ACPI / Battery: Add a _BIX quirk for NEC LZ750/LS
[linux-3.10.git] / drivers / acpi / battery.c
index 0cc384b..99427d7 100644 (file)
@@ -68,6 +68,7 @@ MODULE_AUTHOR("Alexey Starikovskiy <astarikovskiy@suse.de>");
 MODULE_DESCRIPTION("ACPI Battery Driver");
 MODULE_LICENSE("GPL");
 
+static int battery_bix_broken_package;
 static unsigned int cache_time = 1000;
 module_param(cache_time, uint, 0644);
 MODULE_PARM_DESC(cache_time, "cache time in milliseconds");
@@ -117,6 +118,7 @@ struct acpi_battery {
        struct acpi_device *device;
        struct notifier_block pm_nb;
        unsigned long update_time;
+       int revision;
        int rate_now;
        int capacity_now;
        int voltage_now;
@@ -359,6 +361,7 @@ static struct acpi_offsets info_offsets[] = {
 };
 
 static struct acpi_offsets extended_info_offsets[] = {
+       {offsetof(struct acpi_battery, revision), 0},
        {offsetof(struct acpi_battery, power_unit), 0},
        {offsetof(struct acpi_battery, design_capacity), 0},
        {offsetof(struct acpi_battery, full_charge_capacity), 0},
@@ -441,7 +444,12 @@ static int acpi_battery_get_info(struct acpi_battery *battery)
                ACPI_EXCEPTION((AE_INFO, status, "Evaluating %s", name));
                return -ENODEV;
        }
-       if (test_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags))
+
+       if (battery_bix_broken_package)
+               result = extract_package(battery, buffer.pointer,
+                               extended_info_offsets + 1,
+                               ARRAY_SIZE(extended_info_offsets) - 1);
+       else if (test_bit(ACPI_BATTERY_XINFO_PRESENT, &battery->flags))
                result = extract_package(battery, buffer.pointer,
                                extended_info_offsets,
                                ARRAY_SIZE(extended_info_offsets));
@@ -929,7 +937,7 @@ static int acpi_battery_read_##_name(struct seq_file *seq, void *offset) \
 } \
 static int acpi_battery_##_name##_open_fs(struct inode *inode, struct file *file) \
 { \
-       return single_open(file, acpi_battery_read_##_name, PDE(inode)->data); \
+       return single_open(file, acpi_battery_read_##_name, PDE_DATA(inode)); \
 }
 
 DECLARE_FILE_FUNCTIONS(info);
@@ -1062,6 +1070,17 @@ static int battery_notify(struct notifier_block *nb,
        return 0;
 }
 
+static struct dmi_system_id bat_dmi_table[] = {
+       {
+               .ident = "NEC LZ750/LS",
+               .matches = {
+                       DMI_MATCH(DMI_SYS_VENDOR, "NEC"),
+                       DMI_MATCH(DMI_PRODUCT_NAME, "PC-LZ750LS"),
+               },
+       },
+       {},
+};
+
 static int acpi_battery_add(struct acpi_device *device)
 {
        int result = 0;
@@ -1172,6 +1191,8 @@ static void __init acpi_battery_init_async(void *unused, async_cookie_t cookie)
        if (!acpi_battery_dir)
                return;
 #endif
+       if (dmi_check_system(bat_dmi_table))
+               battery_bix_broken_package = 1;
        if (acpi_bus_register_driver(&acpi_battery_driver) < 0) {
 #ifdef CONFIG_ACPI_PROCFS_POWER
                acpi_unlock_battery_dir(acpi_battery_dir);