phy: tegra: xusb: mark PM functions as __maybe_unused

From: Arnd Bergmann <[email protected]>

When these are not referenced, gcc prints a harmless warning:

drivers/phy/tegra/xusb.c:1286:12: error: 'tegra_xusb_padctl_resume_noirq' defined but not used [-Werror=unused-function]
1286 | static int tegra_xusb_padctl_resume_noirq(struct device *dev)

      |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/phy/tegra/xusb.c:1276:12: error: 'tegra_xusb_padctl_suspend_noirq' defined but not used [-Werror=unused-function]
 1276 | static int tegra_xusb_padctl_suspend_noirq(struct device *dev)
      |            ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

---
 drivers/phy/tegra/xusb.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

index 0aadac678191..963de5913e50 100644
@@ -1273,7 +1273,7 @@ static int tegra_xusb_padctl_remove(struct platform_device *pdev)
 	return err;
 }
 
-static int tegra_xusb_padctl_suspend_noirq(struct device *dev)
+static __maybe_unused int tegra_xusb_padctl_suspend_noirq(struct device *dev)
 {
 	struct tegra_xusb_padctl *padctl = dev_get_drvdata(dev);
 

@@ -1283,7 +1283,7 @@ static int tegra_xusb_padctl_suspend_noirq(struct device *dev)
 	return 0;
 }
 
-static int tegra_xusb_padctl_resume_noirq(struct device *dev)
+static __maybe_unused int tegra_xusb_padctl_resume_noirq(struct device *dev)
 {
 	struct tegra_xusb_padctl *padctl = dev_get_drvdata(dev);
 

2.29.2

Applied, thanks

~Vinod