memory hotplug: rearrange memory hotplug notifier

[linux-2.6-omap-h63xx.git] / drivers / acpi / bus.c

diff --git a/drivers/acpi/bus.c b/drivers/acpi/bus.c
index c26468da429507be4ccef20e3f1b57165d860d85..fb2cff9a2d24679cf99e9c82b9f04a4e32ea4bb0 100644 (file)
--- a/drivers/acpi/bus.c
+++ b/drivers/acpi/bus.c
@@ -39,7 +39,7 @@
 #include <acpi/acpi_drivers.h>
 
 #define _COMPONENT             ACPI_BUS_COMPONENT
-ACPI_MODULE_NAME("acpi_bus")
+ACPI_MODULE_NAME("bus");
 #ifdef CONFIG_X86
 extern void __init acpi_pic_sci_set_trigger(unsigned int irq, u16 trigger);
 #endif
@@ -103,7 +103,9 @@ int acpi_bus_get_status(struct acpi_device *device)
        else if (device->parent)
                device->status = device->parent->status;
        else
-               STRUCT_TO_INT(device->status) = 0x0F;
+               STRUCT_TO_INT(device->status) =
+                   ACPI_STA_DEVICE_PRESENT | ACPI_STA_DEVICE_ENABLED |
+                   ACPI_STA_DEVICE_UI      | ACPI_STA_DEVICE_FUNCTIONING;
 
        if (device->status.functional && !device->status.present) {
                printk(KERN_WARNING PREFIX "Device [%s] status [%08x]: "
@@ -147,7 +149,7 @@ int acpi_bus_get_power(acpi_handle handle, int *state)
                        *state = ACPI_STATE_D0;
        } else {
                /*
-                * Get the device's power state either directly (via _PSC) or 
+                * Get the device's power state either directly (via _PSC) or
                 * indirectly (via power resources).
                 */
                if (device->power.flags.explicit_get) {
@@ -192,22 +194,21 @@ int acpi_bus_set_power(acpi_handle handle, int state)
 
        if (!device->flags.power_manageable) {
                ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device `[%s]' is not power manageable\n",
-                               device->dev.kobj.name));
+                               kobject_name(&device->dev.kobj)));
                return -ENODEV;
        }
        /*
         * Get device's current power state if it's unknown
         * This means device power state isn't initialized or previous setting failed
         */
-       if (!device->flags.force_power_state) {
-               if (device->power.state == ACPI_STATE_UNKNOWN)
-                       acpi_bus_get_power(device->handle, &device->power.state);
-               if (state == device->power.state) {
-                       ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n",
-                                         state));
-                       return 0;
-               }
+       if ((device->power.state == ACPI_STATE_UNKNOWN) || device->flags.force_power_state)
+               acpi_bus_get_power(device->handle, &device->power.state);
+       if ((state == device->power.state) && !device->flags.force_power_state) {
+               ACPI_DEBUG_PRINT((ACPI_DB_INFO, "Device is already at D%d\n",
+                                 state));
+               return 0;
        }
+
        if (!device->power.states[state].flags.valid) {
                printk(KERN_WARNING PREFIX "Device does not support D%d\n", state);
                return -ENODEV;
@@ -261,10 +262,12 @@ int acpi_bus_set_power(acpi_handle handle, int state)
                printk(KERN_WARNING PREFIX
                              "Transitioning device [%s] to D%d\n",
                              device->pnp.bus_id, state);
-       else
+       else {
+               device->power.state = state;
                ACPI_DEBUG_PRINT((ACPI_DB_INFO,
                                  "Device [%s] transitioned to D%d\n",
                                  device->pnp.bus_id, state));
+       }
 
        return result;
 }
@@ -275,6 +278,7 @@ EXPORT_SYMBOL(acpi_bus_set_power);
                                 Event Management
    -------------------------------------------------------------------------- */
 
+#ifdef CONFIG_ACPI_PROC_EVENT
 static DEFINE_SPINLOCK(acpi_bus_event_lock);
 
