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path: root/drivers/acpi/ac.c
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Diffstat (limited to 'drivers/acpi/ac.c')
-rw-r--r--drivers/acpi/ac.c60
1 files changed, 29 insertions, 31 deletions
diff --git a/drivers/acpi/ac.c b/drivers/acpi/ac.c
index 56205a0b85d..25d3aaebc10 100644
--- a/drivers/acpi/ac.c
+++ b/drivers/acpi/ac.c
@@ -32,9 +32,7 @@
#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>
@@ -86,9 +84,7 @@ 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 long state;
};
@@ -104,26 +100,7 @@ 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)
-{
- struct acpi_ac *ac = to_acpi_ac(psy);
- switch (psp) {
- case POWER_SUPPLY_PROP_ONLINE:
- val->intval = ac->state;
- break;
- default:
- return -EINVAL;
- }
- return 0;
-}
-static enum power_supply_property ac_props[] = {
- POWER_SUPPLY_PROP_ONLINE,
-};
-#endif
/* --------------------------------------------------------------------------
AC Adapter Management
-------------------------------------------------------------------------- */
@@ -146,6 +123,35 @@ static int acpi_ac_get_state(struct acpi_ac *ac)
return 0;
}
+/* --------------------------------------------------------------------------
+ sysfs I/F
+ -------------------------------------------------------------------------- */
+static int get_ac_property(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct acpi_ac *ac = to_acpi_ac(psy);
+
+ if (!ac)
+ return -ENODEV;
+
+ if (acpi_ac_get_state(ac))
+ return -ENODEV;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_ONLINE:
+ val->intval = ac->state;
+ break;
+ default:
+ return -EINVAL;
+ }
+ return 0;
+}
+
+static enum power_supply_property ac_props[] = {
+ POWER_SUPPLY_PROP_ONLINE,
+};
+
#ifdef CONFIG_ACPI_PROCFS_POWER
/* --------------------------------------------------------------------------
FS Interface (/proc)
@@ -247,9 +253,7 @@ static void acpi_ac_notify(struct acpi_device *device, u32 event)
dev_name(&device->dev), event,
(u32) ac->state);
acpi_notifier_call_chain(device, event, (u32) ac->state);
-#ifdef CONFIG_ACPI_SYSFS_POWER
kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE);
-#endif
}
return;
@@ -282,14 +286,12 @@ 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
printk(KERN_INFO PREFIX "%s [%s] (%s)\n",
acpi_device_name(device), acpi_device_bid(device),
@@ -316,10 +318,8 @@ 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;
}
@@ -333,10 +333,8 @@ static int acpi_ac_remove(struct acpi_device *device, int type)
ac = acpi_driver_data(device);
-#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