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8 daysMerge tag 'amd-drm-next-6.19-2025-12-02' of ↵Dave Airlie
https://gitlab.freedesktop.org/agd5f/linux into drm-next amd-drm-next-6.19-2025-12-02: amdgpu: - Unified MES fix - SMU 11 unbalanced irq fix - Fix for driver reloading on APUs - pp_table sysfs fix - Fix memory leak in fence handling - HDMI fix - DC cursor fixes - eDP panel parsing fix - Brightness fix - DC analog fixes - EDID retry fixes - UserQ fixes - RAS fixes - IP discovery fix - Add missing locking in amdgpu_ttm_access_memory_sdma() - Smart Power OLED fix - PRT and page fault fixes for GC 6-8 - VMID reservation fix - ACP platform device fix - Add missing vm fault handling for GC 11-12 - VPE fix amdkfd: - Partitioning fix Signed-off-by: Dave Airlie <airlied@redhat.com> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patch.msgid.link/20251202220101.2039347-1-alexander.deucher@amd.com
8 daysMerge tag 'drm-misc-next-2025-12-01-1' of ↵Dave Airlie
https://gitlab.freedesktop.org/drm/misc/kernel into drm-next Extra drm-misc-next for v6.19-rc1: UAPI Changes: - Add support for drm colorop pipeline. - Add COLOR PIPELINE plane property. - Add DRM_CLIENT_CAP_PLANE_COLOR_PIPELINE. Cross-subsystem Changes: - Attempt to use higher order mappings in system heap allocator. - Always taint kernel with sw-sync. Core Changes: - Small fixes to drm/gem. - Support emergency restore to drm-client. - Allocate and release fb_info in single place. - Rework ttm pipelined eviction fence handling. Driver Changes: - Support the drm color pipeline in vkms, amdgfx. - Add NVJPG driver for tegra. - Assorted small fixes and updates to rockchip, bridge/dw-hdmi-qp, panthor. - Add ASL CS5263 DP-to-HDMI simple bridge. - Add and improve support for G LD070WX3-SL01 MIPI DSI, Samsung LTL106AL0, Samsung LTL106AL01, Raystar RFF500F-AWH-DNN, Winstar WF70A8SYJHLNGA, Wanchanglong w552946aaa, Samsung SOFEF00, Lenovo X13s panel. - Add support for it66122 to it66121. - Support mali-G1 gpu in panthor. Signed-off-by: Dave Airlie <airlied@redhat.com> From: Maarten Lankhorst <maarten.lankhorst@linux.intel.com> Link: https://patch.msgid.link/aa5cbd50-7676-4a59-bbed-e8428af86804@linux.intel.com
14 daysdrm/amd/display: Enable support for Gamma 2.2Alex Hung
This patchset enables support for the Gamma 2.2. With this patch the following IGT subtests pass: kms_colorop --run plane-XR30-XR30-gamma_2_2 kms_colorop --run plane-XR30-XR30-gamma_2_2_inv-gamma_2_2 kms_colorop --run plane-XR30-XR30-gamma_2_2_inv-gamma_2_2-gamma_2_2_inv Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Simon Ser <contact@emersion.fr> Link: https://patch.msgid.link/20251115000237.3561250-52-alex.hung@amd.com
14 daysdrm/amd/display: Disable CRTC degamma when color pipeline is enabledAlex Hung
The degamma is to be handled by Color pipeline API. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Simon Ser <contact@emersion.fr> Link: https://patch.msgid.link/20251115000237.3561250-50-alex.hung@amd.com
14 daysdrm/amd/display: Ensure 3D LUT for color pipelineAlex Hung
Check dpp.hw_3d_lut before creating shaper tf/lut and 3dlut colorops in colorpipeline and handling these colorops. Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Simon Ser <contact@emersion.fr> Link: https://patch.msgid.link/20251115000237.3561250-49-alex.hung@amd.com
14 daysdrm/amd/display: Add AMD color pipeline docHarry Wentland
Add kernel doc for AMD color pipeline. Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Daniel Stone <daniels@collabora.com> Reviewed-by: Melissa Wen <mwen@igalia.com> Signed-off-by: Simon Ser <contact@emersion.fr> Link: https://patch.msgid.link/20251115000237.3561250-48-alex.hung@amd.com
14 daysdrm/amd/display: add 3D LUT coloropAlex Hung
This adds support for a 3D LUT. The color pipeline now consists of the following colorops: 1. 1D curve colorop 2. Multiplier 3. 3x4 CTM 4. 1D curve colorop 5. 1D LUT 6. 3D LUT 7. 1D curve colorop 8. 1D LUT Signed-off-by: Alex Hung <alex.hung@amd.com> Reviewed-by: Daniel Stone <daniels@collabora.com> Signed-off-by: Simon Ser <contact@emersion.fr> Link: https://patch.msgid.link/20251115000237.3561250-47-alex.hung@amd.com
14 daysdrm/colorop: allow non-bypass coloropsHarry Wentland
Not all HW will be able to do bypass on all color operations. Introduce an 32 bits 'flags' for all colorop init functions and DRM_COLOROP_FLAG_ALLOW_BYPASS for creating the BYPASS property when it's true. Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Daniel Stone <daniels@collabora.com> Reviewed-by: Simon Ser <contact@emersion.fr> Reviewed-by: Melissa Wen <mwen@igalia.com> Reviewed-by: Sebastian Wick <sebastian.wick@redhat.com> Signed-off-by: Simon Ser <contact@emersion.fr> Link: https://patch.msgid.link/20251115000237.3561250-45-alex.hung@amd.com
14 daysdrm/colorop: Define LUT_1D interpolationHarry Wentland
