gpio: Use dev_fwnode() where applicable across drivers

irq_domain_create_simple() takes fwnode as the first argument. It can be
extracted from the struct device using dev_fwnode() helper instead of
using of_node with of_fwnode_handle().

So use the dev_fwnode() helper where applicable.

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20250611104348.192092-6-jirislaby@kernel.org
[Bartosz: tweaked the commit message]
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

drivers/gpio/gpio-brcmstb.c

@@ -436,10 +436,8 @@ static int brcmstb_gpio_irq_setup(struct platform_device *pdev,
 	struct device_node *np = dev->of_node;
 	int err;
 
-	priv->irq_domain =
-		irq_domain_create_linear(of_fwnode_handle(np), priv->num_gpios,
-				      &brcmstb_gpio_irq_domain_ops,
-				      priv);
+	priv->irq_domain = irq_domain_create_linear(dev_fwnode(dev), priv->num_gpios,
+						    &brcmstb_gpio_irq_domain_ops, priv);
 	if (!priv->irq_domain) {
 		dev_err(dev, "Couldn't allocate IRQ domain\n");
 		return -ENXIO;

drivers/gpio/gpio-davinci.c

@@ -478,7 +478,7 @@ static int davinci_gpio_irq_setup(struct platform_device *pdev)
 			return irq;
 		}
 
-		irq_domain = irq_domain_create_legacy(of_fwnode_handle(dev->of_node), ngpio, irq, 0,
+		irq_domain = irq_domain_create_legacy(dev_fwnode(dev), ngpio, irq, 0,
 						      &davinci_gpio_irq_ops, chips);
 		if (!irq_domain) {
 			dev_err(dev, "Couldn't register an IRQ domain\n");

drivers/gpio/gpio-em.c

@@ -325,8 +325,7 @@ static int em_gio_probe(struct platform_device *pdev)
 	irq_chip->irq_release_resources = em_gio_irq_relres;
 	irq_chip->flags	= IRQCHIP_SKIP_SET_WAKE | IRQCHIP_MASK_ON_SUSPEND;
 
-	p->irq_domain = irq_domain_create_simple(of_fwnode_handle(dev->of_node),
-						 ngpios, 0,
+	p->irq_domain = irq_domain_create_simple(dev_fwnode(dev), ngpios, 0,
 						 &em_gio_irq_domain_ops, p);
 	if (!p->irq_domain) {
 		dev_err(dev, "cannot initialize irq domain\n");

drivers/gpio/gpio-grgpio.c

@@ -402,9 +402,8 @@ static int grgpio_probe(struct platform_device *ofdev)
 			return -EINVAL;
 		}
 
-		priv->domain = irq_domain_create_linear(of_fwnode_handle(np), gc->ngpio,
-						     &grgpio_irq_domain_ops,
-						     priv);
+		priv->domain = irq_domain_create_linear(dev_fwnode(&ofdev->dev), gc->ngpio,
+							&grgpio_irq_domain_ops, priv);
 		if (!priv->domain) {
 			dev_err(dev, "Could not add irq domain\n");
 			return -EINVAL;

drivers/gpio/gpio-lpc18xx.c

@@ -249,8 +249,8 @@ static int lpc18xx_gpio_pin_ic_probe(struct lpc18xx_gpio_chip *gc)
 	raw_spin_lock_init(&ic->lock);
 
 	ic->domain = irq_domain_create_hierarchy(parent_domain, 0, NR_LPC18XX_GPIO_PIN_IC_IRQS,
-						 of_fwnode_handle(dev->of_node),
-						 &lpc18xx_gpio_pin_ic_domain_ops, ic);
+						 dev_fwnode(dev), &lpc18xx_gpio_pin_ic_domain_ops,
+						 ic);
 	if (!ic->domain) {
 		pr_err("unable to add irq domain\n");
 		ret = -ENODEV;

drivers/gpio/gpio-mvebu.c

@@ -1236,8 +1236,8 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
 	if (!have_irqs)
 		return 0;
 
-	mvchip->domain =
-	    irq_domain_create_linear(of_fwnode_handle(np), ngpios, &irq_generic_chip_ops, NULL);
+	mvchip->domain = irq_domain_create_linear(dev_fwnode(&pdev->dev), ngpios,
+						  &irq_generic_chip_ops, NULL);
 	if (!mvchip->domain) {
 		dev_err(&pdev->dev, "couldn't allocate irq domain %s (DT).\n",
 			mvchip->chip.label);

drivers/gpio/gpio-mxc.c

@@ -509,8 +509,8 @@ static int mxc_gpio_probe(struct platform_device *pdev)
 		goto out_bgio;
 	}
 
