linux/drivers/tty
George G. Davis 3078e80b03 serial: sh-sci: disable DMA for uart_console
commit 099506cbbc upstream.

As noted in commit 84b40e3b57 ("serial: 8250: omap: Disable DMA for
console UART"), UART console lines use low-level PIO only access functions
which will conflict with use of the line when DMA is enabled, e.g. when
the console line is also used for systemd messages. So disable DMA
support for UART console lines.

Reported-by: Michael Rodin <mrodin@de.adit-jv.com>
Link: https://patchwork.kernel.org/patch/10929511/
Tested-by: Eugeniu Rosca <erosca@de.adit-jv.com>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
Reviewed-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: stable@vger.kernel.org
Signed-off-by: George G. Davis <george_davis@mentor.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2019-06-09 09:17:21 +02:00
..
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 serial: sh-sci: disable DMA for uart_console 2019-06-09 09:17:21 +02:00
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_int.h
rocket.c
rocket.h
synclink_gt.c
synclink.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: Wake up readers after timed out down_write() 2019-01-22 21:40:28 +01:00
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