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Commit 52b2a05f authored by Quan Nguyen's avatar Quan Nguyen Committed by Thomas Gleixner
Browse files

genirq: Export IRQ functions for module use 



Export irq_chip_*_parent(), irq_domain_create_hierarchy(),
irq_domain_set_hwirq_and_chip(), irq_domain_reset_irq_data(),
irq_domain_alloc/free_irqs_parent()

So gpio drivers can be built as modules. First user: gpio-xgene-sb

Signed-off-by: default avatarQuan Nguyen <qnguyen@apm.com>
Acked-by: default avatarLinus Walleij <linus.walleij@linaro.org>
Cc: Phong Vo <pvo@apm.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: patches@apm.com
Cc: Loc Ho <lho@apm.com>
Cc: Keyur Chudgar <kchudgar@apm.com>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Link: https://lists.01.org/pipermail/kbuild-all/2016-February/017914.html
Link: http://lkml.kernel.org/r/1457017012-10628-1-git-send-email-qnguyen@apm.com


Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent f49e0eb2

kernel/irq/chip.c

+4 −0
Original line number Diff line number Diff line
@@ -961,6 +961,7 @@ void irq_chip_mask_parent(struct irq_data *data) 
	data = data->parent_data;

	data->chip->irq_mask(data);

}

EXPORT_SYMBOL_GPL(irq_chip_mask_parent);



/**

 * irq_chip_unmask_parent - Unmask the parent interrupt
@@ -971,6 +972,7 @@ void irq_chip_unmask_parent(struct irq_data *data) 
	data = data->parent_data;

	data->chip->irq_unmask(data);

}

EXPORT_SYMBOL_GPL(irq_chip_unmask_parent);



/**

 * irq_chip_eoi_parent - Invoke EOI on the parent interrupt
@@ -981,6 +983,7 @@ void irq_chip_eoi_parent(struct irq_data *data) 
	data = data->parent_data;

	data->chip->irq_eoi(data);

}

EXPORT_SYMBOL_GPL(irq_chip_eoi_parent);



/**

 * irq_chip_set_affinity_parent - Set affinity on the parent interrupt
@@ -1016,6 +1019,7 @@ int irq_chip_set_type_parent(struct irq_data *data, unsigned int type) 


	return -ENOSYS;

}

EXPORT_SYMBOL_GPL(irq_chip_set_type_parent);



/**

 * irq_chip_retrigger_hierarchy - Retrigger an interrupt in hardware

kernel/irq/irqdomain.c

+5 −0
Original line number Diff line number Diff line
@@ -893,6 +893,7 @@ struct irq_domain *irq_domain_create_hierarchy(struct irq_domain *parent, 


	return domain;

}

EXPORT_SYMBOL_GPL(irq_domain_create_hierarchy);



static void irq_domain_insert_irq(int virq)

{
@@ -1043,6 +1044,7 @@ int irq_domain_set_hwirq_and_chip(struct irq_domain *domain, unsigned int virq, 


	return 0;

}

EXPORT_SYMBOL_GPL(irq_domain_set_hwirq_and_chip);



/**

 * irq_domain_set_info - Set the complete data for a @virq in @domain
@@ -1076,6 +1078,7 @@ void irq_domain_reset_irq_data(struct irq_data *irq_data) 
	irq_data->chip = &no_irq_chip;

	irq_data->chip_data = NULL;

}

EXPORT_SYMBOL_GPL(irq_domain_reset_irq_data);



/**

 * irq_domain_free_irqs_common - Clear irq_data and free the parent
@@ -1273,6 +1276,7 @@ int irq_domain_alloc_irqs_parent(struct irq_domain *domain, 
						       nr_irqs, arg);

	return -ENOSYS;

}

EXPORT_SYMBOL_GPL(irq_domain_alloc_irqs_parent);



/**

 * irq_domain_free_irqs_parent - Free interrupts from parent domain
@@ -1290,6 +1294,7 @@ void irq_domain_free_irqs_parent(struct irq_domain *domain, 
		irq_domain_free_irqs_recursive(domain->parent, irq_base,

					       nr_irqs);

}

EXPORT_SYMBOL_GPL(irq_domain_free_irqs_parent);



/**

 * irq_domain_activate_irq - Call domain_ops->activate recursively to activate