From: Tom Chung <chiahsuan.ch...@amd.com>

[ Upstream commit f245b400a223a71d6d5f4c72a2cb9b573a7fc2b6 ]

This reverts commit
a2b5a9956269 ("drm/amd/display: Use HW lock mgr for PSR1")

Because it may cause system hang while connect with two edp panel.

Acked-by: Wayne Lin <wayne....@amd.com>
Signed-off-by: Tom Chung <chiahsuan.ch...@amd.com>
Signed-off-by: Alex Deucher <alexander.deuc...@amd.com>
Signed-off-by: Sasha Levin <sas...@kernel.org>
---
 drivers/gpu/drm/amd/display/dc/dce/dmub_hw_lock_mgr.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dce/dmub_hw_lock_mgr.c 
b/drivers/gpu/drm/amd/display/dc/dce/dmub_hw_lock_mgr.c
index f11b071a896f5..2aa0e01a6891b 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dmub_hw_lock_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dmub_hw_lock_mgr.c
@@ -63,8 +63,7 @@ void dmub_hw_lock_mgr_inbox0_cmd(struct dc_dmub_srv *dmub_srv,
 
 bool should_use_dmub_lock(struct dc_link *link)
 {
-       if (link->psr_settings.psr_version == DC_PSR_VERSION_SU_1 ||
-           link->psr_settings.psr_version == DC_PSR_VERSION_1)
+       if (link->psr_settings.psr_version == DC_PSR_VERSION_SU_1)
                return true;
        return false;
 }
-- 
2.39.5

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