1 files changed, 13 insertions, 1 deletions

diff --git a/drivers/gpu/nvgpu/common/linux/ioctl_tsg.c b/drivers/gpu/nvgpu/common/linux/ioctl_tsg.c
index f4972f11..7eea636e 100644
--- a/drivers/gpu/nvgpu/common/linux/ioctl_tsg.c
+++ b/drivers/gpu/nvgpu/common/linux/ioctl_tsg.c
@@ -249,12 +249,24 @@ free_ref:
 int nvgpu_ioctl_tsg_dev_open(struct inode *inode, struct file *filp)
 {
         struct nvgpu_os_linux *l;
+        struct gk20a *g;
         int ret;
 
+        gk20a_dbg_fn("");
+
         l = container_of(inode->i_cdev,
                          struct nvgpu_os_linux, tsg.cdev);
-        gk20a_dbg_fn("");
+        g = &l->g;
+
+        ret = gk20a_busy(g);
+        if (ret) {
+                nvgpu_err(g, "failed to power on, %d", ret);
+                return ret;
+        }
+
         ret = nvgpu_ioctl_tsg_open(&l->g, filp);
+
+        gk20a_idle(g);
         gk20a_dbg_fn("done");
         return ret;
 }