OMAP3: PM: Remove PER wakeup dependency on CORE.

We can remove this wakeup dependency since now, when
GPIO2-6 are enabled for IO-pad wakeup, PER domain is gauranteed
to be awake or be woken up to service.

The previous dependency did not handle all corner cases. Since there
was no sleep dependency between CORE and PER domains, if PER enters
RET and CORE is ON, PER will not be active for GPIO handling.

Signed-off-by: Mike Chan <mike@android.com>
Signed-off-by: Kevin Hilman <khilman@deeprootsystems.com>

diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c
index eec0916de8199c9635c52c838a657ca0f180fecb..1d7169855ac599bc43a477299151ca0417e24a2b 100644 (file)
--- a/arch/arm/mach-omap2/pm34xx.c
+++ b/arch/arm/mach-omap2/pm34xx.c
@@ -1096,14 +1096,6 @@ static int __init omap3_pm_init(void)
        omap3_idle_init();
 
        clkdm_add_wkdep(neon_clkdm, mpu_clkdm);
-       /*
-        * REVISIT: This wkdep is only necessary when GPIO2-6 are enabled for
-        * IO-pad wakeup.  Otherwise it will unnecessarily waste power
-        * waking up PER with every CORE wakeup - see
-        * http://marc.info/?l=linux-omap&m=121852150710062&w=2
-       */
-       clkdm_add_wkdep(per_clkdm, core_clkdm);
-
        if (omap_type() != OMAP2_DEVICE_TYPE_GP) {
                omap3_secure_ram_storage =
                        kmalloc(0x803F, GFP_KERNEL);