drm/amd/display: fix dcn42 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: Taimur Hassan <syed.hassan@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 198663d035cc439eb48844a2da66f6ae1b0de303)

diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn42/dcn42_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn42/dcn42_resource.c
index 7de12b16d7ade42181e8002bb0747e88fe16321f..a8241036def2b7303e27583ffcc0cd8f92cae15b 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/resource/dcn42/dcn42_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/resource/dcn42/dcn42_resource.c
@@ -2142,6 +2142,7 @@ static bool dcn42_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 */