ARM: imx: eliminate macro IOMUX_TO_IRQ()

This patch changes all the static gpio irq number assigning with
IOMUX_TO_IRQ() to run-time assigning with gpio_to_irq call, and
in turn eliminates the macro IOMUX_TO_IRQ().

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-qong.c b/arch/arm/mach-imx/mach-qong.c
index 2606210..b6f11d2 100644
--- a/arch/arm/mach-imx/mach-qong.c
+++ b/arch/arm/mach-imx/mach-qong.c
@@ -51,8 +51,6 @@
 	(QONG_FPGA_BASEADDR + QONG_DNET_ID * QONG_FPGA_PERIPH_SIZE)
 #define QONG_DNET_SIZE		0x00001000
 
-#define QONG_FPGA_IRQ		IOMUX_TO_IRQ(MX31_PIN_DTR_DCE1)
-
 static const struct imxuart_platform_data uart_pdata __initconst = {
 	.flags = IMXUART_HAVE_RTSCTS,
 };
@@ -78,8 +76,7 @@
 		.end	= QONG_DNET_BASEADDR + QONG_DNET_SIZE - 1,
 		.flags	= IORESOURCE_MEM,
 	}, {
-		.start	= QONG_FPGA_IRQ,
-		.end	= QONG_FPGA_IRQ,
+		/* irq number is run-time assigned */
 		.flags	= IORESOURCE_IRQ,
 	},
 };
@@ -95,6 +92,10 @@
 {
 	int ret;
 
+	dnet_resources[1].start =
+		gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1));
+	dnet_resources[1].end =
+		gpio_to_irq(IOMUX_TO_GPIO(MX31_PIN_DTR_DCE1));
 	ret = platform_device_register(&dnet_device);
 	return ret;
 }