2019-09-19 14:43:19 +00:00
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From ea75a716955e85ad076dd2861ca9e41def406a1b Mon Sep 17 00:00:00 2001
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2019-07-09 18:32:28 +00:00
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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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2019-09-19 14:43:19 +00:00
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Subject: [PATCH 519/806] tty: amba-pl011: allow shared interrupt
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2019-07-09 18:32:28 +00:00
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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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--- a/drivers/tty/serial/amba-pl011.c
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+++ b/drivers/tty/serial/amba-pl011.c
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2019-12-18 15:38:57 +00:00
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@@ -1733,7 +1733,8 @@ static int pl011_allocate_irq(struct uar
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2019-07-09 18:32:28 +00:00
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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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