ARM: imx: eliminate macro IRQ_GPIOx()

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

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-pcm038.c b/arch/arm/mach-imx/mach-pcm038.c
index 2f3debe..cfb3903 100644
--- a/arch/arm/mach-imx/mach-pcm038.c
+++ b/arch/arm/mach-imx/mach-pcm038.c
@@ -27,6 +27,7 @@
 #include <linux/mfd/mc13783.h>
 #include <linux/spi/spi.h>
 #include <linux/irq.h>
+#include <linux/gpio.h>
 
 #include <asm/mach-types.h>
 #include <asm/mach/arch.h>
@@ -274,7 +275,7 @@
 static struct spi_board_info pcm038_spi_board_info[] __initdata = {
 	{
 		.modalias = "mc13783",
-		.irq = IRQ_GPIOB(23),
+		/* irq number is run-time assigned */
 		.max_speed_hz = 300000,
 		.bus_num = 0,
 		.chip_select = 0,
@@ -325,6 +326,7 @@
 	mxc_gpio_mode(GPIO_PORTB | 23 | GPIO_GPIO | GPIO_IN);
 
 	imx27_add_spi_imx0(&pcm038_spi0_data);
+	pcm038_spi_board_info[0].irq = gpio_to_irq(IMX_GPIO_NR(2, 23));
 	spi_register_board_info(pcm038_spi_board_info,
 				ARRAY_SIZE(pcm038_spi_board_info));