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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2009-05-15 08:05:02 -0700 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2009-05-15 08:05:02 -0700 |
| commit | 662f11cf2aaedd3d5fe6afbec78ba3288fd0c4ca (patch) | |
| tree | f491041c3f04e5164682bfe67f75aa5fced33609 /drivers/serial | |
| parent | 1f71ebedb3f8ce9108978168759c8551d873a912 (diff) | |
| parent | ad892a63f64888a7b05eb2046febbcfbdd54dfcc (diff) | |
| download | linux-662f11cf2aaedd3d5fe6afbec78ba3288fd0c4ca.tar.bz2 | |
Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc
* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc:
powerpc: Fix PCI ROM access
powerpc/pseries: Really fix the oprofile CPU type on pseries
serial/nwpserial: Fix wrong register read address and add interrupt acknowledge.
powerpc/cell: Make ptcal more reliable
powerpc: Allow mem=x cmdline to work with 4G+
powerpc/mpic: Fix incorrect allocation of interrupt rev-map
powerpc: Fix oprofile sampling of marked events on POWER7
powerpc/iseries: Fix pci breakage due to bad dma_data initialization
powerpc: Fix mktree build error on Mac OS X host
powerpc/virtex: Fix duplicate level irq events.
powerpc/virtex: Add uImage to the default images list
powerpc/boot: add simpleImage.* to clean-files list
powerpc/8xx: Update defconfigs
powerpc/embedded6xx: Update defconfigs
powerpc/86xx: Update defconfigs
powerpc/85xx: Update defconfigs
powerpc/83xx: Update defconfigs
powerpc/fsl_soc: Remove mpc83xx_wdt_init, again
Diffstat (limited to 'drivers/serial')
| -rw-r--r-- | drivers/serial/nwpserial.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/serial/nwpserial.c b/drivers/serial/nwpserial.c index 32f3eaf0d262..9e150b19d726 100644 --- a/drivers/serial/nwpserial.c +++ b/drivers/serial/nwpserial.c @@ -145,11 +145,13 @@ static irqreturn_t nwpserial_interrupt(int irq, void *dev_id) ch = dcr_read(up->dcr_host, UART_RX); if (up->port.ignore_status_mask != NWPSERIAL_STATUS_RXVALID) tty_insert_flip_char(tty, ch, TTY_NORMAL); - } while (dcr_read(up->dcr_host, UART_RX) & UART_LSR_DR); + } while (dcr_read(up->dcr_host, UART_LSR) & UART_LSR_DR); tty_flip_buffer_push(tty); ret = IRQ_HANDLED; + /* clear interrupt */ + dcr_write(up->dcr_host, UART_IIR, 1); out: spin_unlock(&up->port.lock); return ret; |