diff options
| author | Laura Abbott <labbott@redhat.com> | 2017-05-04 11:45:46 -0700 |
|---|---|---|
| committer | Daniel Vetter <daniel.vetter@ffwll.ch> | 2017-05-08 09:39:13 +0200 |
| commit | e2aff44868ae60eccae806d3751077155675c2a4 (patch) | |
| tree | e8fc71680fb79d13077231252f2d4564cb478c7d /drivers/gpu/drm/vgem | |
| parent | f424f55e31779bdc2389db9115fca65c553f8558 (diff) | |
| download | op-kernel-dev-e2aff44868ae60eccae806d3751077155675c2a4.zip op-kernel-dev-e2aff44868ae60eccae806d3751077155675c2a4.tar.gz | |
drm/vgem: Add a dummy platform device
The vgem driver is currently registered independent of any actual
device. Some usage of the dmabuf APIs require an actual device structure
to do anything. Register a dummy platform device for use with dmabuf.
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Laura Abbott <labbott@redhat.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1493923548-20878-2-git-send-email-labbott@redhat.com
Diffstat (limited to 'drivers/gpu/drm/vgem')
| -rw-r--r-- | drivers/gpu/drm/vgem/vgem_drv.c | 19 |
1 files changed, 16 insertions, 3 deletions
diff --git a/drivers/gpu/drm/vgem/vgem_drv.c b/drivers/gpu/drm/vgem/vgem_drv.c index 9fee38a..d1d98af 100644 --- a/drivers/gpu/drm/vgem/vgem_drv.c +++ b/drivers/gpu/drm/vgem/vgem_drv.c @@ -42,6 +42,8 @@ #define DRIVER_MAJOR 1 #define DRIVER_MINOR 0 +static struct platform_device *vgem_platform; + static void vgem_gem_free_object(struct drm_gem_object *obj) { struct drm_vgem_gem_object *vgem_obj = to_vgem_bo(obj); @@ -335,11 +337,20 @@ static int __init vgem_init(void) int ret; vgem_device = drm_dev_alloc(&vgem_driver, NULL); - if (IS_ERR(vgem_device)) { - ret = PTR_ERR(vgem_device); + if (IS_ERR(vgem_device)) + return PTR_ERR(vgem_device); + + vgem_platform = platform_device_register_simple("vgem", + -1, NULL, 0); + + if (!vgem_platform) { + ret = -ENODEV; goto out; } + dma_coerce_mask_and_coherent(&vgem_platform->dev, + DMA_BIT_MASK(64)); + ret = drm_dev_register(vgem_device, 0); if (ret) goto out_unref; @@ -347,13 +358,15 @@ static int __init vgem_init(void) return 0; out_unref: - drm_dev_unref(vgem_device); + platform_device_unregister(vgem_platform); out: + drm_dev_unref(vgem_device); return ret; } static void __exit vgem_exit(void) { + platform_device_unregister(vgem_platform); drm_dev_unregister(vgem_device); drm_dev_unref(vgem_device); } |
