1 files changed, 3 insertions, 0 deletions

diff --git a/drivers/gpu/drm/ast/ast_drv.c b/drivers/gpu/drm/ast/ast_drv.c
index d0c4574ef49c..36164806b9d4 100644
--- a/drivers/gpu/drm/ast/ast_drv.c
+++ b/drivers/gpu/drm/ast/ast_drv.c
@@ -193,6 +193,9 @@ static const struct file_operations ast_fops = {
         .mmap = ast_mmap,
         .poll = drm_poll,
         .fasync = drm_fasync,
+#ifdef CONFIG_COMPAT
+        .compat_ioctl = drm_compat_ioctl,
+#endif
         .read = drm_read,
 };