From: Arnd Bergmann <arnd@xxxxxxxx> The imx display drivers use the new bridge connector helpers but don't explicitly select CONFIG_DRM_DISPLAY_HELPER, leading to a link failure in rare configurations: ld.lld-20: error: undefined symbol: drm_bridge_connector_init >>> referenced by imx-ldb.c >>> drivers/gpu/drm/imx/ipuv3/imx-ldb.o:(imx_ldb_bind) in archive vmlinux.a >>> referenced by parallel-display.c >>> drivers/gpu/drm/imx/ipuv3/parallel-display.o:(imx_pd_bind) in archive vmlinux.a Move DRM_BRIDGE_CONNECTOR out of the DRM_DISPLAY_HELPER block and instead select that symbol indirectly. Fixes: f94b9707a1c9 ("drm/imx: parallel-display: switch to imx_legacy_bridge / drm_bridge_connector") Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx> --- drivers/gpu/drm/display/Kconfig | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/gpu/drm/display/Kconfig b/drivers/gpu/drm/display/Kconfig index 0f07cf1483ff..beb05d9bab50 100644 --- a/drivers/gpu/drm/display/Kconfig +++ b/drivers/gpu/drm/display/Kconfig @@ -11,14 +11,15 @@ config DRM_DISPLAY_HELPER help DRM helpers for display adapters. -if DRM_DISPLAY_HELPER - config DRM_BRIDGE_CONNECTOR bool select DRM_DISPLAY_HDMI_STATE_HELPER + select DRM_DISPLAY_HELPER help DRM connector implementation terminating DRM bridge chains. +if DRM_DISPLAY_HELPER + config DRM_DISPLAY_DP_AUX_CEC bool "Enable DisplayPort CEC-Tunneling-over-AUX HDMI support" select DRM_DISPLAY_DP_HELPER -- 2.39.5