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genirq: Introduce irq_chip_{request,release}_resource_parent() apis

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

Signed-off-by: Lokesh Vutla <[email protected]>
Signed-off-by: Marc Zyngier <[email protected]>
This commit is contained in:
Lokesh Vutla 2019-04-30 15:42:22 +05:30 • committed by Marc Zyngier
commit 2bd1298ac1
2 changed files with 29 additions and 0 deletions
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27
kernel/irq/chip.c
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@ -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
/**