ARM: OMAP: boards: Fix OMAP_GPIO_IRQ usage with gpio_to_irq()

The following commits change gpio-omap to use dynamic
IRQ allocation:

25db711 gpio/omap: Fix IRQ handling for SPARSE_IRQ
384ebe1 gpio/omap: Add DT support to GPIO driver

With dynamic allocation of IRQ the usage of OMAP_GPIO_IRQ
is no longer valid. We must be using gpio_to_irq() instead.

Signed-off-by: Tarun Kanti DebBarma <tarun.kanti@ti.com>
[tony@atomide.com: updated comments]
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/board-omap3evm.c

@@ -487,7 +487,6 @@ static struct platform_device omap3evm_wlan_regulator = {
 };
 
 struct wl12xx_platform_data omap3evm_wlan_data __initdata = {
-	.irq = OMAP_GPIO_IRQ(OMAP3EVM_WLAN_IRQ_GPIO),
 	.board_ref_clock = WL12XX_REFCLOCK_38, /* 38.4 MHz */
 };
 #endif
@@ -623,6 +622,7 @@ static void __init omap3_evm_wl12xx_init(void)
 	int ret;
 
 	/* WL12xx WLAN Init */
+	omap3evm_wlan_data.irq = gpio_to_irq(OMAP3EVM_WLAN_IRQ_GPIO);
 	ret = wl12xx_set_platform_data(&omap3evm_wlan_data);
 	if (ret)
 		pr_err("error setting wl12xx data: %d\n", ret);