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path: root/drivers/gpu
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2026-02-12drm/i915: Remove i915_reg.h from intel_display_irq.cUma Shankar
Move VLV_IRQ_REGS to common header for interrupt to make intel_display_irq.c free from including i915_reg.h. v2: Move interrupt to dedicated header (Jani) Signed-off-by: Uma Shankar <uma.shankar@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Link: https://patch.msgid.link/20260205094341.1882816-18-uma.shankar@intel.com
2026-02-12drm/i915: Remove i915_reg.h from intel_fifo_underrun.cUma Shankar
Move GEN7_ERR_INT reg to common header to make intel_fifo_underrun.c free from including i915_reg.h. v2: Move GEN7_ERR_INT regs to display header (Jani) Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Uma Shankar <uma.shankar@intel.com> Link: https://patch.msgid.link/20260205094341.1882816-17-uma.shankar@intel.com
2026-02-12drm/i915: Remove i915_reg.h from intel_psr.cUma Shankar
Move some chicken registers to display header to make intel_psr.c free from including i915_reg.h. v3: Update commit header v2: Use display header instead of gmd common include (Jani) Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Uma Shankar <uma.shankar@intel.com> Link: https://patch.msgid.link/20260205094341.1882816-16-uma.shankar@intel.com
2026-02-12drm/i915: Remove i915_reg.h from intel_rom.cUma Shankar
Make intel_rom.c free from including i915_reg.h. v5: Use SPDX (Jani) v4: Move oprom reg to separate header (Ville) v3: Update patch header v2: Use display header instead of gmd common include (Jani) Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Uma Shankar <uma.shankar@intel.com> Link: https://patch.msgid.link/20260205094341.1882816-15-uma.shankar@intel.com
2026-02-12Revert "drm/pagemap: Disable device-to-device migration"Thomas Hellström
With commit a69d1ab971a6 ("mm: Fix a hmm_range_fault() livelock / starvation problem") device-to-device migration is not functional again and the disabling can be reverted. Add the above commit as a Fixes: tag in order for the revert to not take place unless that commit is present. This reverts commit 10dd1eaa80a56d3cf6d7c36b5269c8fed617f001. Cc: Matthew Brost <matthew.brost@intel.com> Fixes: a69d1ab971a6 ("mm: Fix a hmm_range_fault() livelock / starvation problem") Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com> Reviewed-by: Matthew Brost <matthew.brost@intel.com> Link: https://patch.msgid.link/20260211104159.114947-1-thomas.hellstrom@linux.intel.com
2026-02-12drm/{i915, xe}: Remove i915_reg.h from g4x_hdmi.cUma Shankar
Move TRANS_CHICKEN1 reg to display header to make g4x_hdmi.c free from i915_reg.h dependency. v2: Remove from common header in include and use display_regs.h (Jani) Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Uma Shankar <uma.shankar@intel.com> Link: https://patch.msgid.link/20260205094341.1882816-14-uma.shankar@intel.com
2026-02-12drm/i915: Remove i915_reg.h from i9xx_wm.cUma Shankar
Move FW_BLC_SELF to common header to make i9xx_wm.c free from i915_reg.h include. Introduce a common intel_gmd_misc_regs.h to define common miscellaneous register definitions across graphics and display. v3: MISC header included as needed, drop from i915_reg (Jani) v2: Introdue a common misc header for GMD Signed-off-by: Uma Shankar <uma.shankar@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Link: https://patch.msgid.link/20260205094341.1882816-13-uma.shankar@intel.com
2026-02-12drm/i915: Remove i915_reg.h from g4x_dp.cUma Shankar
Move DE_IRQ_REGS to display header to make g4x_dp.c free from i915_reg.h dependency. These registers are only used by display and gvt. v3: Drop a superfluous include (Jani) v2: Move DE interrupt regs from common to display header (Jani) Signed-off-by: Uma Shankar <uma.shankar@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Link: https://patch.msgid.link/20260205094341.1882816-12-uma.shankar@intel.com
2026-02-12drm/i915: Remove i915_reg.h from intel_overlay.cUma Shankar
Move GEN2_ISR and some interrupt definitions to common header. This removes dependency of i915_reg.h from intel_overlay.c. v3: Rename interrupt header with regs suffix (Jani) v2: Create a separate file for common interrupts (Jani) Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Uma Shankar <uma.shankar@intel.com> Link: https://patch.msgid.link/20260205094341.1882816-11-uma.shankar@intel.com
2026-02-12drm/i915: Remove i915_reg.h from intel_display.cUma Shankar
Move CHICKEN_PIPESL_1 register definition to display header. This allows intel_display.c free of i915_reg.h include. v3: Fix commit header (Jani) v2: Drop common header in include and use display_regs.h (Jani) Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Uma Shankar <uma.shankar@intel.com> Link: https://patch.msgid.link/20260205094341.1882816-10-uma.shankar@intel.com
2026-02-12drm/i915: Remove i915_reg.h from intel_dram.cUma Shankar
Make intel_dram.c free from including i915_reg.h. v3: Move MEM_SS info reg to display instead of pcode header (Jani) v2: Move mem config register to newly added pcode header (Jani) Signed-off-by: Uma Shankar <uma.shankar@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Link: https://patch.msgid.link/20260205094341.1882816-9-uma.shankar@intel.com
2026-02-12drm/i915: Move GMD_ID and mask to intel_gt headerUma Shankar
GMD_ID* is relevant only for GT, hence moving the same together in gt/intel_gt_regs.h Signed-off-by: Uma Shankar <uma.shankar@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Link: https://patch.msgid.link/20260205094341.1882816-8-uma.shankar@intel.com
2026-02-12drm/i915: Remove i915_reg.h from intel_display_device.cUma Shankar
Move GU_CNTL_PROTECTED and GMD_ID_DISPLAY to common header, this helps intel_display_device.c free from i915_reg.h dependency. v2: Move GMD_ID_DISPLAY to display header instead of common (Jani) Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Uma Shankar <uma.shankar@intel.com> Link: https://patch.msgid.link/20260205094341.1882816-7-uma.shankar@intel.com
2026-02-12drm/{i915, xe}: Extract pcode definitions to common headerUma Shankar
