kernel.git/drivers/gpu/drm/amd/display/dc/optc, branch linux-6.8.y

drm/amd/display: Do not recursively call manual trigger programming

2024-04-17T09:23:42Z

commit 953927587f37b731abdeabe46ad44a3b3ec67a52 upstream. [WHY&HOW] We should not be recursively calling the manual trigger programming function when FAMS is not in use. Cc: stable@vger.kernel.org Reviewed-by: Alvin Lee Acked-by: Hamza Mahfooz Signed-off-by: Dillon Varone Signed-off-by: Alex Deucher Signed-off-by: Greg Kroah-Hartman

drm/amd/display: Implement wait_for_odm_update_pending_complete

2024-04-03T13:32:27Z

[ Upstream commit 2d7f3d1a5866705be2393150e1ffdf67030ab88d ] [WHY] Odm update is doubled buffered. We need to wait for ODM update to be completed before optimizing bandwidth or programming new udpates. [HOW] implement wait_for_odm_update_pending_complete function to wait for: 1. odm configuration update is no longer pending in timing generator. 2. no pending dpg pattern update for each active OPP. Cc: Mario Limonciello Cc: Alex Deucher Cc: stable@vger.kernel.org Reviewed-by: Alvin Lee Acked-by: Alex Hung Signed-off-by: Wenjing Liu Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher Signed-off-by: Sasha Levin

drm/amd/display: Clear OPTC mem select on disable

2024-01-18T21:31:29Z

[Why] Not clearing the memory select bits prior to OPTC disable can cause DSC corruption issues when attempting to reuse a memory instance for another OPTC that enables ODM. [How] Clear the memory select bits prior to disabling an OPTC. Cc: Mario Limonciello Cc: Alex Deucher Cc: stable@vger.kernel.org Reviewed-by: Charlene Liu Acked-by: Alex Hung Signed-off-by: Ilya Bakoulin Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Disconnect phantom pipe OPP from OPTC being disabled

2024-01-09T20:43:53Z

[Why] If an OPP is used for a different OPTC without first being disconnected from the previous OPTC, unexpected behaviour can occur. This also applies to phantom pipes, which is what the current logic missed. [How] Disconnect OPPs from OPTC for phantom pipes before disabling OTG master. Also move the disconnection to before the OTG master disable, since the register is double buffered. Reviewed-by: Dillon Varone Acked-by: Rodrigo Siqueira Signed-off-by: George Shen Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Fix hang/underflow when transitioning to ODM4:1

2023-12-19T19:59:03Z

[Why] Under some circumstances, disabling an OPTC and attempting to reclaim its OPP(s) for a different OPTC could cause a hang/underflow due to OPPs not being properly disconnected from the disabled OPTC. [How] Ensure that all OPPs are unassigned from an OPTC when it gets disabled. Reviewed-by: Alvin Lee Acked-by: Wayne Lin Signed-off-by: Ilya Bakoulin Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher

drm/amd/display: Refactor OPTC into component folder

2023-11-29T21:49:01Z

[why] Move all optc files to unique folder optc. [how] creating optc repo in dc, and moved the dcnxx_optc.c and .h files into corresponding new folders inside the optc and cleared the linkage errors by adding relative paths in the Makefile.template. Reviewed-by: Martin Leung Acked-by: Hamza Mahfooz Signed-off-by: Parandhaman K Signed-off-by: Alex Deucher