diff options
| author | Álvaro Fernández Rojas <noltari@gmail.com> | 2019-07-09 20:32:28 +0200 |
|---|---|---|
| committer | Álvaro Fernández Rojas <noltari@gmail.com> | 2019-07-14 12:44:14 +0200 |
| commit | 42954857190b9df16d9d873ecc7f6cc38e013e44 (patch) | |
| tree | 98c588f629ff534d458eb0884782ea99672d7634 /target/linux/brcm2708/patches-4.19/950-0526-tty-amba-pl011-allow-shared-interrupt.patch | |
| parent | f1875e902d0afb7d9b9e5285b4fd8da7f6c5e30a (diff) | |
| download | upstream-42954857190b9df16d9d873ecc7f6cc38e013e44.tar.gz upstream-42954857190b9df16d9d873ecc7f6cc38e013e44.tar.bz2 upstream-42954857190b9df16d9d873ecc7f6cc38e013e44.zip | |
brcm2708: add linux 4.19 support
Boot tested on Raspberry Pi B+ (BCM2708) and Raspberry Pi 2 (BCM2709)
Signed-off-by: Álvaro Fernández Rojas <noltari@gmail.com>
Diffstat (limited to 'target/linux/brcm2708/patches-4.19/950-0526-tty-amba-pl011-allow-shared-interrupt.patch')
| -rw-r--r-- | target/linux/brcm2708/patches-4.19/950-0526-tty-amba-pl011-allow-shared-interrupt.patch | 28 |
1 files changed, 28 insertions, 0 deletions
diff --git a/target/linux/brcm2708/patches-4.19/950-0526-tty-amba-pl011-allow-shared-interrupt.patch b/target/linux/brcm2708/patches-4.19/950-0526-tty-amba-pl011-allow-shared-interrupt.patch new file mode 100644 index 0000000000..d726ee31d9 --- /dev/null +++ b/target/linux/brcm2708/patches-4.19/950-0526-tty-amba-pl011-allow-shared-interrupt.patch @@ -0,0 +1,28 @@ +From 135b1563027fb8f30be1a9daae3db209166028af Mon Sep 17 00:00:00 2001 +From: Doug Berger <opendmb@gmail.com> +Date: Mon, 13 May 2019 20:59:45 +0200 +Subject: [PATCH 526/703] 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 +@@ -1735,7 +1735,8 @@ 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); + } + + /* |