drm/amd/display: add debug keys for override bios settings.

[why]
adding debug keys used for compliance test.

Reviewed-by: Chris Park <Chris.Park@amd.com>
Acked-by: Jasdeep Dhillon <jdhillon@amd.com>
Signed-off-by: Charlene Liu <Charlene.Liu@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
index 5d70f99..53b077b 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
+++ b/drivers/gpu/drm/amd/display/dc/bios/bios_parser2.c
@@ -24,6 +24,7 @@
  */
 
 #include "dm_services.h"
+#include "core_types.h"
 
 #include "ObjectID.h"
 #include "atomfirmware.h"
@@ -1374,7 +1375,7 @@ static enum bp_result bios_parser_get_lttpr_interop(
        default:
                break;
        }
-
+       DC_LOG_BIOS("DCE_INFO_CAPS_VBIOS_LTTPR_TRANSPARENT_ENABLE: %d tbl_revision.major = %d tbl_revision.minor = %d\n", *dce_caps, tbl_revision.major, tbl_revision.minor);
        return result;
 }
 
@@ -1390,6 +1391,7 @@ static enum bp_result bios_parser_get_lttpr_caps(
        if (!DATA_TABLES(dce_info))
                return BP_RESULT_UNSUPPORTED;
 
+       *dce_caps  = 0;
        header = GET_IMAGE(struct atom_common_table_header,
                                                DATA_TABLES(dce_info));
        get_atom_data_table_revision(header, &tbl_revision);
@@ -1423,7 +1425,11 @@ static enum bp_result bios_parser_get_lttpr_caps(
        default:
                break;
        }
-
+       DC_LOG_BIOS("DCE_INFO_CAPS_LTTPR_SUPPORT_ENABLE: %d tbl_revision.major = %d tbl_revision.minor = %d\n", *dce_caps, tbl_revision.major, tbl_revision.minor);
+       if (dcb->ctx->dc->config.force_bios_enable_lttpr && *dce_caps == 0) {
+               *dce_caps = 1;
+               DC_LOG_BIOS("DCE_INFO_CAPS_VBIOS_LTTPR_TRANSPARENT_ENABLE: forced enabled");
+       }
        return result;
 }
 
@@ -2994,13 +3000,22 @@ static enum bp_result construct_integrated_info(
                                                info->ext_disp_conn_info.path[i].ext_encoder_obj_id.id,
                                                info->ext_disp_conn_info.path[i].caps
                                                );
+                       if (info->ext_disp_conn_info.path[i].caps & EXT_DISPLAY_PATH_CAPS__DP_FIXED_VS_EN)
+                               DC_LOG_BIOS("BIOS EXT_DISPLAY_PATH_CAPS__DP_FIXED_VS_EN on path %d\n", i);
+                       else if (bp->base.ctx->dc->config.force_bios_fixed_vs) {
+                               info->ext_disp_conn_info.path[i].caps |= EXT_DISPLAY_PATH_CAPS__DP_FIXED_VS_EN;
+                               DC_LOG_BIOS("driver forced EXT_DISPLAY_PATH_CAPS__DP_FIXED_VS_EN on path %d\n", i);
+                       }
                }
-
                // Log the Checksum and Voltage Swing
                DC_LOG_BIOS("Integrated info table CHECKSUM: %d\n"
                                        "Integrated info table FIX_DP_VOLTAGE_SWING: %d\n",
                                        info->ext_disp_conn_info.checksum,
                                        info->ext_disp_conn_info.fixdpvoltageswing);
+               if (bp->base.ctx->dc->config.force_bios_fixed_vs && info->ext_disp_conn_info.fixdpvoltageswing == 0) {
+                       info->ext_disp_conn_info.fixdpvoltageswing = bp->base.ctx->dc->config.force_bios_fixed_vs & 0xF;
+                       DC_LOG_BIOS("driver forced fixdpvoltageswing = %d\n", info->ext_disp_conn_info.fixdpvoltageswing);
+               }
        }
        /* Sort voltage table from low to high*/
        for (i = 1; i < NUMBER_OF_DISP_CLK_VOLTAGE; ++i) {

diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index 659c717..8e392eb 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -406,6 +406,9 @@ struct dc_config {
        bool ignore_dpref_ss;
        bool enable_mipi_converter_optimization;
        bool use_default_clock_table;
+       bool force_bios_enable_lttpr;
+       uint8_t force_bios_fixed_vs;
+
 };
 
 enum visual_confirm {