From: Lewis Huang <Lewis.Huang@amd.com>
Date: Fri, 20 Dec 2019 06:17:54 +0000 (+0800)
Subject: drm/amd/display: remove psr state condition when psr exit case
X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=6e0ca5ca83bef235778cbf16af37f58b93650dd6;p=linux.git

drm/amd/display: remove psr state condition when psr exit case

[Why]
DMCU need to wait a vblank to handle psr enter command. When psr exit
coming before vblank, the psr exit command will be skip because current
psr state is disable.

[How]
remove psr state condition when psr exit case

Signed-off-by: Lewis Huang <Lewis.Huang@amd.com>
Reviewed-by: Tony Cheng <Tony.Cheng@amd.com>
Acked-by: Harry Wentland <harry.wentland@amd.com>
Acked-by: Rodrigo Siqueira <Rodrigo.Siqueira@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
---

diff --git a/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c b/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c
index e619e67e6b513..30d953acd0161 100644
--- a/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c
+++ b/drivers/gpu/drm/amd/display/dc/dce/dce_dmcu.c
@@ -537,9 +537,6 @@ static void dcn10_dmcu_set_psr_enable(struct dmcu *dmcu, bool enable, bool wait)
 	if (dmcu->dmcu_state != DMCU_RUNNING)
 		return;
 
-	dcn10_get_dmcu_psr_state(dmcu, &psr_state);
-	if (psr_state == 0 && !enable)
-		return;
 	/* waitDMCUReadyForCmd */
 	REG_WAIT(MASTER_COMM_CNTL_REG, MASTER_COMM_INTERRUPT, 0,
 				dmcu_wait_reg_ready_interval,