Revert "drm/amd/display: Always write repeater mode regardless of LTTPR"

This reverts commit 2b7605d73b97e2fa28e0817242e66ca968d2a7cb

Some displays are not lighting up when put in LTTPR Transparent Mode

Signed-off-by: Wesley Chalmers <Wesley.Chalmers@amd.com>
Reviewed-by: Jun Lei <Jun.Lei@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org

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 b8832bd..6860827 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
@@ -1620,11 +1620,12 @@ enum dc_status dpcd_configure_lttpr_mode(struct dc_link *link, struct link_train
 {
        enum dc_status status = DC_OK;
 
-       if (lt_settings->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT)
-               status = configure_lttpr_mode_non_transparent(link, lt_settings);
-       else
+       if (lt_settings->lttpr_mode == LTTPR_MODE_TRANSPARENT)
                status = configure_lttpr_mode_transparent(link);
 
+       else if (lt_settings->lttpr_mode == LTTPR_MODE_NON_TRANSPARENT)
+               status = configure_lttpr_mode_non_transparent(link, lt_settings);
+
        return status;
 }