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| author | Bindu Ramamurthy <bindu.r@amd.com> | 2021-05-20 10:06:04 -0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-06-18 09:58:59 +0200 |
| commit | 12fa0fdbcd0fb02b51d488f321439979eb72565b (patch) | |
| tree | a843f82d9b92db38a43c1d7e333784b369ef9679 | |
| parent | 8c48345fdc98ec5e147cde95f341507c8ae3b87d (diff) | |
| download | linux-stable-12fa0fdbcd0fb02b51d488f321439979eb72565b.tar.gz linux-stable-12fa0fdbcd0fb02b51d488f321439979eb72565b.tar.bz2 linux-stable-12fa0fdbcd0fb02b51d488f321439979eb72565b.zip | |
drm/amd/display: Allow bandwidth validation for 0 streams.
[ 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@amd.com>
Reviewed-by: Roman Li <Roman.Li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn20/dcn20_resource.c | 2 |
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 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; } |