linux/drivers/serial
Jay Lubomirski 2f4d4da8f8 serial: clear proper MPSC interrupt cause bits
The interrupt clearing code in mpsc_sdma_intr_ack() mistakenly clears the
interrupt for both controllers instead of just the one its supposed to.
This can result in the other controller appearing to hang because its
interrupt was effectively lost.

So, don't clear the interrupt cause bits for both MPSC controllers when
clearing the interrupt for one of them.  Just clear the one that is
supposed to be cleared.

Signed-off-by: Jay Lubomirski <jaylubo@motorola.com>
Acked-by: Mark A. Greer <mgreer@mvista.com>
Cc: <stable@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2007-06-28 11:38:29 -07:00
..
cpm_uart
jsm
8250_accent.c
8250_acorn.c
8250_au1x00.c
8250_boca.c
8250_early.c
8250_exar_st16c554.c
8250_fourport.c
8250_gsc.c
8250_hp300.c
8250_hub6.c
8250_mca.c
8250_pci.c
8250_pnp.c
8250.c
8250.h
21285.c
68328serial.c
68328serial.h
68360serial.c
amba-pl010.c
amba-pl011.c
atmel_serial.c
atmel_serial.h
bfin_5xx.c
clps711x.c
crisv10.c
dz.c
dz.h
icom.c
icom.h
imx.c
ioc3_serial.c
ioc4_serial.c
ip22zilog.c
ip22zilog.h
Kconfig
m32r_sio_reg.h
m32r_sio.c
m32r_sio.h
Makefile
mcfserial.c
mcfserial.h
mpc52xx_uart.c
mpsc.c serial: clear proper MPSC interrupt cause bits 2007-06-28 11:38:29 -07:00
mux.c
netx-serial.c
of_serial.c
pmac_zilog.c
pmac_zilog.h
pnx8xxx_uart.c
pxa.c
s3c2410.c
sa1100.c
serial_core.c
serial_cs.c
serial_ks8695.c
serial_lh7a40x.c
serial_txx9.c
sh-sci.c
sh-sci.h
sn_console.c
suncore.c
suncore.h
sunhv.c
sunsab.c
sunsab.h
sunsu.c
sunzilog.c
sunzilog.h
uartlite.c
v850e_uart.c
vr41xx_siu.c