linux-kernel - Re: [RESEND][PATCH 1/3] arm: dts: introduce config HAS

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Date:	Mon, 6 May 2013 20:23:13 -0400
From:	Eduardo Valentin <eduardo.valentin@...com>
To:	Jason Gunthorpe <jgunthorpe@...idianresearch.com>
CC:	Aaro Koskinen <aaro.koskinen@....fi>,
	Eduardo Valentin <eduardo.valentin@...com>, <tony@...mide.com>,
	<linux-omap@...r.kernel.org>,
	Russell King <linux@....linux.org.uk>,
	<linux-kernel@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [RESEND][PATCH 1/3] arm: dts: introduce config HAS_BANDGAP

On 06-05-2013 18:36, Jason Gunthorpe wrote:
> On Tue, May 07, 2013 at 12:34:13AM +0300, Aaro Koskinen wrote:
>> On Mon, May 06, 2013 at 05:00:56PM -0400, Eduardo Valentin wrote:
>>> Introduce HAS_BANDGAP config entry. This config is a
>>> boolean value so that arch code can flag is they
>>> feature a bandgap device.
>>
>> Maybe it could be mentioned that omap-thermal already depend on this?
>> At least for a random reviewer it was not immediately clear why this is
>> added, especially since there were no users for it in subsequent patches.
> 
> I looked (very briefly), and it seemed like omap-thermal is self
> contained and doesn't need arch support?
> 

It is. At least I tried to make it, at least to the extenstion I could get.

> I get the impression it is desired to minimize driver kconfig
> dependencies to the minimum required to compile to increase build
> testing coverage, so maybe it would be appropriate to drop this
> entirely?
> 

Well, it is also desired to compile things to the correct target right?
Thats the idea behind this config option. It follows the same design as
CONFIG_ARCH_HAS_CPUFREQ, for instance.

> Jason
> 
> 



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