linux-kernel - Re: [PATCH v2a RESEND 2/2] of_mdio: Allow the DT to specify the phy ID and avoid autoprobing

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Message-ID: <CAGVrzcYVK6baunDFzyTm58-+=cw14nvQn9+rFFPca_YUnmbJ=A@mail.gmail.com>
Date:	Wed, 12 Mar 2014 15:06:34 -0700
From:	Florian Fainelli <f.fainelli@...il.com>
To:	Rob Herring <robherring2@...il.com>
Cc:	Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
	Rob Herring <robh+dt@...nel.org>,
	"David S. Miller" <davem@...emloft.net>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	netdev <netdev@...r.kernel.org>
Subject: Re: [PATCH v2a RESEND 2/2] of_mdio: Allow the DT to specify the phy
 ID and avoid autoprobing

2014-03-12 14:35 GMT-07:00 Rob Herring <robherring2@...il.com>:
> On Wed, Mar 12, 2014 at 4:05 PM, Jason Gunthorpe
> <jgunthorpe@...idianresearch.com> wrote:
>> This makes the generic of_mdiobus_register parse the DT compatible string for
>> the pattern ethernet-phy-idAAAA.BBBB. If present it should be a value that
>> matches the phy-id register normally readable through MDIO.
>>
>> When the ID is given the phy autoprobing is defeated and the phy is
>> created directly.
>>
>> This is necessary to support phy's that cannot be autoprobed when
>> of_mdiobus_register is called. Specifically, my case has the phy in reset at
>> of_mdiobus_register, the reset is only released once the ethernet driver
>> starts, before it attaches to the phy.
>>
>> Tested on ARM Kirkwood with phy id 0x01410e90 (Marvell 88E1318)
>>
>> Signed-off-by: Jason Gunthorpe <jgunthorpe@...idianresearch.com>
>> Acked-by: Florian Fainelli <f.fainelli@...il.com>
>> ---
>>  drivers/of/of_mdio.c | 30 +++++++++++++++++++++++++++++-
>>  1 file changed, 29 insertions(+), 1 deletion(-)
>>
>> There was some reworking of the original code in v3.14-rc6, this resolves the
>> merge conflicts and I retested the resolved patch on Kirkwood.
>>
>> Florian, do you know what path to mainline a this patch should take?
>
> Via David's net tree.

In that case, this is probably more relevant for the 'net-next' tree
since it is not a bug fix and we are fairly late in the 3.14 cycle?
-- 
Florian
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