Revert "drm/bridge: Add a drm_bridge_state object"

This reverts commit 6ed7e9625fa6 ("drm/bridge: Add a drm_bridge_state
object") which introduced a circular dependency between drm.ko and
drm_kms_helper.ko. Looks like the helper/core split is not appropriate
and fixing that is not simple.

Signed-off-by: Boris Brezillon <boris.brezillon@collabora.com>
Acked-by: Neil Armstrong <narmstrong@baylibre.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20200107185807.606999-6-boris.brezillon@collabora.com

2 files changed, 0 insertions, 117 deletions

diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
index ccce65e14917..951dfb15c27b 100644
--- a/include/drm/drm_atomic.h
+++ b/include/drm/drm_atomic.h
@@ -670,9 +670,6 @@ __drm_atomic_get_current_plane_state(struct drm_atomic_state *state,
 }
 
 int __must_check
-drm_atomic_add_encoder_bridges(struct drm_atomic_state *state,
-			       struct drm_encoder *encoder);
-int __must_check
 drm_atomic_add_affected_connectors(struct drm_atomic_state *state,
 				   struct drm_crtc *crtc);
 int __must_check
diff --git a/include/drm/drm_bridge.h b/include/drm/drm_bridge.h
index fc7c71f4de55..694e153a7531 100644
--- a/include/drm/drm_bridge.h
+++ b/include/drm/drm_bridge.h
@@ -25,8 +25,6 @@
 
 #include <linux/list.h>
 #include <linux/ctype.h>
-
-#include <drm/drm_atomic.h>
 #include <drm/drm_encoder.h>
 #include <drm/drm_mode_object.h>
 #include <drm/drm_modes.h>
@@ -36,23 +34,6 @@ struct drm_bridge_timings;
 struct drm_panel;
 
 /**
- * struct drm_bridge_state - Atomic bridge state object
- * @base: inherit from &drm_private_state
- * @bridge: the bridge this state refers to
- */
-struct drm_bridge_state {
-	struct drm_private_state base;
-
-	struct drm_bridge *bridge;
-};
-
-static inline struct drm_bridge_state *
-drm_priv_to_bridge_state(struct drm_private_state *priv)
-{
-	return container_of(priv, struct drm_bridge_state, base);
-}
-
-/**
  * struct drm_bridge_funcs - drm_bridge control functions
  */
 struct drm_bridge_funcs {
@@ -357,49 +338,6 @@ struct drm_bridge_funcs {
 	 */
 	void (*atomic_post_disable)(struct drm_bridge *bridge,
 				    struct drm_atomic_state *old_state);
-
-	/**
-	 * @atomic_duplicate_state:
-	 *
-	 * Duplicate the current bridge state object (which is guaranteed to be
-	 * non-NULL).
-	 *
-	 * The atomic_duplicate_state() is optional. When not implemented the
-	 * core allocates a drm_bridge_state object and calls
-	 * &__drm_atomic_helper_bridge_duplicate_state() to initialize it.
-	 *
-	 * RETURNS:
-	 * A valid drm_bridge_state object or NULL if the allocation fails.
-	 */
-	struct drm_bridge_state *(*atomic_duplicate_state)(struct drm_bridge *bridge);
-
-	/**
-	 * @atomic_destroy_state:
-	 *
-	 * Destroy a bridge state object previously allocated by
-	 * &drm_bridge_funcs.atomic_duplicate_state().
-	 *
-	 * The atomic_destroy_state hook is optional. When not implemented the
-	 * core calls kfree() on the state.
-	 */
-	void (*atomic_destroy_state)(struct drm_bridge *bridge,
-				     struct drm_bridge_state *state);
-
-	/**
-	 * @atomic_reset:
-	 *
-	 * Reset the bridge to a predefined state (or retrieve its current
-	 * state) and return a &drm_bridge_state object matching this state.
-	 * This function is called at attach time.
-	 *
-	 * The atomic_reset hook is optional. When not implemented the core
-	 * allocates a new state and calls &__drm_atomic_helper_bridge_reset().
-	 *
-	 * RETURNS:
-	 * A valid drm_bridge_state object in case of success, an ERR_PTR()
-	 * giving the reason of the failure otherwise.
-	 */
-	struct drm_bridge_state *(*atomic_reset)(struct drm_bridge *bridge);
 };
 
 /**
@@ -442,8 +380,6 @@ struct drm_bridge_timings {
  * struct drm_bridge - central DRM bridge control structure
  */
 struct drm_bridge {
-	/** @base: inherit from &drm_private_object */
-	struct drm_private_obj base;
 	/** @dev: DRM device this bridge belongs to */
 	struct drm_device *dev;
 	/** @encoder: encoder to which this bridge is connected */
@@ -468,12 +404,6 @@ struct drm_bridge {
 	void *driver_private;
 };
 
-static inline struct drm_bridge *
-drm_priv_to_bridge(struct drm_private_obj *priv)
-{
-	return container_of(priv, struct drm_bridge, base);
-}
-
 void drm_bridge_add(struct drm_bridge *bridge);
 void drm_bridge_remove(struct drm_bridge *bridge);
 struct drm_bridge *of_drm_find_bridge(struct device_node *np);
@@ -561,50 +491,6 @@ void drm_atomic_bridge_chain_pre_enable(struct drm_bridge *bridge,
 void drm_atomic_bridge_chain_enable(struct drm_bridge *bridge,
 				    struct drm_atomic_state *state);
 
-void __drm_atomic_helper_bridge_reset(struct drm_bridge *bridge,
-				      struct drm_bridge_state *state);
-void __drm_atomic_helper_bridge_duplicate_state(struct drm_bridge *bridge,
-						struct drm_bridge_state *new);
-
-static inline struct drm_bridge_state *
-drm_atomic_get_bridge_state(struct drm_atomic_state *state,
-			    struct drm_bridge *bridge)
-{
-	struct drm_private_state *obj_state;
-
-	obj_state = drm_atomic_get_private_obj_state(state, &bridge->base);
-	if (IS_ERR(obj_state))
-		return ERR_CAST(obj_state);
-
-	return drm_priv_to_bridge_state(obj_state);
-}
-
-static inline struct drm_bridge_state *
-drm_atomic_get_old_bridge_state(struct drm_atomic_state *state,
-				struct drm_bridge *bridge)
-{
-	struct drm_private_state *obj_state;
-
-	obj_state = drm_atomic_get_old_private_obj_state(state, &bridge->base);
-	if (!obj_state)
-		return NULL;
-
-	return drm_priv_to_bridge_state(obj_state);
-}
-
-static inline struct drm_bridge_state *
-drm_atomic_get_new_bridge_state(struct drm_atomic_state *state,
-				struct drm_bridge *bridge)
-{
-	struct drm_private_state *obj_state;
-
-	obj_state = drm_atomic_get_new_private_obj_state(state, &bridge->base);
-	if (!obj_state)
-		return NULL;
-
-	return drm_priv_to_bridge_state(obj_state);
-}
-
 #ifdef CONFIG_DRM_PANEL_BRIDGE
 struct drm_bridge *drm_panel_bridge_add(struct drm_panel *panel);
 struct drm_bridge *drm_panel_bridge_add_typed(struct drm_panel *panel,