kernel/linux.git/drivers/gpu/drm/amd/display/include, branch v7.2-rc1

drm/amd/display: Fix DCN42B version detection

2026-06-04T19:24:15+00:00

In resource_parse_asic_id, the check for GC_11_0_4 was unbounded, which caused it to override the detection of DCN42B. Signed-off-by: Matthew Stewart Reviewed-by: Roman Li Signed-off-by: Alex Deucher

drm/amd/display: Add HDMI FRL definitions to includes

2026-06-03T17:44:21+00:00

This patch adds all relevant includes in DC that are used by the HDMI FRL implementation in DC. Signed-off-by: Harry Wentland Reviewed-by: Fangzhi Zuo Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add DCN42B code to DC

2026-06-03T17:44:02+00:00

[Why & How] Add DCN42B code to DC Reviewed-by: Harry Wentland Signed-off-by: Matthew Stewart Signed-off-by: Ray Wu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add no_native_i2c codepath

2026-06-03T17:43:29+00:00

[Why] ASICs which do not have native DDC capability must use a different codepath to access the AUX channel. [How] - BIOS cap NO_DDC_PIN is set to 1 for links which do not have the DDC pin. - dp_connector_no_native_i2c in dc_config must also be set to true to use this codepath. Reviewed-by: Harry Wentland Signed-off-by: Matthew Stewart Signed-off-by: Ray Wu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Delete disp_clk_voltage from integrated info (v2)

2026-05-27T14:44:58+00:00

Only DCE 11.0 relies on this information and even that didn't use this field, because it queries the information from the pplib. It also filled the field incorrectly on that version. On newer GPUs, the VIOS integrated info no longer contains display clock voltage dependencies, so we don't need it. v2: - Also delete some code wrapped in #if 0 Acked-by: Christian König Signed-off-by: Timur Kristóf Reviewed-by: Melissa Wen Signed-off-by: Alex Deucher

drm/amd/display: Fix warnings

2026-05-11T20:10:34+00:00

[Why & How] Fix various warnings related to unsigned/signed mismatches - Consistently use the same signedness for a given value - Explcitly cast between types when needed Reviewed-by: Dillon Varone Signed-off-by: Clay King Signed-off-by: James Lin Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Read EDID from VBIOS embedded panel info

2026-04-29T14:41:40+00:00

Some board manufacturers hardcode the EDID for the embedded panel in the VBIOS. This EDID should be used when the panel doesn't have a DDC. For reference, see the legacy non-DC display code: amdgpu_atombios_encoder_get_lcd_info() This is necessary to support embedded connectors without DDC. Fixes: 4562236b3bc0 ("drm/amd/dc: Add dc display driver (v2)") Link: https://gitlab.freedesktop.org/drm/amd/-/work_items/5192 Signed-off-by: Timur Kristóf Signed-off-by: Alex Deucher (cherry picked from commit eb105e63b474c11ef6a84a1c6b18100d851ff364)

drm/amd/display: Adjust freesync pcon whitelist

2026-04-17T19:20:49+00:00

Add more freesync supported pcon ID into the whitelist. Reviewed-by: Harry Wentland Signed-off-by: Wayne Lin Signed-off-by: Roman Li Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add ESD detection for replay recovery

2026-03-11T14:56:00+00:00

[HOW] Add Replay recovery flow so that when HPD occurs and ESD is detected, Replay can restore the system back to normal. Reviewed-by: Wenjing Liu Reviewed-by: Robin Chen Reviewed-by: Aric Cyr Signed-off-by: Weiguang Li Signed-off-by: Alex Hung Tested-by: Dan Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Implement BIOS parser external encoder control

2026-02-23T19:28:32+00:00

The VBIOS has a function called ExternalEncoderControl which controls the DP bridge encoders that some GPUs use for analog and LVDS output. Fixup this old functionality. For reference, see the legacy non-DC amdgpu display code: amdgpu_atombios_encoder_setup_external_encoder() - Set same parameters for the ENABLE action as the SETUP action - Add missing enum values for DDC setup and DAC load detection - Fix the bits per color field - Clarify the code that sets the link rate - Expose the function so that it can be called by rest of DC A subsequent commit will call this function from DCE HWSS. Signed-off-by: Timur Kristóf Reviewed-by: Alex Hung Signed-off-by: Alex Deucher