ASoC: sta529: 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. Before this patch: $ modinfo sound/soc/codecs/snd-soc-sta529.ko | grep alias alias: i2c:sta529 After this patch: $ modinfo sound/soc/codecs/snd-soc-sta529.ko | grep alias alias: of:N*T*Cst,sta529C* alias: of:N*T*Cst,sta529 alias: i2c:sta529 Signed-off-by: Javier Martinez Canillas <[email protected]> Signed-off-by: Mark Brown <[email protected]>
ambv · Apr 5, 2017 · 9abe464 · 9abe464
1 parent a5de5b7
commit 9abe464
Showing 1 changed file with 7 additions and 0 deletions.
diff --git a/sound/soc/codecs/sta529.c b/sound/soc/codecs/sta529.c
@@ -375,9 +375,16 @@ static const struct i2c_device_id sta529_i2c_id[] = {
 };
 MODULE_DEVICE_TABLE(i2c, sta529_i2c_id);
 
+static const struct of_device_id sta529_of_match[] = {
+	{ .compatible = "st,sta529", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, sta529_of_match);
+
 static struct i2c_driver sta529_i2c_driver = {
 	.driver = {
 		.name = "sta529",
+		.of_match_table = sta529_of_match,
 	},
 	.probe		= sta529_i2c_probe,
 	.remove		= sta529_i2c_remove,