allow this driver to be removed too.
Signed-off-by: NFelipe Balbi <balbi@ti.com>
Signed-off-by: NAlexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: NRichard Zhao <richard.zhao@freescale.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>