gpio: Constify irq_domain_ops

The irq_domain_ops are not modified by the driver and the irqdomain core
code accepts pointer to a const data.
Signed-off-by: Krzysztof Kozlowski <k.kozlowski.k@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/gpio/gpio-bcm-kona.c

@@ -534,7 +534,7 @@ static void bcm_kona_gpio_irq_unmap(struct irq_domain *d, unsigned int irq)
 	irq_set_chip_data(irq, NULL);
 }
 
-static struct irq_domain_ops bcm_kona_irq_ops = {
+static const struct irq_domain_ops bcm_kona_irq_ops = {
 	.map = bcm_kona_gpio_irq_map,
 	.unmap = bcm_kona_gpio_irq_unmap,
 	.xlate = irq_domain_xlate_twocell,

drivers/gpio/gpio-em.c

@@ -266,7 +266,7 @@ static int em_gio_irq_domain_map(struct irq_domain *h, unsigned int irq,
 	return 0;
 }
 
-static struct irq_domain_ops em_gio_irq_domain_ops = {
+static const struct irq_domain_ops em_gio_irq_domain_ops = {
 	.map	= em_gio_irq_domain_map,
 	.xlate	= irq_domain_xlate_twocell,
 };

drivers/gpio/gpio-grgpio.c

@@ -332,7 +332,7 @@ static void grgpio_irq_unmap(struct irq_domain *d, unsigned int irq)
 	spin_unlock_irqrestore(&priv->bgc.lock, flags);
 }
 
-static struct irq_domain_ops grgpio_irq_domain_ops = {
+static const struct irq_domain_ops grgpio_irq_domain_ops = {
 	.map	= grgpio_irq_map,
 	.unmap	= grgpio_irq_unmap,
 };

drivers/gpio/gpio-mpc8xxx.c

@@ -329,7 +329,7 @@ static int mpc8xxx_gpio_irq_map(struct irq_domain *h, unsigned int irq,
 	return 0;
 }
 
-static struct irq_domain_ops mpc8xxx_gpio_irq_ops = {
+static const struct irq_domain_ops mpc8xxx_gpio_irq_ops = {
 	.map	= mpc8xxx_gpio_irq_map,
 	.xlate	= irq_domain_xlate_twocell,
 };

drivers/gpio/gpio-sa1100.c

@@ -160,7 +160,7 @@ static int sa1100_gpio_irqdomain_map(struct irq_domain *d,
 	return 0;
 }
 
-static struct irq_domain_ops sa1100_gpio_irqdomain_ops = {
+static const struct irq_domain_ops sa1100_gpio_irqdomain_ops = {
 	.map = sa1100_gpio_irqdomain_map,
 	.xlate = irq_domain_xlate_onetwocell,
 };

drivers/gpio/gpio-sodaville.c

@@ -125,7 +125,7 @@ static int sdv_xlate(struct irq_domain *h, struct device_node *node,
 	return 0;
 }
 
-static struct irq_domain_ops irq_domain_sdv_ops = {
+static const struct irq_domain_ops irq_domain_sdv_ops = {
 	.xlate = sdv_xlate,
 };