starfive-tech/linux.git - StarFive Tech Linux Kernel for VisionFive (JH7110) boards (mirror)

Age	Commit message (Collapse)	Author	Files	Lines
2024-03-20	drm/amd/display: Support long vblank feature	Robin Chen	1	-1/+164
	[WHY] We want to support low hz case, but the original vtotal/vtotal_min/vtotal_max can't support more than 0x7FFF. [HOW] We use the 2 HW reg to contorl long vblank case. 1. OTG_V_COUNT_STOP_CONTROL -> vcount_stop 2. OTG_V_COUNT_STOP_CONTROL2 -> vcount_stop_timer vcount_stop define from which line we stop using vcount and start using vcount2. vcount_stop_timer define how long we use vcount2. Ex: Vtotal = 7 OTG_V_COUNT_STOP_CONTROL = 4 OTG_V_COUNT_STOP_CONTROL2 = 5 time : 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 vcount : 0, 1, 2, 3, - - - - - 4, 5, 6 vcount2 : 0, 1, 2, 3, 4, Reviewed-by: Jun Lei <jun.lei@amd.com> Acked-by: Alex Hung <alex.hung@amd.com> Signed-off-by: ChunTao Tso <chuntao.tso@amd.com> Signed-off-by: Robin Chen<robin.chen@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-01-19	drm/amd/display: Clear OPTC mem select on disable	Ilya Bakoulin	1	-0/+3
	[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 <mario.limonciello@amd.com> Cc: Alex Deucher <alexander.deucher@amd.com> Cc: stable@vger.kernel.org Reviewed-by: Charlene Liu <charlene.liu@amd.com> Acked-by: Alex Hung <alex.hung@amd.com> Signed-off-by: Ilya Bakoulin <ilya.bakoulin@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2024-01-09	drm/amd/display: Disconnect phantom pipe OPP from OPTC being disabled	George Shen	1	-6/+6
	[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 <dillon.varone@amd.com> Acked-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com> Signed-off-by: George Shen <george.shen@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-12-19	drm/amd/display: Fix hang/underflow when transitioning to ODM4:1	Ilya Bakoulin	1	-0/+7
	[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 <alvin.lee2@amd.com> Acked-by: Wayne Lin <wayne.lin@amd.com> Signed-off-by: Ilya Bakoulin <ilya.bakoulin@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
2023-11-30	drm/amd/display: Refactor OPTC into component folder	Parandhaman K	1	-0/+290
	[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 <martin.leung@amd.com> Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com> Signed-off-by: Parandhaman K <parandhaman.k@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>