From f86ed460ad9827b247298e2cf1d271027fcba0a0 Mon Sep 17 00:00:00 2001 From: Doug Berger Date: Mon, 13 May 2019 20:59:45 +0200 Subject: [PATCH 530/678] 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 Signed-off-by: Florian Fainelli --- drivers/tty/serial/amba-pl011.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c index 6f15f32fa194..1121df572ca6 100644 --- a/drivers/tty/serial/amba-pl011.c +++ b/drivers/tty/serial/amba-pl011.c @@ -1735,7 +1735,8 @@ 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); } /* -- 2.19.1