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UPSTREAM: PM: domains: Mark fwnodes when their powerdomain is added/removed

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This allows fw_devlink to recognize power domain 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 power domain aren't
indefinitely blocked from probing, waiting for the power domain 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/20210205222644.2357303-8-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
(cherry picked from commit bab2d712ee)
Bug: 181264536
Change-Id: I31f01b54642bfa395b282c03b9d2ddd4ff69b8f9
This commit is contained in:
Saravana Kannan 2021-02-05 14:26:43 -08:00
parent 97860deed3
commit 559e5a7de1
1 changed files with 2 additions and 0 deletions
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2
drivers/base/power/domain.c
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@ -2223,6 +2223,7 @@ static int genpd_add_provider(struct device_node *np, genpd_xlate_t xlate,
cp->node = of_node_get(np);
cp->data = data;
cp->xlate = xlate;
fwnode_dev_initialized(&np->fwnode, true);
mutex_lock(&of_genpd_mutex);
list_add(&cp->link, &of_genpd_providers);
@ -2412,6 +2413,7 @@ void of_genpd_del_provider(struct device_node *np)
}
}
fwnode_dev_initialized(&cp->node->fwnode, false);
list_del(&cp->link);
of_node_put(cp->node);
kfree(cp);