[PATCH -next] ASoC: tegra186_asrc: mark runtime-pm functions as __maybe_unused

[YueHaibing]

sound/soc/tegra/tegra186_asrc.c:90:12: error: ‘tegra186_asrc_runtime_resume’ defined but not used [-Werror=unused-function]
 static int tegra186_asrc_runtime_resume(struct device *dev)
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~
sound/soc/tegra/tegra186_asrc.c:80:12: error: ‘tegra186_asrc_runtime_suspend’ defined but not used [-Werror=unused-function]
 static int tegra186_asrc_runtime_suspend(struct device *dev)
            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Mark these functions as __maybe_unused to avoid this kind of warning.

Fixes: a2df8c2d5b36 ("ASoC: tegra: Add Tegra186 based ASRC driver")
Signed-off-by: YueHaibing <yuehaibing at huawei.com>
---
 sound/soc/tegra/tegra186_asrc.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/sound/soc/tegra/tegra186_asrc.c b/sound/soc/tegra/tegra186_asrc.c
index 3c1e20cbb319..9f12faaa609d 100644
--- a/sound/soc/tegra/tegra186_asrc.c
+++ b/sound/soc/tegra/tegra186_asrc.c
@@ -77,7 +77,7 @@ static void tegra186_asrc_lock_stream(struct tegra186_asrc *asrc,
 		     1);
 }
 
-static int tegra186_asrc_runtime_suspend(struct device *dev)
+static int __maybe_unused tegra186_asrc_runtime_suspend(struct device *dev)
 {
 	struct tegra186_asrc *asrc = dev_get_drvdata(dev);
 
@@ -87,7 +87,7 @@ static int tegra186_asrc_runtime_suspend(struct device *dev)
 	return 0;
 }
 
-static int tegra186_asrc_runtime_resume(struct device *dev)
+static int __maybe_unused tegra186_asrc_runtime_resume(struct device *dev)
 {
 	struct tegra186_asrc *asrc = dev_get_drvdata(dev);
 	int id;
-- 
2.17.1