tty: amba-pl011: allow shared interrupt
authorDoug Berger <opendmb@gmail.com>
Thu, 9 May 2019 21:11:58 +0000 (14:11 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Tue, 21 May 2019 10:12:03 +0000 (12:12 +0200)
commit9f20e8843edf35a0e4869f9e52b0494cfb1c91fc
treefa57b5d5b98ee366a3f4dde6483504e18388e6e2
parentdfaffb9dca90638f5e2e80f430283b7ecaeb1bb0
tty: amba-pl011: allow shared interrupt

The PL011 register space includes all necessary status bits to
determine whether a device instance requires handling in response
to an interrupt. Therefore, multiple instances of the device could
be serviced by a single shared interrupt, which is the case on BCM7211.

Signed-off-by: Doug Berger <opendmb@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
drivers/tty/serial/amba-pl011.c