misc: hi6421-spmi-pmic: Switch to irq_domain_create_simple()

irq_domain_add_simple() is going away as being obsolete now. Switch to
the preferred irq_domain_create_simple(). That differs in the first
parameter: It takes more generic struct fwnode_handle instead of struct
device_node. Therefore, of_fwnode_handle() is added around the
parameter.

Note some of the users can likely use dev->fwnode directly instead of
indirect of_fwnode_handle(dev->of_node). But dev->fwnode is not
guaranteed to be set for all, so this has to be investigated on case to
case basis (by people who can actually test with the HW).

[ tglx: Fix up subject prefix ]

Signed-off-by: Jiri Slaby (SUSE) <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Link: https://lore.kernel.org/all/[email protected]

Author: Jiri Slaby (SUSE)

drivers/misc/hi6421v600-irq.c

@@ -254,8 +254,9 @@ static int hi6421v600_irq_probe(struct platform_device *pdev)
 	if (!priv->irqs)
 		return -ENOMEM;
 
-	priv->domain = irq_domain_add_simple(np, PMIC_IRQ_LIST_MAX, 0,
-					     &hi6421v600_domain_ops, priv);
+	priv->domain = irq_domain_create_simple(of_fwnode_handle(np),
+						PMIC_IRQ_LIST_MAX, 0,
+						&hi6421v600_domain_ops, priv);
 	if (!priv->domain) {
 		dev_err(dev, "Failed to create IRQ domain\n");
 		return -ENODEV;