From 0c6013377b4027e69d8f3e63b6bf556b6cb87802 Mon Sep 17 00:00:00 2001
From: James Zhu <James.Zhu@amd.com>
Date: Wed, 19 May 2021 11:26:32 -0400
Subject: [PATCH] drm/amdgpu/vcn2.0: add cancel_delayed_work_sync before power gate
Mime-version: 1.0
Content-type: text/plain; charset=UTF-8
Content-transfer-encoding: 8bit
Git-commit: 0c6013377b4027e69d8f3e63b6bf556b6cb87802
Patch-mainline: v5.13-rc4
References: git-fixes
Add cancel_delayed_work_sync before set power gating state
to avoid race condition issue when power gating.
Signed-off-by: James Zhu <James.Zhu@amd.com>
Reviewed-by: Leo Liu <leo.liu@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Acked-by: Takashi Iwai <tiwai@suse.de>
---
drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
index 116b9643d5ba..8af567c546db 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v2_0.c
@@ -262,6 +262,8 @@ static int vcn_v2_0_hw_fini(void *handle)
{
struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+ cancel_delayed_work_sync(&adev->vcn.idle_work);
+
if ((adev->pg_flags & AMD_PG_SUPPORT_VCN_DPG) ||
(adev->vcn.cur_state != AMD_PG_STATE_GATE &&
RREG32_SOC15(VCN, 0, mmUVD_STATUS)))
--
2.26.2