MIPS: RB532: Fix init of rb532_dev3_ctl_res

This register just contains the address of the actual resource, so
initialisation has to be the same as cf_slot0_res and nand_slot0_res.
Signed-off-by: NPhil Sutter <n0-1@freewrt.org>
Signed-off-by: NRalf Baechle <ralf@linux-mips.org>

arch/mips/rb532/gpio.c

@@ -55,8 +55,6 @@ static struct resource rb532_gpio_reg0_res[] = {
 static struct resource rb532_dev3_ctl_res[] = {
 	{
 		.name	= "dev3_ctl",
-		.start	= REGBASE + DEV3BASE,
-		.end	= REGBASE + DEV3BASE + sizeof(struct dev_reg) - 1,
 		.flags	= IORESOURCE_MEM,
 	}
 };
@@ -251,6 +249,9 @@ int __init rb532_gpio_init(void)
 	/* Register our GPIO chip */
 	gpiochip_add(&rb532_gpio_chip->chip);
 
+	rb532_dev3_ctl_res[0].start = readl(IDT434_REG_BASE + DEV3BASE);
+	rb532_dev3_ctl_res[0].end = rb532_dev3_ctl_res[0].start + 0x1000;
+
 	r = rb532_dev3_ctl_res;
 	dev3.base = ioremap_nocache(r->start, r->end - r->start);