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| author | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-15 08:43:49 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-03-15 08:43:49 +0100 |
| commit | 280def1e1c17d35b21206881937d4498bcc1f503 (patch) | |
| tree | 6e40d88144f06dce56338c60073b85b36207f1ef /drivers/gpu/drm/udl/udl_drv.c | |
| parent | 3d82be8be6fdf38543fa3ae9c35beda4a8a8d067 (diff) | |
| parent | 1e28eed17697bcf343c6743f0028cc3b5dd88bf0 (diff) | |
| download | linux-280def1e1c17d35b21206881937d4498bcc1f503.tar.gz linux-280def1e1c17d35b21206881937d4498bcc1f503.tar.bz2 linux-280def1e1c17d35b21206881937d4498bcc1f503.zip | |
Merge 5.12-rc3 into tty-next
Resolves a merge issue with:
drivers/tty/hvc/hvcs.c
and we want the tty/serial fixes from 5.12-rc3 in here as well.
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/gpu/drm/udl/udl_drv.c')
| -rw-r--r-- | drivers/gpu/drm/udl/udl_drv.c | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/gpu/drm/udl/udl_drv.c b/drivers/gpu/drm/udl/udl_drv.c index 9269092697d8..5703277c6f52 100644 --- a/drivers/gpu/drm/udl/udl_drv.c +++ b/drivers/gpu/drm/udl/udl_drv.c @@ -32,6 +32,22 @@ static int udl_usb_resume(struct usb_interface *interface) return drm_mode_config_helper_resume(dev); } +/* + * FIXME: Dma-buf sharing requires DMA support by the importing device. + * This function is a workaround to make USB devices work as well. + * See todo.rst for how to fix the issue in the dma-buf framework. + */ +static struct drm_gem_object *udl_driver_gem_prime_import(struct drm_device *dev, + struct dma_buf *dma_buf) +{ + struct udl_device *udl = to_udl(dev); + + if (!udl->dmadev) + return ERR_PTR(-ENODEV); + + return drm_gem_prime_import_dev(dev, dma_buf, udl->dmadev); +} + DEFINE_DRM_GEM_FOPS(udl_driver_fops); static const struct drm_driver driver = { @@ -40,6 +56,7 @@ static const struct drm_driver driver = { /* GEM hooks */ .fops = &udl_driver_fops, DRM_GEM_SHMEM_DRIVER_OPS, + .gem_prime_import = udl_driver_gem_prime_import, .name = DRIVER_NAME, .desc = DRIVER_DESC, |