Fix around 50 undefined references when DRM_ITE_IT6505=y while DRM_DP_AUX_BUS=m and DRM_DP_HELPER=m. Fixes: b5c84a9edcd4 ("drm/bridge: add it6505 driver") Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Reported-by: kernel test robot <lkp@xxxxxxxxx> Cc: Allen Chen <allen.chen@xxxxxxxxxx> Cc: Robert Foss <robert.foss@xxxxxxxxxx> Cc: Hermes Wu <hermes.wu@xxxxxxxxxx> Cc: AngeloGioacchino Del Regno <angelogioacchino.delregno@xxxxxxxxxxxxx> Cc: Andrzej Hajda <andrzej.hajda@xxxxxxxxx> Cc: Neil Armstrong <narmstrong@xxxxxxxxxxxx> Cc: Laurent Pinchart <Laurent.pinchart@xxxxxxxxxxxxxxxx> Cc: Jonas Karlman <jonas@xxxxxxxxx> Cc: Jernej Skrabec <jernej.skrabec@xxxxxxxxx> Cc: David Airlie <airlied@xxxxxxxx> Cc: Daniel Vetter <daniel@xxxxxxxx> Cc: dri-devel@xxxxxxxxxxxxxxxxxxxxx --- drivers/gpu/drm/bridge/Kconfig | 2 ++ 1 file changed, 2 insertions(+) --- linux-next-20220401.orig/drivers/gpu/drm/bridge/Kconfig +++ linux-next-20220401/drivers/gpu/drm/bridge/Kconfig @@ -78,6 +78,8 @@ config DRM_ITE_IT6505 tristate "ITE IT6505 DisplayPort bridge" depends on OF select DRM_KMS_HELPER + select DRM_DP_AUX_BUS + select DRM_DP_HELPER select EXTCON help ITE IT6505 DisplayPort bridge chip driver.