vc4_hdmi_encoder_compute_mode_clock(const struct drm_display_mode *mode,
                                    unsigned int bpc, enum vc4_hdmi_output_format fmt);
 
-static bool vc4_hdmi_supports_scrambling(struct drm_encoder *encoder)
+static bool vc4_hdmi_supports_scrambling(struct vc4_hdmi *vc4_hdmi)
 {
-       struct vc4_hdmi *vc4_hdmi = encoder_to_vc4_hdmi(encoder);
        struct drm_display_info *display = &vc4_hdmi->connector.display_info;
 
        lockdep_assert_held(&vc4_hdmi->mutex);
 {
        struct drm_device *drm = connector->dev;
        struct vc4_hdmi *vc4_hdmi = connector_to_vc4_hdmi(connector);
-       struct drm_encoder *encoder = &vc4_hdmi->encoder.base;
        struct drm_connector_state *conn_state;
        struct drm_crtc_state *crtc_state;
        struct drm_crtc *crtc;
        if (!crtc_state->active)
                return 0;
 
-       if (!vc4_hdmi_supports_scrambling(encoder))
+       if (!vc4_hdmi_supports_scrambling(vc4_hdmi))
                return 0;
 
        scrambling_needed = vc4_hdmi_mode_needs_scrambling(&vc4_hdmi->saved_adjusted_mode,
 
        lockdep_assert_held(&vc4_hdmi->mutex);
 
-       if (!vc4_hdmi_supports_scrambling(encoder))
+       if (!vc4_hdmi_supports_scrambling(vc4_hdmi))
                return;
 
        if (!vc4_hdmi_mode_needs_scrambling(mode,