From f9ad396aa803c34513ac4c93bce42435dfa96b68 Mon Sep 17 00:00:00 2001 From: Dmytro Laktyushkin Date: Fri, 3 Jul 2026 13:01:12 -0400 Subject: [PATCH] drm/amd/display: fix dcn42b det allocation order set_pipe_unlock_order needs to be set to true for the pipes to be unlocked in correct order to avoid det overallocation Reviewed-by: Charlene Liu Signed-off-by: Dmytro Laktyushkin Signed-off-by: George Zhang Signed-off-by: Alex Deucher (cherry picked from commit 183bbded999a70c5996e8f399fa8790568d71112) --- drivers/gpu/drm/amd/display/dc/resource/dcn42b/dcn42b_resource.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn42b/dcn42b_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn42b/dcn42b_resource.c index 1a3b9e942caa..e9c33e3466ea 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn42b/dcn42b_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn42b/dcn42b_resource.c @@ -2105,6 +2105,7 @@ static bool dcn42b_resource_construct( dc->config.use_pipe_ctx_sync_logic = true; dc->config.dc_mode_clk_limit_support = false; dc->config.enable_windowed_mpo_odm = true; + dc->config.set_pipe_unlock_order = true; /* Need to ensure DET gets freed before allocating */ /* Use psp mailbox to enable assr */ dc->config.use_assr_psp_message = true; /* dcn42 and afterward always support external panel replay */