drm/exynos: removed exynos_drm_fbdev_recreate function.

this function ins't needed anymore.

Signed-off-by: Inki Dae <inki.dae@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>

diff --git a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
index d7ae29d..3508700 100644 (file)
--- a/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
+++ b/drivers/gpu/drm/exynos/exynos_drm_fbdev.c
@@ -195,66 +195,6 @@ out:
        return ret;
 }
 
-static bool
-exynos_drm_fbdev_is_samefb(struct drm_framebuffer *fb,
-                           struct drm_fb_helper_surface_size *sizes)
-{
-       if (fb->width != sizes->surface_width)
-               return false;
-       if (fb->height != sizes->surface_height)
-               return false;
-       if (fb->bits_per_pixel != sizes->surface_bpp)
-               return false;
-       if (fb->depth != sizes->surface_depth)
-               return false;
-
-       return true;
-}
-
-static int exynos_drm_fbdev_recreate(struct drm_fb_helper *helper,
-                                     struct drm_fb_helper_surface_size *sizes)
-{
-       struct drm_device *dev = helper->dev;
-       struct exynos_drm_fbdev *exynos_fbdev = to_exynos_fbdev(helper);
-       struct exynos_drm_gem_obj *exynos_gem_obj;
-       struct drm_framebuffer *fb = helper->fb;
-       struct drm_mode_fb_cmd2 mode_cmd = { 0 };
-       unsigned long size;
-
-       DRM_DEBUG_KMS("%s\n", __FILE__);
-
-       if (exynos_drm_fbdev_is_samefb(fb, sizes))
-               return 0;
-
-       mode_cmd.width = sizes->surface_width;
-       mode_cmd.height = sizes->surface_height;
-       mode_cmd.pitches[0] = sizes->surface_width * (sizes->surface_bpp >> 3);
-       mode_cmd.pixel_format = drm_mode_legacy_fb_format(sizes->surface_bpp,
-                                                         sizes->surface_depth);
-
-       if (exynos_fbdev->exynos_gem_obj)
-               exynos_drm_gem_destroy(exynos_fbdev->exynos_gem_obj);
-
-       if (fb->funcs->destroy)
-               fb->funcs->destroy(fb);
-
-       size = mode_cmd.pitches[0] * mode_cmd.height;
-       exynos_gem_obj = exynos_drm_gem_create(dev, size);
-       if (IS_ERR(exynos_gem_obj))
-               return PTR_ERR(exynos_gem_obj);
-
-       exynos_fbdev->exynos_gem_obj = exynos_gem_obj;
-
-       helper->fb = exynos_drm_framebuffer_init(dev, &mode_cmd,
-                       &exynos_gem_obj->base);
-       if (IS_ERR_OR_NULL(helper->fb)) {
-               DRM_ERROR("failed to create drm framebuffer.\n");
-               return PTR_ERR(helper->fb);
-       }
-
-       return exynos_drm_fbdev_update(helper, helper->fb);
-}
-
 static int exynos_drm_fbdev_probe(struct drm_fb_helper *helper,
                                   struct drm_fb_helper_surface_size *sizes)
 {
@@ -262,6 +202,10 @@ static int exynos_drm_fbdev_probe(struct drm_fb_helper *helper,
 
        DRM_DEBUG_KMS("%s\n", __FILE__);
 
+       /*
+        * with !helper->fb, it means that this funcion is called first time
+        * and after that, the helper->fb would be used as clone mode.
+        */
        if (!helper->fb) {
                ret = exynos_drm_fbdev_create(helper, sizes);
                if (ret < 0) {
@@ -274,12 +218,6 @@ static int exynos_drm_fbdev_probe(struct drm_fb_helper *helper,
                 * because register_framebuffer() should be called.
                 */
                ret = 1;
-       } else {
-               ret = exynos_drm_fbdev_recreate(helper, sizes);
-               if (ret < 0) {
-                       DRM_ERROR("failed to reconfigure fbdev\n");
-                       return ret;
-               }
        }
 
        return ret;