From: Xiaodong Yan <[email protected]> [why] blank all dp stream would impact edp
[how] only blank the one which will be powered off Signed-off-by: Xiaodong Yan <[email protected]> Reviewed-by: Yongqiang Sun <[email protected]> Acked-by: Rodrigo Siqueira <[email protected]> --- .../amd/display/dc/dcn10/dcn10_hw_sequencer.c | 25 +++++++++++-------- 1 file 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); + } } } } -- 2.26.0 _______________________________________________ amd-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/amd-gfx
