devm_drm_dev_alloc() can't allocate structures that embed a structure which then again embeds drm_device. Workaround this by adding a driver_private pointer to struct mipi_dbi_dev which the driver can use for its additional state. Signed-off-by: Noralf Trønnes <noralf@xxxxxxxxxxx> --- include/drm/drm_mipi_dbi.h | 2 ++ 1 file changed, 2 insertions(+) diff --git a/include/drm/drm_mipi_dbi.h b/include/drm/drm_mipi_dbi.h index 05e194958265..e24865058d87 100644 --- a/include/drm/drm_mipi_dbi.h +++ b/include/drm/drm_mipi_dbi.h @@ -130,6 +130,8 @@ struct mipi_dbi_dev { * @dbi: MIPI DBI interface */ struct mipi_dbi dbi; + + void *driver_private; }; static inline struct mipi_dbi_dev *drm_to_mipi_dbi_dev(struct drm_device *drm) -- 2.33.0