[PATCH] drm/rockchip: cdn-dp-core: Fix cdn_dp_resume unused warning

[Palmer Dabbelt]

From: Palmer Dabbelt <palmerdabbelt at google.com>

cdn_dp_resume is only used under PM_SLEEP, and now that it's static an
unused function warning is triggered undner !PM_SLEEP.  This
conditionally enables the function to avoid the warning.

Fixes: 7c49abb4c2f8 ("drm/rockchip: cdn-dp-core: Make cdn_dp_core_suspend/resume static")
Signed-off-by: Palmer Dabbelt <palmerdabbelt at google.com>
---
 drivers/gpu/drm/rockchip/cdn-dp-core.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.c b/drivers/gpu/drm/rockchip/cdn-dp-core.c
index a4a45daf93f2..063a60d213ba 100644
--- a/drivers/gpu/drm/rockchip/cdn-dp-core.c
+++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c
@@ -1121,6 +1121,7 @@ static int cdn_dp_suspend(struct device *dev)
 	return ret;
 }
 
+#ifdef CONFIG_PM_SLEEP
 static int cdn_dp_resume(struct device *dev)
 {
 	struct cdn_dp_device *dp = dev_get_drvdata(dev);
@@ -1133,6 +1134,7 @@ static int cdn_dp_resume(struct device *dev)
 
 	return 0;
 }
+#endif
 
 static int cdn_dp_probe(struct platform_device *pdev)
 {
-- 
2.20.1