From 30fea8821f74b4ffd4aa9ef11114b8a1f1fb10c8 Mon Sep 17 00:00:00 2001
From: Joseph Gravenor <joseph.gravenor@amd.com>
Date: Tue, 12 Nov 2019 17:48:36 -0500
Subject: drm/amd/display: update sr latency for renoir when using lpddr4
Git-commit: e0600a94343cc772b33705015cb8c05bac32bccb
Patch-mainline: v5.6-rc1
References: jsc#SLE-12680, jsc#SLE-12880, jsc#SLE-12882, jsc#SLE-12883, jsc#SLE-13496, jsc#SLE-15322
[Why]
DF team has produced more optimized sr latency numbers, for lpddr4
[How]
change the sr laency in the lpddr4 wm table to the new latency
number
Signed-off-by: Joseph Gravenor <joseph.gravenor@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Patrik Jakobsson <pjakobsson@suse.de>
---
.../amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c | 16 ++++++++--------
1 file changed, 8 insertions(+), 8 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
index f6a26664ee98..de51ef12e33a 100644
--- a/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
+++ b/drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c
@@ -579,32 +579,32 @@ struct wm_table lpddr4_wm_table = {
.wm_inst = WM_A,
.wm_type = WM_TYPE_PSTATE_CHG,
.pstate_latency_us = 11.65333,
- .sr_exit_time_us = 12.5,
- .sr_enter_plus_exit_time_us = 17.0,
+ .sr_exit_time_us = 5.32,
+ .sr_enter_plus_exit_time_us = 6.38,
.valid = true,
},
{
.wm_inst = WM_B,
.wm_type = WM_TYPE_PSTATE_CHG,
.pstate_latency_us = 11.65333,
- .sr_exit_time_us = 12.5,
- .sr_enter_plus_exit_time_us = 17.0,
+ .sr_exit_time_us = 9.82,
+ .sr_enter_plus_exit_time_us = 11.196,
.valid = true,
},
{
.wm_inst = WM_C,
.wm_type = WM_TYPE_PSTATE_CHG,
.pstate_latency_us = 11.65333,
- .sr_exit_time_us = 12.5,
- .sr_enter_plus_exit_time_us = 17.0,
+ .sr_exit_time_us = 9.89,
+ .sr_enter_plus_exit_time_us = 11.24,
.valid = true,
},
{
.wm_inst = WM_D,
.wm_type = WM_TYPE_PSTATE_CHG,
.pstate_latency_us = 11.65333,
- .sr_exit_time_us = 12.5,
- .sr_enter_plus_exit_time_us = 17.0,
+ .sr_exit_time_us = 9.748,
+ .sr_enter_plus_exit_time_us = 11.102,
.valid = true,
},
}
--
2.28.0