From: Nicolas Ferre <nicolas.ferre@atmel.com>
To: Andrew Lunn <andrew@lunn.ch>,
Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Cc: <netdev@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<devicetree@vger.kernel.org>
Subject: Re: [PATCH RFT 2/2] macb: kill PHY reset code
Date: Tue, 12 Apr 2016 11:23:29 +0200 [thread overview]
Message-ID: <570CBE91.7020406@atmel.com> (raw)
In-Reply-To: <20160411185115.GA30623@lunn.ch>
Le 11/04/2016 20:51, Andrew Lunn a écrit :
> On Mon, Apr 11, 2016 at 09:39:02PM +0300, Sergei Shtylyov wrote:
>> Hello.
>>
>> On 04/11/2016 09:19 PM, Andrew Lunn wrote:
>>
>>>>> The code you are deleting would of ignored the flags in the gpio
>>>>> property, i.e. active low.
>>>>
>>>> Hm, you're right -- I forgot about that... :-/
>>>>
>>>>> The new code in the previous patch does
>>>>> however take the flags into account. Did you check if there are any
>>>>> device trees which have flags, which were never used, but are now
>>>>> going to be used and thus break...
>>>>
>>>> Checked this now and found out arch/arm/boot/dts/ar91-vinco.dts.
>>>> Looks like it needs to be fixed indeed...
>>>>
>>> And this is where it gets tricky. You are breaking backwards
>>> compatibility by now respecting the flag. An old DT blob is not going
>>> to work.
>>
>> Do we care that much about the DT blobs that are just *wrong*?
>
> Wrong, but currently works.
>
>>> You potentially need to add a new property and deprecate the old one.
>>
>> I would like to avoid that...
>
> You will need the agreement from the at91-vinco maintainer.
If the at91-vinco has to be modified, you have my agreement that it can
be modified.
Bye,
--
Nicolas Ferre
next prev parent reply other threads:[~2016-04-12 9:23 UTC|newest]
Thread overview: 51+ 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
2016-04-08 22:25 ` [PATCH RFT 2/2] macb: kill PHY reset code Sergei Shtylyov
2016-04-11 2:28 ` Andrew Lunn
2016-04-11 17:41 ` Sergei Shtylyov
2016-04-11 18:19 ` Andrew Lunn
2016-04-11 18:39 ` Sergei Shtylyov
2016-04-11 18:51 ` Andrew Lunn
2016-04-11 19:01 ` Sergei Shtylyov
2016-04-26 10:24 ` [PATCH] ARM: dts: at91: VInCo: fix phy reset gpio flag Nicolas Ferre
2016-04-26 17:17 ` David Miller
2016-04-26 18:27 ` Sergei Shtylyov
2016-04-27 7:15 ` Nicolas Ferre
2016-04-26 18:25 ` Sergei Shtylyov
2016-04-12 9:23 ` Nicolas Ferre [this message]
2016-04-12 9:22 ` [PATCH RFT 2/2] macb: kill PHY reset code Nicolas Ferre
2016-04-12 13:40 ` Andrew Lunn
2016-04-12 14:45 ` Nicolas Ferre
2016-04-12 13:54 ` Sergei Shtylyov
2016-04-12 14:57 ` 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
2016-05-10 19:11 ` Sergei Shtylyov
2016-05-10 19:13 ` Florian Fainelli
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
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
2016-05-15 15:23 ` Andrew Lunn
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
2020-07-23 7:24 ` Technical Help jollyzula
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