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A remove callback just returning 0 is equivalent to no remove callback
at all. So drop the useless function.
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Signed-off-by: Maíra Canal <mairacanal@riseup.net>
Link: https://patchwork.freedesktop.org/patch/msgid/20230224221417.1712368-1-u.kleine-koenig@pengutronix.de
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Some tests will need to provide their own drm_driver instead of relying
on the dumb one in the helpers, so let's create a helper that allows to
do so.
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-11-4615a663a84a@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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The current helper to allocate a DRM device doesn't allow for any
subclassing by drivers, which is going to be troublesome as we work on
getting some kunit testing on atomic modesetting code.
Let's use a similar pattern to the other allocation helpers by providing
the structure size and offset as arguments.
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-10-4615a663a84a@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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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>
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The device managed resources are ran if the device has bus, which is not
the case of a root_device.
Let's use a platform_device instead.
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-8-4615a663a84a@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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We'll need in some tests to control when the device needs to be added
and removed, so let's split the device creation from the DRM device
creation function.
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-7-4615a663a84a@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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The device name isn't really useful, we can just define it instead of
exposing it in the API.
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-6-4615a663a84a@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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The name doesn't really fit the conventions for the other helpers in
DRM/KMS, so let's rename it to make it obvious that we allocate a new
DRM device.
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-5-4615a663a84a@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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drm_kunit_device_init() among other things will allocate a device and
wrap around root_device_register. This function is exported with
EXPORT_SYMBOL_GPL, so we can't really change the license.
Fixes: a77a3ffa151b ("drm/tests: helpers: Add missing export")
Suggested-by: Javier Martinez Canillas <javierm@redhat.com>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-4-4615a663a84a@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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Commit 44a3928324e9 ("drm/tests: Add Kunit Helpers") introduced the
drm_kunit_device_init() function but didn't document it properly. Add
that documentation.
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-3-4615a663a84a@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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We'll need to use those helpers from drivers too, so let's move it to a
more visible location.
Reviewed-by: Javier Martinez Canillas <javierm@redhat.com>
Link: https://lore.kernel.org/r/20221123-rpi-kunit-tests-v3-1-4615a663a84a@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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drm_kunit_device_init() is a public function meant to be used by other
tests, but isn't exported. This leads to modpost errors when the other
tests are compiled as module.
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Maíra Canal <mairacanal@riseup.net>
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
Link: https://patchwork.freedesktop.org/patch/msgid/20221128081938.742410-3-maxime@cerno.tech
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The SPDX header is missing, let's add it and fix the corresponding
checkpatch warning.
Suggested-by: Maíra Canal <mairacanal@riseup.net>
Fixes: 44a3928324e9 ("drm/tests: Add Kunit Helpers")
Reviewed-by: Maíra Canal <mairacanal@riseup.net>
Link: https://lore.kernel.org/r/20221116151833.1679379-2-maxime@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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The MODULE_LICENSE macro is missing from the kunit helpers file, thus
leading to a build error.
Let's introduce it along with MODULE_AUTHOR.
Fixes: 44a3928324e9 ("drm/tests: Add Kunit Helpers")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Reviewed-by: Maíra Canal <mairacanal@riseup.net>
Link: https://lore.kernel.org/r/20221116091712.1309651-2-maxime@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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The kunit helpers code weren't including its header, leading to a
warning that no previous prototype had been defined for public
functions.
Include the matching header to fix the warning.
Fixes: 44a3928324e9 ("drm/tests: Add Kunit Helpers")
Reported-by: kernel test robot <lkp@intel.com>
Reviewed-by: Maíra Canal <mairacanal@riseup.net>
Link: https://lore.kernel.org/r/20221116091712.1309651-1-maxime@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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As the number of kunit tests in KMS grows further, we start to have
multiple test suites that, for example, need to register a mock DRM
driver to interact with the KMS function they are supposed to test.
Let's add a file meant to provide those kind of helpers to avoid
duplication.
Reviewed-by: Noralf Trønnes <noralf@tronnes.org>
Tested-by: Mateusz Kwiatkowski <kfyatek+publicgit@gmail.com>
Link: https://lore.kernel.org/r/20220728-rpi-analog-tv-properties-v9-2-24b168e5bcd5@cerno.tech
Signed-off-by: Maxime Ripard <maxime@cerno.tech>
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