From: Andres Salomon <dilinger@queued.net>
Date: Thu, 13 Jan 2011 01:00:10 +0000 (-0800)
Subject: drivers/gpio/cs5535-gpio.c: add some additional cs5535-specific GPIO functionality
X-Git-Tag: v2.6.38-rc1~342
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=1b912c1bca5c162e611384fe7d39c916e081701a;p=pandora-kernel.git

drivers/gpio/cs5535-gpio.c: add some additional cs5535-specific GPIO functionality

This adds (well, re-adds actually) handling for events/IRQs through cs5535
GPIOs.  In the wild and wooly world of CS5535, setup_event() is for
assigning an IRQ to a GPIO filter/event pair, and set_irq() sets up the
pair to trigger IRQs.

These should really only be used in highly platform-specific drivers (such
as OLPC's DCON driver).  Sadly, because set_irq() uses MSRs, this causes
the driver to become X86-specific.

Signed-off-by: Andres Salomon <dilinger@queued.net>
Signed-off-by: Daniel Drake <dsd@laptop.org>
Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: Greg KH <greg@kroah.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
---

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