From b1eca05ccfd526b983ecf14d601e636c00917970 Mon Sep 17 00:00:00 2001 From: Hersen Wu Date: Mon, 23 Oct 2017 09:11:46 -0400 Subject: [PATCH 2657/4131] drm/amd/display: Handle as MST first and then DP dongle if sink support both Signed-off-by: Hersen Wu Reviewed-by: Tony Cheng Reviewed-by: Wenjing Liu Acked-by: Harry Wentland Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/core/dc_link.c | 32 +++++++++++++-------------- 1 file changed, 16 insertions(+), 16 deletions(-) diff --git a/drivers/gpu/drm/amd/display/dc/core/dc_link.c b/drivers/gpu/drm/amd/display/dc/core/dc_link.c index 18294df..be9a182 100644 --- a/drivers/gpu/drm/amd/display/dc/core/dc_link.c +++ b/drivers/gpu/drm/amd/display/dc/core/dc_link.c @@ -480,22 +480,6 @@ static void detect_dp( sink_caps->signal = SIGNAL_TYPE_DISPLAY_PORT; detect_dp_sink_caps(link); - /* DP active dongles */ - if (is_dp_active_dongle(link)) { - link->type = dc_connection_active_dongle; - if (!link->dpcd_caps.sink_count.bits.SINK_COUNT) { - /* - * active dongle unplug processing for short irq - */ - link_disconnect_sink(link); - return; - } - - if (link->dpcd_caps.dongle_type != - DISPLAY_DONGLE_DP_HDMI_CONVERTER) { - *converter_disable_audio = true; - } - } if (is_mst_supported(link)) { sink_caps->signal = SIGNAL_TYPE_DISPLAY_PORT_MST; link->type = dc_connection_mst_branch; @@ -535,6 +519,22 @@ static void detect_dp( sink_caps->signal = SIGNAL_TYPE_DISPLAY_PORT; } } + + if (link->type != dc_connection_mst_branch && + is_dp_active_dongle(link)) { + /* DP active dongles */ + link->type = dc_connection_active_dongle; + if (!link->dpcd_caps.sink_count.bits.SINK_COUNT) { + /* + * active dongle unplug processing for short irq + */ + link_disconnect_sink(link); + return; + } + + if (link->dpcd_caps.dongle_type != DISPLAY_DONGLE_DP_HDMI_CONVERTER) + *converter_disable_audio = true; + } } else { /* DP passive dongles */ sink_caps->signal = dp_passive_dongle_detection(link->ddc, -- 2.7.4