genirq: Add runtime power management support for IRQ chips

[cascardo/linux.git] / include / linux / irq.h

diff --git a/include/linux/irq.h b/include/linux/irq.h
index 4d758a7..6c92a84 100644 (file)
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -315,6 +315,7 @@ static inline irq_hw_number_t irqd_to_hwirq(struct irq_data *d)
 /**
  * struct irq_chip - hardware interrupt chip descriptor
  *
+ * @parent_device:     pointer to parent device for irqchip
  * @name:              name for /proc/interrupts
  * @irq_startup:       start up the interrupt (defaults to ->enable if NULL)
  * @irq_shutdown:      shut down the interrupt (defaults to ->disable if NULL)
@@ -354,6 +355,7 @@ static inline irq_hw_number_t irqd_to_hwirq(struct irq_data *d)
  * @flags:             chip specific flags
  */
 struct irq_chip {
+       struct device   *parent_device;
        const char      *name;
        unsigned int    (*irq_startup)(struct irq_data *data);
        void            (*irq_shutdown)(struct irq_data *data);
@@ -488,6 +490,8 @@ extern void handle_bad_irq(struct irq_desc *desc);
 extern void handle_nested_irq(unsigned int irq);
 
 extern int irq_chip_compose_msi_msg(struct irq_data *data, struct msi_msg *msg);
+extern int irq_chip_pm_get(struct irq_data *data);
+extern int irq_chip_pm_put(struct irq_data *data);
 #ifdef CONFIG_IRQ_DOMAIN_HIERARCHY
 extern void irq_chip_enable_parent(struct irq_data *data);
 extern void irq_chip_disable_parent(struct irq_data *data);