From: Austin Zheng <Austin.Zheng@amd.com>
Date: Thu, 26 Sep 2024 20:18:10 +0000 (-0400)
Subject: drm/amd/display: Allow Latency Increase For Last Strategy
X-Git-Tag: microblaze-v6.16~490^2~20^2~133
X-Git-Url: http://git.monstr.eu/?a=commitdiff_plain;h=94d904aec19c276057d4cd9dfcc15846bee852e7;p=linux-2.6-microblaze.git

drm/amd/display: Allow Latency Increase For Last Strategy

[Why]
Playing 1080p video on 4k60 timing uses UCLK DPM5 and mode support
determines that p-state switching is not supported.

[How]
Allow DML to increase latency as the last strategy so strategies such
as VBlank p-state switching may become possible

Reviewed-by: Alvin Lee <alvin.lee2@amd.com>
Signed-off-by: Austin Zheng <Austin.Zheng@amd.com>
Signed-off-by: Rodrigo Siqueira <rodrigo.siqueira@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_pmo/dml2_pmo_dcn4_fams2.c b/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_pmo/dml2_pmo_dcn4_fams2.c
index 1cf9015e854a..5a09dd298e6f 100644
--- a/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_pmo/dml2_pmo_dcn4_fams2.c
+++ b/drivers/gpu/drm/amd/display/dc/dml2/dml21/src/dml2_pmo/dml2_pmo_dcn4_fams2.c
@@ -1798,6 +1798,7 @@ bool pmo_dcn4_fams2_init_for_pstate_support(struct dml2_pmo_init_for_pstate_supp
 	}
 
 	if (s->pmo_dcn4.num_pstate_candidates > 0) {
+		s->pmo_dcn4.pstate_strategy_candidates[s->pmo_dcn4.num_pstate_candidates - 1].allow_state_increase = true;
 		s->pmo_dcn4.cur_pstate_candidate = -1;
 		return true;
 	} else {