drm/amd/display: DP compliance automation test fixes

Fixes:
1. Removing pending flag since we are executing teh entire flow without context switches
2. Adding stream enablment - connection between DIG BE to DIG FE during test link training

Signed-off-by: Leon Elazar <leon.elazar@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <Harry.Wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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 c9c1b48..6fe5acb 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_dp.c
@@ -1738,8 +1738,7 @@ static void handle_automated_test(struct core_link *link)
        }
        if (test_request.bits.LINK_TEST_PATTRN) {
                dp_test_send_link_test_pattern(link);
-               link->public.compliance_test_state.bits.
-                       SET_TEST_PATTERN_PENDING = 1;
+               test_response.bits.ACK = 1;
        }
        if (test_request.bits.PHY_TEST_PATTERN) {
                dp_test_send_phy_test_pattern(link);
@@ -2308,11 +2307,9 @@ bool dc_link_dp_set_test_pattern(
        unsigned int i;
        unsigned char link_qual_pattern[LANE_COUNT_DP_MAX] = {0};
        union dpcd_training_pattern training_pattern;
-       union test_response test_response;
        enum dpcd_phy_test_patterns pattern;
 
        memset(&training_pattern, 0, sizeof(training_pattern));
-       memset(&test_response, 0, sizeof(test_response));
 
        for (i = 0; i < MAX_PIPES; i++) {
                if (pipes[i].stream->sink->link == core_link) {
@@ -2442,20 +2439,6 @@ bool dc_link_dp_set_test_pattern(
                set_crtc_test_pattern(core_link, &pipe_ctx, test_pattern);
                /* Set Test Pattern state */
                core_link->public.test_pattern_enabled = true;
-
-               /* If this is called because of compliance test request,
-                * we respond ack here.
-                */
-               if (core_link->public.compliance_test_state.bits.
-                               SET_TEST_PATTERN_PENDING == 1) {
-                       core_link->public.compliance_test_state.bits.
-                                               SET_TEST_PATTERN_PENDING = 0;
-                       test_response.bits.ACK = 1;
-                       core_link_write_dpcd(core_link,
-                                       DP_TEST_RESPONSE,
-                                       &test_response.raw,
-                                       sizeof(test_response));
-               }
        }
 
        return true;

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c
index b0ac94d..3b81459 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc_link_hwss.c
@@ -251,6 +251,8 @@ void dp_retrain_link_dp_test(struct core_link *link,
 
                        dp_receiver_power_ctrl(link, false);
 
+                       link->dc->hwss.disable_stream(&pipes[i]);
+
                        link->link_enc->funcs->disable_output(
                                        link->link_enc,
                                        SIGNAL_TYPE_DISPLAY_PORT);
@@ -273,6 +275,8 @@ void dp_retrain_link_dp_test(struct core_link *link,
 
                        link->public.cur_link_settings = *link_setting;
 
+                       link->dc->hwss.enable_stream(&pipes[i]);
+
                        link->dc->hwss.unblank_stream(&pipes[i],
                                        link_setting);
                }

diff --git a/drivers/gpu/drm/amd/display/dc/dc_dp_types.h b/drivers/gpu/drm/amd/display/dc/dc_dp_types.h
index 1666f10..cd2323a 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dc_dp_types.h
+++ b/drivers/gpu/drm/amd/display/dc/dc_dp_types.h
@@ -432,8 +432,7 @@ union phy_test_pattern {
 union compliance_test_state {
        struct {
                unsigned char STEREO_3D_RUNNING        : 1;
-               unsigned char SET_TEST_PATTERN_PENDING : 1;
-               unsigned char RESERVED                 : 6;
+               unsigned char RESERVED                 : 7;
        } bits;
        unsigned char raw;
 };