drm/atomic: Remove unused drm_atomic_get_existing_plane_state()

The drm_atomic_get_existing_plane_state() function is deprecated and
isn't used anymore, so let's remove it.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://lore.kernel.org/r/20250930-drm-no-more-existing-state-v5-8-eeb9e1287907@kernel.org
Signed-off-by: Maxime Ripard <mripard@kernel.org>

diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
index c8b88990506e5c9d2cbed76d04aca74efa8db346..b2cc9c4a9beb59980a8fb3629a11a45d08f2e86e 100644 (file)
--- a/include/drm/drm_atomic.h
+++ b/include/drm/drm_atomic.h
@@ -700,24 +700,6 @@ drm_atomic_get_new_crtc_state(const struct drm_atomic_state *state,
        return state->crtcs[drm_crtc_index(crtc)].new_state;
 }
 
-/**
- * drm_atomic_get_existing_plane_state - get plane state, if it exists
- * @state: global atomic state object
- * @plane: plane to grab
- *
- * This function returns the plane state for the given plane, or NULL
- * if the plane is not part of the global atomic state.
- *
- * This function is deprecated, @drm_atomic_get_old_plane_state or
- * @drm_atomic_get_new_plane_state should be used instead.
- */
-static inline struct drm_plane_state *
-drm_atomic_get_existing_plane_state(const struct drm_atomic_state *state,
-                                   struct drm_plane *plane)
-{
-       return state->planes[drm_plane_index(plane)].state;
-}
-
 /**
  * drm_atomic_get_old_plane_state - get plane state, if it exists
  * @state: global atomic state object