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path: root/drivers/gpu/drm/drm_atomic.c
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Diffstat (limited to 'drivers/gpu/drm/drm_atomic.c')
-rw-r--r--drivers/gpu/drm/drm_atomic.c45
1 files changed, 44 insertions, 1 deletions
diff --git a/drivers/gpu/drm/drm_atomic.c b/drivers/gpu/drm/drm_atomic.c
index 5eb40130fafb..f4924cb7f495 100644
--- a/drivers/gpu/drm/drm_atomic.c
+++ b/drivers/gpu/drm/drm_atomic.c
@@ -798,6 +798,50 @@ drm_atomic_get_private_obj_state(struct drm_atomic_state *state,
EXPORT_SYMBOL(drm_atomic_get_private_obj_state);
/**
+ * drm_atomic_get_old_private_obj_state
+ * @state: global atomic state object
+ * @obj: private_obj to grab
+ *
+ * This function returns the old private object state for the given private_obj,
+ * or NULL if the private_obj is not part of the global atomic state.
+ */
+struct drm_private_state *
+drm_atomic_get_old_private_obj_state(struct drm_atomic_state *state,
+ struct drm_private_obj *obj)
+{
+ int i;
+
+ for (i = 0; i < state->num_private_objs; i++)
+ if (obj == state->private_objs[i].ptr)
+ return state->private_objs[i].old_state;
+
+ return NULL;
+}
+EXPORT_SYMBOL(drm_atomic_get_old_private_obj_state);
+
+/**
+ * drm_atomic_get_new_private_obj_state
+ * @state: global atomic state object
+ * @obj: private_obj to grab
+ *
+ * This function returns the new private object state for the given private_obj,
+ * or NULL if the private_obj is not part of the global atomic state.
+ */
+struct drm_private_state *
+drm_atomic_get_new_private_obj_state(struct drm_atomic_state *state,
+ struct drm_private_obj *obj)
+{
+ int i;
+
+ for (i = 0; i < state->num_private_objs; i++)
+ if (obj == state->private_objs[i].ptr)
+ return state->private_objs[i].new_state;
+
+ return NULL;
+}
+EXPORT_SYMBOL(drm_atomic_get_new_private_obj_state);
+
+/**
* drm_atomic_get_connector_state - get connector state
* @state: global atomic state object
* @connector: connector to get state object for
@@ -1236,4 +1280,3 @@ int drm_atomic_debugfs_init(struct drm_minor *minor)
minor->debugfs_root, minor);
}
#endif
-