summaryrefslogtreecommitdiff
path: root/drivers/power/olpc_battery.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/power/olpc_battery.c')
-rw-r--r--drivers/power/olpc_battery.c75
1 files changed, 47 insertions, 28 deletions
diff --git a/drivers/power/olpc_battery.c b/drivers/power/olpc_battery.c
index 0b0ff3a936a6..7385092f9bc8 100644
--- a/drivers/power/olpc_battery.c
+++ b/drivers/power/olpc_battery.c
@@ -519,29 +519,35 @@ 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,
};
-void olpc_battery_trigger_uevent(unsigned long cause)
+static int olpc_battery_suspend(struct platform_device *pdev,
+ pm_message_t state)
{
- if (cause & EC_SCI_SRC_ACPWR)
- kobject_uevent(&olpc_ac.dev->kobj, KOBJ_CHANGE);
- if (cause & (EC_SCI_SRC_BATERR|EC_SCI_SRC_BATSOC|EC_SCI_SRC_BATTERY))
- kobject_uevent(&olpc_bat.dev->kobj, KOBJ_CHANGE);
+ if (device_may_wakeup(olpc_ac.dev))
+ olpc_ec_wakeup_set(EC_SCI_SRC_ACPWR);
+ else
+ olpc_ec_wakeup_clear(EC_SCI_SRC_ACPWR);
+
+ if (device_may_wakeup(olpc_bat.dev))
+ olpc_ec_wakeup_set(EC_SCI_SRC_BATTERY | EC_SCI_SRC_BATSOC
+ | EC_SCI_SRC_BATERR);
+ else
+ olpc_ec_wakeup_clear(EC_SCI_SRC_BATTERY | EC_SCI_SRC_BATSOC
+ | EC_SCI_SRC_BATERR);
+
+ return 0;
}
-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 +564,10 @@ 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 +576,7 @@ 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 +588,12 @@ static int __init olpc_bat_init(void)
if (ret)
goto error_failed;
- goto success;
+ if (olpc_ec_wakeup_available()) {
+ device_set_wakeup_capable(olpc_ac.dev, true);
+ device_set_wakeup_capable(olpc_bat.dev, true);
+ }
+
+ return 0;
error_failed:
device_remove_bin_file(olpc_bat.dev, &olpc_bat_eeprom);
@@ -595,23 +601,36 @@ 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;
}
-module_init(olpc_bat_init);
-module_exit(olpc_bat_exit);
+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_driver = {
+ .driver = {
+ .name = "olpc-battery",
+ .owner = THIS_MODULE,
+ .of_match_table = olpc_battery_ids,
+ },
+ .probe = olpc_battery_probe,
+ .remove = __devexit_p(olpc_battery_remove),
+ .suspend = olpc_battery_suspend,
+};
+
+module_platform_driver(olpc_battery_driver);
MODULE_AUTHOR("David Woodhouse <dwmw2@infradead.org>");
MODULE_LICENSE("GPL");