3 files changed, 39 insertions, 1 deletions
diff --git a/zephyr/test/skyrim/testcase.yaml b/zephyr/test/skyrim/testcase.yaml
index 43ea40da6f..2084a37bba 100644
--- a/zephyr/test/skyrim/testcase.yaml
+++ b/zephyr/test/skyrim/testcase.yaml
@@ -34,7 +34,7 @@ tests:
   skyrim.crystaldrift.ppc_config:
     extra_configs:
     - CONFIG_TEST_BOARD_CRYSTALDRIFT=y
-    - CONFIG_TEST_BOARD_PPC_CONFIG=y
+    - CONFIG_TEST_BOARD_PPC_CONFIG_CUSTOM=y
 
   # Frostflow tests
   skyrim.frostflow:
diff --git a/zephyr/test/skyrim/tests/crystaldrift/CMakeLists.txt b/zephyr/test/skyrim/tests/crystaldrift/CMakeLists.txt
index e78711fed2..cec3317f7f 100644
--- a/zephyr/test/skyrim/tests/crystaldrift/CMakeLists.txt
+++ b/zephyr/test/skyrim/tests/crystaldrift/CMakeLists.txt
@@ -3,3 +3,4 @@
 # found in the LICENSE file.
 
 target_sources(app PRIVATE src/common.c)
+target_sources_ifdef(CONFIG_TEST_BOARD_PPC_CONFIG app PRIVATE src/ppc_config.c)
diff --git a/zephyr/test/skyrim/tests/crystaldrift/src/ppc_config.c b/zephyr/test/skyrim/tests/crystaldrift/src/ppc_config.c
new file mode 100644
index 0000000000..0f319d8ea4
--- /dev/null
+++ b/zephyr/test/skyrim/tests/crystaldrift/src/ppc_config.c
@@ -0,0 +1,37 @@
+/* Copyright 2023 The ChromiumOS Authors
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+#include <zephyr/fff.h>
+#include <zephyr/ztest.h>
+
+#include <gpio.h>
+#include <usbc_ppc.h>
+
+FAKE_VOID_FUNC(nx20p348x_interrupt, int);
+
+static void ppc_config_before(void *fixture)
+{
+	ARG_UNUSED(fixture);
+	RESET_FAKE(nx20p348x_interrupt);
+}
+
+void ppc_interrupt(enum gpio_signal signal);
+
+ZTEST_SUITE(ppc_config, NULL, NULL, ppc_config_before, NULL, NULL);
+
+ZTEST(ppc_config, test_ppc_interrupt_c0)
+{
+	ppc_interrupt(GPIO_USB_C0_PPC_INT_ODL);
+	zassert_equal(nx20p348x_interrupt_fake.call_count, 1);
+	/* port */
+	zassert_equal(nx20p348x_interrupt_fake.arg0_val, 0);
+}
+
+ZTEST(ppc_config, test_ppc_interrupt_c1)
+{
+	ppc_interrupt(GPIO_USB_C1_PPC_INT_ODL);
+	zassert_equal(nx20p348x_interrupt_fake.call_count, 1);
+	/* port */
+	zassert_equal(nx20p348x_interrupt_fake.arg0_val, 1);
+}