[PATCH v2] 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 marks the
function as possibly unused, to avoid triggering compiler warnings.

Fixes: 7c49abb4c2f8 ("drm/rockchip: cdn-dp-core: Make cdn_dp_core_suspend/resume static")
Reviewed-by: Geert Uytterhoeven <geert+renesas at glider.be>
Signed-off-by: Palmer Dabbelt <palmerdabbelt at google.com>
---
This is breaking my builds and looks like it'll land after -rc1, so I've put it
on a shared tag for-rockchip-cdn_dp_resume-v2 which will let me pull it in to
my fixes.  LMK if you guys want me to send this up on my own, but I'm assuming
that the drm/rockchip folks will handle it.
---
 drivers/gpu/drm/rockchip/cdn-dp-core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/rockchip/cdn-dp-core.c b/drivers/gpu/drm/rockchip/cdn-dp-core.c
index 8ab3247dbc4a..13c6b857158f 100644
--- a/drivers/gpu/drm/rockchip/cdn-dp-core.c
+++ b/drivers/gpu/drm/rockchip/cdn-dp-core.c
@@ -1123,7 +1123,7 @@ static int cdn_dp_suspend(struct device *dev)
 	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);
 
-- 
2.33.0.309.g3052b89438-goog