Add bridged amplifiers to cs42l43

Merge series from Charles Keepax <ckeepax@opensource.cirrus.com>:

In some cs42l43 systems a couple of cs35l56 amplifiers are attached
to the cs42l43's SPI and I2S. On Windows the cs42l43 is controlled
by a SDCA class driver and these two amplifiers are controlled by
firmware running on the cs42l43. However, under Linux the decision
was made to interact with the cs42l43 directly, affording the user
greater control over the audio system. However, this has resulted
in an issue where these two bridged cs35l56 amplifiers are not
populated in ACPI and must be added manually. There is at least an
SDCA extension unit DT entry we can key off.

The process of adding this is handled using a software node, firstly the
ability to add native chip selects to software nodes must be added.
Secondly, an additional flag for naming the SPI devices is added this
allows the machine driver to key to the correct amplifier. Then finally,
the cs42l43 SPI driver adds the two amplifiers directly onto its SPI
bus.

An additional series will follow soon to add the audio machine driver
parts (in the sof-sdw driver), however that is fairly orthogonal to
this part of the process, getting the actual amplifiers registered.

1 files changed, 9 insertions, 1 deletions

diff --git a/tools/testing/selftests/exec/binfmt_script.py b/tools/testing/selftests/exec/binfmt_script.py
index 05f94a741c7a..2c575a2c0eab 100755
--- a/tools/testing/selftests/exec/binfmt_script.py
+++ b/tools/testing/selftests/exec/binfmt_script.py
@@ -16,6 +16,8 @@ SIZE=256
 NAME_MAX=int(subprocess.check_output(["getconf", "NAME_MAX", "."]))
 
 test_num=0
+pass_num=0
+fail_num=0
 
 code='''#!/usr/bin/perl
 print "Executed interpreter! Args:\n";
@@ -42,7 +44,7 @@ foreach my $a (@ARGV) {
 # ...
 def test(name, size, good=True, leading="", root="./", target="/perl",
                      fill="A", arg="", newline="\n", hashbang="#!"):
-    global test_num, tests, NAME_MAX
+    global test_num, pass_num, fail_num, tests, NAME_MAX
     test_num += 1
     if test_num > tests:
         raise ValueError("more binfmt_script tests than expected! (want %d, expected %d)"
@@ -80,16 +82,20 @@ def test(name, size, good=True, leading="", root="./", target="/perl",
         if good:
             print("ok %d - binfmt_script %s (successful good exec)"
                   % (test_num, name))
+            pass_num += 1
         else:
             print("not ok %d - binfmt_script %s succeeded when it should have failed"
                   % (test_num, name))
+            fail_num = 1
     else:
         if good:
             print("not ok %d - binfmt_script %s failed when it should have succeeded (rc:%d)"
                   % (test_num, name, proc.returncode))
+            fail_num = 1
         else:
             print("ok %d - binfmt_script %s (correctly failed bad exec)"
                   % (test_num, name))
+            pass_num += 1
 
     # Clean up crazy binaries
     os.unlink(script)
@@ -166,6 +172,8 @@ test(name="two-under-trunc-arg", size=int(SIZE/2), arg=" ")
 test(name="two-under-leading",   size=int(SIZE/2), leading=" ")
 test(name="two-under-lead-trunc-arg", size=int(SIZE/2), leading=" ", arg=" ")
 
+print("# Totals: pass:%d fail:%d xfail:0 xpass:0 skip:0 error:0" % (pass_num, fail_num))
+
 if test_num != tests:
     raise ValueError("fewer binfmt_script tests than expected! (ran %d, expected %d"
                      % (test_num, tests))