Hello, The introduction of bridge_state introduced a circular dep between drm.ko and drm_kms_helper.ko which releaved a misdesign in how the whole thing was implemented. Let's revert all patches for now. Regards, Boris Boris Brezillon (5): Revert "drm/bridge: Fix a NULL pointer dereference in drm_atomic_bridge_chain_check()" Revert "drm/bridge: Add the necessary bits to support bus format negotiation" Revert "drm/bridge: Add an ->atomic_check() hook" Revert "drm/bridge: Patch atomic hooks to take a drm_bridge_state" Revert "drm/bridge: Add a drm_bridge_state object" .../drm/bridge/analogix/analogix_dp_core.c | 41 +- drivers/gpu/drm/drm_atomic.c | 39 -- drivers/gpu/drm/drm_atomic_helper.c | 32 +- drivers/gpu/drm/drm_bridge.c | 531 +----------------- drivers/gpu/drm/rcar-du/rcar_lvds.c | 8 +- include/drm/drm_atomic.h | 3 - include/drm/drm_bridge.h | 275 +-------- 7 files changed, 49 insertions(+), 880 deletions(-) -- 2.23.0 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel