},
 };
 
-static struct snd_soc_codec_driver soc_codec_dev_gtm601 = {
+static const struct snd_soc_codec_driver soc_codec_dev_gtm601 = {
        .dapm_widgets = gtm601_dapm_widgets,
        .num_dapm_widgets = ARRAY_SIZE(gtm601_dapm_widgets),
        .dapm_routes = gtm601_dapm_routes,
 
 static struct platform_driver gtm601_codec_driver = {
        .driver = {
-                       .name = "gtm601",
-                       .of_match_table = of_match_ptr(gtm601_codec_of_match),
+               .name = "gtm601",
+               .of_match_table = of_match_ptr(gtm601_codec_of_match),
        },
-
        .probe = gtm601_platform_probe,
        .remove = gtm601_platform_remove,
 };