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* [PATCH v3 1/4] powerpc/mpic: add irq_set_wake support
@ 2013-04-09  2:22 Wang Dongsheng
  2013-04-09  2:22 ` [PATCH v3 2/4] powerpc/mpic: add global timer support Wang Dongsheng
                   ` (3 more replies)
  0 siblings, 4 replies; 19+ messages in thread
From: Wang Dongsheng @ 2013-04-09  2:22 UTC (permalink / raw)
  To: scottwood; +Cc: linuxppc-dev, Wang Dongsheng

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.

Signed-off-by: Wang Dongsheng <dongsheng.wang@freescale.com>
---
v3:
* Modify: Change "EINVAL" to "ENXIO" in mpic_irq_set_wake()

v2:
* Add: Check freescale chip in mpic_irq_set_wake().
* Remove: Support mpic_irq_set_wake() in ht_chip.

 arch/powerpc/sysdev/mpic.c | 18 ++++++++++++++++++
 1 file changed, 18 insertions(+)

diff --git a/arch/powerpc/sysdev/mpic.c b/arch/powerpc/sysdev/mpic.c
index 3b2efd4..ae709d2 100644
--- a/arch/powerpc/sysdev/mpic.c
+++ b/arch/powerpc/sysdev/mpic.c
@@ -920,6 +920,22 @@ int mpic_set_irq_type(struct irq_data *d, unsigned int flow_type)
 	return IRQ_SET_MASK_OK_NOCOPY;
 }
 
+static int mpic_irq_set_wake(struct irq_data *d, unsigned int on)
+{
+	struct irq_desc *desc = container_of(d, struct irq_desc, irq_data);
+	struct mpic *mpic = mpic_from_irq_data(d);
+
+	if (!(mpic->flags & MPIC_FSL))
+		return -ENXIO;
+
+	if (on)
+		desc->action->flags |= IRQF_NO_SUSPEND;
+	else
+		desc->action->flags &= ~IRQF_NO_SUSPEND;
+
+	return 0;
+}
+
 void mpic_set_vector(unsigned int virq, unsigned int vector)
 {
 	struct mpic *mpic = mpic_from_irq(virq);
@@ -957,6 +973,7 @@ static struct irq_chip mpic_irq_chip = {
 	.irq_unmask	= mpic_unmask_irq,
 	.irq_eoi	= mpic_end_irq,
 	.irq_set_type	= mpic_set_irq_type,
+	.irq_set_wake	= mpic_irq_set_wake,
 };
 
 #ifdef CONFIG_SMP
@@ -971,6 +988,7 @@ static struct irq_chip mpic_tm_chip = {
 	.irq_mask	= mpic_mask_tm,
 	.irq_unmask	= mpic_unmask_tm,
 	.irq_eoi	= mpic_end_irq,
+	.irq_set_wake	= mpic_irq_set_wake,
 };
 
 #ifdef CONFIG_MPIC_U3_HT_IRQS
-- 
1.8.0

^ permalink raw reply related	[flat|nested] 19+ messages in thread

end of thread, other threads:[~2013-07-01 22:59 UTC | newest]

Thread overview: 19+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2013-04-09  2:22 [PATCH v3 1/4] powerpc/mpic: add irq_set_wake support Wang Dongsheng
2013-04-09  2:22 ` [PATCH v3 2/4] powerpc/mpic: add global timer support Wang Dongsheng
2013-04-09  2:22 ` [PATCH v3 3/4] powerpc/mpic: create mpic subsystem object Wang Dongsheng
2013-04-09  2:22 ` [PATCH v3 4/4] powerpc/fsl: add MPIC timer wakeup support Wang Dongsheng
2013-04-16 10:58 ` [PATCH v3 1/4] powerpc/mpic: add irq_set_wake support Wang Dongsheng-B40534
2013-04-16 23:30   ` Scott Wood
2013-04-23 10:10     ` Wang Dongsheng-B40534
2013-05-03  1:54     ` Wang Dongsheng-B40534
2013-05-13  4:25     ` Wang Dongsheng-B40534
2013-05-13  5:00       ` Benjamin Herrenschmidt
2013-05-14  9:03         ` Wang Dongsheng-B40534
2013-06-09  8:20         ` Wang Dongsheng-B40534
2013-07-01  2:38         ` Wang Dongsheng-B40534
2013-07-01  2:48           ` Benjamin Herrenschmidt
2013-07-01  3:07             ` Wang Dongsheng-B40534
2013-07-01 16:55           ` Scott Wood
2013-07-01 22:16             ` Benjamin Herrenschmidt
2013-07-01 22:36               ` Scott Wood
2013-07-01 22:59                 ` Benjamin Herrenschmidt

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