[PATCH 18/26] drm/amd/display: Allow Latency Increase For Last Strategy

[Rodrigo Siqueira]

From: Austin Zheng <austin.zh...@amd.com>

[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.l...@amd.com>
Signed-off-by: Austin Zheng <austin.zh...@amd.com>
Signed-off-by: Rodrigo Siqueira <rodrigo.sique...@amd.com>
---
 .../amd/display/dc/dml2/dml21/src/dml2_pmo/dml2_pmo_dcn4_fams2.c | 1 +
 1 file changed, 1 insertion(+)

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 {
-- 
2.45.2