Files
linux-apfs/drivers/tty
Fugang Duan 9d7ee0e28d 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>
2017-09-18 18:19:21 +02:00
..
2017-07-30 07:35:27 -07:00
2017-07-30 07:35:28 -07:00
2017-08-28 20:51:22 +02:00
2017-08-29 15:10:44 -07:00