There are certain register definitions which are commonly shared by i915, xe and display. Extract the same to a common header to avoid duplication. Move GEN6_PCODE_MAILBOX to common pcode header to make intel_cdclk.c free from including i915_reg.h. v3: Include pcode header as required, instead in i915_reg.h (Jani) v2: Make the header granular and per feature (Jani) Signed-off-by: Uma Shankar <uma.shankar@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Link: https://patch.msgid.link/20260205094341.1882816-6-uma.shankar@intel.com
2026-02-12drm/i915: Extract DSPCLK_GATE_D from i915_reg to displayUma Shankar
Move DSPCLK_GATE_D register definition to display header. This allows intel_gmbus.c not to include i915_reg.h. v3: Update commit header and message (Jani) v2: Drop common header in include and use display_regs.h (Jani) Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Uma Shankar <uma.shankar@intel.com> Link: https://patch.msgid.link/20260205094341.1882816-5-uma.shankar@intel.com
2026-02-12drm/i915: Extract display interrupt definitionsUma Shankar
Extract DE Interrupt registers from i915_reg.h to display header. This allows intel_display_rps.c not to include i915_reg.h v2: Update commit message (Jani) Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Uma Shankar <uma.shankar@intel.com> Link: https://patch.msgid.link/20260205094341.1882816-4-uma.shankar@intel.com
2026-02-12drm/i915: Extract South chicken registers from i915_reg.h to displayUma Shankar
Extract South Chicken registers from i915_reg.h to display header. This allows intel_pch_refclk.c not to include i915_reg.h v3: Drop whitespace changes, commit header updated (Jani) v2: Drop common header in include and use display_regs.h (Jani) Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Uma Shankar <uma.shankar@intel.com> Link: https://patch.msgid.link/20260205094341.1882816-3-uma.shankar@intel.com
2026-02-12drm/i915: Extract display registers from i915_reg.h to displayUma Shankar
There are certain register definitions which are defined in i915_reg.h which are exclusively needed by display. Move the same to display headers to remove i915_reg.h includes from display. This is a step towards making display independent of i915. intel_clock_gating.c can include display header directly, since its usage is planned to be re-factored and will be moved within display. v3: Updated subject and commit message (Jani) v2: Drop common header in include and use display_regs.h (Jani) Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Uma Shankar <uma.shankar@intel.com> Link: https://patch.msgid.link/20260205094341.1882816-2-uma.shankar@intel.com
2026-02-12drm/i915/acpi: free _DSM package when no connectorsKaushlendra Kumar
acpi_evaluate_dsm_typed() returns an ACPI package in pkg. When pkg->package.count == 0, we returned without freeing pkg, leaking memory. Free pkg before returning on the empty case. Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com> Fixes: 337d7a1621c7 ("drm/i915: Fix invalid access to ACPI _DSM objects") Reviewed-by: Jani Nikula <jani.nikula@intel.com> Link: https://patch.msgid.link/20260109032549.1826303-1-kaushlendra.kumar@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com> (cherry picked from commit c0a27a0ca8a34e96d08bb05a2c5d5ccf63fb8dc0) Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2026-02-12drm/i915/dp: Fix pipe BPP clamping due to HDRImre Deak
The pipe BPP value shouldn't be set outside of the source's / sink's valid pipe BPP range, ensure this when increasing the minimum pipe BPP value to 30 due to HDR. While at it debug print if the HDR mode was requested for a connector by setting the corresponding HDR connector property. This indicates if the requested HDR mode could not be enabled, since the selected pipe BPP is below 30, due to a sink capability or link BW limit. v2: - Also handle the case where the sink could support the target 30 BPP only in DSC mode due to a BW limit, but the sink doesn't support DSC or 30 BPP as a DSC input BPP. (Chaitanya) - Debug print the connector's HDR mode in the link config dump, to indicate if a BPP >= 30 required by HDR couldn't be reached. (Ankit) - Add Closes: trailer. (Ankit) - Don't print the 30 BPP-outside of valid BPP range debug message if the min BPP is already > 30 (and so a target BPP >= 30 required for HDR is ensured). Closes: https://gitlab.freedesktop.org/drm/xe/kernel/-/issues/7052 Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/15503 Fixes: ba49a4643cf53 ("drm/i915/dp: Set min_bpp limit to 30 in HDR mode") Cc: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com> Cc: <stable@vger.kernel.org> # v6.18+ Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> # v1 Reviewed-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com> Signed-off-by: Imre Deak <imre.deak@intel.com> Link: https://patch.msgid.link/20260209133817.395823-1-imre.deak@intel.com (cherry picked from commit 08b7ef16b6a03e8c966e286ee1ac608a6ffb3d4a) Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
2026-02-11Merge tag 'driver-core-7.0-rc1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core Pull driver core updates from Danilo Krummrich: "Bus: - Ensure bus->match() is consistently called with the device lock held - Improve type safety of bus_find_device_by_acpi_dev() Devtmpfs: - Parse 'devtmpfs.mount=' boot parameter with kstrtoint() instead of simple_strtoul() - Avoid sparse warning by making devtmpfs_context_ops static IOMMU: - Do not register the qcom_smmu_tbu_driver in arm_smmu_device_probe() MAINTAINERS: - Add the new driver-core mailing list (driver-core@lists.linux.dev) to all relevant entries - Add missing tree location for "FIRMWARE LOADER (request_firmware)" - Add driver-model documentation to the "DRIVER CORE" entry - Add missing driver-core maintainers to the "AUXILIARY BUS" entry Misc: - Change return type of attribute_container_register() to void; it has always been infallible - Do not export sysfs_change_owner(), sysfs_file_change_owner() and device_change_owner() - Move devres_for_each_res() from the public devres header to drivers/base/base.h - Do not use a static struct device for the faux bus; allocate