rtc: s35390a: 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>

diff --git a/drivers/rtc/rtc-s35390a.c b/drivers/rtc/rtc-s35390a.c
index 5dab4665ca3bd2c488fd4548f15fce3945bb6fad..449820eeefe813f993348a1f018fd7fd41868c6f 100644 (file)
--- a/drivers/rtc/rtc-s35390a.c
+++ b/drivers/rtc/rtc-s35390a.c
@@ -58,6 +58,13 @@ static const struct i2c_device_id s35390a_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, s35390a_id);
 
+static const struct of_device_id s35390a_of_match[] = {
+       { .compatible = "s35390a" },
+       { .compatible = "sii,s35390a" },
+       { }
+};
+MODULE_DEVICE_TABLE(of, s35390a_of_match);
+
 struct s35390a {
        struct i2c_client *client[8];
        struct rtc_device *rtc;
@@ -502,6 +509,7 @@ static int s35390a_remove(struct i2c_client *client)
 static struct i2c_driver s35390a_driver = {
        .driver         = {
                .name   = "rtc-s35390a",
+               .of_match_table = of_match_ptr(s35390a_of_match),
        },
        .probe          = s35390a_probe,
        .remove         = s35390a_remove,