https://github.com/torvalds/linux
Revision 83c6590cb83d3106df12fee36ac2a261951b8c88 authored by David Brownell on 17 May 2007, 05:11:13 UTC, committed by Linus Torvalds on 17 May 2007, 12:23:05 UTC
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>
1 parent 621e59a
History
Tip revision: 83c6590cb83d3106df12fee36ac2a261951b8c88 authored by David Brownell on 17 May 2007, 05:11:13 UTC
gpio interface loosens call restrictions
Tip revision: 83c6590
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usr
.gitignore -rw-r--r-- 572 bytes
.mailmap -rw-r--r-- 3.6 KB
COPYING -rw-r--r-- 18.3 KB
CREDITS -rw-r--r-- 89.3 KB
Kbuild -rw-r--r-- 1.5 KB
MAINTAINERS -rw-r--r-- 86.6 KB
Makefile -rw-r--r-- 49.2 KB
README -rw-r--r-- 16.5 KB
REPORTING-BUGS -rw-r--r-- 3.0 KB

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