ASoC: samsung: smdk_wm8994: mark OF related data as maybe unused

The driver can be compile tested with !CONFIG_OF making certain data
unused:

  sound/soc/samsung/smdk_wm8994.c:139:34: warning: ‘samsung_wm8994_of_match’ defined but not used [-Wunused-const-variable=]

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
Link: https://lore.kernel.org/r/20201125164452.89239-11-krzk@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/samsung/smdk_wm8994.c b/sound/soc/samsung/smdk_wm8994.c
index 64a1a64..28d6eb1 100644 (file)
--- a/sound/soc/samsung/smdk_wm8994.c
+++ b/sound/soc/samsung/smdk_wm8994.c
@@ -136,7 +136,7 @@ static struct snd_soc_card smdk = {
        .num_links = ARRAY_SIZE(smdk_dai),
 };
 
-static const struct of_device_id samsung_wm8994_of_match[] = {
+static const struct of_device_id samsung_wm8994_of_match[] __maybe_unused = {
        { .compatible = "samsung,smdk-wm8994", .data = &smdk_board_data },
        {},
 };