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drm/amd/display: Increase sr enter/exit in rn ddr4 watermark table

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[Why]
After removing added latency for HostVM by default, DDR4 sr exit
latencies were no longer large enough for some panels and caused
underflow.

[How]
Add 1us to sr enter/exit watermark.

Signed-off-by: Wyatt Wood <wyatt.wood@amd.com>
Acked-by: Bindu Ramamurthy <bindu.r@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
This commit is contained in:
Wyatt Wood 2020-11-03 15:07:33 -05:00 committed by Alex Deucher
parent 9a31996081
commit 54e5f12ce5
1 changed files with 2 additions and 2 deletions
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4
drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
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@ -618,8 +618,8 @@ static struct wm_table ddr4_wm_table = {
.wm_inst = WM_A,
.wm_type = WM_TYPE_PSTATE_CHG,
.pstate_latency_us = 11.72,
.sr_exit_time_us = 6.09,
.sr_enter_plus_exit_time_us = 7.14,
.sr_exit_time_us = 7.09,
.sr_enter_plus_exit_time_us = 8.14,
.valid = true,
},
{