pinctrl/nomadik: always use the simple irqdomain

Since the simple irqdomain will fall back to a linear domain
if the first_irq provided is <= 0, just use this, just make
sure the first_irq is negative in the device tree case.

Cc: Rob Herring <rob.herring@calxeda.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

drivers/pinctrl/pinctrl-nomadik.c

@@ -1281,6 +1281,7 @@ static int __devinit nmk_gpio_probe(struct platform_device *dev)
 	struct clk *clk;
 	int secondary_irq;
 	void __iomem *base;
+	int irq_start = -1;
 	int irq;
 	int ret;
 
@@ -1384,19 +1385,11 @@ static int __devinit nmk_gpio_probe(struct platform_device *dev)
 
 	platform_set_drvdata(dev, nmk_chip);
 
-	if (np) {
-		/* The DT case will just grab a set of IRQ numbers */
-		nmk_chip->domain = irq_domain_add_linear(np, NMK_GPIO_PER_CHIP,
-				&nmk_gpio_irq_simple_ops, nmk_chip);
-	} else {
-		/* Non-DT legacy mode, use hardwired IRQ numbers */
-		int irq_start;
-
+	if (!np)
 		irq_start = NOMADIK_GPIO_TO_IRQ(pdata->first_gpio);
 	nmk_chip->domain = irq_domain_add_simple(NULL,
 				NMK_GPIO_PER_CHIP, irq_start,
 				&nmk_gpio_irq_simple_ops, nmk_chip);
-	}
 	if (!nmk_chip->domain) {
 		dev_err(&dev->dev, "failed to create irqdomain\n");
 		ret = -ENOSYS;