linux-kernel - Re: [PATCH 2/2] dt-bindings: Add new boards to bcm4708 DT bindings

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Date:	Wed, 14 Oct 2015 12:44:24 -0700
From:	Scott Branden <sbranden@...adcom.com>
To:	Jon Mason <jonmason@...adcom.com>,
	Florian Fainelli <f.fainelli@...il.com>
CC:	Hauke Mehrtens <hauke@...ke-m.de>,
	Rob Herring <robh+dt@...nel.org>,
	Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	"Ian Campbell" <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Russell King <linux@....linux.org.uk>,
	<devicetree@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>,
	<bcm-kernel-feedback-list@...adcom.com>
Subject: Re: [PATCH 2/2] dt-bindings: Add new boards to bcm4708 DT bindings

Hi Jon,

Yes, please only add SoC part number compatible strings, not board 
compatible strings.

On 15-10-14 08:34 AM, Jon Mason wrote:
> On Tue, Oct 13, 2015 at 03:37:49PM -0700, Florian Fainelli wrote:
>> On 13/10/15 14:40, Jon Mason wrote:
>>> On Sat, Oct 10, 2015 at 04:42:04PM +0200, Hauke Mehrtens wrote:
>>>> On 10/03/2015 12:22 AM, Jon Mason wrote:
>>>>> Add the 4708, 4709, and 953012k SVKs to the the documentation for the
>>>>> Broadcom Northstar device tree bindings.
>>>>>
>>>>> Signed-off-by: Jon Mason <jonmason@...adcom.com>
>>>>> ---
>>>>>   Documentation/devicetree/bindings/arm/bcm/brcm,bcm4708.txt | 7 +++++++
>>>>>   1 file changed, 7 insertions(+)
>>>>>
>>>>> diff --git a/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4708.txt b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4708.txt
>>>>> index 6b0f49f..bdf4c06 100644
>>>>> --- a/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4708.txt
>>>>> +++ b/Documentation/devicetree/bindings/arm/bcm/brcm,bcm4708.txt
>>>>
>>>> What should be documented in this file? This is more a question to the
>>>> guys more familiar with arm in Linux. Currently the Linux kernel only
>>>> supports brcm,bcm4708 and all goes back to that one.
>>>
>>> I was under the impression that all boards should be added to these
>>> files.  We have been doing so for Cygnus and NSP.
>>
>> Tracking exactly which boards are supported by the brcm,bcm4708
>> compatible string might be tedious, I tend to agree with just listing
>> the supported SoCs, and leaving the specific board compatibles to the
>> individual DTS files instead.
>
> Ok, I'll simply add entries for NS and 4709 to this.
Good - we have only been adding SoC compatible strings for Cygnus and 
NSP - not board compatibles.

>
> Thanks,
> Jon
>
>>
>>>
>>> Thanks,
>>> Jon
>>>
>>>>
>>>>> @@ -5,4 +5,11 @@ Boards with the BCM4708 SoC shall have the following properties:
>>>>>
>>>>>   Required root node property:
>>>>>
>>>>> +bcm94709
>>>>>   compatible = "brcm,bcm4708";
>>>>> +
>>>>> +bcm94709
>>>>> +compatible = "brcm,bcm4709", "brcm,bcm4708";
>>>>> +
>>>>> +bcm953012k
>>>>> +compatible = "brcm,bcm5301k", "brcm,bcm4708";
>>>>>
>>>>
>>
>>
>> --
>> Florian

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