pdn: switch to use routing level

Signed-off-by: Peter Gadfort <[email protected]>

Author: gadfort

src/pdn/src/pdn.tcl

@@ -504,7 +504,7 @@ proc add_pdn_ring { args } {
   if { [info exists flags(-connect_to_pads)] } {
     if { ![info exists keys(-connect_to_pad_layers)] } {
       foreach layer [[ord::get_db_tech] getLayers] {
-        if { [$layer getType] == "ROUTING" } {
+        if { [$layer getRoutingLevel] > 0 } {
           lappend connect_to_pad_layers $layer
         }
       }
@@ -906,7 +906,7 @@ proc define_pdn_grid { args } {
   if { [info exists flags(-connect_to_pads)] } {
     if { ![info exists keys(-connect_to_pad_layers)] } {
       foreach layer [[ord::get_db_tech] getLayers] {
-        if { [$layer getType] == "ROUTING" } {
+        if { [$layer getRoutingLevel] > 0 } {
           lappend connect_to_pad_layers $layer
         }
       }

src/pdn/test/pdn_aux.py

@@ -243,7 +243,7 @@ def define_pdn_grid_real(
     if bool(connect_to_pads):
         if not bool(connect_to_pad_layers):
             for layer in design.getTech().getDB().getTech().getLayers():
-                if layer.getType() == "ROUTING":
+                if layer.getRoutingLevel() > 0:
                     connect_to_pad_layers.append(layer)
         else:
             connect_to_pad_layers = [
@@ -691,7 +691,7 @@ def add_pdn_ring(
     if bool(connect_to_pads):
         if not bool(connect_to_pad_layers):
             for layer in design.getTech().getDB().getTech().getLayers():
-                if layer.getType() == "ROUTING":
+                if layer.getRoutingLevel() > 0:
                     connect_to_pad_layers.append(layer)
         else:
             connect_to_pad_layers = [