rtc: rx8010: 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-rx8010.c b/drivers/rtc/rtc-rx8010.c
index d08da371912cd868e496cbfd417d59067d04ce3a..1ed3403ff8ac23ae1c9c2923b76f3f8aff1c9c11 100644 (file)
--- a/drivers/rtc/rtc-rx8010.c
+++ b/drivers/rtc/rtc-rx8010.c
@@ -59,6 +59,12 @@ static const struct i2c_device_id rx8010_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, rx8010_id);
 
+static const struct of_device_id rx8010_of_match[] = {
+       { .compatible = "epson,rx8010" },
+       { }
+};
+MODULE_DEVICE_TABLE(of, rx8010_of_match);
+
 struct rx8010_data {
        struct i2c_client *client;
        struct rtc_device *rtc;
@@ -487,6 +493,7 @@ static int rx8010_probe(struct i2c_client *client,
 static struct i2c_driver rx8010_driver = {
        .driver = {
                .name = "rtc-rx8010",
+               .of_match_table = of_match_ptr(rx8010_of_match),
        },
        .probe          = rx8010_probe,
        .id_table       = rx8010_id,