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is no longer valid.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-rx51-peripherals.c

@@ -169,7 +169,6 @@ static struct spi_board_info rx51_peripherals_spi_board_info[] __initdata = {
 		.modalias		= "tsc2005",
 		.bus_num		= 1,
 		.chip_select		= 0,
-		.irq			= OMAP_GPIO_IRQ(RX51_TSC2005_IRQ_GPIO),
 		.max_speed_hz		= 6000000,
 		.controller_data	= &tsc2005_mcspi_config,
 		.platform_data		= &tsc2005_pdata,
@@ -1121,6 +1120,8 @@ static void __init rx51_init_tsc2005(void)
 		"tsc2005 reset");
 	if (r >= 0) {
 		tsc2005_pdata.set_reset = rx51_tsc2005_set_reset;
+		rx51_peripherals_spi_board_info[RX51_SPI_TSC2005].irq =
+					gpio_to_irq(RX51_TSC2005_IRQ_GPIO);
 	} else {
 		printk(KERN_ERR "unable to get %s GPIO\n", "tsc2005 reset");
 		tsc2005_pdata.esd_timeout_ms = 0;