i2c/tsl2550: Add power management added

Signed-off-by: Rodolfo Giometti <giometti@linux.it>
Signed-off-by: Jean Delvare <khali@linux-fr.org>

1 files changed, 21 insertions, 0 deletions

diff --git a/drivers/i2c/chips/tsl2550.c b/drivers/i2c/chips/tsl2550.c
index 3de4b19ba08f..a10fd2791a69 100644
--- a/drivers/i2c/chips/tsl2550.c
+++ b/drivers/i2c/chips/tsl2550.c
@@ -432,11 +432,32 @@ static int __devexit tsl2550_remove(struct i2c_client *client)
         return 0;
 }
 
+#ifdef CONFIG_PM
+
+static int tsl2550_suspend(struct i2c_client *client, pm_message_t mesg)
+{
+        return tsl2550_set_power_state(client, 0);
+}
+
+static int tsl2550_resume(struct i2c_client *client)
+{
+        return tsl2550_set_power_state(client, 1);
+}
+
+#else
+
+#define tsl2550_suspend         NULL
+#define tsl2550_resume          NULL
+
+#endif /* CONFIG_PM */
+
 static struct i2c_driver tsl2550_driver = {
         .driver = {
                 .name   = TSL2550_DRV_NAME,
                 .owner  = THIS_MODULE,
         },
+        .suspend = tsl2550_suspend,
+        .resume = tsl2550_resume,
         .probe  = tsl2550_probe,
         .remove = __devexit_p(tsl2550_remove),
 };