Commit 85b8f62b authored by Eric Yang's avatar Eric Yang Committed by Alex Deucher
Browse files

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



[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: default avatarDaniel Wheeler <daniel.wheeler@amd.com>
Reviewed-by: default avatarNicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Acked-by: default avatarRodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: default avatarEric Yang <Eric.Yang2@amd.com>
Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 05d6aea3

drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c

+1 −1
Original line number Diff line number Diff line
@@ -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;