drm: bridge: Mark deprecated operations in drm_bridge_funcs

drm_bridge_funcs includes several duplicated operations as atomic
variants have been added over time.
New bridge drivers shall use the atomic variants - mark the deprecated
operations to try to avoid usage in new bridge drivers.

v2:
  - Drop out-dated comment about state in mode_set (Laurent)
  - Added missing "the" in a description
Signed-off-by: Sam Ravnborg <sam@ravnborg.org>
Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Andrzej Hajda <a.hajda@samsung.com>
Cc: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Cc: Maxime Ripard <mripard@kernel.org>
Cc: Thomas Zimmermann <tzimmermann@suse.de>
Cc: David Airlie <airlied@linux.ie>
Cc: Daniel Vetter <daniel@ffwll.ch>
Acked-by: Maxime Ripard <maxime@cerno.tech>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210710084240.281063-1-sam@ravnborg.org

include/drm/drm_bridge.h

@@ -171,6 +171,11 @@ struct drm_bridge_funcs {
 	 * signals) feeding it is still running when this callback is called.
 	 *
 	 * The @disable callback is optional.
+	 *
+	 * NOTE:
+	 *
+	 * This is deprecated, do not use!
+	 * New drivers shall use &drm_bridge_funcs.atomic_disable.
 	 */
 	void (*disable)(struct drm_bridge *bridge);
 
@@ -190,6 +195,11 @@ struct drm_bridge_funcs {
 	 * called.
 	 *
 	 * The @post_disable callback is optional.
+	 *
+	 * NOTE:
+	 *
+	 * This is deprecated, do not use!
+	 * New drivers shall use &drm_bridge_funcs.atomic_post_disable.
 	 */
 	void (*post_disable)(struct drm_bridge *bridge);
 
@@ -215,9 +225,9 @@ struct drm_bridge_funcs {
 	 *
 	 * NOTE:
 	 *
-	 * If a need arises to store and access modes adjusted for other
-	 * locations than the connection between the CRTC and the first bridge,
-	 * the DRM framework will have to be extended with DRM bridge states.
+	 * This is deprecated, do not use!
+	 * New drivers shall set their mode in the
+	 * &drm_bridge_funcs.atomic_enable operation.
 	 */
 	void (*mode_set)(struct drm_bridge *bridge,
 			 const struct drm_display_mode *mode,
@@ -239,6 +249,11 @@ struct drm_bridge_funcs {
 	 * there is one) when this callback is called.
 	 *
 	 * The @pre_enable callback is optional.
+	 *
+	 * NOTE:
+	 *
+	 * This is deprecated, do not use!
+	 * New drivers shall use &drm_bridge_funcs.atomic_pre_enable.
 	 */
 	void (*pre_enable)(struct drm_bridge *bridge);
 
@@ -259,6 +274,11 @@ struct drm_bridge_funcs {
 	 * chain if there is one.
 	 *
 	 * The @enable callback is optional.
+	 *
+	 * NOTE:
+	 *
+	 * This is deprecated, do not use!
+	 * New drivers shall use &drm_bridge_funcs.atomic_enable.
 	 */
 	void (*enable)(struct drm_bridge *bridge);