diff options
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/exynos/exynos_drm_crtc.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/gpu/drm/exynos/exynos_drm_crtc.c b/drivers/gpu/drm/exynos/exynos_drm_crtc.c index 07c5d2a0bdc0..ac004a3288da 100644 --- a/drivers/gpu/drm/exynos/exynos_drm_crtc.c +++ b/drivers/gpu/drm/exynos/exynos_drm_crtc.c @@ -155,6 +155,12 @@ static int exynos_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, DRM_DEBUG_KMS("%s\n", __FILE__); + /* when framebuffer changing is requested, crtc's dpms should be on */ + if (exynos_crtc->dpms > DRM_MODE_DPMS_ON) { + DRM_ERROR("failed framebuffer changing request.\n"); + return -EPERM; + } + crtc_w = crtc->fb->width - x; crtc_h = crtc->fb->height - y; |