drm/amd/display: Disable hpo power gate

[Why & How]
Disable HPO power gate temporarily to
work around some DP 2 LL compliance failures on DCN42.

Reviewed-by: Roman Li <roman.li@amd.com>
Signed-off-by: Leo Chen <leo.chen@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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 acd76269abb425a6d1a9905a82bddac3d311f961..ce26816b3e65cd72ee0b6c1380eaf0fb7956a611 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
@@ -700,6 +700,7 @@ static const struct dc_debug_options debug_defaults_drv = {
        .disable_optc_power_gate = false,
        .disable_dsc_power_gate = false,
        .disable_dio_power_gate = true,
+       .disable_hpo_power_gate = true,
        .pipe_split_policy = MPC_SPLIT_AVOID,
        .force_single_disp_pipe_split = false,
        .disable_dcc = DCC_ENABLE,