From 2d6d7bd8a7b1cbbb60f5a4233e389ee45d278973 Mon Sep 17 00:00:00 2001 From: Lewis Huang Date: Thu, 3 Oct 2019 16:01:25 +0800 Subject: [PATCH 4258/4736] drm/amd/display: take signal type from link [Why] Signal is update to EDP when driver disable first encoder. The following encoder using SIGNAL_TYPE_EDP to handle other device. When encoder signal is HDMI, driver will detect it is dp and release phy. It cause hw hang. [How] Take signal type from link->connector_signal. Signed-off-by: Lewis Huang Reviewed-by: Eric Yang Acked-by: Leo Li --- .../drm/amd/display/dc/dce110/dce110_hw_sequencer.c | 11 +++-------- 1 file changed, 3 insertions(+), 8 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c index d1e14393a0f0..0d171874ef4e 100644 --- a/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c +++ b/drivers/gpu/drm/amd/display/dc/dce110/dce110_hw_sequencer.c @@ -1418,8 +1418,6 @@ static enum dc_status apply_single_controller_ctx_to_hw( static void power_down_encoders(struct dc *dc) { int i; - enum connector_id connector_id; - enum signal_type signal = SIGNAL_TYPE_NONE; /* do not know BIOS back-front mapping, simply blank all. It will not * hurt for non-DP @@ -1430,15 +1428,12 @@ static void power_down_encoders(struct dc *dc) } for (i = 0; i < dc->link_count; i++) { - connector_id = dal_graphics_object_id_get_connector_id(dc->links[i]->link_id); - if ((connector_id == CONNECTOR_ID_DISPLAY_PORT) || - (connector_id == CONNECTOR_ID_EDP)) { + enum signal_type signal = dc->links[i]->connector_signal; + if ((signal == SIGNAL_TYPE_EDP) || + (signal == SIGNAL_TYPE_DISPLAY_PORT)) if (!dc->links[i]->wa_flags.dp_keep_receiver_powered) dp_receiver_power_ctrl(dc->links[i], false); - if (connector_id == CONNECTOR_ID_EDP) - signal = SIGNAL_TYPE_EDP; - } dc->links[i]->link_enc->funcs->disable_output( dc->links[i]->link_enc, signal); -- 2.17.1