target/linux/bcm27xx/patches-6.1/950-0984-drm-vc4-tests-Add-helper-to-add-a-new-plane-to-a-sta.patch

   1 From a2f912c44b98acb6c10c977db105e199011c09b5 Mon Sep 17 00:00:00 2001
   2 From: Maxime Ripard <maxime@cerno.tech>
   3 Date: Fri, 14 Apr 2023 12:57:53 +0200
   4 Subject: [PATCH] drm/vc4: tests: Add helper to add a new plane to a state
   5
   6 We'll start to add some tests for the plane state logic, so let's create
   7 a helper to add a plane to an existing atomic state.
   8
   9 Signed-off-by: Maxime Ripard <maxime@cerno.tech>
  10 ---
  11  drivers/gpu/drm/vc4/tests/vc4_mock.h       |  4 ++++
  12  drivers/gpu/drm/vc4/tests/vc4_mock_plane.c | 22 ++++++++++++++++++++++
  13  2 files changed, 26 insertions(+)
  14
  15 --- a/drivers/gpu/drm/vc4/tests/vc4_mock.h
  16 +++ b/drivers/gpu/drm/vc4/tests/vc4_mock.h
  17 @@ -42,6 +42,10 @@ struct vc4_dummy_plane {
  18  struct vc4_dummy_plane *vc4_dummy_plane(struct kunit *test,
  19                                         struct drm_device *drm,
  20                                         enum drm_plane_type type);
  21 +struct drm_plane *
  22 +vc4_mock_atomic_add_plane(struct kunit *test,
  23 +                         struct drm_atomic_state *state,
  24 +                         struct drm_crtc *crtc);
  25
  26  struct vc4_dummy_crtc {
  27         struct vc4_crtc crtc;
  28 --- a/drivers/gpu/drm/vc4/tests/vc4_mock_plane.c
  29 +++ b/drivers/gpu/drm/vc4/tests/vc4_mock_plane.c
  30 @@ -1,6 +1,7 @@
  31  // SPDX-License-Identifier: GPL-2.0
  32
  33  #include <drm/drm_atomic_state_helper.h>
  34 +#include <drm/drm_atomic_uapi.h>
  35  #include <drm/drm_fourcc.h>
  36  #include <drm/drm_modeset_helper_vtables.h>
  37  #include <drm/drm_plane.h>
  38 @@ -46,3 +47,24 @@ struct vc4_dummy_plane *vc4_dummy_plane(
  39
  40         return dummy_plane;
  41  }
  42 +
  43 +struct drm_plane *
  44 +vc4_mock_atomic_add_plane(struct kunit *test,
  45 +                         struct drm_atomic_state *state,
  46 +                         struct drm_crtc *crtc)
  47 +{
  48 +       struct drm_plane_state *plane_state;
  49 +       struct drm_plane *plane;
  50 +       int ret;
  51 +
  52 +       plane = vc4_mock_find_plane_for_crtc(test, crtc);
  53 +       KUNIT_ASSERT_NOT_ERR_OR_NULL(test, plane);
  54 +
  55 +       plane_state = drm_atomic_get_plane_state(state, plane);
  56 +       KUNIT_ASSERT_NOT_ERR_OR_NULL(test, plane_state);
  57 +
  58 +       ret = drm_atomic_set_crtc_for_plane(plane_state, crtc);
  59 +       KUNIT_EXPECT_EQ(test, ret, 0);
  60 +
  61 +       return plane;
  62 +}