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Date: Wed, 29 Jan 2014 07:46:02 -0600
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Subject: Re: [PATCH 3/3] net: via-rhine: add OF bus binding
From: Rob Herring <robherring2@gmail.com>
To: Alexey Charkov <alchark@gmail.com>
Cc: netdev <netdev@vger.kernel.org>, Tony Prisk <linux@prisktech.co.nz>,
        "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
        Roger Luethi <rl@hellgate.ch>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
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On Tue, Jan 28, 2014 at 12:27 PM, Alexey Charkov <alchark@gmail.com> wrote:
> 2014/1/27 Rob Herring <robherring2@gmail.com>:
>> On Mon, Jan 27, 2014 at 5:51 AM, Alexey Charkov <alchark@gmail.com> wrote:
>>> This should make the driver usable with VIA/WonderMedia ARM-based
>>> Systems-on-Chip integrated Rhine III adapters. Note that these
>>> are always in MMIO mode, and don't have any known EEPROM.
>>>
>>> Signed-off-by: Alexey Charkov <alchark@gmail.com>
>>> Signed-off-by: Roger Luethi <rl@hellgate.ch>
>>> ---
>>>  .../devicetree/bindings/net/via-rhine.txt          |  18 ++
>>>  drivers/net/ethernet/via/Kconfig                   |   2 +-
>>>  drivers/net/ethernet/via/via-rhine.c               | 293 +++++++++++++--------
>>>  3 files changed, 200 insertions(+), 113 deletions(-)
>>>  create mode 100644 Documentation/devicetree/bindings/net/via-rhine.txt
>>>
>>> diff --git a/Documentation/devicetree/bindings/net/via-rhine.txt b/Documentation/devicetree/bindings/net/via-rhine.txt
>>> new file mode 100644
>>> index 0000000..684dd3a
>>> --- /dev/null
>>> +++ b/Documentation/devicetree/bindings/net/via-rhine.txt
>>> @@ -0,0 +1,18 @@
>>> +* VIA Rhine 10/100 Network Controller
>>> +
>>> +Required properties:
>>> +- compatible : Should be "via,rhine"
>>
>> This should be more specific rather than...
>>
>>> +- reg : Address and length of the io space
>>> +- interrupts : Should contain the controller interrupt line
>>> +- rhine,revision : Rhine core revision, used to inform the
>>> +       driver of quirks and capabilities to expect from
>>> +       the device. Mimics the respective PCI attribute.
>>
>> having this property. The OF match table can then have the quirks set
>> based on compatible strings.
>
> Sounds fair. Do you think something like the following would fly?
>
> Required properties:
> - compatible : Should be "via,rhine-soc-vt8500" for integrated Rhine
> cores found in SoC's such as VIA VT8500, WonderMedia WM8950 and
> possibly others. These are listed as 1106:3106 rev. 0x84 on the
> virtual PCI bus under vendor-provided kernels.

Yes, although the "soc" part seems a bit redundant. The usual pattern
is <vendor>,<chip/soc>-<device>. I would go with "via,vt8500-rhine".

Rob
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