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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>
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@ -1717,7 +1717,7 @@ static int pl011_allocate_irq(struct uart_amba_port *uap)
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{
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pl011_write(uap->im, uap, REG_IMSC);
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return request_irq(uap->port.irq, pl011_int, 0, "uart-pl011", uap);
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return request_irq(uap->port.irq, pl011_int, IRQF_SHARED, "uart-pl011", uap);
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}
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/*
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