drm/mgag200: Call mgag200_driver_{load, unload}() before registering device

The load/unload callbacks in struct drm_driver are deprecated. Remove
them and call functions explicitly.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20191205090252.5711-1-tzimmermann@suse.de

drivers/gpu/drm/mgag200/mgag200_drv.c

@@ -6,13 +6,13 @@
  *          Dave Airlie
  */
 
-#include <linux/module.h>
 #include <linux/console.h>
+#include <linux/module.h>
+#include <linux/pci.h>
 
 #include <drm/drm_drv.h>
 #include <drm/drm_file.h>
 #include <drm/drm_ioctl.h>
-#include <drm/drm_pci.h>
 #include <drm/drm_pciids.h>
 
 #include "mgag200_drv.h"
@@ -46,24 +46,56 @@ MODULE_DEVICE_TABLE(pci, pciidlist);
 
 static int mga_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
+	struct drm_device *dev;
+	int ret;
+
 	drm_fb_helper_remove_conflicting_pci_framebuffers(pdev, "mgag200drmfb");
 
-	return drm_get_pci_dev(pdev, ent, &driver);
+	ret = pci_enable_device(pdev);
+	if (ret)
+		return ret;
+
+	dev = drm_dev_alloc(&driver, &pdev->dev);
+	if (IS_ERR(dev)) {
+		ret = PTR_ERR(dev);
+		goto err_pci_disable_device;
+	}
+
+	dev->pdev = pdev;
+	pci_set_drvdata(pdev, dev);
+
+	ret = mgag200_driver_load(dev, ent->driver_data);
+	if (ret)
+		goto err_drm_dev_put;
+
+	ret = drm_dev_register(dev, ent->driver_data);
+	if (ret)
+		goto err_mgag200_driver_unload;
+
+	return 0;
+
+err_mgag200_driver_unload:
+	mgag200_driver_unload(dev);
+err_drm_dev_put:
+	drm_dev_put(dev);
+err_pci_disable_device:
+	pci_disable_device(pdev);
+	return ret;
 }
 
 static void mga_pci_remove(struct pci_dev *pdev)
 {
 	struct drm_device *dev = pci_get_drvdata(pdev);
 
-	drm_put_dev(dev);
+	drm_dev_unregister(dev);
+	mgag200_driver_unload(dev);
+	drm_dev_put(dev);
 }
 
 DEFINE_DRM_GEM_FOPS(mgag200_driver_fops);
 
 static struct drm_driver driver = {
 	.driver_features = DRIVER_GEM | DRIVER_MODESET,
-	.load = mgag200_driver_load,
-	.unload = mgag200_driver_unload,
 	.fops = &mgag200_driver_fops,
 	.name = DRIVER_NAME,
 	.desc = DRIVER_DESC,