return -EINVAL;
}
+
+/*
+ * intel_crtc_duplicate_state - duplicate crtc state
+ * @crtc: drm crtc
+ *
+ * Allocates and returns a copy of the crtc state (both common and
+ * Intel-specific) for the specified crtc.
+ *
+ * Returns: The newly allocated crtc state, or NULL on failure.
+ */
+struct drm_crtc_state *
+intel_crtc_duplicate_state(struct drm_crtc *crtc)
+{
+ struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
+
+ if (WARN_ON(!intel_crtc->config))
+ return kzalloc(sizeof(*intel_crtc->config), GFP_KERNEL);
+
+ return kmemdup(intel_crtc->config, sizeof(*intel_crtc->config),
+ GFP_KERNEL);
+}
+
+/**
+ * intel_crtc_destroy_state - destroy crtc state
+ * @crtc: drm crtc
+ *
+ * Destroys the crtc state (both common and Intel-specific) for the
+ * specified crtc.
+ */
+void
+intel_crtc_destroy_state(struct drm_crtc *crtc,
+ struct drm_crtc_state *state)
+{
+ drm_atomic_helper_crtc_destroy_state(crtc, state);
+}
.set_config = intel_crtc_set_config,
.destroy = intel_crtc_destroy,
.page_flip = intel_crtc_page_flip,
+ .atomic_duplicate_state = intel_crtc_duplicate_state,
+ .atomic_destroy_state = intel_crtc_destroy_state,
};
static bool ibx_pch_dpll_get_hw_state(struct drm_i915_private *dev_priv,
const struct drm_connector_state *state,
struct drm_property *property,
uint64_t *val);
+struct drm_crtc_state *intel_crtc_duplicate_state(struct drm_crtc *crtc);
+void intel_crtc_destroy_state(struct drm_crtc *crtc,
+ struct drm_crtc_state *state);
/* intel_atomic_plane.c */
struct intel_plane_state *intel_create_plane_state(struct drm_plane *plane);