From: Nikola Cornij <nikola.cornij@amd.com>
Date: Fri, 1 Oct 2021 17:26:05 +0000 (-0400)
Subject: drm/amd/display: Increase watermark latencies for DCN3.1
X-Git-Tag: v6.1-rc5~2647^2~13^2~38
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=aacdc9d07ecd2d119229dbd59784c7aea4f3aed3;p=platform%2Fkernel%2Flinux-starfive.git

drm/amd/display: Increase watermark latencies for DCN3.1

[why]
The original latencies were causing underflow in some modes

[how]
Replace with the up-to-date watermark values based on new measurments

Reviewed-by: Ahmad Othman <ahmad.othman@amd.com>
Acked-by: Agustin Gutierrez Sanchez <agustin.gutierrez@amd.com>
Signed-off-by: Nikola Cornij <nikola.cornij@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c
index 3fae1f1..0088dff 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn31/dcn31_clk_mgr.c
@@ -371,32 +371,32 @@ static struct wm_table lpddr5_wm_table = {
 			.wm_inst = WM_A,
 			.wm_type = WM_TYPE_PSTATE_CHG,
 			.pstate_latency_us = 11.65333,
-			.sr_exit_time_us = 5.32,
-			.sr_enter_plus_exit_time_us = 6.38,
+			.sr_exit_time_us = 11.5,
+			.sr_enter_plus_exit_time_us = 14.5,
 			.valid = true,
 		},
 		{
 			.wm_inst = WM_B,
 			.wm_type = WM_TYPE_PSTATE_CHG,
 			.pstate_latency_us = 11.65333,
-			.sr_exit_time_us = 9.82,
-			.sr_enter_plus_exit_time_us = 11.196,
+			.sr_exit_time_us = 11.5,
+			.sr_enter_plus_exit_time_us = 14.5,
 			.valid = true,
 		},
 		{
 			.wm_inst = WM_C,
 			.wm_type = WM_TYPE_PSTATE_CHG,
 			.pstate_latency_us = 11.65333,
-			.sr_exit_time_us = 9.89,
-			.sr_enter_plus_exit_time_us = 11.24,
+			.sr_exit_time_us = 11.5,
+			.sr_enter_plus_exit_time_us = 14.5,
 			.valid = true,
 		},
 		{
 			.wm_inst = WM_D,
 			.wm_type = WM_TYPE_PSTATE_CHG,
 			.pstate_latency_us = 11.65333,
-			.sr_exit_time_us = 9.748,
-			.sr_enter_plus_exit_time_us = 11.102,
+			.sr_exit_time_us = 11.5,
+			.sr_enter_plus_exit_time_us = 14.5,
 			.valid = true,
 		},
 	}