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drm/amd/display: Don't always set pstate true if dummy latency = 0 

[Why]
If dummy pstate latency is 0 we should report the actual
pstate support, and not that pstate is always supported.

[How]
Don't always program pstate support true

Signed-off-by: Alvin Lee <alvin.lee2@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Alvin Lee 2019-12-12 16:23:24 -05:00 committed by Alex Deucher
parent a166f86e8a
commit 30c9b7a133
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
View File

@ -2918,7 +2918,7 @@ bool dcn20_validate_bandwidth(struct dc *dc, struct dc_state *context,
if (context->bw_ctx.dml.soc.dummy_pstate_latency_us == 0 ||
(voltage_supported && full_pstate_supported)) {
context->bw_ctx.bw.dcn.clk.p_state_change_support = true;
context->bw_ctx.bw.dcn.clk.p_state_change_support = full_pstate_supported;
goto restore_dml_state;
}