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authorAurabindo Pillai <aurabindo.pillai@amd.com>2023-06-01 20:09:44 +0300
committerAlex Deucher <alexander.deucher@amd.com>2023-06-09 19:39:32 +0300
commit1598fc576420207e5c89088fc46610c2318e2f5c (patch)
treee4d28fe07eb8aefa169b07eb7ac26016eee27485 /drivers/gpu/drm/amd/display/dc/dcn303
parent3cb4807dbf7f47f0a1368f78e7c37b1dd515c2dd (diff)
downloadlinux-1598fc576420207e5c89088fc46610c2318e2f5c.tar.xz
drm/amd/display: Program OTG vtotal min/max selectors unconditionally for DCN1+
For FPO/FAMS, DMCUB will try to change the output timings by writing to the OTG registers. However, the timings written directly to the OTG registers will not be honoured unless VMIN/VMAX selector registers are programmed with the right bits and trigger source is selected correctly. Proper solution needs to go into DMCUB but will require additional state tracking to ensure that the selectors are set and reset correctly as per driver state. Until fix is merged into firmware, apply the workaround in driver to unconditionally write OTG vmin/vmax selectors. Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com> Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn303')
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