Phil Elwell bff91a961a sc16is7xx: Fix for "Unexpected interrupt: 8" ... [ Upstream commit 30ec514d44 ] The SC16IS752 has an Enhanced Feature Register which is aliased at the same address as the Interrupt Identification Register; accessing it requires that a magic value is written to the Line Configuration Register. If an interrupt is raised while the EFR is mapped in then the ISR won't be able to access the IIR, leading to the "Unexpected interrupt" error messages. Avoid the problem by claiming a mutex around accesses to the EFR register, also claiming the mutex in the interrupt handler work item (this is equivalent to disabling interrupts to interlock against a non-threaded interrupt handler). See: https://github.com/raspberrypi/linux/issues/2529 Signed-off-by: Phil Elwell <phil@raspberrypi.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Sasha Levin <sashal@kernel.org>		2019-11-06 13:05:15 +01:00
..
hvc	tty: Don't force RISCV SBI console as preferred console	2019-05-22 07:37:43 +02:00
ipwireless	tty: ipwireless: fix missing checks for ioremap	2019-05-31 06:46:30 -07:00
serdev
serial	sc16is7xx: Fix for "Unexpected interrupt: 8"	2019-11-06 13:05:15 +01:00
vt	vt/fbcon: deinitialize resources in visual_init() after failed memory allocation	2019-06-09 09:17:21 +02:00
amiserial.c
cyclades.c
ehv_bytechan.c
goldfish.c
isicom.c
Kconfig	tty: ldisc: add sysctl to prevent autoloading of ldiscs	2019-04-17 08:38:47 +02:00
Makefile
mips_ejtag_fdc.c
moxa.c
moxa.h
mxser.c
mxser.h
n_gsm.c
n_hdlc.c	tty/n_hdlc: fix __might_sleep warning	2019-01-31 08:14:36 +01:00
n_null.c
n_r3964.c
n_tracerouter.c
n_tracesink.c
n_tracesink.h
n_tty.c
nozomi.c
pty.c
rocket.c	tty: rocket: fix incorrect forward declaration of 'rp_init()'	2019-07-10 09:53:44 +02:00
rocket.h
rocket_int.h
synclink.c
synclink_gt.c
synclinkmp.c
sysrq.c
tty_audit.c
tty_baudrate.c
tty_buffer.c	tty: increase the default flip buffer limit to 2*640K	2019-04-05 22:33:13 +02:00
tty_io.c	tty: ldisc: add sysctl to prevent autoloading of ldiscs	2019-04-17 08:38:47 +02:00
tty_ioctl.c
tty_jobctrl.c
tty_ldisc.c	tty: ldisc: add sysctl to prevent autoloading of ldiscs	2019-04-17 08:38:47 +02:00
tty_ldsem.c	tty/ldsem, locking/rwsem: Add missing ACQUIRE to read_failed sleep loop	2019-08-16 10:12:50 +02:00
tty_mutex.c
tty_port.c	tty: do not set TTY_IO_ERROR flag if console port	2018-12-13 09:16:22 +01:00
vcc.c