drm/amd/display: Change blackout time to 0 on CZ/ST

These should only be non-0 if big hammer w/a is implemented. Currently
DC doesn't implement it, so leave them 0.

Signed-off-by: Harry Wentland <harry.wentland@amd.com>
Reviewed-by: Charlene Liu <Charlene.Liu@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c b/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c
index bb03a9c..6d38b8f 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c
+++ b/drivers/gpu/drm/amd/display/dc/calcs/dce_calcs.c
@@ -2033,8 +2033,8 @@ void bw_calcs_init(struct bw_calcs_dceip *bw_dceip,
                vbios.cursor_width = 32;
                vbios.average_compression_rate = 4;
                vbios.number_of_request_slots_gmc_reserves_for_dmif_per_channel = 256;
-               vbios.blackout_duration = bw_int_to_fixed(18); /* us */
-               vbios.maximum_blackout_recovery_time = bw_int_to_fixed(20);
+               vbios.blackout_duration = bw_int_to_fixed(0); /* us */
+               vbios.maximum_blackout_recovery_time = bw_int_to_fixed(0);
 
                dceip.large_cursor = false;
                dceip.dmif_request_buffer_size = bw_int_to_fixed(768);
@@ -2366,8 +2366,8 @@ void bw_calcs_init(struct bw_calcs_dceip *bw_dceip,
                vbios.cursor_width = 32;
                vbios.average_compression_rate = 4;
                vbios.number_of_request_slots_gmc_reserves_for_dmif_per_channel = 256;
-               vbios.blackout_duration = bw_int_to_fixed(18); /* us */
-               vbios.maximum_blackout_recovery_time = bw_int_to_fixed(20);
+               vbios.blackout_duration = bw_int_to_fixed(0); /* us */
+               vbios.maximum_blackout_recovery_time = bw_int_to_fixed(0);
 
                dceip.large_cursor = false;
                dceip.dmif_request_buffer_size = bw_int_to_fixed(768);