ARM: OMAP1: Move 16xx GPIO system clock to platform init code

This way we can remove omap_read/write call from the GPIO driver
and remove include to linux/io.h.

Cc: Grant Likely <grant.likely@secretlab.ca>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap1/gpio16xx.c

@@ -218,6 +218,13 @@ static int __init omap16xx_gpio_init(void)
 	if (!cpu_is_omap16xx())
 		return -EINVAL;
 
+	/*
+	 * Enable system clock for GPIO module.
+	 * The CAM_CLK_CTRL *is* really the right place.
+	 */
+	omap_writel(omap_readl(ULPD_CAM_CLK_CTRL) | 0x04,
+					ULPD_CAM_CLK_CTRL);
+
 	for (i = 0; i < ARRAY_SIZE(omap16xx_gpio_dev); i++)
 		platform_device_register(omap16xx_gpio_dev[i]);
 

drivers/gpio/gpio-omap.c

@@ -1064,13 +1064,6 @@ static void omap_gpio_mod_init(struct gpio_bank *bank, int id)
 						+ OMAP1610_GPIO_IRQSTATUS1);
 			__raw_writew(0x0014, bank->base
 						+ OMAP1610_GPIO_SYSCONFIG);
-
-			/*
-			 * Enable system clock for GPIO module.
-			 * The CAM_CLK_CTRL *is* really the right place.
-			 */
-			omap_writel(omap_readl(ULPD_CAM_CLK_CTRL) | 0x04,
-						ULPD_CAM_CLK_CTRL);
 		}
 		if (cpu_is_omap7xx() && bank->method == METHOD_GPIO_7XX) {
 			__raw_writel(0xffffffff, bank->base