kernel/linux.git/drivers/gpu/drm/amd/display/dc/optc, branch v6.12.80

drm/amd/display: Wait until OTG enable state is cleared

2025-11-13T20:34:10+00:00

[ Upstream commit e7496c15d830689cc4fc666b976c845ed2c5ed28 ] [Why] Customer reported an issue that OS starts and stops device multiple times during driver installation. Frequently disabling and enabling OTG may prevent OTG from being safely disabled and cause incorrect configuration upon the next enablement. [How] Add a wait until OTG_CURRENT_MASTER_EN_STATE is cleared as a short term solution. Reviewed-by: Dillon Varone Signed-off-by: TungYu Lu Signed-off-by: Tom Chung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/amd/display: restore immediate_disable_crtc for w/a

2024-07-27T21:32:15+00:00

[why] immediate_disable_crtc does not reset ODM. if switching to disable_crtc which will disable ODM as well. i.e. need to restore ODM mem cfg at reenable it at end of w/a. Signed-off-by: Charlene Liu Reviewed-by: Xi (Alex) Liu Tested-by: Daniel Wheeler Signed-off-by: Rodrigo Siqueira Signed-off-by: Alex Deucher

drm/amd/display: Add 'pstate_keepout' kdoc entry in 'optc1_program_timing'

2024-07-23T21:32:50+00:00

Fixes the below with gcc W=1: Function parameter or struct member 'pstate_keepout' not described in 'optc1_program_timing' Cc: Tom Chung Cc: Rodrigo Siqueira Cc: Roman Li Cc: Alex Hung Cc: Aurabindo Pillai Cc: Harry Wentland Cc: Hamza Mahfooz Signed-off-by: Srinivasan Shanmugam Reviewed-by: Tom Chung Signed-off-by: Alex Deucher

drm/amd/display: Add P-State Keepout to dcn401 Global Sync

2024-07-23T21:07:12+00:00

[WHY&HOW] OTG has new functionality to allow P-State relative to VStartup. Keepout region for this should be configured based on DML outputs same as other global sync params. Reviewed-by: Alvin Lee Signed-off-by: Jerry Zuo Signed-off-by: Dillon Varone Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: fix corruption with high refresh rates on DCN 3.0

2024-07-17T21:41:28+00:00

This reverts commit bc87d666c05a13e6d4ae1ddce41fc43d2567b9a2 and the register changes from commit 6d4279cb99ac4f51d10409501d29969f687ac8dc. Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3412 Cc: mikhail.v.gavrilov@gmail.com Cc: Rodrigo Siqueira Tested-by: Mikhail Gavrilov Reviewed-by: Rodrigo Siqueira Signed-off-by: Alex Deucher Cc: stable@vger.kernel.org # 6.10.x

drm/amd/display: Wait for double buffer update on ODM changes

2024-06-27T21:10:37+00:00

[WHAT & HOW] We must wait for ODM double buffer updates to complete before exiting the pipe update sequence or we may reduce DISPCLK and hit some transient underflow (pixel rate is reduced before the pipes have ODM enabled). Reviewed-by: Samson Tam Cc: Mario Limonciello Cc: Alex Deucher Cc: stable@vger.kernel.org Signed-off-by: Alex Hung Signed-off-by: Alvin Lee Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: bypass ODM before CRTC off

2024-06-14T19:23:34+00:00

[WHY] OPPs couldn't disconnect from the ODM that cause the double buffer pending not being latched due to missing VUPDATE. [HOW] Moving memory blanking before OTG turn off to make sure double buffer latched correctly. Reviewed-by: Dmytro Laktyushkin Acked-by: Zaeem Mohamed Signed-off-by: Yihan Zhu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Updated optc401_set_drr to use dcn401 functions

2024-06-05T15:25:13+00:00

why: optc_401_set_drr was using an old optc3 function to update vtotal min and max, causing crashes when disabling FAMS2 how: Updated dcn401 to point to opt401 function for vtotal updates. This version of the function has FAMS2 logic that allows for FAMS2 to be disabled. Reviewed-by: Dillon Varone Acked-by: Zaeem Mohamed Signed-off-by: Relja Vojvodic Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Fix swapped dimension calculations

2024-06-05T15:05:14+00:00

[Why] The values calculated in optc1_get_otg_active_size are assigned to the wrong output parameters, vertical blank is being used for horizontal size and vice versa. This results in DPG test pattern looking wrong during hardware init, as the DPG dimensions get assigned from this output, and potentially other issues. Reviewed-by: Aric Cyr Acked-by: Zaeem Mohamed Signed-off-by: Joshua Aberback Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amdgpu/display: Update kdoc for 'optc35_set_odm_combine'

2024-05-17T21:40:38+00:00

The parameters segment_width and last_segment_width are used to control the configuration of the Output Plane Processor (OPP), specifically the width of each segment that the display is divided into and the width of the last segment Fixes the below with gcc W=1: drivers/gpu/drm/amd/amdgpu/../display/dc/optc/dcn35/dcn35_optc.c:59: warning: Function parameter or struct member 'segment_width' not described in 'optc35_set_odm_combine' drivers/gpu/drm/amd/amdgpu/../display/dc/optc/dcn35/dcn35_optc.c:59: warning: Function parameter or struct member 'last_segment_width' not described in 'optc35_set_odm_combine' drivers/gpu/drm/amd/amdgpu/../display/dc/optc/dcn35/dcn35_optc.c:59: warning: Excess function parameter 'timing' description in 'optc35_set_odm_combine' Cc: Tom Chung Cc: Rodrigo Siqueira Cc: Roman Li Cc: Aurabindo Pillai Signed-off-by: Srinivasan Shanmugam Reviewed-by: Tom Chung Signed-off-by: Alex Deucher