[PATCH 3/4] iio: light: max44009: add missing OF device matching

[Krzysztof Kozlowski]

The driver currently matches only via i2c_device_id, but also has
of_device_id table:

  drivers/iio/light/max44009.c:545:34: error: ‘max44009_of_match’ defined but not used [-Werror=unused-const-variable=]

Fixes: 6aef699a7d7e ("iio: light: add driver for MAX44009")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
---
 drivers/iio/light/max44009.c | 13 +++++++------
 1 file changed, 7 insertions(+), 6 deletions(-)

diff --git a/drivers/iio/light/max44009.c b/drivers/iio/light/max44009.c
index 3dadace09fe2..274e0b679ca2 100644
--- a/drivers/iio/light/max44009.c
+++ b/drivers/iio/light/max44009.c
@@ -527,6 +527,12 @@ static int max44009_probe(struct i2c_client *client)
 	return devm_iio_device_register(&client->dev, indio_dev);
 }
 
+static const struct of_device_id max44009_of_match[] __maybe_unused = {
+	{ .compatible = "maxim,max44009" },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, max44009_of_match);
+
 static const struct i2c_device_id max44009_id[] = {
 	{ "max44009", 0 },
 	{ }
@@ -536,18 +542,13 @@ MODULE_DEVICE_TABLE(i2c, max44009_id);
 static struct i2c_driver max44009_driver = {
 	.driver = {
 		.name = MAX44009_DRV_NAME,
+		.of_match_table = of_match_ptr(max44009_of_match),
 	},
 	.probe_new = max44009_probe,
 	.id_table = max44009_id,
 };
 module_i2c_driver(max44009_driver);
 
-static const struct of_device_id max44009_of_match[] = {
-	{ .compatible = "maxim,max44009" },
-	{ }
-};
-MODULE_DEVICE_TABLE(of, max44009_of_match);
-
 MODULE_AUTHOR("Robert Eshleman <bobbyeshleman@xxxxxxxxx>");
 MODULE_LICENSE("GPL v2");
 MODULE_DESCRIPTION("MAX44009 ambient light sensor driver");
-- 
2.34.1