From: Deepak Sikri <deepak.sikri@xxxxxx>
enable_irq_wake() has a callback for interrupt controllers.
But since gic handler did not had this call back associated, it was always
returning -ENXIO, which was breaking the existing drivers. This patch
adds dummy handlers in gic in order to avoid breaking of existing drivers.
Signed-off-by: Deepak Sikri <deepak.sikri@xxxxxx>
Signed-off-by: Viresh Kumar <viresh.kumar@xxxxxx>
---
arch/arm/common/gic.c | 13 +++++++++++++
1 files changed, 13 insertions(+), 0 deletions(-)
diff --git a/arch/arm/common/gic.c b/arch/arm/common/gic.c
index 7dfa9a8..e816ef1 100644
--- a/arch/arm/common/gic.c
+++ b/arch/arm/common/gic.c
@@ -201,6 +201,18 @@ static void gic_handle_cascade_irq(unsigned int irq, struct irq_desc *desc)
chip->unmask(irq);
}
+#ifdef CONFIG_PM
+
+static int gic_set_wake(unsigned int irq, unsigned int on)
+{
+ return 0;
+}
+
+#else
+
+#define gic_set_wake NULL
+#endif
+
static struct irq_chip gic_chip = {
.name = "GIC",
.ack = gic_ack_irq,
@@ -210,6 +222,7 @@ static struct irq_chip gic_chip = {
#ifdef CONFIG_SMP
.set_affinity = gic_set_cpu,
#endif
+ .set_wake = gic_set_wake,
};
void __init gic_cascade_irq(unsigned int gic_nr, unsigned int irq)
--
1.7.2.2
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