From: David Brownell <dbrownell@users.sourceforge.net>
Date: Thu, 16 Oct 2008 05:03:16 +0000 (-0700)
Subject: gpiolib: request/free hooks
X-Git-Tag: v2.6.28-rc1~422
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=35e8bb5175c1a6ff6253f1a2acb30bfe52a2f500;p=pandora-kernel.git

gpiolib: request/free hooks

Add a new internal mechanism to gpiolib to support low power
operations by letting gpio_chip instances see when their GPIOs
are in use.  When no GPIOs are active, chips may be able to
enter lower powered runtime states by disabling clocks and/or
power domains.

Signed-off-by: David Brownell <dbrownell@users.sourceforge.net>
Cc: "Magnus Damm" <magnus.damm@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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