linux-kernel - Re: [PATCHv4 4/7] Documentation: dt: socfpga: Add Arria10 Ethernet binding

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Date:	Tue, 21 Jun 2016 10:48:14 -0500
From:	Rob Herring <robh@...nel.org>
To:	Thor Thayer <tthayer@...nsource.altera.com>
Cc:	Borislav Petkov <bp@...en8.de>,
	Doug Thompson <dougthompson@...ssion.com>,
	Mauro Carvalho Chehab <m.chehab@...sung.com>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Russell King - ARM Linux <linux@....linux.org.uk>,
	Dinh Nguyen <dinguyen@...nsource.altera.com>,
	Grant Likely <grant.likely@...aro.org>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	linux-edac@...r.kernel.org,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Thor Thayer <tthayer.linux@...il.com>
Subject: Re: [PATCHv4 4/7] Documentation: dt: socfpga: Add Arria10 Ethernet binding

On Tue, Jun 21, 2016 at 9:46 AM, Thor Thayer
<tthayer@...nsource.altera.com> wrote:
> Hi Rob,
>
>
> On 06/21/2016 08:33 AM, Rob Herring wrote:
>>
>> On Mon, Jun 20, 2016 at 09:50:49AM -0500, tthayer@...nsource.altera.com
>> wrote:
>>>
>>> From: Thor Thayer <tthayer@...nsource.altera.com>
>>>
>>> Add the device tree bindings needed to support the Altera Ethernet
>>> FIFO buffers on the Arria10 chip.
>>>
>>> Signed-off-by: Thor Thayer <tthayer@...nsource.altera.com>
>>> ---
>>> v2  No Change
>>> v3  Change to common compatible string based on maintainer comments
>>>      Add local IRQ values.
>>> v4  Add compatible string for parent node.
>>> ---
>>>   .../bindings/arm/altera/socfpga-eccmgr.txt         |   24
>>> ++++++++++++++++++++
>>>   1 file changed, 24 insertions(+)
>>>
>>> diff --git
>>> a/Documentation/devicetree/bindings/arm/altera/socfpga-eccmgr.txt
>>> b/Documentation/devicetree/bindings/arm/altera/socfpga-eccmgr.txt
>>> index 15eb0df..7c714ba 100644
>>> --- a/Documentation/devicetree/bindings/arm/altera/socfpga-eccmgr.txt
>>> +++ b/Documentation/devicetree/bindings/arm/altera/socfpga-eccmgr.txt
>>> @@ -82,6 +82,14 @@ Required Properties:
>>>   - interrupts : Should be single bit error interrupt, then double bit
>>> error
>>>         interrupt, in this order.
>>>
>>> +Ethernet FIFO ECC
>>> +Required Properties:
>>> +- compatible : Should be "altr,socfpga-eth-mac-ecc"
>>> +- reg        : Address and size for ECC block registers.
>>> +- parent     : phandle to parent (altr,socfpga-stmmac) Ethernet node.
>>
>>
>> Sorry if I wasn't clear before, but I was suggesting changing 'parent'
>> to 'altr,ethernet-mac':
>>
>> altr,ethernet-mac = <&gmac0>;
>>
>> Rob
>>
> Ahh, I see what you're saying.
>
> I used parent as the tag because I have a generic function for validating
> that the parent status is "okay" using the "parent" string in my
> validate_parent_available() function (see below).

Ah, so common ecc-mgr code is parsing it. Then how about 'altr,ecc-parent'?

Rob