[PATCH 1/5] ASoC: tegra: tegra186_dspk: Fix compile warning with CONFIG_PM=n

[Takashi Iwai <tiwai@xxxxxxx>]

Fix trivial compile warnings wrt unused functions by adding
__maybe_unused prefix:
  sound/soc/tegra/tegra186_dspk.c:74:12: warning: 'tegra186_dspk_runtime_suspend' defined but not used [-Wunused-function]
  sound/soc/tegra/tegra186_dspk.c:86:12: warning: 'tegra186_dspk_runtime_resume' defined but not used [-Wunused-function]

Fixes: 327ef6470266 ("ASoC: tegra: Add Tegra186 based DSPK driver")
Signed-off-by: Takashi Iwai <tiwai@xxxxxxx>
---
 sound/soc/tegra/tegra186_dspk.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/tegra/tegra186_dspk.c b/sound/soc/tegra/tegra186_dspk.c
index fe7117171a0e..0cbe31e2c7e9 100644
--- a/sound/soc/tegra/tegra186_dspk.c
+++ b/sound/soc/tegra/tegra186_dspk.c
@@ -71,7 +71,7 @@ static int tegra186_dspk_put_control(struct snd_kcontrol *kcontrol,
 	return 0;
 }
 
-static int tegra186_dspk_runtime_suspend(struct device *dev)
+static int __maybe_unused tegra186_dspk_runtime_suspend(struct device *dev)
 {
 	struct tegra186_dspk *dspk = dev_get_drvdata(dev);
 
@@ -83,7 +83,7 @@ static int tegra186_dspk_runtime_suspend(struct device *dev)
 	return 0;
 }
 
-static int tegra186_dspk_runtime_resume(struct device *dev)
+static int __maybe_unused tegra186_dspk_runtime_resume(struct device *dev)
 {
 	struct tegra186_dspk *dspk = dev_get_drvdata(dev);
 	int err;
-- 
2.16.4