From: Todd Poynor <toddpoynor@google.com>
Date: Tue, 4 Oct 2011 09:52:29 +0000 (+0200)
Subject: mfd: Fix twl6030 lockdep recursion warning on setting wake IRQs
X-Git-Tag: v3.2-rc1~72^2~24
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=ab2b9260df67e29d5bd69d989f2f84f8c2ed4238;p=pandora-kernel.git

mfd: Fix twl6030 lockdep recursion warning on setting wake IRQs

LOCKDEP explicitly sets all irq_desc locks as a single lock-class,
causing "possible recursive locking detected" when the TWL RTC
driver calls through enable_irq_wake to twl6030_irq_set_wake,
which recursively calls irq_set_irq_wake.  Although the
irq_desc and lock are different, LOCKDEP treats these as
equivalent, presumably due to problems that can be incurred
when locking more than one irq_desc, so best to avoid this.

Suspend/resume actions implemented as PM notifiers to avoid
touch the TWL core for this.

Signed-off-by: Todd Poynor <toddpoynor@google.com>
Acked-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Samuel Ortiz <sameo@linux.intel.com>
---

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