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authorBindu Ramamurthy <bindu.r@amd.com>2021-05-20 17:06:04 +0300
committerAlex Deucher <alexander.deucher@amd.com>2021-06-03 00:48:20 +0300
commitba8e59773ae59818695d1e20b8939282da80ec8c (patch)
treeb73516aba235c2dfc7bf156490c189c02c213e62 /drivers/gpu/drm/amd
parent8124c8a6b35386f73523d27eacb71b5364a68c4c (diff)
downloadlinux-ba8e59773ae59818695d1e20b8939282da80ec8c.tar.xz
drm/amd/display: Allow bandwidth validation for 0 streams.
[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@amd.com> Reviewed-by: Roman Li <Roman.Li@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd')
-rw-r--r--drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c2
1 files changed, 1 insertions, 1 deletions
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 527e56c353cb..8357aa3c41d5 100644
--- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c
@@ -3236,7 +3236,7 @@ static noinline bool dcn20_validate_bandwidth_fp(struct dc *dc,
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;
}