We want to make sure userspace is aware of the 1D LUT interpolation. While linear interpolation is common it might not be supported on all HW. Give driver implementers a way to specify their interpolation. Reviewed-by: Simon Ser <contact@emersion.fr> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Daniel Stone <daniels@collabora.com> Reviewed-by: Melissa Wen <mwen@igalia.com> Reviewed-by: Sebastian Wick <sebastian.wick@redhat.com> Signed-off-by: Simon Ser <contact@emersion.fr> Link: https://patch.msgid.link/20251115000237.3561250-44-alex.hung@amd.com
14 daysdrm/amd/display: Swap matrix and multiplierAlex Hung
Swap the order of matrix and multiplier as designed in hardware. Signed-off-by: Alex Hung <alex.hung@amd.com> Reviewed-by: Daniel Stone <daniels@collabora.com> Reviewed-by: Melissa Wen <mwen@igalia.com> Signed-off-by: Simon Ser <contact@emersion.fr> Link: https://patch.msgid.link/20251115000237.3561250-43-alex.hung@amd.com
14 daysdrm/amd/display: add multiplier coloropAlex Hung
This adds support for a multiplier. This multiplier is programmed via the HDR Multiplier in DCN. With this change the following IGT tests pass: kms_colorop --run plane-XR30-XR30-multiply_125 kms_colorop --run plane-XR30-XR30-multiply_inv_125 The color pipeline now consists of the following colorops: 1. 1D curve colorop 2. 3x4 CTM 3. Multiplier 4. 1D curve colorop 5. 1D LUT 6. 1D curve colorop 7. 1D LUT Signed-off-by: Alex Hung <alex.hung@amd.com> Reviewed-by: Daniel Stone <daniels@collabora.com> Reviewed-by: Melissa Wen <mwen@igalia.com> Signed-off-by: Simon Ser <contact@emersion.fr> Link: https://patch.msgid.link/20251115000237.3561250-42-alex.hung@amd.com
14 daysdrm/amd/display: add 3x4 matrix coloropAlex Hung
This adds support for a 3x4 color transformation matrix. With this change the following IGT tests pass: kms_colorop --run plane-XR30-XR30-ctm_3x4_50_desat kms_colorop --run plane-XR30-XR30-ctm_3x4_overdrive kms_colorop --run plane-XR30-XR30-ctm_3x4_oversaturate kms_colorop --run plane-XR30-XR30-ctm_3x4_bt709_enc kms_colorop --run plane-XR30-XR30-ctm_3x4_bt709_dec The color pipeline now consists of the following colorops: 1. 1D curve colorop 2. 3x4 CTM 3. 1D curve colorop 4. 1D LUT 5. 1D curve colorop 6. 1D LUT Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Daniel Stone <daniels@collabora.com> Reviewed-by: Melissa Wen <mwen@igalia.com> Signed-off-by: Simon Ser <contact@emersion.fr> Link: https://patch.msgid.link/20251115000237.3561250-40-alex.hung@amd.com
14 daysdrm/amd/display: add shaper and blend colorops for 1D Curve Custom LUTAlex Hung
This patch adds colorops for custom 1D LUTs in the SHAPER and BLND HW blocks. With this change the following IGT tests pass: kms_colorop --run plane-XR30-XR30-srgb_inv_eotf_lut kms_colorop --run plane-XR30-XR30-srgb_inv_eotf_lut-srgb_eotf_lut The color pipeline now consists of the following colorops: 1. 1D curve colorop 2. 1D curve colorop 3. 1D LUT 4. 1D curve colorop 5. 1D LUT The 1D curve colorops support sRGB, BT2020, and PQ scaled to 125.0. Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Daniel Stone <daniels@collabora.com> Signed-off-by: Simon Ser <contact@emersion.fr> Link: https://patch.msgid.link/20251115000237.3561250-39-alex.hung@amd.com
14 daysdrm/amd/display: Add support for BT.709 and BT.2020 TFsHarry Wentland
This adds support for the BT.709/BT.2020 transfer functions on all current 1D curve plane colorops, i.e., on DEGAM, SHAPER, and BLND blocks. With this change the following IGT subtests pass: kms_colorop --run plane-XR30-XR30-bt2020_inv_oetf kms_colorop --run plane-XR30-XR30-bt2020_oetf Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Daniel Stone <daniels@collabora.com> Signed-off-by: Simon Ser <contact@emersion.fr> Link: https://patch.msgid.link/20251115000237.3561250-35-alex.hung@amd.com
14 daysdrm/amd/display: Enable support for PQ 125 EOTF and InverseHarry Wentland
This patchset enables support for the PQ_125 EOTF and its inverse on all existing plane 1D curve colorops, i.e., on DEGAM, SHAPER, and BLND blocks. With this patchset the following IGT subtests are passing: kms_colorop --run plane-XR30-XR30-pq_125_eotf kms_colorop --run plane-XR30-XR30-pq_125_inv_eotf kms_colorop --run plane-XR30-XR30-pq_125_eotf-pq_125_inv_eotf kms_colorop --run plane-XR30-XR30-pq_125_eotf-pq_125_inv_eotf-pq_125_eotf Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Daniel Stone <daniels@collabora.com> Signed-off-by: Simon Ser <contact@emersion.fr> Link: https://patch.msgid.link/20251115000237.3561250-33-alex.hung@amd.com
14 daysdrm/amd/display: Add support for sRGB EOTF in BLND blockAlex Hung
Expose a 3rd 1D curve colorop, with support for DRM_COLOROP_1D_CURVE_SRGB_EOTF and program the BLND block to perform the sRGB transform when the colorop is not in bypass With this change the following IGT test passes: kms_colorop --run plane-XR30-XR30-srgb_eotf-srgb_inv_eotf-srgb_eotf The color pipeline now consists of the following colorops: 1. 1D curve colorop w/ sRGB EOTF support 2. 1D curve colorop w/ sRGB Inverse EOTF support 3. 1D curve colorop w/ sRGB EOTF support Signed-off-by: Alex Hung <alex.hung@amd.com> Co-developed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Daniel Stone <daniels@collabora.com> Signed-off-by: Simon Ser <contact@emersion.fr> Link: https://patch.msgid.link/20251115000237.3561250-31-alex.hung@amd.com
