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drm/amd/display: disable power gating for DCN314

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[Why]
Power gating is causing error messages on some DCN314 systems

[How]
Force disable power gating for DCN314

Fixes: 4cc1cebe08 ("drm/amd/display: Re-enable DPP/HUBP Power Gating")
Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com>
Acked-by: Hamza Mahfooz <hamza.mahfooz@amd.com>
Signed-off-by: Daniel Miess <daniel.miess@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Daniel Miess
2023-06-14 13:09:14 -04:00
committed by Alex Deucher
parent acbe761046
commit 65dae8ff4c
1 changed files with 5 additions and 7 deletions
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12
drivers/gpu/drm/amd/display/dc/dcn314/dcn314_resource.c
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@@ -1883,13 +1883,6 @@ static bool dcn314_resource_construct(
/* Use pipe context based otg sync logic */
dc->config.use_pipe_ctx_sync_logic = true;
/* Disable pipe power gating when unsupported */
if (ctx->asic_id.hw_internal_rev == 0x01 ||
ctx->asic_id.hw_internal_rev == 0x80) {
dc->debug.disable_dpp_power_gate = true;
dc->debug.disable_hubp_power_gate = true;
}
/* read VBIOS LTTPR caps */
{
if (ctx->dc_bios->funcs->get_lttpr_caps) {
@@ -1910,6 +1903,11 @@ static bool dcn314_resource_construct(
dc->debug = debug_defaults_drv;
else
dc->debug = debug_defaults_diags;
/* Disable pipe power gating */
dc->debug.disable_dpp_power_gate = true;
dc->debug.disable_hubp_power_gate = true;
// Init the vm_helper
if (dc->vm_helper)
vm_helper_init(dc->vm_helper, 16);