From: Wang Dongsheng <dongsheng.wang@freescale.com>
To: <scottwood@freescale.com>
Cc: linuxppc-dev@lists.ozlabs.org,
Wang Dongsheng <dongsheng.wang@freescale.com>
Subject: [PATCH v3 1/4] powerpc/mpic: add irq_set_wake support
Date: Tue, 9 Apr 2013 10:22:29 +0800 [thread overview]
Message-ID: <1365474152-21524-1-git-send-email-dongsheng.wang@freescale.com> (raw)
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
next reply other threads:[~2013-04-09 3:01 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-04-09 2:22 Wang Dongsheng [this message]
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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