kernel/git/stable/linux.git/drivers/gpu/drm/sti, branch master

drm/panel: of_drm_find_panel() return a counted reference

2026-07-20T13:07:22+00:00

Callers of of_drm_find_panel() and drm_of_find_panel_or_bridge() receive a pointer with no reference held, creating a window where the panel device can be unregistered and freed between the lookup and first use (e.g., drm_panel_prepare()). Fix the lookup function by acquiring a reference with drm_panel_get() before returning, under panel_lock. Callers are now responsible for calling drm_panel_put() when they no longer need the pointer. For bridge drivers that immediately wrap the panel in a panel_bridge (which acquires its own reference), release the lookup reference right after the bridge creation call. For analogix-anx6345, which stores the panel for direct use, release the reference in the i2c remove path. For platform drivers using analogix_dp_core with a component lifecycle (exynos_dp, rockchip analogix_dp), release the lookup reference in the platform remove() function. The panel_bridge created during bind() holds a separate reference that devm cleanup releases after remove() returns. Also fix devm_drm_of_get_bridge() and drmm_of_get_bridge() in bridge/panel.c itself, update a second batch of drivers calling of_drm_find_panel() or drm_of_find_panel_or_bridge() to release the lookup reference after wrapping the panel in a bridge, and handle the cases where a panel is found but cannot be used, dropping the reference immediately in those paths. Assisted-by: Claude:claude-opus-4-6 Acked-by: Maxime Ripard Signed-off-by: Albert Esteve Signed-off-by: Neil Armstrong Link: https://patch.msgid.link/20260717-drm_refcount_wiring-v3-3-023900c32e01@redhat.com

drm/sti: hdmi: Switch to atomic bridge callbacks

2026-07-15T07:46:15+00:00

The hdmi bridge uses the legacy non-atomic pre_enable, enable, disable and post_disable bridge callbacks. In order to remove the legacy bridge callback support from the DRM bridge core, switch to their atomic counterparts and add the bridge atomic state handlers. Generated by the following Coccinelle script: @ is_bridge @ identifier funcs; @@ struct drm_bridge_funcs funcs = { ..., }; @ has_create_state depends on is_bridge @ identifier funcs, f; @@ struct drm_bridge_funcs funcs = { ..., .atomic_create_state = f, ..., }; @ update_struct depends on (is_bridge && !has_create_state) @ identifier is_bridge.funcs; identifier f; @@ struct drm_bridge_funcs funcs = { + .atomic_create_state = drm_atomic_helper_bridge_create_state, + .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state, + .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state, ..., }; @ update_pre_enable_struct depends on (is_bridge && !has_create_state) @ identifier is_bridge.funcs; identifier f; @@ struct drm_bridge_funcs funcs = { ..., - .pre_enable = f, + .atomic_pre_enable = f, ..., }; @ update_pre_enable_impl depends on update_pre_enable_struct @ identifier update_pre_enable_struct.f; identifier b; @@ -void f(struct drm_bridge *b) +void f(struct drm_bridge *b, struct drm_atomic_commit *commit) { ... } @ update_enable_struct depends on (is_bridge && !has_create_state) @ identifier is_bridge.funcs; identifier f; @@ struct drm_bridge_funcs funcs = { ..., - .enable = f, + .atomic_enable = f, ..., }; @ update_enable_impl depends on update_enable_struct @ identifier update_enable_struct.f; identifier b; @@ -void f(struct drm_bridge *b) +void f(struct drm_bridge *b, struct drm_atomic_commit *commit) { ... } @ update_disable_struct depends on (is_bridge && !has_create_state) @ identifier is_bridge.funcs; identifier f; @@ struct drm_bridge_funcs funcs = { ..., - .disable = f, + .atomic_disable = f, ..., }; @ update_disable_impl depends on update_disable_struct @ identifier update_disable_struct.f; identifier b; @@ -void f(struct drm_bridge *b) +void f(struct drm_bridge *b, struct drm_atomic_commit *commit) { ... } @ update_post_disable_struct depends on (is_bridge && !has_create_state) @ identifier is_bridge.funcs; identifier f; @@ struct drm_bridge_funcs funcs = { ..., - .post_disable = f, + .atomic_post_disable = f, ..., }; @ update_post_disable_impl depends on update_post_disable_struct @ identifier update_post_disable_struct.f; identifier b; @@ -void f(struct drm_bridge *b) +void f(struct drm_bridge *b, struct drm_atomic_commit *commit) { ... } Reviewed-by: Luca Ceresoli Link: https://patch.msgid.link/20260707-drm-all-atomic-bridges-v2-36-21d03cbca446@kernel.org Signed-off-by: Maxime Ripard

