linux-kernel - [PATCH AUTOSEL 5.15 122/153] drm/amd/display: Initial psr

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Message-Id: <20250505231320.2695319-122-sashal@kernel.org>
Date: Mon,  5 May 2025 19:12:49 -0400
From: Sasha Levin <sashal@...nel.org>
To: linux-kernel@...r.kernel.org,
	stable@...r.kernel.org
Cc: Tom Chung <chiahsuan.chung@....com>,
	Roman Li <roman.li@....com>,
	Zaeem Mohamed <zaeem.mohamed@....com>,
	Daniel Wheeler <daniel.wheeler@....com>,
	Alex Deucher <alexander.deucher@....com>,
	Sasha Levin <sashal@...nel.org>,
	harry.wentland@....com,
	sunpeng.li@....com,
	christian.koenig@....com,
	airlied@...il.com,
	simona@...ll.ch,
	siqueira@...lia.com,
	alex.hung@....com,
	alvin.lee2@....com,
	aurabindo.pillai@....com,
	Austin.Zheng@....com,
	Ilya.Bakoulin@....com,
	mario.limonciello@....com,
	Wayne.Lin@....com,
	Josip.Pavic@....com,
	dillon.varone@....com,
	wenjing.liu@....com,
	linux@...blig.org,
	amd-gfx@...ts.freedesktop.org,
	dri-devel@...ts.freedesktop.org
Subject: [PATCH AUTOSEL 5.15 122/153] drm/amd/display: Initial psr_version with correct setting

From: Tom Chung <chiahsuan.chung@....com>

[ Upstream commit d8c782cac5007e68e7484d420168f12d3490def6 ]

[Why & How]
The initial setting for psr_version is not correct while
create a virtual link.

The default psr_version should be DC_PSR_VERSION_UNSUPPORTED.

Reviewed-by: Roman Li <roman.li@....com>
Signed-off-by: Tom Chung <chiahsuan.chung@....com>
Signed-off-by: Zaeem Mohamed <zaeem.mohamed@....com>
Tested-by: Daniel Wheeler <daniel.wheeler@....com>
Signed-off-by: Alex Deucher <alexander.deucher@....com>
Signed-off-by: Sasha Levin <sashal@...nel.org>
---
 drivers/gpu/drm/amd/display/dc/core/dc.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/amd/display/dc/core/dc.c b/drivers/gpu/drm/amd/display/dc/core/dc.c
index d3d638252e2b9..e1085c316b78e 100644
--- a/drivers/gpu/drm/amd/display/dc/core/dc.c
+++ b/drivers/gpu/drm/amd/display/dc/core/dc.c
@@ -248,6 +248,7 @@ static bool create_links(
 		link->link_id.type = OBJECT_TYPE_CONNECTOR;
 		link->link_id.id = CONNECTOR_ID_VIRTUAL;
 		link->link_id.enum_id = ENUM_ID_1;
+		link->psr_settings.psr_version = DC_PSR_VERSION_UNSUPPORTED;
 		link->link_enc = kzalloc(sizeof(*link->link_enc), GFP_KERNEL);
 
 		if (!link->link_enc) {
-- 
2.39.5