kernel/git/next/linux-next.git/drivers/gpu/drm/xlnx, branch master

drm/xlnx: Convert to atomic_create_state

2026-09-15T09:46:56+00:00

The plane only initializes a pristine state in its reset hook using drm_atomic_helper_plane_reset(), which is equivalent to what atomic_create_state expects. Convert to it. The conversion was done using the following Coccinelle semantic patch: @@ identifier funcs; symbol drm_atomic_helper_plane_reset; symbol drm_atomic_helper_plane_create_state; @@ struct drm_plane_funcs funcs = { ..., - .reset = drm_atomic_helper_plane_reset, + .atomic_create_state = drm_atomic_helper_plane_create_state, ..., }; @match_struct_reset@ identifier funcs, reset_func; @@ struct drm_plane_funcs funcs = { ..., .reset = reset_func, ..., }; @reset_uses_helpers depends on match_struct_reset@ identifier match_struct_reset.reset_func; @@ void reset_func(...) { <+... ( __drm_atomic_helper_plane_reset(...); | __drm_gem_reset_shadow_plane(...); ) ...+> } @match_struct_destroy@ identifier funcs, destroy_func; @@ struct drm_plane_funcs funcs = { ..., .atomic_destroy_state = destroy_func, ..., }; @script:python renamed_func@ old_name << match_struct_reset.reset_func; new_name; @@ if old_name.endswith("_reset"): coccinelle.new_name = old_name.replace("_reset", "_create_state") else: coccinelle.new_name = old_name @update_struct depends on match_struct_reset && reset_uses_helpers@ identifier match_struct_reset.funcs, match_struct_reset.reset_func; identifier renamed_func.new_name; @@ struct drm_plane_funcs funcs = { ..., - .reset = reset_func, + .atomic_create_state = new_name, ..., }; @drop_destroy depends on update_struct && match_struct_destroy@ identifier match_struct_reset.reset_func; identifier match_struct_destroy.destroy_func; identifier container_func; identifier P; symbol drm_atomic_helper_plane_destroy_state; symbol __drm_atomic_helper_plane_destroy_state; @@ void reset_func(struct drm_plane *P) { ... ( - if (P->state) { - <+... ( - drm_atomic_helper_plane_destroy_state(P, P->state); | - __drm_atomic_helper_plane_destroy_state(P->state); | - P->funcs->atomic_destroy_state(P, P->state); | - destroy_func(P, P->state); ) - ...+> - } | - drm_WARN_ON_ONCE(P->dev, P->state); | - WARN_ON(P->state); ) ... ( - kfree(P->state); | - kfree(container_func(P->state)); | // kfree is optional ) ( - P->state = NULL; | // plane->state clearing is optional ) ... } @drop_destroy_mtk depends on update_struct@ identifier P; symbol __drm_atomic_helper_plane_destroy_state; symbol to_mtk_plane_state; @@ void mtk_plane_reset(struct drm_plane *P) { ... - if (P->state) { - __drm_atomic_helper_plane_destroy_state(P->state); - ... - } else { ... - } ... } @transform_nv50_wndw depends on update_struct@ identifier S; @@ void nv50_wndw_reset(...) { ... - if (WARN_ON(!(S = kzalloc_obj(*S)))) + S = kzalloc_obj(*S); + if (WARN_ON(!S)) return; ... } @transform_kzalloc depends on update_struct@ identifier match_struct_reset.reset_func; identifier P, S; statement ST; statement list STL; @@ void reset_func(struct drm_plane *P) { <... S = kzalloc_obj(*S); ( - if (S) - { - STL - } + if (!S) return; + + STL | - if (S) ST + if (!S) return; + + ST ) ...> } @transform_body depends on update_struct@ identifier match_struct_reset.reset_func; identifier renamed_func.new_name; identifier S, P; expression PS; @@ - void reset_func(struct drm_plane *P) + struct drm_plane_state *new_name(struct drm_plane *P) { ... S = kzalloc_obj(*S); ... ( if (!S) { ... - return; + return ERR_PTR(-ENOMEM); } | if (WARN_ON(!S)) { ... - return; + return ERR_PTR(-ENOMEM); } | if (S == NULL) { ... - return; + return ERR_PTR(-ENOMEM); } ) ... ( - __drm_atomic_helper_plane_reset(P, PS); + __drm_atomic_helper_plane_state_init(PS, P); | - __drm_gem_reset_shadow_plane(P, PS); + __drm_gem_shadow_plane_state_init(P, PS); ) ... } @update_early_return depends on update_struct@ identifier match_struct_reset.reset_func; identifier renamed_func.new_name; identifier P; expression PS; @@ struct drm_plane_state *new_name(struct drm_plane *P) { <+... - return; + return ERR_PTR(-EINVAL); ...+> } @update_return_plane depends on update_struct@ identifier match_struct_reset.reset_func; identifier renamed_func.new_name; identifier P; expression PS; @@ struct drm_plane_state *new_name(struct drm_plane *P) { ... __drm_atomic_helper_plane_state_init(PS, P); ... + + return PS; } @update_return_shadow depends on update_struct@ identifier renamed_func.new_name; identifier P; expression PS; @@ struct drm_plane_state *new_name(struct drm_plane *P) { ... __drm_gem_shadow_plane_state_init(P, PS); ... + + return &PS->base; } Reviewed-by: Thomas Zimmermann Link: https://patch.msgid.link/20260908-drm-no-more-plane-reset-v4-24-a31b3fcfc989@kernel.org Signed-off-by: Maxime Ripard

