From: Bindu Ramamurthy <bindu.r@xxxxxxx>
[ Upstream commit ba8e59773ae59818695d1e20b8939282da80ec8c ]
[Why]
Bandwidth calculations are triggered for non zero streams, and
in case of 0 streams, these calculations were skipped with
pstate status not being updated.
[How]
As the pstate status is applicable for non zero streams, check
added for allowing 0 streams inline with dcn internal bandwidth
validations.
Signed-off-by: Bindu Ramamurthy <bindu.r@xxxxxxx>
Reviewed-by: Roman Li <Roman.Li@xxxxxxx>
Signed-off-by: Alex Deucher <alexander.deucher@xxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
---
drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
index 08062de3fbeb..2b1175bb2dae 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -2917,7 +2917,7 @@ bool dcn20_validate_bandwidth(struct dc *dc, struct dc_state *context,
voltage_supported = dcn20_validate_bandwidth_internal(dc, context, false);
dummy_pstate_supported = context->bw_ctx.bw.dcn.clk.p_state_change_support;
- if (voltage_supported && dummy_pstate_supported) {
+ if (voltage_supported && (dummy_pstate_supported || !(context->stream_count))) {
context->bw_ctx.bw.dcn.clk.p_state_change_support = false;
goto restore_dml_state;
}
--
2.30.2
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