drm/vc4: hdmi: Move vc4_hdmi_supports_scrambling() around

We'll need it earlier in the driver, so let's move it next to the other
scrambling-related helpers.

Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://lore.kernel.org/r/20220829134731.213478-7-maxime@cerno.tech

drivers/gpu/drm/vc4/vc4_hdmi.c

@@ -124,6 +124,23 @@ static unsigned long long
 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)
+{
+	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);
+
+	if (!display->is_hdmi)
+		return false;
+
+	if (!display->hdmi.scdc.supported ||
+	    !display->hdmi.scdc.scrambling.supported)
+		return false;
+
+	return true;
+}
+
 static bool vc4_hdmi_mode_needs_scrambling(const struct drm_display_mode *mode,
 					   unsigned int bpc,
 					   enum vc4_hdmi_output_format fmt)
@@ -739,23 +756,6 @@ static void vc4_hdmi_set_infoframes(struct drm_encoder *encoder)
 	vc4_hdmi_set_hdr_infoframe(encoder);
 }
 
-static bool vc4_hdmi_supports_scrambling(struct drm_encoder *encoder)
-{
-	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);
-
-	if (!display->is_hdmi)
-		return false;
-
-	if (!display->hdmi.scdc.supported ||
-	    !display->hdmi.scdc.scrambling.supported)
-		return false;
-
-	return true;
-}
-
 #define SCRAMBLING_POLLING_DELAY_MS	1000
 
 static void vc4_hdmi_enable_scrambling(struct drm_encoder *encoder)