Revert "drm/amd/display: Enable urgent latency adjustments for DCN35"

Revert commit 284f141f5ce5 ("drm/amd/display: Enable urgent latency adjustments for DCN35")

[Why & How]

Urgent latency increase caused  2.8K OLED monitor caused it to
block this panel support P0.

Reverting this change does not reintroduce the netflix corruption issue
which it fixed.

Fixes: 284f141f5ce5 ("drm/amd/display: Enable urgent latency adjustments for DCN35")
Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Signed-off-by: Nicholas Susanto <Nicholas.Susanto@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>
(cherry picked from commit c7ccfc0d4241a834c25a9a9e1e78b388b4445d23)
Cc: stable@vger.kernel.org

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn35/dcn35_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn35/dcn35_fpu.c
index beed7adbbd43e012386be00defd176f3ee32b1f9..47d785204f29cb5a23dd3e74e8c8a7fcab3759ab 100644 (file)
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn35/dcn35_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn35/dcn35_fpu.c
@@ -195,9 +195,9 @@ struct _vcs_dpi_soc_bounding_box_st dcn3_5_soc = {
        .dcn_downspread_percent = 0.5,
        .gpuvm_min_page_size_bytes = 4096,
        .hostvm_min_page_size_bytes = 4096,
-       .do_urgent_latency_adjustment = 1,
+       .do_urgent_latency_adjustment = 0,
        .urgent_latency_adjustment_fabric_clock_component_us = 0,
-       .urgent_latency_adjustment_fabric_clock_reference_mhz = 3000,
+       .urgent_latency_adjustment_fabric_clock_reference_mhz = 0,
 };
 
 void dcn35_build_wm_range_table_fpu(struct clk_mgr *clk_mgr)