From: David Brownell <dbrownell@users.sourceforge.net>
Date: Thu, 9 Sep 2010 23:38:03 +0000 (-0700)
Subject: gpio: doc updates
X-Git-Tag: v2.6.36-rc4~36
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=c956126c137d97acb6f4d56fa9572d0bcc84e4ed;p=pandora-kernel.git

gpio: doc updates

There's been some recent confusion about error checking GPIO numbers.
briefly, it should be handled mostly during setup, when gpio_request() is
called, and NEVER by expectig gpio_is_valid to report more than
never-usable GPIO numbers.

[akpm@linux-foundation.org: terminate unterminated comment]
Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: Eric Miao" <eric.y.miao@gmail.com>
Cc: "Ryan Mallon" <ryan@bluewatersys.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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