ARM: 5970/1: nomadik-gpio: fix spinlock usage

Fix the incorrect spinlock usage which leads to these compiler warnings:

arch/arm/plat-nomadik/gpio.c:60: warning: passing argument 1 of `spinlock_check' from incompatible pointer type
arch/arm/plat-nomadik/gpio.c:69: warning: passing argument 1 of `spin_unlock_irqrestore' from incompatible pointer type

Acked-by: Alessandro Rubini <rubini@unipv.it>
Acked-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

arch/arm/plat-nomadik/gpio.c

@@ -36,7 +36,7 @@ struct nmk_gpio_chip {
 	struct gpio_chip chip;
 	void __iomem *addr;
 	unsigned int parent_irq;
-	spinlock_t *lock;
+	spinlock_t lock;
 	/* Keep track of configured edges */
 	u32 edge_rising;
 	u32 edge_falling;
@@ -321,6 +321,7 @@ static int __init nmk_gpio_probe(struct amba_device *dev, struct amba_id *id)
 	nmk_chip->addr = io_p2v(dev->res.start);
 	nmk_chip->chip = nmk_gpio_template;
 	nmk_chip->parent_irq = pdata->parent_irq;
+	spin_lock_init(&nmk_chip->lock);
 
 	chip = &nmk_chip->chip;
 	chip->base = pdata->first_gpio;