14 daysdrm/amd/display: Add support for sRGB Inverse EOTF in SHAPER blockAlex Hung
Expose a 2nd curve colorop with support for DRM_COLOROP_1D_CURVE_SRGB_INV_EOTF and program HW to perform the sRGB Inverse EOTF on the shaper block when the colorop is not in bypass. With this change the follow IGT tests pass: kms_colorop --run plane-XR30-XR30-srgb_inv_eotf kms_colorop --run plane-XR30-XR30-srgb_eotf-srgb_inv_eotf The color pipeline now consists of the following colorops: 1. 1D curve colorop w/ sRGB EOTF support 2. 1D curve colorop w/ sRGB Inverse EOTF support Signed-off-by: Alex Hung <alex.hung@amd.com> Co-developed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Daniel Stone <daniels@collabora.com> Signed-off-by: Simon Ser <contact@emersion.fr> Link: https://patch.msgid.link/20251115000237.3561250-30-alex.hung@amd.com
14 daysdrm/amd/display: Add support for sRGB EOTF in DEGAM blockAlex Hung
Expose one 1D curve colorop with support for DRM_COLOROP_1D_CURVE_SRGB_EOTF and program HW to perform the sRGB transform when the colorop is not in bypass. With this change the following IGT test passes: kms_colorop --run plane-XR30-XR30-srgb_eotf The color pipeline now consists of a single colorop: 1. 1D curve colorop w/ sRGB EOTF Signed-off-by: Alex Hung <alex.hung@amd.com> Co-developed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Daniel Stone <daniels@collabora.com> Signed-off-by: Simon Ser <contact@emersion.fr> Link: https://patch.msgid.link/20251115000237.3561250-29-alex.hung@amd.com
14 daysdrm/amd/display: Skip color pipeline initialization for cursor planeAlex Hung
cursor plane does not need to have color pipeline. Signed-off-by: Alex Hung <alex.hung@amd.com> Reviewed-by: Daniel Stone <daniels@collabora.com> Reviewed-by: Melissa Wen <mwen@igalia.com> Signed-off-by: Simon Ser <contact@emersion.fr> Link: https://patch.msgid.link/20251115000237.3561250-28-alex.hung@amd.com
14 daysdrm/amd/display: Add bypass COLOR PIPELINEHarry Wentland
Add the default Bypass pipeline and ensure it passes the kms_colorop test plane-XR30-XR30-bypass. Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Daniel Stone <daniels@collabora.com> Signed-off-by: Simon Ser <contact@emersion.fr> Link: https://patch.msgid.link/20251115000237.3561250-27-alex.hung@amd.com
14 daysdrm/amd/display: Ignore deprecated props when plane_color_pipeline setHarry Wentland
When the plane_color_pipeline bit is set we should ignore deprecated properties, such as COLOR_RANGE and COLOR_ENCODING. Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Daniel Stone <daniels@collabora.com> Reviewed-by: Melissa Wen <mwen@igalia.com> Signed-off-by: Simon Ser <contact@emersion.fr> Link: https://patch.msgid.link/20251115000237.3561250-26-alex.hung@amd.com
2025-11-26drm/amd/display: Increase EDID read retriesMario Limonciello (AMD)
[WHY] When monitor is still booting EDID read can fail while DPCD read is successful. In this case no EDID data will be returned, and this could happen for a while. [HOW] Increase number of attempts to read EDID in dm_helpers_read_local_edid() to 25. Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4672 Cc: Mario Limonciello <mario.limonciello@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org> Signed-off-by: Alex Hung <alex.hung@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-11-26drm/amd/display: Fix dereference-before-check for dc_linkSrinivasan Shanmugam
The function dereferences amdgpu_dm_connector->dc_link early to initialize verified_link_cap and dc, but later still checks amdgpu_dm_connector->dc_link for NULL in the analog path. This late NULL check is redundant, introduce a local dc_link pointer, use it consistently, and drop the superfluous NULL check while using dc_link->link_id.id instead. The function uses dc_link at the very beginning without checking if it is NULL. But later in the code, it suddenly checks if dc_link is NULL. This check is too late to be useful, because the code has already used dc_link earlier. So this NULL check does nothing. We simplify the code by storing amdgpu_dm_connector->dc_link in a local dc_link variable and using it throughout the function. Since dc_link is already dereferenced early, the later NULL check is unnecessary and is removed. Fixes the below: amdgpu_dm_connector_get_modes(): variable dereferenced before check 'amdgpu_dm_connector->dc_link' drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm.c 8845 &amdgpu_dm_connector->dc_link->verified_link_cap; 8846 const struct dc *dc = amdgpu_dm_connector->dc_link->dc; ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Dereference ... 8856 8857 if (amdgpu_dm_connector->dc_sink && 8858 amdgpu_dm_connector->dc_link && ^^^^^^^^^^^^^^^^^^^^^^^^^^^^ Checked too late. Presumably this NULL check could be removed? ... Fixes: d46e422f65ae ("drm/amd/display: Cleanup uses of the analog flag") Reported by: Dan Carpenter <dan.carpenter@linaro.org> Cc: Timur Kristóf <timur.kristof@gmail.com> Cc: Aurabindo Pillai <aurabindo.pillai@amd.com> Cc: Roman Li <roman.li@amd.com> Cc: Harry Wentland <harry.wentland@amd.com> Cc: Tom Chung <chiahsuan.chung@amd.com> Cc: Alex Hung <alex.hung@amd.com> Cc: Ivan Lipski <ivan.lipski@amd.com> Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com> Reviewed-by: Timur Kristóf <timur.kristof@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-11-26drm/amd/display: Don't change brightness for disabled connectorsMario Limonciello (AMD)