it dynamically Revocable: - Patches for the revocable synchronization primitive have been scheduled for v7.0-rc1, but have been reverted as they need some more refinement Rust: - Device: - Support dev_printk on all device types, not just the core Device struct; remove now-redundant .as_ref() calls in dev_* print calls - Devres: - Introduce an internal reference count in Devres<T> to avoid a deadlock condition in case of (indirect) nesting - DMA: - Allow drivers to tune the maximum DMA segment size via dma_set_max_seg_size() - I/O: - Introduce the concept of generic I/O backends to handle different kinds of device shared memory through a common interface. This enables higher-level concepts such as register abstractions, I/O slices, and field projections to be built generically on top. In a first step, introduce the Io, IoCapable<T>, and IoKnownSize trait hierarchy for sharing a common interface supporting offset validation and bound-checking logic between I/O backends. - Refactor MMIO to use the common I/O backend infrastructure - Misc: - Add __rust_helper annotations to C helpers for inlining into Rust code - Use "kernel vertical" style for imports - Replace kernel::c_str! with C string literals - Update ARef imports to use sync::aref - Use pin_init::zeroed() for struct auxiliary_device_id and debugfs file_operations initialization - Use LKMM atomic types in debugfs doc-tests - Various minor comment and documentation fixes - PCI: - Implement PCI configuration space accessors using the common I/O backend infrastructure - Document pci::Bar device endianness assumptions - SoC: - Abstractions for struct soc_device and struct soc_device_attribute - Sample driver for soc::Device" * tag 'driver-core-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: (79 commits) rust: devres: fix race condition due to nesting rust: dma: add missing __rust_helper annotations samples: rust: pci: Remove some additional `.as_ref()` for `dev_*` print Revert "revocable: Revocable resource management" Revert "revocable: Add Kunit test cases" Revert "selftests: revocable: Add kselftest cases" driver core: remove device_change_owner() export sysfs: remove exports of sysfs_*change_owner() driver core: disable revocable code from build revocable: Add KUnit test for concurrent access revocable: fix SRCU index corruption by requiring caller-provided storage revocable: Add KUnit test for provider lifetime races revocable: Fix races in revocable_alloc() using RCU driver core: fix inverted "locked" suffix of driver_match_device() rust: io: move MIN_SIZE and io_addr_assert to IoKnownSize rust: pci: re-export ConfigSpace rust: dma: allow drivers to tune max segment size gpu: tyr: remove redundant `.as_ref()` for `dev_*` print rust: auxiliary: use `pin_init::zeroed()` for device ID rust: debugfs: use pin_init::zeroed() for file_operations ...
2026-02-12drm/virtio: Allow importing prime buffers when 3D is enabledVal Packett
This functionality was added for using a KMS-only virtgpu with a physical (or SR-IOV) headless GPU in passthrough, but it should not be restricted to KMS-only mode. It can be used with cross-domain to pass guest memfds to the host compositor with zero copies (using udmabuf on both sides). Drop the check for the absence of virgl_3d to allow for more use cases. Fixes: ca77f27a2665 ("drm/virtio: Import prime buffers from other devices as guest blobs") Signed-off-by: Val Packett <val@invisiblethingslab.com> Reviewed-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com> Link: https://patch.msgid.link/20251210154755.1119861-2-val@invisiblethingslab.com
2026-02-11Merge tag 'kbuild-7.0-1' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux Pull Kbuild/Kconfig updates from Nathan Chancellor: "Kbuild: - Drop '*_probe' pattern from modpost section check allowlist, which hid legitimate warnings (Johan Hovold) - Disable -Wtype-limits altogether, instead of enabling at W=2 (Vincent Mailhol) - Improve UAPI testing to skip testing headers that require a libc when CONFIG_CC_CAN_LINK is not set, opening up testing of headers with no libc dependencies to more environments (Thomas Weißschuh) - Update gendwarfksyms documentation with required dependencies (Jihan LIN) - Reject invalid LLVM= values to avoid unintentionally falling back to system toolchain (Thomas Weißschuh) - Add a script to help run the kernel build process in a container for consistent environments and testing (Guillaume Tucker) - Simplify kallsyms by getting rid of the relative base (Ard Biesheuvel) - Performance and usability improvements to scripts/make_fit.py (Simon Glass) - Minor various clean ups and fixes Kconfig: - Move XPM icons to individual files, clearing up GTK deprecation warnings (Rostislav Krasny) - Support depends on FOO if BAR as syntactic sugar for depends on FOO || !BAR (Nicolas Pitre, Graham Roff) - Refactor merge_config.sh to use awk over shell/sed/grep, dramatically speeding up processing large number of config fragments (Anders Roxell, Mikko Rapeli)" * tag 'kbuild-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux: (39 commits) kbuild: remove dependency of run-command on config scripts/make_fit: Compress dtbs in parallel scripts/make_fit: Support a few more parallel compressors kbuild: Support a FIT_EXTRA_ARGS environment variable scripts/make_fit: Move dtb processing into a function scripts/make_fit: Support an initial ramdisk scripts/make_fit: Speed up operation rust: kconfig: Don't require RUST_IS_AVAILABLE for rustc-option MAINTAINERS: Add scripts/install.sh into Kbuild entry modpost: Amend ppc64 save/restfpr symnames for -Os build MIPS: tools: relocs: Ship a definition of R_MIPS_PC32 streamline_config.pl: remove superfluous exclamation mark kbuild: dummy-tools: Add python3 scripts: kconfig: merge_config.sh: warn on duplicate input files scripts: kconfig: merge_config.sh: use awk in checks too scripts: kconfig: merge_config.sh: refactor from shell/sed/grep to awk kallsyms: Get rid of kallsyms relative base mips: Add support for PC32 relocations in vmlinux Documentation: dev-tools: add container.rst page scripts: add tool to run containerized builds ...
