From: Dmytro Laktyushkin <Dmytro.Laktyushkin@xxxxxxx> Seamless boot requires VBIOS to select dig matching to link order wise. A significant amount of dal logic makes assumption we are using preferred dig for eDP and if this isn't the case then seamless boot is not supported. Reviewed-by: Martin Leung <Martin.Leung@xxxxxxx> Acked-by: Stylon Wang <stylon.wang@xxxxxxx> Signed-off-by: Dmytro Laktyushkin <Dmytro.Laktyushkin@xxxxxxx> --- drivers/gpu/drm/amd/display/dc/core/dc.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c index 87994ae0a397..486d18290b9f 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc.c @@ -1556,6 +1556,9 @@ bool dc_validate_boot_timing(const struct dc *dc, if (tg_inst >= dc->res_pool->timing_generator_count) return false; + if (tg_inst != link->link_enc->preferred_engine) + return false; + tg = dc->res_pool->timing_generators[tg_inst]; if (!tg->funcs->get_hw_timing) -- 2.25.1
