gpu: nvgpu: update name for gpu debugfs node

Create constant name for gpu debugfs node across all chip.

Bug n/a

Change-Id: I359b82b5389c49d8fe2a31ace49ff6daa1edfb10
Signed-off-by: Mahantesh Kumbar <mkumbar@nvidia.com>
Signed-off-by: Terje Bergstrom <tbergstrom@nvidia.com>
Reviewed-on: http://git-master/r/805397
Signed-off-by: Seema Khowala <seemaj@nvidia.com>
(cherry-picked from commit 17a3882cde09412c68f7a0ee4765f45be1a51c45)
Reviewed-on: http://git-master/r/817014

3 files changed, 6 insertions, 0 deletions

diff --git a/drivers/gpu/nvgpu/gk20a/debug_gk20a.c b/drivers/gpu/nvgpu/gk20a/debug_gk20a.c
index 1cac683d..67434e7f 100644
--- a/drivers/gpu/nvgpu/gk20a/debug_gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/debug_gk20a.c
@@ -410,6 +410,10 @@ void gk20a_debug_init(struct platform_device *pdev)
                 gk20a_device = pdev;
 
         platform->debugfs = debugfs_create_dir(pdev->name, NULL);
+        if (platform->debugfs) {
+                platform->debugfs_alias =
+                        debugfs_create_symlink("gpu.0", NULL, pdev->name);
+        }
 
         debugfs_create_file("status", S_IRUGO, platform->debugfs,
                         pdev, &gk20a_debug_fops);
diff --git a/drivers/gpu/nvgpu/gk20a/gk20a.c b/drivers/gpu/nvgpu/gk20a/gk20a.c
index a97ec735..dfc7d34c 100644
--- a/drivers/gpu/nvgpu/gk20a/gk20a.c
+++ b/drivers/gpu/nvgpu/gk20a/gk20a.c
@@ -1562,6 +1562,7 @@ static int __exit gk20a_remove(struct platform_device *dev)
         gk20a_user_deinit(dev);
 
         debugfs_remove_recursive(platform->debugfs);
+        debugfs_remove_recursive(platform->debugfs_alias);
 
         gk20a_remove_sysfs(&dev->dev);
 
diff --git a/drivers/gpu/nvgpu/gk20a/platform_gk20a.h b/drivers/gpu/nvgpu/gk20a/platform_gk20a.h
index 7314d09d..b7a28ea5 100644
--- a/drivers/gpu/nvgpu/gk20a/platform_gk20a.h
+++ b/drivers/gpu/nvgpu/gk20a/platform_gk20a.h
@@ -49,6 +49,7 @@ struct gk20a_platform {
 
         /* Should be populated by probe. */
         struct dentry *debugfs;
+        struct dentry *debugfs_alias;
 
         /* Clock configuration is stored here. Platform probe is responsible
          * for filling this data. */