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tty: amba-pl011: allow shared interrupt

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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>
This commit is contained in:
Doug Berger 2019-05-09 14:11:58 -07:00 committed by Greg Kroah-Hartman
parent dfaffb9dca
commit 9f20e8843e
1 changed files with 1 additions and 1 deletions
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2
drivers/tty/serial/amba-pl011.c
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@ -1717,7 +1717,7 @@ static int pl011_allocate_irq(struct uart_amba_port *uap)
{
pl011_write(uap->im, uap, REG_IMSC);
return request_irq(uap->port.irq, pl011_int, 0, "uart-pl011", uap);
return request_irq(uap->port.irq, pl011_int, IRQF_SHARED, "uart-pl011", uap);
}
/*