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drm/rockchip: fbdev: replace rockchip_gem_mmap_buf() by drm_gem_mmap_obj() in .fb_mmp()

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The rockchip_gem_mmap_buf() will call .mmap() of struct
drm_gem_object_funcs twice;

One is:
rockchip_gem_mmap_buf() -> drm_gem_mmap_obj() ->
rockchip_gem_object_funcs.mmap() -> rockchip_drm_gem_object_mmap()

The other is:
rockchip_gem_mmap_buf()-> rockchip_drm_gem_object_mmap()

This will cause the -EBUSY return of vm_map_pages() ultimately.

Change-Id: I3de9eb23f81afa437087e2276d16dd8fb4c003d6
Signed-off-by: Damon Ding <damon.ding@rock-chips.com>
This commit is contained in:
Damon Ding
2024-10-17 10:41:17 +08:00
committed by Tao Huang
parent d883deb664
commit cab061d263
1 changed files with 1 additions and 1 deletions
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2
drivers/gpu/drm/rockchip/rockchip_drm_fbdev.c
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@@ -22,7 +22,7 @@ static int rockchip_fbdev_mmap(struct fb_info *info,
struct drm_fb_helper *helper = info->par;
struct rockchip_drm_private *private = helper->dev->dev_private;
return rockchip_gem_mmap_buf(private->fbdev_bo, vma);
return drm_gem_mmap_obj(private->fbdev_bo, private->fbdev_bo->size, vma);
}
static const struct fb_ops rockchip_drm_fbdev_ops = {