From: jsg <jsg@openbsd.org>
Date: Fri, 28 Jul 2023 06:45:27 +0000 (+0000)
Subject: drm/amd/display: Keep PHY active for DP displays on DCN31
X-Git-Url: http://artulab.com/gitweb/?a=commitdiff_plain;h=f818947a4e715748a83ffbbf057b05296cf22a8c;p=openbsd

drm/amd/display: Keep PHY active for DP displays on DCN31

From Nicholas Kazlauskas
b9741ba942f3f2c36de96241dfaf2dbbd3b5c826 in linux-6.1.y/6.1.42
2387ccf43e3c6cb5dbd757c5ef410cca9f14b971 in mainline linux
---

diff --git a/sys/dev/pci/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c b/sys/dev/pci/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c
index c1eaf571407..9f593eddb6b 100644
--- a/sys/dev/pci/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c
+++ b/sys/dev/pci/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c
@@ -86,6 +86,11 @@ static int dcn31_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++) {