drm/amdgpu: stop psp ring on suspend

Otherwise, the ring will fail to create on next resume.

Signed-off-by: Evan Quan <evan.quan@amd.com>
Reviewed-by: Junwei Zhang <Jerry.Zhang@amd.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Huang Rui <ray.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index abd20819ba6b..0d530524ab21 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -455,6 +455,16 @@ static int psp_hw_fini(void *handle)
 
 static int psp_suspend(void *handle)
 {
+        int ret;
+        struct amdgpu_device *adev = (struct amdgpu_device *)handle;
+        struct psp_context *psp = &adev->psp;
+
+        ret = psp_ring_stop(psp, PSP_RING_TYPE__KM);
+        if (ret) {
+                DRM_ERROR("PSP ring stop failed\n");
+                return ret;
+        }
+
         return 0;
 }