-	port->domain = irq_domain_create_legacy(of_fwnode_handle(np), 32, irq_base, 0,
-					     &irq_domain_simple_ops, NULL);
+	port->domain = irq_domain_create_legacy(dev_fwnode(&pdev->dev), 32, irq_base, 0,
+						&irq_domain_simple_ops, NULL);
 	if (!port->domain) {
 		err = -ENODEV;
 		goto out_bgio;

drivers/gpio/gpio-mxs.c

@@ -303,7 +303,7 @@ static int mxs_gpio_probe(struct platform_device *pdev)
 		goto out_iounmap;
 	}
 
-	port->domain = irq_domain_create_legacy(of_fwnode_handle(np), 32, irq_base, 0,
+	port->domain = irq_domain_create_legacy(dev_fwnode(&pdev->dev), 32, irq_base, 0,
 						&irq_domain_simple_ops, NULL);
 	if (!port->domain) {
 		err = -ENODEV;

drivers/gpio/gpio-pxa.c

@@ -642,9 +642,8 @@ static int pxa_gpio_probe(struct platform_device *pdev)
 	if (!pxa_last_gpio)
 		return -EINVAL;
 
-	pchip->irqdomain = irq_domain_create_legacy(of_fwnode_handle(pdev->dev.of_node),
-						    pxa_last_gpio + 1, irq_base, 0,
-						    &pxa_irq_domain_ops, pchip);
+	pchip->irqdomain = irq_domain_create_legacy(dev_fwnode(&pdev->dev), pxa_last_gpio + 1,
+						    irq_base, 0, &pxa_irq_domain_ops, pchip);
 	if (!pchip->irqdomain)
 		return -ENOMEM;
 

drivers/gpio/gpio-rockchip.c

@@ -521,8 +521,8 @@ static int rockchip_interrupts_register(struct rockchip_pin_bank *bank)
 	struct irq_chip_generic *gc;
 	int ret;
 
-	bank->domain = irq_domain_create_linear(of_fwnode_handle(bank->of_node), 32,
-					&irq_generic_chip_ops, NULL);
+	bank->domain = irq_domain_create_linear(dev_fwnode(bank->dev), 32, &irq_generic_chip_ops,
+						NULL);
 	if (!bank->domain) {
 		dev_warn(bank->dev, "could not init irq domain for bank %s\n",
 			 bank->name);

drivers/gpio/gpio-sodaville.c

@@ -169,8 +169,8 @@ static int sdv_register_irqsupport(struct sdv_gpio_chip_data *sd,
 			IRQ_GC_INIT_MASK_CACHE, IRQ_NOREQUEST,
 			IRQ_LEVEL | IRQ_NOPROBE);
 
-	sd->id = irq_domain_create_legacy(of_fwnode_handle(pdev->dev.of_node), SDV_NUM_PUB_GPIOS,
-				sd->irq_base, 0, &irq_domain_sdv_ops, sd);
+	sd->id = irq_domain_create_legacy(dev_fwnode(&pdev->dev), SDV_NUM_PUB_GPIOS, sd->irq_base,
+					  0, &irq_domain_sdv_ops, sd);
 	if (!sd->id)
 		return -ENODEV;
 

drivers/gpio/gpio-tb10x.c

@@ -183,9 +183,8 @@ static int tb10x_gpio_probe(struct platform_device *pdev)
 		if (ret != 0)
 			return ret;
 
-		tb10x_gpio->domain = irq_domain_create_linear(of_fwnode_handle(np),
-						tb10x_gpio->gc.ngpio,
-						&irq_generic_chip_ops, NULL);
+		tb10x_gpio->domain = irq_domain_create_linear(dev_fwnode(dev), tb10x_gpio->gc.ngpio,
+							      &irq_generic_chip_ops, NULL);
 		if (!tb10x_gpio->domain) {
 			return -ENOMEM;
 		}

drivers/gpio/gpio-twl4030.c

@@ -523,7 +523,7 @@ static int gpio_twl4030_probe(struct platform_device *pdev)
 		return irq_base;
 	}
 
-	irq_domain_create_legacy(of_fwnode_handle(pdev->dev.of_node), TWL4030_GPIO_MAX, irq_base, 0,
+	irq_domain_create_legacy(dev_fwnode(&pdev->dev), TWL4030_GPIO_MAX, irq_base, 0,
 				 &irq_domain_simple_ops, NULL);
 
 	ret = twl4030_sih_setup(&pdev->dev, TWL4030_MODULE_GPIO, irq_base);