[PATCH v2 01/22] drm: add clone mode check for CRTC

[Jessica Zhang]

Add helper to check if the given CRTC state is in clone mode

Signed-off-by: Jessica Zhang <quic_jesszhan@xxxxxxxxxxx>
---
 include/drm/drm_crtc.h | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/include/drm/drm_crtc.h b/include/drm/drm_crtc.h
index 8b48a1974da3..ecb93e2c4afc 100644
--- a/include/drm/drm_crtc.h
+++ b/include/drm/drm_crtc.h
@@ -1323,5 +1323,12 @@ static inline struct drm_crtc *drm_crtc_find(struct drm_device *dev,
 
 int drm_crtc_create_scaling_filter_property(struct drm_crtc *crtc,
 					    unsigned int supported_filters);
+static inline bool drm_crtc_in_clone_mode(struct drm_crtc_state *crtc_state)
+{
+	if (!crtc_state)
+		return false;
+
+	return hweight32(crtc_state->encoder_mask) > 1;
+}
 
 #endif /* __DRM_CRTC_H__ */

-- 
2.34.1