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drm/tegra: Mark Tegra186 display hub PM functions __maybe_unused 

The newly introduced driver has optional suspend/resume functions,
causing a warning when CONFIG_PM is disabled:

drivers/gpu/drm/tegra/hub.c:749:12: error: 'tegra_display_hub_resume' defined but not used [-Werror=unused-function]
drivers/gpu/drm/tegra/hub.c:733:12: error: 'tegra_display_hub_suspend' defined but not used [-Werror=unused-function]

This marks them __maybe_unused to shut up the warnings.

Fixes: c4755fb906 ("drm/tegra: Add Tegra186 display hub support")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
Arnd Bergmann 2017-12-15 13:51:52 +01:00 committed by Thierry Reding
parent bc8828bd08
commit 013e2b722a
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/tegra/hub.c
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@ -728,7 +728,7 @@ static int tegra_display_hub_remove(struct platform_device *pdev)
return err; return err;
} }
static int tegra_display_hub_suspend(struct device *dev) static int __maybe_unused tegra_display_hub_suspend(struct device *dev)
{ {
struct tegra_display_hub *hub = dev_get_drvdata(dev); struct tegra_display_hub *hub = dev_get_drvdata(dev);
int err; int err;
@ -744,7 +744,7 @@ static int tegra_display_hub_suspend(struct device *dev)
return 0; return 0;
} }
static int tegra_display_hub_resume(struct device *dev) static int __maybe_unused tegra_display_hub_resume(struct device *dev)
{ {
struct tegra_display_hub *hub = dev_get_drvdata(dev); struct tegra_display_hub *hub = dev_get_drvdata(dev);
int err; int err;