Maciej W. Rozycki e9a8f4d1de serial: DZ11: avoid a hang at console switch-over ... Changes to the generic console support code that happened a while ago introduced a scenario where the initial console is used in parallel with the final console during a brief period when switching between the two is in progress. During that time a message about the switch-over is printed. With some combinations of chips, firmware and drivers, such as the DEC DZ11 clone used with the DECstation, a hang may happen because the firmware used for the initial console may not expect the state of the chip after it has been initialised by the driver. This is a workaround for the DZ11 which reuses the power-management callback to keep the transmitter of the line associated with the console enabled. It reflects the consensus reached in a discussion a while ago. Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org> Cc: Jiri Slaby <jirislaby@gmail.com> Cc: Alan Cox <alan@lxorguk.ukuu.org.uk> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>		2008-07-24 10:47:29 -07:00
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cpm_uart	kgdb: kgdboc console poll hooks for cpm uart	2008-07-23 11:30:16 -05:00
jsm	serial: use tty_port	2008-07-20 17:12:35 -07:00
8250.c	8250: fix break handling for Intel 82571	2008-07-24 10:47:29 -07:00
8250.h	drivers/serial/: remove CVS keywords	2008-07-20 17:12:35 -07:00
8250_accent.c
8250_acorn.c
8250_boca.c
8250_early.c	8250: switch 8250 drivers to use _nocache ioremaps	2008-05-01 08:04:00 -07:00
8250_exar_st16c554.c
8250_fourport.c
8250_gsc.c	serial/8250_gsc.c: add MODULE_LICENSE	2008-07-24 10:47:29 -07:00
8250_hp300.c	8250_hp300: coding style	2008-02-08 09:22:25 -08:00
8250_hub6.c	8250_hub6: codding style	2008-02-08 09:22:25 -08:00
8250_mca.c
8250_pci.c	serial: add support for a no-name 4 ports multiserial card	2008-07-24 10:47:29 -07:00
8250_pnp.c	drivers/serial/: remove CVS keywords	2008-07-20 17:12:35 -07:00
21285.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
68328serial.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
68328serial.h
68360serial.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
amba-pl010.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
amba-pl011.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
atmel_serial.c	atmel_serial: Fix tty_port breakage	2008-07-20 17:12:37 -07:00
bfin_5xx.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
bfin_sport_uart.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
bfin_sport_uart.h	Blackfin serial driver: this driver enable SPORTs on Blackfin emulate UART	2008-04-30 08:29:30 -07:00
clps711x.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
crisv10.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
crisv10.h
dz.c	serial: DZ11: avoid a hang at console switch-over	2008-07-24 10:47:29 -07:00
dz.h	dz: clean up and improve the setup of termios settings	2008-02-07 08:42:24 -08:00
icom.c	ttydev: Fix up compile failures in the PPC build	2008-07-22 13:03:22 -07:00
icom.h	Coding style fix drivers/serial/icom.h	2008-02-03 14:47:38 +02:00
imx.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
ioc3_serial.c	- Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
ioc4_serial.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
ip22zilog.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
ip22zilog.h
Kconfig	remove the v850 port	2008-07-24 10:47:24 -07:00
kgdboc.c	tty: The big operations rework	2008-04-30 08:29:47 -07:00
m32r_sio.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
m32r_sio.h
m32r_sio_reg.h
Makefile	drivers/serial/: remove CVS keywords	2008-07-20 17:12:35 -07:00
mcf.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
mcfserial.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
mcfserial.h
mpc52xx_uart.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
mpsc.c	kgdb: kgdboc console poll hooks for mpsc uart	2008-07-23 11:30:16 -05:00
mux.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
netx-serial.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
of_serial.c	of_serial: Use linux/of_platform.h instead of asm	2008-06-09 13:46:37 +10:00
pmac_zilog.c	ttydev: fix pamc_zilog for tty pointer move	2008-07-20 17:12:36 -07:00
pmac_zilog.h
pnx8xxx_uart.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
pxa.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
s3c2400.c	[ARM] S3C24XX: Split serial driver into core and per-cpu drivers	2008-07-03 16:51:31 +01:00
s3c2410.c	[ARM] S3C24XX: Split serial driver into core and per-cpu drivers	2008-07-03 16:51:31 +01:00
s3c2412.c	[ARM] S3C24XX: Split serial driver into core and per-cpu drivers	2008-07-03 16:51:31 +01:00
s3c2440.c	[ARM] S3C24XX: Split serial driver into core and per-cpu drivers	2008-07-03 16:51:31 +01:00
sa1100.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
samsung.c	port_fixups: Fix ups for tty port changes	2008-07-22 13:03:29 -07:00
samsung.h	[ARM] S3C24XX: Split serial driver into core and per-cpu drivers	2008-07-03 16:51:31 +01:00
sb1250-duart.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
sc26xx.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
serial_core.c	tty: rework break handling	2008-07-22 13:03:28 -07:00
serial_cs.c	pcmcia: replace kio_addr_t with unsigned int everywhere	2008-02-05 09:44:08 -08:00
serial_ks8695.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
serial_lh7a40x.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
serial_txx9.c	ttydev: Fix up compile failures in the PPC build	2008-07-22 13:03:22 -07:00
sh-sci.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
sh-sci.h	sh-sci: avoid writing to nonexistent registers	2008-05-08 19:51:59 +09:00
sn_console.c	- Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
suncore.c
suncore.h
sunhv.c	ttydev: fix pamc_zilog for tty pointer move	2008-07-20 17:12:35 -07:00
sunsab.c	ttydev: fix pamc_zilog for tty pointer move	2008-07-20 17:12:35 -07:00
sunsab.h
sunsu.c	ttydev: fix pamc_zilog for tty pointer move	2008-07-20 17:12:35 -07:00
sunzilog.c	ttydev: fix pamc_zilog for tty pointer move	2008-07-20 17:12:35 -07:00
sunzilog.h
uartlite.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
ucc_uart.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
v850e_uart.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
vr41xx_siu.c	Fix compile errors in SGI console drivers (linux-next tree)	2008-07-20 17:12:36 -07:00
zs.c	serial: Z85C30: avoid a hang at console switch-over	2008-07-24 10:47:29 -07:00
zs.h