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From 4e4d0c0c52b00ff395947c3a7411c1b1371171c3 Mon Sep 17 00:00:00 2001
From: James Zhu <James.Zhu@amd.com>
Date: Tue, 9 Oct 2018 17:06:56 -0400
Subject: [PATCH 0527/2940] drm/amdgpu/vcn:Update SPG mode UVD status clear

Update Static Power Gate mode UVD status clear

Signed-off-by: James Zhu <James.Zhu@amd.com>
Acked-by: Leo Liu <leo.liu@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
---
 drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
index d8fe14d43db0..bc6470668057 100644
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
@@ -883,9 +883,9 @@ static int vcn_v1_0_start_spg_mode(struct amdgpu_device *adev)
 		UVD_SYS_INT_EN__UVD_JRBC_EN_MASK,
 		~UVD_SYS_INT_EN__UVD_JRBC_EN_MASK);
 
-	/* clear the bit 4 of VCN_STATUS */
-	WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_STATUS), 0,
-			~(2 << UVD_STATUS__VCPU_REPORT__SHIFT));
+	/* clear the busy bit of UVD_STATUS */
+	tmp = RREG32_SOC15(UVD, 0, mmUVD_STATUS) & ~UVD_STATUS__UVD_BUSY;
+	WREG32_SOC15(UVD, 0, mmUVD_STATUS, tmp);
 
 	/* force RBC into idle state */
 	rb_bufsz = order_base_2(ring->ring_size);
-- 
2.17.1