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path: root/drivers/gpu/drm/amd/display/dc/dce/dmub_hw_lock_mgr.c
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-rw-r--r--drivers/gpu/drm/amd/display/dc/dce/dmub_hw_lock_mgr.c3
1 files changed, 3 insertions, 0 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 9baf8ca0a920..b1b2e3c6f379 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
@@ -56,8 +56,11 @@ void dmub_hw_lock_mgr_inbox0_cmd(struct dc_dmub_srv *dmub_srv,
union dmub_inbox0_cmd_lock_hw hw_lock_cmd)
{
union dmub_inbox0_data_register data = { 0 };
+
data.inbox0_cmd_lock_hw = hw_lock_cmd;
+ dc_dmub_srv_clear_inbox0_ack(dmub_srv);
dc_dmub_srv_send_inbox0_cmd(dmub_srv, data);
+ dc_dmub_srv_wait_for_inbox0_ack(dmub_srv);
}
bool should_use_dmub_lock(struct dc_link *link)