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--- linux-2.6.35.x86_64/drivers/acpi/battery.c.orig 2010-12-23 10:42:09.291854595 -0500
+++ linux-2.6.35.x86_64/drivers/acpi/battery.c 2010-12-23 10:44:30.996045838 -0500
@@ -596,9 +596,10 @@
}
}
-static int acpi_battery_update(struct acpi_battery *battery)
+static int acpi_battery_update(struct acpi_battery *battery, bool get_info)
{
int result, old_present = acpi_battery_present(battery);
+ int old_power_unit = battery->power_unit;
result = acpi_battery_get_status(battery);
if (result)
return result;
@@ -621,6 +622,16 @@
if (!battery->bat.dev)
sysfs_add_battery(battery);
#endif
+ if (get_info) {
+ acpi_battery_get_info(battery);
+#ifdef CONFIG_ACPI_SYSFS_POWER
+ if (old_power_unit != battery->power_unit) {
+ /* The battery has changed its reporting units */
+ sysfs_remove_battery(battery);
+ sysfs_add_battery(battery);
+ }
+#endif
+ }
result = acpi_battery_get_state(battery);
acpi_battery_quirks2(battery);
return result;
@@ -798,7 +809,7 @@
static int acpi_battery_read(int fid, struct seq_file *seq)
{
struct acpi_battery *battery = seq->private;
- int result = acpi_battery_update(battery);
+ int result = acpi_battery_update(battery, false);
return acpi_print_funcs[fid](seq, result);
}
@@ -913,7 +924,8 @@
#ifdef CONFIG_ACPI_SYSFS_POWER
old = battery->bat.dev;
#endif
- acpi_battery_update(battery);
+ acpi_battery_update(battery, (event == ACPI_BATTERY_NOTIFY_INFO ? true
+ : false));
acpi_bus_generate_proc_event(device, event,
acpi_battery_present(battery));
acpi_bus_generate_netlink_event(device->pnp.device_class,
@@ -944,7 +956,7 @@
if (ACPI_SUCCESS(acpi_get_handle(battery->device->handle,
"_BIX", &handle)))
set_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags);
- acpi_battery_update(battery);
+ acpi_battery_update(battery, false);
#ifdef CONFIG_ACPI_PROCFS_POWER
result = acpi_battery_add_fs(device);
#endif
@@ -987,7 +999,7 @@
return -EINVAL;
battery = acpi_driver_data(device);
battery->update_time = 0;
- acpi_battery_update(battery);
+ acpi_battery_update(battery, true);
return 0;
}
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