tty: serial: lpuart: avoid report NULL interrupt
The current driver register irq in .startup() and free the irq in .shutdown(), then user will see the NULL interrupt output from 'cat /proc/interrupts' after the uart port test completed: ... 41: 515 0 0 0 GICv3 257 Level fsl-lpuart 42: 2 0 0 0 GICv3 258 Level ... It is better to register all the irqs during probe function via devm_request_irq() to avoid to call free_irq(). Signed-off-by:Fugang Duan <fugang.duan@nxp.com> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org>
parent
0e5ec414