[WHY] When a laptop lid is closed the connector is disabled but userspace can still try to change brightness. This doesn't work because the panel is turned off. It will eventually time out, but there is a lot of stutter along the way. [How] Iterate all connectors to check whether the matching one for the backlight index is enabled. Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4675 Cc: Mario Limonciello <mario.limonciello@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Ray Wu <ray.wu@amd.com> Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-11-18drm/amd/display: Cleanup uses of the analog flagTimur Kristóf
In the detect_link_and_local_sink() function, do not modify the EDID capabilities of the display based on the connector. Instead, respect the analog flag better and when the analog flag is set, check that the connector indeed supports analog displays. Suggested-by: Ray Wu <Ray.Wu@amd.com> Signed-off-by: Timur Kristóf <timur.kristof@gmail.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Link: https://lore.kernel.org/r/20251113163348.137315-3-timur.kristof@gmail.com Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-11-18drm/amd/display: Fix pbn to kbps ConversionFangzhi Zuo
[Why] Existing routine has two conversion sequence, pbn_to_kbps and kbps_to_pbn with margin. Non of those has without-margin calculation. kbps_to_pbn with margin conversion includes fec overhead which has already been included in pbn_div calculation with 0.994 factor considered. It is a double counted fec overhead factor that causes potential bw loss. [How] Add without-margin calculation. Fix fec overhead double counted issue. Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3735 Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com> Signed-off-by: Ivan Lipski <ivan.lipski@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-11-18drm/amd/display: Add an HPD filter for HDMIIvan Lipski
[Why] Some monitors perform rapid “autoscan” HPD re‑assertions right after a disconnect or powersaving mode enablement. These appear as a quick disconnect→reconnect with an identical EDID. Since Linux has no HDMI hotplug detection (HPD) filter, these quick reconnects are seen as hotplug events, which can unintentionally wake a system with DPMS off. An example: https://gitlab.freedesktop.org/drm/amd/-/issues/2876 Such 'fake reconnects' are considered when the interval between a disconnect and a connect is within 1500ms (experimentally chosen using several monitors), and the two connections have the same EDID. [How] Implement a time-based debounce mechanism: 1. On HDMI disconnect detection, instead of immediately processing the HPD event, save the current sink and schedule delayed work (default 1500ms) 2. If another HDMI disconnect HPD event arrives during the debounce period, it reschedules the pending work, ensuring only the final state is processed. 3. When the debounce timer expires, re-detect the display and compare the new sink with the cached one using EDID comparison. 4. If sinks match (same EDID), this was a spontaneous HPD toggle: - Update connector state internally - Skip hotplug event to prevent desktop rearrangement If sinks differ, this was a real display change: - Process normally with the hotplug event The debounce delay is configurable via module parameter 'hdmi_hpd_debounce_delay_ms'. Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/2876 Reviewed-by: Sun peng (Leo) Li <sunpeng.li@amd.com> Signed-off-by: Ivan Lipski <ivan.lipski@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-11-11drm/amd/display: Fix annotations for connector poll/detect parametersSrinivasan Shanmugam
Adds the missing @aconnector, @connector, and @force descriptions: @aconnector – This is the DM (Display Manager) connector. It gives access to the DRM connector, the DC link, and hotplug/poll state. The code uses it to check the link, update the sink, and manage connector state changes. @connector – This is the main DRM connector given by the DRM core. Inside the detect function, it is converted to amdgpu_dm_connector so we can run DC link detection, either light or full. @force – This flag tells the function whether to run a full detect again. If false, we avoid heavy DAC load detect steps to prevent flicker. If true, we force a re-detect even when we normally skip it. Fixes the below with gcc W=1: function param 'aconnector' not described in 'amdgpu_dm_connector_poll' function param 'force' not described in 'amdgpu_dm_connector_poll' function param 'connector' not described in 'amdgpu_dm_connector_detect' function param 'force' not described in 'amdgpu_dm_connector_detect' Cc: Aurabindo Pillai <aurabindo.pillai@amd.com> Cc: Roman Li <roman.li@amd.com> Cc: Harry Wentland <harry.wentland@amd.com> Cc: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Srinivasan Shanmugam <srinivasan.shanmugam@amd.com> Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-11-11drm/amd/display: To support Replay frame skip modeChuntao Tso
