diff options
Diffstat (limited to 'kernel/irq/resend.c')
| -rw-r--r-- | kernel/irq/resend.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/kernel/irq/resend.c b/kernel/irq/resend.c index 14dd5761e8c..9065107f083 100644 --- a/kernel/irq/resend.c +++ b/kernel/irq/resend.c @@ -58,10 +58,13 @@ void check_irq_resend(struct irq_desc *desc, unsigned int irq) /* * We do not resend level type interrupts. Level type * interrupts are resent by hardware when they are still - * active. + * active. Clear the pending bit so suspend/resume does not + * get confused. */ - if (irq_settings_is_level(desc)) + if (irq_settings_is_level(desc)) { + desc->istate &= ~IRQS_PENDING; return; + } if (desc->istate & IRQS_REPLAY) return; if (desc->istate & IRQS_PENDING) { @@ -71,6 +74,14 @@ void check_irq_resend(struct irq_desc *desc, unsigned int irq) if (!desc->irq_data.chip->irq_retrigger || !desc->irq_data.chip->irq_retrigger(&desc->irq_data)) { #ifdef CONFIG_HARDIRQS_SW_RESEND + /* + * If the interrupt has a parent irq and runs + * in the thread context of the parent irq, + * retrigger the parent. + */ + if (desc->parent_irq && + irq_settings_is_nested_thread(desc)) + irq = desc->parent_irq; /* Set it pending and activate the softirq: */ set_bit(irq, irqs_resend); tasklet_schedule(&resend_tasklet); |