drm/amd/display: add flag to allow diag to force enumerate edp

[why]
SLT tests require that diag can drive eDP even if nothing is connected, this is not
typical production use case, so we need to add flag

[how]
add flag, and this flag supercedes "should destroy" logic

Signed-off-by: Jun Lei <Jun.Lei@amd.com>
Reviewed-by: Aric Cyr <Aric.Cyr@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 55b82ca..5e487bb 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -194,7 +194,7 @@ static bool create_links(
                                }
                        }
 
-                       if (!should_destory_link) {
+                       if (dc->config.force_enum_edp || !should_destory_link) {
                                dc->links[dc->link_count] = link;
                                link->dc = dc;
                                ++dc->link_count;

diff --git a/drivers/gpu/drm/amd/display/dc/dc.h b/drivers/gpu/drm/amd/display/dc/dc.h
index a86dad3..b578b21 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dc.h
+++ b/drivers/gpu/drm/amd/display/dc/dc.h
@@ -220,6 +220,7 @@ struct dc_config {
        bool allow_seamless_boot_optimization;
        bool power_down_display_on_boot;
        bool edp_not_connected;
+       bool force_enum_edp;
        bool forced_clocks;
        bool disable_extended_timeout_support; // Used to disable extended timeout and lttpr feature as well
        bool multi_mon_pp_mclk_switch;