pinctrl: sh-pfc: Constify IRQ GPIOs arrays

The arrays are never modified, make them const.
Signed-off-by: Laurent Pinchart <laurent.pinchart+renesas@ideasonboard.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/sh-pfc/gpio.c

@@ -207,7 +207,7 @@ static int gpio_pin_to_irq(struct gpio_chip *gc, unsigned offset)
 	unsigned int i, k;
 
 	for (i = 0; i < pfc->info->gpio_irq_size; i++) {
-		short *gpios = pfc->info->gpio_irq[i].gpios;
+		const short *gpios = pfc->info->gpio_irq[i].gpios;
 
 		for (k = 0; gpios[k] >= 0; k++) {
 			if (gpios[k] == offset)

drivers/pinctrl/sh-pfc/sh_pfc.h

@@ -95,11 +95,11 @@ struct pinmux_data_reg {
 
 struct pinmux_irq {
 	int irq;
-	short *gpios;
+	const short *gpios;
 };
 
 #define PINMUX_IRQ(irq_nr, ids...)			   \
-	{ .irq = irq_nr, .gpios = (short []) { ids, -1 } }
+	{ .irq = irq_nr, .gpios = (const short []) { ids, -1 } }
 
 struct pinmux_range {
 	u16 begin;