linux-kernel - Re: [PATCH v3 02/10] ARM: tegra: export Tegra chipid

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Date:	Wed, 22 Feb 2012 11:19:53 -0800
From:	Colin Cross <ccross@...roid.com>
To:	Olof Johansson <olof@...om.net>
Cc:	Peter De Schrijver <pdeschrijver@...dia.com>,
	Stephen Warren <swarren@...dia.com>,
	Russell King <linux@....linux.org.uk>,
	Gary King <gking@...dia.com>, Arnd Bergmann <arnd@...db.de>,
	linux-tegra@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 02/10] ARM: tegra: export Tegra chipid

On Mon, Feb 20, 2012 at 3:30 PM, Olof Johansson <olof@...om.net> wrote:
> Hi,
>
> On Mon, Feb 20, 2012 at 3:13 PM, Colin Cross <ccross@...roid.com> wrote:
>
>> Other platforms use accessors for this (cpu_is_xxx(), although
>> soc_is_xxx() is probably more appropriate).
>
> I have previously objected to additions of said functions on tegra,
> since they tend to start crawling into drivers as runtime tests
> instead of providing more appropriate detection at probe time.
>
> I can be persuaded differently but I haven't yet seen a strong case
> for changing my mind. :)

soc_is_xxx() is better than spreading tegra_chip_id == XXX all over
the place, but keeping them out of drivers completely is even better.
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