openwrt/target/linux/brcm2708/patches-4.19/950-0519-tty-amba-pl011-allow-shared-interrupt.patch
Koen Vandeputte e115fa478f kernel: bump 4.19 to 4.19.90
Refreshed all patches.

Remove upstreamed:
- 010-dmaengine-dw-dmac-implement-dma-prot.patch
- 950-0148-Increase-firmware-call-buffer-size-to-48-bytes.patch
- 950-0206-Mailbox-firmware-calls-now-use-kmalloc-2749.patch
- 402-leds-trigger-netdev-fix-handling-on-interface-rename.patch

Fixes:
- CVE-2019-19332

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
[Add 010-dt-bindings-dmaengine-dw-dmac-add-protection-control.patch]
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2019-12-24 15:34:43 +01:00

29 lines
1.0 KiB
Diff

From ea75a716955e85ad076dd2861ca9e41def406a1b Mon Sep 17 00:00:00 2001
From: Doug Berger <opendmb@gmail.com>
Date: Mon, 13 May 2019 20:59:45 +0200
Subject: [PATCH 519/806] 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 <opendmb@gmail.com>
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
---
drivers/tty/serial/amba-pl011.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
--- a/drivers/tty/serial/amba-pl011.c
+++ b/drivers/tty/serial/amba-pl011.c
@@ -1733,7 +1733,8 @@ static int pl011_allocate_irq(struct uar
{
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);
}
/*