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authorDaniel Miess <daniel.miess@amd.com>2024-05-28 16:17:17 -0400
committerAlex Deucher <alexander.deucher@amd.com>2024-06-19 14:17:25 -0400
commitc60e20f13c27662de36cd5538d6299760780db52 (patch)
treed61ccde85780bea928a6413febdbf23ba2989306 /drivers/gpu
parent8bd82363e2ee2eb3a9a8ea1fa94ebe1900d05a71 (diff)
drm/amd/display: Change dram_clock_latency to 34us for dcn351
[Why] Intermittent underflow observed when using 4k144 display on dcn351 [How] Update dram_clock_change_latency_us from 11.72us to 34us Reviewed-by: Nicholas Kazlauskas <nicholas.kazlauskas@amd.com> Acked-by: Zaeem Mohamed <zaeem.mohamed@amd.com> Signed-off-by: Daniel Miess <daniel.miess@amd.com> Tested-by: Daniel Wheeler <daniel.wheeler@amd.com> Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/amd/display/dc/dml/dcn351/dcn351_fpu.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn351/dcn351_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn351/dcn351_fpu.c
index e4f333d4fb54..a201dbb743d7 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn351/dcn351_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn351/dcn351_fpu.c
@@ -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 = 11.72,
+ .dram_clock_change_latency_us = 34,
.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,