From: Doug Berger Date: Thu, 9 May 2019 21:11:58 +0000 (-0700) Subject: tty: amba-pl011: allow shared interrupt X-Git-Tag: v5.3-rc1~125^2~66 X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=9f20e8843edf35a0e4869f9e52b0494cfb1c91fc;p=thirdparty%2Fkernel%2Flinux.git 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 Signed-off-by: Greg Kroah-Hartman --- diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c index 89ade213a1a9a..5921a33b2a076 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); } /*