drm/xlnx: Switch to drm_atomic_helper_crtc_create_state

2026-08-31T13:11:15+00:00

The xlnx crtc implementation uses the deprecated drm_atomic_helper_crtc_reset() as its reset hook. Switch to drm_atomic_helper_crtc_create_state() instead. Reviewed-by: Thomas Zimmermann Link: https://patch.msgid.link/20260821-drm-no-more-crtc-reset-v1-40-fb793475c05a@kernel.org Signed-off-by: Maxime Ripard

drm/xlnx/zynqmp_dpsub: remove dependency on DRM simple helpers

2026-08-26T07:59:40+00:00

The simple KMS helpers are deprecated because they only add an intermediate layer between drivers and atomic modesetting. Open-code drm_simple_encoder_init() by calling drm_encoder_init() directly and providing driver-local drm_encoder_funcs. Also check the return value from drm_encoder_init() to avoid silent failures. Signed-off-by: Diogo Silva Reviewed-by: Radhey Shyam Pandey Signed-off-by: Thomas Zimmermann Reviewed-by: Thomas Zimmermann Link: https://patch.msgid.link/20260720-drm_simple_encoder_init-v2-2-5020b630668a@gmail.com

drm/xlnx: zynqmp_dp: Switch to atomic_create_state

2026-06-22T09:24:56+00:00

The drm_bridge_funcs.atomic_reset callback and its drm_atomic_helper_bridge_reset() helper are deprecated. Switch to the atomic_create_state callback and its drm_atomic_helper_bridge_create_state() counterpart. Reviewed-by: Luca Ceresoli Reviewed-by: Laurent Pinchart Reviewed-by: Thomas Zimmermann Tested-by: Luca Ceresoli # imx8mp + sn65dsi84 + bridge hotplug Link: https://patch.msgid.link/20260619-drm-no-more-bridge-reset-v3-73-ff399263111b@kernel.org Signed-off-by: Maxime Ripard

drm: zynqmp_dp: switch to of_drm_get_bridge_by_endpoint()

2026-05-19T08:57:26+00:00

This driver calls drm_of_find_panel_or_bridge() with a NULL pointer in the @panel parameter, thus using a reduced feature set of that function. Replace this call with the simpler of_drm_get_bridge_by_endpoint(). Since of_drm_get_bridge_by_endpoint() increases the refcount of the returned bridge, ensure it is put on removal. To achieve this, instead of adding an explicit drm_bridge_put(), migrate to the bridge::next_bridge pointer which is automatically put when the bridge is eventually freed. Reviewed-by: Laurent Pinchart Link: https://patch.msgid.link/20260511-drm-bridge-alloc-getput-panel_or_bridge-v6-10-f61c9e498b3f@bootlin.com Signed-off-by: Luca Ceresoli

Merge drm/drm-next into drm-misc-next

2026-05-07T14:17:01+00:00

Merge drm-next to bring the drm_atomic_state renaming patch. Signed-off-by: Maxime Ripard

drm/xlnx/zynqmp-dpsub: Fix dependencies for COMPILE_TEST

2026-05-06T08:00:03+00:00

The zynqmp-dpsub driver does not have build time dependencies on the PHY or DMA drivers. These are runtime hardware restrictions. Make the two dependencies optional if COMPILE_TEST. Signed-off-by: Chen-Yu Tsai Link: https://patch.msgid.link/20260505094716.1784225-1-wenst@chromium.org Signed-off-by: Tomi Valkeinen

drm: xlnx: zynqmp: Add support for XVUY2101010

2026-05-05T11:04:29+00:00

Add support for XVUY2101010 format. Reviewed-by: Laurent Pinchart Reviewed-by: Vishal Sagar Link: https://patch.msgid.link/20260423-xilinx-formats-v10-11-c690c2b8ea89@ideasonboard.com Signed-off-by: Tomi Valkeinen

drm: xlnx: zynqmp: Add support for T430

2026-05-05T11:04:29+00:00

Add support for T430 format. Reviewed-by: Laurent Pinchart Reviewed-by: Vishal Sagar Link: https://patch.msgid.link/20260423-xilinx-formats-v10-10-c690c2b8ea89@ideasonboard.com Signed-off-by: Tomi Valkeinen

drm: xlnx: zynqmp: Add support for Y8 and XYYY2101010

2026-05-05T11:04:29+00:00

Add support for Y8 and XYYY2101010 formats. We also need to add new csc matrices for these y-only formats. Reviewed-by: Vishal Sagar Reviewed-by: Laurent Pinchart Link: https://patch.msgid.link/20260423-xilinx-formats-v10-9-c690c2b8ea89@ideasonboard.com Signed-off-by: Tomi Valkeinen