ARM: tegra: seaboard: Don't gpio_request() ISL29018_IRQ

Don't call gpio_request() or gpio_direction_input() for ISL29018_IRQ.
This pin is only used as an IRQ, and hence no GPIO configuration should
be necessary; the GPIO/IRQ driver should (and does) perform any required
setup when the IRQ is requested.
Signed-off-by: NStephen Warren <swarren@nvidia.com>
Acked-by: NOlof Johansson <olof@lixom.net>

arch/arm/mach-tegra/board-seaboard.c

@@ -200,9 +200,6 @@ static int seaboard_ehci_init(void)
 
 static void __init seaboard_i2c_init(void)
 {
-	gpio_request(TEGRA_GPIO_ISL29018_IRQ, "isl29018");
-	gpio_direction_input(TEGRA_GPIO_ISL29018_IRQ);
-
 	isl29018_device.irq = gpio_to_irq(TEGRA_GPIO_ISL29018_IRQ);
 	i2c_register_board_info(0, &isl29018_device, 1);