drm/amdgpu: Remove unused function amdgpu_bo_fbdev_mmap()

Remove an unused function. Mapping the fbdev framebuffer is apparently
not supported.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/amd/amdgpu/amdgpu_object.c

@@ -1129,25 +1129,6 @@ void amdgpu_bo_fini(struct amdgpu_device *adev)
 	}
 }
 
-/**
- * amdgpu_bo_fbdev_mmap - mmap fbdev memory
- * @bo: &amdgpu_bo buffer object
- * @vma: vma as input from the fbdev mmap method
- *
- * Calls ttm_fbdev_mmap() to mmap fbdev memory if it is backed by a bo.
- *
- * Returns:
- * 0 for success or a negative error code on failure.
- */
-int amdgpu_bo_fbdev_mmap(struct amdgpu_bo *bo,
-			     struct vm_area_struct *vma)
-{
-	if (vma->vm_pgoff != 0)
-		return -EACCES;
-
-	return ttm_bo_mmap_obj(vma, &bo->tbo);
-}
-
 /**
  * amdgpu_bo_set_tiling_flags - set tiling flags
  * @bo: &amdgpu_bo buffer object

drivers/gpu/drm/amd/amdgpu/amdgpu_object.h

@@ -279,8 +279,6 @@ void amdgpu_bo_unpin(struct amdgpu_bo *bo);
 int amdgpu_bo_evict_vram(struct amdgpu_device *adev);
 int amdgpu_bo_init(struct amdgpu_device *adev);
 void amdgpu_bo_fini(struct amdgpu_device *adev);
-int amdgpu_bo_fbdev_mmap(struct amdgpu_bo *bo,
-				struct vm_area_struct *vma);
 int amdgpu_bo_set_tiling_flags(struct amdgpu_bo *bo, u64 tiling_flags);
 void amdgpu_bo_get_tiling_flags(struct amdgpu_bo *bo, u64 *tiling_flags);
 int amdgpu_bo_set_metadata (struct amdgpu_bo *bo, void *metadata,