ACPI: Make sysfs interface in ACPI power optional.

Reference: http://bugzilla.kernel.org/show_bug.cgi?id=9494

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>

1 files changed, 14 insertions, 2 deletions

diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 76ed4f52bebd..76b9bea98b6d 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -31,7 +31,9 @@
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
 #endif
+#ifdef CONFIG_ACPI_SYSFS_POWER
 #include <linux/power_supply.h>
+#endif
 #include <acpi/acpi_bus.h>
 #include <acpi/acpi_drivers.h>
 
@@ -79,7 +81,9 @@ static struct acpi_driver acpi_ac_driver = {
 };
 
 struct acpi_ac {
+#ifdef CONFIG_ACPI_SYSFS_POWER
         struct power_supply charger;
+#endif
         struct acpi_device * device;
         unsigned long state;
 };
@@ -94,7 +98,7 @@ static const struct file_operations acpi_ac_fops = {
         .release = single_release,
 };
 #endif
-
+#ifdef CONFIG_ACPI_SYSFS_POWER
 static int get_ac_property(struct power_supply *psy,
                            enum power_supply_property psp,
                            union power_supply_propval *val)
@@ -113,7 +117,7 @@ static int get_ac_property(struct power_supply *psy,
 static enum power_supply_property ac_props[] = {
         POWER_SUPPLY_PROP_ONLINE,
 };
-
+#endif
 /* --------------------------------------------------------------------------
                                AC Adapter Management
    -------------------------------------------------------------------------- */
@@ -241,7 +245,9 @@ static void acpi_ac_notify(acpi_handle handle, u32 event, void *data)
                 acpi_bus_generate_netlink_event(device->pnp.device_class,
                                                   device->dev.bus_id, event,
                                                   (u32) ac->state);
+#ifdef CONFIG_ACPI_SYSFS_POWER
                 kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE);
+#endif
                 break;
         default:
                 ACPI_DEBUG_PRINT((ACPI_DB_INFO,
@@ -280,12 +286,14 @@ static int acpi_ac_add(struct acpi_device *device)
 #endif
         if (result)
                 goto end;
+#ifdef CONFIG_ACPI_SYSFS_POWER
         ac->charger.name = acpi_device_bid(device);
         ac->charger.type = POWER_SUPPLY_TYPE_MAINS;
         ac->charger.properties = ac_props;
         ac->charger.num_properties = ARRAY_SIZE(ac_props);
         ac->charger.get_property = get_ac_property;
         power_supply_register(&ac->device->dev, &ac->charger);
+#endif
         status = acpi_install_notify_handler(device->handle,
                                              ACPI_ALL_NOTIFY, acpi_ac_notify,
                                              ac);
@@ -319,8 +327,10 @@ static int acpi_ac_resume(struct acpi_device *device)
         old_state = ac->state;
         if (acpi_ac_get_state(ac))
                 return 0;
+#ifdef CONFIG_ACPI_SYSFS_POWER
         if (old_state != ac->state)
                 kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE);
+#endif
         return 0;
 }
 
@@ -337,8 +347,10 @@ static int acpi_ac_remove(struct acpi_device *device, int type)
 
         status = acpi_remove_notify_handler(device->handle,
                                             ACPI_ALL_NOTIFY, acpi_ac_notify);
+#ifdef CONFIG_ACPI_SYSFS_POWER
         if (ac->charger.dev)
                 power_supply_unregister(&ac->charger);
+#endif
 #ifdef CONFIG_ACPI_PROCFS_POWER
         acpi_ac_remove_fs(device);
 #endif