rtc: isl1208: Add OF device ID table

The driver doesn't have a struct of_device_id table but supported devices
are registered via Device Trees. This is working on the assumption that a
I2C device registered via OF will always match a legacy I2C device ID and
that the MODALIAS reported will always be of the form i2c:<device>.

But this could change in the future so the correct approach is to have an
OF device ID table if the devices are registered via OF.

Signed-off-by: Javier Martinez Canillas <javier@osg.samsung.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

1 files changed, 10 insertions, 2 deletions

diff --git a/drivers/rtc/rtc-isl1208.c b/drivers/rtc/rtc-isl1208.c
index 2893785f0eba..8dd299c6a1f3 100644
--- a/drivers/rtc/rtc-isl1208.c
+++ b/drivers/rtc/rtc-isl1208.c
@@ -687,10 +687,18 @@ static const struct i2c_device_id isl1208_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, isl1208_id);
 
+static const struct of_device_id isl1208_of_match[] = {
+        { .compatible = "isil,isl1208" },
+        { .compatible = "isil,isl1218" },
+        { }
+};
+MODULE_DEVICE_TABLE(of, isl1208_of_match);
+
 static struct i2c_driver isl1208_driver = {
         .driver = {
-                   .name = "rtc-isl1208",
-                   },
+                .name = "rtc-isl1208",
+                .of_match_table = of_match_ptr(isl1208_of_match),
+        },
         .probe = isl1208_probe,
         .remove = isl1208_remove,
         .id_table = isl1208_id,