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drm/amd/display: Increase fclk change latency on dcn351

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[Why]
fclk change latency is longer than expected on dcn351.

[How]
Increate fclk change latency from 24us to 32us.

Reviewed-by: Dillon Varone <dillon.varone@amd.com>
Signed-off-by: Sung-huai Wang <Danny.Wang@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Dan Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Sung-huai Wang
2026-07-20 15:14:24 +08:00
committed by Alex Deucher
parent 664431d203
commit ffd67c7561
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/amd/display/dc/dml/dcn351/dcn351_fpu.c
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@@ -206,7 +206,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn3_51_soc = {
.sr_enter_plus_exit_time_us = 30.0,
.sr_exit_z8_time_us = 263.0,
.sr_enter_plus_exit_z8_time_us = 363.0,
.fclk_change_latency_us = 24.0,
.fclk_change_latency_us = 39.0,
.usr_retraining_latency_us = 2,
.writeback_latency_us = 12.0,
@@ -215,7 +215,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn3_51_soc = {
.urgent_latency_pixel_data_only_us = 4.0,
.urgent_latency_pixel_mixed_with_vm_data_us = 4.0,
.urgent_latency_vm_data_only_us = 4.0,
.dram_clock_change_latency_us = 34,
.dram_clock_change_latency_us = 39,
.urgent_out_of_order_return_per_channel_pixel_only_bytes = 4096,
.urgent_out_of_order_return_per_channel_pixel_and_vm_bytes = 4096,
.urgent_out_of_order_return_per_channel_vm_only_bytes = 4096,