1 files changed, 38 insertions, 0 deletions

diff --git a/arch/arm/plat-omap/omap_device.c b/arch/arm/plat-omap/omap_device.c
index 150112e3ffc8..0f519829e795 100644
--- a/arch/arm/plat-omap/omap_device.c
+++ b/arch/arm/plat-omap/omap_device.c
@@ -1133,3 +1133,41 @@ static int __init omap_device_init(void)
         return 0;
 }
 core_initcall(omap_device_init);
+
+/**
+ * omap_device_late_idle - idle devices without drivers
+ * @dev: struct device * associated with omap_device
+ * @data: unused
+ *
+ * Check the driver bound status of this device, and idle it
+ * if there is no driver attached.
+ */
+static int __init omap_device_late_idle(struct device *dev, void *data)
+{
+        struct platform_device *pdev = to_platform_device(dev);
+        struct omap_device *od = to_omap_device(pdev);
+
+        if (!od)
+                return 0;
+
+        /*
+         * If omap_device state is enabled, but has no driver bound,
+         * idle it.
+         */
+        if (od->_driver_status != BUS_NOTIFY_BOUND_DRIVER) {
+                if (od->_state == OMAP_DEVICE_STATE_ENABLED) {
+                        dev_warn(dev, "%s: enabled but no driver.  Idling\n",
+                                 __func__);
+                        omap_device_idle(pdev);
+                }
+        }
+
+        return 0;
+}
+
+static int __init omap_device_late_init(void)
+{
+        bus_for_each_dev(&platform_bus_type, NULL, NULL, omap_device_late_idle);
+        return 0;
+}
+late_initcall(omap_device_late_init);