drm/amdgpu/vcn:Update ring point to JPEG before init JPEG wptr

It is a bug fix.

Signed-off-by: James Zhu <James.Zhu@amd.com>
Acked-by: Leo Liu <leo.liu@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

diff --git a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
index 775204315888f10332ed0352d0dc4e766262016b..5df6ea9e87e0d3555a06157ad82beafedbaa81d0 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
+++ b/drivers/gpu/drm/amd/amdgpu/vcn_v1_0.c
@@ -1088,7 +1088,8 @@ static int vcn_v1_0_start_dpg_mode(struct amdgpu_device *adev)
        WREG32_P(SOC15_REG_OFFSET(UVD, 0, mmUVD_RBC_RB_CNTL), 0,
                        ~UVD_RBC_RB_CNTL__RB_NO_FETCH_MASK);
 
-       /* initialize wptr */
+       /* initialize JPEG wptr */
+       ring = &adev->vcn.ring_jpeg;
        ring->wptr = RREG32_SOC15(UVD, 0, mmUVD_JRBC_RB_WPTR);
 
        /* copy patch commands to the jpeg ring */