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drm/vc4: tests: Add function to lookup a plane for a CRTC

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Some tests will need to find a plane to run a test on for a given CRTC.
Let's create a small helper to do that.

Signed-off-by: Maxime Ripard <maxime@cerno.tech>
This commit is contained in:
Maxime Ripard
2023-04-14 11:26:58 +02:00
committed by Dom Cobley
parent ad21b8f36a
commit 18a91914c4
1 changed files with 18 additions and 0 deletions
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18
drivers/gpu/drm/vc4/tests/vc4_mock.h
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@@ -21,6 +21,24 @@ struct drm_crtc *vc4_find_crtc_for_encoder(struct kunit *test,
return NULL;
}
static inline
struct drm_plane *vc4_mock_find_plane_for_crtc(struct kunit *test,
struct drm_crtc *crtc)
{
struct drm_device *drm = crtc->dev;
struct drm_plane *plane;
drm_for_each_plane(plane, drm)
if (plane->possible_crtcs & drm_crtc_mask(crtc))
return plane;
return NULL;
}
struct vc4_dummy_plane {
struct vc4_plane plane;
};
struct drm_plane *vc4_dummy_plane(struct kunit *test, struct drm_device *drm,
enum drm_plane_type type);