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drm/amd/display: Program OTG vtotal min/max selectors unconditionally

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OTG_V_TOTAL_MIN/MAX_SEL bits are required to be programmed to 1 if
writes to OTG timing registers need to be honoured. This is usually
needed only when freesync is active. However, SubVP + DRR requires that
we're able to change timing even without freesync being active (but
supported). By unconditionally writing this bit to 1, we remove an
unnecessary dependency so that DMCUB can change OTG timing whenever it wants.

Signed-off-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Reviewed-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Aurabindo Pillai
2023-03-21 11:31:22 -04:00
committed by Alex Deucher
parent 5e9252d841
commit 7a1187eab0
1 changed files with 2 additions and 9 deletions
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11
drivers/gpu/drm/amd/display/dc/dcn32/dcn32_optc.c
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@@ -245,16 +245,9 @@ static void optc32_set_drr(
}
optc->funcs->set_vtotal_min_max(optc, params->vertical_total_min - 1, params->vertical_total_max - 1);
optc32_setup_manual_trigger(optc);
} else {
REG_UPDATE_4(OTG_V_TOTAL_CONTROL,
OTG_SET_V_TOTAL_MIN_MASK, 0,
OTG_V_TOTAL_MIN_SEL, 0,
OTG_V_TOTAL_MAX_SEL, 0,
OTG_FORCE_LOCK_ON_EVENT, 0);
optc->funcs->set_vtotal_min_max(optc, 0, 0);
}
optc32_setup_manual_trigger(optc);
}
static struct timing_generator_funcs dcn32_tg_funcs = {