[PATCH v2 02/17] drm/tests: helpers: Document drm_kunit_device_init()

[Maxime Ripard]

Commit 44a3928324e9 ("drm/tests: Add Kunit Helpers") introduced the
drm_kunit_device_init() function but didn't document it properly. Add
that documentation.

Signed-off-by: Maxime Ripard <maxime at cerno.tech>
---
 drivers/gpu/drm/tests/drm_kunit_helpers.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/drivers/gpu/drm/tests/drm_kunit_helpers.c b/drivers/gpu/drm/tests/drm_kunit_helpers.c
index 6600a4db3158..46a68c2fd80c 100644
--- a/drivers/gpu/drm/tests/drm_kunit_helpers.c
+++ b/drivers/gpu/drm/tests/drm_kunit_helpers.c
@@ -35,6 +35,23 @@ static void dev_free(struct kunit_resource *res)
 	root_device_unregister(dev);
 }
 
+/**
+ * drm_kunit_device_init - Allocates a mock DRM device for Kunit tests
+ * @test: The test context object
+ * @features: Mocked DRM device driver features
+ * @name: Name of the struct &device to allocate
+ *
+ * This function allocates a new struct &device, creates a struct
+ * &drm_driver and will create a struct &drm_device using both.
+ *
+ * The device and driver are tied to the @test context and will get
+ * cleaned at the end of the test. The drm_device is allocated through
+ * devm_drm_dev_alloc() and will thus be freed through a device-managed
+ * resource.
+ *
+ * Returns:
+ * A pointer to the new drm_device, or an ERR_PTR() otherwise.
+ */
 struct drm_device *drm_kunit_device_init(struct kunit *test, u32 features, char *name)
 {
 	struct kunit_dev *kdev;

-- 
2.38.1-b4-0.11.0-dev-d416f