drm/amdgpu: restore the fbdev mode in lastclose

[uclinux-h8/linux.git] / drivers / gpu / drm / amd / amdgpu / amdgpu_fb.c

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
index 8a122b1..96290d9 100644 (file)
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fb.c
@@ -402,3 +402,19 @@ bool amdgpu_fbdev_robj_is_fb(struct amdgpu_device *adev, struct amdgpu_bo *robj)
                return true;
        return false;
 }
+
+void amdgpu_fbdev_restore_mode(struct amdgpu_device *adev)
+{
+       struct amdgpu_fbdev *afbdev = adev->mode_info.rfbdev;
+       struct drm_fb_helper *fb_helper;
+       int ret;
+
+       if (!afbdev)
+               return;
+
+       fb_helper = &afbdev->helper;
+
+       ret = drm_fb_helper_restore_fbdev_mode_unlocked(fb_helper);
+       if (ret)
+               DRM_DEBUG("failed to restore crtc mode\n");
+}