drm/sti: hda: Switch to atomic bridge callbacks

2026-07-15T07:46:15+00:00

The hda bridge uses the legacy non-atomic pre_enable, enable, disable and post_disable bridge callbacks. In order to remove the legacy bridge callback support from the DRM bridge core, switch to their atomic counterparts and add the bridge atomic state handlers. Generated by the following Coccinelle script: @ is_bridge @ identifier funcs; @@ struct drm_bridge_funcs funcs = { ..., }; @ has_create_state depends on is_bridge @ identifier funcs, f; @@ struct drm_bridge_funcs funcs = { ..., .atomic_create_state = f, ..., }; @ update_struct depends on (is_bridge && !has_create_state) @ identifier is_bridge.funcs; identifier f; @@ struct drm_bridge_funcs funcs = { + .atomic_create_state = drm_atomic_helper_bridge_create_state, + .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state, + .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state, ..., }; @ update_pre_enable_struct depends on (is_bridge && !has_create_state) @ identifier is_bridge.funcs; identifier f; @@ struct drm_bridge_funcs funcs = { ..., - .pre_enable = f, + .atomic_pre_enable = f, ..., }; @ update_pre_enable_impl depends on update_pre_enable_struct @ identifier update_pre_enable_struct.f; identifier b; @@ -void f(struct drm_bridge *b) +void f(struct drm_bridge *b, struct drm_atomic_commit *commit) { ... } @ update_enable_struct depends on (is_bridge && !has_create_state) @ identifier is_bridge.funcs; identifier f; @@ struct drm_bridge_funcs funcs = { ..., - .enable = f, + .atomic_enable = f, ..., }; @ update_enable_impl depends on update_enable_struct @ identifier update_enable_struct.f; identifier b; @@ -void f(struct drm_bridge *b) +void f(struct drm_bridge *b, struct drm_atomic_commit *commit) { ... } @ update_disable_struct depends on (is_bridge && !has_create_state) @ identifier is_bridge.funcs; identifier f; @@ struct drm_bridge_funcs funcs = { ..., - .disable = f, + .atomic_disable = f, ..., }; @ update_disable_impl depends on update_disable_struct @ identifier update_disable_struct.f; identifier b; @@ -void f(struct drm_bridge *b) +void f(struct drm_bridge *b, struct drm_atomic_commit *commit) { ... } @ update_post_disable_struct depends on (is_bridge && !has_create_state) @ identifier is_bridge.funcs; identifier f; @@ struct drm_bridge_funcs funcs = { ..., - .post_disable = f, + .atomic_post_disable = f, ..., }; @ update_post_disable_impl depends on update_post_disable_struct @ identifier update_post_disable_struct.f; identifier b; @@ -void f(struct drm_bridge *b) +void f(struct drm_bridge *b, struct drm_atomic_commit *commit) { ... } Reviewed-by: Luca Ceresoli Link: https://patch.msgid.link/20260707-drm-all-atomic-bridges-v2-35-21d03cbca446@kernel.org Signed-off-by: Maxime Ripard

drm/sti: dvo: Switch to atomic bridge callbacks

2026-07-15T07:46:14+00:00

The dvo bridge uses the legacy non-atomic pre_enable, enable, disable and post_disable bridge callbacks. In order to remove the legacy bridge callback support from the DRM bridge core, switch to their atomic counterparts and add the bridge atomic state handlers. Generated by the following Coccinelle script: @ is_bridge @ identifier funcs; @@ struct drm_bridge_funcs funcs = { ..., }; @ has_create_state depends on is_bridge @ identifier funcs, f; @@ struct drm_bridge_funcs funcs = { ..., .atomic_create_state = f, ..., }; @ update_struct depends on (is_bridge && !has_create_state) @ identifier is_bridge.funcs; identifier f; @@ struct drm_bridge_funcs funcs = { + .atomic_create_state = drm_atomic_helper_bridge_create_state, + .atomic_destroy_state = drm_atomic_helper_bridge_destroy_state, + .atomic_duplicate_state = drm_atomic_helper_bridge_duplicate_state, ..., }; @ update_pre_enable_struct depends on (is_bridge && !has_create_state) @ identifier is_bridge.funcs; identifier f; @@ struct drm_bridge_funcs funcs = { ..., - .pre_enable = f, + .atomic_pre_enable = f, ..., }; @ update_pre_enable_impl depends on update_pre_enable_struct @ identifier update_pre_enable_struct.f; identifier b; @@ -void f(struct drm_bridge *b) +void f(struct drm_bridge *b, struct drm_atomic_commit *commit) { ... } @ update_enable_struct depends on (is_bridge && !has_create_state) @ identifier is_bridge.funcs; identifier f; @@ struct drm_bridge_funcs funcs = { ..., - .enable = f, + .atomic_enable = f, ..., }; @ update_enable_impl depends on update_enable_struct @ identifier update_enable_struct.f; identifier b; @@ -void f(struct drm_bridge *b) +void f(struct drm_bridge *b, struct drm_atomic_commit *commit) { ... } @ update_disable_struct depends on (is_bridge && !has_create_state) @ identifier is_bridge.funcs; identifier f; @@ struct drm_bridge_funcs funcs = { ..., - .disable = f, + .atomic_disable = f, ..., }; @ update_disable_impl depends on update_disable_struct @ identifier update_disable_struct.f; identifier b; @@ -void f(struct drm_bridge *b) +void f(struct drm_bridge *b, struct drm_atomic_commit *commit) { ... } @ update_post_disable_struct depends on (is_bridge && !has_create_state) @ identifier is_bridge.funcs; identifier f; @@ struct drm_bridge_funcs funcs = { ..., - .post_disable = f, + .atomic_post_disable = f, ..., }; @ update_post_disable_impl depends on update_post_disable_struct @ identifier update_post_disable_struct.f; identifier b; @@ -void f(struct drm_bridge *b) +void f(struct drm_bridge *b, struct drm_atomic_commit *commit) { ... } Reviewed-by: Luca Ceresoli Link: https://patch.msgid.link/20260707-drm-all-atomic-bridges-v2-34-21d03cbca446@kernel.org Signed-off-by: Maxime Ripard

