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

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Message-ID: <576963F3.2050008@opensource.altera.com>
Date:	Tue, 21 Jun 2016 10:57:39 -0500
From:	Thor Thayer <tthayer@...nsource.altera.com>
To:	Rob Herring <robh@...nel.org>
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 06/21/2016 10:48 AM, Rob Herring wrote:
> 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
>
That's clean - I'll change to that string. Thanks!