From: Zhan Liu zhan.liu@amd.com

[ Upstream commit ac46d93235074a6c5d280d35771c23fd8620e7d9 ]

[Why] DCN301 has seamless boot enabled. With MPC split enabled at the same time, system will hang.

[How] Revert MPC split policy back to "MPC_SPLIT_AVOID". Since we have ODM combine enabled on DCN301, pipe split is not necessary here.

Signed-off-by: Zhan Liu zhan.liu@amd.com Reviewed-by: Charlene Liu charlene.liu@amd.com Signed-off-by: Alex Deucher alexander.deucher@amd.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c b/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c index e472b729d8690..8af80bc05b364 100644 --- a/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c +++ b/drivers/gpu/drm/amd/display/dc/dcn301/dcn301_resource.c @@ -686,7 +686,7 @@ static const struct dc_debug_options debug_defaults_drv = { .disable_clock_gate = true, .disable_pplib_clock_request = true, .disable_pplib_wm_range = true, - .pipe_split_policy = MPC_SPLIT_DYNAMIC, + .pipe_split_policy = MPC_SPLIT_AVOID, .force_single_disp_pipe_split = false, .disable_dcc = DCC_ENABLE, .vsr_support = true,