drm/i915/ehl: All EHL ports are combo phys

Unlike ICL, all of the output ports are combo phys so just return
true in intel_port_is_combophy for all EHL ports to indicate that.

v2: Return false in intel_port_is_tc since no EHL ports are TC. (Jose)

Cc: Jose Souza <jose.souza@intel.com>
Signed-off-by: Bob Paauwe <bob.j.paauwe@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
Signed-off-by: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20190320211547.519266-1-bob.j.paauwe@intel.com

drivers/gpu/drm/i915/intel_display.c

@@ -6180,6 +6180,9 @@ bool intel_port_is_combophy(struct drm_i915_private *dev_priv, enum port port)
 	if (port == PORT_NONE)
 		return false;
 
+	if (IS_ELKHARTLAKE(dev_priv))
+		return port <= PORT_C;
+
 	if (INTEL_GEN(dev_priv) >= 11)
 		return port <= PORT_B;
 
@@ -6188,7 +6191,7 @@ bool intel_port_is_combophy(struct drm_i915_private *dev_priv, enum port port)
 
 bool intel_port_is_tc(struct drm_i915_private *dev_priv, enum port port)
 {
-	if (INTEL_GEN(dev_priv) >= 11)
+	if (INTEL_GEN(dev_priv) >= 11 && !IS_ELKHARTLAKE(dev_priv))
 		return port >= PORT_C && port <= PORT_F;
 
 	return false;