drm_atomic_helper_framebuffer_changed — check if framebuffer has changed
bool drm_atomic_helper_framebuffer_changed ( | struct drm_device * dev, |
| struct drm_atomic_state * old_state, | |
struct drm_crtc * crtc); |
Checks whether the framebuffer used for this CRTC changes as a result of
the atomic update. This is useful for drivers which cannot use
drm_atomic_helper_wait_for_vblanks and need to reimplement its
functionality.