drm/mgag200: Move device init and cleanup to mgag200_drv.c

Moving the initializer and cleanup functions for device instances
to mgag200_drv.c prepares for the conversion to managed code. No
functional changes are made. Remove mgag200_main.c, which is now
empty.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Sam Ravnborg <sam@ravnborg.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20200605135803.19811-11-tzimmermann@suse.de

drivers/gpu/drm/mgag200/Makefile

 # SPDX-License-Identifier: GPL-2.0-only
-mgag200-y   := mgag200_drv.o mgag200_i2c.o mgag200_main.o mgag200_mm.o \
-	       mgag200_mode.o
+mgag200-y   := mgag200_drv.o mgag200_i2c.o mgag200_mm.o mgag200_mode.o
 
 obj-$(CONFIG_DRM_MGAG200) += mgag200.o

drivers/gpu/drm/mgag200/mgag200_drv.c

@@ -39,6 +39,74 @@ static struct drm_driver mgag200_driver = {
 	DRM_GEM_SHMEM_DRIVER_OPS,
 };
 
+/*
+ * DRM device
+ */
+
+static int mgag200_driver_load(struct drm_device *dev, unsigned long flags)
+{
+	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);
+
+	pci_read_config_dword(dev->pdev, PCI_MGA_OPTION, &option);
+	mdev->has_sdram = !(option & (1 << 14));
+
+	/* BAR 0 is the framebuffer, BAR 1 contains registers */
+	mdev->rmmio_base = pci_resource_start(dev->pdev, 1);
+	mdev->rmmio_size = pci_resource_len(dev->pdev, 1);
+
+	if (!devm_request_mem_region(dev->dev, mdev->rmmio_base,
+				     mdev->rmmio_size, "mgadrmfb_mmio")) {
+		drm_err(dev, "can't reserve mmio registers\n");
+		return -ENOMEM;
+	}
+
+	mdev->rmmio = pcim_iomap(dev->pdev, 1, 0);
+	if (mdev->rmmio == NULL)
+		return -ENOMEM;
+
+	/* stash G200 SE model number for later use */
+	if (IS_G200_SE(mdev)) {
+		mdev->unique_rev_id = RREG32(0x1e24);
+		drm_dbg(dev, "G200 SE unique revision id is 0x%x\n",
+			mdev->unique_rev_id);
+	}
+
+	ret = mgag200_mm_init(mdev);
+	if (ret)
+		goto err_mm;
+
+	ret = mgag200_modeset_init(mdev);
+	if (ret) {
+		drm_err(dev, "Fatal error during modeset init: %d\n", ret);
+		goto err_mm;
+	}
+
+	return 0;
+
+err_mm:
+	dev->dev_private = NULL;
+	return ret;
+}
+
+static void mgag200_driver_unload(struct drm_device *dev)
+{
+	struct mga_device *mdev = to_mga_device(dev);
+
+	if (mdev == NULL)
+		return;
+	dev->dev_private = NULL;
+}
+
 /*
  * PCI driver
  */

drivers/gpu/drm/mgag200/mgag200_drv.h

@@ -188,10 +188,6 @@ mgag200_flags_from_driver_data(kernel_ulong_t driver_data)
 				/* mgag200_mode.c */
 int mgag200_modeset_init(struct mga_device *mdev);
 
-				/* mgag200_main.c */
-int mgag200_driver_load(struct drm_device *dev, unsigned long flags);
-void mgag200_driver_unload(struct drm_device *dev);
-
 				/* mgag200_i2c.c */
 struct mga_i2c_chan *mgag200_i2c_create(struct drm_device *dev);
 void mgag200_i2c_destroy(struct mga_i2c_chan *i2c);

drivers/gpu/drm/mgag200/mgag200_main.c

-// SPDX-License-Identifier: GPL-2.0-only
-/*
- * Copyright 2010 Matt Turner.
- * Copyright 2012 Red Hat
- *
- * Authors: Matthew Garrett
- *          Matt Turner
- *          Dave Airlie
- */
-
-#include <linux/pci.h>
-
-#include "mgag200_drv.h"
-
-int mgag200_driver_load(struct drm_device *dev, unsigned long flags)
-{
-	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);
-
-	pci_read_config_dword(dev->pdev, PCI_MGA_OPTION, &option);
-	mdev->has_sdram = !(option & (1 << 14));
-
-	/* BAR 0 is the framebuffer, BAR 1 contains registers */
-	mdev->rmmio_base = pci_resource_start(dev->pdev, 1);
-	mdev->rmmio_size = pci_resource_len(dev->pdev, 1);
-
-	if (!devm_request_mem_region(dev->dev, mdev->rmmio_base,
-				     mdev->rmmio_size, "mgadrmfb_mmio")) {
-		drm_err(dev, "can't reserve mmio registers\n");
-		return -ENOMEM;
-	}
-
-	mdev->rmmio = pcim_iomap(dev->pdev, 1, 0);
-	if (mdev->rmmio == NULL)
-		return -ENOMEM;
-
-	/* stash G200 SE model number for later use */
-	if (IS_G200_SE(mdev)) {
-		mdev->unique_rev_id = RREG32(0x1e24);
-		drm_dbg(dev, "G200 SE unique revision id is 0x%x\n",
-			mdev->unique_rev_id);
-	}
-
-	ret = mgag200_mm_init(mdev);
-	if (ret)
-		goto err_mm;
-
-	ret = mgag200_modeset_init(mdev);
-	if (ret) {
-		drm_err(dev, "Fatal error during modeset init: %d\n", ret);
-		goto err_mm;
-	}
-
-	return 0;
-
-err_mm:
-	dev->dev_private = NULL;
-	return ret;
-}
-
-void mgag200_driver_unload(struct drm_device *dev)
-{
-	struct mga_device *mdev = to_mga_device(dev);
-
-	if (mdev == NULL)
-		return;
-	dev->dev_private = NULL;
-}