drm/amd/display: Enable reallow for idle on DCN35

[Why]
It was previously disabled for stability purposes, but command
submission causes residency issues in IPS video playback.

[How]
Enable the disallow/reallow pattern back. There's additional checks
now in DMCUB that should make this safer stability wise.

Reviewed-by: Duncan Ma <duncan.ma@amd.com>
Acked-by: Wayne Lin <wayne.lin@amd.com>
Signed-off-by: Nicholas Kazlauskas <nicholas.kazlauskas@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/dcn35/dcn35_resource.c b/drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c
index a8f4023ff3b1f3c516b8282055eb776e7bc18a09..49cccf3c0f9c03d97e3afe53ac5c958360ea76dd 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c
+++ b/drivers/gpu/drm/amd/display/dc/resource/dcn35/dcn35_resource.c
@@ -783,7 +783,7 @@ static const struct dc_debug_options debug_defaults_drv = {
        .psp_disabled_wa = true,
        .ips2_eval_delay_us = 2000,
        .ips2_entry_delay_us = 800,
-       .disable_dmub_reallow_idle = true,
+       .disable_dmub_reallow_idle = false,
        .static_screen_wait_frames = 2,
 };