All the handling for the properties was present, but they were never attached to the connector to allow userspace to change them. Add them to the connector. Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com> Reviewed-by: Maxime Ripard <mripard@kernel.org> Signed-off-by: Maxime Ripard <mripard@kernel.org> Link: https://patchwork.freedesktop.org/patch/msgid/20240619153913.2804051-4-dave.stevenson@raspberrypi.com