From: Xiaodong Yan <Xiaodong.Yan@xxxxxxx>
[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@xxxxxxx>
Reviewed-by: Yongqiang Sun <yongqiang.sun@xxxxxxx>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@xxxxxxx>
---
.../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
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