This patch Adds a function to extract intel_crtc_state from the
atomic_state, if not available it returns NULL.
Signed-off-by: Mahesh Kumar <mahesh1.kumar@xxxxxxxxx>
Reviewed-by: Paulo Zanoni <paulo.r.zanoni@xxxxxxxxx>
---
drivers/gpu/drm/i915/intel_drv.h | 14 ++++++++++++++
1 file changed, 14 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_drv.h b/drivers/gpu/drm/i915/intel_drv.h
index ad542a2..db75773 100644
--- a/drivers/gpu/drm/i915/intel_drv.h
+++ b/drivers/gpu/drm/i915/intel_drv.h
@@ -1794,6 +1794,20 @@ 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)
--
2.10.1
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