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-rw-r--r--drivers/gpu/drm/i915/intel_drv.h14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index fd77a3ba857b..8f4ddca0f521 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1809,6 +1809,20 @@ intel_atomic_get_crtc_state(struct drm_atomic_state *state,
return to_intel_crtc_state(crtc_state);
}
+static inline struct intel_crtc_state *
+intel_atomic_get_existing_crtc_state(struct drm_atomic_state *state,
+ struct intel_crtc *crtc)
+{
+ struct drm_crtc_state *crtc_state;
+
+ crtc_state = drm_atomic_get_existing_crtc_state(state, &crtc->base);
+
+ if (crtc_state)
+ return to_intel_crtc_state(crtc_state);
+ else
+ return NULL;
+}
+
static inline struct intel_plane_state *
intel_atomic_get_existing_plane_state(struct drm_atomic_state *state,
struct intel_plane *plane)
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