clk: Mark fwnodes when their clock provider is added/removed

This allows fw_devlink to recognize clock provider 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 clock providers
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/20210205222644.2357303-9-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/clk/clk.c

@@ -4555,6 +4555,8 @@ int of_clk_add_provider(struct device_node *np,
 	if (ret < 0)
 		of_clk_del_provider(np);
 
+	fwnode_dev_initialized(&np->fwnode, true);
+
 	return ret;
 }
 EXPORT_SYMBOL_GPL(of_clk_add_provider);
@@ -4672,6 +4674,7 @@ void of_clk_del_provider(struct device_node *np)
 	list_for_each_entry(cp, &of_clk_providers, link) {
 		if (cp->node == np) {
 			list_del(&cp->link);
+			fwnode_dev_initialized(&np->fwnode, false);
 			of_node_put(cp->node);
 			kfree(cp);
 			break;