 LIST_HEAD(acpi_bus_event_list);
@@ -282,15 +286,11 @@ DECLARE_WAIT_QUEUE_HEAD(acpi_bus_event_queue);
 
 extern int event_is_open;
 
-int acpi_bus_generate_event(struct acpi_device *device, u8 type, int data)
+int acpi_bus_generate_proc_event4(const char *device_class, const char *bus_id, u8 type, int data)
 {
-       struct acpi_bus_event *event = NULL;
+       struct acpi_bus_event *event;
        unsigned long flags = 0;
 
-
-       if (!device)
-               return -EINVAL;
-
        /* drop event on the floor if no one's listening */
        if (!event_is_open)
                return 0;
@@ -299,8 +299,8 @@ int acpi_bus_generate_event(struct acpi_device *device, u8 type, int data)
        if (!event)
                return -ENOMEM;
 
-       strcpy(event->device_class, device->pnp.device_class);
-       strcpy(event->bus_id, device->pnp.bus_id);
+       strcpy(event->device_class, device_class);
+       strcpy(event->bus_id, bus_id);
        event->type = type;
        event->data = data;
 
@@ -311,9 +311,20 @@ int acpi_bus_generate_event(struct acpi_device *device, u8 type, int data)
        wake_up_interruptible(&acpi_bus_event_queue);
 
        return 0;
+
 }
 
-EXPORT_SYMBOL(acpi_bus_generate_event);
+EXPORT_SYMBOL_GPL(acpi_bus_generate_proc_event4);
+
+int acpi_bus_generate_proc_event(struct acpi_device *device, u8 type, int data)
+{
+       if (!device)
+               return -EINVAL;
+       return acpi_bus_generate_proc_event4(device->pnp.device_class,
+                                            device->pnp.bus_id, type, data);
+}
+
+EXPORT_SYMBOL(acpi_bus_generate_proc_event);
 
 int acpi_bus_receive_event(struct acpi_bus_event *event)
 {
@@ -359,6 +370,7 @@ int acpi_bus_receive_event(struct acpi_bus_event *event)
 }
 
 EXPORT_SYMBOL(acpi_bus_receive_event);
+#endif /* CONFIG_ACPI_PROC_EVENT */
 
 /* --------------------------------------------------------------------------
                              Notification Handling
@@ -462,7 +474,7 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
                                  "Received BUS CHECK notification for device [%s]\n",
                                  device->pnp.bus_id));
                result = acpi_bus_check_scope(device);
-               /* 
+               /*
                 * TBD: We'll need to outsource certain events to non-ACPI
                 *      drivers via the device manager (device.c).
                 */
@@ -473,7 +485,7 @@ static void acpi_bus_notify(acpi_handle handle, u32 type, void *data)
                                  "Received DEVICE CHECK notification for device [%s]\n",
                                  device->pnp.bus_id));
                result = acpi_bus_check_device(device, NULL);
-               /* 
+               /*
                 * TBD: We'll need to outsource certain events to non-ACPI
                 *      drivers via the device manager (device.c).
                 */
@@ -543,7 +555,7 @@ static int __init acpi_bus_init_irq(void)
        char *message = NULL;
 
 
-       /* 
+       /*
         * Let the system know what interrupt model we are using by
         * evaluating the \_PIC object, if exists.
         */
@@ -684,7 +696,7 @@ static int __init acpi_bus_init(void)
         * the EC device is found in the namespace (i.e. before acpi_initialize_objects()
         * is called).
         *
-        * This is accomplished by looking for the ECDT table, and getting 
+        * This is accomplished by looking for the ECDT table, and getting
         * the EC parameters out of that.
         */
        status = acpi_ec_ecdt_probe();
@@ -699,6 +711,9 @@ static int __init acpi_bus_init(void)
 
        printk(KERN_INFO PREFIX "Interpreter enabled\n");
 
+       /* Initialize sleep structures */
+       acpi_sleep_init();
+
        /*
         * Get the system interrupt model and evaluate \_PIC.
         */