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33 lines
1.1 KiB
Diff
33 lines
1.1 KiB
Diff
From f86ed460ad9827b247298e2cf1d271027fcba0a0 Mon Sep 17 00:00:00 2001
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From: Doug Berger <opendmb@gmail.com>
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Date: Mon, 13 May 2019 20:59:45 +0200
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Subject: [PATCH 530/678] tty: amba-pl011: allow shared interrupt
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The PL011 register space includes all necessary status bits to
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determine whether a device instance requires handling in response
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to an interrupt. Therefore, multiple instances of the device could
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be serviced by a single shared interrupt, which is the case on BCM7211.
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Signed-off-by: Doug Berger <opendmb@gmail.com>
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Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
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---
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drivers/tty/serial/amba-pl011.c | 3 ++-
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1 file changed, 2 insertions(+), 1 deletion(-)
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diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c
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index 6f15f32fa194..1121df572ca6 100644
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--- a/drivers/tty/serial/amba-pl011.c
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+++ b/drivers/tty/serial/amba-pl011.c
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@@ -1735,7 +1735,8 @@ 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",
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+ uap);
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}
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/*
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--
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2.19.1
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