[PATCH 03/19] drm/amd/display: Update FCLK change latency

Qingqing Zhuo qingqing.zhuo at amd.com
Fri Mar 24 06:50:55 UTC 2023


From: Alvin Lee <Alvin.Lee2 at amd.com>

[Descrtipion]
- Driver hardcoded FCLK P-State latency was incorrect
- Use the value provided by PMFW header instead

Reviewed-by: Nevenko Stupar <Nevenko.Stupar at amd.com>
Reviewed-by: Jun Lei <Jun.Lei at amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo at amd.com>
Signed-off-by: Alvin Lee <Alvin.Lee2 at amd.com>
---
 drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
index 4e17f2c8d2b7..6ab60facc091 100644
--- a/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn32/dcn32_fpu.c
@@ -131,7 +131,7 @@ struct _vcs_dpi_soc_bounding_box_st dcn3_2_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,
-	.fclk_change_latency_us = 20,
+	.fclk_change_latency_us = 25,
 	.usr_retraining_latency_us = 2,
 	.smn_latency_us = 2,
 	.mall_allocated_for_dcn_mbytes = 64,
-- 
2.34.1



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