Commit f9ad396aa803 for kernel

commit f9ad396aa803c34513ac4c93bce42435dfa96b68
Author: Dmytro Laktyushkin <dmytro.laktyushkin@amd.com>
Date:   Fri Jul 3 13:01:12 2026 -0400

    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 <charlene.liu@amd.com>
    Signed-off-by: Dmytro Laktyushkin <dmytro.laktyushkin@amd.com>
    Signed-off-by: George Zhang <george.zhang@amd.com>
    Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
    (cherry picked from commit 183bbded999a70c5996e8f399fa8790568d71112)

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 */