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bc02d15a34
linux/drivers/tty/serial
History
Dan Williams bc02d15a34 serial/8250_pci: add a "force background timer" flag and use it for the "kt" serial port 
Workaround dropped notifications in the iir register.  Register reads
coincident with new interrupt notifications sometimes result in this
device clearing the interrupt event without reporting it in the read
data.

The serial core already has a heuristic for determining when a device
has an untrustworthy iir register.  In this case when we apriori know
that the iir is faulty use a flag (UPF_BUG_THRE) to bypass the test and
force usage of the background timer.

[stable: 3.3.x]
Acked-by: Alan Cox <alan@linux.intel.com>
Cc: stable <stable@vger.kernel.org>
Reported-by: Nhan H Mai <nhan.h.mai@intel.com>
Reported-by: Sudhakar Mamillapalli <sudhakar@fb.com>
Tested-by: Nhan H Mai <nhan.h.mai@intel.com>
Tested-by: Sudhakar Mamillapalli <sudhakar@fb.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2012-04-09 10:38:30 -07:00
..
8250 serial/8250_pci: add a "force background timer" flag and use it for the "kt" serial port 2012-04-09 10:38:30 -07:00
cpm_uart
jsm jsm: Fixed EEH recovery error 2012-01-24 12:55:36 -08:00
21285.c Disintegrate asm/system.h for ARM 2012-03-28 18:30:01 +01:00
68328serial.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
68328serial.h
altera_jtaguart.c
altera_uart.c tty: serial: altera_uart: Check for NULL platform_data in probe. 2012-04-09 10:30:39 -07:00
amba-pl010.c
amba-pl011.c serial: PL011: move interrupt clearing 2012-04-06 14:04:33 -07:00
apbuart.c
apbuart.h
ar933x_uart.c
atmel_serial.c tty/serial: atmel_serial: fix RS485 half-duplex problem 2012-04-09 10:30:39 -07:00
bcm63xx_uart.c
bfin_sport_uart.c
bfin_sport_uart.h
bfin_uart.c serial: bfin-uart: Don't access tty circular buffer in TX DMA interrupt after it is reset. 2012-03-13 14:33:39 -07:00
clps711x.c
crisv10.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
crisv10.h
dz.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
dz.h
efm32-uart.c serial/efm32: add new driver 2012-01-26 11:29:47 -08:00
icom.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
icom.h
ifx6x60.c TTY: remove re-assignments to tty_driver members 2012-03-08 11:37:58 -08:00
ifx6x60.h
imx.c serial: imx: add clk_prepare/clk_unprepare 2012-02-01 14:29:31 +01:00
ioc3_serial.c
ioc4_serial.c TTY: remove serialP.h inclusion from some files 2012-03-08 11:47:02 -08:00
ip22zilog.c
ip22zilog.h
Kconfig tty/serial/omap: console can only be built-in 2012-04-09 10:34:16 -07:00
kgdboc.c
lantiq.c
m32r_sio_reg.h m32r: relocate drivers back out of 8250 dir 2012-02-08 15:04:32 -08:00
m32r_sio.c TTY: remove serialP.h inclusion from some files 2012-03-08 11:47:02 -08:00
m32r_sio.h TTY: serial, include pci.h in m32r_sio 2012-03-08 11:47:02 -08:00
Makefile Merge tag 'tty-3.3-rc3' tty-next 2012-02-10 10:25:27 -08:00
max3100.c
max3107.c
max3107.h
mcf.c
mfd.c
mpc52xx_uart.c mpc5200b/uart: select more tolerant uart prescaler on low baudrates 2012-03-08 13:15:50 -08:00
mpsc.c
mrst_max3110.c
mrst_max3110.h
msm_serial_hs.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
msm_serial.c
msm_serial.h
msm_smd_tty.c TTY: remove re-assignments to tty_driver members 2012-03-08 11:37:58 -08:00
mux.c tty/serial/mux.c: linux/tty.h included twice 2012-02-24 13:50:45 -08:00
mxs-auart.c clock management changes for i.MX 2012-01-09 14:44:15 -08:00
netx-serial.c
nwpserial.c
of_serial.c
omap-serial.c omap-serial: Fix the error handling in the omap_serial probe 2012-04-09 10:30:38 -07:00
pch_uart.c Merge branch 'next' of git://git.infradead.org/users/vkoul/slave-dma 2012-03-29 15:34:57 -07:00
pmac_zilog.c serial: Kill off NO_IRQ 2012-01-26 17:14:50 -08:00
pmac_zilog.h
pnx8xxx_uart.c
pxa.c ARM: device tree work 2012-03-27 16:47:35 -07:00
sa1100.c ARM: 7342/2: sa1100: prepare for sparse irq conversion 2012-03-25 23:57:20 +01:00
samsung.c serial: samsung: fix omission initialize ulcon in reset port fn() 2012-04-09 10:30:39 -07:00
samsung.h
sb1250-duart.c
sc26xx.c
serial_core.c TTY: remove re-assignments to tty_driver members 2012-03-08 11:37:58 -08:00
serial_ks8695.c
serial_txx9.c
sh-sci.c SuperH updates for 3.4 merge window 2012-03-30 00:09:17 -07:00
sh-sci.h
sirfsoc_uart.c pinctrl: API changes to support multiple states per device 2012-03-05 11:22:59 +01:00
sirfsoc_uart.h serial/sirf: fixup for changes to pin control 2012-02-22 17:59:12 +01:00
sn_console.c Miscellaneous Itanium patches 2012-03-23 17:19:37 -07:00
suncore.c tty: sparc: rename drivers/tty/serial/suncore.h -> include/linux/sunserialcore.h 2012-02-10 10:44:35 -08:00
sunhv.c Disintegrate asm/system.h for Sparc 2012-03-28 18:30:03 +01:00
sunsab.c Disintegrate asm/system.h for Sparc 2012-03-28 18:30:03 +01:00
sunsab.h
sunsu.c Disintegrate asm/system.h for Sparc 2012-03-28 18:30:03 +01:00
sunzilog.c Disintegrate asm/system.h for Sparc 2012-03-28 18:30:03 +01:00
sunzilog.h
timbuart.c
timbuart.h
uartlite.c
ucc_uart.c serial: Kill off NO_IRQ 2012-01-26 17:14:50 -08:00
vr41xx_siu.c serial: Kill off NO_IRQ 2012-01-26 17:14:50 -08:00
vt8500_serial.c tty: serial: vt8500: fix annotations for probe/remove 2012-03-12 10:21:55 -07:00
xilinx_uartps.c
zs.c Remove all #inclusions of asm/system.h 2012-03-28 18:30:03 +01:00
zs.h