Commit 2bd1298a authored by Lokesh Vutla's avatar Lokesh Vutla Committed by Marc Zyngier
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genirq: Introduce irq_chip_{request,release}_resource_parent() apis 



Introduce irq_chip_{request,release}_resource_parent() apis so
that these can be used in hierarchical irqchips.

Signed-off-by: default avatarLokesh Vutla <lokeshvutla@ti.com>
Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
parent 032a1ec5

include/linux/irq.h

+2 −0
Original line number Diff line number Diff line
@@ -625,6 +625,8 @@ extern int irq_chip_set_wake_parent(struct irq_data *data, unsigned int on); 
extern int irq_chip_set_vcpu_affinity_parent(struct irq_data *data,

					     void *vcpu_info);

extern int irq_chip_set_type_parent(struct irq_data *data, unsigned int type);

extern int irq_chip_request_resources_parent(struct irq_data *data);

extern void irq_chip_release_resources_parent(struct irq_data *data);

#endif



/* Handling of unhandled and spurious interrupts: */

kernel/irq/chip.c

+27 −0
Original line number Diff line number Diff line
@@ -1459,6 +1459,33 @@ int irq_chip_set_wake_parent(struct irq_data *data, unsigned int on) 
	return -ENOSYS;

}

EXPORT_SYMBOL_GPL(irq_chip_set_wake_parent);



/**

 * irq_chip_request_resources_parent - Request resources on the parent interrupt

 * @data:	Pointer to interrupt specific data

 */

int irq_chip_request_resources_parent(struct irq_data *data)

{

	data = data->parent_data;



	if (data->chip->irq_request_resources)

		return data->chip->irq_request_resources(data);



	return -ENOSYS;

}

EXPORT_SYMBOL_GPL(irq_chip_request_resources_parent);



/**

 * irq_chip_release_resources_parent - Release resources on the parent interrupt

 * @data:	Pointer to interrupt specific data

 */

void irq_chip_release_resources_parent(struct irq_data *data)

{

	data = data->parent_data;

	if (data->chip->irq_release_resources)

		data->chip->irq_release_resources(data);

}

EXPORT_SYMBOL_GPL(irq_chip_release_resources_parent);

#endif



/**

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