linux/drivers/gpu/drm/amd/display/include, branch v6.4

drm/amd/display: allow edp updates for virtual signal

2023-04-27T02:27:51Z

[Why] When IGT's kms_hdmi_inject forces EDID for HDMI audio, dc rejects the request because virtual signal is not in dc_is_audio_capable_signal function. [How] Includes SIGNAL_TYPE_VIRTUAL as audio capable. Reviewed-by: Chao-kai Wang Acked-by: Qingqing Zhuo Signed-off-by: Alex Hung Signed-off-by: Wenchieh Chien Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Add CRC and DMUB test support

2023-03-22T04:59:52Z

[Why & How] - Add CRC for test support - Add params to allow control into to DMUB. Reviewed-by: Chris Park Acked-by: Qingqing Zhuo Signed-off-by: Charlene Liu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display/amdgpu_dm/amdgpu_dm_helpers: Move defines out to where they are actually used

2023-03-22T04:48:00Z

Fixes the following W=1 kernel build warning(s): drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h: At top level: drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:143:22: warning: ‘SYNAPTICS_DEVICE_ID’ defined but not used [-Wunused-const-variable=] drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:140:22: warning: ‘DP_VGA_LVDS_CONVERTER_ID_3’ defined but not used [-Wunused-const-variable=] drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:138:22: warning: ‘DP_VGA_LVDS_CONVERTER_ID_2’ defined but not used [-Wunused-const-variable=] drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:133:22: warning: ‘DP_SINK_DEVICE_STR_ID_2’ defined but not used [-Wunused-const-variable=] drivers/gpu/drm/amd/amdgpu/../display/include/ddc_service_types.h:132:22: warning: ‘DP_SINK_DEVICE_STR_ID_1’ defined but not used [-Wunused-const-variable=] [snip 400 similar lines brevity] Cc: Harry Wentland Cc: Leo Li Cc: Rodrigo Siqueira Cc: Alex Deucher Cc: "Christian König" Cc: "Pan, Xinhui" Cc: David Airlie Cc: Daniel Vetter Cc: amd-gfx@lists.freedesktop.org Cc: dri-devel@lists.freedesktop.org Signed-off-by: Lee Jones Signed-off-by: Alex Deucher

drm/amd/display: Drop CONFIG_DRM_AMD_DC_HDCP

2023-03-07T19:22:39Z

[Why & How] There is no reason we still need a config option for this. Reviewed-by: Wenjing Liu Acked-by: Qingqing Zhuo Signed-off-by: Harry Wentland Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: merge dc_link.h into dc.h and dc_types.h

2023-02-28T19:30:00Z

[why] Remove the need to include dc_link.h separately. dc.h should contain everything needed on DM side. [How] Merge dc_link.h into dc.h and dc_types.h so DM only needs to include dc.h to use all link public functions. Reviewed-by: Jun Lei Acked-by: Qingqing Zhuo Signed-off-by: Wenjing Liu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Enable Freesync over PCon

2023-01-31T19:00:44Z

[why] Enable Freesync over PCon on Linux environment. [how] Adding Freesync over PCon support in amdgpu_dm - Read DPCD for Freesync over PCon capabilitiy - Add whitelist for compatible branch devices Reviewed-by: Chao-kai Wang Acked-by: Alex Hung Signed-off-by: Sung Joon Kim Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: move dp link training logic to link_dp_training

2023-01-17T20:38:28Z

[why] Extract dp link training logic out to their own files. link_dp_training - high level training sequence and helper functions. link_dp_training_8b_10b - dp1.x training link_dp_training_auxless - aux-less training link_dp_traininig_dpia - dpia training link_dp_training_fixed_vs_pe_retimer - fixed vs pe retimer training link_dp_training_128b_132b - dp2.1 training Tested-by: Daniel Wheeler Reviewed-by: Wesley Chalmers Acked-by: Rodrigo Siqueira Signed-off-by: Wenjing Liu Signed-off-by: Alex Deucher

drm/amd/display: refactor ddc logic from dc_link_ddc to link_ddc

2023-01-13T19:57:40Z

[why] 1. Move dd_link_ddc functions to link_ddc. 2. Move link ddc functions declaration exposed in dc to link.h 3. Move link ddc functions declaration exposed in dm to dc_link.h 4. Remove i2caux_interface.h file Tested-by: Daniel Wheeler Reviewed-by: Jun Lei Acked-by: Rodrigo Siqueira Signed-off-by: Wenjing Liu Signed-off-by: Alex Deucher

drm/amd/display: add support for three new square pattern variants from DP2.1 specs

2022-12-15T17:18:19Z

[why] DP2.1 specs has brought 3 new variants of sqaure patterns with different pre-shoot and de-emphasis equalization requirements. The commit adds logic to identify these variants and apply corresponding eqaulization requirements into hardware lane settings. Reviewed-by: George Shen Acked-by: Jasdeep Dhillon Signed-off-by: Wenjing Liu Signed-off-by: Alex Deucher

drm/amd/display: Refactor LTTPR mode selection

2022-09-29T13:41:46Z

[WHY] Previously, LTTPR mode was decided during detection which makes link training inflexible as mode can't be dynamically changed. [HOW] -Remove lttpr_mode from link struct, and move to link training settings -Defer choosing LTTPR mode until link training Other DP changes included: -Only use fixed vs/pe link training sequence for 8b/10b encoding -Restrict fixed vs aux timeout workaround to Yellow Carp family Reviewed-by: Wenjing Liu Signed-off-by: Michael Strauss Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher