From mboxrd@z Thu Jan 1 00:00:00 1970 From: Florian Fainelli Subject: [PATCH] tty: amba-pl011: allow shared interrupt Date: Thu, 9 May 2019 14:11:58 -0700 Message-ID: <20190509211159.29364-1-f.fainelli@gmail.com> Return-path: Sender: linux-kernel-owner@vger.kernel.org To: linux-kernel@vger.kernel.org Cc: bcm-kernel-feedback-list@broadcom.com, Doug Berger , Florian Fainelli , Russell King , Greg Kroah-Hartman , Jiri Slaby , "open list:SERIAL DRIVERS" List-Id: linux-serial@vger.kernel.org From: Doug Berger 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 | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c index 89ade213a1a9..5921a33b2a07 100644 --- a/drivers/tty/serial/amba-pl011.c +++ b/drivers/tty/serial/amba-pl011.c @@ -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); } /* -- 2.17.1