drm/plane-helper: unexport drm_primary_helper_create_plane

We shouldn't tempt driver writers into using this since it uses a
default format list which is likely wrong. And when that's done we can
simplify the code a bit, too.

Noticed while reviewing a patch from Laurent.

Cc: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Cc: Matt Roper <matthew.d.roper@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>

2 files changed, 4 insertions, 26 deletions

diff --git a/drivers/gpu/drm/drm_plane_helper.c b/drivers/gpu/drm/drm_plane_helper.c
index 813a06627eb3..8e56783265e1 100644
--- a/drivers/gpu/drm/drm_plane_helper.c
+++ b/drivers/gpu/drm/drm_plane_helper.c
@@ -344,20 +344,7 @@ const struct drm_plane_funcs drm_primary_helper_funcs = {
 };
 EXPORT_SYMBOL(drm_primary_helper_funcs);
 
-/**
- * drm_primary_helper_create_plane() - Create a generic primary plane
- * @dev: drm device
- * @formats: pixel formats supported, or NULL for a default safe list
- * @num_formats: size of @formats; ignored if @formats is NULL
- *
- * Allocates and initializes a primary plane that can be used with the primary
- * plane helpers.  Drivers that wish to use driver-specific plane structures or
- * provide custom handler functions may perform their own allocation and
- * initialization rather than calling this function.
- */
-struct drm_plane *drm_primary_helper_create_plane(struct drm_device *dev,
-                                                  const uint32_t *formats,
-                                                  int num_formats)
+static struct drm_plane *create_primary_plane(struct drm_device *dev)
 {
         struct drm_plane *primary;
         int ret;
@@ -368,15 +355,11 @@ struct drm_plane *drm_primary_helper_create_plane(struct drm_device *dev,
                 return NULL;
         }
 
-        if (formats == NULL) {
-                formats = safe_modeset_formats;
-                num_formats = ARRAY_SIZE(safe_modeset_formats);
-        }
-
         /* possible_crtc's will be filled in later by crtc_init */
         ret = drm_universal_plane_init(dev, primary, 0,
                                        &drm_primary_helper_funcs,
-                                       formats, num_formats,
+                                       safe_modeset_formats,
+                                       ARRAY_SIZE(safe_modeset_formats),
                                        DRM_PLANE_TYPE_PRIMARY);
         if (ret) {
                 kfree(primary);
@@ -385,7 +368,6 @@ struct drm_plane *drm_primary_helper_create_plane(struct drm_device *dev,
 
         return primary;
 }
-EXPORT_SYMBOL(drm_primary_helper_create_plane);
 
 /**
  * drm_crtc_init - Legacy CRTC initialization function
@@ -404,7 +386,7 @@ int drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
 {
         struct drm_plane *primary;
 
-        primary = drm_primary_helper_create_plane(dev, NULL, 0);
+        primary = create_primary_plane(dev);
         return drm_crtc_init_with_planes(dev, crtc, primary, NULL, funcs);
 }
 EXPORT_SYMBOL(drm_crtc_init);
diff --git a/include/drm/drm_plane_helper.h b/include/drm/drm_plane_helper.h
index 72ddab02ebd9..e48157a5a59c 100644
--- a/include/drm/drm_plane_helper.h
+++ b/include/drm/drm_plane_helper.h
@@ -100,10 +100,6 @@ extern int drm_primary_helper_update(struct drm_plane *plane,
 extern int drm_primary_helper_disable(struct drm_plane *plane);
 extern void drm_primary_helper_destroy(struct drm_plane *plane);
 extern const struct drm_plane_funcs drm_primary_helper_funcs;
-extern struct drm_plane *drm_primary_helper_create_plane(struct drm_device *dev,
-                                                         const uint32_t *formats,
-                                                         int num_formats);
-
 
 int drm_plane_helper_update(struct drm_plane *plane, struct drm_crtc *crtc,
                             struct drm_framebuffer *fb,