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-rw-r--r--include/linux/irq.h11
1 files changed, 10 insertions, 1 deletions
diff --git a/include/linux/irq.h b/include/linux/irq.h
index b01d06db9101..e140f69163b6 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -211,6 +211,7 @@ struct irq_data {
* IRQD_MANAGED_SHUTDOWN - Interrupt was shutdown due to empty affinity
* mask. Applies only to affinity managed irqs.
* IRQD_SINGLE_TARGET - IRQ allows only a single affinity target
+ * IRQD_DEFAULT_TRIGGER_SET - Expected trigger already been set
*/
enum {
IRQD_TRIGGER_MASK = 0xf,
@@ -231,6 +232,7 @@ enum {
IRQD_IRQ_STARTED = (1 << 22),
IRQD_MANAGED_SHUTDOWN = (1 << 23),
IRQD_SINGLE_TARGET = (1 << 24),
+ IRQD_DEFAULT_TRIGGER_SET = (1 << 25),
};
#define __irqd_to_state(d) ACCESS_PRIVATE((d)->common, state_use_accessors)
@@ -260,18 +262,25 @@ static inline void irqd_mark_affinity_was_set(struct irq_data *d)
__irqd_to_state(d) |= IRQD_AFFINITY_SET;
}
+static inline bool irqd_trigger_type_was_set(struct irq_data *d)
+{
+ return __irqd_to_state(d) & IRQD_DEFAULT_TRIGGER_SET;
+}
+
static inline u32 irqd_get_trigger_type(struct irq_data *d)
{
return __irqd_to_state(d) & IRQD_TRIGGER_MASK;
}
/*
- * Must only be called inside irq_chip.irq_set_type() functions.
+ * Must only be called inside irq_chip.irq_set_type() functions or
+ * from the DT/ACPI setup code.
*/
static inline void irqd_set_trigger_type(struct irq_data *d, u32 type)
{
__irqd_to_state(d) &= ~IRQD_TRIGGER_MASK;
__irqd_to_state(d) |= type & IRQD_TRIGGER_MASK;
+ __irqd_to_state(d) |= IRQD_DEFAULT_TRIGGER_SET;
}
static inline bool irqd_is_level_type(struct irq_data *d)

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