2026-02-11Merge tag 'drm-next-2026-02-11' of https://gitlab.freedesktop.org/drm/kernelLinus Torvalds
Pull drm updates from Dave Airlie: "Highlights: - amdgpu support for lots of new IP blocks which means newer GPUs - xe has a lot of SR-IOV and SVM improvements - lots of intel display refactoring across i915/xe - msm has more support for gen8 platforms - Given up on kgdb/kms integration, it's too hard on modern hw core: - drop kgdb support - replace system workqueue with percpu - account for property blobs in memcg - MAINTAINERS updates for xe + buddy rust: - Fix documentation for Registration constructors - Use pin_init::zeroed() for fops initialization - Annotate DRM helpers with __rust_helper - Improve safety documentation for gem::Object::new() - Update AlwaysRefCounted imports - mm: Prevent integer overflow in page_align() atomic: - add drm_device pointer to drm_private_obj - introduce gamma/degamma LUT size check buddy: - fix free_trees memory leak - prevent BUG_ON bridge: - introduce drm_bridge_unplug/enter/exit - add connector argument to .hpd_notify - lots of recounting conversions - convert rockchip inno hdmi to bridge - lontium-lt9611uxc: switch to HDMI audio helpers - dw-hdmi-qp: add support for HPD-less setups - Algoltek AG6311 support panels: - edp: CSW MNE007QB3-1, AUO B140HAN06.4, AUO B140QAX01.H - st75751: add SPI support - Sitronix ST7920, Samsung LTL106HL02 - LG LH546WF1-ED01, HannStar HSD156J - BOE NV130WUM-T08 - Innolux G150XGE-L05 - Anbernic RG-DS dma-buf: - improve sg_table debugging - add tracepoints - call clear_page instead of memset - start to introduce cgroup memory accounting in heaps - remove sysfs stats dma-fence: - add new helpers dp: - mst: avoid oob access with vcpi=0 hdmi: - limit infoframes exposure to userspace gem: - reduce page table overhead with THP - fix leak in drm_gem_get_unmapped_area gpuvm: - API sanitation for rust bindings sched: - introduce new helpers panic: - report invalid panic modes - add kunit tests i915/xe display: - Expose sharpness only if num_scalers is >= 2 - Add initial Xe3P_LPD for NVL - BMG FBC support - Add MTL+ platforms to support dpll framework _ fix DIMM_S DRM decoding on ICL - Return to using AUX interrupts - PSR/Panel replay refactoring - use consolidation HDMI tables - Xe3_LPD CD2X dividier changes xe: - vfio: add vfio_pci for intel GPU - multi queue support - dynamic pagemaps and multi-device SVM - expose temp attribs in hwmon - NO_COMPRESSION bo flag - expose MERT OA unit - sysfs survivability refactor - SRIOV PF: add MERT support - enable SR-IOV VF migration - Enable I2C/NVM on Crescent Island - Xe3p page reclaimation support - introduce SRIOV scheduler groups - add SoC remappt support in system controller - insert compiler barriers in GuC code - define NVL GuC firmware - handle GT resume failure - fix drm scheduler layering violations - enable GSC loading and PXP for PTL - disable GuC Power DCC strategy on PTL - unregister drm device on probe error i915: - move to kernel standard fault injection - bump recommended GuC version for DG2 and MTL amdgpu: - SMUIO 15.x, PSP 15.x support - IH 6.1.1/7.1 support - MMHUB 3.4/4.2 support - GC 11.5.4/12.1 support - SDMA 6.1.4/7.1/7.11.4 support - JPEG 5.3 support - UserQ updates - GC 9 gfx queue reset support - TTM memory ops parallelization - convert legacy logging to new helpers - DC analog fixes amdkfd: - GC 11.5.4/12.1 suppport - SDMA 6.1.4/7.1 support - per context support - increase kfd process hash table - Reserved SDMA rework radeon: - convert legacy logging to new helpers - use devm for i2c adapters msm: - GPU - Document a612/RGMU dt bindings - UBWC 6.0 support (for A840 / Kaanapali) - a225 support - DPU: - Switch to use virtual planes by default - Fix DSI CMD panels on DPU 3.x - Rewrite format handling to remove intermediate representation - Fix watchdog on DPU 8.x+ - Fix TE / Vsync source setting on DPU 8.x+ - Add 3D_Mux on SC7280 - Kaanapali platform support - Fix UBWC register programming - Make RM reserve DSPP-enabled mixers for CRTCs with LMs - Gamma correction support - DP: - Enable