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authorDaniel Drake <dsd@laptop.org>2011-08-10 21:46:02 +0100
committerAnton Vorontsov <cbouatmailru@gmail.com>2011-08-19 21:03:25 +0400
commitcae659af87288a4b1723cdf94d713ef7fb4c56d9 (patch)
treeca7f38e6148bc0ac3a5e7f4522b8d8d3718f49d2 /drivers/power/olpc_battery.c
parentc3503fd02558245ebbb0b48f3ae1d62416e3fd2a (diff)
olpc_battery: Add wakeup support
Battery and AC events can now be used to wake up the system from suspend. Signed-off-by: Daniel Drake <dsd@laptop.org> Acked-by: Andres Salomon <dilinger@queued.net> Signed-off-by: Anton Vorontsov <cbouatmailru@gmail.com>
Diffstat (limited to 'drivers/power/olpc_battery.c')
-rw-r--r--drivers/power/olpc_battery.c24
1 files changed, 24 insertions, 0 deletions
diff --git a/drivers/power/olpc_battery.c b/drivers/power/olpc_battery.c
index 9972268fea72..46a2f07edab1 100644
--- a/drivers/power/olpc_battery.c
+++ b/drivers/power/olpc_battery.c
@@ -533,6 +533,24 @@ void olpc_battery_trigger_uevent(unsigned long cause)
kobject_uevent(&olpc_bat.dev->kobj, KOBJ_CHANGE);
}
+static int olpc_battery_suspend(struct platform_device *pdev,
+ pm_message_t state)
+{
+ 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 __devinit olpc_battery_probe(struct platform_device *pdev)
{
int ret;
@@ -578,6 +596,11 @@ static int __devinit olpc_battery_probe(struct platform_device *pdev)
if (ret)
goto error_failed;
+ 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:
@@ -612,6 +635,7 @@ static struct platform_driver olpc_battery_drv = {
},
.probe = olpc_battery_probe,
.remove = __devexit_p(olpc_battery_remove),
+ .suspend = olpc_battery_suspend,
};
static int __init olpc_bat_init(void)