drm: Add a few missing descriptions in drm_driver docs

Fixes the following warnings when building docs:
../include/drm/drm_drv.h:553: warning: No description found for parameter 'debugfs_init'
../include/drm/drm_drv.h:553: warning: No description found for parameter 'gem_open_object'
../include/drm/drm_drv.h:553: warning: No description found for parameter 'gem_close_object'
../include/drm/drm_drv.h:553: warning: No description found for parameter 'prime_handle_to_fd'
../include/drm/drm_drv.h:553: warning: No description found for parameter 'prime_fd_to_handle'
../include/drm/drm_drv.h:553: warning: No description found for parameter 'gem_prime_export'
../include/drm/drm_drv.h:553: warning: No description found for parameter 'gem_prime_import'
../include/drm/drm_drv.h:553: warning: No description found for parameter 'gem_vm_ops'
../include/drm/drm_drv.h:553: warning: No description found for parameter 'major'
../include/drm/drm_drv.h:553: warning: No description found for parameter 'minor'
../include/drm/drm_drv.h:553: warning: No description found for parameter 'patchlevel'
../include/drm/drm_drv.h:553: warning: No description found for parameter 'name'
../include/drm/drm_drv.h:553: warning: No description found for parameter 'desc'
../include/drm/drm_drv.h:553: warning: No description found for parameter 'date'
../include/drm/drm_drv.h:553: warning: No description found for parameter 'driver_features'

There are still a couple more warnings for prime helpers that are
documented elsewhere.

Signed-off-by: Sean Paul <seanpaul@chromium.org>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Thierry Reding <treding@nvidia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170720174746.29100-5-seanpaul@chromium.org

diff --git a/include/drm/drm_drv.h b/include/drm/drm_drv.h
index 81971dc..505c913 100644 (file)
--- a/include/drm/drm_drv.h
+++ b/include/drm/drm_drv.h
@@ -390,6 +390,11 @@ struct drm_driver {
         */
        void (*master_drop)(struct drm_device *dev, struct drm_file *file_priv);
 
+       /**
+        * @debugfs_init:
+        *
+        * Allows drivers to create driver-specific debugfs files.
+        */
        int (*debugfs_init)(struct drm_minor *minor);
 
        /**
@@ -408,7 +413,18 @@ struct drm_driver {
         */
        void (*gem_free_object_unlocked) (struct drm_gem_object *obj);
 
+       /**
+        * @gem_open_object:
+        *
+        * Driver hook called upon gem handle creation
+        */
        int (*gem_open_object) (struct drm_gem_object *, struct drm_file *);
+
+       /**
+        * @gem_close_object:
+        *
+        * Driver hook called upon gem handle release
+        */
        void (*gem_close_object) (struct drm_gem_object *, struct drm_file *);
 
        /**
@@ -421,19 +437,34 @@ struct drm_driver {
                                                    size_t size);
 
        /* prime: */
-       /* export handle -> fd (see drm_gem_prime_handle_to_fd() helper) */
+       /**
+        * @prime_handle_to_fd:
+        *
+        * export handle -> fd (see drm_gem_prime_handle_to_fd() helper)
+        */
        int (*prime_handle_to_fd)(struct drm_device *dev, struct drm_file *file_priv,
                                uint32_t handle, uint32_t flags, int *prime_fd);
-       /* import fd -> handle (see drm_gem_prime_fd_to_handle() helper) */
+       /**
+        * @prime_fd_to_handle:
+        *
+        * import fd -> handle (see drm_gem_prime_fd_to_handle() helper)
+        */
        int (*prime_fd_to_handle)(struct drm_device *dev, struct drm_file *file_priv,
                                int prime_fd, uint32_t *handle);
-       /* export GEM -> dmabuf */
+       /**
+        * @gem_prime_export:
+        *
+        * export GEM -> dmabuf
+        */
        struct dma_buf * (*gem_prime_export)(struct drm_device *dev,
                                struct drm_gem_object *obj, int flags);
-       /* import dmabuf -> GEM */
+       /**
+        * @gem_prime_import:
+        *
+        * import dmabuf -> GEM
+        */
        struct drm_gem_object * (*gem_prime_import)(struct drm_device *dev,
                                struct dma_buf *dma_buf);
-       /* low-level interface used by drm_gem_prime_{import,export} */
        int (*gem_prime_pin)(struct drm_gem_object *obj);
        void (*gem_prime_unpin)(struct drm_gem_object *obj);
        struct reservation_object * (*gem_prime_res_obj)(
@@ -505,16 +536,25 @@ struct drm_driver {
                            struct drm_device *dev,
                            uint32_t handle);
 
-       /* Driver private ops for this object */
+       /**
+        * @gem_vm_ops: Driver private ops for this object
+        */
        const struct vm_operations_struct *gem_vm_ops;
 
+       /** @major: driver major number */
        int major;
+       /** @minor: driver minor number */
        int minor;
+       /** @patchlevel: driver patch level */
        int patchlevel;
+       /** @name: driver name */
        char *name;
+       /** @desc: driver description */
        char *desc;
+       /** @date: driver date */
        char *date;
 
+       /** @driver_features: driver features */
        u32 driver_features;
 
        /**