From 2b02d746c1818baf741f4eeeff9b97ab4b81e1cf Mon Sep 17 00:00:00 2001 From: Agustin Gutierrez Date: Tue, 21 Feb 2023 16:08:15 -0500 Subject: [PATCH] drm/amd/display: Keep PHY active for dp config [Why] Current hotplug sequence causes temporary hang at the re-entry of the optimized power state. [How] Keep a PHY active when detecting DP signal + DPMS active Reviewed-by: Nicholas Kazlauskas Acked-by: Qingqing Zhuo Signed-off-by: Agustin Gutierrez Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher --- .../gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.c index 89df7244b2728..5cb44f838bde5 100644 --- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.c +++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn314/dcn314_clk_mgr.c @@ -108,6 +108,11 @@ static int dcn314_get_active_display_cnt_wa( stream->signal == SIGNAL_TYPE_DVI_SINGLE_LINK || stream->signal == SIGNAL_TYPE_DVI_DUAL_LINK) tmds_present = true; + + /* Checking stream / link detection ensuring that PHY is active*/ + if (dc_is_dp_signal(stream->signal) && !stream->dpms_off) + display_count++; + } for (i = 0; i < dc->link_count; i++) { -- 2.30.2