-----Original Message-----
From: Wang Dongsheng-B40534
Sent: Thursday, January 31, 2013 11:10 AM
To: linuxppc-dev@lists.ozlabs.org
Cc: Wang Dongsheng-B40534
Subject: [PATCH][UPSTEAM] powerpc/mpic: add irq_set_wake support
=20
Add irq_set_wake support. Just add IRQF_NO_SUSPEND to desc->action->flag.
So the wake up interrupt will not be disable in suspend_device_irqs.
=20
Signed-off-by: Wang Dongsheng <redacted>
---
 arch/powerpc/sysdev/mpic.c |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)
=20

diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index 9c6e535..2ed0220 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c

@@ -920,6 +920,18 @@ int mpic_set_irq_type(struct irq_data *d, unsigned

int flow_type)
 	return IRQ_SET_MASK_OK_NOCOPY;
 }
=20
+static int mpic_irq_set_wake(struct irq_data *d, unsigned int on)
+{
+	struct irq_desc *desc =3D container_of(d, struct irq_desc, irq_data);
+
+	if (on)
+		desc->action->flags |=3D IRQF_NO_SUSPEND;
+	else
+		desc->action->flags &=3D ~IRQF_NO_SUSPEND;
+
+	return 0;
+}
+
 void mpic_set_vector(unsigned int virq, unsigned int vector)
 {
 	struct mpic *mpic =3D mpic_from_irq(virq);

@@ -957,6 +969,7 @@ static struct irq_chip mpic_irq_chip =3D {
 	.irq_unmask	=3D mpic_unmask_irq,
 	.irq_eoi	=3D mpic_end_irq,
 	.irq_set_type	=3D mpic_set_irq_type,
+	.irq_set_wake	=3D mpic_irq_set_wake,
 };

=20
 #ifdef CONFIG_SMP

@@ -971,6 +984,7 @@ static struct irq_chip mpic_tm_chip =3D {
 	.irq_mask	=3D mpic_mask_tm,
 	.irq_unmask	=3D mpic_unmask_tm,
 	.irq_eoi	=3D mpic_end_irq,
+	.irq_set_wake	=3D mpic_irq_set_wake,
 };

=20
 #ifdef CONFIG_MPIC_U3_HT_IRQS

@@ -981,6 +995,7 @@ static struct irq_chip mpic_irq_ht_chip =3D {
 	.irq_unmask	=3D mpic_unmask_ht_irq,
 	.irq_eoi	=3D mpic_end_ht_irq,
 	.irq_set_type	=3D mpic_set_irq_type,
+	.irq_set_wake	=3D mpic_irq_set_wake,
 };
 #endif /* CONFIG_MPIC_U3_HT_IRQS */

=20
--
1.7.5.1