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authorWyatt Wood <wyatt.wood@amd.com>2020-11-03 15:07:33 -0500
committerAlex Deucher <alexander.deucher@amd.com>2020-11-16 12:20:01 -0500
commit54e5f12ce530dd260722033ed9756fb107972a3f (patch)
tree26556d67c23f702a81a15d321078bc7b6f987f85 /drivers/gpu/drm/amd/display
parent9a31996081d7ee998aa789742329c3433396c90c (diff)
drm/amd/display: Increase sr enter/exit in rn ddr4 watermark table
[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>
Diffstat (limited to 'drivers/gpu/drm/amd/display')
-rw-r--r--drivers/gpu/drm/amd/display/dc/clk_mgr/dcn21/rn_clk_mgr.c4
1 files changed, 2 insertions, 2 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 8d8ee4b9fee1..458dab9e813b 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
@@ -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,
},
{