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Migrate all existing drivers to use drmm_writeback_connector_init(), drop drm_writeback_connector_init() and drm_writeback_connector::encoder (it's unused afterwards). This series leaves former drm_writeback_connector_init_with_encoder() (renamed to drm_writeback_connector_init as a non-managed counterpart for drmm_writeback_connector_init()). It is supposed to be used by drivers which can not use drmm functions (like Intel). However I think it would be better to drop it completely. --- Changes in v6: - Dropped applied patch - Implemented suggestion by Alex to use drmm allocation for the writeback connector. - Link to v5: https://patch.msgid.link/20260505-wb-drop-encoder-v5-0-42567b7c7af2@oss.qualcomm.com Changes in v5: - Rebased on top of drm-misc-next - Expanded commit message for msm patch, describing devm vs drmm issues (Laurent) - Expanded commit messages, describing why the drivers are converted to drmm_writeback_connector_init() (Laurent) - Link to v4: https://lore.kernel.org/r/20251228-wb-drop-encoder-v4-0-58d28e668901@oss.qualcomm.com Changes in v4: - Rebase on top of drm-misc-next, dropping applied patch. - Added a note regarding memory leak in the AMDGPU driver. - Fixed a devm vs drmm issue in the msm/dpu driver. - Link to v3: https://lore.kernel.org/r/20250819-wb-drop-encoder-v3-0-b48a6af7903b@oss.qualcomm.com Changes in v3: - Fixed subject prefix for the rcar-du patch (Jessica Zhang) - Link to v2: https://lore.kernel.org/r/20250816-wb-drop-encoder-v2-0-f951de04f4f9@oss.qualcomm.com Changes in v2: - Switched to drm_crtc_mask() where applicable (Louis Chauvet) - Link to v1: https://lore.kernel.org/r/20250801-wb-drop-encoder-v1-0-824646042f7d@oss.qualcomm.com To: Maarten Lankhorst To: Maxime Ripard To: Thomas Zimmermann To: David Airlie To: Simona Vetter To: Harry Wentland To: Leo Li To: Rodrigo Siqueira To: Alex Deucher To: Christian König To: Liviu Dudau To: Laurent Pinchart To: Tomi Valkeinen To: Kieran Bingham To: Geert Uytterhoeven To: Magnus Damm To: Dave Stevenson To: Maíra Canal To: Raspberry Pi Kernel Maintenance Cc: dri-devel@lists.freedesktop.org Cc: linux-kernel@vger.kernel.org Cc: amd-gfx@lists.freedesktop.org Cc: linux-renesas-soc@vger.kernel.org --- Dmitry Baryshkov (9): drm/managed: implement managed versions of kzalloc_obj/objs() drm/amd/display: use drmm allocation for writeback connector drm/amd/display: use drmm_writeback_connector_init() drm/komeda: use drmm_writeback_connector_init() drm/mali: use drmm_writeback_connector_init() drm: renesas: rcar-du: use drmm_writeback_connector_init() drm/vc4: use drmm_writeback_connector_init() drm: writeback: drop excess connector initialization functions drm: writeback: rename drm_writeback_connector_init_with_encoder() drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 7 ++- .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_wb.c | 18 ++++-- .../drm/arm/display/komeda/komeda_wb_connector.c | 30 ++++++---- drivers/gpu/drm/arm/malidp_mw.c | 25 ++++---- drivers/gpu/drm/drm_writeback.c | 69 +++------------------- .../gpu/drm/renesas/rcar-du/rcar_du_writeback.c | 22 ++++--- drivers/gpu/drm/vc4/vc4_txp.c | 9 ++- include/drm/drm_managed.h | 22 +++++++ include/drm/drm_writeback.h | 22 +------ 9 files changed, 98 insertions(+), 126 deletions(-) --- base-commit: 2afdfc658f7a7e9ee2a67ec6663922da9c799c53 change-id: 20250801-wb-drop-encoder-97a0c75bd5d7 Best regards, -- With best wishes Dmitry