diff options
| author | Jake Wang <haonan.wang2@amd.com> | 2021-10-21 19:10:17 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2021-11-03 12:32:34 -0400 |
| commit | 0a068b683c87a85351a06017932fb0d4ec8d6b4b (patch) | |
| tree | ecb67e5616cde6c867403855957d562166a11a1b /drivers/gpu/drm/amd/display/dc/dcn20 | |
| parent | edcf52caa985c010d0a6022190c8e3d3980a0223 (diff) | |
drm/amd/display: Added HPO HW control shutdown support
[Why]
HPO is only used for DP2.0. HPO HW control should be
disable when not being used to save power.
[How]
Shutdown HPO HW control during init hw.
Shutdown HPO HW control during stream disable.
Enable HPO HW control during stream enable if DP2.0.
Acked-by: Aurabindo Pillai <aurabindo.pillai@amd.com>
Signed-off-by: Jake Wang <haonan.wang2@amd.com>
Reviewed-by: Nicholas Kazlauskas <Nicholas.Kazlauskas@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display/dc/dcn20')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c index cfee456c6c9a..4f88376a118f 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c +++ b/drivers/gpu/drm/amd/display/dc/dcn20/dcn20_hwseq.c @@ -2397,6 +2397,9 @@ void dcn20_enable_stream(struct pipe_ctx *pipe_ctx) * BY this, it is logic clean to separate stream and link */ if (is_dp_128b_132b_signal(pipe_ctx)) { + if (pipe_ctx->stream->ctx->dc->hwseq->funcs.setup_hpo_hw_control) + pipe_ctx->stream->ctx->dc->hwseq->funcs.setup_hpo_hw_control( + pipe_ctx->stream->ctx->dc->hwseq, true); setup_dp_hpo_stream(pipe_ctx, true); pipe_ctx->stream_res.hpo_dp_stream_enc->funcs->enable_stream( pipe_ctx->stream_res.hpo_dp_stream_enc); |