diff options
| -rw-r--r-- | drivers/gpu/drm/vc4/vc4_debugfs.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/drivers/gpu/drm/vc4/vc4_debugfs.c b/drivers/gpu/drm/vc4/vc4_debugfs.c index ba2d8ea562af..d6350a8ca048 100644 --- a/drivers/gpu/drm/vc4/vc4_debugfs.c +++ b/drivers/gpu/drm/vc4/vc4_debugfs.c @@ -3,6 +3,8 @@ * Copyright © 2014 Broadcom */ +#include <drm/drm_drv.h> + #include <linux/seq_file.h> #include <linux/circ_buf.h> #include <linux/ctype.h> @@ -41,11 +43,18 @@ vc4_debugfs_init(struct drm_minor *minor) static int vc4_debugfs_regset32(struct seq_file *m, void *unused) { struct drm_info_node *node = (struct drm_info_node *)m->private; + struct drm_device *drm = node->minor->dev; struct debugfs_regset32 *regset = node->info_ent->data; struct drm_printer p = drm_seq_file_printer(m); + int idx; + + if (!drm_dev_enter(drm, &idx)) + return -ENODEV; drm_print_regset32(&p, regset); + drm_dev_exit(idx); + return 0; } |