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drm/amd/display: fix zstate allow interface to PMFW

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[Why]
psr_feature_enabled flag is dynamically updated, and sometimes when
zstate allow status is determined the flag has not been set to true yet
even on PSR enabled config, lid off/on is such a case, which will result
in zstate disabled even though PSR is supported.

[How]
Check the supported PSR version and the PSR disable status instead.

Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Eric Yang <Eric.Yang2@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Eric Yang 2022-01-23 13:20:20 -05:00 committed by Alex Deucher
parent 05d6aea36a
commit 85b8f62b56
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
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@ -3099,7 +3099,7 @@ static enum dcn_zstate_support_state decide_zstate_support(struct dc *dc, struc
if (context->bw_ctx.dml.vba.StutterPeriod > 5000.0)
return DCN_ZSTATE_SUPPORT_ALLOW;
else if (link->psr_settings.psr_feature_enabled)
else if (link->psr_settings.psr_version == DC_PSR_VERSION_1 && !dc->debug.disable_psr)
return DCN_ZSTATE_SUPPORT_ALLOW_Z10_ONLY;
else
return DCN_ZSTATE_SUPPORT_DISALLOW;