drivers/gpu/drm/vc4/tests/vc4_mock_crtc.c

   1 // SPDX-License-Identifier: GPL-2.0
   2
   3 #include <drm/drm_atomic_state_helper.h>
   4 #include <drm/drm_modeset_helper_vtables.h>
   5
   6 #include <kunit/test.h>
   7
   8 #include "vc4_mock.h"
   9
  10 static const struct drm_crtc_helper_funcs vc4_dummy_crtc_helper_funcs = {
  11         .atomic_check   = vc4_crtc_atomic_check,
  12 };
  13
  14 static const struct drm_crtc_funcs vc4_dummy_crtc_funcs = {
  15         .atomic_destroy_state   = vc4_crtc_destroy_state,
  16         .atomic_duplicate_state = vc4_crtc_duplicate_state,
  17         .reset                  = vc4_crtc_reset,
  18 };
  19
  20 struct vc4_dummy_crtc *vc4_mock_pv(struct kunit *test,
  21                                    struct drm_device *drm,
  22                                    struct drm_plane *plane,
  23                                    const struct vc4_crtc_data *data)
  24 {
  25         struct vc4_dummy_crtc *dummy_crtc;
  26         struct vc4_crtc *vc4_crtc;
  27         int ret;
  28
  29         dummy_crtc = drmm_kzalloc(drm, sizeof(*dummy_crtc), GFP_KERNEL);
  30         KUNIT_ASSERT_NOT_NULL(test, dummy_crtc);
  31
  32         vc4_crtc = &dummy_crtc->crtc;
  33         ret = __vc4_crtc_init(drm, NULL,
  34                               vc4_crtc, data, plane,
  35                               &vc4_dummy_crtc_funcs,
  36                               &vc4_dummy_crtc_helper_funcs,
  37                               false);
  38         KUNIT_ASSERT_EQ(test, ret, 0);
  39
  40         return dummy_crtc;
  41 }