diff options
| -rw-r--r-- | drivers/gpu/drm/tilcdc/tilcdc_crtc.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c index c1cbabcfb9d4..639821fb27b7 100644 --- a/drivers/gpu/drm/tilcdc/tilcdc_crtc.c +++ b/drivers/gpu/drm/tilcdc/tilcdc_crtc.c @@ -153,6 +153,8 @@ static void tilcdc_crtc_enable(struct drm_crtc *crtc) struct drm_device *dev = crtc->dev; struct tilcdc_crtc *tilcdc_crtc = to_tilcdc_crtc(crtc); + WARN_ON(!drm_modeset_is_locked(&crtc->mutex)); + if (tilcdc_crtc->enabled) return; @@ -177,6 +179,8 @@ void tilcdc_crtc_disable(struct drm_crtc *crtc) struct drm_device *dev = crtc->dev; struct tilcdc_drm_private *priv = dev->dev_private; + WARN_ON(!drm_modeset_is_locked(&crtc->mutex)); + if (!tilcdc_crtc->enabled) return; @@ -249,6 +253,8 @@ int tilcdc_crtc_update_fb(struct drm_crtc *crtc, struct drm_device *dev = crtc->dev; unsigned long flags; + WARN_ON(!drm_modeset_is_locked(&crtc->mutex)); + if (tilcdc_crtc->event) { dev_err(dev->dev, "already pending page flip!\n"); return -EBUSY; @@ -353,6 +359,8 @@ static void tilcdc_crtc_mode_set_nofb(struct drm_crtc *crtc) struct drm_display_mode *mode = &crtc->state->adjusted_mode; struct drm_framebuffer *fb = crtc->primary->state->fb; + WARN_ON(!drm_modeset_is_locked(&crtc->mutex)); + if (WARN_ON(!info)) return; |