drm/mgag200: Integrate init function into load function

Done to simplify initialization code before embedding the DRM device
instance in struct mga_device.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200507090315.21274-4-tzimmermann@suse.de

drivers/gpu/drm/mgag200/mgag200_main.c

@@ -90,12 +90,17 @@ static int mga_vram_init(struct mga_device *mdev)
 	return 0;
 }
 
-static int mgag200_device_init(struct drm_device *dev,
-			       uint32_t flags)
+int mgag200_driver_load(struct drm_device *dev, unsigned long flags)
 {
-	struct mga_device *mdev = to_mga_device(dev);
+	struct mga_device *mdev;
 	int ret, option;
 
+	mdev = devm_kzalloc(dev->dev, sizeof(struct mga_device), GFP_KERNEL);
+	if (mdev == NULL)
+		return -ENOMEM;
+	dev->dev_private = (void *)mdev;
+	mdev->dev = dev;
+
 	mdev->flags = mgag200_flags_from_driver_data(flags);
 	mdev->type = mgag200_type_from_driver_data(flags);
 
@@ -122,7 +127,7 @@ static int mgag200_device_init(struct drm_device *dev,
 	/* stash G200 SE model number for later use */
 	if (IS_G200_SE(mdev)) {
 		mdev->unique_rev_id = RREG32(0x1e24);
-		DRM_DEBUG("G200 SE unique revision id is 0x%x\n",
+		drm_dbg(dev, "G200 SE unique revision id is 0x%x\n",
 			mdev->unique_rev_id);
 	}
 
@@ -134,33 +139,9 @@ static int mgag200_device_init(struct drm_device *dev,
 	mdev->bpp_shifts[1] = 1;
 	mdev->bpp_shifts[2] = 0;
 	mdev->bpp_shifts[3] = 2;
-	return 0;
-}
-
-/*
- * Functions here will be called by the core once it's bound the driver to
- * a PCI device
- */
-
 
-int mgag200_driver_load(struct drm_device *dev, unsigned long flags)
-{
-	struct mga_device *mdev;
-	int r;
-
-	mdev = devm_kzalloc(dev->dev, sizeof(struct mga_device), GFP_KERNEL);
-	if (mdev == NULL)
-		return -ENOMEM;
-	dev->dev_private = (void *)mdev;
-	mdev->dev = dev;
-
-	r = mgag200_device_init(dev, flags);
-	if (r) {
-		dev_err(&dev->pdev->dev, "Fatal error during GPU init: %d\n", r);
-		return r;
-	}
-	r = mgag200_mm_init(mdev);
-	if (r)
+	ret = mgag200_mm_init(mdev);
+	if (ret)
 		goto err_mm;
 
 	drm_mode_config_init(dev);
@@ -171,16 +152,15 @@ int mgag200_driver_load(struct drm_device *dev, unsigned long flags)
 		dev->mode_config.preferred_depth = 32;
 	dev->mode_config.prefer_shadow = 1;
 
-	r = mgag200_modeset_init(mdev);
-	if (r) {
-		dev_err(&dev->pdev->dev, "Fatal error during modeset init: %d\n", r);
+	ret = mgag200_modeset_init(mdev);
+	if (ret) {
+		drm_err(dev, "Fatal error during modeset init: %d\n", ret);
 		goto err_modeset;
 	}
 
-	r = mgag200_cursor_init(mdev);
-	if (r)
-		dev_warn(&dev->pdev->dev,
-			"Could not initialize cursors. Not doing hardware cursors.\n");
+	ret = mgag200_cursor_init(mdev);
+	if (ret)
+		drm_err(dev, "Could not initialize cursors. Not doing hardware cursors.\n");
 
 	return 0;
 
@@ -190,8 +170,7 @@ int mgag200_driver_load(struct drm_device *dev, unsigned long flags)
 	mgag200_mm_fini(mdev);
 err_mm:
 	dev->dev_private = NULL;
-
-	return r;
+	return ret;
 }
 
 void mgag200_driver_unload(struct drm_device *dev)