From mboxrd@z Thu Jan 1 00:00:00 1970 From: khilman@deeprootsystems.com (Kevin Hilman) Date: Wed, 21 Apr 2010 17:07:50 -0700 Subject: [PATCH 1/2] omap: pm34xx: Enable IO / IO-CHAIN wakeups for PER In-Reply-To: <1271295665-26187-1-git-send-email-mike@android.com> (Mike Chan's message of "Wed\, 14 Apr 2010 18\:41\:04 -0700") References: <1271295665-26187-1-git-send-email-mike@android.com> Message-ID: <87aasw5oyx.fsf@deeprootsystems.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Mike Chan writes: > IO events can also come from GPIO modules, which reside in the PER domain. > It is possible for the PER to enter RET while CORE is still in ON. > If GPIO 2-6 are enabled for IO-pad wakeups, the PER domain will not > wakeup in this case, unless we enable it. > > Signed-off-by: Mike Chan Hi Mike, I'm a little puzzled on this one. My understanding is that the IO pad is only armed when CORE is in RET or OFF. I need to dig a little more in the TRM on this one to clarify. If CORE is staying on, it might be that your GPIO module level wakeups are not being configured correctly. Please check the 'Known Problems' section of the OMAP PM wiki[1], search for 'GPIO module-level wakeups' Kevin [1] http://elinux.org/OMAP_Power_Management#Known_Problems