diff --git a/arch/arm/mach-omap2/omap_hwmod.c b/arch/arm/mach-omap2/omap_hwmod.c
index c576121..03ffa3b 100644
--- a/arch/arm/mach-omap2/omap_hwmod.c
+++ b/arch/arm/mach-omap2/omap_hwmod.c
@@ -393,7 +393,8 @@
 	u32 wakeup_mask;
 
 	if (!oh->class->sysc ||
-	    !(oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP))
+	    !((oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP) ||
+	      (oh->class->sysc->idlemodes & SIDLE_SMART_WKUP)))
 		return -EINVAL;
 
 	if (!oh->class->sysc->sysc_fields) {
@@ -405,6 +406,9 @@
 
 	*v |= wakeup_mask;
 
+	if (oh->class->sysc->idlemodes & SIDLE_SMART_WKUP)
+		_set_slave_idlemode(oh, HWMOD_IDLEMODE_SMART_WKUP, v);
+
 	/* XXX test pwrdm_get_wken for this hwmod's subsystem */
 
 	oh->_int_flags |= _HWMOD_WAKEUP_ENABLED;
@@ -424,7 +428,8 @@
 	u32 wakeup_mask;
 
 	if (!oh->class->sysc ||
-	    !(oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP))
+	    !((oh->class->sysc->sysc_flags & SYSC_HAS_ENAWAKEUP) ||
+	      (oh->class->sysc->idlemodes & SIDLE_SMART_WKUP)))
 		return -EINVAL;
 
 	if (!oh->class->sysc->sysc_fields) {
@@ -436,6 +441,9 @@
 
 	*v &= ~wakeup_mask;
 
+	if (oh->class->sysc->idlemodes & SIDLE_SMART_WKUP)
+		_set_slave_idlemode(oh, HWMOD_IDLEMODE_SMART, v);
+
 	/* XXX test pwrdm_get_wken for this hwmod's subsystem */
 
 	oh->_int_flags &= ~_HWMOD_WAKEUP_ENABLED;
@@ -832,6 +840,10 @@
 		_set_master_standbymode(oh, idlemode, &v);
 	}
 
+	/* If slave is in SMARTIDLE, also enable wakeup */
+	if ((sf & SYSC_HAS_SIDLEMODE) && !(oh->flags & HWMOD_SWSUP_SIDLE))
+		_enable_wakeup(oh, &v);
+
 	_write_sysconfig(v, oh);
 }