diff options
| author | Xiaodong Yan <Xiaodong.Yan@amd.com> | 2020-04-05 16:40:51 -0400 |
|---|---|---|
| committer | Alex Deucher <alexander.deucher@amd.com> | 2020-04-09 10:43:16 -0400 |
| commit | 8d9c07b0eb099a0bda247d0206acb3a76410914d (patch) | |
| tree | d487670fa8acdf3be80386310e4877b10fe5163e /drivers/gpu/drm/amd/display | |
| parent | 49c4a8b6d93b533e266cb9f76eae4067592e077e (diff) | |
drm/amd/display: only blank dp stream which will be powered off
[why]
blank all dp stream would impact edp
[how]
only blank the one which will be powered off
Signed-off-by: Xiaodong Yan <Xiaodong.Yan@amd.com>
Reviewed-by: Yongqiang Sun <yongqiang.sun@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu/drm/amd/display')
| -rw-r--r-- | drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c index 6086bbec94fe..ac133fac4dfc 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c @@ -1238,7 +1238,7 @@ void dcn10_init_pipes(struct dc *dc, struct dc_state *context) void dcn10_init_hw(struct dc *dc) { - int i; + int i, j; struct abm *abm = dc->res_pool->abm; struct dmcu *dmcu = dc->res_pool->dmcu; struct dce_hwseq *hws = dc->hwseq; @@ -1328,14 +1328,6 @@ void dcn10_init_hw(struct dc *dc) uint8_t dpcd_power_state = '\0'; enum dc_status status = DC_ERROR_UNEXPECTED; - /* blank all dp streams before power off receiver, - * this should only impact DP - */ - for (i = 0; i < dc->res_pool->stream_enc_count; i++) { - dc->res_pool->stream_enc[i]->funcs->dp_blank( - dc->res_pool->stream_enc[i]); - } - for (i = 0; i < dc->link_count; i++) { if (dc->links[i]->connector_signal != SIGNAL_TYPE_DISPLAY_PORT) continue; @@ -1350,8 +1342,21 @@ void dcn10_init_hw(struct dc *dc) /* if any of the displays are lit up turn them off */ status = core_link_read_dpcd(dc->links[i], DP_SET_POWER, &dpcd_power_state, sizeof(dpcd_power_state)); - if (status == DC_OK && dpcd_power_state == DP_POWER_STATE_D0) + if (status == DC_OK && dpcd_power_state == DP_POWER_STATE_D0) { + /* blank dp stream before power off receiver*/ + if (dc->links[i]->link_enc->funcs->get_dig_frontend) { + unsigned int fe = dc->links[i]->link_enc->funcs->get_dig_frontend(dc->links[i]->link_enc); + + for (j = 0; j < dc->res_pool->stream_enc_count; j++) { + if (fe == dc->res_pool->stream_enc[j]->id) { + dc->res_pool->stream_enc[j]->funcs->dp_blank( + dc->res_pool->stream_enc[j]); + break; + } + } + } dp_receiver_power_ctrl(dc->links[i], false); + } } } } |