devicetree: add DT_COMPAT_ON_BUS()
And implement DT_ANY_INST_ON_BUS() in terms of it.
This makes some error messages quite a bit shorter by avoiding
UTIL_LISTIFY(), which has a nasty temper and tends to explode if not
treated gently.
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
diff --git a/scripts/dts/gen_defines.py b/scripts/dts/gen_defines.py
index 6b86ec5..cf112f7 100755
--- a/scripts/dts/gen_defines.py
+++ b/scripts/dts/gen_defines.py
@@ -19,6 +19,7 @@
# edtlib. This will keep this script simple.
import argparse
+from collections import defaultdict
import os
import pathlib
import re
@@ -64,7 +65,7 @@
write_vanilla_props(node)
write_chosen(edt)
- write_inst_num(edt)
+ write_global_compat_info(edt)
def parse_args():
@@ -510,26 +511,29 @@
out_define(macro, value, width=max_len)
-def write_inst_num(edt):
- # Tree-wide information such as number of instances is printed here.
+def write_global_compat_info(edt):
+ # Tree-wide information related to each compatible, such as number
+ # of instances, is printed here.
- out_comment("Number of instances\n")
- compat_list = []
+ compat2numinst = {}
+ compat2buses = defaultdict(list)
+ for compat, enabled in edt.compat2enabled.items():
+ compat2numinst[compat] = len(enabled)
- # Walk the nodes to build which compats we need to generate for
- for node in sorted(edt.nodes, key=lambda node: node.dep_ordinal):
- if not node.enabled:
- continue
- if not node.matching_compat:
- continue
- for compat in node.compats:
- if compat not in compat_list:
- compat_list.append(compat)
+ for node in enabled:
+ bus = node.on_bus
+ if bus is not None and bus not in compat2buses[compat]:
+ compat2buses[compat].append(bus)
- for compat in compat_list:
- num_inst = len(edt.compat2enabled[compat])
- out_define(f"DT_N_INST_{str2ident(compat)}_NUM", num_inst)
+ out_comment("Number of enabled instances of each compatible\n")
+ for compat, numinst in compat2numinst.items():
+ out_define(f"DT_N_INST_{str2ident(compat)}_NUM", numinst)
+ out_comment("Bus information for enabled nodes of each compatible\n")
+ for compat, buses in compat2buses.items():
+ for bus in buses:
+ out_define(
+ f"DT_COMPAT_{str2ident(compat)}_BUS_{str2ident(bus)}", 1)
def str2ident(s):
# Converts 's' to a form suitable for (part of) an identifier
