power: supply: max17040: Add OF device ID table

Javier Martinez Canillas · sre · commit da28122c82fc · 2017-04-14T01:41:33.000+02:00
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:&lt;device&gt;.

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 &lt;javier@osg.samsung.com&gt;
Signed-off-by: Sebastian Reichel &lt;sre@kernel.org&gt;
diff --git a/drivers/power/supply/max17040_battery.c b/drivers/power/supply/max17040_battery.c
@@ -277,9 +277,17 @@ static const struct i2c_device_id max17040_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, max17040_id);
 
+static const struct of_device_id max17040_of_match[] = {
+	{ .compatible = "maxim,max17040" },
+	{ .compatible = "maxim,max77836-battery" },
+	{ },
+};
+MODULE_DEVICE_TABLE(of, max17040_of_match);
+
 static struct i2c_driver max17040_i2c_driver = {
 	.driver	= {
 		.name	= "max17040",
+		.of_match_table = max17040_of_match,
 		.pm	= MAX17040_PM_OPS,
 	},
 	.probe		= max17040_probe,
