proxmox-mirrors/mirror_ubuntu-kernels
1
0
Fork 0
mirror of https://git.proxmox.com/git/mirror_ubuntu-kernels.git synced 2025-12-09 14:35:24 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity

drm/tests: helpers: Make sure the device is bound

Browse Source 
The device managed resources are freed when the device is detached, so
it has to be bound in the first place.

Let's create a fake driver that we will bind to our fake device to
benefit from the device managed cleanups in our tests.

Reviewed-by: Maíra Canal <mcanal@igalia.com>
Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-9-4615a663a84a@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
This commit is contained in:
Maxime Ripard 2022-12-01 16:11:40 +01:00
parent 0bdc2e28ef
commit 57a84a97bb
No known key found for this signature in database
GPG Key ID: E3EF0D6F671851C5
1 changed files with 25 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

26
drivers/gpu/drm/tests/drm_kunit_helpers.c
View File

@ -18,12 +18,32 @@ struct kunit_dev {
static const struct drm_mode_config_funcs drm_mode_config_funcs = { static const struct drm_mode_config_funcs drm_mode_config_funcs = {
}; };
static int fake_probe(struct platform_device *pdev)
{
return 0;
}
static int fake_remove(struct platform_device *pdev)
{
return 0;
}
static struct platform_driver fake_platform_driver = {
.probe = fake_probe,
.remove = fake_remove,
.driver = {
.name = KUNIT_DEVICE_NAME,
},
};
/** /**
* drm_kunit_helper_alloc_device - Allocate a mock device for a KUnit test * drm_kunit_helper_alloc_device - Allocate a mock device for a KUnit test
* @test: The test context object * @test: The test context object
* *
* This allocates a fake struct &device to create a mock for a KUnit * This allocates a fake struct &device to create a mock for a KUnit
* test. * test. The device will also be bound to a fake driver. It will thus be
* able to leverage the usual infrastructure and most notably the
* device-managed resources just like a "real" device.
* *
* Callers need to make sure drm_kunit_helper_free_device() on the * Callers need to make sure drm_kunit_helper_free_device() on the
* device when done. * device when done.
@ -36,6 +56,9 @@ struct device *drm_kunit_helper_alloc_device(struct kunit *test)
struct platform_device *pdev; struct platform_device *pdev;
int ret; int ret;
ret = platform_driver_register(&fake_platform_driver);
KUNIT_ASSERT_EQ(test, ret, 0);
pdev = platform_device_alloc(KUNIT_DEVICE_NAME, PLATFORM_DEVID_NONE); pdev = platform_device_alloc(KUNIT_DEVICE_NAME, PLATFORM_DEVID_NONE);
KUNIT_ASSERT_NOT_ERR_OR_NULL(test, pdev); KUNIT_ASSERT_NOT_ERR_OR_NULL(test, pdev);
@ -58,6 +81,7 @@ void drm_kunit_helper_free_device(struct kunit *test, struct device *dev)
struct platform_device *pdev = to_platform_device(dev); struct platform_device *pdev = to_platform_device(dev);
platform_device_unregister(pdev); platform_device_unregister(pdev);
platform_driver_unregister(&fake_platform_driver);
} }
EXPORT_SYMBOL_GPL(drm_kunit_helper_free_device); EXPORT_SYMBOL_GPL(drm_kunit_helper_free_device);