drm/amd/display: disable seamless boot for external DP

[Why]
Primary feature use case is with eDP panels.

[How]
Fail seamless boot validation if display is not an eDP panel.

Signed-off-by: Anthony Wang <anthony1.wang@amd.com>
Reviewed-by: Martin Leung <Martin.Leung@amd.com>
Acked-by: Aurabindo Pillai <aurabindo.pillai@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/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index 724ddce8aa412a5c322ed9115d251000597c0f09..ee4970491d7b899a5292062e1910cdd944341e1a 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -1323,11 +1323,10 @@ bool dc_validate_seamless_boot_timing(const struct dc *dc,
        struct dc_link *link = sink->link;
        unsigned int i, enc_inst, tg_inst = 0;
 
-       // Seamless port only support single DP and EDP so far
-       if ((sink->sink_signal != SIGNAL_TYPE_DISPLAY_PORT &&
-               sink->sink_signal != SIGNAL_TYPE_EDP) ||
-               sink->sink_signal == SIGNAL_TYPE_DISPLAY_PORT_MST)
+       /* Support seamless boot on EDP displays only */
+       if (sink->sink_signal != SIGNAL_TYPE_EDP) {
                return false;
+       }
 
        /* Check for enabled DIG to identify enabled display */
        if (!link->link_enc->funcs->is_dig_enabled(link->link_enc))