support for eDP 1.4+ link rate tables - Fix MDSS1 DP indices on SA8775P, making them to work - Fix msm_dp_ctrl_config_msa() to work with LLVM 20 - DSI: - Document QCS8300 as compatible with SA8775P - Kaanapali platform support - DSI PHY: - switch to divider_determine_rate() - MDP5: - Drop support for MSM8998, SDM660 and SDM630 (switch over to DPU) - MDSS: - Kaanapali platform support - Fixed UBWC register programming nova-core: - Prepare for Turing support. This includes parsing and handling Turing-specific firmware headers and sections as well as a Turing Falcon HAL implementation - Get rid of the Result<impl PinInit<T, E>> anti-pattern - Relocate initializer-specific code into the appropriate initializer - Use CStr::from_bytes_until_nul() to remove custom helpers - Improve handling of unexpected firmware values - Clean up redundant debug prints - Replace c_str!() with native Rust C-string literals - Update nova-core task list nova: - Align GEM object size to system page size tyr: - Use generated uAPI bindings for GpuInfo - Replace manual sleeps with read_poll_timeout() - Replace c_str!() with native Rust C-string literals - Suppress warnings for unread fields - Fix incorrect register name in print statement nouveau: - fix big page table support races in PTE management - improve reclocking on tegra 186+ amdxdna: - fix suspend race conditions - improve handling of zero tail pointers - fix cu_idx overwritten during command setup - enable hardware context priority - remove NPU2 support - update message buffer allocation requirements - update firmware version check ast: - support imported cursor buffers - big endian fixes etnaviv: - add PPU flop reset support imagination: - add AM62P support - introduce hw version checks ivpu: - implement warm boot flow panfrost: - add bo sync ioctl - add GPU_PM_RT support for RZ/G3E SoC panthor: - add bo sync ioctl - enable timestamp propagation - scheduler robustness improvements - VM termination fixes - huge page support rockchip: - RK3368 HDMI Support - get rid of atomic_check fixups - RK3506 support - RK3576/RK3588 improved HPD handling rz-du: - RZ/V2H(P) MIPI-DSI Support v3d: - fix DMA segment size - convert to new logging helpers mediatek: - move DP training to hotplug thread - convert logging to new helpers - add support for HS speed DSI - Genio 510/700/1200-EVK, Radxa NIO-12L HDMI support atmel-hlcdc: - switch to drmm resource - support nomodeset - use newer helpers hisilicon: - fix various DP bugs renesas: - fix kernel panic on reboot exynos: - fix vidi_connection_ioctl using wrong device - fix vidi_connection deref user ptr - fix concurrency regression with vidi_context vkms: - add configfs support for display configuration * tag 'drm-next-2026-02-11' of https://gitlab.freedesktop.org/drm/kernel: (1610 commits) drm/xe/pm: Disable D3Cold for BMG only on specific platforms drm/xe: Fix kerneldoc for xe_tlb_inval_job_alloc_dep drm/xe: Fix kerneldoc for xe_gt_tlb_inval_init_early drm/xe: Fix kerneldoc for xe_migrate_exec_queue drm/xe/query: Fix topology query pointer advance drm/xe/guc: Fix kernel-doc warning in GuC scheduler ABI header drm/xe/guc: Fix CFI violation in debugfs access. accel/amdxdna: Move RPM resume into job run function accel/amdxdna: Fix incorrect DPM level after suspend/resume nouveau/vmm: start tracking if the LPT PTE is valid. (v6) nouveau/vmm: increase size of vmm pte tracker struct to u32 (v2) nouveau/vmm: rewrite pte tracker using a struct and bitfields. accel/amdxdna: Fix incorrect error code returned for failed chain command accel/amdxdna: Remove hardware context status drm/bridge: imx8qxp-pixel-combiner: Fix bailout for imx8qxp_pc_bridge_probe() drm/panel: ilitek-ili9882t: Remove duplicate initializers in tianma_il79900a_dsc drm/i915/display: fix the pixel normalization handling for xe3p_lpd drm/exynos: vidi: use ctx->lock to protect struct vidi_context member variables related to memory alloc/free drm/exynos: vidi: fix to avoid directly dereferencing user pointer drm/exynos: vidi: use priv->vidi_dev for ctx lookup in vidi_connection_ioctl() ...
