On Mon, Dec 30, 2024 at 11:11:35PM +0100, Marek Vasut wrote: > On 12/30/24 8:18 AM, Liu Ying wrote: > > [...] > > > > diff --git a/drivers/gpu/drm/mxsfb/Kconfig b/drivers/gpu/drm/mxsfb/Kconfig > > > index 264e74f455547..07fb6901996ae 100644 > > > --- a/drivers/gpu/drm/mxsfb/Kconfig > > > +++ b/drivers/gpu/drm/mxsfb/Kconfig > > > @@ -30,6 +30,7 @@ config DRM_IMX_LCDIF > > > select DRM_CLIENT_SELECTION > > > select DRM_MXS > > > select DRM_KMS_HELPER > > > + select DRM_BRIDGE_CONNECTOR > > > > Select DRM_DISPLAY_HELPER. > Without select DRM_BRIDGE_CONNECTOR, the drm_bridge_connector_init() is not > defined . You need both. -- With best wishes Dmitry