[Why & How] The change is to optimize the Replay power saving by reducing the refresh rate with frame skipping mode Reviewed-by: Robin Chen <robin.chen@amd.com> Signed-off-by: Chuntao Tso <chunttso@amd.com> Signed-off-by: Fangzhi Zuo <jerry.zuo@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-11-06drm/amd/display: Enable mst when it's detected but yet to be initializedWayne Lin
[Why] drm_dp_mst_topology_queue_probe() is used under the assumption that mst is already initialized. If we connect system with SST first then switch to the mst branch during suspend, we will fail probing topology by calling the wrong API since the mst manager is yet to be initialized. [How] At dm_resume(), once it's detected as mst branc connected, check if the mst is initialized already. If not, call dm_helpers_dp_mst_start_top_mgr() instead to initialize mst V2: Adjust the commit msg a bit Fixes: bc068194f548 ("drm/amd/display: Don't write DP_MSTM_CTRL after LT") Cc: Fangzhi Zuo <jerry.zuo@amd.com> Cc: Mario Limonciello <mario.limonciello@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Reviewed-by: Tom Chung <chiahsuan.chung@amd.com> Signed-off-by: Wayne Lin <Wayne.Lin@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-11-04drm/amd/display: Fix NULL deref in debugfs odm_combine_segmentsRong Zhang
When a connector is connected but inactive (e.g., disabled by desktop environments), pipe_ctx->stream_res.tg will be destroyed. Then, reading odm_combine_segments causes kernel NULL pointer dereference. BUG: kernel NULL pointer dereference, address: 0000000000000000 #PF: supervisor read access in kernel mode #PF: error_code(0x0000) - not-present page PGD 0 P4D 0 Oops: Oops: 0000 [#1] SMP NOPTI CPU: 16 UID: 0 PID: 26474 Comm: cat Not tainted 6.17.0+ #2 PREEMPT(lazy) e6a17af9ee6db7c63e9d90dbe5b28ccab67520c6 Hardware name: LENOVO 21Q4/LNVNB161216, BIOS PXCN25WW 03/27/2025 RIP: 0010:odm_combine_segments_show+0x93/0xf0 [amdgpu] Code: 41 83 b8 b0 00 00 00 01 75 6e 48 98 ba a1 ff ff ff 48 c1 e0 0c 48 8d 8c 07 d8 02 00 00 48 85 c9 74 2d 48 8b bc 07 f0 08 00 00 <48> 8b 07 48 8b 80 08 02 00> RSP: 0018:ffffd1bf4b953c58 EFLAGS: 00010286 RAX: 0000000000005000 RBX: ffff8e35976b02d0 RCX: ffff8e3aeed052d8 RDX: 00000000ffffffa1 RSI: ffff8e35a3120800 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff8e3580eb0000 R09: ffff8e35976b02d0 R10: ffffd1bf4b953c78 R11: 0000000000000000 R12: ffffd1bf4b953d08 R13: 0000000000040000 R14: 0000000000000001 R15: 0000000000000001 FS: 00007f44d3f9f740(0000) GS:ffff8e3caa47f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000006485c2000 CR4: 0000000000f50ef0 PKRU: 55555554 Call Trace: <TASK> seq_read_iter+0x125/0x490 ? __alloc_frozen_pages_noprof+0x18f/0x350 seq_read+0x12c/0x170 full_proxy_read+0x51/0x80 vfs_read+0xbc/0x390 ? __handle_mm_fault+0xa46/0xef0 ? do_syscall_64+0x71/0x900 ksys_read+0x73/0xf0 do_syscall_64+0x71/0x900 ? count_memcg_events+0xc2/0x190 ? handle_mm_fault+0x1d7/0x2d0 ? do_user_addr_fault+0x21a/0x690 ? exc_page_fault+0x7e/0x1a0 entry_SYSCALL_64_after_hwframe+0x6c/0x74 RIP: 0033:0x7f44d4031687 Code: 48 89 fa 4c 89 df e8 58 b3 00 00 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 1a 5b c3 0f 1f 84 00 00 00 00 00 48 8b 44 24 10 0f 05 <5b> c3 0f 1f 80 00 00 00 00> RSP: 002b:00007ffdb4b5f0b0 EFLAGS: 00000202 ORIG_RAX: 0000000000000000 RAX: ffffffffffffffda RBX: 00007f44d3f9f740 RCX: 00007f44d4031687 RDX: 0000000000040000 RSI: 00007f44d3f5e000 RDI: 0000000000000003 RBP: 0000000000040000 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000202 R12: 00007f44d3f5e000 R13: 0000000000000003 R14: 0000000000000000 R15: 0000000000040000 </TASK> Modules linked in: tls tcp_diag inet_diag xt_mark ccm snd_hrtimer snd_seq_dummy snd_seq_midi snd_seq_oss snd_seq_midi_event snd_rawmidi snd_seq snd_seq_device x> snd_hda_codec_atihdmi snd_hda_codec_realtek_lib lenovo_wmi_helpers think_lmi snd_hda_codec_generic snd_hda_codec_hdmi snd_soc_core kvm snd_compress uvcvideo sn> platform_profile joydev amd_pmc mousedev mac_hid sch_fq_codel uinput i2c_dev parport_pc ppdev lp parport nvme_fabrics loop nfnetlink ip_tables x_tables dm_cryp> CR2: 0000000000000000 ---[ end trace 0000000000000000 ]--- RIP: 0010:odm_combine_segments_show+0x93/0xf0 [amdgpu] Code: 41 83 b8 b0 00 00 00 01 75 6e 48 98 ba a1 ff ff ff 48 c1 e0 0c 48 8d 8c 07 d8 02 00 00 48 85 c9 74 2d 48 8b bc 07 f0 08 00 00 <48> 8b 07 48 8b 80 08 02 00> RSP: 0018:ffffd1bf4b953c58 EFLAGS: 00010286 RAX: 0000000000005000 RBX: ffff8e35976b02d0 RCX: ffff8e3aeed052d8 RDX: 00000000ffffffa1 RSI: ffff8e35a3120800 RDI: 0000000000000000 RBP: 0000000000000000 R08: ffff8e3580eb0000 R09: ffff8e35976b02d0 R10: ffffd1bf4b953c78 R11: 0000000000000000 R12: ffffd1bf4b953d08 R13: 0000000000040000 R14: 0000000000000001 R15: 0000000000000001 FS: 00007f44d3f9f740(0000) GS:ffff8e3caa47f000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 00000006485c2000 CR4: 0000000000f50ef0 PKRU: 55555554 Fix this by checking pipe_ctx->stream_res.tg before dereferencing. Fixes: 07926ba8a44f ("drm/amd/display: Add debugfs interface for ODM combine info") Signed-off-by: Rong Zhang <i@rong.moe> Reviewed-by: Mario Limoncello <mario.limonciello@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-11-04drm/amd/display: fw locality check refactorsWenjing Liu
