From: Nikola Cornij <[email protected]>

[why]
Same functions exist for all other signal types.

[how]
Add a function that checks against virtual signal type.

Signed-off-by: Nikola Cornij <[email protected]>
Reviewed-by: Leo Li <[email protected]>
---
 drivers/gpu/drm/amd/display/include/signal_types.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/amd/display/include/signal_types.h 
b/drivers/gpu/drm/amd/display/include/signal_types.h
index 03476b1..f56d289 100644
--- a/drivers/gpu/drm/amd/display/include/signal_types.h
+++ b/drivers/gpu/drm/amd/display/include/signal_types.h
@@ -102,4 +102,9 @@ static inline bool dc_is_audio_capable_signal(enum 
signal_type signal)
                dc_is_hdmi_signal(signal));
 }
 
+static inline bool dc_is_virtual_signal(enum signal_type signal)
+{
+       return (signal == SIGNAL_TYPE_VIRTUAL);
+}
+
 #endif
-- 
2.7.4

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