linux-kernel - Re: [PATCH 2/4] ARM: mvebu: Move SCU power up in a function

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Date:	Fri, 24 Oct 2014 14:28:39 +0200
From:	Gregory CLEMENT <gregory.clement@...e-electrons.com>
To:	Thomas Petazzoni <thomas.petazzoni@...e-electrons.com>
CC:	Lior Amsalem <alior@...vell.com>, Andrew Lunn <andrew@...n.ch>,
	Jason Cooper <jason@...edaemon.net>,
	Tawfik Bayouk <tawfik@...vell.com>,
	linux-kernel@...r.kernel.org, Nadav Haklai <nadavh@...vell.com>,
	Ezequiel Garcia <ezequiel.garcia@...e-electrons.com>,
	linux-arm-kernel@...ts.infradead.org,
	Sebastian Hesselbarth <sebastian.hesselbarth@...il.com>
Subject: Re: [PATCH 2/4] ARM: mvebu: Move SCU power up in a function

Hi Thomas,

On 24/10/2014 14:19, Thomas Petazzoni wrote:
> Dear Gregory CLEMENT,
> 
> On Fri, 24 Oct 2014 14:11:17 +0200, Gregory CLEMENT wrote:
> 
>>> Since this function is not static, I think it might be a good idea to
>>> use a prefix that makes it more specific to the platform in order to
>>> not pollute the global namespace. Maybe something like
>>> 'armada_38x_scu_power_up', or something like that.
>>
>> Yes given the fact that this function is declared in the mach-mveu folder
>> it is sensible to use a more specific name. However the function itself
>> is not specific at all to an SoC. This function could be used for any Cortex A9
>> using the SCU.
> 
> Indeed, but as you say, it's right now defined in the mvebu specific
> code, so we shouldn't pollute the global namespace.
> 
> Note that there is already a scu_power_mode() that does the same thing,

I know this function: I used it for the idle support.

> but implemented in C, so I'm not sure you can call it at search an early
> point.

you meant "such" instead of "search" I guess, and yes unfortunately we can't use
a C function at this step.

Gregory



-- 
Gregory Clement, Free Electrons
Kernel, drivers, real-time and embedded Linux
development, consulting, training and support.
http://free-electrons.com
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