MODULE_LICENSE("GPL");
static async_cookie_t async_cookie;
+static bool battery_driver_registered;
static int battery_bix_broken_package;
static int battery_notification_delay_ms;
static unsigned int cache_time = 1000;
MODULE_DEVICE_TABLE(acpi, battery_device_ids);
+/* Lists of PMIC ACPI HIDs with an (often better) native battery driver */
+static const char * const acpi_battery_blacklist[] = {
+ "INT33F4", /* X-Powers AXP288 PMIC */
+};
+
enum {
ACPI_BATTERY_ALARM_PRESENT,
ACPI_BATTERY_XINFO_PRESENT,
static void __init acpi_battery_init_async(void *unused, async_cookie_t cookie)
{
+ unsigned int i;
int result;
+ for (i = 0; i < ARRAY_SIZE(acpi_battery_blacklist); i++)
+ if (acpi_dev_present(acpi_battery_blacklist[i], "1", -1)) {
+ pr_info(PREFIX ACPI_BATTERY_DEVICE_NAME
+ ": found native %s PMIC, not loading\n",
+ acpi_battery_blacklist[i]);
+ return;
+ }
+
dmi_check_system(bat_dmi_table);
#ifdef CONFIG_ACPI_PROCFS_POWER
if (result < 0)
acpi_unlock_battery_dir(acpi_battery_dir);
#endif
+ battery_driver_registered = (result == 0);
}
static int __init acpi_battery_init(void)
static void __exit acpi_battery_exit(void)
{
async_synchronize_cookie(async_cookie + 1);
- acpi_bus_unregister_driver(&acpi_battery_driver);
+ if (battery_driver_registered)
+ acpi_bus_unregister_driver(&acpi_battery_driver);
#ifdef CONFIG_ACPI_PROCFS_POWER
- acpi_unlock_battery_dir(acpi_battery_dir);
+ if (acpi_battery_dir)
+ acpi_unlock_battery_dir(acpi_battery_dir);
#endif
}