Fix build warning when CONFIG_PM_SLEEP is not enabled.

../drivers/gpu/drm/rockchip/cdn-dp-core.c:1124:12: warning: ‘cdn_dp_resume’ defined but not used [-Wunused-function] static int cdn_dp_resume(struct device *dev)

Fixes: 7c49abb4c2f8 ("drm/rockchip: cdn-dp-core: Make cdn_dp_core_suspend/resume static") Signed-off-by: Randy Dunlap rdunlap@infradead.org Cc: Sandy Huang hjc@rock-chips.com Cc: Heiko Stübner heiko@sntech.de Cc: dri-devel@lists.freedesktop.org Cc: David Airlie airlied@linux.ie Cc: Daniel Vetter daniel@ffwll.ch --- v2: use preferred __maybe_unused instead of ifdeffery: https://lore.kernel.org/patchwork/patch/732981/

drivers/gpu/drm/rockchip/cdn-dp-core.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

--- linux-next-20201214.orig/drivers/gpu/drm/rockchip/cdn-dp-core.c +++ linux-next-20201214/drivers/gpu/drm/rockchip/cdn-dp-core.c @@ -1121,7 +1121,7 @@ static int cdn_dp_suspend(struct device return ret; }

-static int cdn_dp_resume(struct device *dev) +static __maybe_unused int cdn_dp_resume(struct device *dev) { struct cdn_dp_device *dp = dev_get_drvdata(dev);