lib/display: Fix assertion in set_plane()

When cycling throuth planes, we still want to reach the cursor plane. We
have to special case IGT_PLANE_CURSOR as a shorthand to select the
cursor plane (the last plane on the pipe).

Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>

diff --git a/lib/igt_kms.c b/lib/igt_kms.c
index 07b0a4e..eca0f6d 100644 (file)
--- a/lib/igt_kms.c
+++ b/lib/igt_kms.c
@@ -1122,7 +1122,7 @@ static igt_plane_t *igt_pipe_get_plane(igt_pipe_t *pipe, enum igt_plane plane)
        if (plane == IGT_PLANE_CURSOR)
                idx = pipe->n_planes - 1;
        else {
-               igt_assert_f(plane >= 0 && plane < (pipe->n_planes - 1),
+               igt_assert_f(plane >= 0 && plane < (pipe->n_planes),
                             "plane=%d\n", plane);
                idx = plane;
        }