Replace by more specific (c files)

2026-07-03T05:38:17+00:00

Replace the #include of by the more specific where applicable. For most cases the include can be dropped completely, only a few drivers need one or two headers added. Acked-by: Danilo Krummrich Acked-by: Takashi Sakamoto Acked-by: Bjorn Helgaas Link: https://patch.msgid.link/1a3f2007c5c5dcf555c09a4035ce3ae8ef1b6c49.1782808461.git.u.kleine-koenig@baylibre.com Signed-off-by: Uwe Kleine-König (The Capable Hub)

Merge v7.1-rc5 into drm-next

2026-05-28T07:58:36+00:00

Boris Brezillion needs the gem lru fixes 379e8f1ca5e9 ("drm/gem: Make the GEM LRU lock part of drm_device") backmerged for drm-misc-next. That also means we need to sort out the rename conflict in panthor with the fixup patch from Boris from drm-tip. Signed-off-by: Simona Vetter

drm/sti: hdmi: Use the common TMDS char rate constants

2026-05-21T09:45:52+00:00

Replace the 340000000 and 165000000 magic numbers with the shared constants defined in the header. Suggested-by: Maxime Ripard Reviewed-by: Maxime Ripard Link: https://patch.msgid.link/20260520144424.1633354-6-javierm@redhat.com Signed-off-by: Javier Martinez Canillas

drm/sti: remove bridge when sti_hda component_add fails

2026-05-04T20:52:39+00:00

Use devm_drm_bridge_add() so the bridge is released if probe fails after registration, and drop the manual drm_bridge_remove() in remove(). Check the return value of devm_drm_bridge_add(). Signed-off-by: Osama Abdelkader Fixes: d28726efc637 ("drm/sti: hda: add bridge before attaching") Cc: stable@vger.kernel.org Reviewed-by: Luca Ceresoli Acked-by: Raphaël Gallais-Pou Link: https://patch.msgid.link/20260423200622.325076-1-osama.abdelkader@gmail.com Signed-off-by: Raphael Gallais-Pou

drm: Rename struct drm_atomic_state to drm_atomic_commit

2026-05-04T04:05:04+00:00

The KMS framework uses two slightly different definitions for the state concept. For a given object (plane, CRTC, encoder, etc., so drm_$OBJECT_state), the state is the entire state of that object. However, at the device level, drm_atomic_state refers to a state update for a limited number of objects. Thus, drm_atomic_state isn't the entire device state, but only the full state of some objects in that device. This has been an endless source of confusion and thus bugs. We can rename the drm_atomic_state structure to drm_atomic_commit to make it less confusing. This patch was created using: rg -l drm_atomic_state | \ xargs sed -i 's/drm_atomic_state/drm_atomic_commit/g; s/drm_atomic_commit_helper/drm_atomic_state_helper/g' mv drivers/gpu/drm/tests/drm_atomic_state_test.c drivers/gpu/drm/tests/drm_atomic_commit_test.c Acked-by: Simona Vetter Acked-by: Thomas Zimmermann Acked-by: Jani Nikula Reviewed-by: Luca Ceresoli Tested-by: Luca Ceresoli Signed-off-by: Maxime Ripard Signed-off-by: Dave Airlie Link: https://patch.msgid.link/20260427-drm-drm-atomic-update-v4-1-c0e713bfdf25@kernel.org

Convert 'alloc_obj' family to use the new default GFP_KERNEL argument

2026-02-22T01:09:51+00:00

This was done entirely with mindless brute force, using git grep -l '\