ARM: imx: pass gpio than irq number into mxc_expio_init

Change mxc_expio_init interface a little bit to have gpio than irq
number passed in.  With the change, gpio_to_irq can be called inside
mxc_expio_init to get irq number, so that MXC_IRQ_TO_GPIO can be
removed.

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Dong Aisheng <dong.aisheng@linaro.org>
diff --git a/arch/arm/mach-imx/mach-mx35_3ds.c b/arch/arm/mach-imx/mach-mx35_3ds.c
index ad63e6e..596f237 100644
--- a/arch/arm/mach-imx/mach-mx35_3ds.c
+++ b/arch/arm/mach-imx/mach-mx35_3ds.c
@@ -132,8 +132,6 @@
 	.dev.platform_data = &mx35_3ds_lcd_data,
 };
 
-#define EXPIO_PARENT_INT	gpio_to_irq(IMX_GPIO_NR(1, 1))
-
 static const struct imxuart_platform_data uart_pdata __initconst = {
 	.flags = IMXUART_HAVE_RTSCTS,
 };
@@ -580,7 +578,7 @@
 	imx35_add_mxc_nand(&mx35pdk_nand_board_info);
 	imx35_add_sdhci_esdhc_imx(0, NULL);
 
-	if (mxc_expio_init(MX35_CS5_BASE_ADDR, EXPIO_PARENT_INT))
+	if (mxc_expio_init(MX35_CS5_BASE_ADDR, IMX_GPIO_NR(1, 1)))
 		pr_warn("Init of the debugboard failed, all "
 				"devices on the debugboard are unusable.\n");
 	imx35_add_imx_i2c0(&mx35_3ds_i2c0_data);