linux-kernel - Re: [PATCH v2 1/9] ARM: dts: consolidate aliases for Cygnus dt files

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Date:	Wed, 23 Sep 2015 14:46:23 -0700
From:	Ray Jui <rjui@...adcom.com>
To:	Arnd Bergmann <arnd@...db.de>
CC:	Florian Fainelli <f.fainelli@...il.com>,
	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>,
	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<bcm-kernel-feedback-list@...adcom.com>,
	<devicetree@...r.kernel.org>
Subject: Re: [PATCH v2 1/9] ARM: dts: consolidate aliases for Cygnus dt files



On 9/23/2015 2:31 PM, Arnd Bergmann wrote:
> On Friday 18 September 2015 14:44:54 Ray Jui wrote:
>> On 9/18/2015 2:27 PM, Arnd Bergmann wrote:
>>> On Friday 18 September 2015 14:24:06 Ray Jui wrote:
>>>
>>> The SoC has at least four uarts according to this, so it seems unlikely that
>>> each board really only uses only the fourth one of them and labels it '0'
>>> on the board. As soon as you get one board that has more than one uart wired
>>> up, you would need to undo this.
>>>
>>
>> I think Scott might have explained this in the past. uart3 is going to
>> be used on all Cygnus boards (including all future boards) because the
>> bootrom was designed to use uart3 as console and that won't change.
>>
>> Let me know if you still think I need to move this back to the dts.
> 
> I would still like to see them stay in the .dts file, if only for
> consistency with other platforms. 
> 
> Also, even if you can guarantee that uart3 is always used for the
> console, that doesn't prevent board designers from adding more than
> one uart, right?
> 
> 	Arnd
> 

Okay. Given that this patch series has been merged by Florian, I'll
submit another patch to move it back to .dts files.

Thanks,

Ray
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