[why] There are some new changes for HDCP2 firmware locality check. The implementation doesn't perfectly fit the intended design and clarity. 1. Clarify and consolidate variable responsibilities. The previous implementation introduced the following variables: - config.ddc.funcs.atomic_write_poll_read_i2c (optional pointer) - hdcp->config.ddc.funcs.atomic_write_poll_read_aux (optional pointer) - hdcp->connection.link.adjust.hdcp2.force_sw_locality_check (bool) - hdcp->config.debug.lc_enable_sw_fallback (bool) - use_fw (bool) They will be used together to determine two operations: - Whether to use FW locality check - Whether to use SW fallback on FW locality check failure The refactor streamlines this by introducing two variables in the hdcp2 link adjustment, while ensuring function pointers are always assigned and remain independent from policy decisions: - use_fw_locality_check (bool) -> true if fw locality should be used. - use_sw_locality_fallback (bool) -> true to reset use_fw_locality_check back to false and retry on fw locality check failure. 2. Mixed meanings of l_prime_read transition input l_prime_read originally means if l_prime is read when sw locality check is used. When FW locality check is used, l_prime_read means if lc init write, l prime poll and l_prime read combo operation is successful. The mix of meanings is confusing. The refactor introduces a new variable l_prime_combo_read to isolate the second meaning into its own variable. 3. Missing specific error code on firmware locality error. The original change reuses the generic DDC failure error code when firmware fails to return locality check result. This is not ideal as DDC failure indicates an error occurred during an I2C/AUX transaction. FW locality failure could be caused by polling timeout in firmware or failure to acquire firmware access. Which sits at a higher level of abstraction above DDC hardware. An incorrect error code could mislead the debug into a wrong direction. 4. Correcting misplaced comments. The previous implementation of the firmware locality check resulted in some comments in hdcp2_transition being incorrectly positioned. This refactor relocates those comments to their appropriate locations for better clarity. Reviewed-by: Aric Cyr <aric.cyr@amd.com> Signed-off-by: Wenjing Liu <wenjing.liu@amd.com> Signed-off-by: Ray Wu <ray.wu@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-11-04drm/amd/display: Don't stretch non-native images by default in eDPMario Limonciello (AMD)
commit 978fa2f6d0b12 ("drm/amd/display: Use scaling for non-native resolutions on eDP") started using the GPU scaler hardware to scale when a non-native resolution was picked on eDP. This scaling was done to fill the screen instead of maintain aspect ratio. The idea was supposed to be that if a different scaling behavior is preferred then the compositor would request it. The not following aspect ratio behavior however isn't desirable, so adjust it to follow aspect ratio and still try to fill screen. Note: This will lead to black bars in some cases for non-native resolutions. Compositors can request the previous behavior if desired. Fixes: 978fa2f6d0b1 ("drm/amd/display: Use scaling for non-native resolutions on eDP") Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/4538 Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org> Acked-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-11-04drm/amd/display: remove unneeded semicolonJiapeng Chong
No functional modification involved. ./drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c:7392:3-4: Unneeded semicolon. Reported-by: Abaci Robot <abaci@linux.alibaba.com> Closes: https://bugzilla.openanolis.cn/show_bug.cgi?id=26821 Signed-off-by: Jiapeng Chong <jiapeng.chong@linux.alibaba.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-11-04drm/amd/display: Fix null pointer on analog detectionHarry Wentland
Check if we have an amdgpu_dm_connector->dc_sink first before adding common modes for analog outputs. If we don't have a sink yet we can safely skip this. Fixes: 70181ad96ec2 ("drm/amd/display: Add common modes to analog displays without EDID") Signed-off-by: Harry Wentland <harry.wentland@amd.com> Reviewed-by: Timur Kristóf <timur.kristof@gmail.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-31Merge tag 'amd-drm-next-6.19-2025-10-29' of ↵Simona Vetter
