diff options
Diffstat (limited to 'drivers/gpu/drm/i915/display/intel_atomic.c')
| -rw-r--r-- | drivers/gpu/drm/i915/display/intel_atomic.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/display/intel_atomic.c b/drivers/gpu/drm/i915/display/intel_atomic.c index fd0026fc3618..b7dda18b6f29 100644 --- a/drivers/gpu/drm/i915/display/intel_atomic.c +++ b/drivers/gpu/drm/i915/display/intel_atomic.c @@ -175,6 +175,24 @@ intel_digital_connector_duplicate_state(struct drm_connector *connector) } /** + * intel_connector_needs_modeset - check if connector needs a modeset + */ +bool +intel_connector_needs_modeset(struct intel_atomic_state *state, + struct drm_connector *connector) +{ + const struct drm_connector_state *old_conn_state, *new_conn_state; + + old_conn_state = drm_atomic_get_old_connector_state(&state->base, connector); + new_conn_state = drm_atomic_get_new_connector_state(&state->base, connector); + + return old_conn_state->crtc != new_conn_state->crtc || + (new_conn_state->crtc && + drm_atomic_crtc_needs_modeset(drm_atomic_get_new_crtc_state(&state->base, + new_conn_state->crtc))); +} + +/** * intel_crtc_duplicate_state - duplicate crtc state * @crtc: drm crtc * |