[PATCH RESEND] 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>
---
I sent this one out in January, but it looks like it got lost in the shuffle.
I'm getting this on a RISC-V allmodconfig now.
---
 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 8ab3247dbc4a..bee0f2d2a9be 100644
--- a/drivers/gpu/drm/rockchip/cdn-dp-core.c
+++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c
@@ -1123,6 +1123,7 @@ 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);
@@ -1135,6 +1136,7 @@ static int cdn_dp_resume(struct device *dev)
 
 	return 0;
 }
+#endif
 
 static int cdn_dp_probe(struct platform_device *pdev)
 {
-- 
2.33.0.153.gba50c8fa24-goog