[PATCH 1/3] drm/amd/display: remove cursor hack for S3

[Pratik Vishwakarma]

cursor_bo operations cause crash during S3 entry.

On cursor movement between displays during S3 cycles
the system crashes on S3 entry.

These crashes are no more seen with this patch applied.

Also as per the comment just above the code that this
patch removes
"IN 4.10 kernel this code should be removed and
amdgpu_device_suspend code touching fram buffers
should be avoided for DC"

Signed-off-by: Pratik Vishwakarma <Pratik.Vishwakarma at amd.com>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c | 11 -----------
 1 file changed, 11 deletions(-)

diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
index a2009d5..8c31abf 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -3138,17 +3138,6 @@ static int dm_plane_helper_prepare_fb(struct drm_plane *plane,
 		}
 	}
 
-	/* It's a hack for s3 since in 4.9 kernel filter out cursor buffer
-	 * prepare and cleanup in drm_atomic_helper_prepare_planes
-	 * and drm_atomic_helper_cleanup_planes because fb doens't in s3.
-	 * IN 4.10 kernel this code should be removed and amdgpu_device_suspend
-	 * code touching fram buffers should be avoided for DC.
-	 */
-	if (plane->type == DRM_PLANE_TYPE_CURSOR) {
-		struct amdgpu_crtc *acrtc = to_amdgpu_crtc(new_state->crtc);
-
-		acrtc->cursor_bo = obj;
-	}
 	return 0;
 }
 
-- 
1.9.1