https://gitlab.freedesktop.org/agd5f/linux into drm-next amd-drm-next-6.19-2025-10-29: amdgpu: - VPE idle handler fix - Re-enable DM idle optimizations - DCN3.0 fix - SMU fix - Powerplay fixes for fiji/iceland - License copy-pasta fixes - HDP eDP panel fix - Vblank fix - RAS fixes - SR-IOV updates - SMU 13 VCN reset fix - DMUB fixes - DC frame limit fix - Additional DC underflow logging - DCN 3.1.5 fixes - DC Analog encoders support - Enable DC on bonaire by default - UserQ fixes - Remove redundant pm_runtime_mark_last_busy() calls amdkfd: - Process cleanup fix - Misc fixes radeon: - devm migration fixes - Remove redundant pm_runtime_mark_last_busy() calls UAPI - Add ABM KMS property Proposed kwin changes: https://invent.kde.org/plasma/kwin/-/merge_requests/6028 Signed-off-by: Simona Vetter <simona.vetter@ffwll.ch> From: Alex Deucher <alexander.deucher@amd.com> Link: https://patch.msgid.link/20251029205713.9480-1-alexander.deucher@amd.com
2025-10-31Merge tag 'amd-drm-next-6.19-2025-10-24' of ↵Simona Vetter
https://gitlab.freedesktop.org/agd5f/linux into drm-next amd-drm-next-6.19-2025-10-24: amdgpu: - HMM cleanup - Add new RAS framework - DML2.1 updates - YCbCr420 fixes - DC FP fixes - DMUB fixes - LTTPR fixes - DTBCLK fixes - DMU cursor offload handling - Userq validation improvements - Misc code cleanups - Unify shutdown callback handling - Suspend improvements - Power limit code cleanup - Fence cleanup - IP Discovery cleanup - SR-IOV fixes - AUX backlight fixes - DCN 3.5 fixes - HDMI compliance fixes - DCN 4.0.1 cursor updates - DCN interrupt fix - DC KMS full update improvements - Add additional HDCP traces - DCN 3.2 fixes - DP MST fixes - Add support for new SR-IOV mailbox interface Signed-off-by: Simona Vetter <simona.vetter@ffwll.ch> From: Alex Deucher <alexander.deucher@amd.com> Link: https://lore.kernel.org/r/20251024175249.58099-1-alexander.deucher@amd.com
2025-10-28drm/amd/display: Don't add freesync modes to analog displays (v2)Timur Kristóf
VRR is not supported on analog signals. Don't add freesync modes to analog displays or when VRR is unsupported by DC. Signed-off-by: Timur Kristóf <timur.kristof@gmail.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-28drm/amd/display: Add common modes to analog displays without EDIDTimur Kristóf
When the EDID of an analog display is not available, we can't know the possible modes supported by the display. However, we still need to offer the user to select from a variety of common modes. It will be up to the user to select the best one, though. This is how it works on other operating systems as well as the legacy display code path in amdgpu. Signed-off-by: Timur Kristóf <timur.kristof@gmail.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-28drm/amd/display: Use DAC load detection on analog connectors (v2)Timur Kristóf
This feature is useful for analog connections without EDID: - Really old monitors with a VGA connector - Cheap DVI/VGA adapters that don't connect DDC pins When a connection is established through DAC load detection, the driver is supposed to fill in the supported modes for the display, which we already do in amdgpu_dm_connector_get_modes. Also, because the load detection causes visible glitches, do not attempt to poll the connector again after it was detected this way. Note that it will still be polled after sleep/resume or when force is enabled, which is okay. v2: Add dc_connection_dac_load connection type. Properly release sink when no display is connected. Don't print error when EDID isn't read from an analog display. Signed-off-by: Timur Kristóf <timur.kristof@gmail.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-28drm/amd/display: Poll analog connectors (v3)Timur Kristóf
VGA connectors don't support any hotplug detection, so the kernel needs to periodically poll them to see if a display is connected. DVI-I connectors have hotplug detection for digital signals, and some analog DVI cables pull up that pin to work with that. However, in general not all DVI cables do this so we can't rely on this feature, therefore we need to poll DVI-I connectors as well. v2: Call drm_kms_helper_poll_fini in amdgpu_dm_hpd_fini. Disable/enable polling on suspend/resume. Don't call full link detection when already connected. v3: Encounter CLANG build failure. Remove unused variable: drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_irq.c:980:7: error: variable 'use_polling' set but not used [-Werror,-Wunused-but- set-variable] 980 | bool use_polling = false; Signed-off-by: Timur Kristóf <timur.kristof@gmail.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-28drm/amd/display: Refactor amdgpu_dm_connector_detect (v2)Timur Kristóf
Prepare for polling analog connectors. Document the function better. Signed-off-by: Timur Kristóf <timur.kristof@gmail.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-28drm/amd/display: Don't try to enable/disable HPD when unavailableTimur Kristóf
VGA connectors don't have HPD (hotplug detection), so don't touch any HPD related registers for VGA. Determine whether hotplug detection is available by checking that the interrupt source is invalid. Signed-off-by: Timur Kristóf <timur.kristof@gmail.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-28drm/amd/display: Add analog bit to edid_caps (v2)Timur Kristóf
