drm/i915/cnl: Move ddi buf trans related functions up.

No functional changes. But those functions will be needed
to get max level for HDMI and DP, so let's move those
up closer to other similar functions existent for previous
platforms.
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20170829232230.23051-6-rodrigo.vivi@intel.com

drivers/gpu/drm/i915/intel_ddi.c

@@ -588,6 +588,67 @@ skl_get_buf_trans_hdmi(struct drm_i915_private *dev_priv, int *n_entries)
 	}
 }
 
+static const struct cnl_ddi_buf_trans *
+cnl_get_buf_trans_hdmi(struct drm_i915_private *dev_priv, int *n_entries)
+{
+	u32 voltage = I915_READ(CNL_PORT_COMP_DW3) & VOLTAGE_INFO_MASK;
+
+	if (voltage == VOLTAGE_INFO_0_85V) {
+		*n_entries = ARRAY_SIZE(cnl_ddi_translations_hdmi_0_85V);
+		return cnl_ddi_translations_hdmi_0_85V;
+	} else if (voltage == VOLTAGE_INFO_0_95V) {
+		*n_entries = ARRAY_SIZE(cnl_ddi_translations_hdmi_0_95V);
+		return cnl_ddi_translations_hdmi_0_95V;
+	} else if (voltage == VOLTAGE_INFO_1_05V) {
+		*n_entries = ARRAY_SIZE(cnl_ddi_translations_hdmi_1_05V);
+		return cnl_ddi_translations_hdmi_1_05V;
+	} else
+		MISSING_CASE(voltage);
+	return NULL;
+}
+
+static const struct cnl_ddi_buf_trans *
+cnl_get_buf_trans_dp(struct drm_i915_private *dev_priv, int *n_entries)
+{
+	u32 voltage = I915_READ(CNL_PORT_COMP_DW3) & VOLTAGE_INFO_MASK;
+
+	if (voltage == VOLTAGE_INFO_0_85V) {
+		*n_entries = ARRAY_SIZE(cnl_ddi_translations_dp_0_85V);
+		return cnl_ddi_translations_dp_0_85V;
+	} else if (voltage == VOLTAGE_INFO_0_95V) {
+		*n_entries = ARRAY_SIZE(cnl_ddi_translations_dp_0_95V);
+		return cnl_ddi_translations_dp_0_95V;
+	} else if (voltage == VOLTAGE_INFO_1_05V) {
+		*n_entries = ARRAY_SIZE(cnl_ddi_translations_dp_1_05V);
+		return cnl_ddi_translations_dp_1_05V;
+	} else
+		MISSING_CASE(voltage);
+	return NULL;
+}
+
+static const struct cnl_ddi_buf_trans *
+cnl_get_buf_trans_edp(struct drm_i915_private *dev_priv, int *n_entries)
+{
+	u32 voltage = I915_READ(CNL_PORT_COMP_DW3) & VOLTAGE_INFO_MASK;
+
+	if (dev_priv->vbt.edp.low_vswing) {
+		if (voltage == VOLTAGE_INFO_0_85V) {
+			*n_entries = ARRAY_SIZE(cnl_ddi_translations_edp_0_85V);
+			return cnl_ddi_translations_edp_0_85V;
+		} else if (voltage == VOLTAGE_INFO_0_95V) {
+			*n_entries = ARRAY_SIZE(cnl_ddi_translations_edp_0_95V);
+			return cnl_ddi_translations_edp_0_95V;
+		} else if (voltage == VOLTAGE_INFO_1_05V) {
+			*n_entries = ARRAY_SIZE(cnl_ddi_translations_edp_1_05V);
+			return cnl_ddi_translations_edp_1_05V;
+		} else
+			MISSING_CASE(voltage);
+		return NULL;
+	} else {
+		return cnl_get_buf_trans_dp(dev_priv, n_entries);
+	}
+}
+
 static int intel_ddi_hdmi_level(struct drm_i915_private *dev_priv, enum port port)
 {
 	int n_hdmi_entries;
@@ -1829,67 +1890,6 @@ u8 intel_ddi_dp_voltage_max(struct intel_encoder *encoder)
 		DP_TRAIN_VOLTAGE_SWING_MASK;
 }
 
-static const struct cnl_ddi_buf_trans *
-cnl_get_buf_trans_hdmi(struct drm_i915_private *dev_priv, int *n_entries)
-{
-	u32 voltage = I915_READ(CNL_PORT_COMP_DW3) & VOLTAGE_INFO_MASK;
-
-	if (voltage == VOLTAGE_INFO_0_85V) {
-		*n_entries = ARRAY_SIZE(cnl_ddi_translations_hdmi_0_85V);
-		return cnl_ddi_translations_hdmi_0_85V;
-	} else if (voltage == VOLTAGE_INFO_0_95V) {
-		*n_entries = ARRAY_SIZE(cnl_ddi_translations_hdmi_0_95V);
-		return cnl_ddi_translations_hdmi_0_95V;
-	} else if (voltage == VOLTAGE_INFO_1_05V) {
-		*n_entries = ARRAY_SIZE(cnl_ddi_translations_hdmi_1_05V);
-		return cnl_ddi_translations_hdmi_1_05V;
-	} else
-		MISSING_CASE(voltage);
-	return NULL;
-}
-
-static const struct cnl_ddi_buf_trans *
-cnl_get_buf_trans_dp(struct drm_i915_private *dev_priv, int *n_entries)
-{
-	u32 voltage = I915_READ(CNL_PORT_COMP_DW3) & VOLTAGE_INFO_MASK;
-
-	if (voltage == VOLTAGE_INFO_0_85V) {
-		*n_entries = ARRAY_SIZE(cnl_ddi_translations_dp_0_85V);
-		return cnl_ddi_translations_dp_0_85V;
-	} else if (voltage == VOLTAGE_INFO_0_95V) {
-		*n_entries = ARRAY_SIZE(cnl_ddi_translations_dp_0_95V);
-		return cnl_ddi_translations_dp_0_95V;
-	} else if (voltage == VOLTAGE_INFO_1_05V) {
-		*n_entries = ARRAY_SIZE(cnl_ddi_translations_dp_1_05V);
-		return cnl_ddi_translations_dp_1_05V;
-	} else
-		MISSING_CASE(voltage);
-	return NULL;
-}
-
-static const struct cnl_ddi_buf_trans *
-cnl_get_buf_trans_edp(struct drm_i915_private *dev_priv, int *n_entries)
-{
-	u32 voltage = I915_READ(CNL_PORT_COMP_DW3) & VOLTAGE_INFO_MASK;
-
-	if (dev_priv->vbt.edp.low_vswing) {
-		if (voltage == VOLTAGE_INFO_0_85V) {
-			*n_entries = ARRAY_SIZE(cnl_ddi_translations_edp_0_85V);
-			return cnl_ddi_translations_edp_0_85V;
-		} else if (voltage == VOLTAGE_INFO_0_95V) {
-			*n_entries = ARRAY_SIZE(cnl_ddi_translations_edp_0_95V);
-			return cnl_ddi_translations_edp_0_95V;
-		} else if (voltage == VOLTAGE_INFO_1_05V) {
-			*n_entries = ARRAY_SIZE(cnl_ddi_translations_edp_1_05V);
-			return cnl_ddi_translations_edp_1_05V;
-		} else
-			MISSING_CASE(voltage);
-		return NULL;
-	} else {
-		return cnl_get_buf_trans_dp(dev_priv, n_entries);
-	}
-}
-
 static void cnl_ddi_vswing_program(struct drm_i915_private *dev_priv,
 				    u32 level, enum port port, int type)
 {