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UPSTREAM: irqdomain: Mark fwnodes when their irqdomain is added/removed

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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: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20210205222644.2357303-7-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit ed1054a02a)
Bug: 181264536
Change-Id: I9e97c4b27d09f7ab60b1a3bc67c360e550d8bab0
This commit is contained in:
Saravana Kannan 2021-02-05 14:26:42 -08:00
commit 97860deed3
1 changed files with 2 additions and 0 deletions
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2
kernel/irq/irqdomain.c
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@ -196,6 +196,7 @@ 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);
@ -244,6 +245,7 @@ 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);