HPET irq is routed to i8259 and then to MIPS CPU irq (cascade). After
commit a3e6c1eff5 (MIPS: IRQ: Fix disable_irq on CPU IRQs), if without
IRQF_NO_SUSPEND in cascade_irqaction, HPET interrupts will lost during
suspend. The result is machine cannot be waken up.
Cc: <stable@xxxxxxxxxxxxxxx>
Signed-off-by: Huacai Chen <chenhc@xxxxxxxxxx>
---
arch/mips/loongson/loongson-3/irq.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/arch/mips/loongson/loongson-3/irq.c b/arch/mips/loongson/loongson-3/irq.c
index 21221ed..0f75b6b 100644
--- a/arch/mips/loongson/loongson-3/irq.c
+++ b/arch/mips/loongson/loongson-3/irq.c
@@ -44,6 +44,7 @@ void mach_irq_dispatch(unsigned int pending)
static struct irqaction cascade_irqaction = {
.handler = no_action,
+ .flags = IRQF_NO_SUSPEND,
.name = "cascade",
};
--
1.7.7.3
