From fa8a4d3659d0c1ad73d5f59b2e0a6d408de5b317 Mon Sep 17 00:00:00 2001 From: Charlene Liu Date: Thu, 5 Sep 2024 17:28:12 -0400 Subject: [PATCH] drm/amd/display: Clear cached watermark after resume [WHY] Driver could skip program watermarks when resume from S0i3/S4. [HOW] Clear the cached one first to make sure new value gets applied. Reviewed-by: Alvin Lee Reviewed-by: Roman Li Signed-off-by: Charlene Liu Signed-off-by: Alex Hung Tested-by: Daniel Wheeler Signed-off-by: Alex Deucher --- drivers/gpu/drm/amd/display/dc/hubbub/dcn35/dcn35_hubbub.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/amd/display/dc/hubbub/dcn35/dcn35_hubbub.c b/drivers/gpu/drm/amd/display/dc/hubbub/dcn35/dcn35_hubbub.c index 6293173ba2b9..5eb3da8d5206 100644 --- a/drivers/gpu/drm/amd/display/dc/hubbub/dcn35/dcn35_hubbub.c +++ b/drivers/gpu/drm/amd/display/dc/hubbub/dcn35/dcn35_hubbub.c @@ -545,6 +545,7 @@ static void hubbub35_init(struct hubbub *hubbub) DCHUBBUB_ARB_MAX_REQ_OUTSTAND, 256, DCHUBBUB_ARB_MIN_REQ_OUTSTAND, 256); + memset(&hubbub2->watermarks.a.cstate_pstate, 0, sizeof(hubbub2->watermarks.a.cstate_pstate)); } /*static void hubbub35_set_request_limit(struct hubbub *hubbub, -- 2.39.5