gpio: uniphier: Use helper function to get IRQ hardware number

Use helper function to get IRQ hardware number instead of direct access.
No functional changes intended.

Signed-off-by: Kunihiko Hayashi <hayashi.kunihiko@socionext.com>
Signed-off-by: Bartosz Golaszewski <brgl@bgdev.pl>

drivers/gpio/gpio-uniphier.c

@@ -180,7 +180,7 @@ static int uniphier_gpio_to_irq(struct gpio_chip *chip, unsigned int offset)
 static void uniphier_gpio_irq_mask(struct irq_data *data)
 {
 	struct uniphier_gpio_priv *priv = data->chip_data;
-	u32 mask = BIT(data->hwirq);
+	u32 mask = BIT(irqd_to_hwirq(data));
 
 	uniphier_gpio_reg_update(priv, UNIPHIER_GPIO_IRQ_EN, mask, 0);
 
@@ -190,7 +190,7 @@ static void uniphier_gpio_irq_mask(struct irq_data *data)
 static void uniphier_gpio_irq_unmask(struct irq_data *data)
 {
 	struct uniphier_gpio_priv *priv = data->chip_data;
-	u32 mask = BIT(data->hwirq);
+	u32 mask = BIT(irqd_to_hwirq(data));
 
 	uniphier_gpio_reg_update(priv, UNIPHIER_GPIO_IRQ_EN, mask, mask);
 
@@ -200,7 +200,7 @@ static void uniphier_gpio_irq_unmask(struct irq_data *data)
 static int uniphier_gpio_irq_set_type(struct irq_data *data, unsigned int type)
 {
 	struct uniphier_gpio_priv *priv = data->chip_data;
-	u32 mask = BIT(data->hwirq);
+	u32 mask = BIT(irqd_to_hwirq(data));
 	u32 val = 0;
 
 	if (type == IRQ_TYPE_EDGE_BOTH) {
@@ -297,7 +297,8 @@ static int uniphier_gpio_irq_domain_activate(struct irq_domain *domain,
 	struct uniphier_gpio_priv *priv = domain->host_data;
 	struct gpio_chip *chip = &priv->chip;
 
-	return gpiochip_lock_as_irq(chip, data->hwirq + UNIPHIER_GPIO_IRQ_OFFSET);
+	return gpiochip_lock_as_irq(chip,
+			irqd_to_hwirq(data) + UNIPHIER_GPIO_IRQ_OFFSET);
 }
 
 static void uniphier_gpio_irq_domain_deactivate(struct irq_domain *domain,
@@ -306,7 +307,8 @@ static void uniphier_gpio_irq_domain_deactivate(struct irq_domain *domain,
 	struct uniphier_gpio_priv *priv = domain->host_data;
 	struct gpio_chip *chip = &priv->chip;
 
-	gpiochip_unlock_as_irq(chip, data->hwirq + UNIPHIER_GPIO_IRQ_OFFSET);
+	gpiochip_unlock_as_irq(chip,
+			irqd_to_hwirq(data) + UNIPHIER_GPIO_IRQ_OFFSET);
 }
 
 static const struct irq_domain_ops uniphier_gpio_irq_domain_ops = {