diff options
| -rw-r--r-- | Documentation/devicetree/bindings/power_supply/olpc_battery.txt | 5 | ||||
| -rw-r--r-- | drivers/power/olpc_battery.c | 55 |
2 files changed, 39 insertions, 21 deletions
diff --git a/Documentation/devicetree/bindings/power_supply/olpc_battery.txt b/Documentation/devicetree/bindings/power_supply/olpc_battery.txt new file mode 100644 index 000000000000..c8901b3992d9 --- /dev/null +++ b/Documentation/devicetree/bindings/power_supply/olpc_battery.txt @@ -0,0 +1,5 @@ +OLPC battery +~~~~~~~~~~~~ + +Required properties: + - compatible : "olpc,xo1-battery" diff --git a/drivers/power/olpc_battery.c b/drivers/power/olpc_battery.c index 0b0ff3a936a6..9972268fea72 100644 --- a/drivers/power/olpc_battery.c +++ b/drivers/power/olpc_battery.c @@ -519,9 +519,8 @@ static struct device_attribute olpc_bat_error = { * Initialisation *********************************************************************/ -static struct platform_device *bat_pdev; - static struct power_supply olpc_bat = { + .name = "olpc-battery", .get_property = olpc_bat_get_property, .use_for_apm = 1, }; @@ -534,14 +533,11 @@ void olpc_battery_trigger_uevent(unsigned long cause) kobject_uevent(&olpc_bat.dev->kobj, KOBJ_CHANGE); } -static int __init olpc_bat_init(void) +static int __devinit olpc_battery_probe(struct platform_device *pdev) { - int ret = 0; + int ret; uint8_t status; - if (!olpc_platform_info.ecver) - return -ENXIO; - /* * We've seen a number of EC protocol changes; this driver requires * the latest EC protocol, supported by 0x44 and above. @@ -558,15 +554,10 @@ static int __init olpc_bat_init(void) /* Ignore the status. It doesn't actually matter */ - bat_pdev = platform_device_register_simple("olpc-battery", 0, NULL, 0); - if (IS_ERR(bat_pdev)) - return PTR_ERR(bat_pdev); - - ret = power_supply_register(&bat_pdev->dev, &olpc_ac); + ret = power_supply_register(&pdev->dev, &olpc_ac); if (ret) - goto ac_failed; + return ret; - olpc_bat.name = bat_pdev->name; if (olpc_board_at_least(olpc_board_pre(0xd0))) { /* XO-1.5 */ olpc_bat.properties = olpc_xo15_bat_props; olpc_bat.num_properties = ARRAY_SIZE(olpc_xo15_bat_props); @@ -575,7 +566,7 @@ static int __init olpc_bat_init(void) olpc_bat.num_properties = ARRAY_SIZE(olpc_xo1_bat_props); } - ret = power_supply_register(&bat_pdev->dev, &olpc_bat); + ret = power_supply_register(&pdev->dev, &olpc_bat); if (ret) goto battery_failed; @@ -587,7 +578,7 @@ static int __init olpc_bat_init(void) if (ret) goto error_failed; - goto success; + return 0; error_failed: device_remove_bin_file(olpc_bat.dev, &olpc_bat_eeprom); @@ -595,22 +586,44 @@ eeprom_failed: power_supply_unregister(&olpc_bat); battery_failed: power_supply_unregister(&olpc_ac); -ac_failed: - platform_device_unregister(bat_pdev); -success: return ret; } -static void __exit olpc_bat_exit(void) +static int __devexit olpc_battery_remove(struct platform_device *pdev) { device_remove_file(olpc_bat.dev, &olpc_bat_error); device_remove_bin_file(olpc_bat.dev, &olpc_bat_eeprom); power_supply_unregister(&olpc_bat); power_supply_unregister(&olpc_ac); - platform_device_unregister(bat_pdev); + return 0; } +static const struct of_device_id olpc_battery_ids[] __devinitconst = { + { .compatible = "olpc,xo1-battery" }, + {} +}; +MODULE_DEVICE_TABLE(of, olpc_battery_ids); + +static struct platform_driver olpc_battery_drv = { + .driver = { + .name = "olpc-battery", + .owner = THIS_MODULE, + .of_match_table = olpc_battery_ids, + }, + .probe = olpc_battery_probe, + .remove = __devexit_p(olpc_battery_remove), +}; + +static int __init olpc_bat_init(void) +{ + return platform_driver_register(&olpc_battery_drv); +} module_init(olpc_bat_init); + +static void __exit olpc_bat_exit(void) +{ + platform_driver_unregister(&olpc_battery_drv); +} module_exit(olpc_bat_exit); MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>"); |