tests: pm: power_domain: use default power domain driver

The power_domain test suite created its own device driver for its power domain, which is no longer required as there is a default one implemented, use the default driver instead. Signed-off-by: Bjarki Arge Andreasen <bjarki.andreasen@nordicsemi.no>

Author: bjarki-andreasen

tests/subsys/pm/power_domain/src/main.c

@@ -21,31 +21,6 @@ static const struct device *devc;
 static int testing_domain_on_notitication;
 static int testing_domain_off_notitication;
 
-static int domain_pm_action(const struct device *dev,
-enum pm_device_action action)
-{
-int rc = 0;
-
-switch (action) {
-case PM_DEVICE_ACTION_RESUME:
-/* Switch power on */
-pm_device_children_action_run(dev, PM_DEVICE_ACTION_TURN_ON, NULL);
-break;
-case PM_DEVICE_ACTION_SUSPEND:
-pm_device_children_action_run(dev, PM_DEVICE_ACTION_TURN_OFF, NULL);
-break;
-case PM_DEVICE_ACTION_TURN_ON:
-__fallthrough;
-case PM_DEVICE_ACTION_TURN_OFF:
-break;
-default:
-rc = -ENOTSUP;
-}
-
-return rc;
-
-}
-
 static int deva_pm_action(const struct device *dev,
  enum pm_device_action pm_action)
 {
@@ -90,11 +65,6 @@ static int devb_pm_action(const struct device *dev,
 return ret;
 }
 
-
-PM_DEVICE_DT_DEFINE(TEST_DOMAIN, domain_pm_action);
-DEVICE_DT_DEFINE(TEST_DOMAIN, NULL, PM_DEVICE_DT_GET(TEST_DOMAIN),
- NULL, NULL, POST_KERNEL, 10, NULL);
-
 PM_DEVICE_DT_DEFINE(TEST_DEVA, deva_pm_action);
 DEVICE_DT_DEFINE(TEST_DEVA, NULL, PM_DEVICE_DT_GET(TEST_DEVA),
  NULL, NULL, POST_KERNEL, 20, NULL);
@@ -225,10 +195,6 @@ ZTEST(power_domain_1cpu, test_power_domain_device_runtime)
 #define TEST_DOMAIN_BALANCED DT_NODELABEL(test_domain_balanced)
 #define TEST_DEV_BALANCED DT_NODELABEL(test_dev_balanced)
 
-PM_DEVICE_DT_DEFINE(TEST_DOMAIN_BALANCED, domain_pm_action);
-DEVICE_DT_DEFINE(TEST_DOMAIN_BALANCED, NULL, PM_DEVICE_DT_GET(TEST_DOMAIN_BALANCED),
- NULL, NULL, POST_KERNEL, 10, NULL);
-
 PM_DEVICE_DT_DEFINE(TEST_DEV_BALANCED, deva_pm_action);
 DEVICE_DT_DEFINE(TEST_DEV_BALANCED, NULL, PM_DEVICE_DT_GET(TEST_DEV_BALANCED),
  NULL, NULL, POST_KERNEL, 20, NULL);