From: David Brownell <david-b@pacbell.net>
Date: Thu, 17 May 2007 05:11:13 +0000 (-0700)
Subject: gpio interface loosens call restrictions
X-Git-Tag: v2.6.22-rc2~42
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=83c6590cb83d3106df12fee36ac2a261951b8c88;p=pandora-kernel.git

gpio interface loosens call restrictions

Loosen gpio_{request,free}() and gpio_direction_{in,out}put() call context
restrictions slightly, so a common idiom is no longer an error: board init
code setting up spinlock-safe GPIOs before tasking is enabled.

The issue was caught by some paranoid code with might_sleep() checks.  The
legacy platform-specific GPIO interfaces stick to spinlock-safe GPIOs, so this
change reflects current implementations and won't break anything.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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