The new analog bit will be used with DVI-I connectors. DVI-I connectors can connect to both digital and analog monitors and this bit will help distinguish between those. v2: Sanitize analog bit based on connector type. Signed-off-by: Timur Kristóf <timur.kristof@gmail.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-28drm/amd/display: Determine DVI-I connector type (v2)Timur Kristóf
DC determines the DRM connector type based on the signal type, which becomes problematic when a connector may support different signal types, such as DVI-I. With this patch, it is now determined according to the actual connector type for DVI-D and DVI-I connectors. Also set the HPD (hotplug detection) flag for DVI-I connectors to prevent regressing their digital functionality, which has been already working. A subsequent commit will also implement polling for DVI-I. v2: Only use connector type for DVI to prevent regressions for other signal types. Signed-off-by: Timur Kristóf <timur.kristof@gmail.com> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-28drm/amd/display: Fix incorrect return of vblank enable on unconfigured crtcIvan Lipski
[Why&How] Return -EINVAL when userspace asks us to enable vblank on a crtc that is not yet enabled. Suggested-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/1856 Signed-off-by: Ivan Lipski <ivan.lipski@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-28drm/amd/display: Add HDR workaround for a specific eDPAlex Hung
[WHY & HOW] Some eDP panels suffer from flicking when HDR is enabled in KDE or Gnome. This add another quirk to worksaround to skip VSC that is incompatible with an eDP panel. Link: https://gitlab.freedesktop.org/drm/amd/-/issues/4452 Reviewed-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Wayne Lin <wayne.lin@amd.com> Tested-by: Dan Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-28drm/amd: Re-introduce property to control adaptive backlight modulationMario Limonciello
commit 0887054d14ae ("drm/amd: Drop abm_level property") dropped the abm level property in favor of sysfs control. Since then there have been discussions that compositors showed an interest in modifying a vendor specific property instead. So re-introduce the abm level property, but with different semantics. Rather than being an integer it's now an enum. One of the enum options is 'sysfs', and that is because there is still a sysfs file for use by userspace when the compositor doesn't support this property. If usespace has not modified this property, the default value will be for sysfs to control it. Once userspace has set the property stop allowing sysfs control. The property is only attached to non-OLED eDP panels. Cc: Xaver Hugl <xaver.hugl@kde.org> Reviewed-by: Harry Wentland <harry.wentland@amd.com> Signed-off-by: Mario Limonciello <mario.limonciello@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-28drm/amd/display: pause the workload setting in dmKenneth Feng
v1: Pause the workload setting in dm when doinn idle optimization v2: Rebase patch to latest kernel code base (kernel 6.16) Reviewed-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Kenneth Feng <kenneth.feng@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com> Signed-off-by: Yang Wang <kevinyang.wang@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2025-10-24Merge tag 'drm-misc-next-2025-10-21' of ↵Simona Vetter
https://gitlab.freedesktop.org/drm/misc/kernel into drm-next drm-misc-next for v6.19: UAPI Changes: amdxdna: - Support reading last hardware error Cross-subsystem Changes: dma-buf: - heaps: Create heap per CMA reserved location; Improve user-space documentation Core Changes: atomic: - Clean up and improve state-handling interfaces, update drivers bridge: - Improve ref counting buddy: - Optimize block management Driver Changes: amdxdna: - Fix runtime power management - Support firmware debug output ast: - Set quirks for each chip model atmel-hlcdc: - Set LCDC_ATTRE register in plane disable - Set correct values for plane scaler bochs: - Use vblank timer bridge: - synopsis: Support CEC; Init timer with correct frequency cirrus-qemu: - Use vblank timer imx: - Clean up ivu: - Update JSM API to 3.33.0 - Reset engine on more job errors - Return correct error codes for jobs komeda: - Use drm_ logging functions panel: - edp: Support AUO B116XAN02.0 panfrost: - Embed struct drm_driver in Panfrost device - Improve error handling - Clean up job handling panthor: - Support custom ASN_HASH for mt8196 renesas: - rz-du: Fix dependencies rockchip: - dsi: Add support for RK3368 - Fix LUT size for RK3386 sitronix: - Fix output position when clearing screens qaic: - Support dma-buf exports - Support new firmware's READ_DATA implementation - Replace kcalloc with memdup - Replace snprintf() with sysfs_emit() - Avoid overflows in arithmetics - Clean up - Fixes qxl: - Use vblank timer rockchip: - Clean up mode-setting code vgem: - Fix fence timer deadlock virtgpu: - Use vblank timer Signed-off-by: Simona Vetter <simona.vetter@ffwll.ch> From: Thomas Zimmermann <tzimmermann@suse.de> Link: https://lore.kernel.org/r/20251021111837.GA40643@linux.fritz.box