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drm/amd/display: Temporarily disable HPO PG on DCN35

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[WHY]
On hotpluggin a 4k144 HDMI FRL setup, display fails FRL link training
and falls back to TMDS which is caused by driver not ungating HPO before
doing FRL link training.

[HOW]
Enable debug flag to disable HPO power gate in DCN35

Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Signed-off-by: Alex Hung <alex.hung@amd.com>
Signed-off-by: Nicholas Susanto <nicholas.susanto@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Nicholas Susanto
2024-06-07 14:39:01 -04:00
committed by Alex Deucher
parent 748bd8ebae
commit 6e3eb27667
1 changed files with 1 additions and 1 deletions
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drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c
+1 -1
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@@ -721,7 +721,7 @@ static const struct dc_debug_options debug_defaults_drv = {
.disable_dpp_power_gate = true,
.disable_hubp_power_gate = true,
.disable_optc_power_gate = true, /*should the same as above two*/
.disable_hpo_power_gate = false, /*dmubfw force domain25 on*/
.disable_hpo_power_gate = true, /*dmubfw force domain25 on*/
.disable_clock_gate = false,
.disable_dsc_power_gate = true,
.vsr_support = true,