ARM: OMAP: Move gpio.h to include/linux/platform_data

This way we can remove includes of plat/gpio.h which won't work
with the single zImage support.

Note that we also remove the cpu_class_is_omap2() check
in gpio-omap.c as the drivers should not call it as we need to
make it local to arch/arm/mach-omap2 for single zImage support.

While at it, arrange the related includes in the standard way.

Cc: Grant Likely <grant.likely@secretlab.ca>
Cc: linux-mtd@lists.infradead.org
Cc: alsa-devel@alsa-project.org
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Tony Lindgren <tony@atomide.com>
diff --git a/drivers/gpio/gpio-omap.c b/drivers/gpio/gpio-omap.c
index e6efd77..64fbce3 100644
--- a/drivers/gpio/gpio-omap.c
+++ b/drivers/gpio/gpio-omap.c
@@ -25,11 +25,9 @@
 #include <linux/of.h>
 #include <linux/of_device.h>
 #include <linux/irqdomain.h>
+#include <linux/gpio.h>
+#include <linux/platform_data/gpio-omap.h>
 
-#include <mach/hardware.h>
-#include <asm/irq.h>
-#include <mach/irqs.h>
-#include <asm/gpio.h>
 #include <asm/mach/irq.h>
 
 #define OFF_MODE	1
@@ -385,13 +383,16 @@
 static int gpio_irq_type(struct irq_data *d, unsigned type)
 {
 	struct gpio_bank *bank = irq_data_get_irq_chip_data(d);
-	unsigned gpio;
+	unsigned gpio = 0;
 	int retval;
 	unsigned long flags;
 
-	if (!cpu_class_is_omap2() && d->irq > IH_MPUIO_BASE)
+#ifdef CONFIG_ARCH_OMAP1
+	if (d->irq > IH_MPUIO_BASE)
 		gpio = OMAP_MPUIO(d->irq - IH_MPUIO_BASE);
-	else
+#endif
+
+	if (!gpio)
 		gpio = irq_to_gpio(bank, d->irq);
 
 	if (type & ~IRQ_TYPE_SENSE_MASK)