From: Dmytro Laktyushkin <[email protected]>
Change-Id: Ida231f68edd0ea89e12e578fa7c1b2ae86d91315
Signed-off-by: Dmytro Laktyushkin <[email protected]>
Reviewed-by: Eric Bernstein <[email protected]>
Acked-by: Bhawanpreet Lakha <[email protected]>
---
drivers/gpu/drm/amd/display/dc/core/dc_link.c | 1 +
drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c | 5 ++++-
drivers/gpu/drm/amd/display/dc/dc_link.h | 1 +
drivers/gpu/drm/amd/display/include/grph_object_ctrl_defs.h | 2 ++
4 files changed, 8 insertions(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
index 25e924f93ae8..063f6660c570 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c
@@ -1026,6 +1026,7 @@ static bool construct(
link->link_index = init_params->link_index;
link->link_id = bios->funcs->get_connector_id(bios,
init_params->connector_index);
+ link->dp_ss_off = !!dc_ctx->dc_bios->integrated_info->dp_ss_control;;
if (link->link_id.type != OBJECT_TYPE_CONNECTOR) {
dm_error("%s: Invalid Connector ObjectID from Adapter Service
for connector index:%d! type %d expected %d\n",
diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
index e8a69d7312c8..d91df5ef0cb3 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -953,7 +953,10 @@ enum link_training_result dc_link_dp_perform_link_training(
* LINK_SPREAD_05_DOWNSPREAD_30KHZ :
* LINK_SPREAD_DISABLED;
*/
- lt_settings.link_settings.link_spread = LINK_SPREAD_05_DOWNSPREAD_30KHZ;
+ if (link->dp_ss_off)
+ lt_settings.link_settings.link_spread = LINK_SPREAD_DISABLED;
+ else
+ lt_settings.link_settings.link_spread =
LINK_SPREAD_05_DOWNSPREAD_30KHZ;
/* 1. set link rate, lane count and spread*/
dpcd_set_link_settings(link, <_settings);
diff --git a/drivers/gpu/drm/amd/display/dc/dc_link.h
b/drivers/gpu/drm/amd/display/dc/dc_link.h
index 22f4ddd219d1..d43cefbc43d3 100644
--- a/drivers/gpu/drm/amd/display/dc/dc_link.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_link.h
@@ -73,6 +73,7 @@ struct dc_link {
enum dc_irq_source irq_source_hpd;
enum dc_irq_source irq_source_hpd_rx;/* aka DP Short Pulse */
bool is_hpd_filter_disabled;
+ bool dp_ss_off;
/* caps is the same as reported_link_cap. link_traing use
* reported_link_cap. Will clean up. TODO
diff --git a/drivers/gpu/drm/amd/display/include/grph_object_ctrl_defs.h
b/drivers/gpu/drm/amd/display/include/grph_object_ctrl_defs.h
index 36bbad594267..f312834fef50 100644
--- a/drivers/gpu/drm/amd/display/include/grph_object_ctrl_defs.h
+++ b/drivers/gpu/drm/amd/display/include/grph_object_ctrl_defs.h
@@ -395,6 +395,8 @@ struct integrated_info {
struct i2c_reg_info dp3_ext_hdmi_reg_settings[9];
unsigned char dp3_ext_hdmi_6g_reg_num;
struct i2c_reg_info dp3_ext_hdmi_6g_reg_settings[3];
+ /* V11 */
+ uint32_t dp_ss_control;
};
/**
--
2.14.1
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