gpio-bcm-kona: use new req/relres and dis/enable_irq funcs

Since this driver does not use the gpiolib irqchip helpers it will have to
allocate the irq resources and irq_en/disable itself.

Use the new gpiochip_req/relres_irq helpers to request/release all the
resources.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Cc: Ray Jui <rjui@broadcom.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpio-bcm-kona.c

@@ -373,6 +373,7 @@ static void bcm_kona_gpio_irq_mask(struct irq_data *d)
 	val = readl(reg_base + GPIO_INT_MASK(bank_id));
 	val |= BIT(bit);
 	writel(val, reg_base + GPIO_INT_MASK(bank_id));
+	gpiochip_disable_irq(&kona_gpio->gpio_chip, gpio);
 
 	raw_spin_unlock_irqrestore(&kona_gpio->lock, flags);
 }
@@ -394,6 +395,7 @@ static void bcm_kona_gpio_irq_unmask(struct irq_data *d)
 	val = readl(reg_base + GPIO_INT_MSKCLR(bank_id));
 	val |= BIT(bit);
 	writel(val, reg_base + GPIO_INT_MSKCLR(bank_id));
+	gpiochip_enable_irq(&kona_gpio->gpio_chip, gpio);
 
 	raw_spin_unlock_irqrestore(&kona_gpio->lock, flags);
 }
@@ -485,23 +487,15 @@ static void bcm_kona_gpio_irq_handler(struct irq_desc *desc)
 static int bcm_kona_gpio_irq_reqres(struct irq_data *d)
 {
 	struct bcm_kona_gpio *kona_gpio = irq_data_get_irq_chip_data(d);
-	int ret;
 
-	ret = gpiochip_lock_as_irq(&kona_gpio->gpio_chip, d->hwirq);
-	if (ret) {
-		dev_err(kona_gpio->gpio_chip.parent,
-			"unable to lock HW IRQ %lu for IRQ\n",
-			d->hwirq);
-		return ret;
-	}
-	return 0;
+	return gpiochip_reqres_irq(&kona_gpio->gpio_chip, d->hwirq);
 }
 
 static void bcm_kona_gpio_irq_relres(struct irq_data *d)
 {
 	struct bcm_kona_gpio *kona_gpio = irq_data_get_irq_chip_data(d);
 
-	gpiochip_unlock_as_irq(&kona_gpio->gpio_chip, d->hwirq);
+	gpiochip_relres_irq(&kona_gpio->gpio_chip, d->hwirq);
 }
 
 static struct irq_chip bcm_gpio_irq_chip = {