kernel/linux.git/drivers/gpu/drm/stm, branch v6.18.21

drm/stm: ltdc: handle lvds pixel clock

2025-08-28T15:43:57+00:00

Handle LVDS pixel clock. The LTDC operates with multiple clock domains for register access, requiring all clocks to be provided during read/write operations. This imposes a dependency between the LVDS and LTDC to access correctly all LTDC registers. And because both IPs' pixel rates must be synchronized, the LTDC has to handle the LVDS clock. Signed-off-by: Yannick Fertre Acked-by: Yannick Fertre Acked-by: Philippe Cornu Link: https://lore.kernel.org/r/20250822-drm-misc-next-v5-8-9c825e28f733@foss.st.com Signed-off-by: Raphael Gallais-Pou

drm/stm: ltdc: support new hardware version for STM32MP25 SoC

2025-08-28T15:43:56+00:00

STM32MP25 SoC features a new version of the LTDC IP. Add its compatible to the list of device to probe and implement its quirks. This hardware supports a pad frequency of 150MHz and a peripheral bus clock. Signed-off-by: Yannick Fertre Acked-by: Yannick Fertre Acked-by: Philippe Cornu Link: https://lore.kernel.org/r/20250822-drm-misc-next-v5-7-9c825e28f733@foss.st.com Signed-off-by: Raphael Gallais-Pou

drm/stm: ltdc: unify log system

2025-08-27T12:54:44+00:00

DRM_ERROR and similar are deprecated. Use drm_dev based logging. Link: https://lore.kernel.org/r/20250821130356.883553-1-raphael.gallais-pou@foss.st.com Acked-by: Yannick Fertre Link: https://lore.kernel.org/r/20250825132951.547899-1-raphael.gallais-pou@foss.st.com Signed-off-by: Raphael Gallais-Pou

drm/bridge: stm_lvds: convert to devm_drm_bridge_alloc() API

2025-05-21T11:40:09+00:00

This is the new API for allocating DRM bridges. Acked-by: Raphael Gallais-Pou Acked-by: Maxime Ripard Reviewed-by: Anusha Srivatsa Link: https://lore.kernel.org/r/20250509-drm-bridge-convert-to-alloc-api-v3-15-b8bc1f16d7aa@bootlin.com Signed-off-by: Luca Ceresoli

drm/bridge: Add encoder parameter to drm_bridge_funcs.attach

2025-03-20T13:45:38+00:00

The drm_bridge structure contains an encoder pointer that is widely used by bridge drivers. This pattern is largely documented as deprecated in other KMS entities for atomic drivers. However, one of the main use of that pointer is done in attach to just call drm_bridge_attach on the next bridge to add it to the bridge list. While this dereferences the bridge->encoder pointer, it's effectively the same encoder the bridge was being attached to. We can make it more explicit by adding the encoder the bridge is attached to to the list of attach parameters. This also removes the need to dereference bridge->encoder in most drivers. Reviewed-by: Dmitry Baryshkov Reviewed-by: Douglas Anderson Tested-by: Douglas Anderson Tested-by: Luca Ceresoli Reviewed-by: Luca Ceresoli Link: https://patchwork.freedesktop.org/patch/msgid/20250313-bridge-connector-v6-1-511c54a604fb@kernel.org Signed-off-by: Maxime Ripard

drm/stm: move to devm_platform_ioremap_resource() usage

2025-02-26T14:27:07+00:00

Replace platform_get_resource + devm_ioremap_resource with just devm_platform_ioremap_resource() Used Coccinelle to do this change. SmPl patch: @rule_1@ identifier res; expression ioremap_res; identifier pdev; @@ -struct resource *res; ... -res = platform_get_resource(pdev,...); -ioremap_res = devm_ioremap_resource(...); +ioremap_res = devm_platform_ioremap_resource(pdev,0); Cc: Yannick Fertre Cc: Raphael Gallais-Pou Cc: Philippe Cornu Acked-by: Raphael Gallais-Pou Signed-off-by: Anusha Srivatsa Acked-by: Raphaël Gallais-Pou Link: https://lore.kernel.org/r/20250225-memory-drm-misc-next-v1-8-9d0e8761107a@redhat.com Signed-off-by: Maxime Ripard

drm/bridge: Pass full state to atomic_disable

2025-02-19T15:59:12+00:00

It's pretty inconvenient to access the full atomic state from drm_bridges, so let's change the atomic_disable hook prototype to pass it directly. Reviewed-by: Dmitry Baryshkov Reviewed-by: Douglas Anderson Tested-by: Douglas Anderson Link: https://lore.kernel.org/r/20250213-bridge-connector-v3-4-e71598f49c8f@kernel.org Signed-off-by: Maxime Ripard

drm/bridge: Pass full state to atomic_enable

2025-02-19T15:59:12+00:00

It's pretty inconvenient to access the full atomic state from drm_bridges, so let's change the atomic_enable hook prototype to pass it directly. Reviewed-by: Dmitry Baryshkov Reviewed-by: Douglas Anderson Tested-by: Douglas Anderson Link: https://lore.kernel.org/r/20250213-bridge-connector-v3-3-e71598f49c8f@kernel.org Signed-off-by: Maxime Ripard

Merge remote-tracking branch 'drm/drm-next' into drm-misc-next

2024-12-09T15:35:21+00:00

The v6.13-rc2 release included a bunch of breaking changes, specifically the MODULE_IMPORT_NS commit. Backmerge in order to fix them before the next pull-request. Include the fix from Stephen Roswell. Caused by commit 25c3fd1183c0 ("drm/virtio: Add a helper to map and note the dma addrs and lengths") Interacting with commit cdd30ebb1b9f ("module: Convert symbol namespace to string literal") Reported-by: Stephen Rothwell Link: https://patchwork.freedesktop.org/patch/msgid/20241209121717.2abe8026@canb.auug.org.au Signed-off-by: Maarten Lankhorst

drm: remove driver date from struct drm_driver and all drivers

2024-12-05T10:35:42+00:00

We stopped using the driver initialized date in commit 7fb8af6798e8 ("drm: deprecate driver date") and (eventually) started returning "0" for drm_version ioctl instead. Finish the job, and remove the unused date member from struct drm_driver, its initialization from drivers, along with the common DRIVER_DATE macros. v2: Also update drivers/accel (kernel test robot) Reviewed-by: Javier Martinez Canillas Acked-by: Alex Deucher Acked-by: Simon Ser Acked-by: Jeffrey Hugo Acked-by: Lucas De Marchi Acked-by: Dmitry Baryshkov # msm Reviewed-by: Thomas Zimmermann Link: https://patchwork.freedesktop.org/patch/msgid/1f2bf2543aed270a06f6c707fd6ed1b78bf16712.1733322525.git.jani.nikula@intel.com Signed-off-by: Jani Nikula