kernel/linux.git/drivers/gpu/drm/amd/amdgpu/amdgpu_mode.h, branch v6.19.11

drm/amdgpu: Fix kernel-doc comments for some LUT properties

2026-03-19T15:14:49+00:00

[ Upstream commit 52289ce48ef1f8a81cd39df1574098356e3c9d4c ] The following members of struct amdgpu_mode_info do not have valid references in the related kernel-doc sections: - plane_shaper_lut_property - plane_shaper_lut_size_property, - plane_lut3d_size_property Correct all affected comment blocks. Fixes: f545d82479b4 ("drm/amd/display: add plane shaper LUT and TF driver-specific properties") Fixes: 671994e3bf33 ("drm/amd/display: add plane 3D LUT driver-specific properties") Reviewed-by: Melissa Wen Signed-off-by: Cristian Ciocaltea Signed-off-by: Alex Deucher (cherry picked from commit ec5708d6e547f7efe2f009073bfa98dbc4c5c2ac) Signed-off-by: Sasha Levin

drm/amd: Re-introduce property to control adaptive backlight modulation

2025-10-28T13:56:14+00:00

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 Reviewed-by: Harry Wentland Signed-off-by: Mario Limonciello Signed-off-by: Alex Deucher

drm/amd/pm: Remove wm_low and wm_high fields from amdgpu_crtc (v2)

2025-09-02T19:57:01+00:00

These fields were only used by si_dpm and are not necessary anymore. They also may have been incorrect because: - wm_high was set to the LOW_WATERMARK field of watermark A. - wm_low was not set on DCE 6 and was always zero. Reviewed-by: Alex Deucher Signed-off-by: Timur Kristóf Signed-off-by: Alex Deucher

drm/amd/display/dm: handle OEM i2c buses in i2c functions

2025-02-13T02:02:54+00:00

Allow the creation of an OEM i2c bus and use the proper DC helpers for that case. Reviewed-by: Harry Wentland Signed-off-by: Alex Deucher

drm/amdgpu: convert bios_hardcoded_edid to drm_edid

2024-07-27T21:35:05+00:00

Instead of manually passing around 'struct edid *' and its size, use 'struct drm_edid', which encapsulates a validated combination of both. As the drm_edid_ can handle NULL gracefully, the explicit checks can be dropped. Also save a few characters by transforming '&array[0]' to the equivalent 'array' and using 'max_t(int, ...)' instead of manual casts. Signed-off-by: Thomas Weißschuh Signed-off-by: Alex Deucher

drm/amdgpu: add amdgpu_framebuffer::gfx12_dcc

2024-07-01T20:10:47+00:00

amdgpu_framebuffer doesn't have tiling_flags, so we need this. amdgpu_display_get_fb_info never gets NULL parameters, so checking for NULL was useless. Signed-off-by: Marek Olšák Acked-by: Alex Deucher Signed-off-by: Alex Deucher

drm/amd: Drop abm_level property

2024-02-27T15:46:59+00:00

This vendor specific property has never been used by userspace software and conflicts with the panel_power_savings sysfs file. That is a compositor and user could fight over the same data. Fixes: 63d0b87213a0 ("drm/amd/display: add panel_power_savings sysfs entry to eDP connectors") Suggested-by: Harry Wentland Cc: Hamza Mahfooz Cc: "Sun peng Li (Leo)" Reviewed-by: Harry Wentland Acked-by: Christian König Signed-off-by: Mario Limonciello Signed-off-by: Alex Deucher

drm/amd/display: add plane CTM driver-specific property

2023-12-14T20:26:15+00:00

Plane CTM for pre-blending color space conversion. Only enable driver-specific plane CTM property on drivers that support both pre- and post-blending gamut remap matrix, i.e., DCN3+ family. Otherwise it conflits with DRM CRTC CTM property. Reviewed-by: Harry Wentland Signed-off-by: Melissa Wen Signed-off-by: Alex Deucher

drm/amd: include drm/drm_edid.h only where needed

2023-12-13T21:08:01+00:00

Including drm_edid.h from amdgpu_mode.h causes the rebuild of literally hundreds of files when drm_edid.h is modified, while there are only a handful of files that actually need to include drm_edid.h. Signed-off-by: Jani Nikula Signed-off-by: Alex Deucher

drm/amd/display: add CRTC gamma TF driver-specific property

2023-12-13T21:08:01+00:00

Add AMD pre-defined transfer function property to default DRM CRTC gamma to convert to wire encoding with or without a user gamma LUT. There is no post-blending regamma ROM for pre-defined TF. When setting Gamma TF (!= Identity) and LUT at the same time, the color module will combine the pre-defined TF and the custom LUT values into the LUT that's actually programmed. v2: - enable CRTC prop in the end of driver-specific prop sequence - define inverse EOTFs as supported regamma TFs - reword driver-specific function doc to remove shaper/3D LUT v3: - spell out TF+LUT behavior in the commit and comments (Harry) Reviewed-by: Harry Wentland Co-developed-by: Joshua Ashton Signed-off-by: Joshua Ashton Signed-off-by: Melissa Wen Signed-off-by: Alex Deucher