+
+#ifdef CONFIG_ARCH_OMAP16XX
+
+#include <linux/platform_device.h>
+
+static int omap_mpuio_suspend_late(struct platform_device *pdev, pm_message_t mesg)
+{
+ struct gpio_bank *bank = platform_get_drvdata(pdev);
+ void __iomem *mask_reg = bank->base + OMAP_MPUIO_GPIO_MASKIT;
+
+ spin_lock(&bank->lock);
+ bank->saved_wakeup = __raw_readl(mask_reg);
+ __raw_writel(0xffff & ~bank->suspend_wakeup, mask_reg);
+ spin_unlock(&bank->lock);
+
+ return 0;
+}
+
+static int omap_mpuio_resume_early(struct platform_device *pdev)
+{
+ struct gpio_bank *bank = platform_get_drvdata(pdev);
+ void __iomem *mask_reg = bank->base + OMAP_MPUIO_GPIO_MASKIT;
+
+ spin_lock(&bank->lock);
+ __raw_writel(bank->saved_wakeup, mask_reg);
+ spin_unlock(&bank->lock);
+
+ return 0;
+}
+
+/* use platform_driver for this, now that there's no longer any
+ * point to sys_device (other than not disturbing old code).
+ */
+static struct platform_driver omap_mpuio_driver = {
+ .suspend_late = omap_mpuio_suspend_late,
+ .resume_early = omap_mpuio_resume_early,
+ .driver = {
+ .name = "mpuio",
+ },
+};
+
+static struct platform_device omap_mpuio_device = {
+ .name = "mpuio",
+ .id = -1,
+ .dev = {
+ .driver = &omap_mpuio_driver.driver,
+ }
+ /* could list the /proc/iomem resources */
+};
+
+static inline void mpuio_init(void)
+{
+ if (platform_driver_register(&omap_mpuio_driver) == 0)
+ (void) platform_device_register(&omap_mpuio_device);
+}
+
+#else
+static inline void mpuio_init(void) {}
+#endif /* 16xx */
+