502@cogentembedded.com>
[not found] ` <20160411181904.GB29709@lunn.ch>
2016-04-11 18:39 ` [PATCH RFT 2/2] macb: kill PHY reset code Sergei Shtylyov
[not found] ` <570BEF46.7060105-M4DtvfQ/ZS1MRgGoP+s0PdBPR1lH4CV8@public.gmane.org>
2016-04-11 18:51 ` Andrew Lunn
[not found] ` <20160411185115.GA30623-g2DYL2Zd6BY@public.gmane.org>
2016-04-11 19:01 ` Sergei Shtylyov
2016-04-12 9:23 ` Nicolas Ferre
2016-04-28 22:12 ` [PATCH RFT 1/2] phylib: add device reset GPIO support Sergei Shtylyov
2016-05-03 17:03 ` Rob Herring
2016-05-10 18:32 ` Florian Fainelli
[not found] ` <5732294F.3060606-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>
2016-05-10 19:11 ` Sergei Shtylyov
[not found] ` <5732327A.6080203-M4DtvfQ/ZS1MRgGoP+s0PdBPR1lH4CV8@public.gmane.org>
2016-05-10 19:13 ` Florian Fainelli
[not found] ` <3641492.klKRrvS8tr-gHKXc3Y1Z8zGSmamagVegGFoWSdPRAKMAL8bYrjMMd8@public.gmane.org>
2016-05-12 18:42 ` Uwe Kleine-König
2016-05-12 21:35 ` Sergei Shtylyov
2016-05-13 4:06 ` Andrew Lunn
2016-05-13 21:16 ` Sergei Shtylyov
2016-05-13 7:06 ` Uwe Kleine-König
2016-05-13 21:49 ` Sergei Shtylyov
2016-05-13 19:18 ` Sergei Shtylyov
2016-05-14 21:14 ` Sergei Shtylyov
2016-05-13 9:07 ` Roger Quadros
2016-05-13 19:36 ` Sergei Shtylyov
2016-05-13 20:44 ` Andrew Lunn [this message]
2016-05-13 20:56 ` Sergei Shtylyov
2016-05-13 23:44 ` Andrew Lunn
2016-05-14 19:36 ` Sergei Shtylyov
2016-05-14 19:50 ` Andrew Lunn
2016-05-14 21:46 ` Sergei Shtylyov
[not found] ` <34922ff9-e566-4829-a631-54ce07cbb325-M4DtvfQ/ZS1MRgGoP+s0PdBPR1lH4CV8@public.gmane.org>
2016-05-15 15:23 ` Andrew Lunn
[not found] ` <20160515152339.GA9021-g2DYL2Zd6BY@public.gmane.org>
2016-05-19 13:40 ` Sergei Shtylyov
2016-05-16 8:51 ` Roger Quadros
2016-05-26 9:00 ` Linus Walleij
2016-05-26 19:00 ` Uwe Kleine-König
2016-05-30 14:57 ` Linus Walleij
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