2026-02-11drm/xe: Make xe_modparam.force_vram_bar_size signedShuicheng Lin
vram_bar_size is registered as an int module parameter and is documented to accept negative values to disable BAR resizing. Store it as an int in xe_modparam as well, so negative values work as intended and the module_param type matches. Fixes: 80742a1aa26e ("drm/xe: Allow to drop vram resizing") Reviewed-by: Michal Wajdeczko <michal.wajdeczko@intel.com> Signed-off-by: Shuicheng Lin <shuicheng.lin@intel.com> Link: https://patch.msgid.link/20260202181853.1095736-2-shuicheng.lin@intel.com Signed-off-by: Matt Roper <matthew.d.roper@intel.com>
2026-02-11drm/i915/acpi: free _DSM package when no connectorsKaushlendra Kumar
acpi_evaluate_dsm_typed() returns an ACPI package in pkg. When pkg->package.count == 0, we returned without freeing pkg, leaking memory. Free pkg before returning on the empty case. Signed-off-by: Kaushlendra Kumar <kaushlendra.kumar@intel.com> Fixes: 337d7a1621c7 ("drm/i915: Fix invalid access to ACPI _DSM objects") Reviewed-by: Jani Nikula <jani.nikula@intel.com> Link: https://patch.msgid.link/20260109032549.1826303-1-kaushlendra.kumar@intel.com Signed-off-by: Jani Nikula <jani.nikula@intel.com>
2026-02-11drm/xe/vf: Avoid reading media version when media GT is disabledPiotr Piórkowski
When the media GT is not allowed, a VF must not attempt to read the media version from the GuC. The GuC may not be loaded, and any attempt to communicate with it would result in a timeout and a VF probe failure: (...) [ 1912.406046] xe 0000:01:00.1: [drm] *ERROR* Tile0: GT1: GuC mmio request 0x5507: no reply 0x5507 [ 1912.407277] xe 0000:01:00.1: [drm] *ERROR* Tile0: GT1: [GUC COMMUNICATION] MMIO send failed (-ETIMEDOUT) [ 1912.408689] xe 0000:01:00.1: [drm] *ERROR* VF: Tile0: GT1: Failed to reset GuC state (-ETIMEDOUT) [ 1912.413986] xe 0000:01:00.1: probe with driver xe failed with error -110 Let's skip reading the media version for VFs when the media GT is not allowed. v2: move the condition directly to the VF path Fixes: 7abd69278bb5 ("drm/xe/configfs: Add attribute to disable GT types") Signed-off-by: Piotr Piórkowski <piotr.piorkowski@intel.com> Cc: Matt Roper <matthew.d.roper@intel.com> Cc: Michal Wajdeczko <michal.wajdeczko@intel.com> Cc: Shuicheng Lin <shuicheng.lin@intel.com> Reviewed-by: Shuicheng Lin <shuicheng.lin@intel.com> Link: https://patch.msgid.link/20260202115041.2863357-1-piotr.piorkowski@intel.com Signed-off-by: Michał Winiarski <michal.winiarski@intel.com>
2026-02-11drm/tilcdc: Add support for DRM_BRIDGE_ATTACH_NO_CONNECTORKory Maincent (TI.com)
Convert the driver to use the DRM_BRIDGE_ATTACH_NO_CONNECTOR flag when attaching bridges. This modernizes the driver by delegating connector creation to the bridge subsystem through drm_bridge_connector_init() instead of manually searching for connectors created by the bridge. The custom tilcdc_encoder_find_connector() function is removed and replaced with the standard drm_bridge_connector infrastructure, which simplifies the code and aligns with current DRM bridge best practices. This change is safe as there are now no in-tree devicetrees that connect tilcdc to bridges which do not support the DRM_BRIDGE_ATTACH_NO_CONNECTOR flag. Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20260123-feature_tilcdc-v5-25-5a44d2aa3f6f@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-02-11drm/bridge: tda998x: Add support for DRM_BRIDGE_ATTACH_NO_CONNECTORKory Maincent (TI.com)
Add support for the DRM_BRIDGE_ATTACH_NO_CONNECTOR flag to allow display controller drivers to create their own connectors. This modernizes the driver to work with the current DRM bridge framework. The implementation includes: - Refactoring detection and EDID reading into bridge-usable helpers - Adding bridge operations: edid_read, detect, hpd_enable, hpd_disable - Setting appropriate bridge ops (DRM_BRIDGE_OP_EDID, DRM_BRIDGE_OP_DETECT, DRM_BRIDGE_OP_HPD) and connector type (HDMIA) - Skipping connector creation when DRM_BRIDGE_ATTACH_NO_CONNECTOR is set - Handling conditional connector cleanup in bridge_detach The driver maintains backward compatibility by continuing to create its own connector when the flag is not set. Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20260123-feature_tilcdc-v5-24-5a44d2aa3f6f@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-02-11drm/bridge: tda998x: Remove useless tda998x_connector_destroy wrapperKory Maincent (TI.com)
Use directly drm_connector_cleanup in the destroy ops instead of having a custom function that does nothing more. Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20260123-feature_tilcdc-v5-23-5a44d2aa3f6f@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-02-11drm/bridge: tda998x: Move tda998x_create/destroy into probe and removeKory Maincent (TI.com)
Now that tda998x_create and tda998x_destroy are called only in the probe function, there is no need for separate functions. Move the code into the tda998x_probe and tda998x_remove functions. Rewrite the cleanup path using goto calls in probe and reorder it in the remove function. Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20260123-feature_tilcdc-v5-22-5a44d2aa3f6f@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-02-11drm/bridge: tda998x: Remove component supportKory Maincent (TI.com)
The tilcdc driver no longer uses the component framework to bind the tda998x bridge driver. The component bind/unbind operations and the encoder initialization code are now dead code and can be safely removed. Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20260123-feature_tilcdc-v5-21-5a44d2aa3f6f@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-02-11drm/tilcdc: Use devm_drm_of_get_bridge() helperKory Maincent (TI.com)
Replace drm_of_find_panel_or_bridge() with the newer devm_drm_of_get_bridge() helper which simplifies the code by: - Automatically handling both panel and bridge cases internally - Managing the panel-to-bridge conversion when needed - Using devres for resource management, eliminating manual cleanup This removes the need for explicit panel-to-bridge conversion via devm_drm_panel_bridge_add_typed() and the associated error handling path. Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com> Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Link: https://patch.msgid.link/20260123-feature_tilcdc-v5-20-5a44d2aa3f6f@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-02-11drm/tilcdc: Convert to drm_device-based logging helpersKory Maincent (TI.com)
Replace dev_* logging calls with their DRM equivalents. This aligns with the DRM subsystem's logging infrastructure and provides better integration with DRM debugging mechanisms. The drm_* helpers automatically include device information and integrate with DRM's debug category filtering. Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20260123-feature_tilcdc-v5-19-5a44d2aa3f6f@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-02-11drm/tilcdc: Convert to DRM managed resourcesKory Maincent (TI.com)
