Wakeup support implementation.

Signed-off-by: Marc Pignat
---

Hi all!

patch agaist 2.6.26, tested on custom ARM board.

Best Regards

Marc



diff --git a/drivers/rtc/rtc-ds1374.c b/drivers/rtc/rtc-ds1374.c
index 640acd2..0527dec 100644
--- a/drivers/rtc/rtc-ds1374.c
+++ b/drivers/rtc/rtc-ds1374.c
@@ -388,6 +388,7 @@ static int ds1374_probe(struct i2c_client *client,
dev_err(&client->dev, "unable to request IRQ\n");
goto out_free;
}
+ device_init_wakeup(&client->dev, 1);
}

ds1374->rtc = rtc_device_register(client->name, &client->dev,
@@ -401,8 +402,10 @@ static int ds1374_probe(struct i2c_client *client,
return 0;

out_irq:
- if (client->irq >= 0)
+ if (client->irq >= 0) {
+ device_init_wakeup(&client->dev, 0);
free_irq(client->irq, client);
+ }

out_free:
i2c_set_clientdata(client, NULL);
@@ -419,6 +422,7 @@ static int __devexit ds1374_remove(struct i2c_client *client)
ds1374->exiting = 1;
mutex_unlock(&ds1374->mutex);

+ device_init_wakeup(&client->dev, 0);
free_irq(client->irq, client);
flush_scheduled_work();
}
@@ -429,12 +433,33 @@ 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,
};
--
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