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drm/amd/display: only blank dp stream which will be powered off

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[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>
This commit is contained in:
Xiaodong Yan 2020-04-05 16:40:51 -04:00 committed by Alex Deucher
parent 49c4a8b6d9
commit 8d9c07b0eb
1 changed files with 15 additions and 10 deletions
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25
drivers/gpu/drm/amd/display/dc/dcn10/dcn10_hw_sequencer.c
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@ -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);
}
}
}
}