linux-kernel - Re: [PATCH 1/3] Documentation: dt: keystone: provide SoC specific compatible flags

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Message-ID: <56057319.9080104@oracle.com>
Date:	Fri, 25 Sep 2015 09:15:21 -0700
From:	santosh shilimkar <santosh.shilimkar@...cle.com>
To:	Nishanth Menon <nm@...com>, Murali Karicheri <m-karicheri2@...com>,
	Santosh Shilimkar <ssantosh@...nel.org>
Cc:	devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH 1/3] Documentation: dt: keystone: provide SoC specific
 compatible flags

9/25/2015 9:01 AM, Nishanth Menon wrote:
> On 09/25/2015 10:18 AM, santosh shilimkar wrote:
>> On 9/25/2015 7:50 AM, Nishanth Menon wrote:
> [...]
>>> But, how about userspace
>>> needing to know which SoC they are on, without needing to depend on
>>> board->soc mapping? How do we help resolve that?
>>>
>> Why the user space should care about exact SOC ?
>
> examples vary - trivial one is: debug tools like omapconf[1] or testing
> tools like opentest[2] need some standard way to ensure Linux kernel is
> functional - trusting the least set of parameters is usually what we
> would prefer. while building a generic distro such as debian or yocto,
> one prefers NOT to need to do a package build per SoC/perboard - that
> never scales. instead, you'd like the same application run on different
> systems dynamically.
>
I guessed omapconf example is coming though Keystone has no such tool
yet ;-). Opentest shouldn't need that info either.

I do agree that having a soc along with board is useful in
longer run to accommodation more boards and variants.
And only on that merit, I am willing to take these patches.

Please refresh the series commit messages based on the
discussion so far and repost. Will pick it up then.

Regards,
Santosh
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