Commit ed1054a0 authored by Saravana Kannan's avatar Saravana Kannan Committed by Greg Kroah-Hartman
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irqdomain: Mark fwnodes when their irqdomain is added/removed 



This allows fw_devlink to recognize irqdomain drivers that don't use the
device-driver model to initialize the device. fw_devlink will use this
information to make sure consumers of such irqdomain aren't indefinitely
blocked from probing, waiting for the irqdomain device to appear and
bind to a driver.

Tested-by: default avatarMarek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: default avatarSaravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20210205222644.2357303-7-saravanak@google.com


Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 74c782cf

kernel/irq/irqdomain.c

+2 −0
Original line number Diff line number Diff line
@@ -205,6 +205,7 @@ struct irq_domain *__irq_domain_add(struct fwnode_handle *fwnode, int size, 
	}



	fwnode_handle_get(fwnode);

	fwnode_dev_initialized(fwnode, true);



	/* Fill structure */

	INIT_RADIX_TREE(&domain->revmap_tree, GFP_KERNEL);
@@ -253,6 +254,7 @@ void irq_domain_remove(struct irq_domain *domain) 


	pr_debug("Removed domain %s\n", domain->name);



	fwnode_dev_initialized(domain->fwnode, false);

	fwnode_handle_put(domain->fwnode);

	if (domain->flags & IRQ_DOMAIN_NAME_ALLOCATED)

		kfree(domain->name);