Convert the tilcdc driver to use DRM managed resources (drmm_* APIs) to eliminate resource lifetime issues, particularly in probe deferral scenarios. This conversion addresses potential use-after-free bugs by ensuring proper cleanup ordering through the DRM managed resource framework. The changes include: - Replace drm_crtc_init_with_planes() with drmm_crtc_alloc_with_planes() - Replace drm_universal_plane_init() with drmm_universal_plane_alloc() - Replace drm_simple_encoder_init() with drmm_simple_encoder_alloc() - Remove manual cleanup in tilcdc_crtc_destroy() and error paths - Remove drm_encoder_cleanup() from encoder error handling paths - Use drmm_add_action_or_reset() for remaining cleanup operations This approach is recommended by the DRM subsystem for improved resource lifetime management and is particularly important for drivers that may experience probe deferral. Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20260123-feature_tilcdc-v5-18-5a44d2aa3f6f@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-02-11drm/tilcdc: Remove the use of drm_device private_dataKory Maincent (TI.com)
The DRM core documentation recommends against using dev_private: "Instead of using this pointer it is recommended that drivers use embed the struct &drm_device in their larger per-device structure." This patch refactors the tilcdc driver to follow this recommendation by embedding struct drm_device within struct tilcdc_drm_private and replacing all dev->dev_private accesses with the ddev_to_tilcdc_priv() helper macro that uses container_of(). This change aligns the driver with modern DRM best practices. Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20260123-feature_tilcdc-v5-17-5a44d2aa3f6f@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-02-11drm/tilcdc: Modernize driver initialization and cleanup pathsKory Maincent (TI.com)
Refactor the driver initialization to use modern DRM managed resource APIs, simplifying the code. The tilcdc_init and tilcdc_fini wrapper functions are removed since they served no purpose after the component framework was eliminated. Their logic is integrated directly into probe and remove. Key changes: - Use devm_drm_dev_alloc() instead of drm_dev_alloc(). - Use drmm_mode_config_init() instead of drm_mode_config_init(). - Align the remove path with the probe error path to ensure consistent cleanup ordering in both success and failure cases. - Adjust platform_set_drvdata() to store the private structure instead of the drm_device, matching the new allocation pattern. These changes reduce error-prone code while maintaining the same functional behavior. Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20260123-feature_tilcdc-v5-16-5a44d2aa3f6f@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-02-11drm/tilcdc: Move tilcdc_init/fini closer to probe/removeKory Maincent (TI.com)
Move tilcdc_init/fini functions adjacent to the probe and remove functions in preparation for cleanup and modernization. This improves readability for subsequent commits that will refactor these functions. No functional changes, only code reorganization. Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20260123-feature_tilcdc-v5-15-5a44d2aa3f6f@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-02-11drm/tilcdc: Use drm_module_platform_driver() helperKory Maincent (TI.com)
Use the drm_module_platform_driver() helper macro to simplify driver registration. This macro handles both the platform driver registration and the drm_firmware_drivers_only() check, making the custom init/exit functions unnecessary. Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20260123-feature_tilcdc-v5-14-5a44d2aa3f6f@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-02-11drm/tilcdc: Remove the useless module list supportKory Maincent (TI.com)
The tilcdc driver previously supported a sub-module system where external display drivers (panels, encoders) could register themselves through tilcdc_module_init() and be automatically initialized through a module list. This infrastructure became unused after the component framework support and panel driver was removed. Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20260123-feature_tilcdc-v5-13-5a44d2aa3f6f@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-02-11drm/tilcdc: Rename tilcdc_external to tilcdc_encoderKory Maincent (TI.com)
The tilcdc_external module describes the encoder part of the tilcdc driver. Rename it to tilcdc_encoder for better clarity and to make the naming more consistent with DRM subsystem conventions, where encoder-related files typically use "encoder" in their names. Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20260123-feature_tilcdc-v5-12-5a44d2aa3f6f@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-02-11drm/tilcdc: Rename external_encoder and external_connector to encoder and ↵Kory Maincent (TI.com)
connector Remove the "external_" prefix from encoder and connector members in the tilcdc driver. These are internal driver structures and the "external" naming is misleading. The simpler names better reflect that these are the primary encoder and connector managed by this driver. Also rename tilcdc_attach_external_device() to tilcdc_encoder_create() for consistency and to better describe the function's purpose. Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20260123-feature_tilcdc-v5-11-5a44d2aa3f6f@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-02-11drm/tilcdc: Remove unused encoder and connector tracking arraysKory Maincent (TI.com)
The num_encoders/encoders and num_connectors/connectors arrays in tilcdc_drm_private are never populated or used by the driver. Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20260123-feature_tilcdc-v5-10-5a44d2aa3f6f@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-02-11drm/tilcdc: Remove redundant #endif/#ifdef in debugfs codeKory Maincent (TI.com)
Remove the unnecessary #endif/#ifdef CONFIG_DEBUG_FS pair that splits the debugfs code section. This keeps all debugfs-related code within a single preprocessor conditional block, improving code readability. Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20260123-feature_tilcdc-v5-9-5a44d2aa3f6f@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-02-11drm/tilcdc: Remove tilcdc_panel_info structureKory Maincent (TI.com)
