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authorMarc Pignat <marc.pignat@hevs.ch>2008-10-15 22:02:56 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-16 11:21:39 -0700
commit986e36a5b817de01733d46aa623406106d661cec (patch)
treecab630f3d89ce9bfacb35804b18366e90a5666d9 /drivers/rtc
parent5d5b4d74f9ae85bbd558a708678b6927f962e75d (diff)
rtc: DS1374 wakeup support
Wakeup support implementation. Signed-off-by: Marc Pignat <marc.pignat@hevs.ch> Cc: David Brownell <david-b@pacbell.net> Cc: Alessandro Zummo <a.zummo@towertech.it> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'drivers/rtc')
-rw-r--r--drivers/rtc/rtc-ds1374.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/drivers/rtc/rtc-ds1374.c b/drivers/rtc/rtc-ds1374.c
index a150418fba7..a5b0fc09f0c 100644
--- a/drivers/rtc/rtc-ds1374.c
+++ b/drivers/rtc/rtc-ds1374.c
@@ -429,12 +429,33 @@ static int __devexit ds1374_remove(struct i2c_client *client)
return 0;
}
+#ifdef CONFIG_PM
+static int ds1374_suspend(struct i2c_client *client, pm_message_t state)
+{
+ if (client->irq >= 0 && device_may_wakeup(&client->dev))
+ enable_irq_wake(client->irq);
+ return 0;
+}
+
+static int ds1374_resume(struct i2c_client *client)
+{
+ if (client->irq >= 0 && device_may_wakeup(&client->dev))
+ disable_irq_wake(client->irq);
+ return 0;
+}
+#else
+#define ds1374_suspend NULL
+#define ds1374_resume NULL
+#endif
+
static struct i2c_driver ds1374_driver = {
.driver = {
.name = "rtc-ds1374",
.owner = THIS_MODULE,
},
.probe = ds1374_probe,
+ .suspend = ds1374_suspend,
+ .resume = ds1374_resume,
.remove = __devexit_p(ds1374_remove),
.id_table = ds1374_id,
};