From: Alvin Lee <[email protected]> [Description] - Alt-Ch cannot be enabled until all dependncies are ready (SMU needs to support double p-state + IFWI needs to support G7 regions enabled). - If PMFW enables UCLK DPM without double p-state support and alt-ch is enabled then hangs could occur
Reviewed-by: Dillon Varone <[email protected]> Signed-off-by: Alvin Lee <[email protected]> Signed-off-by: Ivan Lipsi <[email protected]> --- drivers/gpu/drm/amd/display/dc/resource/dcn60/dcn60_resource.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/amd/display/dc/resource/dcn60/dcn60_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn60/dcn60_resource.c index 7171b237c4278..d7947105af223 100644 --- a/drivers/gpu/drm/amd/display/dc/resource/dcn60/dcn60_resource.c +++ b/drivers/gpu/drm/amd/display/dc/resource/dcn60/dcn60_resource.c @@ -671,6 +671,8 @@ static const struct dc_debug_options debug_defaults_drv = { } }, .force_cositing = CHROMA_COSITING_NONE + 1, + .dml21_disable_pstate_method_mask = 0x20, // disable alt-ch unconditionally until dependencies are ready + }; static const struct dc_check_config config_defaults = { -- 2.43.0