Remove the tilcdc_panel_info structure and its associated helper function as the structure contains only redundant or unused parameters. Most panel configuration parameters in tilcdc_panel_info are either: - Already represented by existing DRM mode flags (invert_pxl_clk, sync_edge via DRM_BUS_FLAG_*), or - Set to identical values across all instances (panel_info_default), making them effectively constants The removed fifo_th field is already handled by priv->fifo_th when set. Other removed fields (tft_alt_mode, raster_order) were always set to 0 in the only instance (panel_info_default) and thus had no effect. This simplifies the code by eliminating unnecessary abstraction while preserving all functional behavior. Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20260123-feature_tilcdc-v5-8-5a44d2aa3f6f@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-02-11drm/tilcdc: Remove component framework supportKory Maincent (TI.com)
The tilcdc driver previously used the component framework to bind external encoder subdrivers (specifically the TDA998x HDMI encoder). With the removal of these subdrivers in previous commits, the component framework is no longer needed. This commit removes all component framework infrastructure including: - Component master operations and bind/unbind callbacks - The is_componentized flag and conditional code paths - tilcdc_get_external_components() and tilcdc_add_component_encoder() - TDA998x-specific panel configuration The driver now uses a simplified initialization path that directly attaches external devices via the DRM bridge API, eliminating the complexity of dual code paths for componentized vs non-componentized configurations. This cleanup removes approximately 140 lines of code and makes the driver initialization flow more straightforward. Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20260123-feature_tilcdc-v5-7-5a44d2aa3f6f@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-02-11drm/tilcdc: Remove tilcdc panel driverKory Maincent (TI.com)
The tilcdc panel subdriver is a legacy, non-standard driver that has been replaced by the standard panel-dpi driver and panel-simple infrastructure. With the device tree bindings removed and all in-tree users migrated to use panel-dpi, this driver no longer has any associated device tree bindings or users. The panel-dpi driver combined with DRM bus flags provides equivalent functionality in a standard way that is compatible with the broader DRM panel ecosystem. This removal eliminates 400+ lines of redundant code and completes the migration to standard panel handling. Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20260123-feature_tilcdc-v5-6-5a44d2aa3f6f@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-02-11drm/tilcdc: Convert legacy panel binding via DT overlay at boot timeKory Maincent (TI.com)
To maintain backward compatibility while removing the deprecated tilcdc_panel driver, add a tilcdc_panel_legacy subdriver that converts the legacy "ti,tilcdc,panel" devicetree binding to the standard panel-dpi binding at early boot. The conversion uses an embedded device tree overlay that is applied and modified during subsys_initcall. The process: - Apply embedded overlay to create a tilcdc-panel-dpi node with port/endpoint connections to the LCDC - Copy all properties from the legacy panel node to the new tilcdc-panel-dpi node - Copy display-timings from the legacy panel - Convert legacy panel-info properties (invert-pxl-clk, sync-edge) to standard display timing properties (pixelclk-active, syncclk-active) - Disable the legacy panel by removing its compatible property to prevent the deprecated driver from binding The result is a standard tilcdc-panel-dpi node with proper endpoints and timing properties, allowing the DRM panel infrastructure to work with legacy devicetrees without modification. Other legacy panel-info properties are not migrated as they consistently use default values across all mainline devicetrees and can be hardcoded in the tilcdc driver. This feature is optional via CONFIG_DRM_TILCDC_PANEL_LEGACY and should only be enabled for systems with legacy devicetrees containing "ti,tilcdc,panel" nodes. Suggested-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com> Link: https://lore.kernel.org/all/1d9a9269-bfda-4d43-938b-2df6b82b9369@ideasonboard.com/ Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Reviewed-by: Herve Codina <herve.codina@bootlin.com> Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20260123-feature_tilcdc-v5-5-5a44d2aa3f6f@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-02-11drm/tilcdc: Add support for DRM bus flags and simplify panel configKory Maincent (TI.com)
Migrate CRTC mode configuration to use standard DRM bus flags in preparation for removing the tilcdc_panel driver and its custom tilcdc_panel_info structure. Add support for DRM_BUS_FLAG_PIXDATA_DRIVE_NEGEDGE and DRM_BUS_FLAG_SYNC_DRIVE_NEGEDGE flags to control pixel clock and sync signal edge polarity, while maintaining backward compatibility with the existing tilcdc panel info structure. Simplify several hardware parameters by setting them to fixed defaults based on common usage across existing device trees: - DMA burst size: 16 (previously configurable via switch statement) - AC bias frequency: 255 (previously panel-specific) - FIFO DMA request delay: 128 (previously panel-specific) These parameters show no variation in real-world usage, so hardcoding them simplifies the driver without losing functionality. Preserve FIFO threshold configurability by detecting the SoC type, as this parameter varies between AM33xx (8) and DA850 (16) platforms. Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20260123-feature_tilcdc-v5-4-5a44d2aa3f6f@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
2026-02-11drm/tilcdc: Remove simulate_vesa_sync flagKory Maincent (TI.com)
The tilcdc hardware does not generate VESA-compliant sync signals. It aligns the vertical sync (VS) on the second edge of the horizontal sync (HS) instead of the first edge. To compensate for this hardware behavior, the driver applies a timing adjustment in mode_fixup(). Previously, this adjustment was conditional based on the simulate_vesa_sync flag, which was only set when using external encoders. This appears problematic because: 1. The timing adjustment seems needed for the hardware behavior regardless of whether an external encoder is used 2. The external encoder infrastructure is driver-specific and being removed due to design issues 3. Boards using tilcdc without bridges (e.g., am335x-evm, am335x-evmsk) may not be getting the necessary timing adjustments Remove the simulate_vesa_sync flag and apply the VESA sync timing adjustment unconditionally, ensuring consistent behavior across all configurations. While it's unclear if the previous conditional behavior was causing actual issues, the unconditional adjustment better reflects the hardware's characteristics. Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com> Signed-off-by: Kory Maincent (TI.com) <kory.maincent@bootlin.com> Link: https://patch.msgid.link/20260123-feature_tilcdc-v5-3-5a44d2aa3f6f@bootlin.com Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
generated by cgit v1.2.3 (git 2.25.1) at 2026-05-27 01:29:53 +0000