drm/mgag200: Use new drm_fb_helper functions

Use the newly created wrapper drm_fb_helper functions instead of calling
core fbdev functions directly. They also simplify the fb_info creation.

v3:
- Don't touch remove_conflicting_framebuffers

v2:
- remove unused goto label 'out'

Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: David Airlie <airlied@linux.ie>
Cc: Alex Deucher <alexander.deucher@amd.com>

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

1 files changed, 8 insertions, 31 deletions

diff --git a/drivers/gpu/drm/mgag200/mgag200_fb.c b/drivers/gpu/drm/mgag200/mgag200_fb.c
index 958cf3cf082d..87de15ea1f93 100644
--- a/drivers/gpu/drm/mgag200/mgag200_fb.c
+++ b/drivers/gpu/drm/mgag200/mgag200_fb.c
@@ -101,7 +101,7 @@ static void mga_fillrect(struct fb_info *info,
                          const struct fb_fillrect *rect)
 {
         struct mga_fbdev *mfbdev = info->par;
-        sys_fillrect(info, rect);
+        drm_fb_helper_sys_fillrect(info, rect);
         mga_dirty_update(mfbdev, rect->dx, rect->dy, rect->width,
                          rect->height);
 }
@@ -110,7 +110,7 @@ static void mga_copyarea(struct fb_info *info,
                          const struct fb_copyarea *area)
 {
         struct mga_fbdev *mfbdev = info->par;
-        sys_copyarea(info, area);
+        drm_fb_helper_sys_copyarea(info, area);
         mga_dirty_update(mfbdev, area->dx, area->dy, area->width,
                          area->height);
 }
@@ -119,7 +119,7 @@ static void mga_imageblit(struct fb_info *info,
                           const struct fb_image *image)
 {
         struct mga_fbdev *mfbdev = info->par;
-        sys_imageblit(info, image);
+        drm_fb_helper_sys_imageblit(info, image);
         mga_dirty_update(mfbdev, image->dx, image->dy, image->width,
                          image->height);
 }
@@ -166,7 +166,6 @@ static int mgag200fb_create(struct drm_fb_helper *helper,
         struct fb_info *info;
         struct drm_framebuffer *fb;
         struct drm_gem_object *gobj = NULL;
-        struct device *device = &dev->pdev->dev;
         int ret;
         void *sysram;
         int size;
@@ -189,9 +188,9 @@ static int mgag200fb_create(struct drm_fb_helper *helper,
         if (!sysram)
                 return -ENOMEM;
 
-        info = framebuffer_alloc(0, device);
-        if (info == NULL)
-                return -ENOMEM;
+        info = drm_fb_helper_alloc_fbi(helper);
+        if (IS_ERR(info))
+                return PTR_ERR(info);
 
         info->par = mfbdev;
 
@@ -206,14 +205,6 @@ static int mgag200fb_create(struct drm_fb_helper *helper,
 
         /* setup helper */
         mfbdev->helper.fb = fb;
-        mfbdev->helper.fbdev = info;
-
-        ret = fb_alloc_cmap(&info->cmap, 256, 0);
-        if (ret) {
-                DRM_ERROR("%s: can't allocate color map\n", info->fix.id);
-                ret = -ENOMEM;
-                goto out;
-        }
 
         strcpy(info->fix.id, "mgadrmfb");
 
@@ -221,11 +212,6 @@ static int mgag200fb_create(struct drm_fb_helper *helper,
         info->fbops = &mgag200fb_ops;
 
         /* setup aperture base/size for vesafb takeover */
-        info->apertures = alloc_apertures(1);
-        if (!info->apertures) {
-                ret = -ENOMEM;
-                goto out;
-        }
         info->apertures->ranges[0].base = mdev->dev->mode_config.fb_base;
         info->apertures->ranges[0].size = mdev->mc.vram_size;
 
@@ -240,24 +226,15 @@ static int mgag200fb_create(struct drm_fb_helper *helper,
         DRM_DEBUG_KMS("allocated %dx%d\n",
                       fb->width, fb->height);
         return 0;
-out:
-        return ret;
 }
 
 static int mga_fbdev_destroy(struct drm_device *dev,
                                 struct mga_fbdev *mfbdev)
 {
-        struct fb_info *info;
         struct mga_framebuffer *mfb = &mfbdev->mfb;
 
-        if (mfbdev->helper.fbdev) {
-                info = mfbdev->helper.fbdev;
-
-                unregister_framebuffer(info);
-                if (info->cmap.len)
-                        fb_dealloc_cmap(&info->cmap);
-                framebuffer_release(info);
-        }
+        drm_fb_helper_unregister_fbi(&mfbdev->helper);
+        drm_fb_helper_release_fbi(&mfbdev->helper);
 
         if (mfb->obj) {
                 drm_gem_object_unreference_unlocked(mfb->obj);