pinctrl/nomadik: make independent of <mach/irqs.h>

Some leftovers in the driver were using NOMADIK_* macros to
translate the irq numbers to offsets, while the first base IRQ
was already being passed from platform data, and the function
setting the disable mask could just as well use the irqdomain.
Reviewed-by: NStephen Warren <swarren@nvidia.com>
Signed-off-by: NLinus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/pinctrl-nomadik.c

@@ -32,7 +32,6 @@
 #include <linux/pinctrl/consumer.h>
 #include <linux/platform_data/pinctrl-nomadik.h>
 #include <asm/mach/irq.h>
-#include <mach/irqs.h>
 #include "pinctrl-nomadik.h"
 #include "core.h"
 
@@ -217,7 +216,7 @@ nmk_gpio_disable_lazy_irq(struct nmk_gpio_chip *nmk_chip, unsigned offset)
 	u32 falling = nmk_chip->fimsc & BIT(offset);
 	u32 rising = nmk_chip->rimsc & BIT(offset);
 	int gpio = nmk_chip->chip.base + offset;
-	int irq = NOMADIK_GPIO_TO_IRQ(gpio);
+	int irq = irq_find_mapping(nmk_chip->domain, offset);
 	struct irq_data *d = irq_get_irq_data(irq);
 
 	if (!rising && !falling)
@@ -1428,7 +1427,7 @@ static int nmk_gpio_probe(struct platform_device *dev)
 	platform_set_drvdata(dev, nmk_chip);
 
 	if (!np)
-		irq_start = NOMADIK_GPIO_TO_IRQ(pdata->first_gpio);
+		irq_start = pdata->first_irq;
 	nmk_chip->domain = irq_domain_add_simple(np,
 				NMK_GPIO_PER_CHIP, irq_start,
 				&nmk_gpio_irq_simple_ops, nmk_chip);